Annotated 

Bibliography of 

North American 

Geology, 1950

By MARJORIE HOOKER

GEOLOGICAL SURVEY BULLETIN 985

UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON : 1952
UNITED STATES DEPARTMENT OF THE INTERIOR 

Oscar L. Chapman, Secretary

GEOLOGICAL SURVEY 

W. E. Wrather, Director

For sale by the Superintendent of Documents, U. S. Government Printing Office 

Washington 25, D. C. - Price $1.00 (paper cover)
CONTENTS

Introductio'n _________________.._._^_-__-__.._.--...___._.____..___ 1

Organization of the index....-__________j______-___._____________ 2

How to use the index.._.-___-_______-__-___-__-____-____-_____ 5

Serials _ ____----_-_-_----___-___-_-_---__-_--_---_-------_-_-----_ 7

Bibliography ______________________________________________________ 17

Index __________-_________________________ __-___-__--__--__.______ 291

in

ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN

GEOLOGY

1950

BY MARJORIE HOOKER

INTRODUCTION

The current annual volume of the bibliographic series lists publications concerning the geology of the North American continent, 

including adjacent islands, Hawaii, and Guam, that have appeared 

in the literature during 1950. In addition, a few items published 

prior to 1950 and not included in previous volumes are cited. Articles 

by American authors published in foreign journals are cited if they 

deal with North American localities or are of a general character, but 

not if they deal with foreign areas. Articles by foreign' authors 

on North America are included regardless of place of publication; 

those of a general character are included if they appeared in North 

American journals.

The citations are listed alphabetically by author, with full title 

and publication data. Beginning with this volume, brief annotations 

are given indicating the scope of the paper and, where possible, the 

principal facts and conclusions. Annotations are not given for abstracts or citations with self-explanatory titles. The author section 

of the volume is followed by a subject index to the papers cited. The 

organization of the index is described on page 2 and suggestions 

are made concerning its use.

Geologic names in the notes are those employed by the individual 

authors, and their use here does not imply approval by the-Geological 

Survey.

Assistance by V. L. Skitsky in the preparation of a part of the 

annotations, and by Ruth R. Dunaven, Marie F. Wandel, and Jane 

Reger in the preparation of the volume is gratefully acknowledged.

The following U. S. Geological Survey bulletins comprise the issues 

of the Bibliography of North American Geology: 746-747 (1785-1918), 

823 (1919-1928), 937 (1929-1939), 938 (1940-1941), 949 (1942-1943), 

952 (1944-1945), 958 (1946-1947), 968 (1948), 977 (1949).
2 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950 

OBGANIZATION OF THE INDEX

The index to a bibliography can be used most effectively when the 

reader is familiar with its organization, and the following section 

describes the system of headings, subheadings, and entries used in 

the Index to the Bibliography of North American Geology.

Headings. The headings comprise the main subdivisions of the 

index and are recognized by their position flush with the margin of 

the column. They can be classified into two general types: geographic 

headings and subject headings. Typical examples of headings are 

Addresses, Alabama, Alberta, Anticlines. Although most of the 

headings remain the same in each issue of the bibliography, new ones 

appear and others are discontinued as the need arises.

Headings with Cross References. Some headings have a cross reference only, that is, no entries are listed under the heading and the 

reader is referred to another heading. Examples are:

Dinosauria. See Reptilla. 

Footprints. See Tracks and trails. 

Miocene. See Tertiary.

Some of the headings having entries listed under them have cross 

references to other headings of a similar or related nature. Examples 

are:

Mollusca. See also Cephalopoda, Gastropoda, Invertebrata, Pelecypoda, Scaphopoda. 

Mineral resources. See also the subheading Economic geology under the various

states and countries.

(geographic Headings. The geographic headings are names of

countries and colonial possessions in North America, the states, territories, and possessions of the United States, the provinces of Canada,

and well-known physiographic areas (e. g. Appalachians, Gulf Coast). 

Examples of geographic headings are: Alabama, Alberta, Canada, 

Dominican Republic, Jamaica, Mexico, Mississippi Valley, Nevada, 

Ontario, United States. Canada and the United States are headings 

used to index papers covering these areas or more than two or three 

states or provinces. For example, the article "Oil and gas exploration 

in Manitoba" is indexed under Manitoba, but "Western Canada's oil

and gas potentialities" is. indexed under Canada and not under each

of the provinces discussed. Similarly, "Feldspar and mica deposits

of southeastern United States" is indexed under United States and

not under each state.

Subject Headings. The subject headings deal with the subject of 

the paper rather than the geographic areas. They include, among 

others, the general subdivisions of geology, such as Economic geology, 

Mineralogy, Paleontology, the classes of animals, such as Porifera, 

Brachiopoda, Mollusca, the common economic mineral groups, such 

as Copper, Gold, Silver, and other geologic subjects. A few of the 

subject headings and the scope of the entries listed under each are:
INTRODUCTION 3

Heading Entries

Artificial minerals _____^ Names of minerals or systems.

Bibliography _____________ ___ Subject, area, or individual.

Biography_____________________ Individual names.

Construction materials_____ __ Chiefly areas.

Correlations ______________ Chiefly geographical; some age.

Engineering geology _ __ Subject and area.

Experimental investigations _____ Subject.

Geologic formations_____ _____ Listed by name of formation, and only

detailed information indexed.

Geologic formations, lists, sections, Area listing of all formation tables 

tables. and sections.

Geologic history_____________ Area.

Geologic maps______________ Area; sketch maps included.

Geologic thermometry___________ Subject.

Geologic time _ .Subject.

Guidebooks_____________..._ Areas covered by field trips.

History __________________ History of various organizations or

geological investigations.

Industrial minerals _ Subject or area.

Mineral collecting___________ Area.

Mineral .deposits.____________ Area; includes only descriptive

articles.

Mineral deposits, origin,_____ __ Area; includes articles discussing

origin of minerals or ores.

Mineral descriptions__________ Mineral name listing.

Mineral resources_ _________ Area; includes articles dealing with

several minerals not indexed individually.

Nomenclature- ___ _ _ All types, mineralogic, paleontologic,

etc.

Oil and gas fields_____________ Listed by name of field.

Paleoclimatology _ _ ___ Subject and area.

Paleoecology_______________ Subject and area.

Paleogeography _ ___ Subject and area.

Permafrost. ___. Subject and area.

Photogeology _______________ Articles on the application of aerial

photography to geology.

Popular and elementary _______ Articles written for the layman.

Rock descriptions____________ Listed by rock names and areas.

Study and teaching______,_____ Articles dealing with the educational

aspects of geology.

Submarine geology____________ Subject and area.

Surveys__________________ Articles on the activities of the U. S.

Geological Survey and of other surveys.

Systems____ ________;___ Articles on the chemical rock-forming

systems; listed alphabetically.

Subheadings. Subheadings are used under the geographic headings and under four of the subject headings to group the entries. 

Subheadings are in italic type and indented two spaces from the 

margin. The following subheadings are used: Areas described (used 

for monographs), Economic geology, Geologic maps, Grownd water,
4 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Historical geology, Mineralogy, Paleontology, Petrology, Physical 

geology, Physiographic geology. Index entries that do not fall in 

any of these categories are placed directly under the geographic heading without any subheading.

The subject headings, Earth, Maps, Paleontology, and Technique, 

have subheadings. The heading Earth has subheadings Crust, Interior, and Temperature. The heading Paleontology has sub-headings General, and the age groups, Cambrian, Ordovician, etc. The 

heading Maps (exclusive of Geologic Maps, which is a separate heading) contains such subheadings as are needed to group the various 

entries. Typical subheadings for Maps are Aeromagnetic, Geophysical, Mineral, Paleogeographic, Tectonic. The heading Technique also has such subheadings as are needed to group the entries. 

Typical subheadings under Technique are Apparatus, Geophysical, 

Mineralogic, Petr^o graphic, Photographic.

Entries. The entries constitute the main subdivisions of the headings. They are indented four spaces from the margin and are printed 

in Roman type similar to that used for the headings. The entries can 

be either subject or geographic. Under geographic headings the 

entries may be additional geographic breakdowns or a combination of 

subject and geographic breakdowns as shown by the following examples:

Ontario

Economic geology

Beatty Township

Garrison Township

Gold, Konoeivmi Lake area

Porcupine area 

Natural gas

Ol den-Bedford .area

Under subject ladings, the entries may be either subject or geographic depending on the character of the articles indexed. The 

notes under Entries in the list given above indicate how they may

differ. Each entry in the index is followed by the name of the author 

to whose paper reference is made. A number following the author's

name refers to the paper so numbered ill the Bibliojpphy If ffiOre 

than one paper is listed under an author's name, initials care given

Witla authors' zaa-mes oi^ly if more tHjxn one author- Kas tke Same last

name. A typical section of the index follows:

Gems and gem materials.

Cunacla, Baffin Island ': Field. D. S. M. 3 

Emerald, absorption spectrum : .A-oclerson, B. \v.

Diamond, Slijper: Kohn

Twinning : Slawson 1 

Idaho : Carpenter, J. T.; Dake 1

Ta^elte, Clear Creok. California : Inman W. U. Maryland, Wllliamsite; murmonai c. n.

Montana: Dake 1
INTRODUCTION 5 

HOW TO USE THE INDEX

The following examples and suggestions may aid the reader in his 

use of the index.

Let us suppose that references on petroleum in New York State are 

sought. A definite geographic locality is concerned, therefore the 

first heading to look under is a geographic one. In this case" it is New 

York. Petroleum articles fall under the subheading Economic 

geology. The entry then reads Petroleum, and is followed by additional data if any are indicated.

Thus one finds the following:

New York.

Economic geology.

Petroleum, Cambro-Ordovician : Swartz

The same reference appears under the subject heading Petroleum, and 

reads as follows: /

Petroleum,

New York, Cambro-Ordovlcian : Swartz

For the second example, let us suppose that one is interested in 

Ordovician trilobites. The first heading to consult is Trilobita under 

which are found, among others, the following entries:

Trilobita. '' 

Montana, Big Snowy Mts., Ordovician : Lochman 3 

Ordovician, genotypes : Whittington 1 

Protaspid, Ordovician, ontogenetic development: Ross, R. J.

Other references might be found by looking under the heading Paleontology, subheading Orddvician, which will contain not only the references to trilobites but other classes of animals as well.

For the third example, let us suppose that general articles on mineralogy are desired. The heading Mineralogy will have entries to such 

articles. For example:

Mineralogy.

Abrasion hardness: Jaggar

Atomic models for teaching : Henderson, D. M. 1

Calcium carbonate, solution rate : Garrels

Carbonate rocks, mineral and chemical characteristics: Gault 2

On the other hanH, specific items, such as the description of a new 

mineral, are found under the heading Mineral descriptions.

In looking for any particular item in the index, it is helpful to 

remember that most of the individual items are grouped under larger 

headings rather than indexed separately. The San Ardo oil field is 

not found under S, but in its proper alphabetical place under the 

heading Oil and gas fields. Long Island is not under L, but under 

New York. Frozen mammoth is not under F, but under Mammalia 

or Vertebrata. The mineral cancrinite is not under C, but under 

Mineral descriptions or the locality heading.

SERIALS

The following list gives both the abbreviated citation and the full name of the 

periodicals and serials which have been examined in the preparation of 

the bibliography. The place of publication is also given.

Acad. Nac. Cienc. Mem. R'ev. Academia Nacional de Ciencias, Memorias y 

Revista. Mexico City.

Acad. Nat. Sci. Phila. Notulae Naturae; Proc. Academy of Natural Sciences 

of Philadelphia Notulae Naturae; Proceedings. Philadelphia.

Acta Crystallographica. Cambridge, England.

Ala. Geol. Survey Bull.; Circ. Alabama Geological Survey Bulletin ; Circular. 

University, Ala.

Alberta Research Council Contr.; Rpt. Alberta Research Council Contribution; Reports. Edmonton, Alberta.

Am. Acad. Arts and Sci. Proc. American Academy of Arts and Sciences Proceedings. Boston, Mass.

Am. Alpine Jour. American Alpine Journal. New York.

Am. Antiquity American Antiquity. Menasha, Wis.

Am. Assoc. Petrol. Geol. Bull. American Association of Petroleum Geologists 

Bulletin. Tulsa; Okla.

Am. Ceramic Soc. Bull; Jour. American Ceramic Society Bulletin; Journal. 

Columbus, Ohio.

Am. Geol. Inst. Rpt. American Geological Institute Report. Washington.

Am. Geophys. Union Trans. American Geophysical Union Transactions. 

Washington.

Am. Jour. Botany American Journal of Botany. Lancaster, Pa.

Am. Jour. Sci. American Journal of Science. New Haven, Conn.

Am. Midland Naturalist American Midland Naturalist. Notre Dame, Ind.

Am. Mineralogist American Mineralogist. Ann Arbor, Mich.

Am. Mus. Nat. History Bull.; Novitates American Museum of Natural History 

Bulletin; Novitates. New York.

Am. Philos. Soc. Proc.; Trans.; Yearb. American Philosophical Society Proceedings; Transactions; Yearbook. Philadelphia.

Am. Scientist American Scientist. New Haven, Conn.

Am. Water Works Assoc. Jour. American Water Works Association Journal. 

New York.

Annals Ky. Nat. History Annals of Kentucky Natural History. Louisville, Ky.

Appalachia. Boston, Mass.

Arctic. Montreal.

Ariz. Bur. Mines Bull., Geol. Ser. Arizona Bureau of Mines Bulletin, Geological 

Series. Tucson, Ariz.

Ark. Res. Dev. Comm., Div. Geology, Bull.; Inf. Circ. Arkansas Resources and 

Development Commission, Division of Geology, Bulletin; Information 

Circular. Little Rock, Ark.

Ark. Univ., Inst. Science and Technology, Research Ser. Arkansas University, 

Institute of Science and Technology, Research Series. Fayetteville, Ark.

7
8 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Asoc. Mex. Ge61. Petrol. Bol. Asociaci6n Mexicana de Geologos. Petroleros

Boletln. Mexico City. 

Assoc. Am. Geographers Annals Association of American Geographers Annals.

Lancaster, Pa. 

Assoc. Canadienne-Frangaise Av. Sci. Annales Association Canadienne-Frangaise pour 1'Avancement des Sciences Annales. Montreal. 

Auk The Auk. Lancaster. Pa.

Beach Erosion Board, Tech. Memo.- Beach Erosion Board, Technical Memorandum. Washington.

Bol. Historia Nat. Boletin de Historia Natural. Habana.

Bot. Gaz. Botanical Gazette. Chicago.

Bot. Rev. Botanical Review. Lancaster, Pa.

British Columbia Dept. Mines Ann. Rpt.; Bull. British Columbia Department 

of Mines Annual Report; Bulletin. Victoria, B. C.

Bull. Am. Paleontology Bulletin of American Paleontology. Ithaca, N. Y.

Butler Univ. Bot. Studies Butler University Botanical Studies. Indianapolis, 

Ind.

Calif. Acad. Sci. Proc. California Academy of Sciences Proceedings. San 

Francisco.

Calif. Dept. Nat. Res., Div. Mines Bull.; Spec. Rpt. California Department of. 

Natural Resources, Division of Mines Bulletin; Special Report. San 

Francisco.

Calif. Dept. Public Works, Water Res. Div. Bull. California Department of 

Public Works, Water Resources Division Bulletin. Sacramento, Calif.

Calif. Jour. Mines and Geology California Journal of Mines and Geology. Sacramento, Calif.

Calif. Oil Fields California Oil Fields. San Francisco.

Calif. Univ., Scripps Inst. Oceanography, Submarine Geology Rpt. California 

University, Scripps Institution of Oceanography, Submarine Geology Report. La Jolla, Calif.

Calif. Univ. Seismog. Sta. Bull. California University Seismographic Station 

Bulletin. Berkeley, Calif.

Canada Dept. Mines and Tech. Surveys, Mines Br., Memo. ser. Canada Department of Mines and Technical Surveys, Mines Branch, Memorandum series. 

Ottawa.

Canada Dominion Observatory Pubs. Canada r»ominion Observatory Publications. Ottawa.

Canada Geol. Survey Bull.; Geophysics Paper; Mem.; Paper Canada Geological

Survey Bulletin ; Geophysics Paper ; Memoir ; Paper. Ottawa. 

Canada Natl, MUS, BUll, Canada National Museum Bulletin. Ottawa. 

Canadian Alpine Jour.- Canadian Alpine Journal. Banff, Alberta.

Canadian Field-Naturalist. Ottawa.

Canadian Geog. Jour. Canadian Geographical Journal. Montreal Canadian Inst, Mining ana Metallurgy irans. cana«uin mst.mte »* »n=i»K

and Metallurgy Transactions. Montreal.

Canadian Min. Jour. Canadian Mining Journal, Gardenvale, Quebec.

Canadian Min. Met. Bull. Canadian Mining and Metallurgical Bulletin. Montreal,

Carnegie Inst. Washington Pubs. Carnegie Institution of Washington Publications. Washington. 

Chicago Acad. Sci. Bull. Chicago Academy of Science Bulletin. Chicago.
SERIALS 9

Chronica Botanica. Waltham, Mass..

Ciencia. Mexico City.

Colo. School of Mines Quart. Colorado School of Mines Quarterly. Golden, 

Colo.

Colo. Water Conserv. Bd., Ground Water Ser. Circ. Colorado Water Conservation Board, Ground Water Series Circular. Denver, Colo. 

Colo.-Wyo. Acad. Sci. Jour. Colorado-Wyoming Academy of Science Journal. 

Boulder, Colo.

Columbia Univ., Lamont Geol. Observatory, Tech. Rpt. Columbia University, 

Lament Geological Observatory, Technical Report. New York.

Compass The Compass. Menasha, Wis.

Condor The Condor. Berkeley, Calif.

Conn. Acad. Arts Sci. Trails. Connecticut Academy of Arts and Sciences 

Transactions. New Haven, Conn.

Conn. Geol. Nat. History Survey Bull.; Misc. Ser. Connecticut Geological and 

Natural History Survey Bulletin; Miscellaneous Series. Hartford, Conn.

Dansk Geol. F0ren. Meddelelser Dansk Geologisk F0rening Meddelelser.

Copenhagen, Denmark. 

Denison Univ. Sci. Lab. Jour. Denison University Scientific Laboratories

Journal. Granville, Ohio. 

Desert Mag. Desert Magazine. El Centro, Calif.

Earth Sci. Digest Earth Science Digest. Revere, Mass.

Earthquake Notes. Washington.

Ecol. Mon. Ecological Monographs. Durham, N. C.

Ecology. Brooklyn, N. Y.

Econ. Geology Economic Geology. Urbana, 111.

Elisha Mitchell Sci. Soc. Jour. Elisha Mitchell Scientific Society Journal.

Chapel Hill, N. C.

Eng. Jour. Engineering Journal. Montreal. 

Eng. Min. Jour. Engineering and Mining Journal. New York. 

Engineering and Science. Pasadena, Calif. 

Evolution. Lancaster, Pa.

Field & Lab. Field & Laboratory. Dallas, Texas.

Fieldiana'; Botany. Chicago.

Fieldiana; Geology. Chicago.

Fieldiana; Zoology. Chicago.

Fieldiana; Zoology Mem. Fieldiana; Zoology Memoirs. Chicago.

Fla. Acad. Sci., Quart. Jour. Florida Academy of Sciences, Quarterly Journal.

Gainesville, Fla. 

Fla. Geol. Survey Inf. Circ. Florida Geological Survey Information Circular.

Tallahassee, Fla.

Fondren Science Ser. Fondren Science Series. Dallas, Texas. 

Frontiers. Philadelphia.

Ga. Geol. Survey Bull.; Circ. Georgia Geological Survey Bulletin; Circular.

Atlanta, Ga.

Gems and Genaology. Los Angeles. 

Geochirnica et Cosrnochiinica Acta. London. 

Geog. Rev. Geographical Review. New York. 

Geol. Assoc. Canada Proc. Geological Association of Canada Proceedings.

Canada.
1 0 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GE OLOGY, 1950

Geol. Soc. Am. Bull. ; Interim Proc. ; Mem. ; Proc. Geological Society of 

America Bulletin ; Interim Proceedings ; Memoir ; Proceedings. New 

York.

Geophysics. Austin, Texas.

Harvard Ooll. Mus. Comp. Zoology Bull. Harvard College Museum of Comparative Zoology Bulletin. Cambridge, Mass. 

Harvard Univ. Bot. Mus. Leaflets Harvard University Botanical Museum

Leaflets. Cambridge, Mass. 

Hopper The Hopper. Norman, Okla.

Idaho Bur. Mines and Geology Pamph. Idaho Bureau of Mines and Geology

Pamphlet. Moscow, Idaho. 

111. State Acad. Sci. Trans. Illinois State Academy of Science Transactions.

Springfield, 111. 

111. State Geol. Survey Bull.; Circ. ; 111. Petrol.; Rpt. Inv. Illinois, State Geological Survey Bulletin ; Circular ; Illinois Petroleum ; Report of Investigations. Urbana, 111. 

111. State Water Survey Div. Bull.; Rpt. Inv. Illinois State Water Survey

Division Bulletin; Report of Investigations. Urbana, 111. 

111. Univ. Eng. Expt. Sta. Circ. Illinois University Engineering Experiment

Station Circular. Urbana, 111. 

Ind. Acad. Sci. Proc. Indiana Academy of Science Proceedings. Indianapolis,

Ind. 

Ind. Dept. Conserv., Div. Geology Bull. Indiana Department of Conservation,

Division of Geology Bulletin. Bloomington, Ind. 

Ind. Dept. Conserv., Div. Water Res. Bull. Indiana Department of Conservation, Division of Water Resources Bulletin. Indianapolis, Ind. 

Ing. Hidraulica Mexico Ingenieria Hidraulica en Mexico. Mexico City. 

Internat. Geol. Gong., 18th, Great Britain, Rpt. International Geological Congress, 18th, Great Britain, Report. London.

Johns Hopkins Univ. Studies in Geology Johns Hopkins University Studies

in Geology. Baltimore, Ma.

Jour. Geology Journal of Geology. Chicago.

.TOUr. Mammalogy Journal of Mammalogy. Baltimore, Md.

Jour. Marine Research journal of Marine Researcn. Kew Haven, conn.

-T<^T,. Mottua .Toxirnai of Metals. New York.

Jour. Paleontology Journal or Paieontoiosy. T^T,,,*, oitl,^.

Jour Petroleum Technology Journal Of Petroleum Technology. Dallas, Tex.

JOUr, Sea. Petrology -Journal of Sedimentary Petrology. MenflShfl, WlS.

Kans. Acaa. sci. a-ra^. Ktt»»n«, ^OC,A^V Gt Sciences Transactions.

Kans. (

Kans. Univ. Paieont. Contr. -Kansas University PaleontologiCal

tions. Lawrence, Kans. 

Kang, Univ. Science Bull. Kansas university Science Bulletin. Lawrence,

Kans. 

Kans. Univ., State Geol. Survey Bull. Kansas University, State Geological

Survey Bulletin. Lawrence, Kans. 

Ky. Acad. Sd. Trans. Kentucky Academy of Science Transactions. Lexington, Ky. ' 

Ky. Geol. Survey Bull. ; Rpt. Inv. ; Reprint Ser. Kentucky Geological Survey

Bulletin ; Report of Investigations ; Reprint Series. Lexington, Ky.
SERIALS 11

Los Angeles County Mus. Quart.; Science Ser. [Paleontology Pub.] Los Angeles 

County Museum Quarterly; Science Series [Paleontology Publication]. 

Los Angeles.

Maine Technology Expt. Sta. Paper Maine Technology Experiment Station 

Paper. Orono, Maine.

Manitoba Dept. Mines and Nat. Res., Mines Br. Pub. Manitoba Department of 

Mines and Natural Resources, Mines Branch Publication. Winnipeg, 

Manitoba.

Md. Dept. Geology, Mines and Water Res. Bull. Maryland Department of 

Geology, Mines and Water Resources Bulletin. Baltimore, Md.

Maryland Naturalist. Baltimore, Md.

Mazama. Portland, Oregon.

Meddelelser om Gr0nland. Copenhagen, Denmark.

Meteor. Soc. Contr. Meteoritical Society Contributions. Los Angeles.

Mexico Inst. Nac. Inv. Rec. Miner. Bol. Mexico Institute Nacional para la 

Investigaci6n de los Recursos Minerales de Mexico Boletfn. Mexico City.

Mexico (City) Univ. Nac., Inst. Geologla Bol. Mexico (City) Universidad 

Nacional, Institute de Geologfa Boletln. Mexico City.

Mich. Acad. Sci. Papers Michigan Academy of Science, Arts and Letters Papers. 

Ann Arbor, Mich.

Mich. Univ., Lake Hydraulics Lab., Research Pub. Michigan University, Lake 

Hydraulics Laboratory, Research Publication. Ann Arbor, Mich.

Mich. Univ. Mus. Paleontology Contr. Michigan University Museum of Paleontology Contributions. Ann Arbor, Mich.

Micropaleontologist The Micropaleontologist. New York.

Military Engineer. Washington.

Min. Gong. Jour. Mining Congress Journal. Washington.

Min. Eng. Mining Engineering. New York.

Min. Met. Soc. Am. Bull. Mining and Metallurgical Society of America Bulletin. 

New York.

Mineral Industries. State College, Pa.

Mineralogist The Mineralogist. Portland, Oreg.

Mines Mag. Mines Magazine. Golden," Colo.

Miss. Geol. Survey Bull. Mississippi Geological Survey Bulletin. Jackson, 

Miss.

Mo. Bot. Garden Annals Missouri Botanical Garden Annals. Fulton, Mo.

Mo. Geol. Survey and Water Res. Inf. Circ.; Rpt. Inv. Missouri Geological 

Survey and Water Resources Information Circular; Report of Investigations. Rolla, Mo.

Mo. Univ., School of Mines and Metallurgy Bull., Tech. Ser. Missouri University, School of Mines and Metallurgy Bulletin, Technical Series. Rolla, 

Mo.

Mont. Bur. Mines and Geology Mem.; Misc. Contr. Montana Bureau of Mines 

and Geology Memoirs; Miscellaneous Contributions. Butte, Mont.

Natl. Acad. Sci. Biog. Mem.; Proc. National Academy of Sciences, Biographical Memoirs; Proceedings. Washington.

 Natl. Research Council, Div. Geol. and Geog.; Committee Rpts. National Research Council, Division of Geology and Geography; Committee Reports. 

Washington.

Natl. Speleol. Soc. Bull. National Speleological Society Bulletin. Washington.

Nat. History Natural History. New York.
12 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Naturaliste Canadien Le Naturaliste Canadien. Quebec City.

Nature Mag. Nature Magazine. Washington.

Nautilus The Nautilus. Philadelphia.

Nebr. Acad. Sci. Proc. Nebraska Academy of Sciences Proceedings. Lincoln, 

Ne.T.

Nebr. Univ. Studies Nebraska University Studies. Lincoln, Nebr.

Nev. State Engineer's Office, Water Res. Bull. Nevada State Engineer's Office, 

Water Resources Bulletin. Carson City, Nev.

Nev. Univ. Bull., Geology and Mining Ser. Nevada University Bulletin, Geology 

and Mining Series. Reno, Nev.

N. H. State Plan. Dev. Comm., Mineral Res. Survey New Hampshire State 

Planning and Development Commission, Mineral Resource Survey. Concord, N. H.

N. J. Dept. Conserv., Misc. Geol. Paper New Jersey Department of Conservation, Division of Forestry, Geology, Parks and Historic? Sites, Miscellaneous 

Geologic Paper. Trenton, N. J.

N. Mex, Univ. Pub. Geology; Meteoritics New Mexico University Publications 

in Geology; Meteoritics. Albuquerque, N. Mex.

N. Y. Acad. Sci. Annals ; Trans. New York Academy of Sciences Annals ; Transactions. New York.

N. Y. State Mus. Circ. New York State Museum Circular. Albany, N. Y.

N. Y. Water Power and Control Comm. Bull. New York Water Power and 

Control Commission Bulletin. Albany, N. Y.

N. 0. Dept. Conserv. Dev., Div. Mineral Res. Bull. North Carolina Department 

Of Conservation and .Development, Division of Mineral Resources Bulletin. 

Raleigh, N. C.

N, Dak. Acad. Sci. Proc. -North Dakota Academy of Science Proceedings. 

Grand Forks, N. Dak.

N. Dak. Geol. Survey Ground-water Studies North Dakota Geological Survey 

Ground-water Studies. Grand Forks, N. Dak.

Northwest Science, Cheney, Wash.

Nova Scotia Dept. Mines Ann. Rpt. Nova Scotia Department of Mines Annual

Report. Halifax, N. S. .

NOVa Scotian Inst. Sci. Proc. Nova Scotian Institute of Science Proceedings. 

Halifax, N. g.

owo Geoi. survey inf. Circ. Ohio Geological Survey Information Circular.

Columbus, Onto.

Ohio Jour. Sci. OMO Journal Of Science. Columbus, omo.

Ohio State Univ. Eng. Expt. sta. News Ohio State University EllginOQllDf El*

ceriment Station NeWS. ColUfflbUS, Ohio, 

Ohio Water Res. Ba. B»». Ohlo Wnte, RoSoUrces. Board Bulletin. CollimbuS,

Ohio.

Oil and Gas Jour. Oil and Gas Journal. Tulsa, Okla.

Okla. Acad. Sci. Pl'OC. OKlcillOIM Academy of Science Proceedings. Norman,

Ofcla. Okla. Geol. Survey Bull,; Oirc, j MU»«I-« ~p*. o«nboma GGO,osic^ gurvey

Bulletin; Circular; Mineral Keport. Norman, Okla.

Ontario Dept. Mines Ann. Rpt; InQllS. Mineral Circ. 5 i?renm. Rpt. Ontario 

^>oj,^^t .orat nf Mines Annual Report; Industrial Mineral Circular; Preliminary Report Toronto.

Oreg. Dept. Geology and Mineral Industries Bull.; G. M. I. Short Paper Offi

Department of Geology and Mineral Industries Bulletin; G. M. I. Short 

Paper. Portland, Oreg.
SERIALS 13

Pacific Discovery. San Francisco.

Pacific Science. Honolulu.

Palaeontographica Americana. Ithaca, N. Y.

Pa. Acad. Sci. Proc. Pennsylvania Academy of Science Proceedings. Harrisburg, Pa.

Pa. Dept. Int. Affairs Monthly Bull. Pennsylvania Department of Internal 

Affairs Monthly Bulletin. Harrisburg, Pa.

Pa. Geol. Survey, 4th ser., Bull.; Prog. Rpt. Pennsylvania Geological Survey, 

4th series, Bulletin; Progress Report. Harrisburg, Pa.

Pa. State Coll. Mineral Industries Expt. Sta. Bull.; Circ. Pennsylvania State 

College Mineral Industries Experiment Station Bulletin; Circular. State 

College, Pa.

Petrfileo Interamericano. Tulsa, Okla.

Petrtfleos Mexicanos. Mexico City.

Petroleum Engineer. Dallas, Texas.

Photogrammetric Engineering. Washington.

Plateau. Flagstaff, Ariz.

Pop. Astronomy Popular Astronomy. Northfield, Minn.

Postilla. New Haven, Conn.

Precarnbrian The Precambrian. Winnipeg, Manitoba.

Producers Monthly. Bradford, Pa.

Quebec Dept. Mines Geol. Rpt.; Prelim. Rpt. Quebec Department of Mines 

Geological Report; Preliminary Report. Quebec City.

Raw Materials Survey Resource Rpts. Raw Materials Survey Resource Reports. Portland, Oreg.

Rev. Soc. Hai'tienne Hist. G6og. G4ol. Revue de la Socie"te" Hai'tieune d'Histoire, 

de Geographic et de G6ologie. Port-au-Prince.

Rev. Soc. Malacol6gica Revista de la Sociedad Malacol6gica. Habana.

R. I. Port Indus. Dev. Comm., Geol. Bull.; Sci. Contr. Rhode Island Port and 

Industrial Development Commission, Geological Bulletin; Scientific Contribution. Providence, R. I.

Rochester Acad. Sci. Proc. Rochester Academy of Science Proceedings. Rochester, N. Y.

Rocks and Minerals. Peekskill, N. Y.

Royal Canadian Inst. Proc.; Trans. Royal Canadian Institute Proceedings; 

Transactions. Toronto.

Royal Ontario Mus. Paleontology Contr. Royal Ontario Museum of Paleontology Contributions. Toronto.

Royal Soc. Canada Proc.; Trans. Royal Society of Canada Proceedings; Transactions. Ottawa.

Science. Washington.

Sci. Am. Scientific American. New York.

Sci. Monthly Scientific Monthly. New York.

Seismol. Soc. Am. Bull. Seismological Society of America Bulletin. Berkeley, 

Calif.

Shore and Beach. Newark, N. J.

Sierra Club Bull. Sierra Club Bulletin. San Francisco.

Smithsonian Inst. Ann. Rpt.; Misc. Coll. Smithsouian Institution Annual Report; Miscellaneous Collections. Washington.

Soc. Cubana Historia Nat., Mem. Sociedad Cubana de Historia Natural, Memorias. Habana. 

980682° 52 2
14 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Soc. Cubana Ing., Rev. Sociedad Cubana de Ingenieros, Revista. Habana. 

Soc. Mex. Geog. Est., Bol. Sociedad Mexicana Geograffa y Estadlstica, Boletfn.

Mexico City. 

Soc. Mex. Historia Nat., Rev. Sociedad Mexicana de Historia Natural, Revista.

Mexico City.

Soil Science. Baltimore, Md. 

S. C. Research Plan, Dev. Bd. Bull. South Carolina Research, Planning and

Development Board Bulletin. Columbia, S. C. 

S. C. Univ. Pubs., Physical Sciences Bull. South Carolina University Publications, Physical Sciences Bulletin. Columbia, S. C. 

S. Dak. Geol. Survey Rpt. Inv. South Dakota Geological Survey Report of

Investigations. Vermillion, S. Dak. 

S. Calif. Acad. Sci. Bull. Southern California Academy of Sciences Bulletin.

Los Angeles.

State Geologists' Jour. State Geologists' Journal. 

Staten Island Inst. Arts Sci. Proc. Staten Island Institute of Arts and Sciences

Proceedings. Staten. Island, N. Y.

Tenn. Acad. Sci. Jour. Tennessee Academy of Science Journal. Nashville,

Tenn. 

Tenn. Dept. Conserv., Div. Geology, Ground-Water Inv. Tennessee Department

of Conservation, Division of Geology, Ground- Water Investigation. Nashville, Tenn.

Texas Jour. Sci. Texas Journal of Science. San Marcos, Texas. 

Texas Univ., Bur. Econ. Geology Pub. ; Rpt. Inv. Texas University, Bureau

of Economic Geology Publications; Report of Investigations. Austin,

Texas.

Torreia, Museo Poey, Univ. Habana Torreia, Museo Poey, Universidad de la

Habana. Habana. 

Torrey Bot. Club Bull. Torrey Botanical Club Bulletin. Menasha, Wis.

Tulsa Geol. Soc. Digest Tulsa Geological Society Digest. Tulsa, CMa.

U. S. Bur. Mines Bull. ; Inf. Circ. ; Rpt. Inv. ; Tech. Paper United States 

Bureau of Mines Bulletin ; Information Circular ; Report of Investigations ; Technical Paper. Washington.

u. s. Geol. Survey Bull.; Circ.; Coal Inv.; Geol. Quad. Map; Geophys. Inv;

Index to Geol. Mapping ; Mineral Inv. ; Oil and Gas Inv. ; Prof. Paper ; 

Water-Supply Paper United States Geological Survey Bulletin ; circular ; Coal investigations; Geologic Quadrangle Map>; Geophysical Investigations; Index to Geologic Mapping; Mineral Investigations; Oil-and

Gas investigations : Professional Paper ; Water-Supply Paper. Wash- ington.

U. S, ML MllS. BUlL; PrOC, Vniftfl ^ates National Museum Bulletin; Proceedings. \Vastington.

utah Acad. Sci. Proc. Utah Academy of Sciences, Arts and Letters Proceedings,

Ifrovo, \7tttii.

Utah Dept. Pub. Indus. Dev. Bull.; Circ. Utah Department ot Publicity and

Industrial Development Bulletin ; Circular. Salt Lake City, Utah. 

Utah State Eng., Tech. Pub. Utah State Engineer, Technical Publication. Salt LaKe City, utan,

Va. GeOl. SurYey Bull. YirgiOia Geological Survey Bulletin. CharlottesvUle,

Va. 

Va. Jour. Sci. Virginia Journal of Science. Blacksburg, Va.
SERIALS 15

Volcano Letter The Volcano Letter. Honolulu.

Vt. Geol. Survey Bull. Vermont Geological Survey Bulletin. Montpelier, 

Vermont.

Wagner Free Inst. Sci. Bull. Wagner Free Institute of Science of Philadelphia 

Bulletin. Philadelphia.

Washington Acad. Sci. Jour. Washington Academy of Sciences Journal. 

Washington.

Wash. Dept. Conserv. Dev., Div. Mines and Geology Bull.; Inf. Circ. Washington Department of Conservation and Development, Division of Mines 

and Geology Bulletin; Information Circular. Olympia, Wash.

Waterways Expt. Sta. Tech. Memo. Waterways Experiment Station Technical 

Memorandum. Vicksburg, Miss.

W. Va. Acad. Sci. Proc. West Virginia Academy of Sciences Proceedings. 

Morgantown, W. Va.

W. Va. Geol. Survey [Rpt] West Virginia Geological Survey [Reports]. 

Morgantown, W. Va.

Western Miner. Vancouver, B. C.

Wis. Acad. Sci. Trans. Wisconsin Academy of Science, Arts and Letters Transjactions. Madison, Wis.

World Oil. Houston, Texas.

World Petroleum. New York.

BIBLIOGRAPHY

[A double dagger (t) indicates material produced by means other than ordinary printing.]

Abbott, Maxine L.

1. A paleobotanical transfer method: Jour. Paleontology, v. 24, no. 5, p. 619- 

621, Sept. 1950. Describes a method for removing carbonized compressions from a rock matrix without loss of either outlines or cellular 

structures.

2. The upper Freeport No. 7 coal parting compression flora of the Appalachian 

Basin [abs.]: Am. Jour. Botany, v. 37, no. 8, p. 672, Oct. 1950.

Abernethy, Roy Franklin. See Dowel, J. J., 1, 2.

Abilene Geological Society.

1. Structure study group symposium; Symposium on relationship between 

deep and shallow structure in certain specific areas in west central 

Texas, with particular reference to origins of structure in each instance. 140 p. approx., illus., Abilene, Texas, 1949.

2. .Geological contributions, 1950. 95 p., illus., Abilene, Texas. 1950. A 

^(symposium of 24 papers mainly concerning the structure of oil fields in 

the Abilene area.' Each paper is listed under the author. Contributors 

are J. P. Byram, R. Y. Walker, N. D. FitzGerald, Ralston Brown, J. E. 

Russell, W. B. Rodan, H. S. Edwards, V. C. Perini, Jr., B. H. Martin, 

J. S. Bassett, H. L. Bonifield, R. B. Vickers, Jr., A. J. Kerr, S. L. Harris, 

A. E. Barnes, Jr., W. L. Day, R. L. McFall, D. C. Van Siclen, D. W. 

Graham, A. L. Jenke, W. K. Kerfoot, J. D. Tompkins, and Robert 

Wasselhoeft, Jr.

3. 1950 Field-, trip guidebook, Strawn and older rocks of Pennsylvanian and 

Mississippian system of Brown, San Saba, McCulloch, Mason, and 

Kimble Counties, Texas, November 2-4, 1950. 44 p., illus. incl. geol. 

map, Abilene, Texas, Abilene Geological Society, 1950. Contains road 

logs, cross sections, formation tables, and descriptions of the Carboniferous strata in the Llano region. Discussions by David E. Gee, L. E. 

Fitts, Jr., and Aureal T. Cross are included. The geologic map is reprinted from University of Texas Pub. 4329.

Adams, John Emery.

(and Frenzel, Hugh N.). Capitan barrier reef, Texas and New Mexico: Jour. 

Geology, v. 58, no. 4, p. 289-312, illus., July 1950. The Capitan reef, 

one of the best examples of a large barrier reef, is a structure of subsidence and the last of a series that surrounded the pontic basins of 

the southwest United States during Permian time. Sedimentation, depo'sitional environment, and reef structure are described.

Adams, Leason Heberling.

Annual report of the Director of-the Geophysical Laboratory: Carnegie Inst. 

Washington Yearb. no. 48, 1948-1949, p. 29-55, Dec. 9, 1949. A review 

of the current work of the laboratory in experimental petrology involving research on anhydrous silicates, silicates in the presence of water 

under pressure, the application of statistical methods to petrology, 

thermal properties of mineral substances, and volcanic products.

Adler, Hans H. See also Kerr, P. F., 5; Kulp, J. L., 1.

Infrared investigations of clay and related minerals, in Infrared spectra of 

reference clay minerals: Am. Petrol. Inst. Project 49, Clay Mineral 

Standards, Prelim. Rpt. 8, p. 1-72, illus., July 1950.

17
18 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Agnew, Alien Francis.

1. The Middle and Upper Ordovician strata of the Upper Mississippi Valley, 

a restudy [abs.] : Stanford Univ. Bull., Abstracts of Dissertations, 

1948-49, v. 24, p. 241-243, Nov. 30, 1949.

2. Detailed stratigraphy of Galena-Decorah-Platteville sequence in Upper Mississippi Valley [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1439, 

Dec. 1950.

Agnich, Fred Joseph.

(and Harvey, William P.). Primary seismic evidence of limestone reefs: 

World Oil, v. 131, no. 4, p. 83-84, 86, illus., Sept. 1950. The limitations 

of the secondary seismic evidence on reefs, obtained from differential 

compaction and velocity discontinuities in exploring for oil in: the 

Permian Basin, are indicated briefly. The interpretation of reflections 

of steep dips, unconformable with regional character, as primary evidence of reefs is discussed with illustration by seismograms. V. S.

Agron, Sam L.

1. Deformation in the Peach Bottom syncline : Am. Geophys. Union Trans., v. 

31, DO. 2, pt. 1, p- 262-266, illus., Apr. 1950. "Results of a detailed study 

of 'the deformation in the Peach Bottom syncline [in the Peters Creek 

schist of the Appalachian Piedmont of southeastern Pennsylvania and 

Maryland] are presented. Field observations of flow cleavage, fracture 

cleavage, lineations, and joints are discussed. Lineations parallel fold 

axes and mostly plunge northeast, with some plunging southeast and 

a few southwest at a moderate to steep angle."

2. Structure and petrology of the Peach Bottom slate, Pennsylvania and 

Maryland, and its environment: Geol. Soc. Am. Bull., v. 61, no. 11, p. 

- - 1265-1306, illus. incl. geol. map, Nov. 1950. A detailed field and laboratory study of the structural petrology of the Peach Bottom slate, in 

the Peach Bottom syncline of southeastern Pennsylvania and Maryland. 

Notes on stratigraphic relations, age of the slate, and metamorphism are 

included. A petrofabric analysis is made.

Aguayo, Carlos Guillermo.

Observaciones sobre algunos mamiferos Cubanos extinguidos : Bol. Historia 

Nat., v. 1, no. 3, p. 121-134 (t), Nov. 1950. An account of extinct Cuban 

mammals edentates, insectivores, rodents, bats, and dogs.

Aguilar, Manuel Rodriguez. See also Barnetche, A,

Log problemas de la exploraci6n en Mexico ; Asoc. Mex. Geol. Petrol. Bol., V. 2, 

no. 4, p. 231-243, Apr. 1950 : Petroleos Mexicanos, no. 79, p. 85-99, Mar. 

1950. Reviews briefly the geological and personnel problems of oil 

exploration in MexiCO Within the Gulf Coast basins of Burgos, Tampico,

veracruz, Salina del Istmd, Tabasco, and lucatan. V. S.

Ah r ens, Louis H.

1 What tO eXpeCt from a Standard gpectrocnemical analysis of common silicate

' rock types t Am. Jour. Set, V. 248, DO, 2, p, H2-H5, Feb. 1950. The

minor Constituents likely to be detected and determined by the analySlS

are discussed and tabulated on the basis of quantitative results for a

granite

. 

2 (8D(1 GOfflnKlC} LOrralne G.). Age Ol extremely ancient pegmati

southeastern Manitoba: Nature (London), V. 166, no, 4212, p,

22, 19DO. Reports determinations of the age of a specimen of lepidolite

by analysis of rubidium and strontium, Tbe age is calculated at 2400

(238O) X10e years. 3. (and LieDenDerg, w. R.)« Tln and * ^ ^a, as ,1^ ^^ speotro.

chemically: Am. Mineralogist, v. 35, DOS. 7-8, p. OTHTo, JUly~Aug, 

1950. "Spectrochemicai analysis has shown that small quantities of 

tin are invariably detected in mica ; tflG Concentration of gnOi, varies 

from less than o.ooos percent to nearly 0.5 percent. Very small 

tities of indium (maximum 0.0000 percent mso3) coulcl be ae 

in some mica specimens. ... An outline is given for 

procedure."
BIBLIOGRAPHY . 19

Ahrens, Louis H. Continued

4. Report to Committee on measurement of geologic time: Natl. Research 

Council, Div. Geology and Geography, Rpt. of the Committee on the 

measurement of geologic time, 1949-1950, Exhibit B, p. 29-36 ($), Nov. 

1950. A progress report on developments of the strontium and rubidium 

methods for the measurement of geologic time.

5. (and Gorflnkle, Lorraine G.). The abundance of several relatively rare 

elements in igneous rocks of North America: Science, v. 112, no. 2915, 

p. 565, illus., Nov. 10, 1950. A. preliminary note on the investigation, 

by precision spectrochemical methods, of the occurrence of 17 rare 

elements in 150 igneous rock specimens. The purposes and methods 

of the investigation are discussed.

6. (and Whiting, F. H.). Use of biotite for geological age measurements by 

the strontium method [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1439, Dec. 1950.

Ahrens, Thomas P.

Field permeability tests used by the Bureau of Reclamation [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1549, Dec. 1950. -

Akin, Philmore Donald. See Dennis, P. E., 1, 2, 3.

Albanese, John P.

A peridotite body in the Laramie Mountains, Wyoming: Rocks and Minerals, 

v. 25, nos. 1-2, p. 52-54, 71, Jan.-Feb. 1950. The peridotite occurs 

within the core of a closed syncline in an -area of pre-Cambrian gneisses 

and hornblende schists, near the town of Wheatland. The origin is 

discussed. V. S.

Albritton, Claude Carroll, Jr.

(and Smith, Joe Fred, Jr.). Evidence for aridity in western Texas during 

early Cretaceous [abs.]: Geol. Soc. Am. Bull.,' v. 61, no. 12, pt. 2, p. 1440, 

Dec. 1950.

Alcock, Edward Day.

Prospecting for reefs with the seismograph: World Oil, v. 130, no. 5, p. 74, 

76, 78, 80, 91, illus., Apr. 1950. Although reefs do not reflect seismic 

energy, the draping effect of overlying formations, caused by differential 

. compaction, can be detected with the seismograph, as well as a velocity 

differential between reef material and surrounding sediments, where 

it exists. . V. S.

Alcock, Frederick James.

1. Ground water in Canada; a summary of the ground-water conditions and 

resources of the country, the utilization of the ground water, and the 

scientific investigation and literature relating to the subject: Assoc. 

Internat. Hydrol. ScL, Reunion, Washington, 1939, C. R. tome 2, Cornm. 

des Eaux Souterraines, Enquete, Rapport 12, 6 p. [1948?].

2. Memorial to Everend Lester Bruce [1884-1949]: Geol. Soc. Am. Proc. 1949, 

p. 121-125, port., June 1950.

Alencaster-Ibarra, Gloria.

1. Nota sobre Dentalidos del Terciario de Mexico: Asoc. Mex. GeOl. Petrol. 

Bol., v. 2, no. 3, p. 221-226, illus., Mar. 1950. Describes and figures 

two specimens of DentaUum: DentaUum rimosum from Upper Miocene 

beds in Tehuantepec, and DentaUum ixhuatlanensis, n. sp., from the 

Miocene of Veracruz.

2. Moluscos del Mioceno de la regi6n de Ixhuatlan-Moloacan, Veracruz, 

Mexico: Asoc. Mex. Ge61. Petrol. Bol., v. 2, no. 9, p. 557-583, illus., 

Sept. 1950. Describes and figures two pelecypods, one scaphopod, and 

twenty-five gastropods from the Miocene strata of the IxhuatlanMoloacan area of the Tehuantepec Isthmus, Mexico.
20 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Alexander, Walter Herbert, Jr.

Ground-water resources of Liberty County, Texas : TJ. S. Geol. Survey, WaterSupply Paper 1079-A, 61 p., illus., 1950. Ground water occurs mostly 

in the Pleistocene Lissie formation overlying Pliocene Willis sand, 

undistinguishable here, and in turn overlain by Pleistocene Beaumont 

clay and Recent alluvial deposits, which also contain water. The 

formations are described briefly. . V. S.

Allan, John Donald.

1. The Lynn Lake nickel area, Manitoba: Canadian Min. Met. Bull. no. 461, 

p. 509-514, illus. incl. geol. sk. map, Sept. 1950; Canadian Inst. Mining 

and Metallurgy Trans., v. 53, p. 343-348. 1950. The rocks of the area 

are pre-Cambrian volcanics, sediments, and intrusives. The mineralization consists of pyrrhotite, pyrite, pentlandite, and chalcopyrite occurring in both disseminated and massive form. The sequence of geologic 

events is outlined.

2. (and Kerr, Lillian B. ) . Oil and gas exploration in Manitoba : Precambrian, 

v. 23, no. 10, p. 8-11, illus., Oct. 1950. A revdew of the history, present 

developments, and future possibilities of exploration for oil and gas 

in the province of Manitoba, Canada. The columnar section obtained 

from the Gordon White no. 1 well, drilled to 5160 feet, near Lyleton in 

the southwestern part of the province, is shown.

Allan, Thomas H. See Kaufinann, G. F. 

Alien, Arthur Thomas, Jr. See Lester, J. G., 2. 

Alien, C. F. See Poulter, T. C.', 1.

Alien, Rhesa McCoy, Jr.

1. Structural control of some gold-base metal veins in eastern Grant County, 

Oregon [abs.] : Econ. Geology, v. 45, no. 4, p. 387, June-July 1950.

2. Mineralization in the Volcano district, Elmore County, Idaho [abs.] : Geol. 

Soc. Ain. Bull., v. 61, no. 12, pt. 2, p. 1440, Dec. 1950.

Alien, Robert B.

Fracture systems in the pitchblende deposits of the Beaverlodge Lake area, 

Saskatchewan: Canadian Min. Met. Bull. no. 460, p. 436-437, Aug. 

1950: Canadian Inst. Mining and Metallurgy Trans., v. 53, p. 287-288.

1950. The study of radioactive occurrences in veins or fractures in tne

vicinity of Beaverlodge, Martin and Black lakes, in northern Saskatchewan, indicates that such occurrences are related to two sets of shears,

an older set striking northwest and a younger set striking northeast. 

Alien, Victor Thomas.

1. The leucoxene problem [abs.] : Am. Mineralogist, v. 35, nos. 3-4, p. 277,

MH.T-. -A.s»r. 1O5O.

2. Fetrograpny of the Wilcox formation of Arkansas [abs.] : Geol. Soc. Am.

Bull., v. 61, no. 12, pt. 2, p. 144-1441, Dec. 1950.

Alien, William Burrows. See also Quinn, A. W., 2.

(and Blackball, John A..). Ground-water resources of Bristol, Warren and 

Barrington, Bristol County, Rhode Island : B. I. Port Indus. r>ev. Comm.,

Sci. Contr. 3, 14 p. (t), illus. incl. geol. map, 1950. The glacial geology

is described and accompanied by a map. Well records and chemical

 analyses are included. The study showed tnat only a small supply of

ground water is available in Bristol and Warren, and a moderate 

amount in Barrington.

Ailing, Harold Lattimore.

Initial shape and roundness of sedimentary rock mineral particles of sand

size : Jour. Sed. Petrology, v. 20, no. 3, p. 133-147, illus., Sept. 1950. - .

roundness of crushed and screened fragments of nine minerals of sand 

size commonly found in sedimentary rocks, before abrasion, show that 

each mineral has its own characteristics and that they are not the 

same. The minerals used are calcite, andalusite, quartz, garnet, zircon, 

tourmaline, microcline, sillimanite, and hornblende.
BIBLIOGRAPHY 21

Allison, Ira Shimmin.

Ages of pluvial lake shore lines of south-central Oregon [aba.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1519, Dec. 1950.

Allsman, Paul Trekell. See Heini, G. W.; King, W. H. 

Almond, Hy. See Levering, T. S., 4.

Alvarez, Manuel, Jr.

1. Notas sobre el Paleozoico inexieauo; Asoc. Mex. Ge61. Petrol. Bol., v. 1, 

no. 1, p. 47-56, illus., Nov. 1949. Outcrops of Paleozoic strata in Mexico 

are briefly described. New data on the Middle Cambrian and Permian 

are given. V. S.

2. Futuras provincias petroleras de Mexico: PetrCleos Mexicanos, no. 81, p. 

72-93, illus., May 1950; abs., Petr61eo Interamericano, v. 8, no. 5, p. 

24-25, May 1950. Brief descriptions of the stratigraphy of seven potential petroleum-producing areas in Mexico.

8. Sintesis geolfigica de la Cuenca Salina del Istmo de Tehuantepec: Asoc. 

Mex. Ge61. Petrol. Bol., v. 2, no. 7, p. 445-452, July 1950. Describes 

briefly the stratigraphy and structure of the Salina Basin of the 

Isthmus of Tehuautepec, Mexico. A columnar section of the Jurassic, 

Cretaceous, Eocene, Oligocene, Miocene, and Pliocene formations is 

given.

Alvarez A., Javier.

Estudio estratigrafico del pozo Comalcalco num. 2, en Tabasco, Mexico: Asoc. 

Mex. Ge61. Petrol. Bol. v. 2, no. 8, p. 525-531, Aug. 1950. The Comalcalco 

no. 2 well was drilled to a depth of 3000 meters. The formations encountered are described, and the Foraminifera are listed. The well is 

located in the town of Comalcalco, Tabasco, Mexico.

American Association of Petroleum Geologists.

Geology. Boy Scouts of America, Merit Badge Series. 68 p., illus., 1950. Describes the more common geologic features, geologic processes, rocks, 

minerals, and fossils, and gives a brief outline of the history of the 

earth. A section is devoted to the work of geologists and its value.

American Gas Association.

Estimate of United States natural-gas reserves, in Fanning, L. M., ed., Our oil 

resources, 2d ed., p. 168-175, 1950. As of December 31, 1948, the total 

proved reserves of natural gas were estimated at 173,869,340,000 thousands of cubic feet.

American Geological Institute.

1. The supply and demand for geologists, 1949-1950: Am. Geol. Inst. Rpt, 

6 p. (I), illus. [1950]. A report compiled by the Committee on Geological Personnel of the American Geological Institute giving information 

on the number of students in the United States, the membership of 

professional societies, and the various demands for geologists. Several 

charts and tables summarize the statistical data.

2. Summer field courses in geology, 1950: Am. Geol. Inst. Rpt. no. 1,101 p. ($), 

Apr. 1950. Describes the summer field courses offered by 79 colleges 

and universities.

3. Non-industrial research in the geological sciences, 1950: Ani. Geol. Inst. Rpt. 

no. 3, 80. p. (t), June 1950. A bibliography'of research projects and 

Investigations now in progress, arranged by areas and subjects. Indexes of the organizations reporting and of the investigators are 

included.

American Petroleum Institute.

Estimate of United States oil reserves and natural-gas liquids reserve, in. 

Fanning, L. M., ed., Our oil resources, 2d ed., p. 153-167, 1950. Proved 

reserves of crude oil, as of December 31, 1948, were 23,280,444,000 barrels, and of natural-gas liquids were 3,540,783,000 barrels.
22 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Ames, John A.

Northern Appalachian salt : Min. Eng., v. 187, no. 5, p. 557-559, . illus., May 

1950. The distribution, character, and industrial potentialities of rock 

salt in New York, Pennsylvania, Ohio, and West Virginia are briefly 

discussed.

Anderson, Alfred Leonard.

Geology and ore deposits of the Hailey-Bellevue mineral belt, in Detailed 

geology of certain areas in the Mineral Hill and Warm Springs mining 

districts, Blaine County, Idaho : Idaho Bur. Mines and Geology Pamph. 

90, p. 1-37, illus. incl. geol. maps, Oct. 1950. The stratigraphy, structure, and mineralization of the Hailey-Bellevue area in southern Idaho 

are described. The ore consists of lead-silver lodes and pyritic gold 

veins in fracture and fissure zones, chiefly replacement deposits but 

also showing fissure filling. The mines and prospects are described 

individually, and are accompanied by several geologic maps.

Anderson, B. W.

The absorption spectra of emerald and alexandrite : Gems and Gemology, v. 6, 

no. 9, p. 263-266, 291, illus., Spring 1950.

Anderson, Charles Alfred.

1. Arizona zinc and lead deposits ; Lead-zinc deposits, Bagdad area, Yavapai 

County, Arizona : Ariz. Bur. Mines Bull. 156, Geol. Ser. 18, p. 122-138, 

illus. incl. geol. maps, Apr. 1950. The rocks and mineralization are 

described briefly. The Hillside mine, Copper King mine, and Old Dick 

mine are described in some detail, and notes are included on several 

smaller mines.

2. The 1940 E. W. Scripps cruise to the Gulf of California, Part 1, Geology 

of islands and neighboring land areas : Geol. Soc. Am. Mem. 43, vii, 

53 p., illus. incl. geol. maps, Aug. 10, 1950. Discusses the Tertiary 

stratigraphy, structure, and geologic history of the islands in the Gulf 

of California, Lower California, and a part of Sonora, Mexico. A 

geologic map of the area is given, together with several geologic sketch 

maps and cross sections of individual islands.

3. Alteration and metallization in the Bagdad porphyry copper deposit, Arizona : ECOD. Geology, v. 45, no. 7, p. 609-628, illus., Nov. 1950. Hypogene 

alteration and mineralization in the Qliartz monzonite host-rock consisted cmeny of arbitration of plagioclase, increase in quartz and 

orthoclase, recrystaiiization of nommenae ana book-biotite 'to leafv

bJOtite and introduction Of pyrite and Chalcopyrite. Supergene enrichment resulted in the formation Of a ChalCQCite blanket in late Pliocene or 

early Pleistocene time.

Irvin J. imKZen. ID. r,., Q 

Anderson, JudsOtl LoWfill. 866 ClOOS, E., 2.

Anderson, Norman R.

Multiple ^elation in the white River Valley near EnufflClaW, Washington 

[al)S.] Geol. Soc. Am. Bun., v. 6i, no. 12, pt. 2, p. 1519-1520, Dec. 1950.

Andrews, Henry Nathaniel, Jr. See Mamay, S. H., 2.

Antevs, Ernst ValdcmaF.

1. The Quaternary of North America, in. Regionale Geologic der Erdg BHfld 1, 

Pt. 3b, 21 P., LeipZlg, Germany, Akad. Verlag Gesellschalt, 1941.' A summary of continental glaciation, particularly Of Wisconsin time, with 

notes On related features.

2. Geology of the Clovis sites, in Ancient man in North America, by H. M.

^^nTTnn^it^lmif u rmm£F Sa£ral Historv' Popular series no, 4,

P. 185-190, lllllS., 1m ironies or tv-" r^^ at several localities

near Clovis, New Mexico, are given, and the ctepOSlUOIldl prw =- ~ 

discussed. Age determinations are made, and it is concluded that artifacts in. the. Clovis formation are between 10,000 and 13,000 years old.
BIBLIOGRAPHY 23

Applin, Esther English Richards.

1. (and Loeblich, Alfred Richard, Jr., and Tappan, Helen Nina). Two new 

Lower Cretaceous lituolid Foraminifera: Washington Acad. Sci. Jour., 

v. 40, no. 3, p. 75-79, illus., Mar. 15, 1950. Defines two new genera, 

Stomatostoecha and Phenacophragma. New species from the Walnut 

clay and the Glen Rose limestone, of Texas, are described and figured.

2. (and Jordan, Louise). "Lockhartia" cushvnani Applin and Jordan and 

notes on two previously described Foraminifera from Tertiary rocks 

in Florida: Jour. Paleontology, v. 24, no. 4, p. 474-178, illus., July 1950. 

Discusses nomenclatural changes in the names of species originally 

described by the authors in 1945. ^The internal characters of "Loc/chartia" cushmani are now presented in full.

Applin, Paul Livingston.

Mesozoic rocks in Florida and Georgia [abs.] : Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1441, Dec. 1950.

Archambault, Maurice. See Osborne, F. F., 2.

Archie, Gustave Erdman.

Introduction to petrophysics of reservoir rocks: Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 5, p. 943-961, illus., May 1950. " 'Petrophysics' is suggested as 

the term pertaining to the physics of particular rock types, whereas 

geophysics pertains to the physics of larger rock systems composing 

the earth'. . . porosity, permeability, capillary pressure, hydrocarbon 

saturation, fluid properties, electrical resistivity, self- or naturalpotential, and radioactivity of different types of rocks . . . have been 

investigated separately and in relation, one to another, particularly 

as they pertain to the detection and evaluation of hydrocarbon-bearing 

layers." These findings are discussed. V. S.

Arden, Daniel Douglas, Jr.

Statistical methods applied to species determination of fossil brachiopods: 

Ga. Geol. Survey Bull. 56, p. 106-111, illus., 1950. Describes the use of 

the ratio-of length to width of shell in identifying species of brachiopods 

from the Chester limestones in the vicinity of Ringgold, Georgia. Data 

are given for one species of Cleiothyridina and two species of Composite,.

Arellano, Alberto R. V.

1. (and Miiller, Florence). La Cueva Encantada de Chimalacatlan, Morelos: 

Soc. Mex. Geog. Est. Bol. v. 66, no. 3, p. 481-491, illus., Nov.-Dec. 1948. 

Brief description of Encantada cave, near Chimalacatlan, Morelos, 

south of Mexico City, its origin, and archeology.

2. The Becerra formation (latest Pleistocene) of central Mexico: Internat. 

Geol. Cong., 18th, Great Britain, Rpt. pt. 11, p. 55-62, 1950; abs., Volume 

of titles and abstracts, p. 74, 1948. Describes the occurrence of the 

Becerra fluvial and lacustrine deposits at several localities in central 

Mexico, and discusses the age and correlation. The importance of the 

evidence from fossil soils for correlation in Mexico is emphasized.

Argall, George 0., Jr.

Industrial minerals of Colorado: Colo. School of Mines Quart., v. 45, no. 4B, 

p. 1-24, illus., Oct. 1950. Brief notes on the exploitation of industrial 

mineral deposits, including beryl, feldspar, limestone, and others.

Arkell, William Joscelyn.

A classification of the Jurassic ammonites: Jour. Paleontology, v. 24, no. 3, 

p. 354-364, illus., May 1950. The taxonomic and nomenclatural problems involved in a classification are considered, and a classification 

is proposed.

Arkle, Thomas, Jr.

A preliminary report of the geol'ogy of scenic Switzerland Township, Monroe 

County, Ohio: Compass, v. 27, no. 2, p. 29-34, illus., Jan. 1950. Very 

brief notes are given on the general geology of the area, in which strata 

of the Dunkard and Monongahela series of Permian and Pennsylvanian 

age crop out. V. S.
Armstrong, Frank Clarkson. See Clabaugh, S. E., 1.

Armstrong, Harold K.

(and Le Conte, Joseph). Recent development in Tejon Ranch area [Calif.] 

[abs.] : Am. Assoc. Petrol. Geol. Bull., v. 34, no. 12, p. 2377, Dec. 1950.

Armstrong, Herbert Stoker.

Geology of Echo Township: Ontario Dept. Mines Ann. Rpt, v. 59, pt. 5, 1950, 

,40 p., illus. incl. geol. maps, 1951. Echo Township, in western Ontario, is 

an area of pre-Cambrian volcanics, sediments, and intrusives. The 

geologic history of the area is described and the petrologic relationships of the rocks are discussed. Gold occurs in quartz veins and alteration zones. Several properties are described briefly. The colored 

geologic map of the area is on a scale of I inch to 1000 feet; that of 

the Newlund mine is on a scale of 1 inch to 500 feet.

Armstrong, John Edward.

Preliminary map, Vancouver North (east half), British Columbia: Canada 

Geol. Survey Paper 50-26, 1950. The area is one of Mesozoic and 

Cenozoic volcanics, intrusives, and sediments. Descriptive notes are 

given with the geologic map (scale, 1 inch to % mile).

Arnold, Chester Arthur.

Megaspores fr,om the Michigan coal basin: Mich. Univ. Mus. Paleontology 

Contr., v. 8, no. 5, p.- 59-111, illus., June 2, 1950. Contains systematic 

descriptions of 15 species of spores,.six of which are new, from the coals 

and shales of the Saginaw and Grand River groups of Pennsylvanian 

age. Sections on the classification and terminology of spores and 

on the technique of examination are included.

Arnold, Emery. See Barnes, F. C.

Arnott, Ronald J.

X-ray diffraction data on some radioactive oxide minerals: Am. Mineralogist, 

v. 35, nos. 5-6, p. 386-400, illus., May-June 1950. X-ray diffraction data 

for members of three series, uraninite-thorianite, pyrochlore-microlite, 

and euxenite-polycrase, are given. The cell dimensions, possible spacegroups, and probable cell content of euxenite are calculated from the

powder data.

Ash, S. H.

Buried valley of the Susquehanna River, anthracite region of Pennsylvania: 

U. S. Bill'. Mines Bull. 494, 27 p., illus. incl. geol. sketch map, 1950. A

Study Is made of the extent and physical eonclitions of the valley-fill

d6POSitS in the YiCinity Of Wilkes-Barre, northeastern Pennsylvania, 

arid their bearing on the coal-mine workings.

Ashley, George Hall, 1866-1951. 

Bituminous coal reserves of Pennsylvania, in Symposium on mineral resources

Of Pennsylvania: Pa. Acad. Sci. Proc., v. 24, p. 198-202, 1950. The

estimates previously made are summarized, and new factors are discussed. The most recent estimate (1943) shows 28 billion tons of 

recoverable bituminous coal, and a mining life of about 24O years.

Asociacion Mexicana Geologos Petroleros.

Caita geOlOglCa fle la Republica mexicana, Reynosa hoja. Scale 1: 500,000 or

i inch to about 8 miles. [1950?]. The Reynosa area map shows Cetaceous, Tertiary, and Quaternary strata.

Atherton, Elwood. See Workman, L. E., 2. 

Auger, Paul Emile.

li Preliminary report on Belleterre area (Sheet no. 4), Ouillet Township 

Quebec Dept. Mines, Mineral Deposits Br., PH8M RjL 240, I P, (J),

geol. map, 1950. Brief notes on the pre-Cambrian volcanics and intrusives of a part of the Belleterre area in western Quebec. Notes on the 

gold mineralization are included.
BIBLIOGRAPHY 25

Auger, Paul Emile Continued

2. Structure of the Quebec City "formations" [abs.]: Royal Soc. Canada 

Proc., 3d ser., v. 44, p. 226,1950.

Averitt, Paul.

1. Status of coal resources surveys: Min. Gong. Jour., v. 36, no. 2, p. 86-88, 

illus., Feb. 1950. Current surveys of coal resources in the United States 

are reviewed, noting the trend toward detailed mapping of coal beds 

and estimation of reserves. State investigations and special studies 

are briefly described. V. S.

2. (and Berryhill, Louise Russell). Coal resources of the United States; a 

progress report, November 1,1950 : U. S. Geol. Survey Circ. 94, 33 p. (t), 

illus., Dec. 1950. Continued work has resulted in a re-appraisal of 

coal reserves, with more detailed estimates of the reserves of Michigan, 

Montana, New Mexico, North Carolina, and Wyoming. As of January 

1, 1950, total reserves are placed at 2,425,566 million tons, half of 

which is regarded as ultimately recoverable.

Axelrod, Daniel I.

1. Classification of the Madro-Tertiary flora: Carnegie Inst. Washington Pub. 

590, Contr. Paleontology, p. 1-22, Dec. 27, 1950. Defines and discusses 

the components, elements, and complexes of the Madro-Tertiary flora, 

characteristic of middle and late Tertiary time in southwestern North 

America.

2. A Sonorna florule from Napa, California: Carnegie Inst. Washington Pub. 

590, Contr. Paleontology, p. 23-71, illus., Dec. 27, 1950. The Napa area 

is located north of San Francisco Bay. The florule consists of 24 fossil 

plants, 3 conifers and 21 angiosperms, of which 23 have been previously 

described. In the descriptions of the species, one new name is made 

(Salix), two new combinations are made (in Cercocarpus and Holodiscus), and one new species (Arctostaphylos fergusoni) is described. 

The age of the florule is Late Pliocene.

3. Further studies of the Mount Eden flora, southern California: Carnegie 

Inst. Washington Pub. 590, Contr. Paleontology, p. 73-117, illus., Dec. 

27, 1950. The Mount Eden formation, a Middle Pliocene continental 

deposit exposed in the San Jacinto Mts. of southern California, was 

reexaminecl for new fossil flora material. Seventeen additional species 

were collected and are described. In addition, nomenclatural changes 

have been made for some previously described species.

4. The Anaverde flora of southern California: Carnegie Inst. Washington Pub. 

590, Contr. Paleontology, p. 119-158, illus., Dec. 27, 1950. A new fossil 

flora of Pliocene age has been found in the Anaverde formation near 

Palmdale, in the desert region of southeastern California. The 

Anaverde formation is briefly described and a measured section given. 

The -flora consists of 21 species distributed among 17 genera and 12 

families. Peraphyllum mohavensis and an unnamed species are described as new, and two new names are assigned.

5. The Piru Gorge flora of southern California: Carnegie Inst. Washington 

Pub. 590, Contr. Paleontology, p. 159-214, illus., Dec. 27, 1950. A fossil 

flora was recently discovered in the Piru Gorge sandstone of the Ridge 

Basin group (Pliocene) in the Piru Creek area of southern California. 

The stratigraphy is discussed, a measured section given, and new 

names proposed. The composition, age, and physical conditions of 

the flora, which consists of 23 previously recorded species, are described.

6. Evolution of desert vegetation in western North America: Carnegie Inst. 

Washington Pub. 590, Contr. Paloentology, p. 215-306, illus., Dec. 27, 

1950. The age and derivation of modern desert environments are discussed, and the thesis is proposed that desert vegetation of the present 

time developed during the Tertiary period by the gradual adaptation 

of plants to a slowly expanding dry climate. The features of the development are described in detail and shown diagrammatically.

7. Appendix; systematic revisions of fossil plants: Carnegie Inst. Washington 

Pub. 590, Oontr. Paleontology, p. 307-311, Dec. 27, 1950. A list of the 

nomenclatural changes that have been made in connection with descriptions of the Sonoma, Mount Eden, Anaverde, and Piru Gorge floras 

in papers contained in Carnegie Inst. Washington Pub. 590 (see Axelrod 

2,3,4,5).
26 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Axelrod, Joseph Meyer. See Fahey, J. J., 2 ; Stadnichenko, T.

Ayres, Eugene.

Our supplemental petroleum reserves, in Fanning, L. M., ed., Our oil resources, 

2d ed., p. 203-264, illus., 1950. Notes on the geologic occurrence, availability, and yield of petroleum from coal, oil shale, tar sands, natural 

gas, and agricultural materials.

Bacon, Charles Sumner, Jr.

Geology of the. Cleveland region ; summary [abs.] : Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1561, Dec. 1950.

Bader, Henri.

The significance of air bubbles in glacier ice: Jour. Glaciology, v. 1, no. 8, 

p. 443-451, illus., Oct. 1950. A hypothesis is proposed by which an 

analysis of the relation of air bubbles and associated water in glacial 

ice is used to determine the maximum depth from which the ice has 

emerged. The apparatus and procedure are described. The experimental work was carried out on ice from the foot of the Malaspina 

Piedmont Glacier in Alaska.

Bagley, C. T.

Subsurface study of glacial deposits at .Cleveland, Ohio [abs.] : Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1561-1562, Dec. 1950.

Bailey, Edgar Herbert.

- (and MyerSj W. Bradley). Quicksilver and antimony deposits of the Stay ton 

district, California: Calif. Dept. Nat. Res. Div. Mines Bull. 147, p. 

37-60, illus. inch geol. maps, Oct. 1949. The occurrence, origin, and 

mineralogy of the mercury and antimony ores of the Stayton district, 

in the northwestern part of the Quien Sabe quadrangle, are described. 

Stibnite veins, occurring mainly in basalt along faults, contain ore 

averaging 1.5 percent Sb. The cinnabar ore occurs in fractures and 

averages about 0.5 percent Hg. There are reserves of more than 1,000 

flasks.

Bailey, Leslie F.

The development and use of nomographs in epicenter location [abs.] : Earthquake Notes, V. 21, nos. 1-2, p. 13, Mar.-June 1950.

Baillie, Andrew D.

Devonian - geology of Lake Manitoba-Lake Winnipegosis area, Manitoba: 

Manitoba Dept. Mines and Nat. Res., Mines Br., Pub. 49-2, 72 p., illus. 

inci. geoi. map, 1950. Describes in detail the Devonian strata (Elm 

Point, Winnipegosan, and Manitoban formations) that. outcrop in a 

northwest-trending belt in southern Manitoba. Sections, faunal lists, 

and correlations within the area and. with northern Canadian areas

are included.

Bailly, Rene J.

1. Prismatic Cleavage Of molybdenite ; Acta Crystallographica, v. 3, pt. 6, p. 477, 

iiius., Nov. 1950. In parallel infrared light, (0001) sections of molybdenite show hexagonal cracks which are explained as prismatic vertical

cleavage, 2. (and Hoike, Kenneth A.). Microscope and refractometer for infra-red

light [abs.] : Am. Mineralogist, v. 35, nos. 3-4, p. 277-278, Mar .-Apr. 

1950.

George "William.

1. Geology of the fissionable materials: Econ. Geology, v, ao, no. *, p. 210-020,

illus., June-July 1950. Discussion by C. L. Sagui, V. 46, no. 1, P. 86,

Jan.-Feb. 1951. The geology of uranium ana tnorium is aiscuesed

flcoyrding to types of occurrence, mineralogy, characteristic distribution

in relation to the broader geologic flWflTO, flJJfl |W]*it; ^tr" - 

tion. Deposits are classified under primary, sedimentary, and oxidized 

types. The resources of both producing and potential producing 

countries are described.
BIBLIOGRAPHY 27

Bain, George William Continued

2. "Mineralizer" localization in the Treasure Mountain granite, Colorado 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1441-1442, Dec. 1950.

Baird, David M.

Fogo Island map-area, Newfoundland (report and map) : Canada Geol. Survey 

Paper 50-22, 56 p. (t), geol. map, 1950. Discusses the physiography, 

glaciation, stratigraphy, and petrology of Fogo Island and nearby islands 

off the north coast of Newfoundland. The rocks are Ordovician and 

Silurian intercalated sediments and volcanics, and intrusives.

Baird, Donald.

Revision of the Pennsylvania and Permian footprints Limnopus, Allopus, and 

Baropus [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1442, Dec. 

1950.

Baker, Charles Laurence.

Role of bentonite in Great Plains and Rockies: Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 9, p. 1897-1899, Sept. 1950. Describes briefly occurrences and 

characteristics of bentonite in the Great Plains and Rocky Mountain 

regions. V. S.

Baker, Roger Crane. See Hewitt, F. A.; Klein, H.

Baldwin, Ewart Merlin. See also Suavely, P. D., Jr.

Summary of the structure and geomorphology of the Columbia River basalt: 

Northwest Sci., v. 24, no. 2, p. 59-64, May 1950. A review of present 

information and pertinent problems concerning compressional folds and 

faults, regional warping, and geomorphology of the Columbia River 

basalt area in Oregon, Washington, and Idaho.

Baldwin, Thomas Armet.

San Ardo a stratigraphic analysis of a California oil field: Am. Assoc. Petrol. 

Geol. Bull., v. 34, no. 10, p. 1981-1989, illus., Oct. 1950. The San Ardo 

oil field in the Salinas Valley, California, is a stratigraphic trap in 

the upper Miocene Lombard! sand. The oil accumulated in Pliocene 

time, and synclinal warping occurred in the early Pleistocene. The 

stratigraphy is discussed; three Pliocene units are considered as equivalent facies and termed the "San Ardo group."

Ball, Sydney Hobart, 1877-1949.

A Roman book on precious stones. 338 p., illus. Gemological Institute of 

America, 541 South Alexandria, Los Angeles 5, California. 1950. The 

book is in three sections: (1) Introductory chapters dealing with gems 

and jewelry in the time of Pliny (23-79 A.D.) ; (2) a modernized version 

of Philemon Holland's translation of Pliny's 37th Book of the Natural 

History of the World, and two chapters from the 36th Book; and (3) 

notes on section (2).

Balster, C. A. See Thomas, L. A., 2.

Baiter, B. M.

Electronics applied to oil exploration: World Oil, v. 131, no. 1, p. 72, 77, illus., 

July 1, 1950. An electronic field is now produced in the ground by 

truck-mounted equipment, and its distortion by the insulating property 

of hydrocarbons is measured in "voltrons," mapped, and interpreted 

. to estimate local oil productivity. The field procedure, test surveys in 

Texas, and limitations of the method are discussed. V. S.

Bandy, Orville Lee.

Some later Cenozoic Foraminifera from Cape Blanco, Oregon: Jour. Paleontology, v. 24, no. 3, p. 269-281, illus., May 1950. "The lithology and 

significant fossils of the Cenozoic formations exposed at Cape Blanco, 

Oregon, .are discussed briefly. Twenty-four species of Foraminifera 

are described, figured, and analyzed; four new species and two new 

varieties are reported.. Information is introduced which raises a question as to the correlation of the terrace beds at the cape with the Elk 

River beds just north of Elk River."
28 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Banks, Harlan Parker.

Some Upper Devonian plants tabs.] : Am. Jour. Botany, v. 37, no. 8, p. 672, 

Oct. 1950.

Banks, Joseph Edwin. * ' "

Particle-type well logging: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 8, p. 1729- 

1736, illus., Aug. 1950. "A multi-column log form is proposed for recording and analyzing the abundant lithologic information available from 

well samples. The recording method is unique in that particle types 

instead of rock types are plotted. Illustrations are presented, and 

 the method of plotting is explained."

Bannerman, Harold MacColl.

(and Pecora, William Thomas). Training geologists; a United States Geological Survey viewpoint: U. S. Geol. Survey Circ. 73, 6 p. (t), Mar. 

1950. Sets forth the requirements essential to a career as a geologist 

with the Survey.

Barger, Ralph M.

(and Zuiberti, J. L.). San Ardo oil field: Calif. Oil Fields, v. 35, no. 2, p. 15-20, 

illus., July-Dec. 1949. Brief notes on the stratigraphy of the San Ardo 

oil field, Monterey County, California.

Barghoorn, Elso Sterrenberg, Jr.

(and Spackman, William, Jr.). Geological and botanical study of the Brandon 

lignite and its significance in coal petrology: Econ. Geology, v. 45, no. 4, 

p. 344-357, illus., June-July 1950. Lignite of Tertiary age occurs at 

Brandon, Vermont, in a restricted area associated with kaolin, ocher, 

. and iron oxide ore. Recognizable plant tissues consist entirely of hardwood tree and shrub remains and suggest that the deposit formed in 

a humid and warm environment. The original organic composition of 

plant tissues is found to exert a strong influence on physical and 

chemical changes accompanying coalification. V. S.

Barksdale, Julian Devreau.

Shonkin Sag laccolith revisited [Mont.] tabs.]: Geol. Soc. Am. Bull., v. ei, 

no. 12, pt. 2, p. 1442, Dec. 1950.

Barlow, James A., Jr. signiacance of t£« «««*te .tr«cturea of the northeast flank of the Laramle Range [Wyo.] [abs.],: Geoi. soc. Am. Bx»n., v . ei, no. ±2. Pt 2 P ±549

Dec. 1950. 

Barnes, Augustine E., Jr.

not,y pool, Fisher County, Texas: Abilene Geol Soc., Geol. Contr., p. 60-01,

lllUS., 195O. Brief notes on the structure of the field.

Barnes, Frank Charles.

(and Arnold, Emery). Proved and potential on and gas traps of the San 

Juan Basin, in Guidebook of the San Juan Basin, New Mexico ana

Colorado, p. 90-109, Hlus., 1950. Ninety-three structures are listed, 

tO£Gtfl6r Wltfl location and remarks. The- illustrations Include a struc-

 turai map, oil and gas field map, and columnar section,

Barnes, P. Q. 8& Lord, C. S, 

BameS, YirgU Everett.

i. (and Mathis, Robert W., and Romberg, Frederick). Gravity prospecting 

for lead and zinc, New Mexico: Internat. Geol. Cong., 18th, GreEt 

Britain, Rpt. pt. 5, p. 5-15, illus. incl. geoi. map. 1950; abs., Volume of 

titles and abstracts, p. 24,1948. Gravity investigations at the HoustonThomaS prOSpeCt ID tne Fines A.itos TOining district near Silver City,

New Mexico, are described. The resttltS MlMtt » IBe xiee « «x 

gravity meter in rugged terrain for the location of lead-zinc ore bodies 

is practicable.
BIBLIOGRAPHY 29

Barnes, Virgil Everett Continued

2. (and Shock, D. A., and Cunningham, William A.). Utilization of Texas 

serpentine: Texas Univ. Bur. Econ. Geology Pub. 5020, 52 p., illus. 

incl. geol. maps, Oct. 15, 1950. Various sections deal with the geologic 

occurrence of serpentine, mineralogy and crystal structure, experimental. 

data on heat treatment, solubility, and siliceous residues, and possible 

industrial uses.

Barnes, William Howard.

An electron microscopic examination of synthetic tourmaline crystals: Am. 

Mineralogist, v. 35, nos. 5-6, p. 407-411, illus., May-June 1950. "Representative electron micrographs illustrating the forms of tourmaline 

crystals synthesized by Frondel, Hurlbut, and Collette are reproduced. 

A few measurements on the sizes of the crystals are given and the 

behavior of the crystals during fusion in the electron beam is 

illustrated."

Barnetche, Alfonso.

(and Aguilar, Manuel Rodriguez). Las reservas petroleras de la Repiiblica 

mexicana: Asoc. Mex. Ge61. Petrol. Bol., v. 2, no. 2, p.- 89-94, Feb. 1950; 

Petroleos Mexicanos, no. 78, p. 82-86, Feb. 1950. The petroleum reserves 

of Mexico as of 1949 are estimated at 1,270 million barrels. The gas 

reserves are placed at 1,180,000 million cubic feet.

Barr, Kenneth William.

(and others). The crude oils of Trinidad. Part 3, Relationship of crude 

oils and stratigraphy in the Morne Diablo-Quinam field: Inst. Petroleum 

Jour. (London), v. 35, no. 310, p. 675-704, illus., Oct. 1949. Describes 

in detail the chemical characteristics of crude oils from the Forest, 

Upper Cruse, and Middle Cruse sand zones of the Morne Diablo-Quinam, 

and discusses the data in relation to the source of the oil. It is concluded that impregnation of the sands by migration from the Los Bajos 

fault is unlikely.

Barshad, Isaac.

The effect of the interlayer cations on the expansion of the mica type of crystal 

lattice: Am. Mineralogist, v. 35, nos. 3-4, p. 225-238, illus., Mar.-Apr. 

1950. "The ionic radii, the valency, and the total charge of the interlayered cations, as well as the nature of the interlayered substance 

seem to determine the extent of the interlayer expansion of the mica 

type of crystal lattice."

Barthelmes, Albert J.

Geophysical prospecting in western Canada: World Petroleum, v. 21, no. 7, 

p. 47-51, illus., July 1950. Reviews the regional geology and structure 

of the sedimentary basin between the Rocky Mts. and the pre-Cambrian 

shield and -indicates the changes in methods of geophysical prospecting 

used in the area.

Bartley, Jerald Howard.

'1. (and Haigh, Berte Rolph). Prospective Pennsylvanian reef and non-reef 

areas of west Texas: World Oil, v. 131, no. 4, p. 73, 76-80, Sept. 1950. 

Two types of oil reservoirs are distinguished in the Pennsylvanian 

limestone of the Permian basin of western Texas: The reef, developed 

in a belt extending along the eastern platform and south of the Matador 

uplift, and the non-reef in the Midland basin. Their distribution is 

mapped and discussed, with special attention to the Strawn and Canyon 

sections of the Scurry reef trend, and local Pennsylvanian production 

is outlined with tabulation of fields. V. S. 

2. (and Cox, Robert T.). Types of oil and gas traps in west Texas and southeast New Mexico [abs.]: Oil and Gas Jour., v. 48, no. 51, p. 119, Apr. 

27, 1950.

980682° 52 3
30 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Barton, Cecil L.

(and Sampson, Norman N.). Placerita oil field: Calif. Oil Fields, v. 35, no. 2, 

p. 5-14, illus., July-Dec. 1949. Brief description of the stratigraphy 

and structure of the Placerita oil field, Los Angeles County, California.

Bartram, John Greet.

(and Imbt, William C., and Shea, Edward F.). Oil and gas in Arbuckle and 

Ellenburger formations, Mid-Continent region : Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 4, p. 682-700, illus. incl. geol. maps, Apr. 1950; abs., 

Oil and Gas Jour., v. 46, no. 52, p. 110, Apr. 29, 1948. The lithology, 

thickness, distribution, and structures of the Arbuckle formation of 

Cambro-Ordovician age are compared for the areas where they are oiland gas-bearing. The conditions of accumulation, shown on regional 

structure and isopach maps and by cross sections, are discussed. V. S.

Bass, Nathan Wood.

1. Pre-Pennsylvanian Paleozoic rocks in western Colorado and southeastern 

Utah, in Guidebook of the San Juan Basin, New Mexico and Colorado, 

p. 56-57, illus., 1950. Brief notes on the Cambrian, Ordovician, Devonian, 

and Mississippian rocks, with several columnar sections. .

2. (and Northrop, Stuart Alvord). South Canyon Creek dolomite member, a 

unit of Phosphoria age in Maroon formation near Glenwood Springs, 

Colorado : Am. Assoc. Petrol. Geol. Bull., v. 34, no. 7, p. 1540-1551, illus., 

July 1950. A stratigraphic study of 'the South Canyon Creek dolomite 

member of the Maroon formation, Pennsylvanian (?) and Permian (?), 

cropping out west of Glenwood Springs, Colorado. A preliminary study 

of the fossils has yielded a tentative list of pelecypods, scaphopods, and 

gastropods, which appear to be Permian. V. S.

Bassett, Ann Bradley.

pH data, in Analytical data on reference clay minerals:. Am. Petrol. Inst. 

Project 49, Clay Mineral Standards, Prelim. Rpt. 7, p. 59^61, July 1950.

Bassett, John S.

Jud pool, Haskell County, Texas: Abilene Geol. Soc., Geol. Contr., p. 31-33, 

illus., 1950. Notes on the discovery and producing horizons of the field.

Bassler, Ray Smith.

1. New genera of American Middle Ordovician "Cystoidea" : Washington Acad 

Sci. Jour., v. 40, no. 9, p. 273-277, illns., Sept. 15, 1950. Describes 11 

Dew genera and 10 new Species Of Middle Ordovician cystoids occurring

chiefly in ' the Benbolt and Bromide formations in Tennessee and

Oklahoma.

2. Faunal lists and descriptions of Paleozoic corals : Geol. Soc. Am. Mem. 44, 

315 P, illUS.) NOV. 10, 1950. Reference lists of Paleozoic corals of 

North"America, Europe, Asia, AfMcfl, AUStrallfl, RDfl SOUth America. 

Fifty pages are deVOted tO descriptions and classification of Ordovician 

corals, in which the classification by families is revised. 

Bastin, Edson Sunderland.

1. Significant replacement textures at Cobalt and South Lorraine, Ontario, 

Canada : Econ. Geology, v. 45, no. 8, p. 808-817, illus., Dec. 1950. "Results 

of a restudy of Superior polished Specimens Of representative nickeithe ore components are described and dlSCUSSfid,

2, Interpretation of ore textures : Geol. Soc. Am. Mem. 45, lOl p , illus DeC

5, 1950. Descriptions, illustrations, and interpretation of'micrdscopic

ore textures. The chapters cover textures of magmatic Colloidal Tfi- placement, and sedimentary ores, pa^s^^^, «£ J^^i^iJl

sions.

Basurto Garcfa, Jesus.

(and Islas Leal, Juventino). El me'todo sismo!6gico de refracci6n en la 

Cuenca Salina del Istmo: Asoc. Mex. Ge61. Petrol. Bol., v. 2, no. 7, p. 

461-472, illus., July. 1950. Briefly describes seismic refraction work 

in various parts of the Salina Basin of the Isthmus of Tehuantepec, . Mexico.
BIBLIOGRAPHY 31

Bateman, Alan Mara.

Economic mineral deposits. 2d ed. xi, 916 p., illus. New York, John Wiley & 

Sons, Inc. 1950.

Bateman, John Danvers.

The function of a mine geological department [abs.]: Econ. Geology, v. 45, 

no. 4, p. 390-391, June-July 1950.

Bateman, Paul C.

(and Erickson, Max Perry, and Proctor, Paul Dean).. Geology and tungsten 

deposits of the Tungsten Hills, Inyo County, California: Calif. Jour. 

Mines and Geology, v. 46, no. 1, p. 23-42, illus., Jan. 1950. The hills are 

formed by a fault block composed mainly of plutonic igneous rocks enclosing small metamorphic bodies. The deposits are of the contactmetamorphic type. The only tungsten-bearing mineral is scheelite. 

The origin of the deposits is discussed.

Bates, Thomas Fulcher.

1. (and Sand, Leonard B., and Mink, John F.). Tubular crystals of chrysotile 

asbestos: Science, v. Ill, no. 2889, p. 512-513, illus., May 12, 1950. 

Chrysotile forms tubular crystals similar to those of endellite, as shown 

on electron micrographs. The theory of different unit cell dimensions in 

sheet structure, previously developed to explain such crystal formation 

in halloysite and endellite, is applied to antigorite and chrysotile. V. S.

2. (and Hildebrand, Fred A., and Swineford, Ada). Morphology and structure 

of endellite and halloysite: Am. Mineralogist, v. 35, nos. 7-8, p. 463-484, 

illus., July-Aug. 1950; abs., v. 34, nos. 3-4, p. 274, Mar.-Apr. 1949, with 

title Electron mircoscopy of the kaolin minerals; Geol. Soc. Am. Bull., 

v. 59, no. 12, pt. 2, p. 1310-1311, Dec. 1948. "Deals with the morphology 

of kaolinite; halloysite (metahalloysite), and endellite (halloysite) and 

proposes a structural relationship to explain the physical and chemical 

properties and behavior of these minerals. The data were obtained by 

electron microscope and a?-ray diffraction studies of 83 specimens from 

. 66 localities."

3. (and Mink, John F.). Morphology and structure of the serpentine minerals 

antigorite and chrysotile [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1442-1443, Dec. 1950. .

Bauer, W. H.

(and Gordon, I., and Moore, Charles Henkel, Jr.). Flame fusion synthesis of 

mullite single crystals: Am. Ceramic Soc. Jour., v. 33i no. 4, p. 140-143, 

illus., Apr. 1, 1950; abs., Am. Mineralogist, v. 35, nos. 1-2, p. 128, 

Jan.-Feb. 1950. Describes the equipment and materials used in the 

synthesis, and gives optical and .Xrray data for the crystals. The 

largest mullite boule to date has been 2 cm long and 1 cm at its thickest 

point. The flame fusion technique is considered feasible for the study 

of anhydrous silicates under certain conditions.

Baulig, Henri.

 William Morris Davis; master of method: Assoc. Am. Geographers Annals, 

v. 40, no. 3, p. 188-195, Sept. 1950. An analysis of Davis's contributions 

to the development of the science- of geomorphology.

Baxter, Robert W.

Peltastrobus reedae, a new sphenopsid cone from the Pennsylvanian of Indiana: Bot. Gaz., v. 112, no. 2, p. 174-182, illus., Dec. 1950. Gives a 

detailed description of a new genus and species of sphenopsid fructifications from coal balls collected at a mine near Booneville, Indiana. 

Evidence points to a closer relationship to the Sphenophyllales than 

to the Calamitales.

Bayless, John C.

A geologic reconnaissance of the post-Laramide geology of the southeastern 

Snake River plains and adjacent mountain ranges in Idaho : Mien. Acad. 

Sci. Papers, v. 34 (1948), p. 209-226, illus. incl. geol. sketch map, 1950. 

The sediments, volcanics, glacial deposits, and alluvium, of Tertiary, 

Pleistocene, and Recent ages, and the structure of the area are discussed.
32 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Bayne, G. W. See Wheeler, H. E., 1.

Bays, Carl Andrew.

Geophysical methods, in Prospecting for ground water: Am. Water Works 

Assoc. Jour., v. 42, no. 10, p. 947-956, illus., Oct. 1950. Describes the 

various methods applied to prospecting for ground water, as radioactivity, gravity, seismic, magnetic, electrical, geothermal, and electromagnetic, and evaluates their usefulness.

Beach, Hugh Hamilton.

Geology and the petroleum engineer, with special reference to western Canada : World Oil, v. 131, no. 7, p. 250-252, 255-256, 258, illus., Dec. 1950. Discusses the phases in petroleum exploration where the fields of the 

petroleum geologist and the petroleum engineer overlap. The exploratory work on reefs that has been done in western Canada is used in 

illustration of the value of geology to the petroleum engineer. A brief 

summary of reef development is given.

Beales, Francis William.

The late Palaeozoic formations of southwestern Alberta (report and table) : 

Canada Geol. Survey Paper 50-27, 72 p. (t), table, 1950. Gives detailed 

measured sections in the Banff and Mount Head areas, including type 

sections of the Banff, Bundle, and Rocky Mtn. formations, and a table 

of published sections.

Beams, Robert Jess.

Geology of Elk City field [abs.]: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 3, 

p. 626, Mar. 1950.

Bean, Ernest F.

Engineering geology of highway location, construction, and materials, in 

Application of geology to engineering practice, Berkey Volume, p. 181-193, 

illus., Geol. Soc. Am., New York, 1950. The use of geological information 

in the location of highways, bridge foundations, classification of excavation materials, grading problems, control of landslides, and investigation 

of road materials is discussed.

Bearman, Charles Henry. See Byrne, F. E., 4.

Beatty, Suzanne van Dijke.

X-ray diffraction patterns of asbestos: Am. Mineralogist, v. 35, nos. 7-8, 

p. 579-589, July-Aug. 1950. Data for the X-ray diffraction patterns of 

10 asbestos specimens, including chrysotile, crocidolite, and anthophyllite, are given. Features for identification of the pattern are obtained both from powder and fiber samples. Patterns of chrysotile

show a considerable amount of .variation in the number, sharpness, and 

d values of the reflections.

Beaumont, Edward C.

(and Read, Charles Brian). Geologic history of the San Juan Basin area-, 

New Mexico and Colorado, in Guidebook of the San Juan Basin, New 

Mexico and Colorado, p. 49-52, 1950. A brief summary of geologic 

events during the Paleozoic, Mesozoic, and Cenozoic eras.

Beck, A. F.

Western Canadian plains, a new challenge to geophysics: Canadian Min, Met,

Bull. no. 455, p. 132-135, illus.,-Mar. 1950; Canadian Irist. Mining and 

Metallurgy Trans., v. 53, p. 82-So, 195O. Tlie xise of electrical, gravitational, magnetic, ana seismic methods for oil search in the plains

region is outlined, and local problems of technique and interpretation

are indicated.' "V. S.
BIBLIOGRAPHY 33

Beck, Carl W.

1. (and LaPaz, Lincoln). The Albuquerque, Bernalillo County, New Mexico, 

siderite: Pop. Astronomy, v. 58, no. 2, p. 85-89, illus., Feb. 1950; Meteor. 

Soc. Contr., v. 4, no. 4, p. 245-249, illus., 1950. Mineralogical, chemical, 

and radiochemical data are given for a meteorite found approximately 

15 miles southwest of Albuquerque, New Mexico. The specimen weighs 

157.3 gm; ECN=+1068,350. The data indicate that it is not a part 

. of the Canyon Diablo fall.

2. An amplifier for differential thermal analysis: Am. Mineralogist, v. 35, 

nos. 7-8, p. 508-524, illus., July-Aug. 1950; correction, nos. 11-12, p. 1090, 

illus., Nov.-Dec. 1950. "An amplifier to-be used with pen and ink 

recorders in the differential thermal analysis studies of minerals is 

 described... . . Curves for 14 analyzed minerals recorded with a pen 

and ink recorder are compared with photographically recorded 

curves obtained by Speil (1945) on the same minerals." The correction concerns errors in the wiring diagram of the apparatus.

3. Differential thermal analysis curves of carbonate minerals: 'Am. Mineralogist, v. 35, nos. 11-12, p. 985-1013, illus., Nov.-Dec. 1950. Presents 

and discusses thermal analysis data for forty-eight carbonate minerals.

Beck, Henry Vorhees. See Byrne, F. E., 3, 4..

Beebe, Byron Warren.

Geologic responsibility in seismic exploration [abs.] * Geophysics, v. 15, no. 1, 

p. 150-151, Jan. 1950; Am. Assoc. Petrol. Geol. Bull., v. 34, no. 3, 

p. 623-624, Mar. 1950.

Beers, Roland Frank.

Geophysical problems in applied sedimentation, in Applied sedimentation, 

p. 72-92,1950. The various branches of geophysics, such as pure science, 

exploration for oil and minerals, engineering,.geologic mapping, development of oil'and minerals, and application to military and'naval problems, are described. Problems for future research are noted. An 

annotated list of reference texts and periodicals is given.

Behre, Charles Henry, Jr.

1. Problems of the genesis of mineral deposits of the southeastern states, 

in Snyder, F. G., ed., Symposium on mineral resources of the southeastern United States, p. 26-41, illus., 1950. A genetic classification 

including the following types igneous, contact metamorphic, pegmatitic, hypothermal, mesothermal, and epithermal veins, sedimentary 

deposits, and residual concentrates is proposed. Certain genetic problems, such as the origin of zinc and lead ore-bearing solutions, of the 

Ducktown copper ores, and of the sedimentary iron ores, are discussed 

briefly.

2. (and Heyl, Alien Van, Jr., and McKnight, Edwin Thor). Zinc and lead 

deposits of the Mississippi Valley, in Dunham, K. C., ed., Symposium 

on ... lead and zinc: Internat. Geol. Cong., ISth, Great Britain, Rpt. 

pt. 7, p. 51-69, illus., 1950; abs., Volume of titles and abstracts, p. 40-41, 

1948. Describes the occurrence, mineralogy, paragenesis, and origin 

of the deposits in the Mississippian limestones in the Tri-State region, 

in the Cambrian dolomites of southeast Missouri, in the Mississippian 

strata of the Illinois-Kentucky fluorite district, and in the Ordovician 

strata of the Upper Mississippi Valley.

Beland, Rene. .

1. Taibi Lake area, Abitibi-East County: Quebec Dept. Mines, Geol. Surveys 

Br., Geol. Rpt. 40, 19 p., illus. incl. geol. map, 1950. Describes the 

general and structural geology of an area of pre-Cambrian volcanics and 

intrusives in northern Quebec.

2. Le synclinal, du Lac Wakeharn et la fosse du Labrador: Naturaliste 

Canadien, v. 77, nos. 9-10, p. 291-304, illus., Sept.-Oct. 1950. Proposes 

that the metasediments of the Wakeham Lake area, on the north shore 

of the St. Lawrence River in eastern Quebec, and the metasediments of 

the Lake Gabbro area 200 miles to the northwest can be correlated and 

are of early Huronian age. If the two are considered correlative, then 

the Huronian and the Grenville are not of the same age.
34 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Bell, Gordon Leon.

Mirabilite deposits at the south end, Great Salt Lake, Utah [abs.] : Utah 

Acad. Sci. Proc., v. 25, p. 183, 1948.

Bell, Mendell McClellan. See Crawford, A. L., 3 ; Hager, D., 2.

Bell, Wallace G.

Problems of the structure and stratigraphy of the upper Sweetwater Valley, 

west-central Wyoming [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12; pt. 2, 

p. 1549-1550, Dec. 1950.

Bell, William Charles.

1. Stratigraphy ; a factor in paleontologic taxonomy : Jour. Paleontology, v. 24, 

no. 4, p. 492-496, July 1950. A discussion of the relations of superposition Of Strata to faunal succession, emphasizing the dependence of 

faunal development and distribution on depositional environment. It 

is concluded that "the logical approach to paleontologic taxonomy is 

to regard it as a method of expressing stratigraphic (time and geographic) relationships among organisms."

2. (and Berg, R. R.). Franconia formation of Minnesota and Wisconsin 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1443, Dec. 1950.

Bellen, Robert Carel, van.

A pitfall of paleontologic "Latin" : Jour. Paleontology, v. 24, no. 4, p. 504, 

July 1950. Explains that a v'arietal name should be feminine even 

though attached to masculine or neuter generic and specific names.

V. S.

Belser, Carl. See Duncan, D. C.

Bemrose, John.

(and others). Bahamas airborne magnetometer survey: Geophysics, v. 15, 

no. 1, p. 102-109, illus., Jan. 1950. A brief account of the problems, 

organization, and technical operations of the Bahamas aeromagnetic 

survey, conducted jointly by five oil companies. V. S.

Benavides G., Luis.

1. Geologla de la region de Tenosique, Tab. : Asoc. Mex. Ge61. Petrol. Bol., 

V, 1, no. 1, p. 5-26, illus. incl. geol. map, Nov. 1949. The Tenosique area, 

in the southeastern 'part Of Tabasco Province, Mexico, bordering on 

Guatemala, is characterized by Tertiary -and Quaternary Sandstones 

and limestones. In the southern part southeast-trending- anticlines of 

Eocene and Oligocene strata form the Coba and Santa Rosa ridges. In 

the northern part Miocene to Pleistocene strata constitute a northwardsloping monocline. * T, y- s2. El anticlinal del Cerro Pel6n, Municipio de Mmatitlan, VfiFflCFUZ ! ASOCi 

Mex. Ge61. Petrol. Bol., v. 2, no. 10, p. 599-616, illus. incl. geol. sk. map, 

Oct. 1950. The stratigraphy, structure, and geologic history of the Cerro 

Pel6n area, near Minatitlan, southeastern Veracruz, are described. The 

Structure is anticlinal and faulting is present. The strata are Jurassic,

Cretaceous, Eocene, and Oligocene.

Bernard Mayes.

Aerial photography givCS a "DMS-eyC View"! retroieo inter.meric.jo , j

no. 6, p. 40-42, inns., June 1950. (Spanish and English). JJ1SCUSSOS

briefly the USeS Of aerial photography in oil exploration, especially in

tropical regions, clues to the identification of structures and rocks UD

Photographs, and ground checks. y q

Benfield, Adalbert Edwin.

1. The temperature in an accreting earth ; Am. Geophys. Union Trans., v. 31, 

no. ip. 53-57, Feb. 1950. "The temperature at the surface Of an

aCCretlDg Cart!! IS aiSWSSecl-, It is concluded that the surface ia likely

to be molten during the later stages of thfi PfOCGSSi Be effect o* 

pressure alone in raising the temperature in the deep interior is also 

considered; this effect appears to be inadequate to cause melting, but 

no definite conclusion is drawn, as numerous uncertainties enter into 

this calculation."
BIBLIOGRAPHY 35

Benfield, Adalbert Edwin Continued '

2. The earth's heat: Sci. Am., v. 183, no. 6, p. 54-57, illus., Dec. 1950. A 

general article on the origin, measurement, and significance of the heat 

of the earth.

Benioff, Hugo. .

1. Earthquakes and rock creep [abs.]: Science, v. 109, no. 2835, p. 438, Apr. 

29, 1949; (continued) Geol. Soc! Am. Bull., v. 60, no. 12, pt. 2, p. 1936- 

1937, Dec. 1949.

2. Earthquakes and rock creep [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 

2, p. 1543, Dec. 1950. Not the same as Benioff 1, above.

3. Preliminary report on two capacity transducer seismographs [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1543, Dec. 1950.

Bennett, William Alfred Glenn.

Salines at Carbonate Lake, Grant County, Washington [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1520, Dec. 1950.

Benninghoff, William S.

1. Use of aerial photographs in mapping vegetation and surflcial geology in 

subarctic regions: Photogrammetric Engineering, v. 16, no. 3, p. 428-429, 

June 1950. The aerial photographs are useful for orientation in poorly 

mapped areas, planning ground sampling, plotting of sample localities, 

interpreting areas between sampled areas.

2. Late Quaternary vegetation on No Mans Land Island, Massachusetts [abs.]: 

Geol. Soc. Am. Bull., v. 61, no! 12, pt. 2, p. 1443-1444, Dec. 1950.

Benson, W. T.

Investigation of .Black Rock manganese deposits, Esmeralda County, Nev.: 

U. S. Bur. Mines Rpt. Inv. 4717, 5 p. ($), illus. incl. geol. sketch map, 

Aug. 1950. In the Black Rock deposits of Esmeralda County, Nevada, 

manganese oxide occurs as lenses and laminae in calcareous sinter' 

deposited by thermal waters in fractured zones in tuff. The geology, 

ore bodies, and manganese content of ores are described. V. S.

Benson, William Edward Barnes.

(and Golder, Charles R.). Paleocene deformation in North Dakota [abs..]: 

Geol..Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1444, Dec. 1950.

Berg, R. R. See Bell, W. C., 2. 

Berger, Philip. See Leet, L. D., 3.

Bermudez, Pedro Joaquin.

1. Contribucio'n al estudio del Cenozoico cubano: Soc. Cubana Historia Nat. 

. Mem., v. 19, no. 3, p. 205-375, May 26, 1950. The Cenozoic stratigraphy 

is outlined on the basis of the Foraminifera and the species identified 

in each formation are listed. A chart shows the stratigraphic distribution of 1,500 species. Formations are correlated with the Cenozoic of 

Florida, Mexico, and Hispaniola. An extensive bibliography is included.

2. Foraminiferos forjadores de mundos: Bol. Historia Nat., v. 1, no. 3, p.

. 101-103 ($), illus., Nov. 1950; Petr61eos Mexicanos, no. 85, p. 7-11,

illus., Sept.-1950. A popular account of Foraminifera, their role in the

formation of the earth's crust, and their use in geologic studies and.the

search for oil. V. S.

Bernhagen, Ralph John.

The interrelation between geology and stream flow: Ohio State Univ., Eng. 

Expt. Sta. News, v. 22, no. 2, p. 16, 36-38, illus., Apr. 1950. Studies of 

the Licking River and Mahoning River basins in Ohio have shown that 

a definite relationship can be established between stream flow and the 

geologic characteristics of the area traversed. A comparative table is 

given for several Ohio streams.
36 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Berry, Edward Willard.

1. Exploration for petroleum and natural gas in North Carolina, in The mining 

industry in North Carolina from 1937 to 1945: N. C. Dept. Conserv. 

Dev., Div. Mineral Res., Econ. Paper no. 65, p. 55-57, [1950?]. The 

exploration drilling of various companies is outlined briefly.

2. Conglomerate in the "Carolina slates" [abs.]: Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1444, Dec. 1950..

3. A Cretaceous log-jam [abs.] : N. C. Acad. Sci. Proc. in Elisha Mitchell Sci. 

Soc. Jour., v. 66, no. 2, p. 116, Dec. 1950.

Berry, Leonard Gascoigne.

1. On pseudomalachite and cornetite: Am. Mineralogist, v. 35, nos. 5-6, p. 

365-385, illus., May-June 1950. Physical and optical properties and 

X-ray data are given for pseudomalachite, CiisCPCXMOHK and 

cornetite, Cu8PO4 (OH) 3 .

2. (and Thornton, F. M.). On cenosite [abs.]: Royal Soc. Canada Proc., 3d 

ser., v. 44, p. 228, 1950.

Berryhill, Henry Lee, Jr.

(and others). Coal resources of Wyoming: U. S. Geol. Survey Circ. 81, 78 

p. ($), illus., Sept. 1950. The Wyoming coal reserves, of Cretaceous 

and Eocene age, are appraised at 121,553,850,000 short tons of bituminous and sub-bituminous coal. Classes of reserves, method of estimation, and the ten major areas are described. Maps, cross sections, statistical data, and a bibliography are given. V. S.

Berryhill, Louise Russell. See Averitt, P., 2.

Bertrand, Didier.

The biogeochemistry of vanadium: Am. Mus. Nat. History Bull., v. 94, art. 7, 

p. 405-455, 1950. A portion of this paper is devoted to vanadium in 

the geosphere, with sections on its occurrence in rocks and sediments, 

water, arable soils, coals, petroleum, petroliferous schists, bitumens, 

and asphaltites. A bibliography is given.

Beveridge, Thomas R.

Thrust faulting in south-western Missouri [abs.] : Qeol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1444-1445, Dec. 1950.

Beyer, Arthur F.

Additions to the fossil flora of Specimen Ridge, Yellowstone National Park, 

Wyoming [abs.] : Am. Jour. Botany, v. 37, no. 8, p. 672, Oct. 1950.

Bichan, W. James.

1. Reported radioactive occurrences in SasKatcaewun ; 'Western Miner, v. 23,

no. 3, p. 47-51, illus., Mar. 1950. The mechanics of fracturing, shear,

and erosion, applied to the pre-Cambrian-Paleozoio contact, and the

Known nost roclcs, cnanuelways, ana Clepoaits or uranium imueruia lu

the region suggest that radioactive occurrences exist not only near the 

present margin of the Canadian Shield, where they have been found so 

far, but throughout its fracture pattei'n. = V. S.

2. Saskatchewan, the uranium province: Geol. Assoc. Canada Proc., v. 2, 

p. 57-59, Apr. 1950. A brief review of the recent uranium discoveries

in Saskatchewan, including a discussion of the geologic factors bearing

bn the occurrence of pitchblende. 

Bieber, Charles Leonard.

Distribution patterns of Sana ana gravel pits in northwestern maiana; ina,

Acad. Sci. tPrpc.L v. 59, p. 221-224, t illus., 1950. The location of gravel

than the morainic pattern. The pit pattern is interpreted and shown

on a map.

Bieberman, Doris Franz, See Esarey, R. E., 1, 2, 

Bieberman, R. A. See Esarey, R. E., 2.
BIBLIOGRAPHY 37

Billings, Mar land Pratt.

1. Stratigraphy and the study of metamorphic rocks: Geol. Soc. Am. Bull., 

v. 61, no. 5, p. 435-448, illus., May 1950. The importance of stratigraphy, 

sedimentation, and paleogeography in the study and mapping of metamorphic rocks is stressed, particularly in view of the recent emphasis 

that has been placed on petrographic and chemical work. The place of 

sedimentary facies, time surfaces, lithology, paleogeography, and field 

geology is discussed. Cartographic representation of stratigraphy and 

lithology in areas of progressive metamorphism is illustrated by a map, 

and a bibliography is given.

2. (and White, Walter Stanley). Metamorphosed mafic dikes of the Woodsville quadrangle, Vermont and New Hampshire: Am. Mineralogist, v. 35, 

nos. 9-10, p. 629-643, illus., Sept.-Oct. 1950. "Metamorphosed mafic 

dikes, probably late Devonian, intrude metasedimentary and metavolcanic rocks ranging from Middle Ordovician to Early Devonian. 

The grade of metamorphism in the intruded rocks ranges from lowgrade (chlorite zone) to high-grade (sillimanite zone). The dikes, 

presumably diabases before metamorphism, now show seven principal 

mineral assemblages as well1 as several transitional types."

3. Field and laboratory methods in the study of metamorphic rocks: N. Y. 

Acad. Sci. Trans., ser. 2, v. 13, no. 2, p. ,44-51, illus., Dec. 1950. Discusses various significant points in the study and mapping of metamorphic rocks, as rock classification, minor folds and their relation to 

major structure, shear folds, flexure folds, lineation, boudinage, and 

direction of movement. Comments on the use of petrofabric studies in 

a regional investigation of metamorphic rocks are included.

Billings Geological Society.

[Guidebook] First annual field conference, September 15-17, 1950. 90 p., illus. 

incl. geol. maps. Billings, Montana. 1950. Guidebook for the three-day 

field trip of the Billings Geological Society, covering the following itinerary: Billings, Big Timber, Bozeman, Lewis & Clark Cavern State 

Park, Boulder, Helena, Townsend, White Sulphur Springs, Lavina, and 

Billings. Numerous photographs, sections, and maps are included.

Billingsley, Granville Alton. See,Hewitt, F. A.; Klein, H.

Billingsley, Harold Ray. -

Sholem Alechein pool presents complex geological picture: World Oil, v. 130, 

no. 2, p. 61-66, illus. incl. geol. maps, Feb. 1950; abs. with title, Stratigraphic and structural history of Sholem Alechem oil field, southern 

Oklahoma, Am. Assoc. Petrol. Geol. Bull., v. 34, no. 3, p. 624, Mar. 1950. 

Gives'the stratigraphy, structure, and geologic history of the Sholem 

Alechem oil field, an anticline of Pennsylvanian strata near the northwest-southeast trending Anadarko-Ardmore geosyncline. V. S.

Birch, Albert Francis.

1. Flow of heat in the Front Range, Colorado: Geol. Soc. Am. Bull., v. 61, no. 6, 

p. 567-630, illus., June 1950; abs., v. 59, no. 12, pt. 2, p. 1312, Dec. 1948. 

A detailed report on the temperature observations made in the Alva 

B. Adams Tunnel under Rocky Mtn. Natl. Park to test the hypothesis 

that a greater flow of heat can be expected in mountains than in lowlands. The observed heat flow is consistent with the doctrine of mountain roots and with an approximately uniform distribution of radioactivity throughout the "granitic" layer.

2. A simple technique for the study of the elasticity of crystals: Am. Mineralogist, v. 35, nos. 9-10, p. 644-650, illus., Sept.-Oct. 1950. "A brief review 

is given of the use of the composite piezoelectric oscillator for determination of the elastic constants of small samples. A few preliminary 

results for single crystals have been obtained, for comparison with 

older measurements."

3. Elasticity and composition of the earth's interior [abs.]: Science, v. 112, 

no. 2912, p. 453, Oct. 20,1950.
38 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Birkenhauer, Henry Francis.

Fifty years of Jesuit seismology: Earthquake Notes, v. 21, nos. 1-2, p. 11-13, 

Mar.-June 1950. Brief biography of Frederick L. Odenbach, founder of 

Jesuit seismology in the United States.

Birks, L. S.

(and Schulman, James Herbert). The effect of various impurities on the 

crystallization of amorphous silicic acid: Am. Mineralogist, v. 35, nos. 

11-12, p. 1035-1038, illus., Nov.-Dec. 1950. Five added impurities, the 

carbonates of magnesium, calcium, strontium, barium, and manganese, 

were found effective in the transformation of amorphous silicic acid 

to quartz several hundred degrees above its stability limit. The action 

is not explained.

Bissell, Harold Joseph. See also Thompson, M. L.

Carboniferous and Permian stratigraphy of the Uinta Basin area, in Petroleum 

geology of the Uinta Basin: Guidebook to the Geology of Utah, no. 5, 

p. 71-96, illus., 1950. The lithology, thickness, and distribution of 

the Mississippian, Pennsylvanian, and Permian strata in the vicinity 

of the Uinta Basin, Colorado and Utah, are described. Tentative correlations are made. Paleogeographic conditions are described.

Black, Robert Foster.

Permafrost, in Applied sedimentation, p. 247-275, illus., 1950. The points 

covered include the origin and general character of permafrost; geologic, engineering and biologic significance; factors affecting and various 

.practical problems associated with permafrost such as construction, 

water supply, agriculture, mining, and military operations; and the 

need for future research. A bibliography is given.

Blackball, John A. See Alien, W. B.

Blackman, Doris H.

Geologic guides to carnotite deposits on the Colorado Plateau [abs.]: Min. 

Cong. Jour., v, 36, no. 10, p. 84, Oct. 1950.

Blackwelder, Eliot.

1. Pleistocene geology, the Green Raver Basin, Wyoming; Wyo. Geoi. Assoc. 

Guidebook, Southwest Wyoming, p. 81-85, illus., 1950. Briefly describes

glaciation of the Green River basin area, and river terraces, and gives 

a tentative correlation table of glacial stages and erosion cycles.

2. [Bailey Willia, 1857-1949]: Geol. Soc. London, Quart. Jour., v. 105, pt. 8, 

no. 419, p. Ivi-lviii, Sept. 1950.

Blake, Daniel B.

Gosport Eocene Ostracoda from Little StRVe Creek, Alabama; Jour. Paleontology, v. 24, no. 2, p. 174-184, illus., Mar. 1950. Twenty-four SpecieS 

Of OStracoues, eleven new, and one new genus, collected from the Gosport

sand Of the OlaibOrne EOCene, are described and figured, some of them

occur in the Gosport formation at Clalbome Bluff OH 1116 AlaDaiM

River. v. s.

Blake, Donald A.. WPreliminary report on Waswampi Lake area (east naif) Amum-East oounty : 

Quebec Dept. Mines, Geoi. Surveys Br., Prelim. Rpt. 233, 1 p, (I), geoi.

IMP, 1948. A brief report on the pre-Cambrian rocks and structure of 

part of the Waswanipi Lake area in northern QuetJCC, Tnree small 

T'wTVj'r A*Jlit^e'stSni?«n ontain a variety of fossils and are probably of Middle Ordoviciafl age. -

Blankenship, R. R. See Schneider, R.

Blanpied, Bernard William.

' Howard Nelson Spofford (1881-1950): Am. Assoc. Petrol. Geol. Bull., v. 34, 

no. 7, p. 1613-1614, port., July 1950.

Bliss, Jack E. See Locke, L. 0.
BIBLIOGRAPHY 39

Bloomer, Robert Oliver.

1. The Blue Ridge Mountains; in The James River Basin, past, present and 

future, p. 498-513, Va. Acad. Sci., 1950. Discusses the pre-Cambrian 

and Cambrian stratigraphy of the Blue Ridge area in Virginia. Brief 

sections on the topography, structure, and mineral resources are included.

2. Late pre-Cambrian or Lower Cambrian formations in central Virginia: 

Am. Jour. Sci., v. 248, no. 11, p. 753-783, illus. iricl. geol. maps, Nov. 

1950. Discusses the stratigraphic field relations, age relations, and 

nomenclature of the Lynchburg, Swift Run, and Catoctin formations 

and the Chilhowee series in the Blue Ridge province northeast of 

' Roanoke, Virginia. It is proposed that there is a continuous sequence 

from the base of the Lynchburg into the Chilhowee, and that apparent 

unconformities are due, not to erosion intervals, but to location of the 

sections with respect to the margin of overlap. Relationship of the 

Wissahickon formation in the Piedmont province is discussed.

Boardman, Leoha. .

1. (and Watson, Elaine). Geologic map index of Alabama: U. S. Geol. Survey 

Index to geologic mapping in the United States. Scale 1: 1,000,000 or 

about 1 inch to 16 miles. 1950.

2. Geologic map index of Arizona: U. S. Geol. Survey Index to geologic mapping in the United States. Scale 1:1,000,000 or about 1 inch to 16 miles. 

1950.

3. (and Brown, Annabel, and Watson, Elaine). Geologic map index of Indiana: U. S. Geol. Survey Index to geologic mapping in the United 

States. Scale 1: 750,000 or about 1 inch to 12 miles. 1950.

4. Geologic map index of Louisiana: U. S. -Geol. Survey Index to geologic 

mapping in the United States. Scale 1:1,000,000 or about 1 inch to 

16 miles. 1950.

5. Geologic map index of Mississippi: U. S. Geol. Survey Index to geologic 

mapping in the United States. Scale 1:1,000,000 or about 1 inch to 

16 miles. 1950.

6. (and Brown, Annabel). Geologic map index of New Mexico: U. S. Geol. 

Survey Index to geologic mapping in the United States. Scale 1: 750,000 

or about 1 inch to 12 miles. 1950.

7. (and Watson, Elaine). Geologic map index of North Carolina: U. S. Geol. 

Survey Index to geologic mapping in the United States. Scale 1: 750,000 

or about 1 inch to 12 miles. 1950.

8. Geologic map index of South Carolina: U. S. Geol. Survey Index to geologic 

mapping in the United States. Scale 1:1,000,000 or about 1 inch to 

16 miles. 1950.

Boardman, Robert Leland. See McKelvey, V. E., 3.

Bodenlos, Alfred John.

Geology of the Red Mountain magnesite district, Santa Clara and Stanislaus 

Counties, California: Calif. Jour. Mines and Geology, v. 46, no. 2, p. 

223-278, illus, incl. geol. maps, Apr. 1950. The magnesite deposits are 

located in the serpentinized shear zones of an ultramafic sill intruded 

into the Franciscan formation of Upper Jurassic (?) age. The mineralization and conditions of deposition are described, with reference to 

the various mines. Geologic maps and a bibliograpy are given. V. S.

Begvad, Richard.

Nepheline syenite and iron ore deposits in Greenland: Arctic, v. 3, no. 2, p. 86- 

94, illus., A-ug. 1950. Nepheline syenite has been found at three localities, the most promising of which is Kangerdluarsuk on the east 

coast, which is described briefly. Iron occurs in insignificant quantities. 

"Ore at one locality, Gr0nnedal, in Arsuk fiord near Ivigtut, southern 

Greenland, contains 24-46.7 percent iron (average) but is high in 

phosphorus. 

Bolander, Louis Phillip, Jr., 1887-1950.

1. New California mineral, perovskite: Mineralogist, v. 18, no. 2, p. 65, illus., 

Feb. 1950. Notes the occurrence of perovskite at the Gem mine, San 

Benito County, California. V. S.
40 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Bolander, Louis Phillip, Jr. Continued

2. First jadeite discovery [in] America: Mineralogist, v. 18, no. 4, p. 186, 

188, Apr. 1950. Tjie mineral has been found as a stream boulder near 

the Gem mine, San Benito County, California. V. S.

Bold, W. A., van den.

A checklist of Cuban Ostracoda: Jour. Paleontology, v. 24, no. 1, p. 107-109, 

Jan. 1950. The occurrence of 48 Tertiary and Cretaceous ostracodes 

is reported with differentiated chronologic assignment, in amplification 

and correction of a previous study (Utrecht Univ. thesis, 1946). V. S.

Bolli, Hans.

Disintegration of indurated siliceous rocks: Micropaleontologist, v. 4, no. 3, p. 

20-21, July 1950. Crushing to 1-10 mm and boiling in a solution of 20 

percent NaOH in water is recommended for disintegrating rocks resistant to the gasoline and hydrogen peroxide methods!

Bond, Walter L.

Nomographs for triclinic cell computations: Am. Mineralogist, v. 35, nos. 3-4, 

p. 239-244, illus., Mar.-Apr. 1950. Three types of charts are shown that 

are useful in the solution of problems involving equations for computing 

constants of triclinic cells. Two types of problems are used as illustrations ; one with the cell edge ratios and angles given to make a 

gnomonic projection, and the other with atomic plane spacings given 

for computation of the cell edges and angles.

Bonifield, Henry Lease.

Millican field, Coke County, Texas: Abilene Geol. Soc., Geol. Contr., p. 34-35, 

illus., 1950. Brief notes on the discovery, stratigraphy, and structure 

of the field.

Boos, Charles Maynard. 

Source beds for oil near coral reefs: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 2, 

p. 313, Feb. 1950. Though the marine environment of reefs is well 

sxiited for the growth of organic life requisite for oil formation, its great 

scavenger population makes an additional condition necessary, the 

prompt burial of organic matter. V. S.

Boos, Margaret Fuller.

structure in the Precambrian west of Denver [abs.] : Geol. Soc. Am. Bull., 

V. 61, no. 12, pt. 2, p. 1550, Dec. 195O.

Booth, Verne H.

Stratigraphy and structure of the Oak Hill succession in Vermont: Geol. Soc.' 

Am. Bull., v. 61, no. 10, p. 1131-1168, illus. incl. geol. map, Oct. 1950. 

The Oak Hill succession, between the Champlain Lowlands and the 

Green Mountains, northwestern Vermont, consists of 9 Cambrian formaSons that have been highly folded Md ttoBt faulted. The stratigraphy 

and structure are discussed in detail. V. O.

Borax, Eugene. See Hazzard, J. C., 1,4.

Bornhauser, Max.

Oil and gas accumulation controlled by sedimentary facies in Eocene Wilcox 

to Cockfield formations, Louisiana Gulf Coast: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 9, p. 1887-1896, illus., Sept. 1950. The facies problems 

of the Eocene formations ranging from Wilcox to Cockfield are disCUSSed and illustrated and the structural type, producing formations, and 

reservoir characteristics described briefly. Petroleum accumulation 

appears to be controlled by the presence of marine shale bodies, and a 

i possible relationship between oil types and sedimentary facies seems

to be indicated. V. S.
BIBLIOGRAPHY 41

Bostock, Hugh Samuel.

Potential mineral resources of Yukon Territory (report and figure) : Canada 

Geol. Survey Paper 50-14, 29 p. (t), map, 1950; reprinted in part in 

Earth Sci. Digest, v. 5, no. 3, p. 3-17, map, Oct. 1950. Mineralization in 

Yukon Territory is mainly associated with a belt of pre-Cambrian rocks 

which reaches from northwestern United States and British Columbia 

into Alaska. Eleven mineralized areas, mainly gold-, copper-, silver-, and 

lead-bearing, and numerous coal and oil areas are mapped and described 

briefly. - . V. S.

Boucher, F. G.

(and Hildebrandt, A. B., and Hagen, H. B.). New dip-logging method: Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 10, p. 2007-2026, illus., Oct. 1950. 

Describes a method of determining the dip and strike of subsurface 

formations from a triple-profile log in a single bore hole. The basis 

of the method is that drilling erodes some formations more than others. 

Field tests of dips ranging from zero to 75° are reported. V. S.

Boulter, George W.

Placer deposits of Last Chance Gulch, Helena, Montana: Billings Geol. Soc., 

First Annual Field Conference, Sept. 15-17, 1950, p. 72-73, 1950. Brief 

general comments on the gold-bearing placer gravels in the Helena, 

Montana, area.

Bowditch, Samuel I.

[Discussion of alteration and its application to ore search], in Applied geology,, 

a symposium : Colo. School of Mines Quart., v. 45, no. IB, p. 280, 283-284, 

Jan. 1950.

Bowen, Norman Levi. See also Tuttle, 0. F., 2.

1. Presentation of the Roebling Medal of the Mineralogical Society of America 

to Herbert E. Merwin: Am. Mineralogist, v. 35, nos. 3-4, p. 255-257, 

port., Mar.-Apr. 1950.

2. Charles Whitman Cross [1854-1949] : Geol. Soc. London, Quart. Jour., v. 

105, pt. 3; no. 419, p. Iv-lvi, Sept. 1950.

3. (and Tuttle, Orville Frank). The system NaAlSuOa-KAlSigOg-HaO: Jour. 

Geology, v. 58, no. 5, p. 489-511, illus., Sept. 1950; abs., Geol. Soc. Am. 

Bull., v. 60, no. 12, pt. 2, p. 1874-1875, Dec. 1949; Am. Mineralogist, 

v. 35, nos. 3-4, p. 278, Mar.-Apr. 1950. Experimental investigations of 

crystallization, equilibrium of the alkali feldspars are described and 

discussed, and the results are evaluated from the petrologic standpoint.

4. The making of a magmatist: Am. Mineralogist, v. 35, nos. 9-10, p. 651-658, 

Sept.-Oct. 1950. "Professor Larsen's studies of lavas, minor intrusions, 

and batholiths in the San Juan region of Colorado and in southern 

California are presented as the basis of his development of magmatist 

views. Anti-magmatist views on the formation of batholiths are discussed, and also the magmatist view that batholiths are formed by 

refusion in a tectogene."

5. (and Tuttle, Orville Frank). Serpentine and talc equilibria [abs.] : Internat. Geol. Gong., 18th, Great Britain, Rpt. pt. 2, p. 36, 1950; Volume of 

titles and abstracts, p. 4, 1948. Published in full as "The system 

MgO-SiO2-H2O" in Geol. Soc. Am. Bull., v. 60, no. 3, p. 439-460, illus., 

Mar. 1949.

6. Petrologic-cosmogonic dilemma [abs.]: Science, v. 112, no. 2912, p. 453-454, 

Oct. 20, 1950.

Bowen, Oliver E., Jr. See Hutton, C. O., 1.

Bowles, Oliver.

Varieties and uses of asbestos: Asbestos, v. 32, no. 3, p. 4, 6, 8, 10-12, Sept. 

1950. The composition, properties, occurrence, and principal uses of 

asbestos are described briefly. V. S.

Bowsher, Arthur Leroy.

(and Dutro, J. Thomas, Jr.). Stratigraphy and paleontology of the Mississippian rocks in the central part of the Brooks Range, Alaska [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1445, Dec. 1950.
Boyle, R. W. See Kennedy, G. C., 2.

Bradish, Beverly B.

1. (and Mills, N. K.). Generalized nomenclature chart, in Guidebook of the 

San Juan Basin, New Mexico and Colorado, p. 48, 1950. Generalized 

columnar sections of northeastern Arizona, southeastern Utah, southwestern Colorado, and areas in New Mexico.

2. (and Mills, N. K.). Pennsylvanian rocks of the San Juan Basin, in Guidebook of the San Juan Basin, New Mexico and Colorado, p. 58-61, illus., 

1950. Brief notes on the Pennsylvanian strata, paleogeography, and 

correlation.

Bradley, Charles Crane. See Emmons, R. C.

Bradley, John Samuel.

Upper Cretaceous-Eocene (?) Nanaimo group of the San Juan Islands, Washington [abs.]: Geol. Soc. Am. Bull,, v. 61, no. 12, pt. 2, p. 1520, Dec. 

1950.

Bradley, William Frank.

The alternating layer sequence of rectorite: Am. Mineralogist, v. 35, nos! 7-8, 

p. 590-595, illus., July-Aug. 1950; abs., nos. 3-^, p. 278, Mar.-Apr. 1950; 

Geol. Soc. Am. Bull., v. 60, no. 12, pt. 2, p. 1875, Dec. 1949. "Rectorite 

is a complex layer type hydrous alumino-silicate related to the better 

known mica-like minerals. The structural scheme of rectorite consists 

of contiguous pairs of pyrophyllite-like units separated by pairs of 

layers of water molecules."

Bramlette, Milton Nunn. See Woodring, W. P.

Brannock, Walter Wallace. See Switzer, G.; White, D. B., 2.

Branson, Delmar 0. .

Blackfoot field, Anderson County, Texas: Am. Asspc. Petrol. Geol. Bull., v. 34, 

no. 8, p. 1750-1755, illus., Aug. 1950. Describes briefly the stratigraphy 

and structure of the Blackfoot oil field, Anderson County, Texas.

Brant, Russell A. See Cohee, G. V. 

Brashears, Maurice Lyman, Jr.

Bibliography, geology and ground-water conditions on Long island, New York 

N. Y. Water Power and Control Comm. Bull. GW-18, p. 207-212, 1949. 

The 69 references are arranged chronologically.

Brater, Ernest Frederick.

Beach erosion in Michigan: Mich. Univ., Lake Hydraulics Lab., Research 

Pub. 2, 39 p., illus., Nov. 1,1950. General comments and notes on beach 

erosion processes, waves, currents, protective and remedial measures, 

and research at the Lake Hydraulics Laboratory, with particular attention to the problems of Michigan shore lines.

Braunstein, Jules.

Subsurface stratigraphy of the Upper Cretaceous in Mississippi, In Mississippi 

Geological Society Guidebook, Eighth Field Trip, October 13-15, 1950, 

p. 13-21, illus., 1950. . Describes the Tuscaloosa group, Eagle Ford and 

Eutaw formations, and the Selma group.

Bray, Ellis E.

(and Steveng, Nelson Pierce). The preparation of clay samples for infrared 

absorption measurement, in Infrared spectra of reference Clay minerals: 

Am. Petrol. Inst. Project 49, Clay Mineral Standards, Prelim. Rpt. 8, 

p. 73-104, July 1950.

Bredig, M. A.

Polymorphism of calcium orthosf Ifcflte f Am. Ceramic 89S, ?<"«., v. 33, no. e, 

p. 188-192, illus., June 1950. The forms of calcium orthosilicate, thefr 

crystal structure, temperature range of stability, previous designations, 

and relationships are discussed. The a' phase has been found as the 

mineral bredigite.
BIBLIOGRAPHY 43

Breger, Irving A. See Whitehead, W. L., 1.

Dressier, C. T.

Garnet deposits near Wrangell, southeastern Alaska: U. S. Geol. Survey Bull. 

963-C, p. 81-93, illus. incl. geol. maps, 1950. The sizable almandite 

garnet crystals which occur disseminated in schist north of Wrangell, 

Alaska, resulted from the intrusion of a quartz diorite stock. The 

igneous and metamorphic rocks are described. Data on the mineralogy 

and mining of the garnets is given briefly.

Bretz, J Harlen.

1. Glacial Lake Merrimac: 111. State Acad. Sci. Trans., v. 43, p. 132-136, illus., 

1950. The geologic history of glacial Lake Merrimac and glacial Lake 

Wisconsin, in the Baraboo area of Wisconsin, is outlined, with particular reference to the torrential delta formed at the head of Lake 

Merrimac by the waters of Lake Wisconsin. The Lake Merrimac delta 

is compared to a bouldery delta at the head of Franz Josef fiord, East 

Greenland.

2. Origin of the filled sink-structures and circle deposits of Missouri: Geol. 

Soc. Am. Bull-j v. 61, no. 8, p. 789-833, illus., Aug. 1950. "More than 

1,000 roofless solution cavities, filled with clay, shale, sandstone, and 

mineral and dolomitic debris, lie on the western and northern slopes 

of the Ozark dome. Of several theories of origin, the 3 favored concepts 

are: 1, original surface sink holes; 2, collapsed caves; 3, gradual subsidence of overlying rocks with solutional removal of subjacent calcareous rock. The circular cavities are collapsed caves, but concept 

(3) is esential to explain the compressiohal deformation which the fills 

and cavity walls exhibit."

Bridge, Josiah.

Bauxite deposits of the southeastern United States, in Snyder, F. G., ed., 

Symposium on mineral resources of the southeastern United States, 

p. 170-201, illus. incl. geol. map, 1950. Summarizes the results of bauxite 

investigations in Alabama, Georgia, Mississippi, Tennessee, and Virginia, made by the U. S. Geological Survey and U. S. Bureau of Mines, 

between 1941 and 1944. The deposits are classified into those of the 

Coastal Plain and of the Ridge and Valley province. Data on the age, 

deposition, source, and distribution of the bauxite, are presented and 

a theory of origin is outlined. General data on development, production, 

reserves, grades and uses, are also given.

Brill, Kenneth Gray, Jr.

Pennsylvanian correlation in south-central Colorado and northern New Mexico 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1445-1446, Dec. 1950.

British Columbia Department of Mines.

Metal-mining (lode) : British Columbia Dept. Mines Ann. Rpt. 1949, p. 59-226, 

illus. incl. geol. maps, 1950. Short geologic and mineralogic notes on 

approximately 200 mines and prospects in British Columbia. Several 

geologic maps are included^

Broadhurst, William L.

Ground-water resources of Gregg County, Texas: U. S. Geol. Survey, WaterSupply. Paper 1079-B, p. 63-105, illus., 1950. Ground water occurs 

in the Wilcox group, Carrizo sand, and Mount Selman formation, all 

of Eocene age. The strata and structure are described briefly. V. S.

Brodermann y Vignier, Jorge.

1. Significacifin estratigraJflca de los equinodermos fCsiles de Cuba: Paleontologla Cubana, I, p. 305-330, 1949. Tables show the stratigraphic 

range of the genera and species of echinoderms in Cuba.

2. Breve noticia geologica sobre una perforaci6n para petroleo en la Bahia 

de Cardenas: Bol. Historia Nat., v. 1, no. 4, p. 169-170, Dec. 1950. Brief 

note on the strata encountered in the Hicacos No. 1 well drilled 

by the Cuban Gulf Oil Co. in the Bay of Cardenas on the north shore 

of Cuba.
44 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Brodie, Gerson Herzl.

Structure-forming role of limestone reefs in eastern platform area of west 

Texas [abs.]: Oil and Gas Jour., v. 48, no. 51, p. 118, Apr. 27, 1950.

Brokaw, Arnold Leslie.

"Geology and mineralogy of the East Tennessee zinc district, in Dunham, K. C., 

ed., Symposium on. . . . lead and zinc: Internat. Geol. Gong., 18th, 

Great Britain, Rpt. pt. 7, p. 70-76, illus., 1950; abs, Volume of titles and 

abstracts, p. 42, 1948. Describes the zinc ore bodies that occur as bedding-replacement deposits and replacements along faults in the Kingsport limestone (Lower Ordovician) in the Appalachian Valley of 

northeastern Tennessee. The zinc mineral is sphalerite associated 

with dolomite, quartz, and pyrite.

Bronnimann, Paul.

The genus Hantkenina Cushman in Trinidad and Barbados, B. W. I.: Jour. 

Paleontology, v. 24, no. 4, p. 397-420, illus., July 1950. "The Hantkenina 

species of Trinidad and Barbados are described and their sh'atigTapMo 

significance disc"ussed. A new subgenus, Hantkeninella with H. primitive/, Cushman and Jarvis as subgenotype, is introduced and three 

new species, H. (Applinella) trinitatensis, H. (Hantkenina) thalmanni, 

and H. (Hantkenina) suprasuturalis are proposed."

Brooks, Benjamin Talbott.

Catalysis and carbonium ions in petroleum formation: Science, v. Ill, no. 2894, 

p. 648-650, June 16, 1950. A review of the experimental evidence from 

industrial catalytic cracking, applied to petroleum formation, indicates 

that hydrocarbon reactions involving carbonium ions and initiated by 

the catalytic action of acid silicate minerals, particularly clays, explain 

the great diversity of hydrocarbons in petroleum better than the 

mechanism of free radicals. V. S.

Broscoe, A. J.

Asymmetrically located longitudinal subsequent Streams in the Ridge and 

Valley Province of western Virginia and southern Pennsylvania [abs.] : 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1446, Dec. 1950.

Brosge, William P, See Miller, R. K, i.

Broughton, John Gerard.

Observations on the intrusion of rock salt by peridotite: Am. Geophvs Union 

TranS., V. 31, no. 2, pt. 1, p. 229-233, illus., Apr. 1950. "One'of the

narrow peridotite dikes of central New York [Ithaca area] has been 

observed Cutting rock salt at a depth of 0.4 mile. It follows one of the 

regional cross joints and is probably post-Appalachian in age. Structural relationships show mutual intrusion of the peridotite and salt and 

suggest that the temperature of the tenuous igneous magma only slightly 

exceeded the melting point of the halite."

Brown, Andrew. See Berryhill, H. L., Jr.; conee, a. v.

Brown, Annabel. See Boardman, L., 3, 6.

Brown, Carl Barrier.

Effects of soil conservation, in Applied sedimentation, p. 380-406, illuS., 1950. 

DiSCUSSeS erosion and sediment production on watersheds, the rate

and sources of sediment production, its relation to the use Of land and

water resources, and methods of control. An extensive bibliography is

given.

Brown, Donald Marvin. See Berryhill, H. L., Jr.
BIBLIOGRAPHY 45

Brown, Edwin Augustus.

Ground-water resources of Boone County, Indiana: Ind. Dept. Conserv. Div. 

Water Res. Bull. 4, 152 p. (t), illus. incl. geol. map, 1949. The ground 

water occurs chiefly in the glacial deposits which attain a thickness 

of 350 feet, although some is obtained from the Paleozoic bedrock. The 

characteristics of both the glacial deposits and the be'drock are described, and a map showing surflcial geology is included. Various phases 

of the ground-water occurrence are discussed, and well logs and 

analyses are tabulated.

Brown, Howard E. See Monnett, V. E.

Brown, Irvin Cecil. See also Henderson, J. F., 1, 2, 8.

1. Preliminary map, Reliance, Northwest Territories (map and descriptive 

notes) : Canada Geol. Survey Paper 50-15, 8 p. ($), geol. map, 1950. 

Describes the pre-Cambrian sedimentary rocks, volcanics, and intrusives in the area of Fort Reliance, at the end of the east arm of Great 

Slave Lake.

2. Preliminary map, Christie Bay, Northwest Territories (map and descriptive notes): Canada Geol. Survey Paper 50-21, 8 p. ($), geol. map, 

1950. Describes the pre-Cambrian sedimentary rocks, volcanics, and 

intrusives of the Christie Bay area, eastern Great Slave Lake region. 

The area lies West of the Reliance map-area.

3. Preliminary map, Fort Resolution, Northwest Territories (map and descriptive notes) : Canada Geol. Survey Paper 50-28, 8 p. (t), geol. map, 

1950. The map area covers the western end of the eastern arm of 

Great Slave Lake. Pre-Cambrian sediments, volcanics, and intrusives 

are described.

Brown, John Stafford.

1. Underground water in Haiti: Assoc. Internat. Hydrol. Sci., Reunion, Washington, 1939, C. R. tome 2, Comm. des Eaux Souterraines, Enquete, 

Rapport 9, 2 p. [1948?]. General comments.

2. An alternative to the hydrothermal theory of ore genesis: Internat. Geol. 

Gong., 18th, Great Britain, Rpt. pt. 2, p. 37-44, illus., 1950; abs., Volume 

of titles and abstracts, p. 4^-5, 1948. A theory of origin of ore deposits 

is formulated that relates paragenesis to specific gravity and employs 

volatilization as the chief means of transport of elements and minerals. 

The zoning achieved in blast furnace smelting is compared to paragenetic sequences in ore deposits. The concept of a single source magma 

for an ore sequence is rejected in favor of separate sources for silicates, 

oxides, and sulfides.

3. Sedimentary rocks, as hosts for ore deposits, in Applied sedimentation, 

p. 524-536, illus., 1950. A general discussion of the factors that bear 

on the development in sedimentary rocks of three types of ore deposits: 

residual concentrations, vein deposits, and replacement deposits. Specific attention is given to lead-zinc replacement deposits in limestone.

Brown, P. L.

Occurrence and genesis of trona in Sweetwater and Uinta Counties, Wyoming: 

Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, p. 136-137, 1950. 

Two deposits of calcium carbonate in Wyoming are described. They 

occur in the Westvaco area, near Green River, and in the Church Buttes 

gas field area, twenty miles to the southeast. Mineralogic data are 

reviewed and the origin is discussed.

Brown, Ralston.

(and Mead, Robert Everett). Bronte field, Coke County, Texas: Abilene Geol. 

Soc., Geol. Contr., p. 9-10, illus., 1950. Brief notes on structure and 

development of the field.

980682° 52 4
46 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Brown, Richmond Flint.

Ground water in the vicinity of Brush, Colorado: Colo. Water Conserv. Bd., 

Ground Water ser., Circ. 2, 27 p. (t), illus., Feb. 1950. The Brush area, 

Morgan County, Colorado, is underlain by Cretaceous Pierre shale, 

covered by Quaternary alluvial deposits of the South Platte River and 

Big Beaver Greek, in turn mantled by dune sands in the south. The 

dune sands are the best source of ground water. V. S.

Brown, Roland Wilbur.

1. (and Pecora, William Thomas). Paleocene and Eocene strata in the Bearpaw Mountains, Montana: Science, v. 109, no. 2837, p. 487-489, May 13, 

1949. "In summary, the evidence here submitted establishes, the 

existence in the Bearpaw Mountain region of coal-bearing strata of the 

Fort Union formation (Paleocene); Of variegated and conglomeratic 

strata of the Wasatch formation (early Eocene); and of volcanic rocks 

of probable middle Eocene age."

2. Ecology of nonalgal marine plants: Natl. Research Council, Report of the 

Committee on a treatise on marine ecology and paleoecology, 1948-1949, 

no. 9, p. 105-110, Dec. 1949. The spread of land plants along shores of 

salt-water bodies, and even into brackish and marine waters, is discussed briefly;- their usefulness in ecologic studies is indicated; and 

an annotated bibliography is given. V. S.

3. Cretaceous plants from southwestern Colorado: U. S. Geol. Survey Prof. 

Paper 221-D, p. 45-66, illus., -1950. "In southwestern Colorado a 

sequence of strata between the Jurassic carnotite-bearing Morrison 

formation (McElmo) and the0 Upper Cretaceous marine Mancos shale 

contains fossil plants that are described here and used for determining 

the most likely position of the Lower Cretaceous-Upper Cretaceous 

boundary. The plants fall into two groups . . . indicating Lower 

Cretaceous age, and . . . early Upper Cretaceous. The boundary is 

probably at the top of the unit that Coffin called Post-McElmo and at 

the base of his overlying Dakota."

4. Cretaceous fish egg capsule from Kansas: Jour. Paleontology, V. 24, no. 

5, p. 594-600, illus., Sept. 1950. Describes the first fossilized sharklike 

egg case from Cretaceous strata in Kansas and the youngest spirallytwisted kind reported from anywhere. Associated land plants suggest 

an early Late Cretaceous age. V. S.

5. An Oligocene evergreen cherry from Oregon: Washington Acad. Sci. Jour., 

v. 40, no. 10, p. 321-324, illus., Oct. 15, 1950. Describes a new species, 

Prwws pristina, occurring in nonmarine Oligocene beds near Sweet 

. Home, Oregon, and associated with species of sequoia, hydrangea, laurel, 

sycamore, and sweetgum. Tfie specimens appear to be the first on record 

of the evergreen group to show glands within the blades of the leflVCS,

Brown, William Randall.

The Piedmont province, in The James River Basin, past, present and future, 

p. 482-497, Va. Acad. SCl., 1950. pescribes briefly the igneous, sedimentary, and metamorphic rocks, the structure, geologic history, and

mineral resources, of the Piedmont province in Virginia.

Brownell, George McLeod.

1. Prospecting with a scintillorneter: Precambrian, v. 23, no. 3, p. 23-29, illllS,, 

Mar. 1950. FOUr radiation Surveys over pitchblende veins in Saskatchewan are described to illustrate the US6 Of the SCintillODieter 1U exploring 

for radioactive deposits. The principle of the instrument distinctive 

features Of reSllltS, antl advantages over the Geiger counter are 

discussed. V. S.

2. Radiation surveys with 'a scintillation counter: Econ. Geology, v. 45, no 2, 

p. 167-174, illus., Mar.-Apr. 1950. Tfie Scintillation counter, a new 

i^oteiaTnent £Or radiation surveys more effective than the Geiger counter, is described, and Its use is muBti-wv-* *>r *° **»^ «wveys over Ditchblende deposits in Saskatchewan. Possible causes' fif FHQlOacUYO 

anomalies are discussed. V. S.
BIBLIOGRAPHY 47

Bruce, Clemont Hughes.

Geology of the Utica oil field: Ky. Geol. Survey Bull. ser. 9, no. 1,14 p., illus., 

1949. The structure and stratigraphy of the Utica field in western 

Kentucky is described. Production is obtained from five horizons in 

Mississippian strata. Oil accumulation is controlled by both structure 

and lithology.

Bruce, V.

Graphical method for solving vibration problems of a single degree of freedom 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1543-1544, Dec. 1950.

Bruet, Edmond.

La Soufri&re de la Guadeloupe; contribution a l'e"tude des 4difices volcaniques 

pele'ens: Annales de Ggophysique, tome 6, no. 1, p. 51-64, illus., 1950. 

The examination of the Soufriere volcano in Guadeloupe, West Indies, 

makes doubtful the existence of a "dome" in pelean structures.

Brundall, Laurence.

(and Wasem, Adam Richard). Photogeology's place in petroleum exploration, 

Parts 1-2: World Petroleum, v. 21, no. 3, p. 51-54, illus., Mar. 1950; 

no 4, p. 41-44, illus., Apr. 1950. The application of aerial photography 

to geologic mapping and interpretation in petroleum exploration is 

discussed and illustrated by photographs and contour maps. V. S.

Brunette, C. E. See Risi, J.

Bryan, Joseph Jefferson. See Hazzard, J. C., 1, 4.

Bryan, Kirk, 1888-1950.

1; (arranger). Symposium on geomorphology in honor of the 100th anniversary of the birth of William Morris Davis: Assoc. Am. Geographers 

Annals, v. 40, no. 3, p. 171-236, illus., Sept. 1950. The symposium was 

held at Clark University, Worcester, Mass., April 6, 1950. Papers by 

Lawrence Martin, C. A. Cotton, Henri Baulig, Kirk Bryan, A. N. Strahler, 

and L. 0. Peltier, were presented.

. 2. The place of geomorphology in the geographic sciences: Assoc: Am. Geographers Annals, v. 40, no. 3, p. 196-208, Sept. 1950. The relation of 

geomorphology to both geology and geography is discussed. A section 

on the training of geographers is included, with discussion by G. H. 

Smith.

Bucher, Walter Hermann.

1. The crust of the earth: Sci. Am., v. 182, no. 5, p. 32-41, illus., May 1950. 

Changes in fundamental conceptions of the deep crust, brought about 

by new methods .of geophysical and geological investigation, are summarized. Consideration is given to the structure of continents and 

ocean basins, formation of continents, process and significance of granitization, and the Atlantic Ocean Basin. V. S.

2. Megatectonics and geophysics: Am. Geophys. Union Trans. v. 31, no. 4, 

p. 495-507, Aug. 1950. The development of three basic concepts is 

considered: (.1) geosynclines as loci of erogenic deformation, (2) ultramafics as initial products of orogeny, and (3) metamorphism and granite 

as products of mature orogeny. Synthesis of relations implied in these 

concepts leads to considering orogeny as the fundamental factor in 

the dynamics of the earth's crust.

sBuckham, A. F.

1. (and Latour, B. A.). The Groundhog coalfield, British Columbia: Canada 

Geol. Survey Bull. 16, 82 p., illus. incl. geo'l. map, 1950. The Groundhog 

coalfield, Cassiar District, British Columbia, is underlain by folded 

Upper Jurassic and Lower Cretaceous rocks of the Hazelton group, 

which contain anthracite interbedded with sandstone, shale, and conglomerate. Stratigraphy, structure, and coal occurrences are described, 

and columnar sections, geologic map, and coal analyses are given. V. S.
48 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Buckham. A. F. Continued

2. (and Cockfield, William Egbert). Gullies formed by sinking of the: ground: 

Am. Jour. Sci., v. 248, no. 2, p. 137-141, Feb. 1950. W. W. Rubey's theory 

of gully formation in semi-arid regions is supported by the authors' 

observations of gullies and sinkholes in Pleistocene silts at Kamloops, 

British Columbia. The holes are apparently formed by the washing 

out of fine subsurface material, development of tunnels, and caving, as 

postulated in the theory. V. S.

Buddenhagen, H. J.

Oregon, in Symposium on possible future oil provinces of the Pacific Coast 

region [abs.] : Am. Assoc. Petrol. Geol. Bull., v. 34, no. 12, p. 2382, 

-Dec. 1950.

Buddhue, John Davis.

1. Meteoritic dust: N. Mex. Univ. Pub. Meteoritics no. 2, 102 p., illus., 1950. 

The discussion includes sections on previous work, methods of collecting 

dust, types and size of particles, physical and chemical tests, origin, 

rate of fall, annual variation, -and other aspects. A bibliography is 

included.

2. New chemical analyses of the Canyon Diablo, Arizona, and Arispe, Sonora, 

Mexico, siderites: Pop. Astronomy, v. 58, no. 4, p. 190, Apr. 1950; 

Meteor. Soc. Contr., v. 4, no. 4, p. 258-259,1950.

3. Radioactivity of Sweetwater agates: Mineralogist, v.-18, no. 10, p. 458-459, 

Oct. 1950. The fluorescent agates with yellow inclusions, from Sweetwater, Wyoming, are tested with a Geiger counter and show 300-350 

average counts per minute.

4. Synthetic schreibersite: Pop. Astronomy, v. 58, no. 8, p. 405-407, Oct. 1950; 

Meteor. Soc. Contr., v. 4, no. 4, p. 290-291, 1950. "A simple preparation 

of two synthetic nickel-iron phosphides is described. One has the physical properties and chemical composition of schreibersite. The other 

is non-magnetic, is almost insoluble in acids, and has an analysis similar 

to three anomalous analyses of phosphide from the Canyon Diablo, 

Arizona, siderites."

Buddingtoh, Arthur Francis.

Composition and genesis of pyroxene and garnet related to Adirondack anorthosite and anorthosite-marble contact zones: Am. Mineralogist, v. 

35, DOS. 8-10, p. 659-670, illus., Sept.-Oct. 1950. "The genesis of some 

pyroxenes and garnets related to Adirondack anorthosite, anorthositemarble contact zones and their metamorphic equivalent are discussed 

on the basis of 10 clinopyroxenes whose chemical analyses as related

to optical properties have recently been presented by H6SS, and UPOD

one new orthopyroxene analysis and 7 new garnet analyses given here."

Buerger, Martin Julian. See also Donnay, G. H.; Washken, E.

1. Vector sets ; Acta Orystallograpluca, v. 3, pt. 2, p. 87-97, illus., Mar. 1950:

correction, pt. 3, p. 243, May 1950. The theory of vector sets, the set 

of points at the ends of vectors between the points of the fundamental 

set, and their relations to the fundamental set are discussed. The 

space groups of the two sets are compared. The application of the 

theory of vector sets to the solving of a crystal structure is shown.

2. The crystallographic symmetries determinable by X-ray diffraction: Na°tl 

Aoad. Sci. Proc., v. 36, no. 5, p. 324-329, May 1950.

3. Some new functions of interest in X-ray crystallography: Natl. Acad. Sci.

Proc., v. 36, no. 7, p. 376-382, illus., July 1950. The discussion of th& 

theory of vector sets (Acta Crystallographica, v. 3, pt. 2, p. 87-97, Mar. 1950) Is continued ana extended to sets or weighted points and to

density maps.

4. Tables of the characteristics of the vector representations 01 the 230 space

groups: Acta Crystallographica, v. S, pt. 6, p, 465-471, Nov. 1950.

5. Crystallographic symmetry in reciprocal space and in vector space [abs.] :

Am. Mineralogist, v. 35, nos. 1-2, p. 122, Jan.-Feb. 1950.

6. General aspects of disorder in minerals [abs.]: Am. Mineralogist, v. 35, 

nos. 3-4, p. 278-279, Mar.-Apr. 1950.

7. Photographs of the atoms in the structures of minerals [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1446, Dec. 1950.
BIBLIOGRAPHY 49

Buffam, Basil Scott Whyte.

The Precambrian Shield: Canadian Min. Met. Bull. no. 454, p. 91-93, Feb. 1950. 

Discussion of the Institute Jubilee Volume, Structural geology of 

Canadian ore deposits.

Buford, Thomas Bernard. See Jones, P. H.

Buie, Bennett Frank.

(and Robinson, Gilbert C.). The distribution and properties of the shales of 

South Carolina: S. C. Research Plan. Dev. Bd. Bull. 19, 58 p., geol. 

sketch map, 1949. The geographic and geologic distribution of shales 

in South Carolina are briefly described. The major part of the article 

is devoted to the results of laboratory testing of the ceramic properties 

with a view to the development of the shales for use in structural 

products.

Bullock, Kenneth C.

Experiments in low-angle thrusting: Utah Acad. Sci. Proc., v. 25, p. 135-143, 

illus., 1948. Describes briefly the apparatus, materials, and nature of the 

experiments. Various mixtures of sand, clay, and plaster of paris, 

arranged in competent and incompetent layers, were subjected to horizontal pressures. The results are discussed and conclusions reached on 

the influence of bedding planes and the competency of strata.

Bulman, Oliver Meredith Boone.

1. Graptolites from the Dictyonema shales of Quebec : Geol. Soc. London Quart. 

Jour., v. 106, pt. 1, no. 421, p. 63-99, illus., 1950. Describes in detail 

graptolitic material contained in several collections from the vicinity 

of Matane, Quebec, along the south shore of the St. Lawrence River.. 

A new family, the Anisograptidae, to include the genera Anisograptus, , Bryograptus, Staurograpttis, Triograptus, Radiograptus, Clonograptus, 

and Adelograptus, formerly in the Dichograptidae, is set up under the 

Dendroidea. Five new species of Dictyonema are described. The fauna 

is considered of Tremadoc (Cambrian) age.

2. The structure and relations of Cyclograptul Spencer: Jour. Paleontology, 

v. 24, no. 5, p. 566-570, illus., Sept. 1950. "The species Cyclograptus 

rotadentatus Spencer is redescribed on the basis of syntype material!. . . and the relations of the genus Cyclograptus are discussed. 

It is confirmed that the genus is closely related to Galeograptus Wiman 

and should be placed with that genus and Discograptus Wiman in 

Kozlowski's Family Idiotubidae, (Order, Tuboidea)."

Bunte, Arnold S. See Kaufmann, G. F.

Buranek, Alfred M. See also Crawford, A. L., 1, 3.

Fluorite in ilJtah, its occurrence, extent, and significance to Utah industry: 

Utah Dept. Pub. and Indus. Dev. Circ. 36, 25 p. (t), map, Dec. 1948. 

Deposits occur as groups of veins or masses related to igneous intrusions 

and are found mainly in the districts of Topaz Mountain, Wildcat 

Mountains, and Indian Peak and Wah Wah Range, in the western 

counties. Occurrences in these districts and elsewhere and fluorite 

economics are described. V. S.

Burbank, Wilbur Sw.ett.

1. Problems of wall-rock alteration in shallow volcanic environments, in Applied geology, a symposium: Colo. School of Mines Quart., v. 45, no. IB, 

p. 287-319, illus., Jan. 1950. The origin and characteristics of the two 

types of rock "alteration, sericite-quartz and clay mineral-quartz, associated with ores and volcanic rocks in several Colorado mining districts, 

are discussed. Alteration as a guide to ore is evaluated and it is concluded that clay-type alteration effects in themselves are not indicative 

in shallow volcanic environments.

2. [Discussion of alteration and its application to ore search], in Applied 

geology, a symposium: Colo. School of Mines Quart., v. 45, no. IB, p. 322, 

324-325, Jan. 1950.
50

Burchard, Ernest Francis. e

Memorial to William Clifton Phalen [1877-1949] : Geol. Soc. Am. Proc. 1949, 

p. 213-216, port., June 1950.

Bureau, Rene.

Monseigneur Joseph-Clovis K.-Laflamme, gSologue [1876-1910]: Naturaliste 

Canadien, v. 77, nos. 7-8, p. 185-221, July-Aug. 1950.

Burgess, Laurie R., d. 1951.

Instrumental notes: Earthquake Notes, v. 21, no. 3, p. 22-23, Sept. 1950. Notes 

on the adjustment of the spot focus and- its importance in the production 

of readable seismograms.

Burkhardt, W. See Wheeler, G. V. 

Burns, Ruth N. See Cohee, G. V.

Burr, Alexander C.

(and Magnusson, Adelynn). Sulphur in North Dakota fipite: N. Dak. Acad.

Sci. Proc., v. 4, 1950, p. 49-52, Nov. 1950. Continuation of the original 

study by Magnusson reported in the Proceedings, v. 3, p. 18-21, 1950. 

The average sulfur content of North Dakota lignite, on the basis of 

1017 samples, ranges from 0.4 to 7.5 percent, with a mean of 1.0 percent. 

The determinations are tabulated by counties. The distribution of 

sulfur by form, that is, organic, sulfate, and pyritic, is tabulated for 

17 samples.

Bursch, Jacobus George.

The range chart as an aid in foraminiferal correlation: Jour. Paleontology, 

v. 24, no. 4, p. 479-481, illus., July 1950. Criteria for recognition of 

horizons of marked faunal change and their relative significance in 

stratigraphy are discussed. Particular associations of criteria may 

provide reliable markers where a single criterion does not. The usefulness of a range chart depends largely on the arrangement, which 

must take into account such factors as sedimentary sequence, kind 

of collecting, and speed of the investigation.

Burton, R. P.

Composite Schlumberger electric log, western Green River Basin [Wyo.] : Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, 1950. .

Burwell, Edward Bouldin, Jr.

1. (and Roberts, George Daniel). The geologist in the engineering organization, in Application of geology to engineering practice, Berkey Volume, 

p. 1-9, Geol. Soc. Am., New York, 1950. Outlines the status, qualifications, functions, and responsibilities of the geologist in engineering

work,

2. (and Moneymaker, Berlen Clifford). Geology in dam construction, m 

Application of geology to engineering practice, Berkey Volume, p. 11 43, 

illus., Geol. Soc. Am., New York, 1950. Discusses the geological problems 

encountered in the location and construction of dams and their solution. 

The problems are considered according to the type of rock shales, 

sandstones, volcanic, metamorphic, limestone, etc. because each presents 

special factors.

Burwell, Howard Beirne.

Brown phosphate rock in Tennessee, w'Snyder, F. G., ed., Symposium on

mineral resources of the southeastern United States, p. 128-131, 1950.

The character, occurrence, distribution, and factors controlling the 

accumulation of brown phosphate in central Tennessee are discussed.

Busch, Daniel Adolph.

Subsurface techniques, in Applied sedimentation, p. 559-573, mus., 1950. Describes the various techniques that are used in exploration for oil. 

Among these are well logs of several types, cores, heavy minerals, 

micropaleontology, and lithology.
BIBLIOGRAPHY 51

Bush, Robert E.

(and Mardock, E. S.)- Some preliminary investigations of quantitative interpretations of radioactivity logs: Jour. Petrol. Tech., v. 2, no. 1, p. 19-34, 

illus., Jan. 1950; A. I. M. E. Trans., v. 189,1950. Quantitative interpretation methods are described in the light of the theory of radioactivity 

logging and the physical processes determining logs, and applications 

are made to logs of the Smackover limestone of Louisiana, Edwards 

limestone and dolomite of southern Texas, and Permian dolomites of 

western Texas. V. S.

Bushnell, Thomas Mark. -

Pedological and geological connotations in Indiana [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1564, Dec. 1950.

Buss, Walter Richard.

Solution weathering in southwestern Utah [abs.]: Utah Acad. Scl. Proc., 

v. 25, p. 182, 1948.

Buswell, A. M.

(and Suter, Max, and Hudson, H. E., Jr.). Chicago area water supply; 1, 

The ground water conditions in the region: Midwest Engineer, v. 2, 

no. 6, p. 6-9, illus., Feb. 1950; 111. State Water Survey Div., Circ. 29,1950. 

Brief comments on the aquifers of the Chicago area and the amount of 

available ground water.

Butcher, W. S. See Poole, D. M,

Butler, Bert Sylvenus.

1. A tribute to the early workers in Colorado, in Applied geology, a symposium: 

Colo. School of Mines Quart., v. 45, no. IB, p. 193-195, Jan. 1950. A 

brief review of early geologic work in Colorado, listing those who were 

connected with it.

2. Metasomatic alteration along veins, in Applied geology, a symposium: Colo. 

School of Mines Quart., v. 45, no. IB, p. 275-279, Jan. 1950. Brief comments on the development of ideas on rock alteration, with reference 

x to earlier work in the field.

3. [Discussion of alteration and its application to ore search], in Applied 

geology, a symposium : Colo. School of Mines Quart., v. 45, no. IB, p. 284, 

342-343, Jan. 1950.

4. Memorial to Waldemar Lindgren [1860-1939]: Geol. Soc. Am. Proc. 1949, 

p. 177-196, port., June 1950.

Butler, R. G. See Fix, P. F.

Butler, S.

Formation of limonite tubes: Rocks and Minerals, v. 25, nos. 1-2, p. 55, Jan.-

Feb. 1950. The concentric banding observed in cross-sections of saud-

. limonite tubes suggests formation by deposition from iron-bearing

solutions in channels in the sand. V. S.

Butterlin, Jacques.

1. Contribution a 1'etude de la geologie de la bordure sud du Cul-de-Sac (Haiti, 

Grandes Antilles) : Rev. Soc. Haitienne Hist. G6og. Geol., v. 21, no. 

76, p. 1-80, illus. incl. geol. map, Jan. 1950. A general summary of the 

geology of Haiti is followed by a study of the stratigraphy and fossils 

of the southern Cul-de-Sac plain, in its western part bordering on 

Port-au-Prince Bay. The distribution of the Oligocene and Miocene 

sediments is discussed and shown on a map, and a bibliography is 

appended; V. S.

2. Note au sujet du cours de la Riviere Artibonite (Haiti, Grandes Antilles) : 

Rev. Soc. Haitienne Hist. Geog. Geol., v. 21, no. 79, p. 11-12, Oct. 1950. 

Evidence pointing to the capture of the Artibonite River by the West 

River, Haiti, is discussed.
52

Byerly, Perry. See also Thomas, R. P.

1. (and Evernden, Jack F.). First motion in earthquakes recorded at 

Berkeley: Seismol. Soc. Am. Bull., v. 40, no.-4, p. 291-298, illus., Oct. 

1950. Data on the initial motion of the earthquakes in the circumpacific region, recorded at Berkeley,«California, during 1938-48, were 

assembled and studied with a view to distinguishing those north or 

south of Berkeley. By also taking depth of focus into account, a pattern 

could be found. The distribution of condensations and dilatations depends on the orientation of the local faults and the direction of movement on them.

2. (and Evernden, Jack F.). False S [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1544, Dec. 1950.

3. (and Eaton, Jerry). Slow surface waves [abs.] : Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1544, Dec. 1950.

Byram, John Perkins.

Alexander-Myatt area of eastern Jones County, Texas; Abilene Geol. Soc., 

Geol. Contr., p. 1, illus., 1950. Brief notes on petroleum occurrence 

in the area.

Byrne, Frank Edward.

1. Maps for construction materials: Highway Research Board Bull. 28, p. 63- 

72, illus., 1950. Defines and describes three types of construction 

material maps : (1) material-site maps, (2) material-distribution maps, 

and (3) surface-geology maps. The maps are compared, and their usefulness to the engineer is evaluated.

2. (and Houston, Max Sherman, and Mudge, Melville R.). Construction materials in Jewell County, Kansas: U. S. Geol. Survey Circ. 38, 21 p. ($). 

illus. incl. geol. map, May 1950. The areal distribution, character, and 

thickness of the formations, Upper Cretaceous through Recent in ago, 

which crop out in Jewell County, Kansas, are described, with indication 

of the construction materials present in each. An inventory of the 

various construction materials lists engineering and geologic characteristics, stratigraphic sources, and test data. V. S.

3. (and others). Geologic construction-material resources in Republic 

County, Kansas: U. S. Geol. Survey Circ. 79, 2O p. (t), illus. incl.'geol. 

map, July 1950. The construction-material resources of Republic 

County, Kansas, include aggregate for concrete, road metal, mineral 

filler, volcanic ash, riprap, and Structural stone in Upper Cretaceous, 

Pleistocene, and Recent formations. The outcropping units are 'described and mapped, and an inventory is given of the materials found 

in each, with indication of their geologic and performance characteristics. V. S.

4. (and others). Construction materials in Decatur County, Kansas; u. s.

Geol. Survey Circ. 40, 11 p. (t), illus. incl. geol map, Aug. 1950. The 

strata of Pliocene through Recent age, outcropping in Decatur Countv

Kansas, are mapped and described briefly, and the construction materials

present in each are indicated. The materials-aggregate for-concrete,

road metal, mineral filler, volcanic ash, riprap, structural stone, and

calcareous binder are inventoried as to- engineering and geologic

oHrn-ncteristics. stratisrrnr>hie sources, and test data. V. S.

Byrne, N.W,

The Discovery Yeiiowknife gold mine, GiatiQue Lake, Yellowknife minillg

area, N. W. T.: Precambrian, v. 23, no, 2, p. 5-12, IT, mua, mci. 5eoi.

si*, mar,. Feb 1950. The gold quartz vein, discovered in 1944, is located in an area of sediments comprising a eenes o* steoPiy Wr^s «rey. 

, tuffs, and argiiiites, with minor intrusives and extrusives,

geOlOgy ftn<J mining development are described. V. S. 

C»tly, GiVbert Haven.

Research in coal geology: Min. Eng., V. 1ST, HO, 2, p, 2TO-2T8, F6D, 1900; 

A. I. M. E. Trans., v. 187, 1950. Describes the six phases of research 

in coal geology: resources investigations; coal mining geology; origin 

of coal; coal botany and paleobotany; coal petrography; and coal geochemistry. Attention is called to the activity in coal research of the 

Society of Economic Geologists.
BIBLIOGRAPHY 53

Cady, Wallace Martin.

1. Fossil cup corals from the metamorphlc rocks of central Vermont: Am. Jour. 

Sci., v. 248, no. 7, p. 488-497, illus., July 1950.. Cup corals, tentatively 

identified as Streptelasma, and therefore suggesting Middle Ordovician 

age, are reported from phyllite interbedded with Waits River limestone at several localities near Montpelier, Vermont. The corals are 

described, and their petrographic and structural relationships are 

discussed.

2. Classification of geotectonic elements: Am. Geophys. Union Trans., v. 31, 

no. 5, pt. 1, p. 780-785, illus., Oct. 1950. The spatial relationships of 

geotectonic elements continental blocks, oceanic basins, geosynclines, 

and shelves and their evolution are reviewed in the light of existing 

literature, with attention to nomenclature, to aid an understanding 

of the origin and distribution of various types of rocks and mineral 

deposits. V. S.

3. (and McKelvey, Vincent Ellis, and Wells, Francis Gerritt). Geotectonic 

relationships of mineral deposits tabs.]: Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1447, Dec. 1950.

Caldwell, Joseph M.

Sedimentation in harbors, in Applied sedimentation, p. 291-299, 1950. Harbors 

are classified into five types and the engineering and economic aspects 

of sedimentation problems encountered in each type are discussed. 

Methods of controlling shoaling are listed and the field of future 

investigations is outlined.

Caldwell, William E.

(and Waterman, George H.). A northwest strontium mineral deposit: Sci. 

Monthly, v. 70, no. 4, p. 267-270, illus., Apr. 1950. Describes a vein 

deposit of strontianite and celestite in dunite on Fidalgo Island, Puget 

Sound, Washington, with respect to geology, mineralogy, and economic 

aspects. The deposit has recently been opened for mining. V. S.

Caley, John Fletcher. 

(and Liberty, B. A.). Preliminary maps, Orillia-Brechin and Beaverton, 

Ontario "(two maps and descriptive notes) : Canada Geol. Survey Paper 

50-11, 7 p. ($), geol. maps, 1950. The adjacent Orillia-Brechin and 

Beaverton areas north of Toronto, Ontario, are underlain mainly by 

the Trenton and Black River formations of Ordovician age. The rocks 

are mapped and described, with-notes on structure, fossils, glaciation, 

and economic possibilities. V. S.

California Division of Mines, Staff.

Mineral commodities of California; geologic occurrence, economic development, and utilization of the State's mineral resources: Calif. Dept. Nat. 

Res. Div. Mines Bull. 156, 443 p., illus., Aug. 1950. Nineteen authors 

have contributed summary articles covering more than seventy minerals. 

Statistical summaries of mineral production for 1948, county mineral 

production for 1948, and a directory of mineral producers are included.

California Research Corporation, La Habra Laboratory.

Particle size determinations, in Analytical data on reference clay minerals: 

Am. Petrol. Inst. Project 49, Clay Mineral Standards, Prelim. Rpt. 7, 

p. 129-133, July 1950.

California University, Institute of Transportation and Traffic Engineering.

(and U. S. Geological Survey). Selected logs of borings in the City and 

County of San Francisco, California: Calif. Univ., Inst. Transportation 

and Traffic Engineering, Inf. Circ. 11, 240 p., map, Dec. 1950. Graphic 

record of 437 borings. An index map shows locations.

Calvache Suarez, Guido.

Las posibilidades de hallar yacimientos petroliferos en Cuba: PetrSleo Interamericano, v. 8, no. 3, p. 26-28, illus., Mar. 1950; PetrSleos Mexicanos, 

no. 79, p. 80-84, illus., Mar. 1950. The possibility of finding petroleum 

in Cuba is discussed. Limestone as a source rock and favorable structures make deep deposits possible. Limited shallow production is 

obtained from three fields, and surface oil shows are found. V. S.
54

Cameron, Eugene Nathan. .

1. (and Green, Lewis H.). Polarization figures and rotation properties in 

reflected light and their application to the identification of ore minerals : 

Econ. Geology, v. 45, no. 8, p. 719-754, illus., Dec. 1950; preliminary 

note, no. 3, p. 252-253, May 1950. Conoscopic observation of opaque 

ore minerals between crossed nicols in reflected light shows two basic 

types of polarization figures characteristic, respectively, of isotropic 

and anisotropic minerals. Three properties of isotropic and six properties of anisotropic minerals can be determined from these figures. 

Procedures for analysis are described, and the results of observations 

for a group of about 40 minerals are given.

2. Intrusion and granitization in the Bryson City area, North Carolina, and 

their relation to region deformation [abs.]: Geol. Sbc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1448, Dec. 1950.

Cameron, Harcourt L.

1. Faulting in the vicinity of Halifax, Nova Scotia: Nova Scotian Inst. Sci. 

Proc., v. 22, pt. 3, p. 1-15, illus., 1948-1949. Eleven major faults or 

fault systems cutting the Meguma Series (pre-Cambrian) and Devonian 

granite near Halifax, Nova Scotia, are outlined. The faulting is post 

Early Devonian, and probably pre-Carboniferous. The study is based 

on interpretation of aerial photographs.

2. Glacial geology of the Yarmouth-Pubnico area, Nova Scotia [abs.]: Nova 

Scotian Inst. Sci. Proc., v. 22, pt. 3, p. 44-45,1648-1949.

Cameron, J. R.

1. (and King, L. H.). Dolomite deposit, Upper Mosquodoboit: Nova Scotia 

Dept. Mines Ann. Rpt. 1949, p. 111-118, illus. incl. maps, 1950. In the 

Upper Musquodoboit Valley, Halifax County, Nova Scotia, dolomite 

is the predominant rock of the Carboniferous Windsor series. A brief 

description, maps, cross sections, and chemical composition are given.

V. S.

2. The New Ross area: Nova Scotia Dept. Mines Ann. Rpt. 1949, p. 119-127, 

illus. incl. maps, 1950. Describes a general geological reconnaissance 

of the New Ross area, Lunenburg County, Nova Scotia, with particular 

attention to radioactive indications, pegmatite dikes, and other mineralized zones. Several specific localities are mentioned,

Campbell, Charles Duncan. See also Conybeare, C. E. B., 3.

Petrology of the Columbia River basalts; present status and ideas for future 

work: Northwest Sci., v. 24, no. 2, p. 74-83, May 1950. Petrographic 

data on the basalts are summarized; chemical analyses are given; and 

data on the lava temperatures are presented. Suggestions for future 

petrographic and chemical investigations are made.

Campbell, Francis Faulkner.

1. Geological dimension chart: Am. Assoc. Petrol. Geol. Bull., T. 34, no. 8,

p. 452-454, illus., Mar. 1950 The chart gives the relationship of true 

thickness and dip of a bed, graduated in steps of 100 to,2,000 feet 

and 5°, respectively, to apparent thickness in a well and width of outcrop. 

Examples illustrate applications. . V. S.

2. The Fort Cobb anticline, a geophysical case .history: Geophysics, v. 15, no. 4, 

p. 585-604, illus., Oct. 1950; abs., Oil and Gas Jour., v. 48, no. 51, p. 120, 

Apr. 27, 1950. Seismic reflection data, cross-sections, and structure 

maps are presented for the Fort Cobb anticline in southwestern Oklahoma. Although two hundred feet of closure is indicated, drilling in 

the Hoxbar and Deese (Des Moines) has shown no oil down to 17,800

feet. V. S.

Campbell, lan.

1. Magnesium metasomatism in dolomite from Lucerne Vaiiey, California:

Internat. Geol. Gong-. 18th, Great Britain, Rpt. pt. 3, p. 118-124, geol. 

sketch map, 1950; abs., Volume of titles and abstracts, p. 12, 1948. An

outcrop of brucite-marble resembling predazzite, intruded by bfotJte- 

 tonalite and garnet-aplite dikes, forms an isolated rock-knob on the 

desert surface at Lucerne Valley, California. The occurrence is described petrographically, compared with similar ones, and the origin, 

age, and introduction of magnesia are discussed.
BIBLIOGRAPHY 55

Campbell, lan Continued

2. (and Schenk, Edward Theodore). Camptonite dikes near Boulder Dam, 

Arizona: Am. Mineralogist, v. 35, nos. 9-10, p. 671-692, illus., Sept.-Oct. 

1950. The -camptonite dikes are characterized by large ainphibole 

phenocrysts formed essentially in place. Serpentinization of olivine, 

formation and size of amygdules, and the growth of the phenocrysts 

are related to distribution of volatiles in the dike magma. Chemical 

analyses of the amphibole and the chilled margin of the dike are given 

and discussed.

3. (and Wright, Lauren Albert). Kyanite paragenesis at Ogilby, California 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1520-1521, Dec. 1950.

Campbell, Neil. .

* The Middle Devonian in the Pine Point area, N. W. T.: Geol. Assoc. Canada 

Proc., v. 3, p. 87-96, Dec. 1950; abs., Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 11, p. 2252, Nov. 1950. The stratigraphy and structure' of the 

Slave Point limestones and Presqu'ile dolomites in the vicinity of Pine 

Point, on the south shore of Great Slave Lake, are described. Both 

formations are Middle Devonian in age and it is thought that the 

Presqu'ile formation represents a reef deposit. The occurrence of 

gypsum, sulfur, chert, and bitumen is mentioned.

Campbell, Orton E.

The four types of petroleum hydrocarbon curves in drill holes: World Oil, 

v. 130, no. 1, p. 72, illus., Jan. 1950. Fluorologs of wells "show that the 

hydrocarbon curve on a drill hole is characteristic of its position relative 

to an oil accumulation, and that there are four types of hydrocarbon 

curves." V. S.

Canada Department of Mines and Technical Surveys, Radioactivity Division, 

Mines Branch, The Staff.

Analysis of uranium ores by Geiger methods: Canadian Min. Met. Bull. no. 

460, p. 461-464, illus., Aug. 1950; Canadian Inst. Mining and Metallurgy 

Trans., v. 53, p. 312-315, 1950. The apparatus and procedure in three 

methods are described. ~

Canada Geological Survey.

F

1. Arnprior, Ontario-Quebec, aer.omagnetic series, No. 31-r '. Scale 1:63,360

or 1 inch to 1 mile. [1950]. pi

2. Bancroft, Ontario, aeromagnetic series, No. 31 . Scale 1: 6*3,360 or 1

4

inch to 1 mile. [1950].

Q

3. Bannockburu, Ontario, aeromagnetic series, No. 31:rr. Scale 1: 63,360 of

1 inch to 1 mile. [1950].

4. Brochet, Manitoba. Map 1001-A. Scale 1: 253,440 or 1 inch to. 4 miles. 

1950. Geologic map, with descriptive notes by N. R. Gadd. The area 

is in western Manitoba, bordering Reindeer Lake, and is characterized 

by pre-Cambrian igneous and metamorphic rocks.

C

5. Campbellford, Ontario, aeromagnetic series, No. 31 . Scale 1:63,360 or

o

1 inch to 1 mile. [1950]. F1

6. Carleton Place, Ontario, aeromagnetic series, No. 31^-. Scale 1: 63,360 or

1 inch to 1 mile. [1950]. .

7. Preliminary aeromagnetic map, Clericy, Abitibi and T6miscamingue Counties, Quebec: Canada Geol. Survey Paper 50-35, 1950.

C

8. Coe Hill, Ontario, aeromagnetic series, No. 31y£. Scale 1: 63,360 or 1 Inch .

to 1 mile. [1950],

9. Crowduck Bay, Manitoba. Map 987-A. Scale 1: 63,360 or 1 inch to 1 mile. 

1950. Geologic map with descriptive notes. The area is in western 

Manitoba, and is characterized by pre-Cambrian igneous and metamorphic rocks. A few outliers of Ordovician dolomite have been mapped.
56 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Canada Geological Survey Continued

10. Preliminary aeromagnetic map, Desboues, Abitibi County, Quebec: Canada 

Geol. Survey Paper 50-31, 1950.

11. Fiedmont, Quebec. Map 999-A. Scale 1: 63,360 or 1 inch to 1 mile. 1950. 

Geologic map, with descriptive notes by L. P. Tremblay. The area is 

one of pre-Cambrian rocks.

12. Kemptville, Ontario, aeromagnetic series, No. 31 j-. Scale 1:63,360 or 1

inch to 1 mile. [1950].

13. Preliminary aeromagnetic map, Kinojevis, Te'miscamingue and Abitibi 

Counties, Quebec: Canada Geol. Survey Paper 50-32, 1950.

14. Lake Simcoe district, Ontario. Map 992-A. Scale 1:126,720 <or 1 inch

to 2 miles. 1950. Map shows bedrock outcrops and Pleistocene glacial 

deposits'.

15. Lake Simcoe district, Ontario. Map 993-A. Scale 1:126,720 or 1 inch 

tox2 miles. 1950. Map shows physiographic divisions.

16. Preliminary aeromagnetic map, Macamic, Abitibi County, Quebec: Canada 

Geol. Survey Paper 50-30, 1950.

T>

17. Merrickville, Ontario, aeromagnetic series, No. 31 . Scale 1:63,360 or

1 inch to 1 mile. [1950].

18. Mulgrave, Nova Scotia. Map 995-A. Scale 1:63,360 or 1 inch to 1 mile. 

1950. Geologic'map, with descriptive notes by L. J. Weeks. The area 

is in eastern Nova Scotia, and is characterized by pre-Cambrian and

Paleozoic rocks. /~i

19. Ottawa, Ontario-Quebec, aeromagnetic series, No. 31 . Scale 1:63,360

or 1 inch to 1 mile. [1950]. ' ' C

20. Perth, Ontario, aeromagnetic series, No. 31r-. Scale 1:63,360 or 1 inch ID

to 1 mile. [1950],

21. Preliminary aeromagnetic map, Pointe Verte, Restigouche and Gloucester 

Counties, New Brunswick* Canada Geol. Survey Paper 50-38, 1950.

22. Senneterre, Quebec. Map 997-A. Scale 1:126,720 or 1 inch to 2 miles. 

1950. Geologic map, with descriptive notes by A. S. MacLaren. The 

area is one of pre-Cambrian rocks.

23. Preliminary, aeromagnetic map, Taschereau, Abitibi County, Quebec: 

Canada Geol. Survey Paper 50-33,1950.

24. Villebon, Quebec. Map 998-A. Scale 1:63,360 or 1 inch to 1 mile. 1950. 

Geologic map, with descriptive notes by M. Tiphane and K. R. Dawson. 

The area is one of pre-Oambrian rocks.

Cannon, rHarry B.

Economic minerals in the beach sands of the southeastern United States, in

Snyder, F. G., ed., Symposium on mineral resources of the southeastern 

United States, p. 2O2 21O, 195O. The geologic and mineralogic features 

of beach sand deposits are discussed, using the Florida ilmenite and

zircon concentrations, as examples. Exploration, source of material,

deposition and other features are considered.

Cannon, Ralph Smyser, Jr.

Nature of ore-lead [abs.]: Geol. Soc. Am, Bull., v, 61, no. 12, pt, 2, p. 1448, 

Dec. 1056.

Caimght, James E.

Are ^^^o,..^^^^st undent <SIoots t C«it>s-3 :

Carder, Dean Samuel.

1 Seismic investigations on' the 5000-foot level, Homestake mine, Lead, S. D. 

[abs.] : Earthquake Notes, v. 21, nos. 1-2, p. 13-14, Mar.-June 1950.

Carey, Byrl D., Jr.,

Geology of the eastern part of Flat Top anticline, Albany and Carbon Counties, 

Wyoming [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1550, 

Dec. 1950.
BIBLIOGRAPHY 57

Carlson, Loyd A.

Magnetic anomalies in South Dakota: S. Dak. Geol. Survey, Rpt. Inv. 66, 

p. 23-35, illus., Jan. 1950. Anomalies of horizontal and vertical intensity are mapped from U. S. Magnetic Tables and Charts (1935), 

with tabulation of values, and are interpreted in the light of their 

correlation with local measurements (1939-46). It is found that most 

anomalies reflect stratigraphy and surflcial lithology rather than 

structures. (See also Petsch, B. C.) V. S.

Carlston, Charles William.

1. Pleistocene history of coastal Alabama: Geol. Soc. Am. Bull., v. 6f, no. 10, 

p. 1119-1130, illus. incl. geol. map, Oct. 1950. "Following its deposition, 

the late Pliocene or early Pleistocene Citronelle formation was entrenched by consequent streams and then tilted toward the Gulf. Submergence . . . then resulted in a compound shore line and marine 

erosion of the Coharie terrace. Four other marine terraces occur 

below the Coharie level: the Sunderlancl, Wicomico, Penholoway, and 

Pamlico."

2. Trends in geomorphic research: Geol. Soc. 'Am. Bull., y. 61, no. 10, p. 1169- 

1170, illus., Oct. 1950. Classification of papers on geomorphology, presented at The Geological Society of America meetings from 1931 to 

1940 and 1945 to 1949, shows increasing productivity in glacial geology 

but a more than off-setting decline in basic research and studies of 

eastern and western United States! V. S.

3. Origin of transverse drainage of the North Atlantic slope tabs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1449, Dec. 1950.

Carpenter, Frank Morton.

The Lower Permian insects of Kansas; Part 10, The order Protorthoptera, 

the family Liomopteridae and its relatives: Am. Acad. Arts and Scl. 

Proc., v. 78, no. 4, p. 185-219, illus., Aug. 1950. Describes ten species 

belonging to eight genera, five of which are new. The relationships 

of the Liomopteridae and five other families with other Permian 

groups are discussed.

Carpenter, Jay Arnold. See Stoddard, C.

Carpenter, John Tyler.

Idaho the gem state: Mineralogist, v. 18, no. 1, p. 46-48, Jan. 1950. Occurrences of precious and semi-precious stones in Ada, Owyhee, Gem, 

Washington, Adams, and Ouster Counties are described. V. S.

Carr, Donald A. See Kulp, J. L., 3.

Carr, Martha E. S.

The District of Columbia; its rocks and their geologic history: U. S. Geol. 

Survey Bull. 967, 59 p., illus. incl. geol. map, 1950; reprinted in part 

in Earth Sci. Digest, v. 4, no. 11, p. 3-6, illus., June 1950. A presentation,, in form suitable for the layman, of the stratigraphy, paleontology, physiography, and economic rocks and minerals of the District 

of Columbia, including brief notes on the geographic and historic 

background.

Carsey, J. Ben." '

Geology of Gulf coastal area and continental shelf: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 3, p. 361-385, illus., Mar. 1950. The coast and shelf 

areas are compared as to geology and topography to determine similarities, and inferences are drawn on the origin of the shelf, salt domes, 

and oil possibilities. Several sketch maps and cross sections are 

included. V. S.

Carter, Frank B.

Calder field, Kern County, California [abs.]: Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 12, p. 2378-2379, Dec. 1950.
58 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Carter, George F.

Evidence for Pleistocene Man in southern California: Geog. Rev., v. 40, no. 1, 

p. 84-102, illus., Jan. 1950; abs. with title Evidence for Pleistocene 

Man in an alluvial fan at La Jolla, California, Geol. Soc. Am. Bull., 

v. 59, no. 12, pt. 2, p.. 1315, Dec. 1948; abridged paper with title Evidence for Pleistocene Man at La Jolla, California, N. Y. Acad.- Sci. 

Trans., ser. 2, v. 11, no. 7, p. 254-257, Jan. 1949. Description of an 

alluvial fan and its relations to sea level fluctuations and soil formation 

in an attempt to correlate the evidence with traces of Pleistocene Man 

in the area. Human occupation probably dates back about 40,000 years, 

and possibly longer.

Gary, Alien Stuart.

1. Origin and significance of openwork gravel: Am. Soc. Civil Eng. Proc., 

v. 76, Separate no. 17, 13 p., illus., May 1950; discussion, .v. 77, Separate 

no. D-17, 10 p., Sept. 1951. Openwork gravel, without interstitial sand 

and associated with well graded fluvial sediments, is considered deposited by swift streams on gravel bars or in deltas. Its significance 

in engineering works is discussed. V. S.

2. Glaciation in the Skykomish River Valley, Washington [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1521, Dec. 1950.

Castano, John R. .

(and Garrels, Robert Minard). Experiments on the deposition of iron with 

special reference to the Clinton iron ore deposits: Econ. Geology, v. 45, 

no. 8, p. 755-770, illus., Dec. 1950. Laboratory experiments bearing 

on the chemical aspects of deposition of the Clinton iron ores are 

described. The results show that ferrous iron can be carried in solution 

in aerated river waters of pH 7 or lower. Such solutions on entering 

marine waters containing calcium carbonate will precipitate ferric 

oxide. The variations in deposition with changing conditions are 

discussed.

Castillo Tejero, Carlos.

Ezequiel Ord6fiez (1867-1950) : Asoc. Mex. Geol. Petrol. Bol., v. 2, no. 6, p. 413- 

418, port., June 1950.

:- Manuel.

Subsuelo del campo de Morainio: A.SOO. Mex. Geol. Petrol. Bol v 2, no. 2. 

 P. 157-168, lllUS.) Feb. 1950. The Moralillo oil neia is aitwatoa southwest of Tampico and west of OeiTO Azill YCIftCniz, Mexico. The CretaceOUS and Tertiary stratigraphy and structural geology are dfigOritied.

It is concluded that the Tertiary formations do not reflect subsurface 

structure but are important to new petroleum possibilities in the area.

Caswell, Charles Alfred;

Stratigraphic prospects in southwestern Oklahoma :. World Oil, V. 131, D.O. 3, 

P. 73-T6, 78, illus., Aug. 1950; abs. with title, Stratigraphic trap possihi'HriDQ in «!01lthWeStern Oklahoma, Am. Assoc. Petrol. Geol. Bull., v. 34,

UlllliCO ill OvlltUMV" _ ___ AU- «,-,,,*-ViTTTr.c.Y- tfnnl,- ^.-P *!, 

IIHS III iiU ILLli TT vW«*'i ** x/*»-"-« 7 - -- - ~._. ,_, ^VA. A^v»ii., v. <j^t

no. 3 p. 620, Mar. 1950. The arGR On the SOUtnweSt flank of the 

WlChita Mountains, Oklahoma, shows good prospects of stratlgrapnlC 

oil traps because of prominent faClGS CMngeS, converging unconformities, onlap ot tho _Pe-»«r1vapiaii system upon the Arbuckle formatiOH, system upon the Arbuckle ,

truncation of formations beiow me f&may^^lam, cl a favorabu;

regional structure pattern. These features RIB discussed, ana electron^ 

Sections and a generalized structural sketch map are given. V. o.

r, Frederick William, Jr. See Wells, F. G. "

Cathcart, James Bachelder, Jr.

1. Notes on the land-pebble phosphate deposits of Florida, i/n, Snyder, F. G,, 

-ed., Symposium on mineral resources of the southeastern United States, 

p. 132-151, illus., 1950. Land-pebble phosphate deposits are found in a 

large area east and southeast of Tampa, Florida. Tne Tertiary and 

Quaternary stratigraphy, mineralogy of the deposits, occurrence and 

origin, and reserves are described in detail. The presence of uranium 

in the phosphate is discussed.
BIBLIOGRAPHY 59

Cathcart, James Bachelder, Jr. Continued

2. (and Houser, Frederick Northrop). Development and distribution of 

leached rock in the land pebble phosphate district, Florida [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1449-1450, Dec. 1950.

Cathcart, Stanley Holman.

1. Gas in Leidy Township, Clinton County, Pennsylvania: Pa. Geol. Survey, 

4th ser., Rpt. 133, 15 p., illus., Jan. 1950. Reports the discovery of gas 

in the Oriskany sand at 5,659 feet on the Wellsboro anticline, extending 

the area of Oriskany gas occurrence. Geological information for the 

area relating to further exploration is summarized. V. S.

2. Pennsylvania Geological Survey's problems: Pa. Dept. Internal Affairs 

Monthly Bull., v. 18, no. 8, p. 7-13, July 1950. A brief review of the 

duties and responsibilities of the Geological Survey in topographic mapping, geologic mapping, and surveying the mineral resources of the 

state.

Cavender, Wayne S.

Geology and the University of Colorado: Compass, v. 27, no. 3, p. 95-103, illus., 

Mar. 1950. The history of, and present instruction at, the geology 

department of the University of Colorado are outlined. V. S.

Cederstrom, Dagfin John.

1. Chemical character of ground water in the Coastal Plain of Virginia: Va. 

Geol. Survey Bull. 68, 62 p., illus., 1946 [1951]. The regional geology 

of the Coastal Plain is briefly outlined, the belts of artesian water are 

described in detail, and the chemical analyses of the ground waters are 

tabulated.

2. Geology and ground-water resources of St. Croix, Virgin Islands: U. S. 

Geol. Survey Water-Supply Paper 1067, 117 p., illus. incl. geol. map, 

1950., The stratigraphy, structure, and water-bearing properties of 

Cretaceous volcanics, diorite intrusives, Oligocene and Miocene clays 

. and marl, and alluvium are described. The physiography is briefly 

summarized. V. S.

Cepeda, Edmundo.

Geologla general de la Cuenca de Tabasco [abs.]: Petr61eo Interamericano, 

v. 8, no. 5, p. 24-25, May 1950.

Cervera del Castillo, E.

1. Informaci6n obtenida durante la perforaci6n de los pozos exploratorios en 

el noreste de Mexico; Asoc. Mex. Ge61. Petrol. Bol., v. 2, no. 4, p. 261-268, 

Apr. 1950. The combined borehole logging, coring, sampling, and fluorescence tests and paleontological and chemical analyses, used in exploratory drilling for oil in the northeast of Mexico, are described 

briefly. V. S.

2. Registro radioactive en el noreste de Mexico; Petr61eos Mexicanos, no. 87, 

p. 80-92, illus., Nov. 1950; abs., Petr61eo Interamericano, v. 8, no. 5, 

p. 25, May 1950. The results of radioactivity logging in four wells in 

northeastern Mexico are presented and interpreted.

Chadwick, George Halcott.

Glacial molding of the Gulf of Maine [abs. ]: Earth Sci. Digest, v. 4, no. 6, p. 15, 

Jan. 1950.

Chaisson, Ursula. See also Laves, F., 2.

The optics of triclinic aclularia: Tour. Geology, v. 58, no. 5, p. 537-547, illus., 

Sept. 1950; abs., Geol. Soc. Am. Bull., v. 60, no. 12, pt. 2, p. 1879, Dec. 

1949; Am. Mineralogist, v. 35, nos. 3-4, p. 279, Mar.-Apr. 1950. Study 

on the Universal stage of adularia crystals from several localities 

indicates that some crystals show triclinic symmetry. The triclinic 

variety occurs as a secondary modification of monoclinic adularia and 

shows distinctive optical properties which make it a variety of potash 

feldspar.
60 ANNOTATED BIBLIOGRAPHY OP NORTH AMERICAN GEOLOGY, 1950

Chaney, Ralph Works.

A revision of fossil Sequoia and Taxodiiim in western North America based 

on the recent discovery of Metasequoia,: Am. Philos. Soc. Trans., v. 40, 

pt. 3 (1950), p. 171-262, illus., Feb. 1951. Presents a description of 

the distinguishing generic characteristics of Metasequoia, Sequoia, and 

Taxodium,; a detailed account of previous studies of specimens from 

the Cretaceous and Tertiary of North America; systematic descriptions 

of recognizable North American species; and a bibliography.

Chapman, Carleton Abramson.

1. Some easily constructed models for teaching optical mineralogy: 111. State 

Acad. Sci. Trans., v. 43, p. 121-126, illus., 1950. Describes the procedure for constructing simple models of pine wood to illustrate the 

fundamentals of optical crystallography. Models for prthorhombic, 

monoclinic, and triclinic crystals are described, and a section is devoted 

to models for illustrating types of dispersion.

2. Quartz veins formed by metamorphic differentiation of aluminous schists: 

Am. Mineralogist, v. 35, nos. 9-10, p. 693-710, illus., Sept.-Oct. 1950. 

Quartz veins occur in a staurolite schist which forms part of the Littleton formation (Devonian) in western New Hampshire. The veins were 

formed by removal of silica from the wall rock, and the differentiation 

operated according to the concretion and solution principles with differential compression due to folding playing an important part.

Chapman, Donald Harding.

Preliminary report on the clays of New Hampshire: N. H. State Plan. Dev. 

Comm. Mineral Res. Survey, Pt. 12, 25 p., map, 1950. Fourteen clay 

deposits in New Hampshire are described, and for six of these the 

results of physical tests and chemical analyses are given. A section on 

the origin of the clays is included.

Chapman, Randolph Wallace.

Contact-metamorphic effects of Triassic diabase at Safe Harbor, Pennsylvania: 

Geol. Soc. Am. Bull., v. 61, no. 3, p. 191-220, illus. incl. geol. map, Mar. 

1950. The highly folded Antietam schist ,and Vintage dolomite are cut 

by a Triassic diabase dike. The petrography of the rocks and the 

contact-metamorphic effects of the intrusion are described. A geologic 

map of the Safe Harbor quarry, where the rocks were studied, is

included. ' V.'S.

Charlewood, G. H.

(and Thomson, James Edgar). Geology of the Lake Shore mine: Ontario 

Dept. Mines Ann. Rpt, 1948, v. 57, pt. 5, p. 150-160, illus., 1950. Describes the development, general geology, structure, and mineralization 

at the Lake Shore gold mine in the Kirkland Lake area, northern Ontario.

Chayes, Felix.

1. On a distinction between late-raagmatic and post-magmatic replacement

reactions: Am. Jour. Sci., v. 248, no. 1, p. 22-36, illus., Jan. 1950. The 

distinction can be based on- the distribution of replacement minerals 

through the rock mass. "If a replacement reaction occurred while the

magmatie residue was still homogeneously distributed through the mass, 

the amount of replacement mineral formed would be roughly propertional to the amount of original mineral available and probably would

not vary inversely with the quantity of the latter surviving the reaction." On this basis muscovite pseudomorphously replacing plagioclase in Barre (Vt.) granite is late-magmatic. V. S.

2. Composition of some IsTetv EJog-lixn<a granites : N. "5Z". Aena. Sci. Trans., ser. 2,

V, 12, no, 5, p, 144-151, illus,, Mar, 1950, The need for reliable quantitative petrographic information on which to base hypotheses of rock origin 

is stressed. The application of such information, compiled for fine- grained granites from 19 New England areas, to the question of granite

origin is discussed. The evidence upholds the iypoteig Of fflflgfflfltW 

origin, that is, crystallization of a liquid of about the same composition 

as the finished product,"for the granites studied.
BIBLIOGRAPHY 61

Chayes, Felix Continued

3. On the bias of grain-size measurements made in thin section: Jour. Geology, 

v. 58, no. 2, p. 156-160, illus., Mar. 1950. Discussion by N. N. Greenman, 

vol. 59, no. 3, p. 268-274, May 1951; reply by F. Chayes, p. 274-275. An 

examination of W. C. Krumbein's work of 1935 and an alternative 

mathematical analysis show that bias is not introduced by the shape and 

. size of the grains but by the technique of measurement and may be 

corrected by computations. V. S.

4. Composition of the granites of Westerly and Bradford, Rhode Island: Am. 

Jour. Sci., v. 248, no. 6, p. 378-407, June 1950. "Point-counter analyses 

of three thin sections cut from each of several specimens of the Bradford 

and Westerly granites are recorded and a variance analysis of the 

results indicates that significant differences in composition within hand 

specimens cannot be detected while differences between hand specimens 

must be very small." Notes on petrographic homogeneity are included, 

together with a discussion of the advantages of microscopic analysis.

5. On the relation between anorthite content and y-index of natural plagioclase: Jour. Geology, v. 58, no. 5, p. 593-595, illus., Sept. 1950. Data 

on anorthite content and 7-index of refraction of plagioclase, as reported in the literature, are correlated, plotted, and interpreted.

6. Measurement of intercept distances in thin section: Am. Geophys. Union 

Trans., v. 31, no. 6, p. 870-872, illus., Dec. 1950. "Use of a low-pitched 

thread on the main screw of the mechanical stage of the point counter 

and substitution of an electric, ten-key adding machine for the cumulative counter used in modal analysis permits rapid measurement of grain 

intercept distances in thin section. The measuring technique and some 

results are described."

Chenoweth, Philip A. .

Trentonian paleogeography in northwestern New York [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1450, Dec. 1950.-

Chesterman, Charles W.

Perlite deposits in Sonoma County, California: Calif. Jour. Mines and Geology, 

v. 46, no. 1, p. 81-82, Jan. 1950. Perlite, a volcanic glass used in plaster 

and concrete, occurs as flows or lenticular bodies and is associated with 

rhyolite and rhyolitic tuffs in the local Pliocene volcanics. V. S.

Ch'ih, Chi Shang. See also Turner, F. J., 1, 3.

Structural petrology of the Wissahickon schist near Philadelphia, Pennsylvania, with special reference to granitization : Geol. Soc. Am. Bull., v. 61, 

no. 9, p. 923-956, illus., Sept. 1950; abs., no. 12, pt. 2, p. 1521, Dec. 1950. 

A comparative petrofabric study of granitized and ungranitized schist 

to determine the effects of granitization, the period of granitization, and 

the chemistry.

Childs, Orlo E.

Geologic history of the Uinta Basin, in Petroleum geology of the Uinta Basin: 

Guidebook to the Geology of Utah, no. 5, p. 49-59, illus.' 1950. Brief, 

general observations on the stratigraphic, structural, and geomorphic 

history of the Uinta Basin, Utah.

Chisholm, E. O.

1. Dithizone solution is sensitive field test for tracing copper, lead & zinc: 

Precambrian, v. 23, no. 1, p. 38-39, Jan. 1950. "The color changes 

effected in a solution of dithizone by trace amounts of copper, lead, 

and zinc mineralization provide a sensitive field test for these minerals." 

Application in Ontario, to samples of soil overlying a zone where gold 

. is associated with disseminated sphalerite, galena, and chalcopyrite, is 

described. V. S.

2. Preliminary report on radioactive occurrences in the Kenora area: Ontario 

Dept. Mines [Prelim. Rpt. 1950-1], 4 p. ($), map, Jan. 1950. Showings 

of faint disseminated uraninite and monazite have been found near 

Kenora, Ontario, in granitic and pegmatitic intrusions. The occurrences 

do not appear to be of sufficient size or grade "to have commercial value.

V. S. 980682° 52 5
62 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Chisholm, E. O. Continued

3. A simple chemical method of tracing mineralization through light nonresidual overburden: Canadian Min. Met. Bull., no. 454, p. 64-68, illus., 

Feb. 1950; Canadian Inst. Mining and Metallurgy Trans., v. 53, p. 44-48, 

1950. The color changes produced in a solution of dithizone by trace 

amounts of copper, lead, and zinc mineralization provide a sensitive field 

test for these metals. A gold-bearing mineralized shear zone- at the 

Nor-Penn Mines property near Kenora, Ontario, was successfully traced 

beneath overburden as much as 5 feet thick.

4 General geology, Red Lake area: Canadian Min. Jour., v. 71, no. 11, p. 110- 

111, geol. sketch map, Nov. 1950. The pre-Cambrian sediments, volcanics, and intrusives of the Red Lake gold mining area in western 

Ontario are briefly described.

6. Crow River area geology: Canadian Min. Jour., v. 71, no. 11, p. 112-113, 

illus. incl., geol. sketch map, Nov. 1950. The pre-Cambrian rocks and 

the structure are briefly outlined, with notes on the gold occurrence. 

Both the Central Patricia and Pickle Crow gold mines are in the Crow 

River area in northwestern Ontario.

Christensen, H. E.

(and Marshall, John). LaBarge field, Lincoln and Sublette Counties, 

Wyoming: Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, p. 105- 

108, illus., 1950. Brief stratigraphic, structural, physiographic, and 

production data are given.

Christiansen, Francis Wyman.

1. Thrust surfaces on the front of the central Wasatch Mountains, Utah [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1450, Dec. 1950.

2. Structural history of the Canyon Range, west-central Utah [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1550, Dec. 1950.

Christie, Archibald M.

Geology of Bonavista map-area, Newfoundland: Canada Geol. Survey Paper 

50-7, 40 p. (t), geol. map, 1950. The Bonavista map-area, on the east 

coast of Newfoundland, contains predominantly sedimentary and volCanic rocks of Proterozoic and Paleozoic (mostly Cambrian) age. The

rocks are mapped and described, with attention to structures, glaciation, 

and economic possibilities, and a columnar section is given. V. S.

Christner, H. Reed. See Combo, J. X.

Church, T. G.

Formation of radioactive surface films on minerals: Canadian Jour. Research,

Section A, Physical Sciences, v. 28, no. 2, p. 164-167, Mar. 195O. Experiments on synthetic ores show that, with requisite chemical treatment.

Specific minerals Will assume a surface radioactivity by undergoing

reactions with radioactive ions in solution. It is essential that the mineral have a tarnished or coated surface, Results obtained for galena,

pyrite, apatite and the cobalt minerals are given.

Chute, Newton Earl.

1. Bedrock geology of the Brockton quadrangle, Massachusetts: U. S. Geol. 

Survey, Geol. Quad. Map, with text. Scale 1: 31,680 or 1 inch to % mile. 

1950.

2. Suirflelal geology of the Brockton quadrangle, Massachusetts TJ S Oeol Survey, Geol, Quad, Map, witn text, scale i: si.oeo or i men to % miie;

1950.

Cisney, Evelyn A. See Murata, K. J.; WeeKs, A. D.
BIBLIOGRAPHY 63

Clabaugh, Stephen Edmund. See also Emmons, R. C.

1. (and Armstrong, Frank Clarkson). Corundum deposits of Gallatln and 

Madison Counties, Montana: U. S. Geol. Survey Bull. 969-B, p. 29-51, 

lllus. incl. geol. maps, 1950. The Elk Creek, Bozeman, and Bear Trap 

deposits, southwest of Bozeman, Montana, have been investigated as 

potential sources of abrasive corundum. The deposits are described 

and outcrop maps given. The hypothesis that the corundum-bearing 

lenses were formed by regional metamorphism of syngenetic aluminarich sediments is discussed.

2. Pegmatites of Montana: Econ. Geology, v. 45, no. 3, p. 254-257, May 1950. 

Discussion of E. W. Heinrich's report on Montana pegmatites (v. 44, 

p. 307-335, 1949). The alternative hypothesis is proposed that the 

corundum deposits southwest of Bozeman, Montana, are metamorphosed 

lenses and beds of aluminous sedimentary rocks in which the corundum 

crystals were among the latest minerals to develop. , V. S.

3. Eudialyte and eucolite from southern New Mexico [abs.]: Am. Mineralogist, 

v. 35, nos. 3-4, p. 279-280, Mar.-Apr. 1950.

4. Corundum deposits of Montana [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1451, Dec. 1950.

Claffy, Esther W.

(and Schulman, James Herbert). Luminescence activation of zeolite minerals 

by base exchange [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1451, Dec. 1950.

Clair, Joseph Robinson. "

(and Edson, Fanny Carter). Lithologic criteria of Arbuckle in western Kansas: World Oil, v. 131, no. 7, p. 83-84, 89-90, illus., Dec., 1950; abs.f 

Oil and Gas Jour., v. 45, no. 36, p. 121, Jan. 11, 1947. The zones into 

which the Arbuckle rocks of Cambrian and Ordovician age have been 

subdivided on the basis of lithology are described. These lithologic 

zones are for quick identification of any part of the Arbuckle rock 

section and are not correlated with zones based on insoluble residue 

studies.

Claisse, Fernand.

A roentgenographic method for determining plagioclases: Am. Mineralogist, 

v. 35, nos. 5-6, p. 412-420, illus., May-June 1950. "A new a;-ray diffraction method is described which permits the measurement of the 

Ab-An percentage composition of plagioclases to 1 or 2 percent. . . . 

Several plagioclases of known composition were analyzed, and calibration curves are given. They indicate that plagioclases do not 

constitute a single isomorphic series, but rather two such series, with 

a transition point in the vicinity of AbaAm."

Clark, Arthur W.

Quartz "diamonds" in olivine basalt: Rocks and Minerals, v. 25, nos. 1-2, 

p. 50-51, Jan.-Feb. 1950. In the basalt flows of the Coast Ranges of 

northern California clear, crystalline quartz grains are intimately 

associated with olivine crystals, being apparently foreign material 

picked up by the melt during its extrusion. y. S.

Clark, John D.

Petalite, a new commercial mineral: Min. Eng., v. 187, no. 10, p. 1068-1070, 

illus., Oct. 1950; A. I. M. E. Trans., v. 187, 1950. Petalite is a lithium 

aluminum silicate somewhat similar to spodumene, but differing in 

chemical composition, specific gravity, and other properties. Its occurrence, properties, and commercial applications are discussed.
64 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Clark, Robey Harned.

The petrology of some Des Moines series sandstones of Iowa: Jour. Sed. 

Petrology, v. 20, no. 1, p. 21-36, illus., Apr. 1950. "The basal sandy 

units of the simple cyclothems of the Pennsylvania Des Moines series 

of south-central Iowa are well sorted, fine grained to silty, quartzose 

sandstones. Mineralogically they consist of stable species derived 

largely from pre-existing sediments but containing some apparently 

fresh material from granitic and metarnorphic terranes." The light 

and heavy minerals are listed, and the conditions of deposition, source 

areas, and variations in mineral occurrence and abundance are discussed.

V. S.

Clark, Thomas Henry.

Preliminary report on the Grondines map-area, Champlain, Portneuf, Laviolette, Nicolet, and Lotbiniere Counties; Pt. 1, Paleozoic section: Quebec 

Dept. Mines, Geol. Surveys Br., Prelim. Rpt. 237, p. 1-3 (t), geol. map, 

1950. Brief notes on the Ordovician strata and structure in the 

Grondines area, 40 miles west of Quebec City.

Claudet, Aime P.

New method of correlation by resistivity values of electrical logs: Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 10, p. 2027-2060, illus., Oct. 1950. The 

method described consists in using the numerical values of shale resistivities as a basis for the correlation of subsurface formations. Numerous examples are given, with electrolog sections, of long-range correlations in Louisiana, Mississippi, and Alabama. The method is particularly 

useful for short-range correlations in faulted areas. V. S.

Claveau, Jacques.

North shore of the Saint-Lawrence from Aguanish to Washicoutai Bay, Saguenay County: Quebec Dept. Mines, Geol. Surveys Br., Geol. Rpt! 43, 40 p. 

($), illus. incl. geol. map, 1950. The petrology and structure of the 

pre-Cambrian basal complex, exposed along the north shore of the 

Gulf of St. Lawrence from Aguanish to Washicoutai Bay is described. 

Brief consideration is also given to glacial geology and economic 

possibilities. V. S.

Clayton, Neal.

1. Seismic problems in reef shooting: World Oil, v. 130, no. 2, p. 69-72, illus., 

Feb. 1950. Mapping of reefs by seismic reflection shooting is discussed 

on the basis of work in the North Snyder oil field, Texas. Attention 

is given to the geology of the producing Canyon reef, as indicated by

electrical logs, and to problems of interpreting reflections, complicated

here by the absence of structural relief in shallow beds. V. S.

2. Reflection snooting in the north Snyder area, Scurry County, Texas [abs.] :

Geophysics, v. 15, no. 1, p. 154, Jan. 1950.

Cleaves, Arthur Bailey.

1. (and Stephenson, Robert Charles). Guidebook to the geology of the Pennsylvania Turnpike, Carlisle to Irwin : lr>a. Geol. Survey, 4th ser., Bull. G 24, 72 p., illus. incl. geol. maps, 1949. The guidebook describes the physiography, geologic history, engineering geology, and economic geology

of the area in south-western Pennsylvania traversed by the ttirnpike

and includes a geologic itinerary illustrated by a strip map. The strata

2. Segmentation and Highway engineering, in Applied sedimentation, p. 127- 

146, illus., 1950. Various problems in connection with the construction

of high-ways on soils and sedimentary rocks, and problems of landslides,

subsidence, and base courses are discussed. 

Clements, ruomaa D.

Some formations exposed in the Cuyama Gorge, Branch Mountain quadrangle, 

California [abs.] : Am. Assoc. Petrol. Geol. Bull., v. 34, no. 12, p. 2378, 

Dec. 1950.
BIBLIOGRAPHY 65

Clewell, Dayton Harris.

1. (and Simon, R. F.). Seismic wave propagation: Geophysics, v. 15, no. 1, 

p. 50-60, illus., Jan. 1950. Reasons are indicated why seismic energy 

reflected from geologic horizons is usually in the frequency range of 

20 to 100 cycles per second. The explanation accounts for the continuous 

reception of random energy superimposed upon reflection energy, the 

relatively lower frequency of deeper reflections, and other observations.

V. S.

2. Recent developments in seismic research: Colo. School of Mines Quart., 

v. 45, no. 4A, p. 79-86, Oct. 1950. Post-war advances in seismic instrumentation, field techniques, and record analysis, as used in oil exploration, consist of technical improvements and adaptations to special 

problems, but no application of radically new principles. V. S.

Clifton, Roland Leroy.

Memorial to Charles Newton Gould [1868-1949]: Geol. Soc. Am. Proc. 1949, 

p. 165-174, port, June 1950.

Cline, Lewis Manning.

1. (and Greene, Frank Cook). A stratigraphic study of the upper Marmaton 

and lowermost Pleasanton groups, Pennsylvanian, of Missouri: Mo. Geol. 

Survey and Water Res. Rpt. Inv. 12, 1950, 74 p., illus., 1950. The 

stratigraphy and fauna of the upper Marmaton and lowermost Pleasanton formations, of Pennsylvanian age, from west-central Missouri to 

south-central Iowa are discussed and illustrated by 7 correlation charts 

and 24 columnar sections. Special attention is given to the position of 

the Desmoinesian-Missourian boundary in Missouri. The name Amoret 

is proposed for the lower member of the Altamont limestone, with 

designation of a type section. A bibliography is given. V. S.

2. (and Heuer, Edward). The Cadaster alternatus-Codaster pyramidatus 

group of blastoids from the Mid-Devonian of North America: Jour. 

Paleontology, v. 24, no. 2, p. 154-173, illus., Mar. 1950. A restudy of 

type material from the vicinity of ^Louisville, Kentucky, and other specimens, to provide more adequate identification and descriptions, raises 

one variety to specific rank, illustrates one species for the first time, 

and suppresses one species or variety as a synonym. V. S.

Cloninger, James S.

How deep oil or gas may be expected: World Oil, v. 130, no. 6, p. 57-62, illus. 

May 1950. Physical and geologic considerations indicate that oil and 

gas may be expected in sandstones to a depth of 65,620 feet and in 

limestones to 51,300 feet. Thus, if the necessary source rocks are 

present, oil or gas could be found near the bottom of all favorable 

sedimentary sections in the United States, except the San JoaquinSacramento basin in California, whose depth reaches 75,000 feet. A 

bibliography is given. V. S.

Cloos, Ernst.

1. The geology of the South Mountain anticlinorium, Maryland: Johns Hopkins Univ. Studies in Geology, no. 16, pt. 1, p. 1-1 to 1-28, illus. incl. 

geol. maps, 1950. The stratigraphic and structural features of the 

South Mountain anticlinorium in northwestern Maryland are described 

in a guidebook prepared for the Geological Society of America field trip 

in November 1950. Detailed road logs of the route, Rockville-Harpers 

Ferry-Frederick-Baltimore, and other intermediate points, are given. 

A geologic map of the Harpers Ferry gorge area is included.

2. (and Anderson, Judson Lowell). The geology of Bear Island, Potomac 

River, Maryland: Johns Hopkins Univ. Studies in Geology, no. 16, pt. 2, 

p. II-l to 11-13, illus. incl. geol. map, 1950. The structural geology of 

Bear Island, one of the Potomac River islands between the District of 

Columbia and Great Falls, is described in a guidebook prepared for the 

Geological Society of America field trip in November 1950. Mica schist 

and quartzite, a variety of basic rocks, and granite comprise the bedrock. The area has been intensely metamorphosed, partly by deformation and partly by intrusion of the granite.

3. (and Reed, John Calvin). Memorial to Robert Ellsworth Fellows [1915- 

1949] : Geol. Soc. Am. Proc. 1949, p. 159-162, port., June 1950.
66 ANNOTATED BIBLIOGRAPHY OP NORTH AMERICAN GEOLOGY, 1950

Coats, Robert Roy.

Volcanic activity in the Aleutian arc: U. S. Geol. Survey Bull. 974-B, p. 35-49, 

illus., 1950. Volcanic activity in the Aleutian arc, from Buldir Island 

to Mount Spurr, is reviewed from 1760 to 1948. The distribution of 

the volcanoes, dates and periodicity of eruptions, characteristic volcanic 

features, and relation to structure are described. Data on 76 major 

volcanoes are tabulated, including 17 caldera, 9 of which have not been 

hitherto reported. V. S.

Cobban, William Aubrey.

Telegraph Creek formation of Sweetgrass arch, north-central Montana: Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 9, p. 1899-1900, Sept. 1950. A recently identified fauna from the Sweetgrass arch in Montana confirms 

the validity of the name "Telegraph Creek formation" for the beds 

transitional between the Colorado shale and the Virgelle sandstone. 

The forms are listed. . V. S.

Cochran, Kenneth L.

1. Wyoming phosphate industry: Wyo. Geol. Assoc. Guidebook, Southwest 

Wyoming, p. 133-135, 1950. The geology of the phosphate deposits in 

Wyoming is briefly described, together with notes on the two operating 

companies at Leefe and Kemmerer.

2. Geology's place in the mining industry: Ohio State Univ., Eng. Expt. Sta. 

News, v. 22, no. 2, p. 1'5, 34-36, Apr. 1950. The importance of sound 

geological training in the exploration and development of new mines is 

stressed, and the qualifications of a mining geologist are set forth.

Cockfield, William Egbert. See Buckham, A. F., 2.

Coffin, Reuben Clare.

Geological imagination in the interpretation of geophysical data: Colo. School 

of Mines Quart., v. 45, no. 4A; p. 11-40, illus. incl. maps, Oct. 1950. 

When geophysical data are s<5 few or varied that several interpretations 

of the geology are possible, the geologist should be imaginative and 

speculative in considering possible solutions, and able to change his 

ideas as additional information is acquired. Specific examples of

problems are given.

Cohee, George Vincent.

(and others). Coal resources of Michigan: U. S. Geol. Survey Oirc. 77, 56 p. 

(t), illus., June 1950. With the exception of a few introductory pages, 

the circular consists of 36 maps of various townships and ranges showing 

reserves by depth and thickness, and several tables of mine, production, 

and reserve data. A map of the Michigan coal bflSin ghOWS the 3163 Of

reserves and thickness of glacial drift. Total reserves as of January 

1950 are placed at 220 million tons.

Colbert, Edwin Harris.

i. (and Northrop, Stuart Alvord) (editors). GniflebooK for the rourtn neia

conference of tne Society of Vertebrate Paleontology in northwestern 

New Mexico. 91 p., illus. incl. geol. maps. [195O]. The conference,

sponsored by the American Museum of Natural History ana the University of New Mexico, was held June 20-24, 1950. The guidebook contains 103(1 lOgS, and papers by S. A. Northrop, A. S. Romer, E. H. Colbert, 

and G. G. Simpson.

2. Mesozoic vertebrate faunas and formations of northern New Mexico in

GllidebOOK IGF the fOUrth field Conference of the Society of Vertebrate

Paleontology in northwestern New Mexico, p. 57-73, illus., 1950.. Describes tbe Chinle formation and fauna of Triassic age in the Chama

River Valley (including notes on the Jurassic and OetaCQOUS) flDfl the

Cretaceous beds and fauna in the San Juan Basin. 3. The beginning of the age of dinosaurs m nortnem Arizona: nateau, v. 22,

no. 3, p. 37-43, illus., Jan. 1950. A popular account of the life and its 

environment in northern Arizona during Triassic time.
BIBLIOGRAPHY 67

Cole, E. J.

Copper at Coxheath: Nova Scotia Dept. Mines Ann. Kpt. 1949, p. 104-107, 

illus., 1950. Copper occurs in Coxheath hills, Cape Breton County, 

Nova Scotia, at the sheared boundary between local pre-Oambrian volcanics and intrusives. The main veins are described, and geophysical 

profiles and sampling results are given. V. S.

Colle, Jack Overton.

(and others). Cenozoic and Mesozoic in the Texas portion of the Gulf Coast 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1472, Dec. 1950.

Collins, Robert E. Lee. See Gazin, C. L., 1. 

Collinson, Charles. See Miller, A. K., 6.

Combo, John Xavier.

(and Holmes, Clifford Newton, and Christner, H. Reed). Map showing coal 

resources of Montana: U. S. Geol. Survey Coal Invs. Map C 2 (2 sheets). 

Scale 1:500,000 or about 1 inch to 8 miles. 1950. The map covers two 

sheets, east half and west -half, and the coal. resources are shown in 

color, indicating the rank, and in patterns, indicating thickness of beds. 

Locations of a selected list of mines are given. A bibliography of U. S. 

Geological Survey publications describing coal areas on the map is 

included.

Comeforo, Jay Eugene.

(and Hatch, Robert Alchin, and Eitel, Wilhelm). Isomorphism of synthetic 

fluorine-amphiboles [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1452, Dec. 1950.

Conant, Louis Cowles.

Outcropping Cretaceous beds of Mississippi, in Mississippi Geological Society 

Guidebook, Eighth Field Trip, October 13-15, 1950, p. 5-11, illus., 1950. 

Describes the Gordo formation of the Tuscaloosa group, the McShan 

and Eutaw formations, and the Mooreville chalk, Demopolis chalk, 

Ripley formation and Prairie Bluff chalk of the Selma group.

Conkin, James.

1. On the occurrence of a new species of Cyrtodonta from the Liberty formation of Oldham County, Ky.: Annals Ky. Nat. History, v. 1, art. 3, 

p. 23-25, illus., Oct. 28, 1948. Describes Cyrtodonta beckneri, a new 

species of pelecypod from the upper part of the Liberty formation 

(Ordovician) at Sleepy Hollow, Prospect quadrangle, Oldham County, 

Kentucky.

2. The paleontology and stratigraphy of Sleepy Hollow in Oldham County, 

Kentucky: Annals Ky. Nat. History, v. 1, art. 6, p. 45-48, illus., Oct. 6, 

1950. "This report gives the stratigraphic column for the Ordovician 

of Sleepy Hollow, makes additions to Charles Butts' faunal list of 

1914-1915 for the Liberty formation, and points out the evidence of the 

Whitewater age of the upper beds of the Liberty and the lower beds 

of the Saluda."

Content, C. S.

Geology applied to engineering: Billings Geol. Soc., First Annual BHeld Conference, Sept. 15-17, 1950, p. 60-65, illus., 1950. A general paper describing how geologic data are applied to various engineering practices, 

listing the data necessary in the designing of earth dams, and indicating 

a method of presentation of data in a report.

Contreras, Hugo.

Posibilidades del Alto Salina de Moloacan-Ixhuatlan: Asoc. Mex. Ge61. Petrol. 

Bol., v. 2, no. 7, p. 473-484, illus. incl. geol. sk. map, July 1950. Describes 

the Tertiary stratigraphy and structure in the area of the Moloacan 

and Ixhuatlan oil fields, southeast of Coatzacoalcos, Veracruz, Mexico.
68 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Conybeare, Charles E. B.

1. (and Ferguson, Robert Bury). Metamict pitchblende from Goldfields, 

Saskatchewan, and observations on some ignited pitchblendes: Am. 

Mineralogist, v. 35, nos. 5-6, p. 401-406, illus., May-June 1950. "Seven 

metamict pitchblendes, apparently the first to be reported, are described . . . The changes in a?-ray powder pattern and color of the 

powder after ignition are tabulated . . .; the principal changes are 

the restoration of the structure of metamict specimens and the occasional development of U3O8 with, or in place of U02 . On the basis 

of these changes the nine pitchblendes examined are classified into 

five distinct types."

2. Microstylolites in pre-Cambrian quartzite; a reply: Jour. Geology, v. 58, 

no. 6, p. 652-654, illus., Nov. 1950. Reply to the discussion by B. M. 

Shaub (which see) of Conybeare's article Stylolites in pre-Cambrian 

quartzite, Jour. Geology, v. 57, no. 1, p. 83-85, Jan. 1949.

3. (and Campbell, Charles Duncan). Petrology of the red radioactive zones 

north of Goldfields, Saskatchewan [abs.]: Am. Mineralogist, v. 35, nos. 

3-4, p. 280, Mar.-Apr. 1950.

Cook, Harold James.

1. Some considerations affecting the Miocene-Pliocene boundary question in 

vertebrate-bearing rocks in North America and Eurasia: Internat. 

Geol. Cong., 18th, Great Britain, Rpt. pt. 11, p. 85-92, 1950. "The author 

postulates a temporary land bridge that allowed mass migration to 

North America of mammals whose original home probably became 

submerged, and outlines paleogeographical and physical changes that 

are directly related to the problems of intercontinental migration of 

vertebrates."

2. Geologic structures in western Nebraska and adjoining areas [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1551, Dec. 1950.

Cook, Kenneth Lorimer.

1. Magnetic surveys in the Iron Springs district, Iron County, Utah: U. S. 

Bur. Mines Rpt. Inv. 4586, 78 p. (t), illus. incl. geol. sketch maps, Jan. 

1950. Surveys for iron ore were chiefly confined to zones of the Homestake limestone, favorable to replacement ores, at the margins of three 

monzonite intrusions. The 45 magnetic anomalies detected are discussed.

V. S.

2. Quantitative interpretation of vertical magnetic anomalies over veins: Geophysics, v. 15, no. 4, p. 667-686, illus., Oct. 1950; abs., Oil and Gas Jour., 

V. 46, no. 52, p. 115-116, Apr. 29, 1948; Geophysics, v. 13, no. 3, p. 496, 

July 1948. Derives new variants of the formulas for the magnetic 

anomalies over a vertical or inclined vein of tabular shape in intermediate northern -magnetic latitudes. The orientation of the veins relative 

to the magnetic north direction is emphasized. Vertical magnetic 

intensity Curves for veins with different strikes and dips are given. V. S.

Cooke, Charles Wythe.

Carolina bays, traces of tidal eaaies [at»s.]: oeoi. soc. Am. BUU., -v. ea, no. 12, 

pt. 2, p. 1452, Dec. 1950.

Cooke, Harold Caswell.

Arthur. Berkeley Yates (1901-1949) : Royal SOC. Canada FfQC,, 3d ser.; v. 44, 

p. 121-122, 1950.

Cooke, William Forester, Jr, See Cone, j. o.

Coombs, Howard Abbott.

1 Vibration (Studies at Ross Dam: Trend in Engineering at the University

of Washington, v. 1, no. 3, p. 5-10, illus., July 1949. Measurements of

vibrations set up by blasting are presented and their effect on Boss 

Dam (Skagit River, northwest Washington) is evaluated.
BIBLIOGRAPHY 69

Coombs, Howard Abbott Continued

2. Granitization in the Swank arkose near Wenatchee, Washington: Am. Jour. 

Sci., v. 248, no. 6, p. 369-377, illus., June 1950. The Swauk formation 

of Eocene age is composed essentially of arkoses and sandstones with 

some clay, shale, and conglomerate. Along the axis of an anticline, the 

arkose has been transformed locally into a rock of the composition 

and texture of granodiorite. The granitization process was carried 

on at low temperatures and with a very small a -ount of solutions. 

The various steps can be traced and are described.

Coombs, Vincent Bruce. See Byrne, F. E., 3.

Coons, R. M.

(and Watson, Howard D.). "Black oil" at Lloydminster: Western Miner, 

v. 23, no. 5, p. 56, 58, 60, 62, 64, illus., May 1950. The Lloydminster field 

on the Saskatchewan-Alberta border is the center of a petroliferous 

area of Lower Cretaceous sediments. Oil and gas accumulations occur 

in lenticular sands where local structure is favorable. The geology and 

production history of the area are outlined. V. S.

Cooper, Gustav Arthur.

Permian faunas of the Glass Mountains, Texas, and their environment: N. Y. 

Acad. Sci. Trans., ser. 2, v. 12, no. 3, p. 80-81, Jan. 1950; abs., Geol. 

 Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1453, Dec. 1950. A brief, general 

description of the various types of silicified brachiopods occurring in 

limestones of the Wolfcamp, Leonard, and Word formations of Permian 

age. 

Cooper, Harry Mac. See Dowd, J. J., 1, 2.

Cooper, Hilton Hammond, Jr.

(and Stringfield, Victor Timothy). Ground water in Florida: Fla. Geol. 

Survey, Inf. Circ. 3, 7 p., illus., June 1950. Describes briefly the occurrence, source, movement, and consumption of ground water in Florida, 

and touches on some of the problems of development and conservation.

Cooper, John Roberts.

Arizona zinc and lead deposits; Johnson Camp area, Cochise County, Arizona: 

Ariz. Bur. Mines Bull. 156, Geol. Ser. 18, p. 30-39, illus. incl. geol. map, 

Apr. 1950. The structure, metamorphism, and ore bodies of the area 

are described.

Cornejo Toledo, Alfonso.

(and Hernandez Osuna, Alfonso). Las anomalias gravime'tricas en la Cuenca 

Salina del Istmo, planicie costefa de Tabasco, Carnpeche y peninsula de 

Yucatan; Asoc. Mex. Ge61. Petrol. Bol., v. 2, no 7, p. 453-460, illus., 

July, 1950; Petr61eos Mexicanos, no. 87, p. 60-69, illus., Nov. 1950. 

Gravity anomalies in Tabasco, Campeche, and Yucatan are discussed 

briefly.

Corwin, Charles H.

Kern Bluff oil field: Calif. Oil Fields, v. 36, no. 1, p. 15-17, illus., Jan-June 

1950. The history, stratigraphy, structure, and producing zones are 

briefly described. The Kern Bluff field is located in the southeastern 

part of the San Joaquin Valley, 6 miles northeast of Bakersfield, 

California.

Cosminsky, Philip R.

An occurrence of babingtonite in Loudoun Co., Virginia: Rocks and Minerals, 

v. 25, nos. 11-12, p. 579, Nov.-Dec. 1950. Reports the discovery of 

babingtonite, a triclinic pyroxene, at the Arlington trap rock quarry 

on Goose Creek in Loudoun County, northern Virginia.
70 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Coulomb, Jean.

(and Molard, Pierre). Ondes selsmiques au fond de la mer des Antilles: 

Annales de GSophysique, tome 5, no. 3, p. 212-214, illus., 1949; addendum, tome 6, no. 1, p. 65, 1950. Describes and interprets certain seismic 

waves in the Caribbean region registered at the Observatory at Martinique. Reference to the work of Gutenberg and Richter, and Tolstoy, 

Ewing and Press is given in the addendum.

Counts, W. E.

(and Roy, Rustum, and Osborn, Elburt Franklin). The binary systems 

CaFa-BeF2, MgF2-BeF2, PbF2-BeF2 , and LiF-MgFa [abs.] : Am. Ceramic 

Soc. Bull., v. 29, no. 3, p. 128, Mar. 1950.

Cox, Benjamin Burton.

Influence of clay in oil production: World Oil, v. 131, no. 7, p. 174,176,180-182, 

illus., Dec. 1950. The various properties of clay that influence oil production, such as swelling, dispersion, flocculation, and base exchange, 

are discussed. The arrangement of clay in a reservoir sand is considered 

in its relation to associated problems.

Cox, Doak Carey. See Shepard, F. P., 1. 

Cox, Robert T. See Bartley, J. H., 2.

Crandell, Dwight R.

Revision of Pierre shale of central South Dakota: Am." Assoc. Petrol. Geol. 

Bull., v. 34, no. 12, p. 2337-2346, illus., Dec. 1950. The history of the 

terminology of the subdivisions of the Upper Cretaceous Pierre shale in 

South Dakota is outlined, and a revised classification is proposed. 

Three subdivisions of the Sully member, as used by the South Dakota 

Geological Survey, are raised to member rank, and the term. Sully is 

discarded. The Agency-Oacoma zone is redefined and renamed the 

DeGray member. V. S.

Crawford, Arthur Lorenzo.

1. (and Buranek, Alfred M.). Halloysite of agalmatolite type, Bull Valley 

district, Washington County, Utah: Utah Acad. Sci. Proc., v. 25, p. 

127-133, 1948. The properties, chemical composition, and origin of the 

halloysite are described, together with notes on the geologic occurrence.

2. The meteorite (?) discovery in 1938, near Evanston, Wyoming; a confession 

of error: Utah Acad. Sci. Proc., v. 25, p. 151-155, 1948. The material 

formerly described as the "Stove Creek meteorite" is now definitely 

identified as slag.

3. (and Buranek, Alfred M., and Bell, Mendell McClellan). Kyanite schists

Of GrOUSe Creek Range, Box Elder County, Utah [abs.l: Utah A.cad.

Sei. Proc., v. 25, p. 180-181, 1948.

Crawford, J. E. See McKeivey, V. E., 3.

Creasey, Sayville Cyrus.

1. Arizona zinc and lead deposits; Geology of the St. Anthony (Mammoth)

area, Final County, Arizona: Ariz. Bur. Mines Bull. 156, Geol. ser. 18, 

p. 63 84, illus. incl. geol. map, Apr. 195O. The rocks, structure, and mineralization of the area are described in some detail. The deposit

is of the vein type, involving both filling and replacement, occurring in 

rhyolite and quartz monzonite. Galena and sphalerite are the chief ore"

minerals.

a. Arizorxo..ssino ana lead deposits:.Iron King mine, Tavapai County, Arizona: 

AriZ, Bur. Mines Bull. 156, Geol. ser. 18, p. na-isa, mws. mci. geoi.

sketch map, Apr. 1950. The rocks, structure, and mineralization in the

Iron.King area are described. 

Crentz, William L. See Dowd, .T. .T., 2.
BIBLIOGRAPHY . 71

Crickmay, Colin Hayter.

. Some Devonian Spiriferidae from Alberta: Jour. Paleontology, v. 24, no. 2, 

p. 219-225, illus., Mar. 1950. Five new species of Eleutherolcomma, new 

genus (hitherto confused with Mucrospirifer), are described from the 

new oil fields of Alberta, Canada, from late Middle and early Upper 

Devonian formations.

Crittenden, Max D., Jr.

Pre-Carboniferous stratigraphy and structure of the Uinta Basin, Utah and 

Colorado, in Petroleum geology of the Uinta Basin: Guidebook to the 

Geology of Utah, no. 5, p. 61-69, illus., 1950. Brief notes on the occurrence of pre-Cambrian, Cambrian, Ordovician, and Devonian in the 

vicinity of the Uinta Basin.

Crockett, Harry Lee. See Frost, V. L.

Croft, W. N.

A parallel grinding instrument for the investigation of fossils by serial sections: Jour. Paleontology, v. 24, no. 6, p. 693-698; illus., Nov. 1950. "A, 

surface grinding instrument, primarily for grinding parallel sections of 

fossils at exact intervals down to 10 microns, is described and figured. . . . Mention is also made of its use in cutting plates from crystals 

or other substances."

Croneis, Carey Gardiner.

E. DeGolyer> Sidney Powers Memorial Medalist: Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 5, p. 971-974, port., May 1950.

Cross, Aureal T. See Abilene Geol. Soc., 3; Hosklns, J. H.

Crowell, John Chambers.

1. Geology of Hungry Valley area, southern California: Am. Assoc. Petrol. 

Geol. Bull., v. 34, no. 8, p. 1623-1646, illus. incl. geol. map, Aug. 1950; 

abs., v. 32, no. 12, p. 2319, Dec. 1948. The geologic history of the Hungry 

Valley area, southern California, is reconstructed as a succession of - 

Pliocene continental elastics deposited concurrently with movement on 

the San Gabriel fault zone, followed by Pleistocene folding and faulting 

and Recent uplift and erosion. Geologic map and sections are given.

V. 8.

2. Submarine canyons bordering southern California [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1453-1454, Dec. 1950.

Crowl, George Henry.

Erosion surfaces of the Adirondacks [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1565, Dec. 1950.

Crozier, Archie R.

Fuels of Ontario: Canadian Min. Jour., v. 71, no. 11, p. 166-168, illus., Nov. 

1950. Natural gas is the chief fuel resource of Ontario. The occurrence 

is briefly described. ;

Crump, Robert M. See Emmons, B. 0.

Gumming, Jorge L.

Deep discoveries increase Mexico's oil reserves: World Oil, v. 130, no. 4, 

p. 225-226, Mar. 1950. The discoveries made since 1941 include deeper 

pays in the Poza Rica field and new deposits in the Tamaulipas, Veracruz, and Tabasco regions. They have raised the oil reserves from 

821 million to 1-3 billion barrels. V. S.

Cunningham, William A. See Barnes, V. E., 2.

Currie, J. B.

Ossiau Township, Ontario (report and map): Canada Geol. Survey Paper 

50-6, 7 p. ($), geol. map, 1950. The area is characterized by Keewatin 

volcanics and post-Keewatin intrusives. Petrology, structures, and gold 

and pyrite mineralization are outlined briefly. V. S.
72 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Curtis, Bruce Franklin.

Structure of the north flank of the Uinta Mountains: Wyo. Geol. Assoc. Guide-, 

book, Southwest Wyoming, p. 93-102, geol. sketch map, 1950. Describes 

and correlates stratigraphic 'and structural data on the area of the 

north flank of the Uinta Mts'., northern Utah. The structural history 

of the region is outlined and a table of chronology of Laramide events 

is given.

Curvin, Bernard Arthur. See Hendricks, T. A., 2.

Cushman, Joseph Augustine, 1881-1949. See Durham, J. W., 1.

Cushman, R. V.

The ground-water resources of Rensselaer County, New York: N. Y. Water 

Power and Control Comm. Bull. GW-21, 56 p., illus. incl. geol. map, 

1950. Rensselaer County, New York, is chiefly underlain by folded 

Lower Cambrian to Middle Ordovician sediments, mantled by unconsolidated glacial or alluvial deposits. The main aquifers are the stratified drift and related sands and gravels, v. s.

Custers, J. F. H.

On the nature of the opal-like outer layer of coated diamonds: Am. Mineralogist, v. 35, nos. 1-2, p. 51-58, illus., Jan.-Feb. 1950. Microscopic study 

shows the coating to be pure diamond, with minute foreign particles 

embedded in string formations. The latter suggest a growth in waves 

of angles of 60° and 80°, with the first predominant. V. S.

Daggett,E.B. See Fahey, J. J., 1.

Dake, Henry Carl. See also Hodson, G. K.

1. Northwest gem trails; a field guide for the gem hunter, the mineral collector, and the tourist. 1st ed., 80 p., illus. Portland, Oregon, The 

Mineralogist Pub. Co. 1950. Mineral collecting in Oregon, Washington, 

Idaho, Montana, and Wyoming is described.

2. Uranium in agate, new Oregon locality: Mineralogist, v. 18, no. 1, p. 50, 

52, 54, Jan. 1950. The hollow interiors of "thunder eggs," found near 

Plush, Oregon, are coated with flourescent uraniferous opal, apparently 

deposited later than the non-fluorescent agate filling. V. S.

3. The jadeite locality: Mineralogist, v. 18, no. 4, p. 188, 190, Apr. 1950. The

Jadeite locality near the Gem mine, San Benito County, California, is 

alSO tug Site Of discoveries Of the rare minerals benitoite and neptunite.

V. S.

4. Uranium found in Montana agate: Mineralogist, v. 18, nos. 7-8, p. 358, 

360, July-Aug. 1950. The presence of uranium in extremely small

amounts in moss agate from the Yellowstone River basin region is

reported. 

Daly, John Warlaumont.

BeneUts clerlved ±rorri cooperative wen velocity surveys - -Wot-i,! on v 131

nO, 6, P, 81, 84, 91, illUS,, NOT, 1950. Velocity surveys are discussed

as a useful method by which seismograph information can be correlated with lithologic variations. An example from the Midland basin,

Texas, is given. V. S. 

Daly> Reginald Aidwortn.

1. Geology: Sci. Am., v. 183, no. 3, p. 36-39, illus., Sept. 1950. A Slimy, for the

layman, of the advances in geological thinking and knowledge that have

taken place in the past fifty years. Among the points disCUSSfid are the

measurement of the age of rocks by radioactivity, temperature variations in the earth's crust and tneir cause, tne prowem or continental ann

and its relation to crustal layering, the origin of lavas, the exploration

Of ocean depths, sea level changes, and climatic variations.

2. A geological map of British Columbia: Am. Jour. Sci., v. 248, no. 10, p. 741- 743, Oct. 1950. Discusses ffie geologic map °£ British Columbia,

recently issued by the Geological Survey of Canada, with reference to 

Archean rocks as the dry-land source of local Proterozoic and younger 

clastic sediments. V. S.
BIBLIOGRAPHY 73

Damon, Paul E.

Radioactivity and mineralization in rhyolite porphyry: Geophysics, v. 15, 

no. 1, p. 94-101, illus., Jan. 1950. Gamma-ray well logs should give 

accurate indications of the location of mineral deposits in potassiumrich rocks according to measurements of the hard gamma radiation 

from the pre-Cambrian rhyolite porphyry of a Bourbon, Missouri, well 

core. Low activities have been found generally associated with high 

mineral density, which in turn is a function of magnetite content. V. S.

Daniels, Farrington.

(and Saunders, Donald F.). The tbermoluminescence of rocks [abs.]: Science, 

v. Ill, no. 2887, p. 462, Apr. 28, 1950.

Danner, Wilbert R.

Permian of northwestern Washington [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12. 

pt. 2, p. 1521-1522, Dec. 1950.

Dapples, Edward Charles. See also Sloss, L. L., 4.

(and Krumbein, William Christian, and Sloss, Laurence Louis). The organization of sedimentary rocks: Jour. Sed. Petrology, v. 20, no. 1, p. 3-20, 

Apr. 1950. The constituents of sediments are examined, and a classification is proposed, designed for rapid determination of sedimentary 

rocks with the use of the binocular microscope. Specific conglomerate, 

sandstone, shale, and limestone varieties are listed and arranged in 

groups to indicate their associations. V. S.

Darrah, William Gulp.

1. Notes on Lepidodendropsis: Ealeobot. Notices 1, 16 p. (t), illus., Mar. 24, 

1949. Privately published, 122 Lincoln Road, Medford 55, Mass. The 

status of the genus Lepidodendropsis is discussed, taking into consideration earlier descriptions of species of Stigmaria and Lepidodendron.

2. Paleozoic lepidodendroid embryos: Paleobot. Notices 2, 40 p. (t), illus., 

July 5, 1949. Privately published, 122 Lincoln Road, Medford 55, Mass. 

Paleozoic coal ball material yielded many specimens of Lepidodendron 

glabrum, several of which showed gametophytes and embryos in various 

states of preservation. The material is described and discussed, and 

conclusions are presented.

Davidson, D. F. See McKelvey, V. E., 3. 

Davidson, Norman, 1918-1949. See Milton, C., 1.

Davidson, R. N.

Hydrothermal alteration effects in the Leadville [Colo.] limestone and their 

relation to metallization [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1551, Dec. 1950.

Davies, James F.

Geology of the Wanipigow River area, Rice Lake Mining Division, Manitoba: 

Manitoba Dept. Mines and Nat. Res., Mines Branch, Pub. 49-3, 21 p., 

geol. map, 1950. The Wanipigow River area, in southeastern Manitoba, 

is underlain by interbandecl pre-Carnbrian volcanic and sedimentary 

rocks of the Rice Lake group, intruded by large masses of basic to 

1 acid rocks and mantled by the younger pre-Cambrian San Antonio 

quartzite. Local petrology, structure, and gold and nickel mineralization are described. V. S.

Davies, William E.

The caves of Maryland: Md. Dept. Geology, Mines and Water Res. Bull. 7, 

70 p., illus., 1950. Approximately fifty caves in Maryland are described, 

some in greater detail than others, and maps of fourteen are included.

Davis, Donald McClure. See Hazzard, J. C., 3.
74 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Davis, Donald Wilfred.

(and others). Electron micrographs of reference clay minerals: Am. Petrol. 

Inst Project 49, Clay Mineral" Standards, Prelim. Rpt. 6, 17 p. (t), 

illus., Apr. 1950. Forty-two plates show excellent electron micrographs 

of representative clay specimens from various typical localities in the 

United States and Europe. The magnifications range from li,500 to 

53,900 times. The methods used in preparation of the specimens for 

photographing are described.

Davis, F. J. See Stead, F. W., 1.

Davis, Fenelon F.

Mines and mineral resources of Alameda County, California: Calif. Jour. 

Mines and Geology, v. 46, no. 2, p. 279-348, illus,, Apr. 1950. The mineral resources of Alameda County, on the eastern shore of San Francisco 

Bay, consist mainly of sand, gravel, salines from sea water, and clay. 

The geology of the area and of the occurrences of these and other 

less abundant minerals is described. A tabulated list and map of 

principal mines and deposits are included. V. S.

Davis, Gordon Leslie.

Radium content of ultramaflc igneous rocks; 3. Meteorites: Am. Jour. Sci., 

v. 248, no. 2, p. 107-111, Feb. 1950. "Measurements of the radium content of some pallasites and iron meteorites have been made by a 

refinement of the vacuum fusion technique. In general, the radium 

content of the meteorites investigated is lower than that of terrestrial 

ultramafic rocks and minerals. Radium contents are also given for one 

stony meteorite and one amphoterite."

Davis, Leon Virgil.

1. Ground water in the Pond Creek Basin, Caddo County, Oklahoma: Okla. 

Geol. Survey Mineral Rpt. 22, 23 p. (J), illus., 1950. Briefly describes 

the Permian and Quaternary deposits, and gives data on several drilled 

wells, quality of water, and fluctuations of ground-water level.

2. Test drilling the Rush Springs sandstone [abs.] : Okla. Acad. Sci. Proc., 

v. 29 (1948), p, 43, Mar. 1950.

Dawson, K. R.

Northwest Dasserat Township, Temiscamingue County, Quebec (report and 

map) : Canada Geol. Survey Paper 50-3, 27 p. ($), geol. map, 1950. 

The area of the northwest quarter of Dasserat Township, Temiscamingue 

County, western Quebec, is underlain by Keewatin volcanics, postKeewatin intrusives, and Proterozoic sediments and diabase dikes, The

rocks are mapped and described, with attention to structures and gold 

deposits. V. S.

Day, Willard L.

(and Galbraith, George). Notes on the Round Top field, Fisher County, Texas: 

Abilene Geol. Soc., Geol. Contr., p. 66-67, illus., 1950. Notes on the 

producing horizons of the Round Top field.

De Alba, Alonso.

Exploraci6n de la zona norte en 1948-1949 y perspectivas de nuevas reservas: 

Asoc. Hex. Ge61. Petrol. "Bol., v. 2, no. 6, p. 371-380, illus., June 1950.

Geological and geophysical exploration for oil and gas in the Tampico. 

Basin, Mexico, during 1948 1949, is reviewed by districts, and the*

potentialities of each area are appraised briefly. V. S.

Deane, Roy Eric.

Pleistocene geology of the Lake Simcoe district, Ontario: Canada Geol. Survey 

Mem. 256. 108 p., illus. incl. geol. maps, 1950. The physiography, bed- r~ocK geology, ana Pleistocene deposits 01 tne Late simcoe region,

southwestern Ontario, are described. Glacial Lake Algonquin and the 

associated beaches are discussed, and the geologic history of the area 

during deglaciation is outlined. A geologic map, and one of physiographic divisions, are included.
BIBLIOGRAPHY 75

DeBuchananne, George D. .

Ground water in relation to mining in the southeastern states, in Snyder, 

F. G., ed., Symposium on mineral resources of the southeastern United 

States, p. 223-227,1950. The importance of ground water in connection 

with mining is discussed, using several examples from operations in 

the southeastern United States.

Decker, Charles Elijah.

1. Ordovician graptolites from well-core, Calhotm County, Michigan: Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 9, p. 1903-1909, illus., Sept. 1950. 

Graptolites and associated forms from the Utica shale of Ordovician 

age, in Calhoun County, Michigan, are listed and illustrated. The 

significance of each form is indicated briefly. V. S.

2. Ordovician graptolites from south-central Yukon: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 11, p. 2223-2224, illus., Nov. 1950. Eight specimens 

of Ordovician graptolites from shales in the Pelly Mts., south-central 

Yukon, characteristic of the Athens and Normanskill faunas, are 

identified and illustrated. V. S.

Decker, Robert W.

A study of the upper Horton sediments in northern Nova Scotia and on Cape 

Bretqn Island: Nova Scotia Dept. Mines Ann. Ept. 1949, p. 129-167, 

illus., 1950. The stratigraphy, correlation, sedimentology, structures, 

and economic potentialities of the Horton sediments of Mississippian 

age are described. V. S.

Deevey, Edward Smith, Jr.

Hyroids from Louisiana and Texas, with remarks on the Pleistocene biogeography of the western Gulf of Mexico: Ecology, v. 31, no. 3, p. 334-367, 

illus., July 1950.

DeFord, Ronald Kinnison. See also Donegan, B.

Geology of Marfa Basin [Texas] [abs.]: Oil and Gas Jour., v. 49, no. 32, p. 102, 

Dec. 14, 1950.

DeGolyer, Everette Lee.

Memorial, Ezequiel Ordonez (1867-1950) : Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 5, p. 985-989, port., May 1950.

Dehlinger, Peter.

Vibrations of transverse waves in southern California earthquakes and corresponding fault movements [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1544, Dec. 1950.

de Laguna, Wallace.

1. Geologic history of Long Island: N. Y. Water Power and Control Comm. 

Bull. GW-18, p. 25-46, 1949. An interpretation of the geologic events 

of pre-Cretaceous time, and the Cretaceous, Tertiary, and Quaternary 

periods, as derived from well-record data, is presented.

2. (and Perlmutter, Nathaniel M.). Tables of geologic correlations of well 

logs in Long Island: N. Y. Water Power and Control Comm. Bull. 

GW-18, p. 47-138, 1949. Separate tables are given for each county 

Kings, Queens, Nassau, and Suffolk.

De la 0. Carreno, Alfonso.

Cartas de anomalias de la gravedad en la Republica Mexicana: Ing. 

Hidraulica Mexico, v. 3, no. 4, p. 23-35, illus., Oct-Dec. 1949; Soc. 

Geol. Mexicana Bol., t. 14, p. 23-38, illus., 1949. Maps of the tectonics 

and of total-gravity and Bouguer anomalies of Mexico are given and 

discussed as to underlying data and the regional and structural geology 

indicated., V. S.

Delario, A. J.

Minerals in medicine: Rocks and Minerals, v. 25, nos. 11-12, p. 580-594, 

Nov.-Dec. 1950. Thirty-five elements and their compounds that are of 

use in the treatment of disease are discussed. A brief historical 

sketch is given for each, and the principal mineral sources, refined 

products, and medicinal uses are tabulated.
76

Delavault, Robert E. See Warren, H. V., 1, 2, 3.

Delo, David Marion.

1. Geology faces the mid-century: Tulsa Geol. Soc. Digest, v. 18, p. 77-83, 

^950. General comments on the geological profession and on the 

establishment of the American Geological Institute.

2. The American Geological Institute: Compass, v. 28, no. 1, p. 3-6, illus., 

Nov. 1950. Briefly presents the background, purpose, and aims of the 

organization.

3. Program of the American Geological Institute [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1565, Dec. 1950.

De Ment, Jack Andrew.

1. Fluoroanalysis in petroleum exploration, in Subsurface geologic methods, 

p. 320-329, illus., Colo. School of Mines, 1950. Various methods of 

fluoroanalysis are described.

2. Los rayos ultravioleta en la exploraci6n petrolera Prospecting for oil with 

ultraviolet rays: Petr61eo Interamericano, v. 8, no. 1, p. 26-27, illus., 

Jan. 1950. (Spanish and English.) Discusses the fluorescence of oil 

under ultraviolet light and analyses of soil samples and cores in the 

field and laboratory as an aid to prospecting and well drilling. V. S.

3. Hints for uranium prospector : Mineralogist, v. 18, no. 6, p.. 283-289, June 

1950. Useful information on Geiger counters, sample collecting, assaying, counter response to other elements than uranium, and bead testing 

for uranium.

4. Uranium in the polar regions: Mineralogist, v. 18, no. 9, p. 410-412, Sept. 

1950. General comments on the possibility and the implications of the 

occurrence of radioactive minerals in polar regions and brief notes on 

three localities in Greenland.

5. Uranium in fossil bone: Mineralogist, v. 18, no. 11, p. 514-515, illus., Nov. 

1950. Describes and gives autoradiographs of fossilized bones from 

Utah. Specimens of calcareous bone assayed approximately 0.02 percent 

pitchblende-equivalent radioactivity, but silicified bone was much less

radioactive. 

Denham, Richard Lane. See Colle, J. O.

Denis, Theophile Constant. See Dresser, J. A.

Denison, Robert Rowland.

A new arthrodire from the New York State Devonian: Am. Jour. Sci., v. 248, 

no. 8, p. 565-580, illus., Aug. 1950. "The trunk carapace of a new species

of arthrodire, PJtlyctcenaspis 37ierwoodi, is described. Its occurrence in

the Late Devonian continental sediments near Gilboa, New York, is surprising, since it belongs to the primative and typically Early Devonian 

family, Phlyctsenaspidae. The suggestion is made that slowly evolving

arthrodire stocks persisted throughout most of the Devonian in a fresh,

water environment, while the main radiation of the order was taking 

place in the seas."

Dennen, William Henry.

Variations in chemical composition across igneous contacts [abs.] ; Geol. SOC,

Am. Bull., v. 61, no. 12, pt. 2, p. 1454, Sec. 1950. 

Denning, Reynolds McConnell,

Demonstration of the double refraction of aragonite for rays traveling in the neigiiDoriiooa or an optic axis; Am. Mineralogist, T. 30, nos. T 8) p.

598-601, illus., July-Aug. 1950. "The purpose of this note is to call

attention to the fact that the demonstration of 'internal conical refraction' is facilitated by the use of the universal stage and that an

unusually accurate axial angle determination can be made for I^oth the

primary and secondary optic axes."
BIBLIOGRAPHY 77

Dennis, Philip Eldon.

1. (and Akin, Philniore Donald, and Jones, Suzanne L.). Ground water in 

the Wyndmere area, Richland County, North Dakota: N. Dak. Geol. 

Survey Ground-water Studies no. 13, 59 p., illus. incl. geol. sketch map, 

Dec. 1949. The water-bearing units in the Wyndmere area in southeastern North Dakota are the Dakota (?) sandstone of Upper Cretaceous age, and also the sands of the Sheyenne delta and the glacioaqueous deposits associated with till, both of Pleistocene age.

2. (and Akin, Philmore Donald, and Jones, Suzanne L.). Ground water in 

the Kindred area, Cass and Richland Counties, North Dakota: N. Dak. 

Geol. Survey Ground-water Studies no. 14, 75 p., illus. incl. geol. map, 

1950. In the Kindred area in southeastern North Dakota, ground water 

occurs in the Pleistocene delta deposits, lacustrine deposits, and tills, 

and to a lesser extent in Cretaceous (?) shale. The two most important aquifers are in sands of the Lake Agassiz deposits.

3. (and Akin, Philmore Donald). Ground water in the Portland area, Traill 

County, North Dakota: N. Dak. Geol. Survey Ground-water Studies no. 

15, 50 p. ($), illus., 1950. The Portland area in eastern North Dakota 

lies in the Red River Valley and is drained by the Goose River and its 

branches. The water-bearing characteristics of the alluvium, glacial 

deposits, and Dakota sandstone are described. Chemical data on the 

ground water are included.

Denny, Charles Storrow. See also Raup, H. M.

Pleistocene studies of the U. S. Geological Survey and their relation to soils 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12,«pt. 2, p. 1565-1566, Dec. 1950.

Denson, Mayette Elner, Jr.

Longitudinal waves through the earth's core [abs.]: Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1545, Dec. 1950.

Denson, Norman Maclaren.

The lignite deposits of the Cheyenne River and Standing Rock Indian Reservations, Corson, Dewey, and Ziebach Counties, South Dakota, and Sioux 

County, North Dakota: U.,8. Geol. Survey Circ. 78, 22 p. (t), illus. 

incl. geol. map, July 1950. A brief survey of the stratigraphy of the 

area, with more detailed information on the lignite occurrences and 

mines. The work represents a part of the Missouri River Basin development program.

Derruau, Max.

Le Paricutin: Revue Geographic Alpine, t. 39, fasc. 2, 325-330, 1951. A 

general account of the beginning of Paricutin volcano in Mexico in 

1943, the building of the cone, erosion, and other features of interest.

Derry, Duncan Ramsay.

1. Lithium-bearing pegmatites in northern Quebec: Econ. Geology, v. 45, no. 2, 

p. 95-104, illus. incl. geol. map, Mar.-Apr. 1950; abs., Geol. Soc. Am. 

Bull., v. 59, no. 12, pt. 2, p. 1317-1318, Dec. 1948. An unusual uniformity 

of texture and spodumene content is reported in the lithium-bearing 

pegmatite dikes located along the margins of a pre-Cambrian granitic 

stock in LaCorne Township, north of Val D'Or, Quebec. The spodumene 

content of one series averages 25 percent. V. S.

2. A tectonic map of Canada: Geol. Assoc. Canada Proc., v. 3, p. 39-53, illus., 

Dec. 1950. The compilation of the tectonic map of Canada, published in 

November 1950, is described briefly. Notes on the various teutonic regions are also given.

Desjardins, Louis Hosea.

1. Photogeology in the Texas Gulf Coast: Mines Mag., v. 40, no. 10, p. 97-101, 

illus., Oct. 1950. Photogeologic interpretations of four selected areas in 

four different coastal belts of Texas are presented. The belts are 

Pleistocene, Pliocene, Eocene (Yegua formation), and Eocene (Cook 

Mountain formation).

980682° 52 6
78 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Desjardins, Louis Hosea Continued

2. Structural contouring for the photogeologist, in Symposium of information 

relative to uses of aerial photographs by geologists: Photogrammetric 

Engineering, v. 16, no. 5, p. 784-796, illus., Dec. 1950. Several methods 

for structural contouring by photogeology are presented, particularly 

where no elevation control is available.

3. Techniques in photogeology: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 12, 

p. 2284-2317, illus., Dec. 1950. Techniques of advanced photogeologic 

work are discussed with respect to apparatus, photo mounting, topographic contouring, geologic annotations, photogrammetric aids, dip 

measurement, preparation of stratigraphic columns and sections, and delineation of structures. A bibliography is given. V. S.

De Terra, Hellmut.

Radiocarbon age measurements and fossil man in Mexico: Ciencia, v. 10, DOS. 

7-8, p. 209-210, Oct. 15, 1950. Comments on the radiocarbon age determinations of plants from prehistoric sites in the Basin of Mexico, and 

relates them to the age determinations for human occupation.

DeVries, R. C. See Osborn, E. F., 2.

deWit, R.

(and McLaren, Digby Johns). Devonian sections in the Rocky Mountains 

between Crowsnest Pass and Jasper, Alberta: Canada Geol. Survey 

Paper 50-23, 66 p. ($), illus., 1950. The stratigraphy and faunal 

sequence of the Devonian formations between Crowsnest Pass and Jasper, Alberta, are described. Measured columnar sections of nine localities and tables of fossil occurrences by formation are given. V. S.

de Witt, Wallace, Jr. See Pepper, J. F.

Diaz Lozano, Enrique. See also Salas, G. P;

Jos<§ G. Aguilera (1857-1941) ; Asoc. Mex. Geol. Petrol. Bol., v. 1, no. 2, p. 181- 

185, port., Dec. 1949.

Dibblee, Thomas Wilson, Jn

Geology of southwestern Santa Barbara County, California; Point Arguello, 

!Lompoc, Point Conception, Los Olivos, and Gaviota quadrangles : Calif. 

Dept. Nat. Res., Div. Mines Bull. 150, 95 p., illus. incl. geol. maps, June 

1950. A detailed study of the stratigraphy, structure, and geologic fiigtory of the area, accompanied by geologic maps, a tectonic map, and 

structure sections. The strata range from Jurassic to Pleistocene. The 

report also gives data on the economic minerals, including Oil and gas, 

diatomite, and limestone. The Capitan, Lompoc, and Zaca oil fields are 

briefly described.

Dickey, Parke Atherton. See Russell, 0. D,

Dict2, Robert Sinclair. See Emery, K. O., 1; LaFond, B. 0.

Digman, Ralph E. See also Mikami, H. M.

An exposure of the Triassic eastern border fault in Connecticut: Am. Jour. Sci., 

V. 248, no. 1, p. 37-45, illus., Jan. 1950; reprinted as Conn. State Geol. 

and Nat. History Survey, Misc. Ser. no. 2, 1950. An extensive exposure,

north of I>ake Quonnipaug, shows a three-foot band of fault gouge 

separating Triassic trap rock on the west from pre-Triassic Bolton

schist on the east, both highly brecciated, Evidence confirms the high--

%ngle, normal character of the fault. V. S.

Billing, E. Don. See Kauffman, A. J., Jr., 1.

Dings. McClelland Griffith.

Arizona zinc and lead deposits; Wallapai mining district, Mohave County, 

Arizona: Ariz. Bur. Mines Bull. 156, Geol. Ser. 18, p. 138-142, geol. 

map, Apr. 1950. The rocks, structure, and ore mineralization of the 

area are described briefly. .
BIBLIOGRAPHY 79

Dirmeyer, Richard D., Jr.

Geology and irrigation engineering, in Applied geology, a symposium: Colo. 

School of- Mines Quart., v. 45, no. IB, p. 123-153, illus., Jan. 1950. In 

discussing the relationship of geology to irrigation-engineering design, 

some of the points touched upon are the functions of an engineering 

geologist, the geologic information necessary in connection with dam, 

reservoir, tunnel and canal sites, exploration, methods, materials testing, and engineering geology reports. Discussion is by R. F. Rhoades.

Dobbin, Carroll Edward.

1. The petroleum geology of Colorado, in Applied geology, a symposium: Colo. 

School of Mines Quart., v. 45, no. IB, p. 1-37, illus., Jan. 1950. "Maps, 

charts, tables, and a relatively short text summarize the geologic history of Colorado, the history of oil and gas development, the age of 

the oil and gas zones, the types of oil and gas structures, the occurrences 

of rich helium and carbon dioxide gases and' oil shale,, and the oil 

possibilities." Discussion by H. W. Oborne, W. 0. Thompson, M. M. 

Travis, A. E. Brainerd, and M. W. Ball is included.

2. Edwin Harold Hunt (1897-1949) : Am. Assoc. Petrol. Geol. Bull., v. 34, 

no. 2, p. 341-343, port., Feb. 1950.

Dobrin, Milton Burnett.

Dispersion in seismic surface waves [abs.]: Oil and Gas Jour., v. 48, no. 51, 

p. 120, 123, Apr. 27, 1950.

Dobyns, D. Ray.

Geophysical exploration in the San Juan Basin, in Guidebook of the San Juan 

Basin, New Mexico and Colorado, p. 132, 1950. Brief notes on the use 

of various types of geophysical survey methods in the San Juan Basin.

Dodge, Burnham H.

Debris control, in Applied sedimentation, p. 336-346, illus., 1950. The factors 

that enter into the problem of debris are discussed and the methods 

of control in general use are described. The latter consist of watershed 

treatment, drop structures, check dams and barriers, and debris basins.

Dodge, Henry.

Suggested substitutes for the terms "lunule" and "escutcheon" in Pelecypoda: 

Jour. Paleontology, v. 24, no. 4, p. 500-501, July 1950. Proposes use of 

"sigilla" for "lunule" and "vallis" for "escutcheon." V. S.

Doll, H. G.

(and Martin, Maurice). Recent developments in electrical logging and auxiliary methods: Colo. School of Mines Quart, v. 45, no. 4A, p. 49-78, 

illus., Oct. 1950. The theory and development of electrical resistivity 

and spontaneous potential methods of well logging are outlined with 

special attention to recent advances in instruments, techniques, and 

interpretation. Consideration is given to problems of rock porosity, 

saturation, layer boundaries, true resistivity, and other factors. V. S.

Donegan, Ben.

(and DeFord, Ronald Kinnison). Ochoa is Permian: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 12, p. 2356-2359, Dec. 1950. Reviews the paleontologic 

evidence from various outcrops in New Mexico and Texas bearing on 

the age of the Ochoa series. Diagnostic fossils from the Rustler formation, collected near Rustler Spring, Texas, indicate a Permian age.

Donnay, Gabrielle Hamburger.

(and Buerger, Martin Julian). The determination of the crystal structure 

of tourmaline: Acta Crystallographica, v. 3, pt. 5, p. 379-388, illus., 

Sept. 1950. The method of determining the structure is described, and 

new values of the atomic coordinates, refined after computation of 

the structure factors for all observed hk.l reflections, are given.

Donnay, Joseph Desire Hubert. See also O'Brien, W. A.

(and Hamburger, Gabrielle Eva). One-dimensional representation of triperiodic functions [abs.]: Am. Mineralogist, v. 35, nos. 1-2, p. 123-124, 

Jan.-Feb. 1950.
80 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Donnerstag, Philip.

(and McAuslan, Edward B., and Galpin, Sidney Stewart). Sample study 

and correlation of C. C. Lobdell no. 1 well : N. Y. State Mus. Circ. 28, 15 p., 

1950. Lithologic analysis of well cuttings forms the basis for formation 

designation and thickness determinations. The C. C. Lobdell no. 1 

well is located in the New Berlin quadrangle, Chenango County, N. Y., 

and was drilled to a total depth of 5,701 feet. Cambrian, Ordovician, 

Silurian, and Devonian rocks were encountered.

Donovan, J. H.

Intertonguing of Green River and Wasatch formations in part of Sublette 

and Lincoln Counties, Wyoming: Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, p. 59-67, illus. incl. geol. map, 1950. Field investigations 

in the Bridger Basin of southwestern Wyoming indicate that the Green 

River formation is a lens of lacustrine sediments enclosed by the fluvial 

debris of the Wasatch and Bridger formations. The lithology, distribution, and depositional history of the strata are discussed.

Dott, Robert Henry.

1. Memorial, Charles Newton Gould, honorary member (1868-1949) : Tulsa 

Geol. Soc. Digest, v. 18, p. 84-88, 1950.

2. Morris Morgan Leighton, honorary member : Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 5, p. 975-977, port., May 1950.

3. Geology and industrial minerals of Oklahoma: Hopper, v. 10, no. 10, 

p. 91-100 ($), Oct. 1950. Lists the physiographic provinces, major 

subsurface structures, distribution of sedimentary strata, and distribution of industrial minerals in the state.

4. Geologic map of Oklahoma [abs.] : Am. Assoc. Petrol. Geol. Bull., v. 34, 

no. 3, p. 619, Mar. 1950.

Dougherty, Ellsworth Young.

Ribbon structure in gold-quartz veins : Econ. Geology, v. 45, no. 2, p. 177-179, 

Mar.-Apr. 1950. Discussion of the article by H. B. McKinstry and 

E. L. Ohle, Jr., Econ. Geology, v. 44, no. 2, p. 87-109, Mar. 1949.

Douglas, Robert John Wilson.

1. Callum Creek, Langford Creek, and Gap map-areas, Alberta : Canada Geol. 

Survey Mem. 255, 124 p., illus. incl. geol. maps. 1950. A detailed

stratigraphic and structural report of an area of Paleozoic and Mesozoic

strata in the Foothills belt of the Canadian Rocky Mts. The area is OD6 

Of complex structure In the Distxirbed belt and the Alberta syncline, and

the study has been made to facilitate structural interpretation in connection with petroleum exploration.

2. Preliminary map, MOUDt Head, Alberta (map and structure sections) : 

Canada Geol. Survey Paper 50-8, geol. map, 1950. Th6 area Of Mount

Head, southwestern Alberta, is underlain by folded and thrust-faulted 

MeSOZOlC and PaleOZOlC Sediments. The latter outcrop in the Sign

Rock Range and Highwood Range. MeSOZOlC FOCfcS lie between these

ranges and east of the Highwood Range. V. S.

Dowd, James Joseph.

1, (Sad OtnerS). Estimate Of known recoverable reserves of coking coal in

Cambria County, Pa.' U. S. Bltf, MlMS Bpt. Iny. 4734, 25 p. <»,, m«...

oct. 1950. This report is the first in a series of county reports on

Of COklllg COal, Undertaken as a part of the investigation of

resources. The reserve statistics are glVGD ifl detail. Pis' Of the reserves is snowil 0~ ou«i,,0 cnnn£ ai>s

2. (and others). Estimate Of known recoverable reserves oi cosing coui 1= 

Indiana County, Pa.: U. S. Bur. Mines Rpt. Inv. 4757, 22 P. (I), lllUS,, 

Dec. 1950. One of a series of county reports on coking coal reserves

Bowling, Jorn D.

Geologic problems of a portion of the Missouri River Basin project [abs.] : 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1551, Dec. 1950.
BIBLIOGRAPHY 81

Downs, Harold Robert. See also Miller, A. K., 2, 3, 5; Youngquist, W. L., 1. 

(and Youngquist, Walter Lewellyn). Conodonts from the Cedar Valley limestone of Iowa: Jour. Paleontology, v. 24, no. 6, p. 667-672, illus., Nov. 

1950. "A sparse conodont assemblage has been collected from thin shale 

partings in the lower portion of the Rapid member of the Cedar Valley 

limestone in southeastern Iowa. Four genera, Eindeodella, Icriodus, 

Ozarkodina, and Polyynathus are represented, and the better specimens 

of these are described and illustrated. The general aspect of the 

assemblage is compatible with a Middle Devonian assignment of these 

beds."

Dowse, Alice M.

New evidence on the Cambrian contact at Hoppin Hill, North Attleboro, Massachusetts: Am. Jour. Sci., v. 248, no. 2, p. 95-99, illus., Feb. 1950. 

Describes an exposure of the sedimentary contact between the lower 

Cambrian basal quartzite and Dedham granodiorite, confirming the 

pre-Cambrian age of the Dedham-Salem group. V. S.

Dozy, J. J.

Some notes on the volcanoes of Guatemala: Bull. ,Volcanologique (Assoc. 

Volcanologie Union G6od6sique GSophysique Internationale), ser. 2, 

v. 8, p. 47-67, illus., 1949. Describes several recent volcanoes in Guatemala, among them Atitlan, Toliman, Acatenango-Fuego, Agua, and 

Pacaya, lakes of volcanic origin, Tertiary and Quaternary volcanic 

deposits, and the structure of the pre-volcanic basement. Numerous 

aerial photographs are included.

Dragsdorf, R. D. See Parkert, C. W. 

Draisin, Wilburt M. See Larsen, B. S., Jr., 1.

Dresser, John Alexander.

(and Denis, The'ophile Constant). Geology of Quebec, Volume III, Economic 

geology: Quebec Dept. Mines, Geol. Rpt. 20, x, 562 p., illus. incl. geol. 

maps, 1949. The volume is divided into 3 sections: gold deposits 

grouped by regional occurrence, other metal deposits, and industrial nonmetallic deposits. The descriptions include information on general 

geology, structure, mineralization, ores, mining operations, and production. Numerous geological sketch maps and vertical sections are 

included.

Dreyer, Robert Marx. See also Garrels, R. M.

(and Horr, W. H.). Plant remains from the Arkansas bauxite [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1454, Dec. 1950.

Dudley, Paul Harwood. See also Hazzard, J. C.,,3.

Oil prospects of northeastern Nevada and northwestern Utah [abs.] : Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 12, p. 2380, Dec. 1950.

Duffner, Ralph T., 1919-1950. See Read, C. B., 2, 3.

Dugas, J.

Perth map-area, Lanark and Leeds Counties, Ontario (report and,map): 

Canada Geol. Survey Paper 50-29,19 p. (i), geol. map, 1950. The Perth 

area is located south of Ottawa, on the boundary of the Canadian Shield 

and the Ottawa-St. Lawrence Lowland. The pre-Cambrian rocks are 

metamorphics of the Grenville series and post-Grenville intrusives. 

Ordovician sandstones and dolomitic limestones are found in the 

eastern part of the area. The structure and economic geology of the 

area are noted.

Dunaven, Ruth Reece. See Thorn, E. M.

D unbar, Carl Owen.

The species concept; further discussion: Evolution, v. 4, no. 2, p. 175-176, 

June 1950. Comments on the discussion of the species concept by B. H. 

Burma and Ernst Mayr in Evolution, v. 3, pi 369-373, Dec. 1949.
82 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

i 

Duncan, Donald Cave. See also Lochman, C. 3.

(and Belser, Carl). Geology and oil-shale resources of the eastern part of 

the Plceance Creek Basin, Rio Blanco and Garfield Counties, Colorado: 

U. S. Geol. Survey Oil and Gas Inv. Map OM 119. 1950. An index 

map, cross section, structural map, and columnar sections are shown, 

together with a text giving the stratigraphy of the Green River formation in this area and the characteristics of the oil-bearing rocks.

Dunham, Kingsley Charles.

1. (editor). Symposium on the geology, paragenesis, and reserves of the ores 

of lead and zinc: Internat. Geol. Cong., 18th, Great Britain, Rpt. pt. 7, 

400 p., illus., 1950. The symposium contains 33 papers; 11 concern 

Canada, United States, and Mexico. These are cited individually under 

C. 0. Swanson; T. L. Tanton and J. M. Harrison; C. H. Behre, Jr., A. V. 

Heyl, Jr., and B. T. McKnight; A. L. Brokaw; A. W. Finger; P. J. 

Shenon ; R. N. Hunt and H. G. Peacock; S. G. Lasky and A. D. Hoagland ; 

E. B. Young; J. Gonzalez Reyna; G. M. Fowler, R. M. Hernon, and E. A. 

Stone. A valuable summary of the geology, production, and reserves 

of world lead and zinc mines has been compiled by the editor.

2. Petrography of the nickeliferous norite of St. Stephen, New Brunswick: Am. 

Mineralogist, v. 35, nos. 9-10, p. 711-727, illus., Sept.-Oct. 1950. "The 

St. Stephen complex comprises harzburgite, olivine-norites (including 

banded troctolitic and anorthositic types) and olivine-hypersthene gabbro, of presumed Devonian age. It is intruded into quartz-chlorite-mica 

phyllites of the Charlotte group, which show little contact metamorphism." The petrology is discussed on the basis of the petrographic 

descriptions. Chemical analyses, norms, and modes are given.

Dunkle, David Hosbrook. See Schaeffer, B. 

Dunn, Paul Heaney.

(and Hayes, William E.). Arenaceous Foraminifera found weathered free 

from the Silurian of Missouri [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1454-1455, Dec. 1950.

Durham, John Wyatt.

1. The 194O E. W. Scripps cruise to the Gulf of California, Part 2, Megascopic 

paleontology and marine stratigraphy: Geol. Soc. Am. Mem. 43, vii, 

216 p., illus., Aug. 10, 1950. The major part of the report consists of

systematic descriptions of the species of Mollusca, echinoids, corals, and

barnacles collected from islands in the Gulf of California and Lower 

California. Of the 273 species described, 43 are new. Pelecypods and 

gastropods predominate. The Gulf of California faunal province is 

discussed; notes on the age and correlation of the strata are included; 

ana a bibliography is listea. A note by J. A. Cushiiuin on an occurrence

of Ramulina is given. "

2. Cenozoie marine climates of the Pacific Coast: Geol. Soc. Am. Bull., v. 61, 

no. 11, p. 1243-1263, illus., Nov. 1950; abs., no. 12, pt. 2, p. 1537, Dec.

1950. "The data available from the regions surrounding the Pacific

Ocean during the early Tertiary indicate that the poles and continents 

could not have been in the positions postulated by Wegener, DuToit,

or Grabau, but were in approximately the same position as at present.

During the Paleocene, the 20° C. marine isotherm was north of 49° 

INT. int., by middle Oligocene time it na<l startea to Shift south . . ., by

middle Pliocene it had approached its present position, During tne

Pleistocene it oscillated both northwards and southwards."

3. Pacific Basin and continental drift [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12,

pt. 2, p. 1522, Dec. 1950.

4 ( and Kirk. Mahlon V.). Age of the Coralliochama beds of the Pacific Coast [abs.]; Geol. goc. Am, Bun,, y, 01, no, 12, pt, 2, p, 1D3T, D6C, 1900,

Durrell, Cordell.

Strike-slip faulting in the eastern Sierra Nevada near Blairsden, California 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt, 2, p. 1522, Dec. 1950.

Dutro, J. Thomas, Jr. See Bowsher, A. L.
BIBLIOGRAPHY 83

Button, Carl Evans.

Progress of geologic work in Iron and Dickinson Counties, Michigan: U. S. 

Geol. Survey Circ. 84, 7 p. (t), illus. incl. geol. maps, Sept. 1950. In 

northern Michigan, recent work has considerably advanced knowledge 

of the stratigraphy and structure of the highly deformed Huronian ironbearing sedimentary rocks. The strata, structures, and results of aeromagnetic surveys are described briefly, and preliminary maps are included. . V. S.

Duvall, Wilbur I. See Obert, L. 

Dysart, Arthur.

Sketches of canyons, outcrops and mineralogy near Riverside, Washington: 

Mineralogist, v. 18, no. 1, p. 24-28, illus., Jan. 1950. Describes the 

Okanogan Valley, particularly Tunk Creek Canyon, and notes thulite, 

epidote, tourmaline, muscovite, and other crystals. V. S.

Eakin, Thomas E.

1. Preliminary report on ground water in Fish Lake Valley, Nevada and 

California: Nev. State Engineer's Office, Water Res. Bull. 11, p. 7-33, 

illus., 1950. Fish Lake valley is situated in Esmeralda County, southern 

Nevada, on the California border. The geology is briefly reviewed, and 

ground water conditions are discussed.

2. (and Robinson, Thomas William, Jr.). Ground-water conditions in Whisky 

Flat, Mineral County, Nevada. 5 p. ($), Nevada State Engineer's Office, 

1950. Brief report of a reconnaissance study.

Eardley, Armand John.

1. (editor). Petroleum geology of the Uinta Basin: Guidebook to the Geology 

of Utah, no. 5, 152 p., illus., 1950. Contains brief articles on the stratigraphy, structure, gilsonite deposits, and oil and gas fields of the Uinta 

Basin, Colorado-Utah, contributed by O. E. Childs, M. D. Crittenden, 

H. J. Bissell, W. L. Stokes, M. D. Williams, A. N. Murray, G. E. and 

B. R. Untermann, H. L. Patton, V. E. Peterson, K. L. Gow, and J. R. 

Miller. The field trip of the Intermountain Association of Petroleum 

Geologists was held on June 15-17, 1950. Road logs are included.

2. Snake River region of'western Wyoming: Wyo. Geol. Assoc. Guidebook, 

Southwest Wyoming, p. 88-92, illus., 1950; abs., Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1455, Dec. 1950. Briefly presents the orogenic 

history of the Snake River region, south of Jackson on the WyomingIdaho boundary. Thrust faulting of Laramide age and high-angle 

faulting of both Laramide and late Tertiary age are described. A 

tectonic map of the area is included.

3. Structure and geomorphology of southwestern Montana [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1552, Dec. 1950.

Eargle, Dolan Hoye.

Geologic map of the Selma group in eastern Alabama: U. S. Geol. Survey Oil 

and Gas Inv. Prelim. Map no. 105. 1950. A geologic map on a scale 

of 1 inch"to 4 miles, and three columnar sections are accompanied by a 

text describing the stratigraphy of the Selma group (Upper Cretaceous) 

in the area.

Barley, James W.

Description and synthesis of the selenlde minerals: Am. Mineralogist, v. 35, 

nos. 5-6, p. 337-364, illus., May-June 1950. Presents the results of an 

investigation, by microscopic and X-ray methods, of natural and artificial selenides. Revised descriptions are given for naumannite, 

aguilarite, ecuairite, crookesite, berzelianite, umangite, clausthalite, 

tiemannite, klockmannite, penroseite, guanajuatite, and paraguanajuatite. The classification of the selenides as given in Dana (1944) 

is modified.

Easton, William Heyden.

1. Eastern mountain and desert region [Calif.], in Symposium on possible 

future oil provinces of the Pacific Coast region [abs.]: Am. Assoc. Petrol. 

Geol. Bull., v. 34, no. 12, p. 2385, Dec. 1950.

2. History of the Pacific Coast Branch of the Paleontological Society [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1537-1538, Dec. 1950.
84 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Eaton, Jerry. See Byerly, P., 3. 

Ebbutt, Frank.

Genetics of mineral deposits: Precambrian, v. 23, no. 6, p. 15, June 1950. A 

summary of an address, the main point of which is that recent mapping 

has emphasized the importance of structure and of the physical properties of rocks in the solution of problems of ore deposition and ore 

genesis.

Eckhardt, Engelhardt August.

Geophysical activity in 1949: Geophysics, v. 15, no. 3, p. 400-^08, illus., July 

1950; modified version, Oil and Gas Jour., v. 48, no. 51, p. 104-105, 124, 

127, illus., Apr. 27, 1950. A statistical account of geophysical operations the world over during 1949, both in the oil industry and the

mining industry. The part reprinted in the Oil and Gas Journal 

concerns only the oil industry.

Edinger, Tilly.

1. Die Palaoneurologie am Beginn einer neuen Phase: Experientia, v. 6, fasc. 

7, p. 250-258, illus., July 15, 1950. Endocranial casts of the stages in the 

evolutionary history of the horse have made it possible to trace the 

evolution of the brain through a period of 55 million years. It appears 

that the main trend has been greater expansion of the cerebrum, neopallium, and corresponding portions of the cerebellum than of the other 

brain portions. The results obtained indicate that further investigations of phyletic brain histories will contribute to the systematic 

assemblage of data on paleoneurology.

2. Frontal sinus evolution (particularly in the Equidae) : Harvard Coll. Mus. 

Comp. Zoology Bull., v. 103, no. 8, p. 412-496, illus., Aug. 1950. Study 

of fossil Equidae shows that the frontal sinus proper did not exist in 

early ancestors of the horse. It first appeared in the genus Merychippus 

in Middle Miocene time, probably as a result of cerebral expansion.

Edmundson, Raymond Smith.

The Valley and Ridge province, in The James River Basin, past, present and 

future, p. 514-552, geol. map, Va. Acad. Sci., 1950. Describes the stratigraphy of the Valley and Ridge province in western Virginia. The 

rocks range from Cambrian through early Mississippian in age. A

section on the mineral resources of the area, and brief notes on physiography and structure are included.

Edson, Fanny Carter, See Clair, J. R.

Edwards, Harold S.

South Haskell field, Haskell County, Texas: Abilene Geoi. soc., Geoi. contr.,

p. 20-23, illus., 1950, The history of the South Haskell field, stratigraphy, structure, and production are briefly described.

Ehlers, George Marion.

1. Revised classification of the Middle Devonian Detroit River group [abs.] : 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1455-1456, Dec. 1950.

2. (and Stumm, Erwin Charles). Occurrence of the Middle Devonian Columbus limestone near Ingersoll, Ontario [abs.]: Geol. Soc. Am. Bull.,

v. 61, no. 12, pt. 2, p. 1566, Dec. 1950.

Einstein, Hans Albert.

(and Johnson, Joe William). The laws of sediment transportation, in Applied sedimentation, p. 62-71, lllUS., 1350. The types of load transported by flowing water, wash load and bed-material load, are described, and the development ana application or Dea-ioixci eqxTu.tionS are discussed. Comments on roughness conditions and tractive force are

included. 

Eisenberg:, Jerome M. Teaching the earth sciences in tne secondary sc&oois-, uann »d. *>is^,

no. 10, p. 3-18, illus., May 1950; Pt. 2, v. 4, no. 11, p. 11-23, June 1950', 

Pt. 3, v. 4, no. 12, p. 17-21, July 1950. Report of the papers and discussion at the conference on teaching of earth sciences sponsored by the 

Earth Science Institute and held at Boston University, March 17-18, 

1950.
BIBLIOGRAPHY 85

Eitel, Wilhelm. See Comeforo, J. B.; Hatch, R. A.

Elias, Maxim Konrad.

1. Types of occurrence and position of Bryozoa in late Paleozoic sediments 

of the Midcontinent: Natl. Researcli Council, Report of the Committee 

on a treatise on marine ecology and paleoecology, 1948-1949, no. 9, 

p. 117-120, Dec. 1949. Bryozoa commonly occur in the brachiopod and 

mixed phases of late Paleozoic marine cycles; are absent in the shallowest, molluscan phases; and are rare in the deepest, fusulinid phase. 

They are found either scattered, or as nests, layers, or reef aggregations. . V. S.

2. The state of paleontology, in Symposium on fundamentals in paleontology: 

Jour. Paleontology, v. 24, no. 2, p. 140-153, illus., Mar. 1950. Discusses 

several problems that confront paleontologists, among which are time 

ranges of genera in relation to stratigraphic boundaries, stratigraphic 

interpretation of conflicting index fossils, variation in stratigraphic 

boundaries with evolution of fusulinid forms, the human variable in 

techniques, paleontologic versus genetic nomenclature, and taxonomy.

3. Paleozoic Ptychocladia and related Foraminifera: Jour. Paleontology, v. 24, 

no. 3, p. 287-306, illus., May 1950. The wall structure, chamber partitioning, and rnegalospheric generation indicate that Ptychocladia 

should be classified with the adnate Foraminifera rather than the 

ctenostomatous Bryozoa. A new family, Ptychocladiidae, is set up and 

its evolution and ecology are discussed. New species and varieties 

from the Pennsylvania!! of the United States are described. The 

classification of certain Russian forms is discussed.

4. Fenestella deissi (new name) from the Middle Devonian of Michigan, and 

related forms: Jour. Paleontology, v. 24, no. 3, p. 390-392, May 1950. 

Because Fenestella foraminosa Deiss is preoccupied, it is renamed 

F. deissi Elias. Its relation to other forms is indicated.

5. Paleontologic versus neontologic species and genera: Evolution, v. 4, no. 2, 

p. 176-177, June 1950. Comments on the discussion of the species concept by B. H. Burma and Ernst Mayr in Evolution, v. 3, p. 369-373, Dec.

1949.

6. How reliable are the current geologic age estimates [abs.]: Nebr. Acad. Sci. 

Proc., 60th Ann. Mtg., p. 16, May 1950.

7. Faunal migrations and Mississippian-Pennsylvanian problem [abs.] : Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1456, Dec. 1950.

Elizondo, Jesus Ruiz.

Sedimentos del jurasico en Mexico; Asoc. Mex. Geol. Petrol. Bol., v. 2, no. 1, 

p. 3-54, illus., Jan. 1950. Typical Jurassic «ediments of Mexico and 

their regional distribution are described and shown on lithofacies and 

isopach maps. Tectonic aspects related to the areas of deposition and 

sediment sources are discussed, and paleogeographic features outlined.

Ellis, Brooks Fleming.

(and Messina, Angelina Rose). Catalogue of Foraminifera, Supplement for

1950. no. 1: Am. Mus. Nat. History Spec. Pub., 765 p. ($), loose-leaf, 

illus., 1950; no. 2, 687 p., illus., 1950; no. 3, 709 p., illus., 1950; no. 4, 

711 p., illus., 1950. Continues the description and illustration of 

Foraminifera. Supplement no. 1 consists entirely of new forms described by Russian authors in the Russian literature, but excludes those 

previously included in volumes 1-30 of the catalogue.

Ellison, Lee A.

Metalliferous heavy sands on Staten Island: Staten Island Inst. Arts Sci. 

Proc., v. 12, no. 3, p. 61-65, Apr. 1950. Study of sands by flotation in 

liquids of high specific gravity and by chemical analysis indicates that 

the heavy portions consist chiefly of magnetite, ilmenite, and zircon. 

Possible origin from serpentine and granite pegmatites is suggested.

V. S.
86 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Ellison, Samuel Porter, Jr.

1. (and Wynn, W. Turner). Devonian microfossils, Andrews County, Texas: 

Am. Jour. Sci., v. 248, no. 11, p. 794-799, ilkis., Nov. 1950. "A fossiliferous interval containing conodonts and questionable trochiliscids 

(Charophyta) from the lowest Devonian rocks of the Three-Bar field, 

Andrews County, Texas, is interpreted as a stratigraphic admixture of 

Devonian age. This is evidence indicating a Devonian age for the pay 

zone of the Three-Bar field."

2. Subsurface Woodf ord black shale, west Texas and southeast New Mexico : 

Texas Univ. Bur. Econ. Geology Rpt. Inv. 7, 20 p., illus., Nov. 1950. 

Describes the lithology, paleontology, and distribution of the subsurface 

Woodf ord shale (Upper Devonian) in Texas and New Mexico, and 

correlates it with strata in Oklahoma, Kansas, Arkansas, and other parts 

of Texas and New Mexico. Paleogeographic data and a map are 

included.

Ellsworth, Hardy Vincent.

Lead-uranium ratios of two Saskatchewan pitchblendes: Natl. Research 

Council, Div. Geology and Geography, Rpt. of the Committee on the 

measurement of geologic time, 1949-1950, Exhibit C, p. 37-38 (t), Nov. 

1950. Lead and uranium determinations are giyen for pitchblende 

specimens from the vicinity of the Nicholson mine, Saskatchewan.

Ellsworth, Ralph I. See Havard, C. G.

Elsasser, Walter M.

1. The earth's interior and geomagnetism : Rev. Modern Physics, v. 22, no. 1, 

p. 1-35, illus., Jan. 1950. Existing seismic, chemical, mechanical, 

thermal, and magnetic knowledge on the interior of the earth, excluding 

the 30-50 kilometer thickness of the crust, is summarized. A bibliography is given. V. S.

2. Causes of motion in the earth's core: Am. Geophys. Union Trans. v. 31, 

no. 3, p. 454-462, illus., June 1950. "The investigation . . . shows that 

thermal convection provides the only satisfactory mechanism for the 

generation of motions. If 5-10 per cent as much radioactivity as that 

contained in the crust is concentrated in the central region of the earth

inside the Lehmann-Gutenberg discontinuity, convection in the fluid 

core will take place. A study . . . shows that other effects should 

be negligible as compared to the thermal effects."

Emery, Kenneth Orris.

1. (and Dietz, Robertf Sinclair). Submarine phosphorite deposits off California and Mexico : Calif. Jour. Mines' and Geology, v. 46, no. 1, p, T-15,

illus., Jan. 1950. Nodules containing phosphorite are described as to

their external and internal characteristics, fossil content, distribution

origin, formation, and economic value. v. s.'

2. A deep fathogram acrOSS the NOl'th AtMC OC6an I Am, JOlir. SCI., V. 248, 

nO, 2, p. 100-106, 111US. Inch map, Feb. 195O. The physiography, sedimentation, and geologic history of the North Atlantic uOOF are deduced

from echo-soxmcTlnss. r>ortioM of the record and a map of bottom topography are shown. t p D0f°g! 

s. A suggested origin of continental slopes and of submarine canyons ; Geoiogical Magazine, v. 87, no. 2, p. 102-104, Mar.-Apr. 1950. It is suggested

that thrusting along a Shear plane at the continental margins may have

which now, after isostatic readjustment, exist as Submarine canyons, 

Downwarped peneplains, known to exist below continental shelves, may 

have developed during the exposure or tne margins.

4. ironstone concretions and beach ridges of San Diego County, California ' Calif. JOlir, Mines ana Qeoiog^, v. 4e, no. 2, i>. 213-221. m^s., Apr. ±950'

"ironstone concretions are very abundant in sands of beach ridges in

San Diego County but are absent in the intervening areas. The ridges 

appear to be transverse sand dunes that accumulated alOflg Shorelines 

of the sea when it retreated from the Linda Vista terrace. The concretions formed after some weathering had occurred but before streams 

. had dissected the ridges."
BIBLIOGRAPHY 87

Emery, Kenneth Orris Continued

5. Contorted Pleistocene strata at Newport Beach, California: Jour. Sed. 

Petrology, v. 20, no. 2, p. 111-115, illus., June 1950. "An example of 

interformational folding in Pleistocene strata of southern California is 

ascribed to the sinking of a layer of beach sand into an underlying marsh 

deposit of sandy silt. The sinking is believed to have resulted from 

a higher bulk density of the sand than of the sandy silt. No lateral 

sliding was required."

6. (and Stevenson, Robert Everett). Laminated beach sand: Jour. Sed. 

Petrology, v. 20, no. 4, pi 220-223, illus., Dec. 1950. "The size distribution of sand grains that form laminae in beaches was investigated by a 

microscopical study of thin sections of naturally and artificially cemented beach sands. Median diameters of sand in the individual 

laminae range from much coarser to much finer than the median diameter of the entire sand samples, whereas the sorting coefficients in the 

individual laminae are generally smaller than for the whole sample."

7. Compaction of marine sediments [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1522-1523, Dec. 1950.

8. Offshore southern California, in Symposium on possible future oil provinces 

of the Pacific Coast region tabs.]: Am. Assoc. Petrol. Geol. Bull., v. 34, 

no. 12, p. 2384, Dec. 1950.

Emiliani, Cesare.

Introduction to a method for determining the physical characters of fossil 

environments: Jour. Paleontology, v. 24, no. 4, p. 485-491, illus., July 

1950. "The concepts of total mean, total standard deviation, and total 

variability of a thanatocoenosis are introduced. A method for determining the nature of a fossil environment by comparing the coefficients 

of total variability of living and fossil organisms is presented and 

illustrated by data derived from the smaller Foraminifera. A new unit 

of measure, the decamicron (D/t), is introduced,"

Emmons, Richard Conrad.

(and others).. Selected petrogenic relationships of plagioclase [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1456, Dec. 1950.

Enbysk, Betty B. Bee McLaughlin, K. P., 1.

Engel, Albert Edward John. See also Jahns, R. H., 3.

(and Engel, Celeste). Stratigraphy and metamorphic reconstitution of parts 

of the Grenville Series in the northwest Adirondacks; a report of progress [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1457, Dec. 1950.

Engel, Celeste. See Engel, A. E. J. 

Epstein, Samuel. See Urey, H. C., 1.

Erdman, Oscar Alvin. See also Lockwood, R. P.

Alexo and Saunders map-areas, Alberta: Canada Geol. Survey Mem. 254, 100 

p., illus. incl. geol. maps, 1950. The Alexo and Saunders areas, in the 

Foothills belt of west-central Alberta, are underlain by sedimentary 

 rocks of Devonian to Paleocene age, although no Permian and Triassic 

formations are present. The fossils collected have been identified and 

are listed. The area is characterized by widespread folding and faulting which is described in detail. Coal deposits and petroleum possibilities are considered briefly. V. S.

Ergin, Kazim.

1. Amplitudes of PcP, PcS, ScP, and ScS in deep-focus earthquakes [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1545-1546, Dec. 1950.

2. Energy ratios of waves reflected and refracted at a rock-water boundary 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1545, Dec. 1950.

Eric, John Howard. See Wiese, J. H., 1. 

Erickson, Max Perry. See Bateman, P. C.
88 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Esarey, Ralph Emerson.

1. (and Bieberman, Doris Franz). Guide book, third annual Indiana geologic 

field conference, May 13, 14, and 15, 1949, on Silurian formations and 

reef structures of northern Indiana. 19 p., illus. incl. geol. sketch map. 

Bloomington, Indiana. Indiana Dept. Couserv., Div. Geology. May 

1949. Contains the road log, columnar, sections of Silurian rocks, and 

brief descriptions and faunal lists for the Silurian formations in northern Indiana.

2. (and Bieberman, Doris Franz, and Bieberman, R. A.). Guide book, fourth 

annual Indiana geologic field conference, May 12, 13, and 14, 1950, on 

Stratigraphy along the Mississippian-Pennsylvanian unconformity of 

western Indiana. 23 p. ($), illus. incl. geol. sketch map. Bloomington, 

Indiana. Indiana Dept. Conserv., Div. Geology. May 1950. Contains 

the road log, a stratigraphic column 'Of Mississippian formations in 

Putnam County, and brief descriptions of the formations.

Espenshade, Gilbert Howry.

Occurrences of tungsten minerals in the southeastern states, in Snyder, F. G., 

ed., Symposium on mineral resources of the southeastern United States, 

p. 56-66, illus. incl. geol. map, 1950. The geology and mineralization 

in the Hamme tungsten district in Vance County, North Carolina, and 

Mecklenburg County, Virginia, are described in some detail accompanied 

by a geologic sketch map. Other tungsten occurrences in Virginia, 

North Carolina, South Carolina, Georgia, and Alabama are described 

briefly.

Espinosa, Roberto Onate.

Estudios geofisicos en la cuenca de Veracruz : Asoc. Mex. Ge61. Petrol. Bol., 

v. 2, no. 4, p. 291-297, illus., A;pr. 1950. The work and results of gravitational and seismic exploration for oil in the Veracruz basin, Mexico, 

are discussed in the light of local geology. Gravimetric and seismological maps are given. . V. S.

Esteve Torres, Adrian. See Toron Villegas, L., 1. 

Etherington, Thomas John.

Washington, in Symposium on possible future oil provinces of the Pacific Coast 

region [aos.] .- Am. ABSOC. petrol, ceoi. Bull., v. 34. no. 12, p. 2381-2382, 

Dec. 1950.

Evans, Charles Sparling.

Underground hunting in the Silurian of southwestern Ontario: Geol. ASSOC.

Canada Proc., v. 3, p. 55-85, lllllS. foci. gGOl. fflRP, D6C, 1950 ', RDS., Affl. Assoc. Petrol. Geol. pun., v. 34,- no. n, P. 2251, NOV . 1950.

descriptions of the Salina series and Guelph-Lockport series, both dOlOroites of Silwriivr. aee, n_r-e el^-en, together with structure Contour and 

JSODclCh IMPS. The pOSSlbllltieS Of Oil and gas occurrence are discussed,

and the relations to reef structures &¥$

Evans, Glen Louis.

Late Quaternary faunal succession in the southern High Plains [Texas] [abs.] :

li 8OC< A ' B"!1 -) V. 61, no. 12, pt. 2, p. 1457-1458, Dec. 195O.

Evans, Howard T., Jr.

1. (and Frondel, Clifford). StlldieS Of Uranium minerals (II) ; liebigite and 

uranothallite : Am. Mineralogist, v. 35, nOS. 3-4, p. 251-254, Mar.-Apr. 

1900. Optical ana x-my crystniiographic data are given for liebigite and it is shown to be identical with uranotnauite, wewgite «8 a ,

has priority, and uranothallite is discredited. The formula of hebiglte 

is CajlHCOsMOHaO.

2. Studies of uranium minerals, (VI) ; WalpUrgite! Am. MineralOglSt, Y. OO, 

nOi3, ir-lBj pi 1021-1027. ni«s.. Nojr.-Dec. 1950. Presents data on the

crystal morphology and Ifflifc C6ll Of WaipUFglte, U^rat^ v--^ 

uranium arsenate, using the Buerger precession method. On tflfi D&SIS 

of the volume of the unit cell, available data on composition and density 

are questioned. The most reliable formula appears to be that proposed 

by E. Fischer, 2BiaO3.UO8 .AsaOB .3H,0.
BIBLIOGRAPHY 89

Evans, John H.

Geophysical exploration for mineral deposits, Parts 1-2: Western Miner, v. 23, 

no. 8, p. 47-51, illus., Aug. 1950; no. 9, p. 56-58, 60, illus., Sept. 1950. 

The fundamentals of geophysical exploration for mineral deposits are 

indicated briefly, and uses of the electrical resistivity, spontaneous 

polarization, magnetic, and gravitational methods are illustrated by 

specific, separate or combined, applications to the search of various 

ores. V. S.

Evans, LaMar G. See Gibbs, H. L.

Evans, Oren Frank.

1. On the action of waves breaking against the edge of a submerged shelf: 

Jour. Geology, v. 58, no. 3, p. 281-282, May 1950. Observations on a 

submerged shelf in Crystal Lake, Michigan, show that over a 60-year 

period no ridge has been formed at the outer edge of the shelf by waves 

moving sediment shoreward. V. S.

2. Internal structure of shoestring sands: World Oil, v. 131, no. 1, p. 66-68, 

70, illus., July 1, 1950. The processes and structures constituting the 

development of the less known types of shoestring sands beach ridges, 

hook formations, ball types, channel sands, and river beds are described 

with attention to known examples and to oil exploration clues. V. S.

3. The structure of the Verden sandstone [abs.]: Okla. Acad. Sci. Proc., v. 29 

(1948), p. 42-43, Mar. 1950.

4. Transportation of sediments on the continental shelf [abs.]: Okla. Acad. 

Sci. Proc., v. 29 (1948), p. 59-60, Mar. 1950.

Everhart, Donald L.

1. Skaggs Springs quicksilver mine, Sononia County, California: Calif. Jour. 

Mines and Geology, v. 46, no. 3, p. 385-394, illus. incl. geol. maps, July 

1950. The general geology, mineralization, and structure of the Skaggs 

Springs mercury deposit, Sonorna County, California, are described. 

The chief ore mineral is metacinnabar, which is finely disseminated 

through the Cretaceous (?) sandstone. The ore averages 3 pounds of 

mercury per ton. V. S.

2. Quicksilver deposits of the Cachuma district, Santa Barbara County, California : Calif. Jour. Mines and Geology, v. 46, no. 4, p. 509-532, illus. incl. 

geol. map, Oct. 1950. The Cachuma district, in central Santa Barbara 

County, California, is underlain by the Franciscan, Knoxville, and 

Monterey formations. These rocks are cut by several sets of faults. 

Cinnabar occurs in fissures and fractures. The stratigraphy, structure, 

and deposits are described and mapped, with special attention to the 

Red Eock and Lion Den mercury mines. V. S.

3. Some features of the secondary redistribution of uranium in oxidation 

zones [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1458, Dec. 1950.

Evernden, Jack F. See Byerly, P., 1, 2.

Ewing, William Maurice. See also Press, F.; Tolstoy, I.

1. (and Tolstoy, Ivan, and Press, Frank). Proposed use of the T phase in 

tsunami warning systems: Seismol. Soc. Am. Bull., v. 40, no. 1, p. 53-58, 

Jan. 1950; abs., Geol. Soc. Am. Bull., v. 60, no. 12, pt. 2, p. 1954, Dec. 

1949; discussion by L. Don Leet, Seismol. Soc. Am Bull., v. 41, no. 2, 

p. 165-167, Apr. 1951; abs., Earthquake Notes, v. 21, nos. 1-2, p. 10-11, 

Mar.-June 1950. The occurrence of Pacific tsunamis through 1933- 

1948 has been found to correlate substantially with the presence 

of the short-period T .phase on earthquake seismograms. Examination 

of the evidence suggests the inclusion of T-phase recording instruments 

in tsunami warning systems. Leet disagrees with their findings. V. S.

2. (and others). Seismic refraction measurements in the Atlantic Ocean 

basin (Part 1) : Seismol. Soc. Am. Bull., v. 40, no. 3, p. 233-242, illus., 

July 1950. A reversed seismic refraction measurement 120 miles northwest of Bermuda in 2,800 fathoms of water identified the second layer 

with the ultrabasic layer and indicated absence of the granitic and 

intermediate layers. A thickness of 4,500 feet for the local sedimentary 

layer was obtained. The velocities observed are discussed and 

illustrated by travel-time curves. V- S.
90 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Ewing, William Maurice Continued

3. (and others). Geophysical investigations in the emerged and submerged 

Atlantic Coastal Plain; Pt. V, Woods Hole, New York, and Cape May 

sections: Geol. Soc. Am. Bull., v. 61, no. 9, p. 877-892, illus., Sept. 1950; 

abs., v. 57, no. 12, pt. 2, p. 1192, Dec. 1946. Seismic refraction measurements from the coast line to the edge- of the continental shelf were made 

at each of the three sections and show an unconsolidated layer, a semiconsolidated layer, and the basement. The sedimentary cross section is 

thickest at Cape May, less at New York, and much less at Woods Hole.

4. (and Press, Frank). Crustal structure and surface-wave dispersion: 

Seismol. Soc. Am. Bull., v. 40, no. 4, p. 271-280, illus.-, Oct. 1950. The 

observed dispersion of Rayleigh waves across the Atlantic and Pacific 

Oceans is accounted for by their propagation through water and unconsolidated sediments overlying a thick layer of ultrabasic rock. 

Illustrative theoretical and observed dispersion curves are given. V. S.

Faessler, Carl.

The Labrador Peninsula in time and space: Canadian Min. Jour., v. 71, no. 6, 

p. 47-50, illus., June 1950. The geological history of the Labrador 

area and particularly of the iron deposits.

Fahey, Joseph John. See also Pecora, W. T.

1. (and Daggett, E. B., and Gordon, Samuel George). Wherryite, a new mineral from the Mammoth mine, Arizona : Am. Mineralogist, v. 35, nos. 1-2, 

p. 93-98, illus., Jan.-Feb. 1950. Describes optical, physical, and chemical 

properties of wherryite, PbC(V 2PbS04 - Pb(Cl, OH) 2 - CuO, found to be 

associated in the Mammoth mine with chrysocolla, diaboleite, and 

paralaurionite. V. S.

2. (and Axelrod, Joseph Meyer). Searlesite from the Green River formation 

of Wyoming: Am. Mineralogist, v. 35, nos. 11-12, p. 1014-1020, illus., 

Nov.-Dec. 1950. Physical, chemical, optical, and X-ray data for searlesite, hydrous sodium borosilicate, are given. The material was obtained 

from the Green River formation, Sweetwater County, Wyoming, and is

the third recorded occurrence of the mineral. The X-ray data are 

furnished by J. M. Axelrod.

Fairbairn, Harold William.

1. Synthetic quartzite: Am. Mineralogist, v. 35, nos. 9-10, p. 735-748, illus., 

Sept.-Oct. 1950; abs., nos. 3-4, p. 280-281, Mar.-Apr. 1950. "Quartz sand

(grain size 125 25O microns) immersed in weak aqueous NasCOa solution is converted to sheared quartzite (grain .size 100-20O microns) 

after a few hours' exposure to temperatures in the range 230°-435° C., 

Confining pressures between 5,000 and 30,000 psi, and compressive loads

between 32,000 and 103,000 psi." The procedure and results of. the

experimental work are described and discussed.

2. Pressure shadows and relative movements in a shear zone: Am. Geophys. 

Union Trans., y. 31, no. 6, p. 914-916, illus., Dec. 1950. The determination of direction-sense of movement by means of pressure shadow

orientation has been investigated by Miigge (1930), but no correlation

 with a field example has been made. Data from study of an oriented 

specimen from the Campbell shear zone at Yellowknife, Northwest Territories, provide such a correlation ana confirm the field data an

every way. 3. A comparative study of chemical and spectrographic methods of determination of the major elements of rocks [abs.]: Koyal Soc. Canada Froc.,

3d ser., v. 44, p. 227, 1950.

Falkenbach, Charles Henry, See Schultz, C. B., 1.

Fancher, George Homer.

The porosity and permeability of clastic- sediments and rocks, in Subsurface

geologic methods, p. 685-713, illus., Colo. School of Mines, 1950. Defines uDQ QlSCUSSeS pOrOSityj pein»v«»»««y, «« o^^^ ^....^o ^ «edimentary rocks, and indicates the methods of measurement.

Farquhar, Francis P.

Francois Emile Matthes, 1874-1948: Am. Alpine Jour., v. 7, no. 2, p. 201-203, 

port., Jan. 1949.
BIBLIOGRAPHY .91

Farr, Thad D.

Phosphorus; properties of the element and some of its compounds: Tenn. 

Valley Authority, Chem. Eng. Rpt. no. 8, 93 p., 1950. Chemical, optical, 

and X-ray diffraction data are given for the calcium phosphates in addition to the data on phosphorus, phosphorus oxides, and acids of 

phosphorus.

Paul, Henry.

Fossil burrows from the Precambrian Ajibik quartzite of Michigan: Jour. 

Paleontology, v. 24, no. 1, p. 102-106, illus., Jan. 1950; abs., Geol. Soc. 

Am. Bull., v. 59, no. 12, pt. 2, p. 1320-1321, Dec. 1948; brief summary, 

Nature (London), v. 164, no. 4157, p. 32, illus., July 2,1949. "Markings 

found on the surfaces of the Ajibik mid-Huronian quartzite north of 

Ishpeming, Michigan, are interpreted as burrows made by a small unknown organism."

Faust, George Tobias.

Thermal analysis studies on carbonates. 1. Aragonite and calcite: Am. Mineralogist, v. 35, nos. 3-4, p. 207-224, illus., Mar-Apr. 1950. "Differential thermal analysis studies were made on 8 samples of aragonite, 

7 of calcite, and 1 natural mixture of aragonite and calcite. The transformation of aragonite to calcite gave a thermal effect that was easily 

observed with the continuous-photographic-recording type of differential thermal analysis apparatus. This transformation serves to identify 

aragonite. The aragonite-calcite transformation and the formation of 

unstable polymorphs of CaCO3 are discussed."

Fay, Robert 0. See Fischer, A. G.

Fears, Fulton Keller.

Bibliography on mineral aggregates: Natl. Research Council, Highway Research Board Bibliography no. 6, 89 p. (t), 1949. The bibliography consists of 467 items, annotated and arranged chronologically. There is 

a subject index, an author index, and a separate section of references 

on distribution of mineral aggregates, arranged by states.

Fellows, Robert Ellsworth, 1915-1949. See also Moffit, F. H., 1.

Notes on the geology of Rock Creek Park, District of Columbia: Am. Geophys. 

Union Trans., v. 31, no. 2, pt. 1, p. 267-277, illus. incl. geol. sketch map, 

Apr. 1950. Pre-Cretaceous schist, granite, and diorite, exposed in Rock 

Creek Park, are described, mapped, and compared with the rock units 

identified in the area by A. Keith and N. Darton in 1901. Age revisions 

and mineralogic and structural relations are suggested. V. S.

Fenner, Clarence Norman, 1870-1949.

The chemical kinetics of the Katmai eruption, Parts 1-2: Am. Jour. Scl., v. 248, 

no. 9, p. 593-627, illus., Sept. 1950; no. 10, p. 697-725, illus., Oct. 1950. 

The study of the field relations, petrography, and chemistry of the 

pumices, ejected in the eruption of Mount Katmai, Alaska, in 1912, 

points to the assimilation of great quantities of basic rock by the new 

siliceous magma. Possibilities of exothermic reactions in the magma 

are explored, and the large quantities of heat that may be developed 

are indicated. V. S.

Fent, Oscar S.

1. Pleistocene drainage history of central Kansas: Kans. Acad. Sci. Trans., v. 

53, p. 81-90, illus., 1950. A tentative drainage history is outlined which 

indicates a northeastward migration of through-flowing streams effected 

by successive captures of the southern trunk stream. Several maps and 

cross sections are included.

2. Geology and ground-water resources of Rice County, Kansas: Kans. Univ., 

State Geol. Survey Bull. 85,142 p., illus. incl. geol. map, July 1950. Describes the Permian-Quaternary strata, including the Pleistocene glacial 

unconsolidated material. The important aquifers of the area are the 

Pleistocene sands and gravels, the Dakota sandstones, and the Kiowa 

shales, the latter two of Cretaceous age. Well records and chemical 

analyses of waters are given.
92 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, I960

Fenton, Carroll Lane. See also Stumm, E. C., 1.

Wonderland of lava: Nature Mag., v. 43, no. 7, p. 349-352, illus., Aug.-Sept. 

1950. Reconstructs briefly the history of the formation of the ColumbiaSnake River lava plateau, occupying more than 200,000 square miles in 

northwestern United States and formed since mid-Miocene time. V. S.

Fenton, Mildred Adams. See Stumm, E. C., 1. 

Ferguson, Hershal Cevera. See Colle, J. O. 

Ferguson, John L.

Charles Newton Gould (1868-1949) : Am. Assoc. Petrol. Geol. Bull., v. 34, no. 4, 

p. 807-811, port., Apr. 1950.

Ferguson, Robert Bury. .See also Conybeare, C. E. B., 1. 

Red gold from the San Antonio gold mine, Bissett, Manitoba: Am. Mineralogist, 

v. 35, nos. 5-6, p. 459-460, May-June 1950. Describes the occurrence 

of native yellow gold with a red coating close to ordinary yellow gold 

in qnartz-carbonate-sulfide ore from the San Antonio mine. X-ray 

and spectrographic examination indicate that the coating is either copper 

or a copper-gold alloy.

Ferm, John C.

Megaspores of the middle (?) Kittanning coal in Beaver County, Pennsylvania 

tabs.]: Am. Jour. Botany, v. 37, no. 8, p. 672-673, Oct. 1950.

Fernquist, Charles 0.

Some Washington gem trails: Mineralogist, v. 18, no. 2, p. 59-64, Feb. 1950. 

Occurrences in the state of Washington are indicated for 40 precious 

and semi-precious stones, and several collecting grounds are described 

briefly. V. S.

Ferris, Bernard J.

Are oil shales natural source beds of petroleum? World Oil, v. 131, no. 3, p. 80, 

82, 84, 86, 88, illus., Aug. 1950; Pt. 2, no. 5, p. 73-76, 78, 81, illus., Oct. 

1950. Thin sections of oil shale from the Green River formation, Garfield County, Colorado, were tested to determine shale solubility as a 

function of particle size, oil yield, specific gravity, duration of exposure, 

and temperature of solvent. The results, together with consideration 

of the effect of geologic time and other factors, indicate that oil shale 

IiaS not been a significant source bed of petroleum.

Fetter, Hans. .See Knl2ek, J. O. 

Fettke, Charles Reinhard.

1. Summarized record of deep wells in Pennsylvania: Pa. Geol. Survey, 4th 

gel' Bllll M31, 148 P.; iUUS,, 1950. Most of the report is devoted to

statistics'of the deep wells drilled, but an introductory SeCtiOfl giV6S 

stratigraphic information on the early Paleozoic formations and the 

oil and gas possibilities.

2. Henderson dome, a unique structure in northwestern Pennsylvania [abs.]: 

Geol. Soc. Am Bull., v. 61, no. 12, pt. 2, p. 1458, Dec. 1950.

3. SubSUrfaCe StratlgrapniC Sections across the northern part of the AppalacMar^Basin tabs.]: Geol. Soc. Am. Bull., V. 61, DO. 12, pt. 2, p. 1566, 

Petzer, Wallace Gordon.

(and Gruner, John Walter, and Rapaport, Irving). Hydrothermal UranilllM deposits near Marysvale, Piute County, Utah [abs.] -. aeoi. soc . Am

B«IJ.. v. ei, no. 12, pt. 2, p. 1459, Dec. 1950.

Mar, Marion Moore,

1. structural features of the Green River Basin: Wyo. Geol. AgSOO. (jrUlQQDOOK, 

SOUtfrWeSt Wyoming, p. 86-S7, illus., 1950. Brief presentation of the

main features of the Green River structural basin in SOUtnwest Wyoming, uCCOmpaniSfl *>y a-tectonic map of the area.

2. Baxter Basin gas Mds, Swefitwater County, Wyoming: w. oeoi, ^c . 

Guidebook, Southwest Wyoming, p. 109-110, illttS., 1950. Brief UOteS 0fl 

the history, stratigraphy, structure, and production of the gas fields 

 in the Baxter Basin near Rock Springs, Wyoming.
BIBLIOGRAPHY 93

Fidlar, Marion Moore Continued

3. Church Buttes gas field, Sweetwater and Uinta Counties, Wyoming: Wyo. 

Geol. Assoc. Guidebook, Southwest Wyoming, p. 111-113, illus., 1950. 

The stratigraphy, structure, production, and history of the Church 

Buttes gas field, in the Green River Basin, are briefly described.

4. Clay Basin gas field, Daggett County, Utah: Wyo. Geol. Assoc. Guidebook, 

Southwest Wyoming, p. 114-116, geol. sketch map, 1950. Stratigraphic, 

structural, and production data are briefly presented, accompanied by a 

geologic and structural map and a columnar section.

Field, D. S. M.

1. Canada's giant- zircons: Gemmologist, v. 19, no. 228, p. 139-141, July 1950. 

Brief notes on the ml zircon crystals occurring in Renfrew County, 

Ontario, Canada.

2. Diamond pipes in Canada: Canadian Min. Jour., v. 71, no. 7, p. 54-57, 

map, July 1950. Reports the diamond finds that have been made in the 

glacial drift of both Canada and the United States.

3. Arctic gems: Gemmologist, v. 19, no. 229, p. 177-179, Aug. 1950. A brief presentation of notes on gem minerals from Baffin Island, Canada, quoted 

from an article by T. L. Walker in the Ottawa Naturalist for AugustSeptember 1915.

Field, George W.

Selected bibliography, in Mississippi Geological Society Guidebook, Eighth 

Field Trip, October 13-15, 1950, p. 25-35, 1950.

Field, Richard Montgomery.

Geological-geophysical-geochemical significance of geosynclines [abs.]: Internat. Geol. Gong., 18th, Great'Britain, Rpt. pt. 8, p. 28, 1950; Volume of 

titles and abstracts, p. 53-54, 1948; Geophysics, v. 14, no. 3, p. 375, 

July 1949.

Field, William Osgood, Jr.

The variations of Alaskan glaciers, 1935-1947: Assoc. Internat. Hydrol. Sci., 

Assembled Ge'ne'rale, Oslo, 1948, t. 2, Comm. de la Neige et des Glaciers, 

Travaux, p. 277-282, [1950?].

Fieldner, Arno Carl.

Coal for coke production : U. S. Bur. Mines, Inf. Circ. 7559, 21 p. (t), illus. incl. 

sketch maps, Mar. 1950. Reviews the nature, distribution, and utilization of coal resources in the United States, with special attention to 

minable reserves of coking coal. V. S.

Finch, Ruy Herbert. See also Macdonald, G. A., 2, 3.

1. (and Macdonald, Gordon Andrew). Thermal water on Kilauea volcano: 

Volcano Letter, no. 507, p. 1, Jan.-Mar. 1950. Steam vents and four 

occurrences of warm water on Kilauea volcano, Hawaii, are described 

and generally attributed to the heating of basal ground water by hot 

rock. Water temperatures range from 83° to 91° F., against an air 

temperature of 77°-79° F. V. S.

2. (and Macdonald, Gordon Andrew). The June 1950 eruption of Mauna Loa: 

Volcano Letter, no. 508, p. 1-11, illus., Apr.-June 1950. Chronological 

narrative of the events of the eruption on the southwest flank of Mauna 

Loa Volcano, Hawaii, on June 1, 1950.

3. Earthquakes accompanying the 1949 eruption of Mauna Loa: Seismol. Soc. 

Am. Bull., v. 40, no. 4, p. 263-266, illus., Oct. 1950. The volcanic eruption 

of Mauna Loa, Hawaii, during January-May, 1949, was both preceded 

and accompanied by a great increase in the number of local earthquakes. 

There were 16 shocks on the day of the beginning of eruption. The 

earthquakes, tremors, fuming, and associated phenomena are described 

briefly. V. S.

4. The December 1950 subsidence at Kilauea: Volcano Letter, no. 510, p. 1-2, 

illus., Oct.-Dec. 1950. Briefly describes the earthquakes, tilting, and 

cracking that accompanied the subsidence of Kilauea Caldera between 

December 8-14,1950. More than 656 earthquakes, originating along the 

rift zone from Kokoolau Crater to the Kamakaia Hills, were recorded.

5. (and Macdonald, Gordon Andrew, and Robinson, Gershon Duvall). June 

1950 flank eruption of Mauna Loa, Hawaii [abs.]: Geol. Soc. Am Bull., 

v. 61, no. 12, pt. 2, p. 1459, Dec. 1950.

980682° 52 7
94 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Fine, Spencer Freeland. See Wiese, J. H., 3. 

Finley, Jean Carson. See McGee, D. A.

Fischer, Alfred George.

(and Fay, Robert 0.). Commensalism of a new Ordovician tetracoral with 

a bryozoan ? [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1459, 

Dec. 1950.

Fischer, Richard Philip.

Uranium-bearing sandstone deposits of the Colorado plateau: Econ. Geology, 

v. 45, no. 1, p. 1-11, illus., Jan.-Feb. 1950. Describes the sedimentary 

"carnotite" deposits, their distribution, size, shape, and formation. The 

ore was probably precipitated from ground-water solutions, their movement being controlled by sedimentary structures. V. S.

Fisher, Daniel Jerome.

1. Cone-axis diffraction patterns [abs.]: Am. Mineralogist, v. 35, nos. 3-4, 

p. 281, Mar.-Apr. 1950.

2. Chalcanthite by the x-ray precession technique [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1460, Dec. 1950.

Fisher, Donald William.

Marcasite fauna in the Ludlowville formation of western New York [abs.]: 

Science, v. 112, no. 2912, p. 449, Oct. 20, 1950.

Fisher, Joel E.

1. Dirt bands: Am. Alpine Jour., v. 7, no. 3, p. 309-317, illus., Sept. 1949. The 

concentric markings found in valley glaciers and usually referred to as 

Forbes bands or dirt bands are discussed. It is concluded that there 

are two types of different origins. Both types owe their appearance to 

slight 'differences in the texture of the ice, but in the Forbes bands the 

process is one of vertical splitting of the ice followed by immediate 

back-filling by fresh snow. In the Alaskan bands the process is one of 

accumulation with extreme variation between summer and winter texture resulting in stratification.

2. Pressure melting points of ice and their control on the profile of glaciated 

valleys : Assoc. Internat. Hydrol. Sci., Assernblee G«5nerale, Oslo, 1948, 

t. 2, Comm. de la Neige et des Glaciers, Travaux, p. 345, [1950?].

3. Some problems of geophysics, approached from viewpoints of modern 

physics. 75 p. (I), illus., Privately-printed, New York, Apr. 1, 1950.

The principle of exponential diminution of universal gravitation with 

time is applied, with related considerations, to the explanation of 

orogeny, ocean basins, continental drift, and glaciation. Wegener's 

theory of drift is supported in general, and a basis for recurring cycles

Of glaciation is provided, v. s.

Fitts, Leroy E., Jr. See Abilene Geol. Soc., 3.

Fitz, Mildred B.

Published works by Esper S. Larsen, Jr.: Am. Mineralogist, v. 35, nos. fr-10, 

p. 954-958, Sept.-Oct. 1950.

FitzGerald, Norman Dunham.

The Beddo field, Runnels County, Texas: Abilene Geol. Soc., Geol, contr,, p,

7-8, illus., 1950. Brief notes on the stratigraphy, structure* and development of the field.

Pitzpatrick, M. M.

A gravitational StUdT Of the Clare River syncllne area, Ontario: Royal Soc.

Canada Trans., 3d ser., v. 44, sec. 4, p. 21-34, illug., June 1950,' flbg.,

Proc., 3d ser., v. 44, p. 23O, 195O. The mapping of gravity anomalies in

the pre-Cambrian Clare River syncline area, near Belleville, Ontario, is

described and the correlation with geologic data is discussed. The conclusion is reached that, in drift-covered areas Where & Sufficient (JeDSttJ 

contrast is known to exist in the bedrock, a gravimeter survey can be 

useful in determining the geologic structure.
BIBLIOGRAPHY 95

Fix, Philip Forsyth.

(and others). Ground water in the Escalante Valley, Beaver, Iron, and 

Washington Counties, Utah (a progress report) : Utah State Eng. Tech. 

Pub. 6, in Utah State Eng. 27th Bienn. Rpt. p. 109-210, illus. incl. geol. 

map, 1950. Describes the general features in relation to water resources 

of the Escalante Valley, in southwestern Utah. Ground water in the 

Beryl-Enterprise district is described by B. E. Lofgren; that of the Milford district by W. B. Nelson.

Flawn, Peter T.

Sedimentary amphibolites in the Van Horn Mountains, Texas [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1460, Dec. 1950.

Fleischer, Michael. See Prondel, J. W. 

Flint, Richard Foster.

1. Pleistocene drainage diversions in South Dakota; Geograflska Annal'er, arg. 

31, hiifte 1-4, p. 56-74, illus., 1949; abs., Geol. Soc. Am. Bull., v. 59, no. 

12, pt. 2, p. 1321-1322, Dec. 1948. "Reconnaissance examination of 

central and eastern South Dakota indicates that a system of streams, 

flowing eastward in wide valleys incised into an early Pleistocene (?) 

planation surface, was blocked by the James glacial lobe, apparently in 

Kansan time. In consequence a new drainage pattern . . . was formed. 

The Missouri River is the principal member of this later generation of 

streams. Conspicuous post-diversion, pre-Wisconsin rejuvenation has 

affected these later streams."

2. Late Pleistocene dates derived from radiocarbon assays: Science, v. 109, no. 

2843, p. 636, June 24, 1949. Brief notes on the application of research 

on natural radiocarbon to the dating of glacial drift. The requirements 

of material suitable for radiocarbon assay are listed.

3. Pleistocene stratigraphy of eastern South Dakota [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1460-1461, Dec. 1950.

4. Report of committee on radioactive carbon 14 [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1517-1518, Dec. 1950.

Flores, Teodoro.

Geologic and structural environment of the iron ore deposits of Mexico: Econ. 

Geology, v. 45, no. 2, p. 105-126, illus. incl. geol. sketch maps, Mar.-Apr. 

1950. "The most important Mexican iron ore deposits occur along the 

Pacific slope of the continent and, sporadically, in the northeastern and 

central parts of the high plateau. . . . Genetically, the deposits are of 

three types: (1) replacements (mainly hematite, martite, and magnetite), (2) contact metasomatic deposits (magnetite and hematite), and 

(3) residual deposits formed by weathering of iron orebodies and of 

basic rocks (ochre useful as pigment)." The paper is accompanied by 

maps and a production table.

Florin, Rudolf.

Upper Carboniferous and Lower Permian conifers: Bot. Rev., v. 16, no. 5, p. 

258-282, May 1950, The genera Letiachia and Ernestiodendron and 

artificial genera are described with special sections on the vegetative 

and reproductive organs. V. S.

Flower, Rousseau Hayner.

1. Stereotoceras and the Brevicoceratidae: Palaeontographica Americana, v. 3, 

no. 24, 36 p., illus., June 1, 1950. The new genus, Stereotoceras, a rare 

smooth-shelled Devonian gyroceracone, is described and illustrated. 

Seven new species are placed in the genus, and another is included 

doubtfully.

2. (and Kmnmel, Bernhard, Jr.). A classification of the Nautiloidea: Jour. 

Paleontology, v. 24, no. 5, p. 604-616, illus., Sept. 1950. A new classification of the Nautiloidea is proposed, which includes the erection of new 

orders, revision of families, and addition of a few new generic groups. 

Nautiloid phylogeny is discussed. V. S.

3. Structural history of the Hudson Valley [abs.].: Earth Sci. Digest, v. 4, no. 

6, p. 18-19, Jan. 1950.

4. Status of classification of Paleozoic nautiloids [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1461, Dec. 1950.
96 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Fluhr, Thomas Warren.

1. The Delaware aqueduct ; some geological data : N. Y. Acad. Sci. Trans., set. 2, 

v. 12, no. 6, p. 182-186, illus., Apr. 1950. Discusses features of the area 

in southeastern New York State traversed by the aqueduct system between the Catskill Mts. and New York City, including deformation south 

of the Highlands, correlation of the gneisses, correlation of the Manhattan-Inwood series, interbedded limestones in the Fordham gneiss, 

and the validity of quartzites.

2. Geology of the Brooklyn-Battery tunnel : Rocks and Minerals, v. 25, nos. 

5-6, p. 250-254, illus., May-June 1950. The geologic characteristics of 

the bedrock in the vicinity of the vehicular tunnel under the East River 

between the lower end of Manhattan Island and Brooklyn, New York, 

are described. The bedrock is Manhattan schist and Brooklyn injection 

gneiss, with a band of inferred Inwood limestone between them. A deep 

gorge in the bedrock marks the band.

Foley, Frank Clingan.

Sedimentation and ground water, in Applied sedimentation, p. 113-123, 1950. 

Sediments of various environments (glacial, fluvial, delta, marine), 

are discussed as sources of ground water. Relation of permeability of 

sediments to ground water is also discussed.

Folinsbee, Robert Edward.

1. (and Moore, J. C.). Preliminary map, Matthews Lake, Northwest Territories (map and descriptive notes) : Canada Geol. Survey Paper 50-2, 

11 p. (t), 1950. The Matthews Lake map area, northeast of Yellowknife, Northwest Territories, comprises volcanic rocks, porphyritic intrusives, and metamorphosed dioritic sediments. The rocks, structures, 

and gold mineralization are described briefly. V. S.

2. Preliminary map, Walmsley Lake, Northwest Territories : Canada Geol. 

Survey Paper 50-4, geol. map, 1950. A geologic map, with notes, of the 

northern part of the Walmsley Lake area, northeast of Great Slave Lake, 

Northwest Territories. The rocks are altered volcanics and sediments 

of the pre-Cambrian Yellowknife group, intruded by granitic rocks 

and basic dikes, also pre-Cambrian. V. S.

Folk, Robert Louis.

1. Petrology of Lower Ordovician cherts in central Pennsylvania [abs.] : 

Earth Sci. Digest, v. 4, no. 6, p. 16, Jan. 1950.

2. (and Weaver, Charles Edward). Surface fQatlireS Of Chert as Studied by 

the electron microscope tabs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1401-1462, Dec. 1950.

Follett, Clarence R. See Sundstrom, B. W. 

Foose, Richard Martin.

Studies on the relationship between the chemistry of ground Water, movement 

of ground water, and rock types : Pa. Acad. Sci. Proc., v. 24, p. 151-154, 

1950. The results of detailed studies of ground water- in part of the

Great Valley of eastern Pennsylvania are presented briefly ana indicate

the possibility of two new mapping techniques. Measurements of hydrogen ion concentration and of total dissolved solids can be used to 

show major formational contacts, major structures, and pronounced 

ground water movement.

Forbes, Hyde.

The e n°o?7e3T, fiiD5rM«5r wdot^^a^ri1. ^s-^^J-J^$^^e 

nius., Feb. 1951 observations are given on the effects exerted by excavation, handling, moistening, and compacting operations, and by the

agents of air and water, upon the physical, mineralogical, and chemical

characteristics of rock materials used in earthworks, in analogy to natural processes of rock weathering, erosion, and deposition. v. s.
BIBLIOGRAPHY 97

Foshag, William Frederick.

The aqueous emanation from Parfcutin volcano: Am. Mineralogist, v. 35, nos. 

9-10, p. 749-755, illus., Sept.-Oct. 1950. "An estimate of the quantity 

of water emitted by the crater vent of Paricutin volcano gives 17,000 

tons per clay, compared to an average daily emission of lava of 100,000 

tons from the lava vents. This quantity of water is believed to be larger 

than the amount of water one could reasonably expect from the magma 

rising in the eruptive conduit, and suggests a considerable dilution of 

magma emission by vapors derived from meteoric waters."

Foster, Margaret Dorothy.

1. The origin of high sodium bicarbonate waters in the Atlantic and Gulf 

Coastal Plains: Geochimica et Cosmochimica Acta, v. 1, no. 1, p. 33-48, 

illus., 1950. The origin of the excessive bicarbonate content of the 

deeper waters in the Atlantic and Gulf Coastal Plains, as compared to 

that of the shallower waters, is investigated. Experimental work shows 

that the presence of carbonaceous material, together with calcium 

carbonate and base-exchange minerals, can account for the high bicarbonate content.

2. Importance of exchangeable magnesium in the study of montmorillonitic 

clays [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1462, Dec. 1950.

Foster, Wilfrid Raymond.

Synthetic sapphirine and its stability relations in the system MgO-Al2Or-SiOa: 

Am. Ceramic Soc. Jour., v. 33, no. 3, p. 73-84, illus., Mar. 1950; abridged 

version In Jour. Geology, v. 58, no. 2, p. 135-151, illus., Mar. 1950. The 

compound, corresponding in properties with the natural mineral, melts 

incongruently at about 1475° C. to yield spinel and liquid, and is compatible immediately below that temperature with cordierite, spinel, and 

mullite, and at still lower temperatures with corundum. The equilibrium diagram of the system is revised, accordingly. V. S.

Foster, William J.

Some suggestions concerning the protection of fragile mineral specimens: 

Rocks and Minerals, v. 25, nos. 3-4, p. 155-158, illus., Mar.-Apr. 1950. 

Fragile mineral specimens can be packed for transportation by wrapping 

in wet, thin paper which, on drying, forms a protective covering and 

which can be easily removed by soaking in water. V. S.

Fournier, George. 

Photographing small Foraininifera: Micropaleontologist, v. 4, no. 1, p. 19-21, 

Jan. 1950. Describes briefly the microscope, illumination, magnification, 

film, and exposure times currently used in micropaleontologic photography at the American Museum of Natural History in New York.

Fowler, George Malcolm.

1. (and Hernon, Robert M., and Stone, Edwin A.). The Taxco mining district, 

Guerrero, Mexico, in Dunham, K. C., ed., Symposium on ... lead and 

zinc: Internat. Geol. Cong., 18th, Great Britain, Rpt. pt. 7, p. 143-153, 

illus. incl. geol. map, 1950; abs., Volume of titles and abstracts, p. 44-45, 

1948. The lead-zinc ores of the Taxco district, Mexico, occur as veins 

and replacement deposits associated with schist basement rock and 

Cretaceous (?) sediments. The ore minerals are sphalerite and galena.

2. Geochemical prospecting in the Mississippi Valley [abs.]: Min. Cong. Jour., 

v. 36, no. 10, p. 77, Oct. 1950.

Fowler, Phillip.

Stratigraphy and structure of the Castleton area, Vermont: Vt. Geol. Survey 

Bull. 2, 83 p., illus. incl. geol. map, 1950. The Castleton area of western 

Vermont is characterized by two stratigraphic sequences, the 10,000-foot 

Champlain Valley sequence and the 3000-4000-foot Taconic sequence, 

both of which comprise pre-Cambrian, Cambrian, and Ordovician strata. 

The stratigraphy is described in detail, the structural features discussed, 

and the geologic history outlined. A bibliography is included. The 

colored geologic map is on a scale of 1 inch to 1 mile.
98 ANNOTATED BIBLIOGRAPHY OP NORTH AMERICAN GEOLOGY, 1950

Fox; Harold D.

Structure and origin of two windows exposed on the Nittany arch at Birmingham, Pennsylvania: Am. Jour. Sci., v. 248, no. 3, p. 153-170, illus., Mar. 

1950. The windows, exposing overturned and graben-faulted Ordovician 

formations, are described. Their origin is explained by local synclinal 

folding and faulting, and subsequent thrusting of relatively small stratigraphic displacement. V. S.

Foye, Wilbur Garland, 1886-1935.

The geology of eastern Connecticut: Conn. Geol. Nat. History Survey Bull. 74, 

95 p., illus. incl. geol. map, 1949. Describes and discusses the physiography, glacial geology, structural geology, mineral localities, and 

rocks of eastern Connecticut, and 'includes a section on the Moodus 

earthquakes of East Haddam.

Frame, Ralph G.

1. Preliminary report on Kirby Hill gas field: Calif. Oil Fields, v. 35, no. 1, p. 

13-21, illus., Jan.-June 1949. Briefly describes the stratigraphy, structure, productive zones, and reserves of the Kirby Hill field, about 40 

miles northeast of San Francisco, California.

2. Helm oil field: Calif. Oil Fields, v. 36, no. 1, p. 5-14, illus., Jan.-June 1950. 

The development, stratigraphy, producing zones, and production statistics are discussed. The Helm field is located in the western part of the 

San Joaquin Valley, 22 miles southwest of Fresno, California. Production has been obtained from Paleocene and Cretaceous strata. The 

prospects for deeper production are poor.

Frankforter, Weldon D.

The Pleistocene geology of the middle portion of the Elkhorn River Valley: 

Nebr. Univ. Studies, new series no. 5, 46 p., illus. incl. geol. map, July 

1950. The area of the Elkhorn River Valley in eastern Nebraska is 

important for correlation of deposits between glacial and periglacial 

regions. Detailed stratigraphic sections of several localities are given; 

the development of Elkhorn terrace is discussed; and the Pleistocene 

geologic history of the area is summarized.

Frarey, Murray James. .

lle-a-la-Crosse map-area, Saskatchewan (report and map): Canada Geol. Survey Paper 50-25, 10 p. ($), geol. map, 1950. An area of pre-Cambrian 

igneous and metamorphic rocks in south-central Saskatchewan.

Frebold, Hans.

Stratigraphie und Brachiopodenfauna des marinen Jungpalaeozoikums von

Holms und Amdrups Land (Nordostgruenland) : Meddelelser om Gr0nland, Bd. 126, no. 3, 97 p., illus., 1950; Copenhague Univ. Mus. Miner. 

G£ol., Commun. Geol. no. 37, 195O. Describes species of Orthotichia,

Der~byia, Streptorhynchus, Produotus, Spirifer, CamaropJioria, and

Atnyris from, late Paleozoic marine beds of Holms and Amdrups Land

in northeast Greenland. Comparisons with strata of East Greenland,

Spitzbergen, Nova Zembla, and European parts of the Soviet Union are

given.

Frederickson, Arman Frederick,

The behavior of some diabase and basalt dilation dikes in the Union Companion 

mine, Cornucopia, Oregon: Econ. Geology, v. 45, no. 3, p. 201-209, illus.,

May 1950. "At depth, the path followed by the dikes in the Cornucopia 

ETQlU mining district is almost independent of the minor structural features of the area. At intermediate depths, the dikes 'roll' into and

follow planar zones of weakness (faults, veins, etc.) for a short distance,

'roll' out of the structurally weak zones, and continue to1 the SUrfaCe"

at tiisfa Jingles. Minax- changes in the strike and tlie air> o£ these dilation dM, Wtien they are in the plane or a vein, result m the displacement or

portions of the vein." 

Frederickson, Edward Arthur, Jr. See Wilson, J. L., 2.
BIBLIOGRAPHY 99

Freedman, Jacob.

1. The geology of the Mt. Pawtuckaway quadrangle, New Hampshire. 34 p., 

illus. incl. geol. map. Concord, New Hampshire. New Hampshire State 

Planning and Development Commission. 1950. An account for the 

layman which describes the geologic history of the Mt. Pawtuckaway 

quadrangle in southeastern New Hampshire, the glacial geology, and 

some of the minerals.

2. Stratigraphy and structure of the Mt. Pawtuckaway quadrangle, southeastern New Hampshire: Geol. Soc. Am. Bull., v. 61, no. 5, p. 449-492, 

illus. incl. geol. map, May 1950. The Mt. Pawtuckaway quadrangle, 

southeastern New Hampshire, is an area of metamorphosed sedimentary 

rocks intruded by plutonic rocks. The igneous rocks belong to the late 

Devonian (?) New Hampshire magma series and the Mississippian (?) 

White Mt. magma series. The metamorphics are assigned to the Eliot, 

Berwick, and Littleton formations. On the basis of several lines of 

evidence, the age of the Eliot and Berwick formations is Middle Silurian 

or older, and the Littleton formation is Lower Devonian. A bibliography 

is given.

Freeman, Louise Barton.

Paleozoic structure and stratigraphy [of the Jackson Purchase region, Kentucky] : Ky. Geol. Survey Bull. ser. 9, no. 4, p. 12-36, illus., 1950. A 

revised reprinting of Bulletin 8, Kentucky Dept. Mines and Minerals, 

1945. The lithology of the Paleozoic formations is described as determined by examination of well cuttings.

Frenzel, Hugh N. See Adams, J. E. 

Frey, David Grover.

Carolina bays in relation to the North Carolina coastal plain: Elisha Mitchell 

Sci. Soc. Jour., v. 66, no. 1, p. 44-52, illus., June 1950. Reports the results of the first sediment studies undertaken to establish the age and 

ontogeny of the basins.

Fridley, Harry Marion.

Glacial drainage diversions in West Virginia [abs.]: W. Va. Acad. Sci. Proc., 

v. 21, p. 96, 1949.

Friedman, 1.1.

Liquid immiscibility in the Na2 0-Si02-H2O system; preliminary data on the 

NaaO-SiOr-AlzOs-HjO system [abs.]: Am. Mineralogist, v. 35, nos. 3-4, 

p. 281, Mar-Apr. 1950.

Fries, Carl, Jr.

1. Ezequiel Ordtffiez [1867-1950] : Min. Eng., v. 187, no. 4, p. 525, Apr. 1950.

2. (and GutiSrrez, Celedonio). Activity of Parlcutin Volcano from August 1, 

1948 to June 30, 1949: Am. Geophys. Union Trans., v. 31, no. 3, p. 406- 

418, illus., June 1950; same for July 1 to December 31, 1949: Am. 

Geophys. Union Trans., v. 31, no. 5, pt. 1, p. 732-740, illus., Oct. 1950. A 

continuation of the periodic reports on the eruptive characteristics of 

Parlcutin Volcano, Mexico. Maps showing the area covered by lava 

flows are given.

Fritz, Madeleine Alberta.

1. Multisolenida, a new order of the Schizocoralla: Jour. Paleontology, v. 24, 

no. 1, p. 115-116, Jan. 1950. Proposes the family Multisolenidae as a 

fourth order of the Schizocoralla on the basis of the corallum, corallites, 

septa, and numerous, well-developed solenia. V. S.

2. Life before the Cambrian: Geol. Assoc. Canada Proc., v. 2, p. 37-42, Apr. 

1950. The very scarce evidence of organic material that existed during 

the pre-Cambrian is described and discussed with reference to the various 

theories that have been advanced to account for its lack. Spectrometric 

data on carbon ratios for various pre-Cambrian rocks are evaluated.
100 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Frizzell, Donald Leslie.

1. Examples of synonymous homonyms: Jour. Paleontology, v. 24, no. 1, p. 117, 

Jan. 1950. Three examples are given at the specific level for Foraminifera from the upper Cretaceous of Texas. V. S.

2. (and Anderson, Irvin J.). Diastems in the Pecan Gap chalk of Travis 

County, Texas: Jour. Sed. Petrology, v. 20, no. 1, p. 55-59, illus., Apr. 

1950. "The importance of the recognition of diastenis in attempts at 

detailed microfaunal zonation of marine strata is discussed. Three diastems are described, occurring in an exposure of Pecan Gap chalk (Upper 

Cretaceous, Taylor group) near Austin, Texas. The presence of encrusting foraminifera on casts of inollusks is indicated as evidence for 

the existence of a diastem."

3. (and Schwartz, Ely). .A new lituolid foraminiferal genus from the Cretaceous, with an emendation of Cribrostomoides Cushman: Mo. Univ., 

School of Mines and Met. Bull., Tech. ser. no. 76, 12 p., illus., Sept. 1950. 

"Oribrostomoides Cushman, 1910, is emended to include planispiral 

arenaceous foraminifera distinguished by a slit aperture at the base of 

the septal face but enclosed by it, with multiple apertures in variant 

individuals . . . Barkerina, new genus . . ., consists of species with 

multiple apertures not enclosed by the septal face, the chambers subdivided by transverse partitions."

Frondel, Clifford. See also Evans, H. T., Jr., 1; Hopkins, J. P.; Lindberg, 

M. L. L., 2.

1. (and Palache, Charles). Three new polymorphs of zinc sulflde: Am. Mineralogist, v. 35, nos. 1-2, p. 29-42, illus., Jan.-Feb. 1950. Three new 

zinc sulfide polymorphs, related structurally to wurtzite, occur as small 

crystals in the Conemaugh formation (Pennsylvanian) black shales 

of Pennsylvania and Ohio. Their physical, chemical, and crystallographic properties, occurrence, and associated minerals are described.

V. S.

2. On paratacamite and some related copper chlorides: Mineralogical Mag., 

v. 29, no. 208, p. 34-45, illus., Mar. 1950; abs., Am. Mineralogist, v. 35, 

nos. 3-4, p. 320, Mar.-Apr. 1950. Chemical, optical, and thermal 

data, together with crystal structure measurements, conclusively reestablish the validity of paratacamite as a species rather than a twinned 

variety of atacamite. Chemical, optical, and X-ray data are given in less 

detail for atelite, tallingite, botallackite, melanothallite, hydromelanothallite, eriochalcite, and antofagastite.

3. Studies of uranium minerals (I) ; parsonsite and randite; Am. Mineralogist, 

v. 35, nos. S-4, p. 245-250, illus., Mar-Apr. 1950. Chemical and X-ray 

data are given for parsonsite from the Rugges pegmatite, near Grafton 

Center, New Hampshire, the first known occurrence outside of the

Belgian Congo. A second new occurrence, on a specimen from Wolsendorf, Bavaria, is also briefly described. The formula is 

Pb2 (UO2 ) (P04 ) 2 .2H2 0. Randite, originally described as a carbonate 

Of CalCilim and UraDiUHl, is actually a mixture of calcite, beta-uranotile,

and some tyuyamunitQ, and is discredited.

4. (and Whitfield, R. E.). Crystallography of rhombohedral sulfur: Acta 

Crystallographica, v. 3, pt. 3, p. 242-243, May 1950. Gives physical, 

optical, and structural data.

5. Notes on arcanite, ammonian aphthitalite, and oxammite: Am. Mineralogist, v. 35, nos. 7-8, p. 596-598, July-Aug. 1950. Optical and X-ray study 

of arcanite from the Santa Ana tin mine, California, indicates that it is 

identical with artificial K= SO4 and is therefore the first authentic natural

example of the mineral. Authentic specimens of tayiorite from the original locality, the Chincha Islands, do not appear to be extant. Other 

Specimens so labeled have proved to he ammonian aphthitalite, which

may be identical with tayiorite. A brief note On the properties Ol 

6 StUQiCS of Uranium minerals (V) ; phospnuranyute: Am. Mineralogist, v.

35, nos. 9-10, p. 756-763, mug., gept.-0ct. 1050. Phosphuranylitfi, formei'lj Known Only from North. Carolina, is redescrihed from twelve new

localities. Physical, optical, chemical, and X-ray data flffl giFffl. TtiQ 

formula has not yet been definitely determined.

7. Synthesis of star sapphires and rubies [abs.] : Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1462-1463, Dec. 1950.
BIBLIOGRAPHY 101

Frondel, Judith Weiss.

(and Fleischer, Michael). A glossary of uranium- and thorium-bearing minerals: U. S. Geol. Survey Circ. 74, 20 p. (t), Apr. 1950. Lists 325 minerals containing or/eported to contain U and/or Th with the percentage 

of each, chemical formula, and literature reference. Valid, synonymous, 

and questionable species are indicated.

Frost, Robert Edson.

Permafrost: Purdue Univ. Eng. Ext. series no. 71, Proc. 36th Ann. Road School, 

p. 101-111, illus., Apr. 10-13, 1950. The general characteristics of permafrost are described briefly and illustrated. The work of the Purdue 

University Engineering Experiment Station in the interpretation of 

permafrost conditions from aerial photographs is outlined.

Frost, Victor LeRoy.

(and Crockett, Harry Lee). Geology of East Pauls Valley pool, Garvin County, 

Oklahoma: Tulsa Geol. Soc. Digest, v. 18, p. 59-64, illus., 1950. The 

stratigraphy, structure, and geologic history are briefly described. Production is from five Pennsylvanian horizons; no showings are known 

from Permian rocks.

Frueh, Alfred J., Jr.

1. Disorder in the mineral bornite, Cu5FeS4: Am. Mineralogist, v. 35, nos. 3-4, 

p. 185-192, illus., Mar-Apr. 1950; abs. nos. 1-2, p. 128-129, Jan.-Feb. 

1950. X-ray, thermal, and electrical evidence, obtained from a single 

crystal from, Bristol, Connecticut, indicates that bornite can exist in at 

least two structurally different forms, low-temperature and high-temperature, and that the relation is one of order-disorder of the metal 

atoms. When thermally induced, complete disorder is reached at 220 C. 

With quenching, the disordered form is retained; with slow cooling, it 

reverts to the low-temperature form.

2. Disorder in sulfides [abs.]: Am. Mineralogist, v. 35, nos. 3^4, p. 282, Mar.- 

Apr. 1950.

3. Crystal structure of claudetite (monoclinic As2O9 ) [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1463, Dec. 1950.

Fry, Albert S.

Sedimentation in reservoirs, in Applied sedimentation, p. 347-363, illus., 1950. 

The problems of reservoir sedimentation are outlined. The methods 

and equipment used in the measurement of sedimentation in reservoirs 

are described in detail.

Frye, John Chapman. See also Swineford, A.

1. Origin of Kansas Great Plains depressions: Kans. Univ., State Geol. Survey 

Bull. 86, pt. 1, 20 .p., illus., Mar. 15, 1950. The larger depressions, developed in Permian or Cretaceous rocks, are the result of underground 

solution followed by collapse or subsidence of surface rocks. The more 

numerous, smaller depressions, in Pliocene and Pleistocene sediments, 

are attributed to differential eolian deposition or erosion, compaction, 

silt infiltration, and animal action. V. S.

2. (and Walters, Kenneth L.) Subsurface reconnaissance of glacial deposits 

in northeastern Kansas: Kans. Univ., State-Geol. Survey Bull. 86, pt. 6, 

p. 141-158, illus., Dec. 15, 1950. Describes the stratigraphy of the till, 

gravel, silt, and alluvium deposits of Pleistocene and Recent ages in 

northeastern Kansas, which constitute the main ground-water sources. 

Records of 64 test holes and cross sections are given. V. S.

3. (and Leonard, Arthur Byron). Stratigraphy of the late Pleistocene loesses 

in Kansas [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1463, Dec. 

1950.

4. Soil-forming intervals evidenced in the Kansas Pleistocene [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1567, Dec. 1950.
102 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Fryklund, Verne C., Jr.

The ore deposits of the Mayflower area, in Detailed geology of certain areas 

in the Mineral Hill and Warm Springs mining districts, Blaine County, 

Idaho: Idaho Bur. Mines and Geology Pamph. 90, p. 63-73, illus. incl. 

geol. maps, Oct. 1950. Describes the stratigraphy, structure and mineralization of the Mayflower area, near Hailey, southern Idaho. The 

ore is mainly galena, sphalerite, and tetrahedrite. Particular attention 

is given to structure and its relation to the continuation of ore in depth.

Fryxell, Fritiof Melvin. See also Matthes, F. E., 2, 3.

1. Student projects and their place in geologic education: 111. State Acad. Sci. 

Trans., v. 43, p. 116-120, 1950. Describes the development and value 

of extracurricular student projects in connection with the teaching of 

geology at Augustana College, Rock Island, Illinois.

2. Memorial to Neil Alden Miner [1898-1947]: Geol. Soc. Am. Proc. 1949, p. 

201-207, port., June 1950.

Fuller, James Osborn.

1. New discoveries concerning the Sharon conglomerate in northeastern Ohio 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1567, Dec. 1950.

2. Northern Middle Devonian sedimentary source for the Sharon conglomerate 

of northeastern Ohio [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1463-1464, Dec. 1950,

Fuller, M. Luther. See Davis, D. W.

Fuller, Richard Eugene.

1. Structural features in the Columbia River basalt: Northwest,Sci., v. 24, no. 

2, p.. 65-73, May 1950. The discussion covers such points as the possibility of differentiation in the flows, aqueous chilling, tensional surface 

features, jointing, and basaltic vents. A bibliography is given.

2. Palisades diabase joint cracks [N. J.] [abs.] : Geol. Soc. Am. Bull., v. 61, no. 

12, pt. 2, p. 1523, Dec. 1950.

Fulton, Robert Burwell, 3d.

Prospecting for zinc using semiquantitative chemical analyses of soils : Econ. 

Geology, V. 45, no. 7, p. 654-670, illus., Nov. 195O; abs., Stanford Univ 

Bull., Abstracts of Dissertations, 1948-1949, v. 24, p. 244-246, Nov. 30, 

1949 Describes a field method of semiquantitative chemical analysis 

of soils for zinc, which can be used as a tool in prospecting for zinc ore.

The method is particularly applicable to areas where OUtCFOpS 816 I6W 

due to a heavy soil cover.

Funnell, John E.

Recent Studies Of WllCOX group Clays in Arkansas : Am. Ceramic Soc. Bull., V.

29, no. 8, p. 286-289, illus., Aug. 1950. The geology, occurrence, and

extent of the clays In the Wilcox formation in SOUth-Central and SOUthW6St6m Arkansas are indicated. The results of microscopic and X-ray

diffraction studies and ceramic t6StS are given briefly, together with 

chemical analyses.

Furcron, Aurelius Sydney..

1, GeOlOgiCal provinces of Georgia and their principal mineral resources ' Ga Geol Survey Bull. 56, p. 10-20,1950. A brief. r«sum<i 0£ tne minerais 

produced in the three physiographic regions crystalline area, Coastal

Plain area, an<3 the Paleozoic area.

2. Kyanite and sillimanite in the southeastern States, in Snyder, F. G., ea., 

symposium on mineral resources of the southeastern United States, p. 99-111 illus., 1950. Describes tue wcw«««e ana attribution Of kyanite 

and simmanite deposits in Virginia, North Carolina, boutfl Carolina, 

and Georgia, and Discusses the origin ^a aee.
BIBLIOGRAPHY 103

Gabelman, John W. See also Wagner, W. R.

1. (Geology of the Fulford and Brush Creek mining districts, Eagle County, 

Colorado: Mining Yearbook, p. 50-52, illus. incl. geol. sk. map, Colo. 

Min. Assoc., Denver, Colo. 1950. Briefly describes the igneous rocks, 

rock alteration, structure, and ore possibilities of the area. A geologic 

sketch map and stratigraphic column are shown. The ore deposits are 

gold-silver-copper, and although there is no accurate recorded production, 

prospecting and small operations have been carried on.

2. Structural control of limestone alteration in the Monarch mining district, 

Colorado [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1552-1553, 

Dec. 1950.

Gabriel, Vittali Gavrilovich.

Geological considerations in evaluation of residual gravities: Mines Mag., 

v. 40, no. 10, p. 104-106, illus., Oct. 1950. "Geological considerations for 

the determination of depths from the surface of points located in the 

regional formations or structures are given and the analogy of depth 

determinations with the evaluation of residual gravities is investigated. 

Finally, inferences for proper evaluation of residual gravities are 

made."

Gad, Gamal M.

Thermochemical changes in alunite and alunitic clays: Am. Ceramic Soc. 

Jour., v. 33, no. 6, p. 208-210, illus., June 1950. An X-ray diffraction 

and thermal analysis study of the reaction of alunite and alunitic clays 

to heating.

Gair, Jacob E.

Some effects of deformation in the central Appalachians: Geol. Soc. Am. Bull., 

v. 61, no. 8, p. 857-876, illus., Aug. 1950. Presents the results of field 

and laboratory study of deformation of quartzites, sandstones, shales 

and limestones in the central Appalachians, particularly in the Potomac 

River Valley. Folds, faults, cleavage, and lineation in Cambrian to 

Devonian rocks, and fabric diagrams have been used to Interpret deforming mechanisms. Conclusions on the causes of changes in deformation and the extent of deformation are given.

Galbraith, George. See Day, W. L. 

Gallagher, David. See P6rez Siliceo, B.

Gallon!, Ernesto E.

The crystal structure of ferroan zincian rhodochrosite: Am. Mineralogist, 

v. 35, nos. 7-8, p. 562-570, illus., July-Aug. 1950. "Roentgenographic and 

thermal analysis of this new variety'proved that it is a Mn-Fe and Zn 

carbonate isornorphous with MnCOs. Specific gravity and refractive 

indices have been determined."

Gallup, W. B.

Geology of the Turner Valley oil and gas field [abs.]: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 11, p. 2250, Nov. 1950.

Galpin, Sidney Steward. See Donnerstag, P. 

Gammell, Hugh Graham. See Hancock, W. P.

Garcia Rojas, Antonio.

1. Exploracifin gravimetrica: Petrtfleos Mexicanos, no. 78, p. 13-38, Feb. 1950. 

The principles of geophysical exploration using gravimetric methods are 

discussed, supplemented by specific data on Mexican areas.

2. Exploracion petrolera en la Republica mexicana de 1938 a 1950; Asoc. Mex. 

Ge61. Petrol. Bol., v. 2, no. 4, p. 245-255, illus., Apr. 1950; Petr61eos Mexicanos, no. 85, p. 75-95, illus., Sept. 30, 1950. A brief account of oil 

and gas exploration in Mexico during 1938-50, followed by a review 

of developments in the promising northeastern, northern, and southern 

petroliferous zones on the Gulf Coast, and in other regions. V. S.
104 ANNOTATED BIBLIOGRAPHY OF NORTH^MERICAN GEOLOGY, 1 95 0

Garcia Tijerina, Napoleon.

Bosquejo geo!6gico del Istmo de Tehuantepec: Asoc. Mex. Ge61. Petrol. Bol., 

v. 2, no. 7, p. 435-444, July 1950; Petr61eos Mexicanos, no. 87, p. 70-79, 

Nov. 1950. Sketches the physiography, stratigraphy, structure, and geologic history of the Tehuantepec Isthmus area in Mexico.

Gardner, Eugene Delos.

Guide to prospecting for lode gold : U. S. Bur. Mines Inf. Circ. 7535, p. 1-12

( I ) , Feb. 1950 ; reprinted in part in Earth Sci. Digest, v. 4, no. 9, p. 8-15,

Apr. 1950. Geologic conditions favoring formation of gold deposits,

characteristic surface indications, associated minerals, testing procedures, and field equipment and provisions are discussed. V. S.

Gardner, Louis Samuel.

Geology of the Button Butte-Forestgrove area, Fergus County, Montana: 

U. S. Geol. Survey Oil and Gas Inv. Prelim. Map 106. 1950. An index 

map, geologic map, and columnar section are shown, together with a 

text on the Carboniferous, Jurassic, and Cretaceous stratigraphy and 

the mineral resources of the area.

Garland, G. D.

1. Gravity anomalies of the Canadian Shield area of northern Ontario: Bulletin Geod<§sique, 1949, no. 12, p. 163-164, June 1949. It is concluded 

that irregularities in the granitic layer resulted from pre-Cambrian 

mountain building and produce the broad, regional gravity anomalies. 

More local anomalies can be correlated directly with known surface 

geology.

2. The analysis of combined gravity and magnetic anomalies [abs.] : Royal 

Soc. Canada Proc., 3d ser., v. 44, p. 230, 1950.

Garman, William L. See Harper, H. J.

Garpner, Erik U.

(and Reed, David E.). Interpretation of magnetic survey data: Mines Mag,, 

v. 40, no. 4, p. 18-19, illus., Apr. 1950. Magnetic anomalies are distinguished into those produced by elevation of the basement, polarization 

contrasts within the basement, and a combination of both factors, and 

the characteristics of each type are discussed to aid interpretation.

V. S.

Garrels, Robert Minard. See also Castafio, J*. R.

(and Dreyer, Robert Marx). Solubility and rate of solution Of calcium car- bonate [abs.] : Geol, Soc, Am. BUIL, v. ei, no. 12, Pt. 2, P. 1464, Dec. 1950.

Garrett, Howard L.

Sand pockets and breccia in the Ijeadvilie limestone Star Basin area Colorado 

! Geol. Soc. Am. Bull., V. 61, no. 12, pt. 2, p. 1553, Dec. 1950.

Garrett, Julius Benjamin, Jr.

New name for a Texas Miocene foraminifer : J.our. Paleontology, v. 24, no. 4, 

p. 506, July 1950. fia-nuiina paimerana is proposed for Planulina palmem Garrett, preoccupied,

Garrison, Lester Edward.

<«ci Tafcaaaki. K. j.). Bottom samples off the CORSt Of SOUthern California : 

CalHi UniV. focnpp* *«*. oo^OB«^y submarine Geology Rpt. 12, 6 p. (t), iiius., Aug. 1950. Data on tne IOCM ana ^s ? 

400 bottom samples taken in the southern California IGglOfl Up W 

are plotted on 4 charts.

Gassmann,

A survey of geophysics: Sci. Monthly, V. TO, DO, 0, p,

general article dealing with the aims and scope

interior of the earth, gravity, terrestrial magnetism, and seismology.
BIBLIOGRAPHY 105

Gates, Frank C.

The disappearing Sleeping Bear dune: Ecology, v. 31, no. 3, p. 386-392, illus., 

July 1950. Sleeping Bear dune, about 25 miles west of Traverse City, 

Michigan, is perched on a glacial moraine overlooking Lake Michigan to 

the west. Formerly covered by vegetation, the dune is now being 

eroded away by the wind as a result of activity within the past 20 years 

which has destroyed the protective vegetative covering. Variations in 

the measurements from 1928 to the present time are given.

Gates, Robert M. See Emmons, R. C. 

Gault, Hugh Richard.

1. Metallic mineral reserves of Pennsylvania, in Symposium on mineral resources of Pennsylvania: Pa. Acad. Sci. Proc., v. 24, p. 208-214, illus., 

1950. The metallic minerals of Pennsylvania are discussed from the 

point of view of their geological occurrence, and tabulations are given 

according to origin and age. The future of several ores is outlined 

briefly.

2. Some chemical and mineral characteristics of carbonate rocks determined 

from chemical analyses [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 

, 2, p. 1464-1465, Dec. 1950.

Gazin, Charles Lewis.

1. (and Collins, Robert E. Lee). Remains of land mammals from the Miocene 

of the Chesapeake Bay region: Smithsonian Inst. Misc. Coll., v. 116, 

no. 2, 21 p., illus., Oct. 12, 1950. Describes molar remains of several 

species of mammals (dog, mastodon, tapir, rhinoceros, horse, and peccary), from the Calvert formation. Oomphotherium calvertensis, n. sp., 

is described.

2. Annotated list of fossil Mammalia associated with human remains at Melbourne, Fla.: Washington Acad. Sci. Jour., v. 40, no. 12, p. 397-404, 

Dec. 15, 1950. Paleontological studies of the Pleistocene mammalian 

fauna at Melbourne, Florida, are reviewed briefly. Fifty forms are 

recognized, of which 28 are extinct. The total is considered to be 

nearly complete and 50 percent larger than the living fauna. V. S.

Gee, David E. See Abilene Geol. Soc., 3. 

Gentry, Howard Scott.

Taxonomy and evolution of Vaseyanthus: Madrono, .v. 10, no. 5, p. 142-155, 

illus., Jan. 1950. Vaseyanthus is a genus of small vine endemic to the 

Gulf of California region of northwestern Mexico. The development of 

the plant during Tertiary time, and its environment, are discussed.

Geoffrpy, Paul R.

(and Koulomzine, Theodore). Need for new policies and new tools in mining 

geophysics:' Canadian Min. Met. Bull. no. 458, p. 313-315, June 1950; 

Canadian Inst. Mining and Metallurgy Trans., v. 53, p. 205-207,1950. A 

review of the place of geophysics in prospecting, its present status in the 

mineral and oil industries, and ways that geophysics can be utilized to 

aid the discovery of ore deposits.

Geological Association of Canada.

Tectonic map of Canada. Scale 1: 3,801,600 or 1 inch to 60 miles. 1950. PreCambrian, Paleozoic, Mesozoic, and Cenozoic sedimentary, volcanic, and 

intrusive rocks are differentiated by colors. The sedimentary and volcanic rocks are further differentiated into undisturbed and disturbed by 

patterns. Structural features are shown by black symbols.

Geological Society of America.

Application of geology to engineering practice; Berkey Volume. 327 p., illus. 

Geol. Soc. Am., New York, 1950. The Berkey Volume is a collection 

of papers dealing with various aspects of the application of geology 

to engineering practice that has been assembled to honor Charles P. 

Berkey and his many contributions to engineering geology. Papers by 

J. L. Savage and R. F. Rhoades; E. B. Burwell, Jr., and G. D. Roberts; 

E. B. Burwell, Jr., and B. C. Moneymaker; J. F. Sanborn; K. Terzaghi; 

G. D. Louderback; 0. E. Meinzer; E. F. Bean; W. C. Krumbein; D. McConnell and others; K. C. Heald; M. H. Gidel; and C. B. Hunt are included. These are cited individually.
106 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

George, D'Arcy Roscoe.

Mineralogy of uranium and thorium bearing minerals; U. S. Atomic Energy 

Comm. Pub. RMO-563,198 p. (J), illus., Jan. 1949. The first part of the 

report deals with the distribution, mode of occurrence, classification, 

and chemistry' of the minerals. The second part consists of descriptions 

of the individual minerals, arranged under three headings hypogene 

uranium minerals, hypogene thorium minerals, and supergene uranium 

minerals. The material in both sections is based both on literature 

studies and laboratory investigations.

George, William Owsley.

The salt water problem in Texas: World Oil, v. 130, no. 2, p. 5ft-58, illus., Feb. 

1950. Ground water occurrence in relation to wells drilled for oil and 

gas is considered briefly with a view to prevention of contamination of 

fresh water sands by the salt water from such wells. Examples are 

given. V. S.

Gester, George Clark.

Northern Coast Ranges, California, in Symposium on possible future oil provinces of the Pacific Coast region [abs.] : Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 12, p. 2382, Dec. 1950.

Geyer, Richard A.

A bibliography on the Gulf of Mexico: Texas Jour. Sci., v. 2, no. 1, p. 44-93, 

Mar. 31, 1950. Approximately 120 references on geologic, paleontologic, 

and geophysical aspects are given. The other 260 references cover 

oceanography, marine biology, and meteorology, with an appendix 

of 80 references on mass mortality.

Gibbs, Harold L.

(and Evans, LaMar G.). Improvements in methods for preparing thin sections of rocks : U. S. Bur. Mines Rpt. Inv. 4711, 6 p. ($), illus., June 1950. 

"Detailed instructions for making thin sections by methods developed 

at the Salt Lake City laboratory of the Bureau of Mines are given in 

this paper. Several new techniques are described for making thin 

sections of highly altered and friable rocks." 

Gibson, Juan B.

Acumulaci6nes petroliferas en la corteza terrestre: Petr61eos Mexicanos, no. 

82, p. 1-9, illus., June 1950. General comments on structures in sedimentary rocks favorable to the accumulation of petroleum, and references to Mexican occurrences.

Gidel, Murl Harold.

Geology in the discovery, development, and exploitation of mineral deposits, 

in Application of geology to engineering practice, Berkey Volume, p. 273- 

294, iiius., Geoi. Soc. Am., New York, 1950. The fundamental principles

of ore deposition are summarized, and their application to mineral 

exploration and development is discussed.

Gilbert, J. E.

1. Preliminary report on tne Lac La Treve area, Abitibi-East county -. Quebec

Dept. Mines, Geol. Surveys Br., Prelim. Rpt. 230f 7 p. (t), geol. map, 1949. 

A brief report on the pre-Cambrian volcanics and sedimentary strata, 

the StrUCtUre, and eCOnOmiC possibilities of the Lac La Treve area in 

northern Quebec.

2. iStude sur le me'tamorphisme des roches basiques de la region- des lacs

Capisisit et Inconnu, dans le district d'Abitibi-Est; ASSOC. canadienneFraneaise .A.V. gci. Annales, v. 16. p. 93-97, 1950. Petrographic deSCrintlOn Of the metamorphosed basic rocks in tne vicinity of capsisit aiia

Inconnu Lakes, Abitibi-jEast, Quebec, and conclusions on tneir origin,

3. Capsisit Lake and eastward; geology and mineral possibilities: Canadian

Mm. JOUr., V. 71, nO, D, p. 73-80, illus. Incl. geol. sketch map, May 1950. .

The Capsisit Lake area in northern Quebec consists of an east-trending 

belt Of VOlCanlC and sedimentary rocks with associated intrusives,. all 

of pre-Cambrian age. The types of intrusives, the structure, and eCOnomic possibilities of the area are discussed.
BIBLIOGRAPHY 107

Gilbert, Ray E.

Qeochemical prospecting In the Park City district [Utah] [abs.]: Min. Cong. 

Jour., v. 36, no. 10, p. 77, Oct. 1950.

Gildersleeve, Benjamin. '

1. Mineral resources [of the Jackson Purchase region, Kentucky]: Ky. Geol. 

Survey Bull. ser. 9, no. 4, p. 82-111, illus., 1950. A revised reprinting of 

Bulletin 8, Kentucky Dept. Mines and Minerals, 1945. Clay is the chief 

mineral resource of the area. The geologic occurrence and various 

sections in the clay pits are described. Sand, gravel, chert, oil and gas, 

and ground water are briefly mentioned.

2. Building stone of the Crab Orchard district, Tennessee: Min. Eng., v. 187, 

no. 8, p. 883-885, illus., Aug. 1950; A. I. M. E. Trans., v. 187, 1950. Describes the geology, character, and quarrying of a fine-grained, quartzitic, 

multicolored sandstone from Cumberland County, eastern Tennessee.

Gilmour, Andrew.

The state of seismic prospecting: Geophysics, v. 15, no. 3, p. 395-399, July 1950; 

Am. Assoc. Petrol. Geol. Bull., v. 34, no. 7, p. 1384-1388, July 1950; modified version, Oil and Gas Jour., v. 48, no. 51, p. 110, 112, Apr, 27, 1950. 

The progress of seismic prospecting in the United States from 1920 to 

the present time is reviewed briefly. Quality and efficiency of operations are examined and found to depend on the technical skill, experience and ability of the personnel of prospecting parties. V. S.

Girard, Henri. See Bisi, J.

Girault, Jean Paul.

A new method for measuring the refractive indices in micaceous minerals: Am. 

Mineralogist, v. 35, nos. 5-6, p. 421-424, illus., May-June 1950. Describes a method whereby a narrow mica strip, cut perpendicularly to 

(001), is set in a lead pellet in a vertical position. It is then immersed 

in a suitable index liquid and placed on a temperature cell fixed to a 

microscope. The liquid is heated and when the refractive index is 

equal to that of the mica, it is read on the refractometer drum. The 

procedure and apparatus are described, the method evaluated, and its 

application to chlorites discussed.

Goddard, Edwin Newell. See also Lovering, T. S., 1.

Structure of the Judith Mountains, Montana [abs.]: Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1465, Dec. 1950.

Goebel, Lawrence A.

Cairo field, Union County, Arkansas: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 10, 

p. 1954-1980, illus., Oct. 1950. The Cairo oil field, west of El Dorado, 

southern Arkansas, produces from the, Smackover formation of Upper 

Jurassic age. It has exceptional oil-water contacts and abnormally 

low bottom-hole pressure. Structure does not appear to be a controlling 

influence on the reservoir: These features are examined in the light of 

local geology, and the relationship of the Cairo field to adjacent fields is 

discussed. The nomenclature of the Haynesville, Cotton Valley, and 

Buckner formations in the area is considered. V. S.

Goedicke, T. R.

Some geological observations in Caldwell and Watauga Counties, western 

North Carolina [abs.]: N. C. Acad. Sci. Proc. in Elisha Mitchell Sci. Soc. 

Jour., v. 66, no. 2, p. 116, Dec. 1950.

Golder, Charles R. See Benson, W. E. B.

Goldman, Marcus Isaac.

What is "sedimentology"? Jour. Sed. Petrology, v. 20, no. 2, p. 118-119, June 

1950. Maintains that the study of sedimentary rocks is a part of petrology. J. L. Hough (editor) outlines the history of the term "sedimentology." V. S.
108 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Goldring, Winifred.

Devonian crinoids ; new and old : Wagner Free Inst. Sci. Bull., v. 25, no. 4, p. 

29-37, illus., Nov. 1950. Seven species of Devonian crinoids are described and figured, among which are a new variety of Botryocrinus 

reimanni, and the new species Botryocrinus arkonensis and Dolatocrinus 

bethaniensis.

Goldsmith, Julian R.

Gallium and germanium substitutions in synthetic feldspars: Jour. Geology, 

v. 58, no. 5, p. 518-536, illus., Sept. 1950 ; abs., with title, "Significance of 

gallium and germanium, replacements in synthetic feldspars", Geol. Soc. 

Am. Bull., v. 60, no. 12, pt. 2, p. 1891, Dec. 1949 ; Am. Mineralogist, v. 35, 

nos. 3-4, p. 282, Mar.-Apr. 1950. Gallium and germanium atoms substituting for aluminum and silicon atoms are discussed as a means of 

obtaining information on substitutional disorder in alumino-silicates, 

and of interpreting problems of the natural feldspars.

Goldsmith, Richard.

Granitization in the central Okanogan Range, Okanogan County, Washington 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1523, Dec. 1950.

Goldstein, August, Jr. See also Hendricks, T. A., 2.

Mineralogy of some Cretaceous sandstones from the Colorado Front Range: 

Jour. Sed. Petrology, v. 20, no. 2, p. 85-97, illus., June 1950. "Heavy 

mineral suites of Cretaceous sandstones from the Colorado Front Range 

are described and discussed. Progressive variation in these suites between Dakota time and Laramie time is a function of the position of 

the sediment in the disastrophic cycle and results from addition of 

first-cycle sedimentary detritus in the early stages of the Laramide 

Revolution. A mineral stability series for Cretaceous sediments in the

Front Range area is established."

Goldstone, Frank.

(and Nettleton, Lewis Lomax). Sedimentary volumes in the Gulf Coastal 

Plain ; geophysical aspects [abs.] : Geol. Soc. Am. Bun., v. 61, no. 12, pt. 2, 

P. 1465. Dec. 1950.

it, Richard Parker*

1. Wisconsin glacial deposits, in The water resources of dreene Collflty,

OMO Water Res. Bd. Bull. 19, p. 13-19, illus. incl. geol. map, Jan. 195O.

The various types of glacial deposits are described and their water-bearing nroDertieS are diSCUSSed, A map of the surficial geology is included.

2 Geomorphoiogy, vn eamn isiana e2,pediUo«, IQKO, a Dreliminary report; 

Arctic, v. 3, no. 3, p. 139-141, Dec. 1950. Brief data on the activity 01 me

Barnes Ice Cap ana moraine formation, and the glacial history of the

region between the ice cap and the coast. 

3. Wisconsin deglaciation of west-central Ohio [abs.] : Geol. Soc. Am. Bull.,

Golze, Alfred R.

Problems of irrigation canals, in Applied sedimentation, p. 364-379, 1950. 

Methods of reducing the inflow of silt are considered, along with the 

problem of the cost of silt removal.

Gonzales Reyna, Jenaro.

1. LOS recursos mlnerometalurgtcos : Soc. Mex. Geog. Est. Bol , v 68 nos 1-2 

P 19-44, Jllly-OCt. 1949, A general diSCUSSion of mineral resources of 

Mexico according to regions.

2. GeOlOgla, paragenesls y reservas ae los yacimientos de plomo y zinc de

Mexico, in Dunham, K. C., ed., Symposium on . . . lead ana zinc ; interntvt. oeoi. cone., nstt., .Gkre,vt Kritnin Rr>t t>t 7 p 121 142 illus 1950 ; abs., Volume of titles and aDsuacts, P. * , *« 5 -Tisr-jr

as Mexico Inst. Nac. Inv. Rec. Miner. Bol. 26, 32 p., illUS., ISM 1116 

lead-zinc deposits of Mexico are discussed according to geographic distribution, geologic occurrence, mineralization, production, and reserves. 

Several summarized tabulations of data are included.
BIBLIOGRAPHY 109

Gonzales, Reyna Jenaro Continued

3. The coal deposits of Coahuila, Mexico: Econ. Geology, v. 45, no. 3, p. 249- 

251, May 1950. Describes briefly the occurrence and reserves of coal 

in the Cretaceous strata of the Fuente, Sabinas, Esperanza, and Saltillito-Lampacites coal basins. Reserves for the province total 1,690,000,000 

tons. V. S.

Goodspeed, George Edward.

Rheomorphic breccias [abs.]: Am. Mineralogist, v. 35, nos. 3-4, p. 282-283, 

Mar.-Apr. 1950.

Goranson, Roy Waldemar. See Tuve, M. A., 1.

Gordon, I. See Bauer, W. H.

Gordon, Mackenzie, Jr. See Koschmann, A. H., 1.

Gordon, Samuel George, d. 1952. See also Fahey, J. J., 1. 

Crystallographic data on wavellite from Llallagua, Bolivia, and on cacoxenite 

from Hellertown, Pennsylvania [abs.]: Am. Mineralogist, v. 35, nos. 

1-2, p. 132, Jan.-Feb. 1950.

Gorfinkle, Lorraine G. See Ahrens, L. H., 2, 5.

Goudge, M. G.

Sandstone at Hantsport: Nova Scotia Dept. Mines Ann. Rpt. 1949, p. 108-110, 

illus., 1950. The sandstone deposit of Mississippian age, at the town 

of Hantsport, Nova Scotia, contains over 100,000 tons of silica rocks 

suitable for production of glass. Chemical composition is given. V. S.

Gould, Howard Ross.

Some quantitative aspects of Lake Mead turbidity currents [abs.]: Oil and 

Gas Jour., v. 48, no. 51, p. 176, Apr. 27,1950.

Gow, Kenneth L.

Douglas Creek gas field, in Petroleum geology of the Uinta Basin: Guidebook 

to the Geology of Utah, no. 5, p. 139-146, illus., 1950. The stratigraphy 

and structure of the Douglas Creek gas field, northwestern Colorado, are 

described briefly. Notes on nearby wildcat wells are given. A gas 

analysis is included.

Graf, Donald L.

1. Petrology of the basal high-purity bed of th<e Burlington limestone : 111. State 

Acad. Sci. Trans., v. 43, p. 160-164, illus., 1950; 111. State Geol. Survey 

Circ. 170, 1951. The depositional history of a basal, chert-free layer 

of the Burlington limestone in western Illinois is interpreted through 

a study of thin sections.

2. (and Kerr, Paul Francis). Trace-element studies, Santa Rita, New Mexico: 

Geol. Soc. Am. Bull., v. 61, no. 10, p. 1023-1052, illus., Oct. 1950. "Emission spectrography has been used to study distribution of trace elements 

in Paleozoic limestones surrounding Pb-Zn ore bodies near Santa Rita, 

New Mexico, and subsequent transportation of these traces into overlying Tertiary beds. Analyses are given for Pb, Zn, Cu, Ag, and V, important ore metals, and Mn and Al, prominent in pre-ore silication." 

The correlations, zonation, and structural control of the trace-element 

distribution are discussed.

3. (and Lamar, John Everts). Petrology of Fredonia oolite in southern Illinois : Am. Assoc. Petrol. Geol. Bull., v. 34, no. 12, p. 2318-2336, illus., 

Dec. 1950. Describes the geologic history and petrology of the Fredonia 

oolite (Mississippian) of southern Illinois, a member of the Ste. Genevieve limestone and an important oil-bearing bed. Two ages of cementation, two periods of solution, and primary and secondary porosity 

are observed. Twinning and nndulose extinction in coarsely crystalline calcite and penetration and disruption of oolites indicate pressure 

related to compaction, and perhaps also to diastrophism. V. S. 

980682° 52 8
110 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Graham, D. W.

Susan Peak field, Tom Green County, Texas: Abilene Geol. Soc., Geol. Contr., 

p. 80-81, illus., 1950. Brief notes on the structure and producing zones.

Graham, E. R.

The plagioclase feldspars as an index to soil weathering: Soil Science Soc. 

Am. Proc. 1949, v. 14, p. 300-302, 1950. The procedure followed and 

the results obtained in experimental work on feldspar weathering are 

described. It is concluded that the weathering rate of plagioclase feldspar follows the calcium content. Anorthite, with the highest calcium 

content, weathers the most rapidly; albite, with the lowest content, is 

most resistant. The rate for anorthite is 16.3 times as fast as that for 

albite.

Graham, Jack Bennett.

1. Pennsylvania's water resources and water uses, in Symposium on mineral 

resources of Pennsylvania: Pa. Acad. Sci. Proc., v. 24, p. 220-229, 1950. 

General comments on the occurrence, use, chemical quality, and development of ground-water and surface-water supplies in Pennsylvania.

2. Ground-water problems in the Philadelphia area: Econ. Geology, v. 45, 

no. 3, p. 210-221, illus. incl. geol. sketch map, May 1950. The Philadelphia area, in southeastern Pennsylvania, is situated partly on pre-Cambrian crystalline rocks and partly on unconsolidated Sediments Of tbe 

Atlantic Coastal Plain. The sand and gravel aquifers of the Coastal 

Plain are highly productive compared to the bedrock aquifers of the 

Piedmont. The water-bearing properties of the rocks are described.

V. S.

Graham, Joseph John.

1. A chamber cast in Nodosarla affinis d'Orbigny in the Eocene of California: 

Micropaleontologist, v. 4, no. 1, p. 17, illus., Jan. 1950. Small, oolitic 

goethite pellets occurring in the Meganos shale (Eocene) of central 

California are the internal casts of the chambers of Nodosaria affinis.

2. New Foraminifera from the type Meganos formation (Eocene) of California: Jour. Paleontology, v. 24, no. 3, p. 282-286, illus., May 1950. 

"Two new species of Foraminifera are illustrated and described from 

Division E of the type Meganos formation (Eocene) of California: 

Elpliidium ( ?) clarki and OpercuUna campi. This is the earliest stratigraphic Occurrence Of OpercuUna in California, and if E. (?) clorfoi is 

correctly allocated, possibly one of the earliest occurrences of Elphiclium in North America."

3. Foraminifera of the type Meganos formation (Eocene) of central California [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt 2, p. 1538, Dec. 

1950.

Graham, Robert Bruce.

1. Preliminary report on part of the west half of Hebe"court Township, Abitibi- West County: Quebec Dept, Mines, Mineral Deposits Br, preiim. apt

232,15 p. (t), geol. map, 1949. A brief report on the pre-Cambrian roCkg,

structure, and gold and copper ore prospecting in H>§b4court Township, northwestern Quebec.

2. Preliminary report on the southwest part of Lesueur Township, Abitibi-East

County: Quebec Dept. Mines, Mineral Deposits Br., preiim. Rpt. 243, 

15 p. ($), geoi. map, ±950. Describes the pre-Cambrian rocks and 

structure in Lesxieur Township in northern Quebec. The area is charactBriZed by gOld, Silver, lead, and zinc mineralization. Several mine

properties are described.

3. The geology of the southwest part of Lesueur Township, Bachelor Lake:

Canadian Min. Jour., v. 71, no. 8, p. 60-66, uius. inci. geoi. map, Aug. 

1950. The southwest part of Lesueur Township, Bachelor Lake area,

northern Quebec, is underlain by pre-Cambrian volcanics and sediments cut by various intrusives, Ooia, surer, zmc, ana ieaa mu^au^on

occurs in silicified agglomerate and tuff. V. ».
BIBLIOGRAPHY 111

Grant, Willard H.

The petrography of three Georgia itacolumites: Ga. Geol. Survey Bull. 56, p. 

91-96, 1950. Brief descriptions of flexible sandstones occurring in 

Georgia, with notes on their origin.

Gray, A. Lloyd.

The practical application of air survey to geological exploration: Western 

Miner, v. 23, no. 3, p. 52-54, illus., Mar. 1950. Large-scale aerial photographs, taken by suitable methods and examined stereoscopically, can 

aid in identifying geological boundaries, structures, soils, glacier flowlines, and rock types, and in planning ground traverses. V. S.

Gray, Carlyle.

A strucural problem near Evansville, Pa.: Pa. Acad. Sci. Proc., v. 24, p. 170- 

175, illus. incl. geol. sketch map, 1950. The Beekmantown, Jacksonburg, 

and Martinsburg formations, of Ordovician age, are exposed in the 

vicinity of Evansville, near Reading, eastern Pennsylvania. Complex 

thrust faulting and folding characterize the area. The stratigraphy 

and structure of the Jacksonburg formation are discussed.

Gray, Henry Hamilton.

Mineral City [Ohio] "structure" [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 

2, p. 1567, Dec. 1950.

Green, Cecil Howard.

The relationship of research and field operations in seismic exploration: 

 Colo. School of Mines Quart., v. 45, no. 4A, p. 1-9, Oct. 1950. Progress 

in seismic exploration for oil, reviewed through advances in the interpretation of salt domes, reefs, weathering, low-relief structure, varied 

lithology, and other problems, shows the importance of long-range 

research, assured by education in fundamentals of mathematics, physics, 

and geology. V. S.

Green, Jesse Robison.

A curious Montana cavern: Mineralogist, v. 18, nos. 7-8, p. 343-344, illus., 

July-Aug. 1950. Reports the occurrence of a sink hole near Armington, 

Montana. The hole, 156 feet in diameter and 120 feet deep, apparently 

formed by the collapse of sandstone strata over a limestone cavern.

Green, Lewis H. See Cameron, E. N., 1.

Green, Morton.

. Review of the stratigraphy of the John Day formation in Oregon [abs.] : 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1538-1539, Dec. 1950.

Green, Stephen Harry.

Industrial coal available to Pacific Northwest industries: Raw Materials Survey, Resource Rpt. 4, 22 p. (t), maps, Feb. 1949. The coal fields of 

Washington, Oregon, Utah, Wyoming, and Montana are described 

briefly. Available resources are sufficient for the foreseeable needs of 

the Lower Columbia River industrial area. V. S.

Green, Thomas Henning. See Swesnik, R. M., 2.

Greene, Frank Cook. See also Cline, L. M., 1.

(and Searight, Walter Vernon). Revision of the classification of the postCherokee Pennsylvanian beds of Missouri: Mo. Geol. Survey and Water 

Res. Rpt. Inv. 11, 22 p., illus., 1949. The nomenclature and classification of the post-Cherokee Pennsylvanian, comprising the Desmoinesian, 

Missourian, and Virginian series, as adopted by the Missouri Geological 

Survey in compliance with an interstate agreement with Kansas, Iowa, 

and Nebraska, is presented, discussed, and illustrated by a detailed 

columnar section.
1 12 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Greene, Kenneth Titsworth. See McConnell, D., 1. 

Greenman, Norman N. See Cbayes, F., 3.

Greer, W. L.

Geraldton-Beardmore area, general geology : Canadian Min. Jour., v. 71, no. 11, 

p. 114-115, geol. sketch map, Nov. 1950. The ore bodies and their structural features are briefly outlined. The Geraldton-Beardmore gold 

mining camp is located in central Ontario near Lake Nipigon.

Gregory, Herbert Ernest, 1869-1952.

Geology of eastern Iron County, Utah : Utah Geol. Miner. Survey Bull. 37, 

153 p., illus. incl. geol. map, Feb. 1950. Discusses the stratigraphy, 

igneous rocks, structure, physiography, and economic geology of the 

area. The strata range from Permian through Tertiary in age, with 

glacial deposits of Quaternary age. The igneous rocks are of volcanic 

origin, and are Tertiary or Quaternary. Coal is the only resource of 

economic value.

Gregory, Joseph Tracy.

1. Tetrapods of the Pennsylvanian nodules from Mazon Creek, Illinois: Am. 

Jour. Sci., v. 248, no. 12, p. 833-873, illus., Dec. 1950. Re-examination 

of the tetrapod fauna from the nodules in the Pennsylvanian shales 

at Mazon Creek, Illinois, indicates recognition of only 6 genera and 

species. The genus Amphibamus is revised ; Sauropleura is described 

for the first time from the locality; and several other specimens are 

reviewed. Notes on the similarity of Paleozoic vertebrate faunas of 

North America and Europe and the means of distribution are included.

2. A large pycnodont from the Niobrara chalk : Postilla, no. 5, 10 p., illus., 

Dec. 29, 1950. Describes a new pycnodont fish, Hadrodus marshi, n. sp., 

discovered among specimens collected from the Cretaceous chalk along 

the Smoky Hill River in Kansas by the Yale Scientific Expedition of 1872.

Gregory, William King.

Parallel and diverging skeletal evolution in vertebrates and arthropods : Evolution, v. 4, no. 2, p. 164-171, June 1950.

Greig, Joseph Wilson. See Tuve, M. A., 1.

Grenier, Paul E.

1. Preliminary report on Beetz Lake area (western half) Saguenay County: 

Quebec Dept. Mines, Geol. Surveys Br., Preli>n. Rpt. 240, 5 p. (t), 

geol. map, 1950. Brief notes on the pre-Cambrian rocks, structure, and 

eCOnOffliC POSSiMlitieS Of the Beetz Lake area in eastern Quebec. Chal-^ 

COpyrite, magnetite, and hematite have been ^ound.

2. Problemes g^ologiques au lac Albanel: Assoc. Canadienne-Fran^aise Av. 

Sci. Annaies, v. 16, p. 97-100, 1950. Discusses the relationships of the

pie-Cambrian gneiss and sedimentary rocks of the Mistassini series in

the region of Lake Albanel, northern QliebfiC.

Cries, John Paul.

esources : Biaek Hills Engineer, v. 29, no. 2, p. 38, Nov. 1949. General

On grouucl wat -

tory of the water resources of the State,

Griffin, Charles D.

A pollen nroflle from Reed bog, Randolph County, Indiana : Butler IMV. Bot.

etwees, v. o, ic-apex- no. aa, *>. xsi-iso, May 1O5O. ^ r>aleobotamoal study

of a peat bog in eastern Indiana,

Griffin, K.

c^nd Thomson. James Edgar). Geology of the Teck-Hughes mine: Ontario DODL M1DCO ILflUi *^FTi l i°""3r "" c'^' f" r" p~ ^-^o- HI"S .- I05°-r Describes the development, general geology, strucmtt, W fflllM'RlMtiUll

at the Teck-Hughes gold mine in the Kirkland Lake area, northern 

Ontario.
BIBLIOGRAPHY 113

Griffiths, John Cedric.

Directional permeability and dimensional orientation in Bradford sand: Producers Monthly, v. 14, no. 8, p. 26-32, illus., June 1950; reprinted in 

Pa. State Coll. Mineral Indus. Expt. Sta. Bull. 54, p. 138-163, illus., 

1950. "Measurement of long axis orientation of quartz grains in 14 thin 

sections from 3 Bradford sand cores has shown that a grain orientation 

exists and is sensibly parallel to the direction of maximum permeability 

in these cores. The most marked grain orientation lies at a 30° angle 

to the bedding and is best shown in sections perpendicular to the bedding 

and in the plane of maximum permeability."

Griggs, David Tressell. See Turner, F. J., 3.

Grim, Ralph Early.

1. Some fundamental factors influencing the properties of soil materials: 

Second Internat. Conf. Soil Mechanics and Found. Eng., v. 3, p. 8-12, 

illus., 1948; 111. State Geol. Survey, Rpt. Inv. 146, p. 5-11, illus., 1950. 

The factors of composition and textural characteristics are discussed 

insofar as they affect and control the properties of soils. "A theory 

of the structure of soil materials in the.plastic state is presented that 

is based on the oriented configuration of the water molecules initially 

adsorbed by the clay mineral components." It is shown that small 

amounts of montmorillonite may markedly increase plastic properties.

V. S.

2. Mineralogical composition in relation to the properties of certain soils: 

GSotechnique, v. 1, no. 3, p. 139-147, illus., June 1949; 111. State Geol. 

Survey, Rpt. Inv. 146, p. 13-21, illus., 1950. Analyses of 9 selected, 

widely different soils are described to show relations between composition and soil properties. The latter are found influenced particularly 

by montmorillonite and halloysite content, high soluble-salt content, 

high base-exchange capacity, sodium as an exchangeable base, and concentration of components in fine silt particle size. V. S.

3. Application of studies of the composition of clays in the field of ceramics, in 

Applied sedimentation, p. 464-474, 1950. The composition of clays as 

a determining factor of their properties, particularly those which make 

them adaptable to ceramic use, is discussed. The ceramic properties 

considered are plasticity, suspension characteristics, bonding strength, 

drying shrinkage, and firing characteristics.

4. Clay mineralogy in the discovery and recovery of petroleum: Tulsa Geol. 

Soc. Digest, v. 18, p. 31-32, 1950. Brief summary of a talk given to 

the Tulsa Geological Society, March 6, 1950.

Griswold, Daniel H.

Applications of geology in soil conservation, in Applied geology, a symposium: 

Colo. School of Mines Quart., v. 45, no. IB, p. 107-121, illus. incl. geol. 

sk. maps, Jan. 1950. Discusses the application of geology to problems 

in flood control, watershed improvement, and land use. Specific information for the Rio Grande watershed in New Mexico and Texas, 

with regard to flood control, and for a proposed reservoir site in Beaver 

County, Utah, is given. Discussion by S. W. Lohinan and W. A. Stewart 

is appended.

Grogan, Robert Mann. 

(and Shrode, Raymond S.). Formation temperatures of southern Illinois 

bedded fluorite as determined from fluid inclusions [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1466, Dec. 1950.

Gross, William H.

A study of the spatial relation of gold ore to intrusive bodies in northwestern 

Ontario: Geol. Assoc. Canada Proc., v. 3, p. 123-139, illus., Dec. 1950. 

"This paper deals with the possibility of predicting the approximate 

location of ore by determining the direction of movement of the late 

crystallizing products in a magma by comparing partial analyses of 

rock specimens on the present surface of the intrusive." Preliminary 

work in four areas: two in the Red Lake district, Ontario; at Rice Lake, 

Manitoba; and at Eagle Lake, Ontario, is reported. The first three 

areas are known gold deposits; the fourth is a barren stock.
114 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Grossman, Irving 6.

Geomorphology of the interior saline basins of western North Dakota (summary) [abs.]: N. Dak. Acad. Sci. Proc., v. 3, 1949, p. 14-15, Jan. 1950.

Gruner, John Walter. See also Fetzer, W. G.

An attempt to arrange silicates in the order of reaction energies at relatively 

low temperatures: Am. Mineralogist, v. 35, nos. 3^4, p. 137-148, Mar.- 

Apr. 1950. Consideration of ionic forces and covalent SiO2 forces leads 

to a tabulation of 85 silicates in a decreasing order of their electronegativity and bridging values, the product of which gives for each 

silicate its serial energy-index. The bridging factor is calculated from 

coordinate numbers. Various possibilities of geologic application 

through groupng into smaller units, such as the granitic pegmatite silicates, contact metamorphic silicates, etc., are discussed. The paper was 

presented as the presidential address, November 11, 1949. V. S.

Gruver, Robert M.

Differential thermal-analysis studies of ceramic materials; 2, Transition of 

aragonite to calcite: Am. Ceramic Soc. Jour., v. 33, no. 5, p. 171-174, 

illus., May 1, 1950. Previously published differential thermal-analysis

curves for aragonite have not shown the transition to calcite near 450 G. 

This inversion is clearly shown in curves presented for six samples of 

aragonite and the transition is confirmed by X-ray diffraction patterns.

Gude, Arthur James, 3d.

Clay minerals of Laramie formation, Golden, Colorado, identified by x-ray 

diffraction: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 8, p. 1699-1717, illus., 

Aug. 1950. The mineralogical and lithological distribution and association of clay minerals in the Upper Cretaceous Laramie formation at 

Golden, Colorado, was studied by the X-ray diffraction powder method. 

Three stratigraphic intervals were distinguished, and the lower formation boundary was corrected. Clay mineral distribution was found to 

transect lithologic facies boundaries. The method and interpretation 

of data are discussed, and the lithologic column is given, with examples 

of X-ray patterns. V. S.

Guennel, G. K.

History of forests in the glacial Lake Chicago area: Butler Univ. Bot. Studies, 

v. 9, Paper no. 13, p. 140-158, illus., May 1950. Pollen profiles of the 

Pinhook bog and Merrillville bog in northern Indiana are given.

Guerra Peiia, Felipe.

Introduccitfn a la fotogeologia: Asoc. Mex. Ge<51. Petrol. Bol., v. 2, no. 1, p. 

55 70, Jan. 1950. Photogeology is defined, and its development, techniques, and application in petroleum exploration are discussed.

Guiza, Reinaldo, Jr. See also Smith, W. C.; White, D. E., 1.

(and White, Donald Edward). Los yacimientos antimoniales de la regi6n de 

El Antimonio, Estado de Sonora: Mexico, Inst. Nac. Inv. Rec. Miner. 

Bol. 23, 48 p., illus. incl. geol. maps, 1949. The stratigraphy of the

Triassic rocks, the structure, and the igneous intrusives in the Antimonio 

district in northwestern Sonora,' Mexico, are described. The major part

of the report is devoted to description of the geologic conditions, cross

sections, and maps of twenty-two antimony mines.

Gunning, Henry Cecil.

The Cordilleran region: Canadian Min. Met. Bull. no. 4S4, p. 88-01, M. 1956. 

Discussion of the Institute Jubilee Volume, Structural geology of Canadian ore deposits.

Gutenberg, Beno.

1. Structure of the earth's crust in the continents: Science, v. Ill; no. 2872, p,

29-30, Jan. 13, 1950. Differences between results from earthquakes and

from artificial explosions on wave velocities and crustal structure are

explained by a new hypothesis, according to which explosion waves

reaching: the low velocity layer are refracted downward without revealing it, whereas waves from earthquakes originating in this layer form a 

"sofar channel", asjobserved in the atmosphere and ocean, which radiates 

the energy of the P phase. V. S.
BIBLIOGRAPHY 115

Gutenberg, Beno Continued

2. Earthquakes in North America: Science, v. Ill, no. 2883, p. 319-324, illus., 

Mar. 31,1950. Reviews progress in seismology during the past 10 years, 

improvement in earthquake-magnitude determination, resulting knowledge on the relative seismicity of various regions of the earth, and different approaches in utilizing earthquake study for geological investigations. Particular attention is given to seismicity zones in the United 

States. V. S.

3. Wave velocity in the earth's crustal layers [abs.]: Geophysics, v. 15, no. 1, 

p. 156, Jan. 1950.

4. Revised travel time curves for southern California [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1546, Dec. 1950.

Gutierrez, Celedonio. See Fries, C., Jr., 2. " *-,

Gutierrez Gil, Roberto.

Yacimientos petrolfferos en la regi6n de Macuspana, Tabasco: Asoc. Mex. 

Ge61. Petrol. Bol., v. 2, no. 8, p. 499-510, illus. incl. geol. sk. map, Aug. 

1950. Briefly outlines the physiography, stratigraphy, and structure of 

the petroleum-bearing region of Macuspana, southern Tabasco, Mexico.

Guzman, Eduardo Jose.

1. Geologla del Noreste de Guerrero: Asoc. Mex. Ge61. Petrol. Bol., v. 2, no. 2, 

p. 95-156, illus. incl. geol. map, Feb. 1950. A stratigraphic and structural study of the northeastern part of the State of Guerrero in southwestern Mexico. The strata consist of metamorphosed Paleozoic (?) 

rocks, and Triassic (?) through Quaternary sediments. Notes on the 

fossils, geologic history, igneous rocks, and petroleum possibilities are 

given. A geologic map, cross sections, and a correlation chart are included.

2. (and Mina Uhink, Federico). Resultados de las perforaciones de petr&leos 

mexicanos en 1949: Asoc. Mex. Ge61. Petrol. Bol., v. 2, no. 3, p. 171-203, 

illus., Mar. 1950; reprinted in Petr61eos Mexicanos, no. 81, p. 41-71, illus., 

May 1950. Describes and gives statistics on petroleum development in 

Mexico during 1949. The greater part took place in eastern Mexico in 

three areas, northeastern, Tampico Basin, and Tehuantepec Isthmus.

Gwinn, G. Richards.

Dunite ring-dike at Webster, North Carolina [abs.]: Geol. Soc. Am. Bull., v. 

61, no. 12, pt. 2, p. 1567-1568, Dec. 1950.

Gwynne, Charles Sumner.

Terraced highway side slopes in loess, southwestern Iowa: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 1, p. 1347-1354, illus., Dec. 1950. A terraced design 

for a four-mile stretch of highway cut through loess, with some cuts as 

much as 80 feet deep, is described. The effect of runoff, slope wash, and 

erosion is discussed.

Haas, Otto.

1. Ammonites; Tetrabranchiata or Dibranchiata?: Jour. Paleontology, v. 24, 

no. 1, p. 109-110, Jan. 1950. The accepted classification of the Ammonoidea as Dibranchiata is defended against A. Jeannet's alternative assignment, with criticism of his evidence. V. S.

2. Genus designation for species in evolutionary transition: Jour Paleontology, v. 24, no. 5, p. 625, Sept. 1950. Suggests that generic designation 

of species in evolutionary transition be made by using a hyphen between 

the generic names instead of using brackets, as formerly proposed by 

M. K. Elias. V. S.

Hack, John Tilton.

(and Nikiforoff, Constantin C.). The Brandywine area, in The coastal plain 

geology of southern Maryland: Johns Hopkins Univ. Studies in Geology, 

no. 16, pt. 3, p. III-l to 111-14, illus. incl. geol. map, 1950. The Tertiary sediments of the Brandywine area, between the District of 

Columbia and Upper Marlboro, Maryland, are described in a guidebook 

prepared for the Geological Society of America field trip in November 

1950. The origin of the Brandywine formation is discussed.
1 16 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Hadley, Herbert David.

The Charles problem : Billings G/eol. Soc., First Annual Field Conference, Sept. 

15-17, 1950, p. 44-46, illus., 1950. Discusses the stratigraphic position 

and extent of the Charles formation, known only from underground 

exploration. The formation represents a transition between the nonclastic Madison limestone and the clastic Kibbey formation, both of 

Mississippian age.

Hadley, Jarvis Bardwell.

Geology of the Bradford-Thetford area, Orange County, Vermont: Vt.'Geol. 

Survey, Bull. 1, 36 p., illus. incl. geol. map, 1950. The Bradford-Thetford 

area, in eastern Vermont on the Connecticut River, is characterized by 

highly folded and metamorphosed sedimentary and volcanic rocks and

-"minor intrusives, aft of Ordovician or Devonian ( ?) age. The stratigraphy, structure, metamorphism, and glacial features are described.

V. S. 

Haeberle, Frederick Roland.

1. A survey of uranium resources of the world : Texas Jour. Sci., v. 2, no. 2, 

p. 148-155, June 30, 1950. The principal uranium minerals and the 

geologic occurrence at both the better and lesser known world deposits 

are discussed.

2. A review of some of the aspects of land bridges in the Tertiary : Texas 

Jour. Sci., v. 2, no. 2, p. 263-269, June 30, 1950. The various types of 

land bridges and the process of migration are discussed.

Hagen, H. B. See Boucher, F. G.

Hager, Dorsey.

1. The search for oil and gas in the Rocky Mountain region: Oil and Gas 

Jour., v. 49, no. 2, p. 116-118, 156, 158, illus., May 18, 1950. Considers the 

rule-of -thumb method that the number of undiscovered oil fields in 

sedimentary areas will be in the proportion that the volume of sediments 

in the new areas bear to the volume of sediments in the developed 

areas, and applies it to Montana, Wyoming, Colorado, and adjacent 

states.

2. (and Bell, Mendell McClellan). Summary of the gas and oil possibilities

of Utah: Mines Mag., v. 40, no. 10, p. 60-63, map, Oct. 1950. it is 

Concluded that the Uinta Basin, northeastern Utah, is an area of rich 

oil potential, the Colorado Plateau area has important possibilities, and 

the Basin and Range province is the least likely area for oil and gas.

Haider, M. L.

on developments in western Canada: Canadian Mm. Met BUU. no. 453, P. 

321-825, iiius., June 1950 ; Canadian Inst. Mining and Metallurgy Trans.,

 v. 53, p. 213-217, 1950. Oil developments from 1914 to tue pl.e«mi, with

particular emphasis on the progress in the EdmOnton ai'Ga SMOG 1947,

are reviewed. . '

Haigh, Berte Rolph. See also Bartley, J. H., 1. 

Geology of Delaware Basin [Texas] [abs.] : Oil and Gas Jour., v. 49, no. 32,

p. 102, Dec. 14, 1950.

Hail, William J., Jr. s vme, j. r>.

Haines, Richard Bower. See McClellan, H. W. 

Hake, Benjamin Franklin. Memorial to no»v^ ~ _ ^ > ^^^ : Qeol. goc. Am. Proc ^g 

P. 2.11-212, port., June IDix).

Halbouty, Michel Thomas.

ntti- - 7r->-- Types of hydrocarbon accumulation and 50DU1 WUOISJT »~ ~ ^j^rf?""**. T6xas tabs.] : on

and Gas Jour., v. 48, no. 51, p. 110, Apl'. E, 1!M
BIBLIOGRAPHY 117

Hale, Danforth Rawson.

1. Hydrothermal synthesis of quartz crystals: Ceramic Age, v. 56, no. 5, 

p. 22-24, illus., Nov. 1950. One of the papers presented at the crystal 

chemistry symposium held at Rutgers University, June 2,1950. Certain 

points of phase rule relationships of binary systems are discussed 

briefly insofar as they apply to more complex systems. The behavior 

of sodium carbonate with silica at high temperatures is also discussed.

2. Growing rock crystal [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1568,

Dec. 1950. 

Hale, Lyle A.

Stratigraphy of the Upper Cretaceous Montana group in the Rock Springs uplift, Sweetwater County, Wyoming: Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, p. 49-58, illus. incl. geol. map, 1950. The lithology, 

thickness, distribution, and con-elation of the Baxter shale, Blair formation, Rock Springs formation, Ericson formation, Almond formation, 

and Lewis shale are described. The origin and conditions of deposition 

of the sandstones of the Montana group are discussed.

Haley, Boyd R. See Rothrock, H. E., 1. 

Ham, William Eugene.

1. Geology of the Arbuckle limestone in the Arbuckle anticline: Tulsa Geol. Soc. 

Digest, v. 18, p. 49-53, illus., 1950; abs. with title, Stratigraphy and 

structure of the Arbuckle limestone in the Arbuckle anticline, Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 3, p. 621, Mar. 1950. The stratigraphy and 

structure of the Arbuckle limestone, comprising four Upper Cambrian 

and four Lower Ordovician formations in south-central Oklahoma, are 

described, and brief notes on lithology are included.

2. Industrial minerals of the Arbuckle Mountains, Oklahoma: Hopper, v. 10, no. 

11, p. 101-106 ($)> Nov. 1950. Brief notes on the occurrence and 

availability of sand and gravel, building stone, crushed stone, silica 

sand, and dolomite' in the Arbuckle Mts. region of south central Oklahoma.

Hamburger, Gabrielle Eva. See Donnay, J. D. H. 

Hamilton, Daniel Kirk.

Areas and principles of ground-water occurrence in the inner Bluegrass region, 

Kentucky: Ky. Geol.. Survey Bull. 5, 68 p., illus. incl.«geol. maps, 1950. 

The inner Bluegrass region comprises Fayette, Scott, Bourbon and 

Jessamine counties in north-central Kentucky. The stratigraphy, structure, and solutional features of the Lower to Upper Ordovician beds in 

the area are described. Ground water occurrence is discussed and well 

records are given. Geologic, structural, and ground-water maps of each 

county are included.

Hamilton, Gordon R. See Ewing, W. M., 2.

Hamilton, Howard V. See also Seaman, D. M.

Notes on the occurrence of celestite in Pa.: Rocks and Minerals, v. 25, nos. 

7-8, p. 348-350, sketch map, July-Aug. 1950. Fibrous and crystalline 

celestite occurs in Silurian Wills Creek limestone near Bellwood, Blair 

County, Pennsylvania. V. S.

Hamilton, Peggy-Kay. See Da vis, D. W.; Kerr, P. F., 3, 4. 

Hammer, Sigmund Immanuel.

1. Density determinations by underground gravity measurements: Geophysics, 

v. 15, no. 4, p. 637-S52, illus., Oct. 1950; abs., Oil and Gas Jour., v. 48, no. 

51, p. 123, Apr. 27, 1950. Comparisons between measurements of rock 

density, made in a 2,247-feet deep shaft in limestone at Barberton, Ohio, 

by means of a gravimeter survey and laboratory tests of core samples, 

show the gravimeter to be more precise for density determinations of 

finite intervals of underground strata. V. S.

2. Recent developments in gravity .prospecting: Colo. School of Mines Quart, 

v. 45, no. 4A, p. 87-103, illus., Oct. 1950. Advances in gravity instrumentation and field techniques are reviewed, with special attention to 

the interpretation of data and application to ore finding. The usefulness 

of density contrasts in the understanding of structures is emphasized.

V. S.
118 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Hammond, Charles R.

The chemical composition and some physical characteristics of tektites: Pop. 

Astronomy, v. 58, no. 7, p. 345-350, Aug. 1950; Meteor. Soc. Contr., v. 4, 

no. 4, p. 271-275, 1950. "Accurate density measurements are given for 

two australites and for three moldavites, and a chemical analysis, made 

of a moldavite, is compared with that of other tektites and with those 

of ancient and modern glasses. The chemical analysis is then used to 

approximate the coefficient of thermal expansion and other physical 

characteristics of tektitic material."

Hancock, Willis Pritchard.

(and Gammell, Hugh Graham). Redwater oil field, Alberta [abs.]: Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 11, p. 2253, Nov. 1950.

Handin, John Walter. See Krumbein, W. C., 3.

Hanley, John B.

(and Heinrich, Eberhardt William, and Page, Lincoln R'idler). Pegmatite 

investigations in Colorado, Wyoming, and Utah, 1942-1944: U. S. Geol. 

Survey Prof. Paper 227, 125 p., illus. incl. geol. maps, 1950. The report 

based on examination of 114 pegmatites, describes the geology at the 

mines and prospects studied, illustrated by numerous maps and sections, 

and gives estimates of resources of beryllium, tantalum, and lithium 

minerals and of muscovite. V. S.

Hansen, Henry Paul.

Postglacial forests along the Alaska Highway in British Columbia: Am. Phil. 

Soc. Proc., v. 94, no. 5, p. 411-421, illus., Oct. 19, 1950. Pollen analyses 

of seventeen peat sections from northeastern British Columbia are 

described and interpreted.

Happ, Stafford Coleman.

1. Stream-channel control, in Applied sedimentation, p. 319-335, illus., 1950. 

Stream-channel processes are described, and th'e methods employed for 

improving stream channels for flood control and navigation are discussed, using the Mississippi, Ohio, and Missouri River work as

illustrations.

2. Treatment of chalk foundation with hentonite seams, Harlan County Dam, 

Nebraska [abs.l : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1467, Dec. 

1950.

3. Geological classification of alluvial soils [abs.] : Geol. Soc. Am. Bull., v. 

61, no. 12, pt. 2, p. 1568, Dec. 1950.

Harbaugh, John W.

Biogeochemical investigations in the Tri-State district: Econ. Geology, v. 45, no. 

6, p. 548-567, illus., Sept.-Oct 1950. Plant samples, collected at seven 

flWMK in the Tri-State district Of'Kansas, Missouri, and Oklahoma, were 

analyzed for zinc, copper, .lead, nickel, tin, SilVCI, and CObalt. The 

results are discussed. It is concluded that average zinc concentrations 

can be useful in prospecting for concealed mineralization in the district, 

particularly in the outcrop area of the Mississippian cherty limestones.

Harder, Poul.

(and Jensen, Adolf Severin, and Laursen, Dan). The marine Quaternary 

sediments in r>isko Bugt: Mecldelelser om Gr0nland, Bd. 149, no. 1, 85 p., 

IIIUS., 1949; COpenhagUe UnlV. MUS, Miner. G<§ol Commun. G4pl. 

no. 39, 1949. Describes Quaternary beds at several localities in UlSKO 

Bllgt, SOUthweSt Greenland; Orpigs6q, Kangersuneq, Sarfarssuit, Sydost 

bugten, and Lerbugten. The report IS based OU the diary Of Foul Harder, 

written during an expedition in 1906, supplemented by observations bv Laursen in 1946, and includes the tossii sheii determinations Of jensen <>£

the material he collected in 1906. 

Hardin, George Cecil, Jr. See Halbouty, M. T. 

Harding, Richard C.

Paleozoic and Mesozoic stratigraphy of the Boulder area, Colorado '. CompaSS, 

v. 27, no. 3, p. 114-126, illus, incl. geol. map, Mar. 1950. Describes strata 

of Pennsylvanian to Cretaceous age deposited in the Rocky Mountain 

geosyncline in the Boulder area. V. S.
BIBLIOGRAPHY 119

Harding, Richard W.

Correlation of Bradford Third and Richburg sands, Pennsylvania and New 

York: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 9, p. 1866-1873, illus. 

Sept. 1950. Electrolog and surface geologic data show that the Bradford Third sand of the Bradford oil field, Pennsylvania, and the Richburg 

sand of the Allegany oil field, New York, are stratigraphic equivalents. 

Both sands occur in the Chemung formation of Devonian age. The 

evidence is discussed and illustrated by electrolog sections. V. S.

Harding, William Duffield.

1. Geology of the Olden-Bedford area: Ontario Dept. Mines Ann. Rpt, v. 56, 

pt. 6, 1947, 100 p., illus. incl. geol. maps, 1951. The Olden-Bedford 

area is located in Frontenac County, southeastern Ontario, about 40 

miles north of Kingston. The rocks consist of strata of the Grenville 

series, a granite-gneiss complex, and basic intrusives, all of pre-Cambrian age. The various occurrences and mines of both metallic and 

nonrnetallic minerals are described.

2. Geology of the Gullwing Lake-Sunstrum area: Ontario Dept. Mines Ann. 

Rpt., v. 59, pt. 4, 1950, 29 p., illus. incl. geol. map, 1951. The Gullwing 

Lake-Sunstrum area lies in the district of Kenora, western Ontario, 

along the route of the Canadian National Railway. The rocks of the 

area are pre-Cambrian volcanics, sediments, and intrusives, overlain by 

Pleistocene glacial deposits. The rocks are described, and brief mention 

is made of the economic possibilities.

3.. Preliminary report on the geology along the Mississagi road: Ontario Dept. 

Mines Prelim. Rpt. 1950^6, 4 p. (t), geol. map, Mar. 1950. Summarizes 

the results of a reconnaissance, survey of the pre-Cambrian rocks which 

outcrop along the Mississagi road and in adjacent sections in the area 

between Township IF, Algoma, Ontario, and Ohapleau, Sudbury, 

Ontario.

Hare, John.

Silurian of Indiana: Compass, v. 27, no. 4, p. 239-244, illus., May 1950. Silurian 

formations in Indiana are described briefly, and characteristic fossils 

are noted. Columnar sections of the Silurian, Devonian, and Mississippian are included. V. S.

Hares, Charles Joseph.

Pristine monadnocks [Rocky Mts.] [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1553, Dec. 1950.

Barker, P.

(and McLaren, Digby Johns). Soiophyllum, a new rugose coral from the 

Canadian Arctic: Canada Geol. Survey Bull. 15, p. 29-34, 42-43, illus., 

1950. A coral specimen collected from an area of Carboniferous rocks 

near the Yukon-Alaska boundary is described and assigned to a new 

genus and species. The development of the new genus, which appears 

to be closely associated with the Lithostrotionidae, is discussed.

Harlin, M. N. See Wilhelm, C. J. 

Harned, C. H.

Foundations for highway bridges and separation structures on unconsolidated 

sediment, in Applied sedimentation, p. 169-180, 1950. Exploration procedure, personnel, and tools for both footing and pile foundations are 

discussed.

Harper, Arthur R.

Ohio in the making, sd, 80 p., illus. incl. geol. sketch map. Columbus, Ohio. 

Ohio State Univ. College of Education. 1948. A popular account of the 

geology of Ohio for students and teachers. Paleozoic stratigraphy and 

glaciation form the major part of the discussion.

Harper, Horace James.

(and Garman, William L.). Further studies on the recent accumulation of 

alluvium in the flood plains of Deep Fork of the North Canadian River, 

Lincoln County, Oklahoma : Okla. Acad. Sci. Proc., v. 29 (1948), p. 56-59, 

illus., Mar. 1950. The progress of sedimentation between 1943 and 1948, 

with statistical data, is described, and its causes and consequences are 

analyzed. V. S.
120 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Harrington, John W.

Some implications of the geometry of geosynclines [abs.] : Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1467-1468, Dec. 1950.

Harris, H. M. ' See Wilhelm, C. J.

Harris, Sidney L.

Limestone reefs of west central Texas: Abilene Geol. Soc., Geol. Contr., p. 47-59, 

illus., 1950. A discussion of reef building, reef types and patterns, reef 

correlation, relation of structure to reefs, and other reef problems, with 

particular reference to west Texas.

Harrison, A. E.

Glaciers then and now: Sierra Club Bull., v. 35, no. 6, p. 113-116, illus., June 

1950. Notes on the recession of Lyell, Dana, Maclure, Parker Creek, 

Conness, and other glaciers in the Sierras during the past seventy years. 

Comparative photographs are shown.

Harrison, Harold Charles. See Larsen, E. S., Jr., 2.

Harrison, James Merritt. See also Tanton, T. L., 1.

Structural features of the Canadian Shield: World Oil, v. 130, no. 2, p. 202-206, 

illus., Feb. 1950. Study of the pre-Cambrian basement complex from 

aerial photographs offers a method which may assist in the interpretation of structures occurring below some of the known oil fields. V. S.

Harshman, Elbert Nelson.

Engineering geologic investigations; Hungry Horse project, Montana [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1553-1554, Dec. 1950.

Harvey, William P. See Agnich, F. J.

Hass, Wilbert Henry.

Age of lower part of Stanley shale: Am. Assoc. Petrol. Geol. Bull., v. 34, no. ,7, 

p. 1578-1584, July 1950. A study of conodonts from the Stanley shale 

at various localities in Oklahoma and Arkansas suggests that the formation ranges in age from Mississippian Meramec to earliest Pennsylvanian. The conodont evidence and the correlations are discussed. The

age of the barite deposits in the Stanley shale near Hopper ana Magnet 

Cove, Arkansas, is presumed to be Mississippian.

Hatch, Robert Alchin. See also Comeforo, J. E.

(and Eitei, Wilhelm, and Humphrey, R. A.). Synthesis of fluorine micas and 

related layer Structure compounds [abs.] : Geol. Soc. Am. Bull., v. 61, no.

12, pt. 2, p. 1468, Dec. 1950. 

Hatt, Robert Torrens.

A bibliography of Paricutin volcano: Mich. Acad. Sci. Papers, V. 34 (1948), 

p. 227-237,1950. Approximately 160 articles appearing from 1943 to 1947 

are listed by author, Classified as to content, and a few are annotated.

Hauptrrtart, GHarles A.

The Spring Valley, Aspen, and Sulphur Creek fields: Wyo. oeoi. ASSOC. Guidebook, Southwest Wyoming, p. 117-118, illUS,, 1950, Brief notes on the

stratigraphy and oil occurrence at the Spring Valley, Agpen, and Sulphur Creek fields in Uinta County, southwestern Wyoming.

Ha-vard, CUnrlcs Gortt*-y, tl.O2:L 1O5O.

(and EllgWOrth, Ralph' L), GeOlOgy Of tfie Southern yan nom Mjwuon., 

trans-Pecos Texas: Compass, v. 27, no. 4, p. 285-202, illus., May 1950. 

Outlines the stratigraphy and structure of the southern Van Horn Mountains, Culberson County, Texas, characterized mainly by Cretaceous 

Sediments, Tertiary volcanics and intrusives, and pronounced Cretaceous 

overthrusting. Local fossils are indicated. V. S.
BIBLIOGRAPHY 121

Hawkes, Herbert Edwin, Jr.

1. Geochemical prospecting for ores, in Applied sedimentation, p. 537-555,1950. 

Reviews the results of work on geochemical prospecting during the 

period 1935-1950, treating specifically dispersion patterns, botanical 

indications, sampling for chemical analysis, and analytical procedures. 

A bibliography of more than 100 references is included.

2. (and Huff, Lyman Coleman). Geochemistry, a new tool for the prospector 

[abs.]: Min. Gong. Jour., v. 36, no. 10, p. 76-77, Oct. 1950.

Hawley, James' Edwin.

1. Mineralogy of the Kirkland Lake ores: Ontario Dept. Mines Ann. Rpt, 1948, 

v. 57, pt. 5, p. 104-124, illus., 1950. Description of the metallic and 

nonmetallic minerals occurring in the Kirkland Lake, Ontario, gold ores, 

based on the study of thin sections and polished surfaces. The metallics 

are chiefly magnetite-ilmenite, pyrite, chalcopyrite, native gold, tellurides 

and hematite. Nonrnetallics are quartz, dolomite, calcite and feldspar. 

The ores were formed under intermediate temperatures and pressures. 

Their paragenesis is summarized.

2. Memorial of Everend Lester Bruce [1884-1949]: Am. Mineralogist, v. 35, 

nos. 3-4, p. 262-267, port., Mar.-Apr. 1950. . 3. (and Rimsaite, Yadviga, and Wark, W. J.). Minor elements in pyrite of a 

Canadian gold mine [abs.]: Royal Soc. Canada Proc., 3d ser., v. 44, p. 

227-228, 1950.

4. Precious metals in common sulphides and arsenides of the Sudbury district 

[abs.]: Royal Soc. Canada Proc., 3d ser., v. 44, p. 228,1950.

Hay, Richard L. See Thayer, T. P. " . 

Hayes, William E. See Dunn, P. H.

Hazebroek, P.

Note on the analysis of oblique reflection data : Geophysics, v. 15, no. 1, p. 70-79, 

illus., Jan. 1950. The location and orientation of geologic layers are 

determined by a geometrical method from seismic reflections at a cross 

spread, assuming a linear wave-velocity distribution. Solutions cover 

cases when the distance between the shot point and center of spread is 

perpendicular or inclined to the strike. V. S.

Hazzard, John Charles.

1. (and others). Cretaceous rocks in the Kamishak Bay area, Cook Inlet, 

Alaska: Science, v. 112, no. 2904, p. 226-227, Aug. 25, 1950. Reports the 

occurrence of Cretaceous sandstone disconformably overlying Upper 

Jurassic beds in the Kamishak Hills in southwestern Alaska. The strata 

are 2,000 feet or more in thickness, and contain Middle and Upper 

Cretaceous cephalopod genera.

2. Lower Cretaceous rocks at Cape Kaguyak north of Kukak Bay, Alaska: 

Science, v. 112, no. 2904, p. 227, Aug. 25, 1950. Reports the occurrence 

of 400 feet of Lower Cretaceous interbedded siltstone and limestone 

at Cape Kaguyak, about 30-35 miles south of Kamishak Bay, southwestern Alaska.

3. (and others). Oil and gas traps in California [abs.]: Oil and Gas Jour., 

v. 48, no. 51, p. 119-120, Apr. 27, 1950.

4. (and others). Geology of Kamishak Bay area, Cook Inlet, Alaska [abs.] : 

Am. Assoc. Petrol. Geol. Bull., v. 34, no. 12, p. 2377, Dec. 1950.

Heald, Kenneth Conrad.

1. Geologic engineering in the petroleum industry, in Application of geology to 

engineering practice, Berkey Volume, p. 251-271, Geol. 'Soc. Am., New 

York, 1950. The various uses of geology and application of geological 

principles to phases of petroleum exploration and production are 

discussed.

2. Memorial to Robert Watson Clark [1884-1948]: Geol. Soc. Am. Proc. 1949, 

p. 139-140, port., June 1950.

3. Major oil fields of the United States and Canada: Geol. Assoc. Canada Proc., 

v. 3, p. 13-25, illus., Dec. 1950. A general review of features of the 

larger oil fields, indicating such points as age of producing formations, 

distribution of reserves by geologic periods, geologic setting, geographic 

distribution, and discovery frequency.
122 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Heald, Milton T.

1. The geology of the Lovewell Mountain quadrangle, New Hampshire. 29 p., 

illus. incl. geol. map. Concord, New Hampshire. New Hampshire State 

Planning and Development Commission. 1950. An account for the 

layman of the geologic history of the Lovewell Mountain quadrangle in 

southwestern New Hampshire. The geologic time-scale is shown, and 

the rocks, minerals, and glacial features are described.

2. Structure and petrology of the Lovewell Mountain quadrangle, New Hampshire : Geol. Soc. Am. Bull., v. 61, no. 1, p. 43-89, illus. incl. geol. maps, 

Jan. 1950. Bedrock consists of nietasediments of the lower Devonian 

Littleton formation and plutonic rocks of the New Hampshire magma 

series, probably late Devonian. Their composition, mineralogical and 

structural features, and geologic history are described, with attention 

to the metamorphic processes and origin of the plutonic rocks. A bibliography is appended. V. S.

3 Thermal Study of potash-soda feldspars : Am. Mineralogist, v. 35, nos. 1-2, 

p. 77-89, illus., Jan.-Feb. 1950. Temperatures required to homogenize 

lamellar feldspars from various types of rock are not necessarily the 

minimum temperature at which the feldspars crystallized. Accordingly, many of these may have formed by the simultaneous crystallization of soda feldspar and potash feldspar rather than by the exsolution 

of an initially homogeneous feldspar. V. S.

4. Authigenesis in West Virginia sandstones: Jour. Geology, v. 58, no. 6, p. 

624-633, illus., Nov. 1950; abs., W. Va. Acad. Sci. Proc., v. 21, p. 95, 

1949. Quartz, calcite, dolomite, orthoclase, microcline, albite, chlorite, 

kaolinite, and pyrite occur as authigenic minerals in the Oriskany, 

Berea, and Big Injun formations, oil- and gas-producing sandstones in 

West Virginia. Their occurrence and the process of formation are 

described and discussed.

Heaton, Ross L., 1890-1950.

Late Paleozoic and Mesozoic history of Colorado and adjacent areas : Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 8, p. 1659-1698, illus., incl. geol. maps, 

Aug. 1950. Revises paleogeographic data on the Rocky Mountain region. 

Chief changes are made In the Jxirassic maps, in which the NavajoNugget sandstone is extended farther east, the Carmel and Twin Creek 

area is expanded, the Entrada sandstone is modified in the west and 

north, and the Curtis marine beds and Morrison deposits are extended in 

several directions. A correlation chart, 14 revised paleogeographic 

maps, and a cross section are given. V. S.

Heck, William Adam. See Johnston, J. B. .

Heggblom, J. Conrad. See Bemrose, J.

Heim, George W.

(and Aiisman, Paul Trekeii). investigation of DaggQtt Chief manganese

deposit, Manila, Daggett County, Utah : U. S. Bur. Mines Rpt. Inv. 4T31,

9 p. (t), illus., Oct. 1950. The manganese ore occurs in the upper part 

of the Morrison formation (Jurassic) in the northern foothills of the 

Uinta MtS. in northeastern Utah. The occvirrence of the ore is 

described briefly, and a stratigraphic section is given.

Heinrich, Eberhardt William. See also Hanley, J. B.

lllimanite deposits Of the Dillon region, Montana : Mont. Bur. Mines and

Geology Mem. 30, 43 p., illus. incl. geol. maps, 1950. The report describes 

the geology of the southern Ruby Range, and gives detailed descriptions of the sillimanite deposits in that region. Geologic maps of several

after or near the close of the period of regi

2. The Camp Creek corundum deposit near Dillon, Beaverhead County, Montana : Mont. Bur. Mines and Geology Misc. Contr. 11, 20 p. (t), illus. 

incl. geol. map, 1950. The Camp Creek corundum deposit near Dillon, 

Montana, occurs within the Cherry Creek series of nietasediments, a 

subdivision of local pre-Beltian rocks. The corundum-bearing rock is 

associated with a marble lens in biotite schist The geology and 

petrology of the area are indicated, and a summary is given of the 

geology of the other types of corundum deposits in Montana. V. S.
BIBLIOGRAPHY 123

Heinrich, Eberhardt William Continued

3. Accessory sulfides in North Carolina pegmatites: Am. Jour. Sci., v. 248, no. 

2, p. 112-123, illus., Feb. 1950. Describes the mineralogy and paragenesis 

of the sulfides which formed replacements in the pegmatites of the 

Franklin-Sylva and other districts during a late hydrothermai phase 

characteristic of these pegmatites. Typically, the replacement sequence 

is pyrrhotite, pyrite, chalcopyrite, and marcasite, with the first two 

predominating. V. S.

4. Cordierite in pegmatite near Micanite, Colorado: Am. Mineralogist, v. 35, 

nos. 3-4, p. 173-184, illus., Mar-Apr. 1950; addendum, nos. 11-12, p. 

1089, Nov.-Dec. 1950. "The Climax pegmatite of the Micanite district 

in Colorado contains unusually large masses of cordierite, which is 

altered in varying degree to pinite, consisting chiefly of muscovite, chlorite, and biotite, and traces of garnet, zoisite, and tourmaline. Data on 

50 other occurrences of pegmatitic and vein cordierite are summarized, 

and the paragenesis of pegmatitic cordierite is discussed."

5. Syenitic corundum pegmatites near Bozeman, Montana: Econ. Geology, v. 

45, no. 4, p. 378-380, June-July 1950. Additional considerations are 

given in support of the author's theory of a pegmatitic origin of the 

corundum deposits southwest of Bozeman, Montana (v. 44, p. 307-335, 

1949), in response to an alternative hypothesis advanced by S. E. 

Clabaugh.' (See Clabaugn, 2.) V. S.

6. Paragenesis of the rhodolite deposit, Masons Mountain, North Carolina: 

Am. Mineralogist, v. 35, nos. 9-10, p. 764-771, illus., Sept.-Oct. 1950. 

Describes the occurrence of a coarse gneissic rock at Masons Mountain, 

western North Carolina, which consisted originally of rhodolite and 

hypersthene, but has been partly transformed, by metasomatism, into 

anthophyllite-biotite gneiss. Also described is a kyanite-staurolite pegmatite, occurring in the vicinity, and one of the few instances of staurolite as an important pegmatite constituent.

Heinrich, Ross R,

1. The Mississippi Valley'earthquake of June 30,1947: Seismol. Soc. Am. Bull., 

V. 40, no. 1, p. 7-19, illus., Jan. 1950. The earthquake (intensity VI) 

occurred a few miles south of St. Louis, Missouri, and coincided with one 

of the largest floods in history of the Mississippi River. The evidence 

suggests an origin in a basement zone of transitional structure and a 

relation to epicenters of previous seismic activity. Whether there was 

any relation between the flood and the quake is not known. V. S.

2. Earthquakes in the Ste. Genevieve (Mo.) fault zone: Earthquake Notes, v. 

21, no. 3, p. 17-18, Sept. 1950. Seismographic data are given for two 

minor earthquakes in the vicinity of the Ste. Genevieve fault zone in 

eastern Missouri. The earthquakes occurred on Nov. 7, 1946, and June 

8,1949.

3. Two microseismic storms: Earthquake Notes, v. 21, no. 3, p. 20-21, Sept. 1950. 

Describes microseisms which were recorded on seismographs at St. Louis, 

Missouri, as a result of two cyclones.

4. Earthquake recorded by microbarographs: Earthquake Notes, v. 21, no. 3, 

p. 23-24, Sept. 1950. The microbarograph record of the earthquake of 

Aug. 22, 1949, in the Queen Charlotte Islands off the coast of British 

Columbia, is described.

Hem, John David.

1. Quality of water of the Gila River Basin above Coolidge Dam, Arizona: 

U. S. Geol. Survey Water-Supply Paper 1104, 230 p., illus., 1950. The 

chemical character of both surface and ground water of the Gila River 

Basin is discussed by areas, and extensive tabulations are given.

2. Geochemistry of ground water: Econ. Geology, v. 45, no. 1, p. 72-81, Jan.-Feb. 

1950. The field of the science is defined; current and past studies are 

outlined; the study of natural waters, interaction of water and rock 

minerals, and applications to ground-water hydrology are discussed; 

and research projects are suggested. V. S.
124 ANNOTATED BIBLIOGRAPHY 0F NORTH AMERICAN GEOLOGY, 1950

Henderson, Donald M.

1. Atomic models of the silicates as an essential aid in the teaching of elementary mineralogy: 111. State Acad. Sci. Trans., v. 43, p. 127-131, illus., 

1950. Briefly describes the construction of atomic models of minerals 

by using cork spheres of various sizes, and their use in the presentation 

of fundamental principles in elementary mineralogy courses. The comments are directed with particular regard to the silicates.

2. Metamorphic development of the eastern part of the Crawford Notch 

quadrangle, New Hampshire: 111. State Acad. Sci. Trans., v. 43, p. 

165-170, illus. incl. geol. sketch map, 1950. The rocks in the area consist 

of the Littleton gneiss and schist of Devonian age, quartz monzonite of 

Devonian age, and the White Mountain magma series of probable Mississippian age. The various stages in the metamorphism of the Littleton formation are described.

Henderson, George G.

Permutations of fusulinids from the Moran formation of Texas [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1468, Dec. 1950.

Henderson, James Fenwick.

1. (and Brown, Irvin Cecil). Preliminary map, Yellowknife, Northwest Territories (sheet 3) : Canada Geol. Survey Paper 49-26, geol. map, 1949. 

An area of pre-Cambrian rocks. V. S.

2. (and Brown, Irvin Cecil). Preliminary map, Yellowknife, Northwest Territories (sheet 4) : Canada Geol. Survey Paper 50-34, geol. map, 1950, 

An area of pre-Cambrian rocks.

3. (and Brown, Irvin Cecil). Structure of the Yellowknife greenstone belt, 

Northwest Territories: Canadian Min. Met. Bull. no. 463, p. 613-620, 

illus. incl. geol. map, Nov. 1950; Canadian Inst. Mining and Metallurgy 

Trans., v. 53, p. 415-422, 1950. Presents an interpretation of the structure along the west side of Yellowknife Bay. Key lava beds have been 

traced across the West Bay fault and east of the Giant-Campbell shearzone system, suggesting that the shear zones-are related to a large, early 

fault. The probable extension of this fault has been mapped.

Hendricks, Sterling Brown.

(and Hill, William Lee). The nature of bone and phosphate rock: Natl. Acad. 

Sci. Proc., V. 36, no. 12, p. 731-737, illUS., Dec. 1950. Discusses investigations of the composition and structure of the inorganic compounds of 

bone, enamel, and related phosphorites, the nature and relation of the 

mineral francolite, and the surface chemistry of bone.

Hendricks, Thomas Andrews.

1. (and Parks, Bryan C.). Geology of the Fort Smith district, Arkansas:

U. S. Geol. Survey Prof. Paper 221-fE, p. 67-94, illus. incl. geol. map, 

1950. Discusses the stratigraphy, structure, and geomorphology of the

region, and includes a list Of the plant fossils collected from the Arkansas coal field which have been identified. Strata identified in thft 

Fort Smith district are the Atoka, Hartshorne, McAlester, Savanna,

and Boggy formations, all of Pennsylvanian age. Folds, reverse faults,

ancl normal faults are present in the area.

2. (flfld CUIYin, Bernard Arthur, and Goldsteln, August, Jr.). Qeoiogy or

McAlester-Arkansas Valley Basin [abs.]: Am. ASSOC. Petrol. Geol. Bull.,

v. 34, no. 3, p. 621, Mar. 1950.

Hendriks, Herbert E.

01 tlie GrOOfcea OrWlS Structure, Crawfor<3 County, Missouri Cabs.] :

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1469, Dec. 1950. 

Hendrix, Charles E.

ftt<3 CO.-VS boolt : JSn^tn Science Inst. Sr>eo. Pub. no. 1, 67 P.. illUS 1950 A

layman's handbook on types of cav6S, ffleorieS 01 lormatiah, Tarigus

features, methods and techniques of exploration and mapping, and the 

scientific value of cave exploration.
BIBLIOGRAPHY 125

Henry, Darold J.

California gem trails; a field guide for the gem hunter, the mineral collector, 

and the tourist. 1st ed., 63 p., illus. Portland, Oregon, The Mineralogist 

Pub. Co. 1948.

Hernandez Osuna, Alfonso. See Cornejo Toledo, A.

Herness, Sigurd Kermit.

Subsurface and office representation in mining geology, in Subsurface geologic 

methods, p. 989-1037, illus., Colo. School of Mines, 1950. Discusses in 

specific manner the recording of field data and the subsequent preparation of the data in the form of sections, sheets, and maps in connection 

with the geological exploration work of mining companies.

Hernon, Robert M. See Fowler, G. M., 1. 

Herpers, Henry F., Jr.

1. A new conularid from the Esopus formation, Sussex County, New Jersey: 

N. J. Dept. Conserv., Misc. Geol. Paper, 7 p., illus., 1949. Describes a 

new species, Conularia susseatensis, from the Esopus formation of 

Devonian age. The specimen was collected near Montague village, 

Sussex County, New Jersey.

2. An Onondagan faunule in New Jersey: Jour. Paleontology, v. 24, no. 5, 

p. 617-619, illus., Sept. 1950. Re'ports the finding of new brachiopod, 

gastropod, conularid, and coral species from the Esopus formation, on 

the basis of which an Onondaga age is assigned.

Herrick, Charles E. See also Romney, C. F., 1.

1. (and Pendery, Carolyn H.). Earthquakes in northern California and the 

registration of earthquakes at Berkeley Mount Hamilton Palo Alto 

San Francisco Ferndale Fresno, from July 1, 1942 to September 30, 

1942: Calif. Univ. Seismog, Sta. Bull., v. 12, no. 3, p. 95-156 (J), 1950; 

from October 1, 1942 to December 31, 1942, no. 4, p. 157-206 ($), 1950.

2. (and Pendery, Carolyn H.). Earthquakes in northern California and the 

registration of earthquakes at Berkeley Mount Hamilton Palo Alto 

San Francisco Ferndale Fresno, from January 1, 1943 to March 31, 

1943: Calif. Univ. Seismog. Sta. Bull., v. 13, no. 1, p. 1-32 (t), 1950; 

from April 1, 1943 to June 30, 1943, no. 2, p. 33-82 (t), 1950; from July 

1, 1943 to September 30, 1943, no. 3, p. 83-116 (t), 1950; from October 

1,1943, to December 31,1943, no. 4, p. 117-155 (t), 1950.

3. (and Pendery, Carolyn H.), Earthquakes in northern California and the 

registration of earthquakes at Berkeley Mount Hamilton Palo Alto 

San Francisco Ferndale Fresno Mineral, from January 1, 1944 

to March 31, 1944; Calif. Univ. Seismog. Sta. Bull., v. 14, no. 1, p. 

1-33 (t), 1950; from April 1, 1944 to June 30, 1944, no. 2, p. 34-77 (t), 

1950; from July 1,1944 to September 30,1944, no. 3, p. 78-138 (t), 1950; 

from October 1,1944 to December 31, 1944, no. 4, p. 139-188 (I), 1951.

Hersey, John B. See Ewing, W. M., 2. 

Herz, Norman.

Cross section through the Maryland Piedmont obtained from the BaltimorePatapsco aqueduct [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1469, 

Dec. 1950.

Hess, Harold D. See Kauffman, A. J., Jr., 2. 

Heuer, Edward. See Cline, L. M., 2. 

Hewitt, Donald F.

1. Geology of Skead Township, Larder Lake area: Ontario Dept. Mines Ann. 

Rpt, v. 58, pt. 6, 1949, 43 p., illus. incl. geol. map, 1951. Skead Township, in the Kirkland Lake-Larder Lake gold belt, is located approximately 100 miles north of Sudbury, Ontario. The petrologic and structural relations of the pre-Cambrian sedimentary, volcanic, and intrusive rocks are described. Chemical analyses of andesite and intrusive 

porphyries from an earlier report are reprinted, and 2 new analyses 

of post-Keewatin intrusive rocks are given. Gold occurrences and properties are described, but as yet there has been no important commercial 

development.

980682° 52 9
126 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Hewitt, Donald F. Continued

2. Asbestos in Ontario: Ontario Dept. Mines, Indus. Mineral Circ. 1, 7 p. ($), 

Apr. 1950. Briefly describes asbestos occurrences in Ontario and their 

geologic characteristics, together with notes on evaluation, specifications, 

and uses.

3. Industrial minerals in Ontario: Canadian Min. Jour., v. 71, no. 11, p. 155- 

165, illus. incl. geol. sketch maps, Nov. 1950. Describes the occurrence 

and development of such mineral resources as sand, gravel, limestone, 

clay, feldspar, mica, asbestos, silica, nepheline syenite, and gypsum.

Hewitt, Forrest Alan.

(and Baker, Roger Crane, and Billingsley, Granville Alton). Ground-water 

resources of Ashley County, Arkansas: Ark. Univ., Inst. Science and 

Technology, Research Ser. no. 16, 35 p., illus., Mar. 1949. The Tertiary 

and Quaternary formations are described with respect to their groundwater possibilities. Ground water occurs mainly in the Cockfleld sand 

of Eocene age and in Pleistocene and Recent sands. A section on chemical composition of the water is included.

Heyl, Alien Van, Jr. See Behre, C. H., Jr. 2.

Hibbard, Claude William.

1. (and Villa R., Bernardo). El bisonte gigante de Mexico: Anales del Institute de Biologla Mexico, t. 21, no. 1, p. 243-254, illus., 1950. Portions 

of the skull and horns of specimens of large bison from the Pleistocene 

of Mexico, now in the collection of the Muse'0 Nacional de Historia 

Natural, are described. The specimens are assigned to Bison chaneyi 

Cook, and comparison of measurements is made with the holotype from 

Texas.

2. Mammals of the Rexroad formation from Fox Canyon, Kansas: Mich. Univ. 

Mus. Paleontology Contr., v. 8, no. 6, p. 113-192, illus., June 29, 1950. 

A fauna of 88 forms (shrews, bats, mice, rats, voles) of Pliocene age 

occurring in the Rexroad formation in Meade County, Kansas, is 

described. Three new genera and several new species are named. The 

Rexroad formation and its correlations are discussed.

3. (and Keenmon, Kendall A.). New evidence of the lower Miocene age of 

the Blacktail Deer Creek formation in Montana: Mich. Univ. Mus. 

Paleontology Contr., v. 8, no. 7, p. 193-204, illus., July 28, 1950. Gives 

a measured section of the Blacktail Deer Creek formation (type section) from Beaverhead County, Montana, and describes the two mammal 

species (one of which is new) on the basis of which the lower Miocene 

age of the formation is established.

4. (and Wilson, John Andrew). A new rodent from subsurface stratum in 

Bee County, Texas: Jour Paleontology, v. 24, no. 5, p. 621-623, illus.,

Sept. 1950. A new species of geomyid rodent, Grangerlmus seUardsi, is

established On the basis Of a fragmentary lower jaw found in well 

cuttings from Bee County, Texas. The age is Oligocene or Miocene.

V. S.

Hicks, Forrest L.

Formation and mineralogy of stalactites and stalagmites: Natl. gpeleol 

SOC. Bull. 12, P. 63-72, illllS., NOT, 19DO, "Stalactites and stalagmites

are shown to be formed from over sixty minerals and several other 

substances by a precipitation of the mineral, by solidifying from its 

liquid state, and by several less common means. Factors affecting their

rate of growth, and their shape include the rate of incoming flow. rat6 Of evaporation, cnemicai composition <>* tue solution, c^a tne S i=>o 

of the stalactite or stalagmite." 

Hicks, H. S.

Geology of the iron deposits of Steep Rock Iron Mines Ltd.: Precambrian, V.

23, DO. 5, P. 8~10, 13, geOl. Sketch map, May 195O. Stticly of the preCambrian Cou'tchiching, Keewatin, Laurentian, and Steeprock series, 

and the Algoman intrusives in the area of Steeprock Lake, Ontario, 

shows that the iron deposits have been formed at the contacts between 

carbonate intrusives and volcanics. V. S.

Hiestand, Thomas Cleon. See Summerford, H. E
BIBLIOGRAPHY 127

Higazy, Riad A.

Significance of the orthoclase-albite-anorthite, and the NaAlSiCVKAlSiCX-SiOz 

equilibrium diagrams in igneous petrogeny: Am. Mineralogist, v. 35, nos. 

11-12, p. 1039-1048, illus., Nov.-Dec. 1950. The formation of potashand soda-rich rocks by differentiation from a basaltic magma cannot be 

satisfactorily explained either by the Or-Ab-An or the NaAlSiCVKAlSiCV 

SiOs equilibrium diagrams. It is suggested that such rocks may be 

enriched through metasomatic processes or may be formed from crystallization of potash-rich granitic, or soda-rich spilitic magmas.

Hild, John Henry. See Volin, M. E.

Hildebrand, Fred A. See also Bates, T. F., 2.

Orbicular tinguaite dikes near Bryant, Saline County, Arkansas [abs.]: Am. 

Mineralogist, v. 35, nos. 3-4, p. 283, Mar-Apr. 1950.

Hildebrandt, A. B. See Boucher, F. G.

Hill, Robert Scott. See Thoenen, J. R.

Hill, William Lee. Sec Henclricks, S. B.

Hintze, Lehi F.

(and Webb, Gregory W.). Ordovician stratigraphy from central Utah to 

central Nevada [abs.] : Geol. Soc. Am. Bull:, v. 61, no. 12, pt. 2, p. 1524, 

Dec. 1950.

Hoadley, John William.

Preliminary map, Zeballos, British Columbia (map and descriptive notes) : 

Canada Geol. Survey Paper 50-9, 4 p. (t), geol. map, 1950. The 

Zeballos map-area, on the west coast of Vancouver Island, is characterized by strongly faulted Triassic volcanic and sedimentary rocks and 

Jurassic or Cretaceous granitic intrusions. V. S.

Hoagland, A. D. See Lasky, S. G., 1.

Hobbs, William Herbert.

The Pleistocene history of the Mississippi River: Science, v. Ill, no. 2880, p. 

260-262, illus., Mar. 10, 1950. Changes in the upper course of the river 

are traced through four glacial advances during the Pleistocene, with 

indication of the relation of the glacial invasions and recessions to 

seasonal meltwater streams and sediments deposited in the Gulf of 

Mexico. Sketch maps are given. V. S.

Hobson, Henry David.

Sacramento Valley region [Calif.], in Symposium on possible future oil provinces of the Pacific Coast region [abs.] : Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 12, p. 2382-2383, Dec. 1950.

Hodgson, Ernest Atkinson.

The Saint Lawrence earthquake, March 1,1925 : Canada Dominion Observatory 

Pubs., v. 7, no. 10, p. 365-436, illus., 1950. Gives a detailed account of the 

St. Lawrence earthquake which occurred in the lower St. Lawrence 

Valley and caused considerable damage in the region east of Quebec City. 

The epicenter is placed at 47°6' N. Lat., 70°!' W. Long.

Hodgson, John Humphrey.

1. The implications of the Poulter method to the problem of seismic prospecting 

in southwestern Ontario: Canadian Min. Met. Bull. no. 461, p. 486, Sept. 

1950; Canadian Inst. Mining and Metallurgy Trans., v. 53, p. 320, 1950. 

On the basis of the conditions which caused negative results in previous 

seismic investigations, it is concluded that the Poulter method might 

improve the results, but that no great benefit would be derived therefrom.

2. (and Milne, W. G.). Direction of faulting in certain earthquakes of the 

North Pacific [abs.] : Royal Soc. Canada Proc., 3d ser., v. 44, p. 226-227, 

1950; Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1546, Dec. 1950.
128 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Hodson, 6. Keith. i

(and Dake, Henry Carl). Opal mines and mining in Nevada: Mineralogist, 

v. 18, no. 4, p. 171-179/198, 200, 202, 204, illus., Apr. 1950. The Rainbow 

Ridge mine, in Virgin Valley, Humboldt County, leading opal producer 

in the United States, is described. . V. S.

Hoffacker, B. L., Jr.

Resume" of the drilling and stratigraphy of the L. D. Wilson deep test: Producers Monthly, v. 14, no. 10, p. 20-23, illus., Aug. 1950. Data are given 

on the subsurface Ordovician, Silurian, and Devonian strata encountered in the drilling of L. D. Wilson No. 18, Bradford quadrangle, northern Pennsylvania. A detailed section is given.

Hoffmeister, John Edward.

Recent coral reefs: Tulsa Geol. Soc. Digest, v. 18, p. 73-74, 1950. A brief 

summary of important points to be considered in the interpretation of the 

structure and origin of modern reefs.

Hofker, J.

What is the genus Eponidesl: Micropaleontologist, v. 4, no. 1, p. 15-16, Jan. 

1950. Briefly discusses the nomenclatural confusion of BoUvinita and 

Eponides, and gives a revised description of the latter.

Hogg, Nelson.

The Porcupine gold area: Canadian Min. Jour., v. 71, no. 11, p. 102-106, geol. 

sketch map, Nov. 1950. The pre-Cambrian geology, structure, mineralization, and ore bodies of the Porcupine gold area in eastern Ontario are 

described.

Hogue, William G.

(and Wilson, Eldred Dewey).. Arizona zinc and lead deposits; Bisbee or 

Warren district: Ariz. Bur. Mines Bull. 156, Geol. Ser. 18, p. 17-29, illus. 

incl. geol. map, Apr. 1950. Brief information on the structure and ore 

deposits of the area.

Holdredge, Claire Parker.

1. (and Wood, Hiram B.). Problem of decomposed dikes and hydrothermally 

altered joints at Pine Flat Dam, California [abs.]: Geol. Soc. Am. Bull., 

V. 61, no. 12, pt. 2, p. 1470, Dec. 1950.

2. (and Wood, Hiram B.). Foundation geology at Pine Flat Dam, Kings 

River, California tabs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1524, 

Dec. 1950.

Holke, Kenneth A. See Bailly, R. J., 2.

Holland, Heinrich D.

1. (and Kulp, John Laurence). Geologic age from metamict minerals: Science, v. Ill, no. 2882, p. 312, Mar. 24, 1950. It has been shown that some

isodesmic multiple oxides, such as gadolinite and microiite, occurring 

in the metamict state, can be converted by heating to the crystalline

state with evolution of heat. Assuming tli.-xt those minerals were origiDallY Crystalline, It IS Suggested that their geologic age may be estimated 

by measurement of the length of time required fOl1 lattlCG deStrilCtiOD,

V. S.

2. (and Kulp, John Laurence). Adsorption of radio-elements on ocean-bottom

sediments [abs.1 : Geol. Soc. Am. Bull., V. 61, HO. 12, pt. 2, P. 1470, DeC. 

1950,

Holland, William Y. See McConnell, D., 1. 

Hollingsworth, Richard Vincen. See Kapner, H. H.

Hollister, John Chamberlain.

Geophysics grows at "Mines": Mines Mag., v. 40, no. 10, p. 53-59, illus., Oct. 

1950. The geophysical instruction and courses, and the laboratories and 

equipment at the Colorado School of Mines, Golden, Colorado, are 

described.
BIBLIOGRAPHY 129

Holmes, Charles R.

Magnetic fields associated with igneous pipes in the central Ozarks: Min. Eng., 

v. 187, no. 11, p. 1143-1146, illus., Nov. 1950; A. I. M. B. Trans., v. 187, 

1950. In southeastern Missouri, numerous igneous intrusives occurring 

in Cambrian strata are believed to represent explosion tubes of postDevonian and probably Cretaceous age. A detailed magnetic study of 

one of the intrusives, near Avon, is described. Tb.e results substantiate 

the inferred origin.

Holmes, Clifford Newton. See also Combo, J. X.

Effect of the Uncompahgre uplift on the Mesozoic sedimentary rocks of western 

Colorado [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1470-1471, 

Dec. 1950.

Holmes, G. William.

Correlation of erosion surfaces on the west flank of the Wind River Mountains, 

Wyoming [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1471, Dec. 

1950.

Holser, William Thomas.

Metamorphism and associated mineralization in the Philipsburg region, Montana : Geol. Soc. Am. Bull., v. 61, no. 10, p. 1053-1090, illus. incl. geol. 

maps, Oct. 1950. A field investigation, as part of a study of allochemical metamorphism and its relations to high-temperature hydrothermal 

activity. Intrusive contacts of several granodiorite bodies with calcitic, 

doloniitic, and shaly limestones in the Philipsburg region, Montana, 

are described in detail. The various stages of metamorphism and the 

mineralization accompanying each stage are discussed. Several largescale geologic maps and sections are given.

Holt, Thomas C. See Bemrose, J.

Holtedahl, Olaf.

Supposed marginal fault lines in the shelf area off some high northern lands: 

Geol. Soc. Am. Bull., v. 61, no. 5, p. 493-500, illus., May 1950. "Studies 

of the shelf topography off Norway indicate that the high northwestern 

part of the Scandinavian Peninsula is bordered by fractures along which 

dislocations probably took place during the Tertiary uplift of the land 

mass. . . . attention is drawn to the fact that similar relief features 

are characteristic also of shelf areas off West Greenland and Labrador."

Honkala, Fred S. See McLaughlin, K. P., 3.

Honke, Martin T., Jr. °

(and Ver Planck, William E., Jr.). Mines and mineral resources of Sonoma 

County, California: Calif. Jour. Mines and Geology, v. 46, no. 1, 

p. 83-141, Jan. 1950. Local geology is characterized by widespread 

outcrops of Franciscan sandstones, Pliocene sediments and volcanics in 

the southeast, and evidence of'chromite, coal, copper, diatomite, graphite, 

magnesite, manganese, petroleum, quicksilver, and construction-material 

deposits. Mines and prospects are described, and a bibliography is 

given. V. S.

Hooijer, Dirk A.

The study of subspecific advance in the Quaternary: Evolution, v. 4, no. 4, p. 

360-361, Dec. 1950. Discusses the trend toward decreasing size in 

Quaternary faunas as compared to the trend toward larger size in Tertiary species, and outlines some of the pertinent problems in connection 

with a study of the evolutionary factors.

Hook, John W. See Oder, C. R. L. 

Hooker, Marjorie. See Thorn, E. M. 

Hoover, William B.

Jurassic formations of parts of Utah, Colorado, Arizona, and New Mexico, 

in Guidebook of the San Juan Basin,'New Mexico and Colorado, p. 76-81, 

illus., 1950. The Glen Canyon, San Raphael, and Morrison groups of 

the Jurassic are described briefly and correlations are discussed.
130 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Hopkins, David Moody.

(and Sigafoos, Robert S.). Frost action and vegetation patterns on Seward 

Peninsula, Alaska [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 

1471, Dec. 1950.

Hopkins, Harold.

Geology of the Wright-Hargreaves mine: Ontario Dept. Mines Ann. Rpt., 1948, 

v. 57, pt. 5, p. 161-176, illus., 1950. Description of the general geology, 

structure, faulting, vein mineralization, wall-rock alteration, and ores 

of the Wright-Hargreaves gold mine in the Kirkland Lake area, northern 

Ontario.

Hopkins, Joan Prewitt.

(and Frondel, Clifford). Thermal decomposition of zinc sulfide polymorphs: 

Am. Mineralogist, v. 35, nos. 1-2, p. 116, Jan.-Feb. 1950. The known five 

polymorphs of ZnS decompose to zincite. V. S.

Hopkins, Oliver Baker.

1. The Leduc oilfield and its significance: Geol. Assoc. Canada Proc., v. 2, p. 

. 11-25, illus., Apr. 1950. General information on the geologic setting of 

the Leduc oil field in Alberta, Canada, is presented, together with development and production data.

2. Oil in western Canada: Oil and Gas Jour., v. 49, no. 13, p. 54-57, illus., Aug. 

3, 1950. A brief account of the geologic possibilities for oil in western 

Canada and recent exploration activity.

Hoppin, Richard A.

(and Norman, L. A., Jr.). Commercial "black granite" of San Diego County, 

California: Calif. Dept. Nat. Kes., Div. Mines Spec. Rpt. 3, 19 p., illus., 

Dec. 1950; abs. by R. A. Hoppin with title Composition and quality of the 

"black granite" dimension stone of San Diego County, California, Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1524-1525, Dec. 1950. Presents 

the results of field and laboratory investigations. Composition and 

texture, nature of weathering, structural features, and hydrothermal 

alteration are described. The cause of staining in granite monuments 

is discussed, and recommendations for industrial utilization are made.

Horberg, Carl Leland.

1. Bedrock topography of Illinois: 111. State Geol. Survey Bull. 73,111 p., illus., 

incl. geol. map, 1950. A comprehensive report on the bedrock topography, compiled to facilitate ground-water investigations. Detailed 

data on the physiographic divisions, bedrock valley systems, erosional

history, and ground-water resources are given. Among the illustrations

area generalized geologic map of the state. a°bedrock surface topOgraphic map, and a map of preglacial drainage systems.

2. Groundwater in the Peoria region, Part 1, Geology: 111. "State Geol. Survey 

Bull. 75, p. 1-49, illus. incl. geol. map, 1950. The Paleozoic formations 

of the area, the bedrock topography, and the glacial deposits are described insofar as they affect the ground-water conditions. The aquifers are classified. Development of ground-water supplies is discussed.

Bedrock Surface ana areal geology maps are included. 3 Preglacial gravels in Henry County, imnois: in. state Acad. sci. Ti-ans.. 

v. 43, p. 171-175, illus., 1950; 111.,State Geol. Survey Circ. 170, 1951.

The Tertiary gravels exposed in a road cut near Kewanee, Henry County, 

Illinois, are described and correlated, and a measured section is given.

The origin is discussed.

4. Interrelations Or geoinorphology, m^Lai Sooloey, an <3 Pleistocene geology

[abs.]: Geol. Soe. Am. Bull., v. 61, no. 12, pt. 2, p, 1472, Dec, 1900, 

Horner, Seward E.

<nr,d McNeai John D.). Applications of geology to highway engineering, in Applied geology, a symposium; «ol°- s^ooi o* Mine» Q^^t.,%. 45. Q06VB

P. 155-191, nius., Jan. 1950. Points discussed are the organization and

functions of a state highway geology section, and the particular functions

and responsibilities of the highway geologist. The operation of the 

Kansas state highway geology section is described. Discussion by D. 

H. Griswold, R. F. Rhoades, and F. M. Van Tuyl is included.
BIBLIOGRAPHY 131

Horr, W. H. See Dreyer, R. M.

Hose, H. R.

The geology and mineral resources of Jamaica: Colonial Geology and Mineral 

Resources (London), v. 1, no. 1, p. 11-36, illus. incl. geol. map, 

1950. The physical features, stratigraphy, minerals, and ground water 

supplies are described. The strata consist of Cretaceous, Tertiary, and 

Quaternary shales, conglomerate, and limestones. Among the mineral 

resources are bauxite, copper, limestone, gypsum, and phosphates.

Hoskins, John Hobart.

(and Cross, Aureal T.). A study of some lower Mississippian species of 

Callixylon [abs.] : Am. Jour. Botany, v. 37, no. 8, p. 673, Oct. 1950.

Hotz, Preston Enslow.

1. Diamond-drill exploration of the Dillsburg magnetite deposits, York County, 

Pennsylvania: U. S. Geol. Survey Bull. 969-A, p. 1-27, illus. incl. geol. 

maps, 1950. The Triassic sedimentary rocks and the intruded diabase 

of the Dillsburg region in southern Pennsylvania are described. Mineralization occurred along with the diabase intrusion resulting in magnetite replacing beds of limestone conglomerate. The origin of the 

magnetite is discussed, and the deposits are described.

2. Origin of granophyre in diabase in southeastern Pennsylvania [abs.]: 

Geol'. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1472, Dec. 1950.

Hough, Jack Luin. S'ee Goldman, M. I.

Hough, Jean Ringier.

The habits and adaptation of the Oligocene saber tooth carnivore, Hoplophoneus: U. S. GecJl. Survey Prof. Paper 221-H, p. 125-135, illus., 1950. 

The anatomy of Hoplophoneus is described in detail, particularly with 

reference to the use of the saber teeth. The study indicates that some 

of the hunting habits were feline, but that the more highly developed 

feline habits had not yet appeared.

Houser, Frederick Northrop. See Cathcart, J. B., Jr., 2. 

Houston, Max Sherman. See Byrne, F. E., 2.

Howard, Arthur David.

1. An observation bearing on the problem of exfoliation: Jour. Geology, v. 58, 

no. 2, p. 155-156, Mar. 1950. The absence of exfoliation in various 

pebbles, subjected for 13 years to a temperature variation of 50 to 

212 F, lends support to Blackwelder's thesis that exfoliation is due 

primarily to chemical changes. V. S.

2. Till isopleth map of northeastern Montana and northwestern North Dakota 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1525, Dec. 1950.

Howard, Hildegarde.

Fossil evidence of avian evolution : Ibis, v. 92, no. 1, p. 1-21, illus., Jan. 1, 1950. 

The evolution of the Colymbiformes, Sphenisciformes, Procellariiformes, 

. Pelecaniformes, Ciconiiformes, Anseriforrnes, Falconiformes, Gruiformes, Charadriiformes, Strigiformes, and Passeriformes, for which 

paleontological data are available, is traced from early Cretaceous 

through Tertiary time. The flightless terrestrial birds are discussed 

as a unit termed "Ratites". A bibliography is given.

Howard, W. K. See Treasher, R. C. 

Howe, Elbridge Gerry. See Thoenen, J. R.

Ho well, Benjamin Franklin.

1. A new conularid from the Silurian Sodus formation of New York: Wagner 

Free Inst. Sci. Bull., v. 25, no. 1, 4 p., illus., Feb. 1950. Describes a 

new species of Conulariidae, Metaconularia sinclairi, collected from 

the gray shale of the Middle Silurian Sodus formation near Rochester, 

New York. V. S.
132 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Howell, Benjamin Franklin Continued

2. (and Roberts, Henry, and Willard, Bradford). Subdivision and dating 

of the Cambrian of eastern Pennsylvania: Geol. Soc. Am.. Bull., v. 61, 

no. 12, pt. 1, p. 1355-1367, illus., Dec. 1950. The Cambrian in eastern 

Pennsylvania consists of a basal quartzite of Lower Cambrian age overlain by limestones. These are now divided into the Leithsville, Limeport, and Allentown formations. The latter two are of Late Cambrian 

age, but the age of the Leithsville is as yet undetermined.

Howell, Jesse V.

Notes on the Rocky Mountain Trench: Tulsa Geol. Soc. Digest, v. 18, p. 54-58,' 

1950. A bibliography of articles pertinent to a study of the Rocky 

Mountain Trench extending from northwestern Montana to northern 

British Columbia.

Hoylman, Homer Wayne.

Evaluation of magnetics in Delaware Basin [Texas] [abs.] : Oil and Gas Jour., 

v. 49, no. 32, p. 102, Dec. 14,1950.

Hriskevitch, M. E.

Preliminary map, Little Rattling Brook, Newfoundland: Canada Geol. Survey 

Paper 50-17, geol. map, 1950. A geologic map, with notes, of the Little 

Rattling Brook area, near Botwood, Newfoundland, showing mainly 

volcanics of Middle Ordovician age and sedimentary and granitic rocks 

of Devonian age. V. S.

Hseung, Yi.

(and Marshall, Charles Edmund, and Krusekopf, H. H.). On the origin of 

gumbotil: Soil Science Soc. Am. Proc. 1949, v. 14, p. 311-315, 1950. The 

procedure and results of mineralogical and mechanical studies of two 

sections of loess, gumbotil and till, near Columbus, Missouri, are described. It is concluded that the gumbotil is not a pedogenic horizon in 

the weathered till section, but formed as a water deposit of highly 

weathered clay derived from till.

Hubbard, Bela.

Coal as a possible petroleum source rock: Am. Assoc. Petrol. Geol. Bull., v. 34, 

no. 12, p. 2347-2351, Dec. 1950. Using the information on American 

lignite occurrence and properties, as given in U. S. Bureau of Mines 

Bulletin 482, and other sources, the author arrives at a figure of about

150 billion tons of hydrocarbons and hydrocarbon-like .compounds in

Paleocene, Eocene, or early Tertiary formations. On the basis of the 

high wax content in peat and lignite as compared with little or none 

in coals of higher rank, it is suggested that the wax constituents may

liquefy and form petroleum.

Hubbard, George David. See Rotnrock, B. P.

Hufcer, Walter.

GeolOglSCh-petrOgraphiSChe Untersuclmngen in der innern Fjordregion des

Kejser Franz Josephs Fjord-systems in Nordostgronland: Meddelelser

om Gr0nland, Bind 151, no. 3, 84 p., illus., 1950. Geologic and petrographic investigations were made to determine the age of the Vela "Massif 

metamprphic complex in the vicinity of Kejser Franz Josephs Fjord

and Kong Oscars Fjord, East Greenland. A continuous transition from 

the Sedimentary Eleonore Bay formation and Petermann series (Upper

Aigonkian) into the metamorphic rocks can be established. The metamorphism is approximately Caledonian in age. 

Hudson, H. E., Jr. See Buswell, A. M.

Huff, Lyman Coleman. See Hnwkes, TT E., Jr., 2 ; Levering, T. S., 4.

Hughes, Darrell Stephen.

{and Jones, H. J.). Variation of elastic moduli of igneous rocks with pressure

and temperature: Geol. Soc. Am. Bull,, v. 61, no. 8, p. 843-856, illus.,

Aug. 1950. The apparatus and laboratory procedure are described.

The measurements made on five specimens, grange, auarf 

andesite, norite, and diorite, are presented and discussed.
BIBLIOGRAPHY 133

Hulin, Carlton Dewey.

Mineral deposits of Idaho: 51st Ann. Rpt., Mining Industry of the State of 

Idaho for 1949, p. 60-63 [1950]. General comments on ore bodies and 

mineralization in Idaho, as given at the annual meeting of the Idaho 

Mining Association.

Hume, George Sherwood.

Geology of the bituminous sands area, in Drilling and sampling of bituminous 

sands of northern Alberta, Vol. I, Results of investigations, 1942-1947: 

Canada Bur. Mines, p. 7-13, 1949. The bituminous sands occur in the 

McMurray formation of Lower Cretaceous age. The deposition of the 

sands and origin and character of the bitumen are discussed.

Hummel, Floyd A. See also Ricker, R. W.

Synthesis of uvarovite: Am. Mineralogist, v. 35, nos. 3-4, p. 324-325, Mar.-Apr. 

1950. Experimental work on the synthesis of garnet by dry reaction 

using pure oxides indicates that grossularite and andradite cannot be 

produced. Uvarovite was produced at various temperatures and duration runs. X-ray data for the synthetic uvarovite is compared with that 

for natural material.

Humphrey, R. A. See Hatch, R. A.

Hunt, C. Warren..

1. Preliminary report on Whitemud oil field, Alberta, Canada: Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 9, p. 1795-1801, illus., Sept. 1950. Describes the stratigraphy and structure of the Whitemud oil field, E'df monton district, Alberta, producing from the Quartz Sand series, here 

named "Ellerslie member" of the Blairmore formation, at the base of the 

Lower Cretaceous. The position of oil accumulation on the structure 

appears closely controlled by stratigraphic conditions. V. S.

2. Preliminary report on Joseph Lake oil field, Alberta, Canada: Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 9, p. 1802-1806, illus., Sept. 1950. The 

Joseph Lake oil field, Edmonton District, Alberta, produces from the 

marine Viking member of the Colorado shale, of Cretaceous age. The 

structure of the field is anticlinal and originated from differential subsidence after Viking deposition. V. S.

Hunt, Charles Butler.

1. Military geology, in Application of geology to engineering practice, Berkey 

Volume, p. 295-327, illus., Geol. Soc. Am., New York, 1950. The application of geologic principles and information to the solution of military 

problems is discussed. The Military Geology Unit of the United States 

Geological Survey, which supplied strategic area reports to the Army 

during World War II, is described, and the scope of its work discussed.

2. (and Sokoloff, Vladimir Petrovich). Pre-Wisconsin soil in the Rocky Mountain region, a progress report: U. S. Geol. Survey Prof. Paper 221-G, p. 

109-123, illus., 1950. Discusses an ancient soil in the Lake Bonneville 

and Denver Basins, which consists of red-brown leached clay overlying 

lime-enriched weathered parent material. This soil has been discovered 

on many different parent materials, in many topographic positions, and 

at various altitudes in the Rocky Mountain region. It is useful for 

distinguishing late Pleistocene and Recent features from earlier ones. 

A bibliography is given. V. S.

Hunt, John M.

Infrared spectra of clay minerals, in Infrared spectra of reference clay minerals : Am. Petrol. Inst. Project 49, Clay Mineral Standards, Prelim. Rpt. 

8, p. 105-121, July 1950.

Hunt, Richard N.

(and Peacock, H. G.). Lead and lead-zinc ores of the Bingham district, Utah, 

in Dunharn, K; C., ed., Symposium on ... lead and zinc: Internat. Geol. 

Gong., ISth, Great Britain, Rpt. pt. 7, p. 92-96, illus., 1950; abs., Volume 

of titles and abstracts, p. 45-46,1948. The lead-zinc ores occur as fissure, 

veins and replacements in Pennsylvanian strata in a zone surrounding 

the Utah Copper monzonitic stock and its adjacent area of mineralization. The chief ore minerals are galena, sphalerite, and pyrite.
134 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Hunter, Charles Eugene.

Vermiculite of the southeastern States, in Snyder, F. G., ed., Symposium on 

mineral resources of the southeastern United States, p. 120-127, illus., 

1950. Describes and discusses the occurrence and origin of the vermiculite deposits in North Carolina and South Carolina. Minor occurrences 

in nearby states are mentioned.

Hunter, La Verne D.

Evidence of uplift in the Bighorn Mountains during Upper Cretaceous time 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1554, Dec. 1950.

Hunter, William S? Jr.

The Kemmerer coal field: Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, 

p. 123-132, illus., 1950. The coal beds in the Frontier and Adaville formations (Cretaceous) in the Kemmerer area, southwestern Wyoming, 

are described.

Kurd, Paul.

Fulgurites: Rocks and Minerals, v. 25, nos. 3-4, p. 135, Mar.-Apr. 1950. Fulgurites occur in the sands of dunes near Stevensville and Riverside on 

Lake Michigan. V. S.

Hurlbut, Cornelius Searle, Jr.

1. Studies of uranium minerals (IV) ; johanuite: Ana. Mineralogist, v. 35, nos. 

7-8, p. 531-535, illus., July-Aug. 1950. X-ray crystallographic data are 

presented. The formula of johannite is CuU2 (SO4) 2 (OH)io.2H2O.

2. Childrenite-eosphorite series: Am. Mineralogist, v. 35, nos. 9-10, p. 793-805, 

illus., Sept.-Oct. 1950. Physical, optical, and chemical data for eosphorite, and optical data for childrenite are given, based on re-examination 

of material. The optical work showed the presence of twinning in all 

well-crystallized specimens. The crystal form is .therefore monoclinic 

rather than orthorhombic. The formula of eosphorite is MnAl(PO4 ) 

(OH) 2 .H2 0; that of childrenite is FeAl(P04 ) (OH) 2 .H2 0.

3. Beryl at Mt. Mica, Maine [abs.]: Am. Mineralogist, v. 35, nos. 3-4, p. 283,

Mar.-Apr. 1950.

4. Monochroruator utilizing the rotary power of quartz [abs.] : Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1473, Dec. 1950.

Hurley, Patrick Mason.

1. Distribution of radioactivity in granites and possible relation to helium age 

measurements: Geol. Soc. Am, Bull., v. 61, no. 1, p. 1-8, illus., Jan. 1950. 

Alpha particle emission from granulated granite samples is much larger 

than that from their known total radioactive contents and suggests a

surficial distribution of radioactive elements on the granules and partial

removal of elements by ground water acid. Such losses may be related 

to the retention of helium in different igneous rocks. V. S.

2. Progress report on age measurements: Am Geophys. Union Trans., v. 31, 

no. 1, p. 142-144, Feb. 1950. Age measurements on the pre-Cambrian 

rocks of the North-Atlantic continent by various radioactive methods are

correlated with directions of structural trends. It is noted that the

histoi-y of a r>re-Cambrian area is best preserved by sets of major 

structures which have persistent directions. V. S.

3. (and Thompson, James B., Jr.). Airborne magnetometer and geological

reconnaissance survey in northwestern Maine: Geol. Soc. Am. Bull., v.

61, no. 8, p. 835-841, geol. map, Aug. 1950. Presents the results of an

aeromagnetic survey in the Moosehead Lake area undertaken in conjunction with a survey of asbestos possibilities. The geology of the region

is discussed, and a geological map with superimposed total magnetic

intensity variations is'shown. Among the modifications made to the

geology of the area was the placing of a large area of granite unconformably below a Siluro-Devonian section.

4. Progress report to the Committee on tne measurement o£ geologic time; 

Natl. Research Council, Div. Geology and Geography, Rpt. of the Committee on the measurement of geologic time, 1949-1950. Exhibit A, 

p. 25-28 (I), Nov. 1950. Work at the Massachusetts Institute of Technology on ocean bottom cores, Columbia Plateau basalts, alteration zones, 

and radionuclides, during the past year, is reviewed briefly.
BIBLIOGRAPHY 135

Hurley, Patrick Mason Continued

5. Progress report on geologic time measurement [abs.]: Science, v. 112, no. 

2912, p. 453, Oct. 20, 1950.

Hurst, Macleod Ewart.

1. General geology of Ontario: Canadian Min. Jour., v. 71, no. 11, p. 96-101, illus. 

incl. geol. map, Nov. 1950. The general geology of the province is outlined, with particular reference to the men who have carried on investigations of various areas. The map shows the general distribution of 

Archean, Proterozoic, Paleozoic and Mesozoic rocks.

2. Iron in Ontario: Canadian Min. Jour., v. 71, no. 11, p. 144-151, illus., Nov. 

1950. Describes the various occurrences of iron ore in Ontario, including the Steep Rock mine, the Helen mine, and the Josephine mine. Data 

on the type and grade of ore, and reserves are given, together with 

an index map of deposits.

Hussey, Keith Morgan.

1. (and McNulty, Charles Lee, Jr.). Pltmularia, planotrocMformis, a new 

species showing variation in the genus: Jour. Paleontology, v. 24, no. 4, 

p. 472-473, illus., July 1950. "The new species, Planularia planotrocMformis, is described. The gradation from perfectly planispiral to 

strongly trochoid forms is emphasized, and reasons for not recognizing a 

new genus are given."

2. (and Tator, Benjamin A.). Sandstone spindles: Am. Jour. Sci., v. 248, no. 

10, p. 734-740, illus., Oct. 1950. The Dawson arkose (Eocene), outcropping at Corral Bluffs near Colorado Springs, Colorado, exhibits 

relatively small, spindle-shaped structures occurring in closely spaced, 

parallel arrangements on'the surface of exposure. The spindles result 

from the action of ground-water solutions which develop zones of weakness along planes of crossbedding and jointing. Their composition, 

occurrence, and development by weathering are described. V. S.

Hutchinson, George Evelyn.

The biogeochemistry of vertebrate excretion: Am. Mus. Nat. History Bull., v. 

96, 554 p., illus., 1950. A section of this work, the third to appear in the 

"Survey of existing knowledge of biogeochemistry", is devoted to the 

geochemistry of guano minerals, treating the water-soluble minerals, 

the calcium phosphates, magnesium phosphates, aluminum phosphates, 

and the ferric phosphates.

Hutchinson, R. D.

New evidence on the New Brunswick geanticline [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1473, Dec. 1950.

Hutt, Gordon McLean.

To geology students at graduation: Precambrian, v. 23, no. 5, p. 11, 13, May 

1950. Points out various facts of which a student embarking on a 

geological career should be apprised, among which are the importance of 

mastery of written English, the usefulness of languages, and the need for 

early specialization.

Hutton, C. Osborne. 

1. (and Bowen, Oliver E., Jr.). An occurrence of jarosite in altered volcanic 

rocks of Stoddard Mountain, San Bernardino County, California: Am. 

Mineralogist, v. 35, nos. 7-8, p. 556-561, illus., July-Aug. 1950. "The 

hydrated sulfate of potassium and ferric iron, jarosite, has been identified as a minor constituent of pneumatically altered quartz porphyry of 

Juratrias age that outcrops on the south slope of Stoddard Mtn. in the 

Barstow-Victbrville district, San Bernardino County, California. The 

mineral has been identified on the basis of optical and goniometric 

measurements, and this diagnosis has been verified by chemical tests."

2. Allanite from Yosemite National Park and Fiordland, New Zealand [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1525, Dec. 1950.
136 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Hysom, R. L.

The search for oil: Colorado Engineer, v. 46, no 4, p. 9-11, 38, illus., May 15, 

1950. The nature of geophysical, especially gravitational, data used in 

oil search is explained briefly in relation to geologic characteristics.

V. S.

Imbault, Paul E.

1. Preliminary report on the Maicasagi area, Abitibi-East County: Quebec 

Dept. Mines, Geol. Surveys Br., Prelim. Rpt. 231, 8 p. ($), geol. map, 

1949. A brief report on the pre-Cambrian rocks and structure of 

the Maicasagi area in northern Quebec.

2. The Mattagami-Inconnu region: Canadian Min. Jour., v. 71, no. 6, p. 62-66, 

illus. incl. geol. sketch map, June 1950. An east-trending belt of interbedded volcanics and sedimentary rocks characterizes the MattagamiInconnu region in northern Quebec. Syenitic and granitic intrusives 

are also present over a large part of the area. The structure and 

economic possibilities of the region are discussed.

Imbt, Robert Floyd.

(and McCollum, S. V.). Todd Deep field, Crockett County, Texas: Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 2, p. 239-262, illus., Feb. 1950. The stratigraphy and structure of the Paleozoic and Cretaceous beds are described. 

Petroleum is produced from several zones in the Ellenburger formation 

(Ordovician) and from the Strawn crinoidal limestone (Pennsylvanian). Subsurface structure contour maps and several cross sections 

are included. V. S.

Imbt, William C. See also Bartrarn, J. G. ^ 

Carbonate porosity and permeability, in Applied sedimentation, p. 616-632, 

illus., 1950. The principles involved in the formation of porosity and 

permeability in carbonate rocks, and the practical application of these 

characteristics in petroleum work are discussed. Several types of 

future research are suggested.

Imlay, Ralph Willard.

1. Paleoecology of Jurassic seas in the western interior of the United States: 

Natl. Research Council, Report of the Committee on a treatise on marine 

ecology and paleoecology, 1948-1949, no. 9, p. 72-^104, illus., Dec. 1949. 

The extent, depth, and character of the four invasions of Arctic seas 

into the western interior during the Jurassic are described from evidence 

on sedimentary facies and fossil assemblages. Maps and cross sections

StlOWing the distribution of deposits at various stages are included. V. S.

2. Jurassic rocks in the mountains along the W6St Side Of the Green Biver

Basin: Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, p. 36-48, 

illus., 1950. The lithOlOgy, thickness, distribution, and variation of

the Twin Creek limestone in southwestern Wyoming and adjacent parts

Of Utan ancl Iclalio are described. Measured. SectlOnS Rl'C included, flud 

a Correlation table Of JliraSSlC formations in tne western interior region 

is given. 

Imperial Oil, Ltd., Western Division, Geological Staff.

Devonian nomenclature in Edmonton area, Alberta, Canada: Am. ASSOC.

Petrol. Geol. Bull., v. 34, no. 9, p. 1807-1825, illug., Sept. 1950. TuG

temporary nomenclature for the Devonian beds of tne r,educ field, 

geographic3 nanUl"^ Tn^Srf ! .^l^L^TS ai'et fll611 logical, units, and their-characteristics are discussed. A typ%%ecuo|

for each newly named unit is described in detail. V. O. 

Ingerson, Earl.

water content of primitive granitic magma: Am. Mineralogist V 35 

nOS. 940, P. 806-815, lllUS., Sept-OCt. 19SO. "Previous estimates or

water content of magmas are summarized. Assuming that essentially 

the amount of water now on the earth's surface was in a primitive 

atmosphere and that this atmosphere was in equilibrium with a molten 

outer layer of the earth as it began to crystallize, the amount of water 

in this 'primitive magma' can be calculated. It comes out about 3 

percent."
BIBLIOGRAPHY 137

Ingham, Albert Irwin.

McDonald and. adjacent oil fields, Alleghany and Washington Counties, Pennsylvania ; Part 1, Geology: Pa. Geol. Survey, 4th ser., Bull. M29, p. 1-40, 

illus., 1949. The subsurface stratigraphy and structure of'the Upper 

Devonian, Mississippian, and Pennsylvanian in the McDonald, McCurdy, 

Venice, Hopper, and Moon Run-Crafton oil fields in southwestern 

Pennsylvania are presented.

Ingram, Richard E. . Note on the magnification curve of a seismograph recording through a galvanometer: Seismol. Soc. Am. Bull., v. 40, no. 1, p. 21-23, illus., Jan. 1950. 

Seismograph constants are linked by a general equation with the value 

of the earth period, essential for understanding the magnification 

curve. The equation aids a quick appreciation of the curve and may 

help in designing instruments. V. S.

Ingram, W. Frank.

The kyanite, staurolite, and garnet association in Upson County, Georgia: Ga. 

Geol. Survey Bull. 56, p. 85-91, 1950. Petrographic description of thin 

sections of augen gneiss occurring near Thomaston, Georgia.

Inman, Douglas Lamar.

1. Submarine topography and sedimentation in the vicinity of Mugu submarine canyon, California: Calif. Univ., Scripps Inst. Oceanography, Submarine Geology Rpt. no. 10, 42 p., illus., Feb. 16, 1950; Beach Erosion 

Bd. Tech. Memo. 19, 45 p., illus., July 1950. Mugu submarine canyon 

has a ridge on the floor of each of the two branches at its head, but 

otherwise resembles subaerially eroded canyons inland. The canyon 

sediments differ from those of the adjacent shelf areas in size variation 

and distribution. V. S.

2. Suggested standardization of the descriptive parameters in the mechanical 

analysis of sediments: Calif. Univ., Scripps Inst. Oceanography, Submarine Geology Rpt. 15, 14 p. (t), illus., Oct. 1950. Suggests the use 

of five parameters (median diameter, standard deviation, kurtosis, 

and two measures of skewness) to indicate the features of the sizefrequency distribution of a sediment. The parameters are based on 

five percentiles obtained from the cumulative size-frequency curve, 

and give significant differences not obtainable from parameters derived 

from quartile measurements.

Inman, William U.

Clear Creek jadeite: Mineralogist, v. 18, no. 10, p. 451-453, Oct. 1950. A brief 

account of prospecting for jadeite in place on Clear Creek, San Benito 

County, California, and a report of finding several outcrops.

Innes, M. J. S.

Gravity anomalies in northwestern Canada: Bulletin GSodSsique, 1949, no. 12, 

p. 162, June 1949. Data on gravity anomalies from stations between 55° 

and 70° north latitude and between Hudson Bay and the Mackenzie 

River show negative anomalies for all pre-Cambrian stations. These 

anomalies may be due to lack of isostatic adjustment following removal 

of glacial loads.

Insley, Herbert. See also Van Valkenburgh, A., Jr.

Growth of crystals of mica and related fluosilicates [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1474, Dec. 1950.

International Nickel Company of Canada, Ltd.

Ontario nickel industry: Canadian Min. Jour., v. 71, no. 11, p. 134-143, illus., 

Nov. 1950. A part of this article, which deals with all phases of the 

operations of the company at Sudbury, Ontario, is devoted to a description of the nickel intrusive, mineralization, structure, and origin of 

the ore.
Ireland, Hubert Andrew.

Curved surface sections for microscopic study of calcareous rocks: Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 8, p. 1737-1739, Aug. 1950. Describes a 

method for obtaining "curved surface sections" on calcareous fragments. The sections are used in place of ground surfaces or thin sections for microscopic examination of texture, fabric, inclusions, and 

other features. Uses and advantages are discussed.

Irish, Ernest James Wingett.

Daniels Flats map-area, Alberta (report and map) : Canada Geol. Survey 

Paper 50-12, 29 p. ($), illus. incl. geol. map, 1950. The Daniels Flats 

area, in the eastern part of the Foothills belt of west-central Alberta, 

is underlain by a succession of folded and faulted marine and nonmarine sediments of Lower Cretaceous through Taleocene (?) age, 

containing several bituminous coal seams. The formations and structure are described. Cross sections and a geologic map are given. V. S.

Irish, Ruth. See Warren, H. V., 3.

Islas Leal, Juventino. See Basurto Garcia, J.

Isotoff, Andrei. See Snavely, P. D., Jr.

Ives, Ronald Lorenz.

1. Laboratory power supply for vibrator-type portable Geiger counters: Econ. 

Geology, v. 45, no. 3, p. 245-248, illus., May 1950. Describes a transformer-rectifier-filter device for powering vibrator-type portable Geiger 

counters in the laboratory. Construction, basic circuit, voltage adjustment, and battery, recharging are indicated. V. S.

2. Glaciations in Little Cottonwood Canyon, Utah: Sci. Monthly, v. 71, no. 2, 

p. 105-117, illus., Aug. 1950. Describes early Cambrian (?) and Pleistocene glaciations in the Wasatch Mts., Utah. The moraines in Little 

Cottonwood Canyon are mapped and discussed. The glacial stages in 

this area are correlated with those in Monarch Valley, Colorado.

Jacobs, Elbridge Churchill.

The physical features of Vermont. 169 p., illus., Vt. State Dev. Comm., Feb. 

1950; abstracts, Geol. Spc. Am. Bull., v. 60, no. 12, pt. 2, p. 1970-1971, 

Dec. 1949; Earth Sci. Digest, v. 4, no. 6,-p. 19, Jan. 1950. The physiographic provinces of Vermont are described, introduced by a 50-page 

resume" of general geology and mineralogy. The last 70 pages are 

devoted to a very useful index of mountains, lakes, streams, and other 

features, giving their location by town, county, and quadrangle.

Jacobsen, Clyone Lynn.

Geology of the Island area, McLean County, Kentucky: Ky. Geol. Survey Bull.

ser. 9, no. 3, 26 p., illus., 1950. A descriptive report of the stratigraphy, 

structure, petroleum production, and future possibilities of the Island

area in western Kentucky! Petroleum is produced, from five Mississippian horizons and one Pennsylvania!! horizon.

Jaffe, Howard William.

1, (and Sherwood, Alexander M.). Phosphate-allophane in an epidosite from

North Carolina: Am. Mineralogist, V. 35, nos. 1-2, p. 102-107, lllllg., 

Jan.-Feb. 1950. Gives chemical and petrographic data for phosphateallophane which replaces oligoclase in epidosite. V. S.

2. T-h.5 T<,io <>£ ytti-ium nnei other minor elements in the garnet group Cabs 1 Am. Mineralogist, v. 35, nos. 3-4, p. 284, Mar.-Apr. aaoo. 

Jaggar, Thomas Augustus. - Abrasion hardness: Hawaiian Volcano Observatory, Fifth Spec. Bpt., 43 p.,

illus., 1950. Experimental work on the testing of hardness, softness,

and. abradability of various materials and under various conditions,

carried on at the Volcanology Laboratory of the University of Hawaii,

is described. A scratch hardness tester has been designed and is described. The principle of the instrument is to scratch the smooth surface of the specimen to be tested with a sharp tool rotating at a certain 

speed, and for a definite length of time. The length of the resulting 

scratch indicates the hardness; the longer the scratch the softer the 

material.
BIBLIOGRAPHY 139

Jahns, Richard Henry. See also White, W. S.

1. (and Lancaster, Forrest W.). Physical characteristics of commercial sheet 

muscovite in the southeastern United States: U. S. Geol. Survey Prof. 

Paper 225, 110 p., illus., 1950. Results of petrographic, electrical, and 

color tests made on specimens of mica from 850 deposits in 5 southeastern states are presented together with a review of the local distribution, 

mode of occurrence, and economics of sheet muscovite. A bibliography 

is given. V. S.

2. (and Lance, John Franklin). Geology of San Dieguito pyrophyllite area, 

San Diego County, California: Calif. Dept. Nat. Res., Div. Mines Spec. 

Rpt. 4, 32 p., illus. incl. geol. maps, Nov. 1950. The geology and struc- 

. . ture of the Santiago Peak volcanics in the western part of San Diego 

County are described. Detailed petrographic, mineralogic, and chemical data are given for the pyrophyllite-bearing rocks which occur as 

altered parts of the volcanic series. The origin is discussed. Economic 

aspects of pyrophyllite production are presented.

3. (and Engel, Albert Edward John). Chaotic breccias in southern California ; tectonic or sedimentary ? [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1474, Dec. 1950.

Jakosky, John Jay.

Exploration geophysics. 2d ed., xvi, 1195 p., illus. Los Angeles, Calif., Trija 

Publishing Co. 1950. Detailed information is given in chapters covering geologic background, magnetic, gravitational, electrical, seismic, 

chemical, thermal, and radioactivity methods, bore hole investigations, 

physical principles applied to production problems, and land tenure 

and patent problems.

James, Ellen L.

New marine fauna from Coos Bay, Oregon [abs. 1: Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1539, Dec. 1950.

James, Harold Lloyd.

Current U. S. Geological Survey investigations in the iron ranges of northern 

Michigan [abs.]: Econ. Geology, v. 45, no. 4, p. 385-386, June-July 1950.

James, William Fleming.

(and others). Canadian deposits of uranium and thorium: Min. Eng.', v. 187, 

no. 2, p. 239-255, illus. incl. geol. map, Feb. 1950; A. I. M. E. Trans., v. 

187, 1950. "Contains a history of Canadian uranium and thorium discoveries, a working classification of the deposits, fairly detailed descriptions of the Eldorado mine and of properties in northern Saskatchewan, 

and shorter accounts of several other discoveries." An index map showing locations, and geologic sketch map of the Goldflelds region are 

included.

Jardetzky, W. S.

The problem of mountain chains: Am. Geophys. Union Trans., v. 31, no. 6, p. 

901-913, illus., Dec. 1950. The problem of mountain building is divided 

into three parts: (1) mechanism of formation, (2) distribution of forces 

acting in the earth's crust and producing simultaneous formation of 

ranges, and (3) the changes of these forces during geologic time. Four 

principal types of the mechanism of folding are considered and mathematical formulae given. New data on the distribution of forces and 

variation during geologic time are presented.

Jarvik, Erik.

1. Note on the Upper Devonian vertebrate fauna of East Greenland and on 

the age of the ichthyostegid stegocephalians: K. Svenska Vetenskapsakad., Arkiv Zool., Bd. 41A, H. 4, no. 13, 8 p., 1949. The occurrence 

and associations of the ichthyostegids point to a Late Devonian age. A 

useful bibliography is included. *
140 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Jarvik, Erik Continued

2. Middle Devonian vertebrates from Canning Land and Wegeners Halvo 

(East Greenland) ; Pt. 2, Crossopterygii: Meddelelser om Gr0nland, Bd. 

96, no. 4, 132 p., illus., 1950; Copenhague Univ. Mus. Miner. G6ol., 

Commun. Pal6on. no. 72, 1950. Comprehensive descriptions of O'yroptychius groerilandicus and G.I cf. groenlandicus, new species of crossopterygians from the Middle Devonian strata of Wegeners Peninsula and 

Canning Land, East Greenland. Also included are notes on some Porolepiformes remains and on the strata.

3. Note on Middle Devonian crossopterygians from the eastern part of Gauss 

Halvo, East Greenland, with an appendix, An attempt at a correlation 

of the Upper Old Red Sandstone of East Greenland with the.marine 

sequence: Meddelelser om Gr0nland, Bd. 149, no. 6, 20 p., illus., 1950; 

Copenhague Univ. Mus. Min4r. G6ol., Commun. Pale"on. no. 73, 1950. 

Describes evidence of crossopterygian remiains which establish the 

Upper Middle Devonian age of the strata. In the appendix, a correlation chart shows the relation of the Upper Old Red Sandstone in Greenland to the Upper Devonian in Belgium, Russia, and the Baltic area.

Jeffords, Russell MacGregor.

The ground-water resources of Montgomery County, New York: N. Y. Water 

Power and Control Comm. Bull. GW-23, 63 p., illus. incl. geol. map, 1950. 

The sedimentary and metamorphic rocks of Montgomery County, New 

York, range from pre-Cambrian through Recent in age. The chief waterbearing formations are Cambrian dolomite, Ordovician shales, and unconsolidated till and gravel. V. S.

Jeletzky, Jurij Alexander.

1. Actinocamax from the Upper Cretaceous of Manitoba: Canada Geol. Survey 

Bull. 15, p. 1-27, 36-41, illus., 1950. A critical review of the belemnoid 

genus AcUnocamax, including descriptions of two new varieties from 

Manitoba. The possibility of the use of belemnites as index fossils in 

correlating Canadian strata is discussed.

2. Stratigraphy of the west coast of Vancouver Island between Kyuquot Sound 

and Esperanza Inlet, British Columbia (report, map, and figure) : Canada Geol. Survey Paper 50-37, 52 p. ($), geol. map, 1950. Preliminary 

results of an investigation of the Triassic, Jurassic, Cretaceous, and 

Tertiary strata are outlined. The strata are described in some detail 

and the faunal content is given, The age and correlation are discussed. 

A correlation table with other Pacific Coast areas is included .

3. Some nomenclatorial and taxonomic problems in paleozoology: Jour. Paleontology, v. 24, no. 1, p. 19-38, illus., Jan. 1950. Multiplication of species 

and genera, provisional names, and neozoological statistical methods are

criticized in favor of infraspecific categories, phylogenetic methods and

evolutionary studies, and the latter approach is illustrated by correlation of tipper Jurassic and Cretaceous faunas on both sides of the Atlan- tic. A bibliography is appended. V. S.

Jenke, Arthur Louis.

Well temperatures in the Abilene area: Abilene Geol. Soc;, Geol. Cbntr., p.

82-87, illus., 1950. Describes the methods of measurement, the results,

ana tne significance of bottom-hole temperatures in wells in the Abilene

Texas, area. Investigations have shown that, for this area, tlie rate of

temperature increase with depth is essentially a straight line, and thus

reasonably accurate gradients can be calculated from bottom-hole meaSurements.

Jenny, Hails.

Origin of soils, in Applied sedimentation, p, 41-61, mus., 1950. The factors m

soil formation time, parent material, topography, climate, and the 

WotiC factor are diSCUSSed. The processes of soil formation, dependent 

on the application of physics, chemistry, and biology, are discussed in

that light.

Jensen, Adolf Severin. See Harder, P,
BIBLIOGRAPHY 141

Jeremine, Elisabeth.

Description pfitrographique de quelques roches du Labrador, de la Bale d'Hudson et de la baie James: Revue Trimestrielle Canadienne, v. 35, no. 140, 

p. 370-402; illus., Winter 1949-50. Petrographic descriptions of gneiss, 

amphibolite, quartzite, and chlorite schist of the Grenville series and oi 

intrusives of the Buckingham series from. Labrador and areas in the 

vicinity of Hudson Bay and Jatnes Bay.

Jerome, S. E.

Special field applications of a confirmatory test for lead: Econ. Geology, v. 45, 

no. 4, p. 358-362, June-July 1950. The potassium iodide test for rapid, 

large scale field identification of anglesite and cerussite in arkpse is 

described. A supplementary method for determining cerussite with 10 

percent sodium sulfide solution is discussed briefly. V. S.

Jewett, John Mark.

Oil prospects in eastern Kansas: World Oil, v. 130, no. 6, p. 64-66, 68, 70, illus. 

incl. geol. sketch map, May 1950. Eastern Kansas is characterized by 

Paleozoic sediments ranging from 500 to 4,800 feet in thickness. Oil 

is produced from sandstones, limestones, and dolomites of Ordovician 

to Permian age. Major structural provinces and further oil potentialities are discussed. A bibliography is given. . V. S.

Jillson, Willard Rouse.

1. American fluvial Pliocene deposits bordering the western margin of the 

Cumberland Plateau: Internat. Geol. Gong., 18th, Great Britain, Rpt. pt. 

9, p. 54 58, 1950. River sands and gravels that occur at varying levels 

between 650 and 950 feet in valleys and as terrace deposits near and 

within the western part of the Cumberland Plateau are considered to be 

of Pliocene age. Their occurrence and the history of their recognition 

are sketched. '

2. A bibliography o'f early books, pamphlets, articles and maps pertaining to the 

geology, paleontology and seismology of Kentucky, 1744-1854 (with 

annotations). 53 p. Frankfort, Ky. Roberts Printing Co. 1950.

3. First American gusher. 60 p., illus. Frankfort, Ky. Roberts Printing Co. 

1950. The first oil well in America, Stockton no. 1, discovered March 

11, 1829, in Cumberland County, Kentucky, is located on a small 

anticline in Paleozoic sediments. The local geology and history of the 

well are outlined, and a bibliography is given. V. S.

4. The geological map of the United States, a narrative outline and annotated 

bibliography (1752-1946). 23 p. Frankfort, Ky. Ro.berts Printing Co. 

1950. Brief historical notes followed by a bibliography of about 50 

items arranged chronologically.

5. Geology of Button Knob and vicinity. 60 p., illus. Frankfort, Ky. Roberts 

Printing Co. 1950. Describes the stratigraphy, structure, paleontology, 

physiography, and oil and gas potentialities of the Button Knob area, 

Casey County, central Kentucky. The area is one of faulted and folded 

Paleozoic strata ranging from Ordovician through Mississippian. Oil 

and gas have been produced from Ordovician beds.

6. Geology of the Elk Lick Valley. 33 p., illus. Frankfort, Ky. Roberts Printing Co. 1950. The valley, in Fayette County, Kentucky, known for its 

tufa deposit called "Petrified Falls," is described as to topography, 

stratigraphy, structure, upland gravels, fossil horizons, and small local 

potholes. A bibliography is given. V. S.

7. The Menifee natural gas reservoir. 33 p., illus. Frankfort, Ky. Roberts 

Printing Co. 1950. A brief discussion of the stratigraphy, structure, 

and occurrence of natural, gas in the area of the Menifee gas field in 

eastern Kentucky. An annotated bibliography is included.

Jizba, Zdenek V. See also Wood, W. H.

Retardation method for determining the orientation of uniaxial crystals [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1525-1526, Dec. 1950.

980682° 52 10
142 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Johnson, Frank Walker.

Shale density analysis, in Subsurface geologic methods, p. 329-341, illus., Colo. 

School of Mines, 1950. Discusses the determination and application of 

shale density as an indication of shale compaction and one of the criteria of formation.

Johnson, George W.

Duties and reports of a subsurface geologist, in Subsurface geologic methods, 

p. 810-855, illus., Colo. School of Mines, 1950. Discusses specific points 

to be considered in reports on various phases of oil field development 

and outlines typical reports.

Johnson, Jesse Harlan.

A Permian algal-foraminiferal consortium from west Texas: Jour. Paleontology, v. 24, no. 1, p. 61-62, illus., Jan. 1950. Describes two new species 

of Nubecularia and Girvanella, found intimately entwined as algal-ball 

deposits near Vinton, Texas. V. S.

Johnson, Joe William. See Einstein, H. A. 

Johnson, S. J. See Turnbull, W. J. 

Johnson, Wendell B. See Byrne, F. E., 3.

Johnston, Floyd T.

Relief wells for artesian sandstone, Fort Randall Dam, Missouri River, South 

Dakota [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1475, Dec. 1950.

Johnston, John Edward.

(and Heck, William Adam). The Fire Clay and Whitesburg coals in the 

Hyden quadrangle, Leslie, Clay, and Perry Counties, Kentucky: U. S. 

Geol. Survey Coal Inv. Map C5. 1950. The map shows outcrops and 

thickness of the coal beds and structure. Descriptive notes of the coal 

geology and reserves are given together with numerous coal bed sections, 

analyses, and reserve figures.

Johnston, Kenneth Howard.

(and Moot, C. W., Jr.). Petroleum engineering study of the Weber pool, 

Washington County, Okla. : U. S. Bur. Mines Rpt. Inv. 4740, 47 p. (t),

illus., Dec. 1950. Discusses the geology, development, and exploitation 

of the Weber pool, in the Bartlesville-Dewey field in northeastern Oklahoma. Structure maps, cross sections, and production data are given.

Jones, H. J. See Hughes, D. S.

Jones, Islwyn Winwaloc.

The Appalachian region: Canadian Min. Met. Bull. no. 454, p. 93-98, illus., Feb. 

1950. ^DiSCUSSion Of the Institute Jubilee Volume, Structural geology of

Canadian ore deposits, together with additional information on the

relation of structures to ore deposits in the Quebec section. 

Jones, Jack 0.

(and Peyton, Alexander ~L,.) Investigation of Furniss tungsten deposits 

CabaiTUS County, N. C. : U. S. Bur. Mines Rpt. Inv. 4724, 14 p. (t), illus.!

Sept, 1950. . Tungsten occurs in lenticular quartz veins in metamorphosed andesitic flows and tuffs near the contact with a quartz diorite

intrusive. The ore mineral is scheelite, Chaicopyrite and native gold

are associated minerals.

Jones, Paul Hastings,

(and Buford, Thomas Bernard). The application of electric logging tO ground-water exploration [abs.]: Geophysics, v. is, no. i, P. ±52, Jan.

1950.
BIBLIOGRAPHY 143

Jones, Stewart McReddie.

Geology of Gatun Lake and vicinity, Panama: Geol. Soc. Am. Bull., v. 61, no. 

9, p. 893-921, illus. incl. geol. map, Sept. 1950. The Tertiary stratigraphy 

and structure in the northern half of the central Panama Isthmus 

are described, and the formations are correlated with those of adjacent 

localities! The fracture pattern of the area upholds the view that the 

Panama Isthmus ridge is a wide upwarp between the Caribbean and 

Ecuador seas, possibly dating from Late Cretaceous orogeny. The 

geologic history of the area__is outlined.

Jones, Suzanne L. See Dennis, P. E.", 1, 2. 

Jones, Waldo H.

1. Topaz locality, old Brewer mine: Mineralogist, v. 18, no. 2, p. 66-67, Feb. 

1950. Notes the occurrence of topaz in quartz sericite schist at the 

Brewer mine, near Jefferson, South Carolina. V. S.

2. New fossil grounds: Mineralogist, v. 18, nos. 7-8, p. 377, July-Aug. 1950. 

Reports a recently made exposure at Cherry Grove Inlet, South Carolina, where specimens of Pliocene and Peistocene age may be collected.

Jones, Walter Bryan.

1. Oil and gas progress and prospects in Alabama: World Oil, v. 131, no. 1, 

p. 57, 60, 62, 64, illus., July 1, 1950. Oil and gas production and prospects in Alabama are reviewed. Seven districts are. distinguished, the 

most promising areas being located in the southwestern and northwestern parts of the state. V. S.

2. Possible oil-bearing horizons in Alabama: Oil, v. 10, no. 10, p. 11-12, illus., 

Dec. 1950. Eight regions are differentiated according to the potential 

oil possibilities. The characteristics of each region are discussed. The 

southwestern and northwestern parts of the state are the most promising.

Jordan, George F.

Memorial to Harold Watson Murray [1906-1948] : Geol. Soc. Am. Proc. 1949, 

p. 209-210, port., June 1950'.

Jordan, Louise. See Applin, B. E. R., 2.

Jordan, Richard H.

An interpretation of Floridian karst: Jour. Geology, v. 58, no. 3, p. 261-268, 

illus., May 1950. The highly developed artesian system of peninsular 

"Florida, extending to depths of several thousand feet, is described and 

explained by the high permeability and great thickness of limestones. 

Formation of caverns, sinks, and springs is discussed. V. S.

Jorgensen, Neil.

Some mines of Oxford County, Maine: Bocks and Minerals, v. 25, nos. 3-4, 

p. 158-159, illus., Mar.-Apr. 1950. Reports briefly on mineral collecting in the pegmatite area of the Mt. Mica, Bennett, Bessey, and smaller 

quarries near Paris, Maine. V. S.

Juan, Vei Chow.

The system CaSiO3-Ca2Al2Si07-NaAlSiO4: Jour. Geology, v. 58, no. 1, p. 1-15, 

illus., Jan. 1950. The thermal-equilibrium relationships in the system 

have been investigated by the quenching method. The data are tabulated and presented in equilibrium diagrams, and their bearing on 

related systems of the soda-lime-alumina-silica tetrahedron and petrologic significance are discussed. V. S.

Judd, William R.

Loess as a foundation material [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1554, Dec. 1950.

Judson, S. Sheldon, Jr.

Depressions of the northern portion of the southern High Plains of eastern 

New Mexico: Geol. Soc. Am. Bull., v. 61, no. 3, p. 253-274, illus., Mar. 

1950. The shallow depressions in the Pliocene Ogallala sandstone are 

the result of alternate periods of leaching and wind deflation and not 

of subsidence or collapse. The process is discussed in relation to 

climate. V. S.
144 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Just, Theodor Karl.

Mesozoic plant microfossils and their geological significance [abs.] : Oil and 

Gas Jour., v. 48, no. 51, p. 178, Apr. 27, 1950.

Kaiser, Charles Philip.

Stratigraphy of Lower Mississippian rocks in southwestern Missouri: Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 11, p. 2133-2175, illus., Nov. 1950. 

Eleven Lower Mississippian formations outcropping in southwestern 

Missouri are described with respect to lithology, distribution, and age. 

The formations are correlated with sections in Arkansas and Oklahoma. 

Detailed sections are given, and a bibliography is included. Changes 

in nomenclature are made.

Kaiser, Edward Peck.

1. Mining geology, a science: Econ. Geology, v. 45, no. 5, p. 482-485, Aug. 1950. 

Mining geology is considered to be a field of science with ample opportunity for research, rather than a branch of engineering which makes 

use of geological principles and procedures. V. S.

2. Structural significance of lineaments [abs.]: Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1475-1476, Dec. 1950.

Kalliokoski, Jorma O. K.

Second preliminary map, Weldon Bay, Manitoba (map and descriptive notes) : 

Canada Geol. Survey Paper 50-5, 15 p. ($), geol. map, 1950. Weldon 

Bay, western Manitoba, is an area of pre-Cambrian gneisses and intrusives. The rocks and structural relations, including those in neighboring areas, are mapped and described briefly, with attention to economic possibilities. V. S.

Kapner, Harvey Herbert.

(and Hollingsworth, Richard Vincen, and Williams, Harold L.). Fusulinid 

chart for Pennsylvanian correlations in mid-Continent area [abs.]: 

Am. Assoc. Petrol. Geol. Bull., v. 34, no. 3, p. 621, Mar. 1950.

Kaser, Paul.

Ground-water levels in Ohio, 1948; Ohio Water Res. Bd. Bull. 21, 60 p., liius., 

July 1950. Ground water in Ohio is discussed by county.

Kauffman, Albert John, Jr,

1. (and Dilling, E. Don). Differential thermal curves of certain hydrous

and anhydrous minerals, with a description of the apparatus used :

Econ. Geology, v. 45, no. 3, p. 222-244, illus., May 1950. One hundred and three differential thermal cury.es, many of them new, are given

for various clays, hydrous oxides, carbonates, silicates, sulfates, phosphates, volcanic glasses, and miscellaneous minerals. Details of the 

apparatus used, including an electronic recording potentiometer, are

outlined. V. S.

2. (and MOItimore, D. M., and Hess, Harold D.). A study of certain uncommon minerals found in the Pacific Northwest: U. S. Bur. Mines

Rpt. Inv. 4721, 22 p. (t), Sept. 105O. Optical, X-ray, and spectrographic 

data are given for allanite, native antimony, boulangerite, chromium

mica, geocronite, glaucodot, kotschubeite, manganophyllite, plumbojarosite, pseudornalachite, and pyromorphite. A list of references is

given lor eacn mineral,

Kaufxnunn, JOale \V- (and Slawson, Chester Bafcer), Ripple mars m rock salt or tne sauna formation: Jour. Geology, v. 58, no. 1, p. 24-29, illug., Jan. 1050. Extensive

series of ripple mark at various horizons have been observed in Silurian 

rock salt of the Salina formation, Michigan, and anhydrite lamellae

which show similar ripple mark have been noted in the clear salt mass.

These are the first such observations on a large scale, Y. S.
BIBLIOGRAPHY 145

Kaufmann, Godfrey F.

Modern methods in petroleum exploration, in Applied geology, a symposium: 

Cplo. School of Mines Quart, v. 45, no. IB, p. 39-74, illus., Jan. 1950. 

Discusses geologic and geophysical techniques for both surface and subsurface exploration. A section is included on the importance of the 

study of sedimentary basins and geosynclines. both of which are fundamentally connected with petroleum exploration. Discussion by T. H. 

Allan, J. T. Rouse, and A. S. Bunte is appended.

Kay, George Marshall.

Ordovician Canadian-Chazyan relations in Vermont [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1476, Dec. 1950.

Kaye, Clifford Alan.

Principles of soil mechanics as viewed by a geologist, in Applied sedimentation, 

p. 93-112, illus., 1950. Among the points covered are principles of soil 

mechanics, sampling and testing techniques, Atterberg limits, slope-stability analysis, consolidation, and the role of geology in soil mechanics.

Keen, Angeline Myra. See Schenck, H. G. 

Keenmon, Kendall A. See Hibbard, C. W., 3.

Keevil, Norman Bell. See also Larsen, E. S., Jr., 2.

Radioactivity and mineral deposits: Am Mineralogist, y. 35, nos. 9-10, p. 816- 

833, illus., Sept.-Oct. 1950 The helium and lead methods of calculating 

geologic age are discussed and compared. The distribution of radioactivity around "non-radioactive" ore deposits (Ontario; Franklin, 

New Jersey; Oilman, Colorado) and around radioactive ore bodies 

(Great Bear Lake) is described. The detection of hidden radioactive 

deposits is discussed.

Kehrlein, Oliver.

Death comes to a glacier: Pacific Discovery, v. 3, no. 3, p. 8-18, illus., May-June 

1950. Describes the last, small remnants of a glacier on the north slope 

of Mt. Pickering, at the southern end of the Sierras in California.

Keith, Mackenzie Lawrence. See also Yoder, H. S., Jr., 4.

(and Tuttle, Orville Frank). Geological significance of variations in the highlow inversion of quartz [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1476, Dec. 1950.

Keller, Walter David. See also Muilenberg, G. A

1. (and Pickett, E. E.). The absorption of infrared radiation by clay minerals : 

Am. Jour. Sci., v. 248, no. 4, p. 264-273, illus., Apr. 1950; abs., Geol. Soc. 

Am. Bull., v. 59, no. 12. pt. 2, p. 1332, Dec. 1948; Am. Mineralogist, v. 

34, nos. 3-4, p. 278, Mar.-Apr. 1949. "Infrared absorption spectrograms 

by pulverized minerals of the kaolin, montmorillonite, and illite groups 

in the 2 to 15 micron wave length bands are shown. The kaolin 

minerals have a distinctive absorption but those from the other groups 

are less clearly defined. Spectrograms of gibbsite, brucite, quartz, opal, 

and muscovite are shown because of their structural relationships to the 

clay minerals."

2. (and Littlefield, Romaine F.). Inclusions in the quartz of igneous and 

metamorphic rocks: Jour. Sed. Petrology, v. 20, no. 2, p. 74-84, illus., 

June 1950. Thin-section study of inclusions in 51 specimens of igneous 

and metamorphic quartz showed that "regular inclusions characterize the 

quartz of schists, irregular inclusions predominate in igneous quartz, and 

globular and acicular inclusions are most abundant in igneous quartz 

although they also occur in metamorphic quartz." Spectrographic 

analyses indicate that petrogenic quartz probably includes abundant, 

sub-microscopically fine particles of ordinary rock-forming minerals.

V. S.

3. (and Pickett, E. E.). Method of preparation of clay samples for measurement of infrared absorption, in Infrared spectra of reference clay minerals: Am. Petrol. Inst. Project 49, Clay Mineral Standards, Prelim. 

Rpt. 8, p. 123-139, July 1950.
146 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Keller, Walter David Continued

4. (and Klemme, Arnold W-, and Pickett, E. B.). Detailed survey of the chemical composition of rock layers in an agricultural limestone quarry: 

Econ. Geology, v. 45, no. 5, p. 461-469, illus., Aug. 1950. Chemical and 

spectrographic tests of dolomite quarried from the Jefferson City formation, near Marshfield, southwestern Missouri, showed Ca and Mg as 

major constituents, and Mn, Cu, B, Cr, Sr, Ba, Ni, Ag, and V as trace 

elements. It is concluded that Ca, Mg, and trace element content are 

more useful than CaCO3 equivalent in classifying agricultural limestone or "agstone" for industrial use.

5. (and Ting, Chuen Pu). The petrology of a specimen of the Perry Farm 

shale: Jour. Sed. Petrology, v. 20, no. 3, p. 123-132, illus., Sept. 1950. A 

petrologic description of a shale specimen from the Perry Farm member 

of the Lenapah formation of Pennsylvanian age collected in Ray County, 

Missouri. The specimen is a calcareous, micaceous sandy shale with 

lamination due to parallel orientation of platy minerals. The origin 

is discussed.

6. (and Pickett, E. E.). Hydroxyl in minerals tabs.]: Am, Mineralogist, v. 

35, nos. 3^, p. 284, Mar.-Apr. 1950.

Kelley, Vincent Cooper.

1. Introduction, in Guidebook of the San Juan Basin, New Mexico and 

Colorado, p. 9-11, 1950. Brief, general notes on the setting and geology 

of the San Juan Basin.

2. Pre-Cambrian rocks of the San Juan Basin, in Guidebook of the San Juan 

Basin, New Mexico and Colorado, p. 53-55, illus., 1950. Brief notes and 

an outcrop map of the pre-Cambrian rocks, together with selected 

references.

3. Regional structure of the San Juan Basin,- in Guidebook of the San Juan 

Basin, New Mexico and Colorado, p. 101-108, illus., 1950. The structural 

boundaries, major structural elements, and tectonic evolution of the San 

Juan Basin are described and discussed.

4. Oolitic iron ores of New Mexico [abs.]: Geol. Soc. Am. Bull., v. 61, no 12, 

pt. 2, p. 1554-1555, Dec. 1950.

Kellogg, Frederic Hartwell.

Rate of depletion of water-bearing sands: Miss. Geol. Survey Bull. 70, 15 p.,

illus., 1950. Mathematical considerations are given to show that 

methods. of estimating rates of depletion of sand aquifers should be 

based on two-phase steady state flow, instead of on unsteady state

flow, as is currently practiced, y g

Kelly, Hal J.

Refractory materials of the Pacific Northwest: Raw Materials Survey, Resource Rpt. 3, 15 p. ($), maps, June 1948. Deposits of clay, silica,

chromite, magnesite, olivine, sillimanite, and zircon in Washington.

Oregon, Idaho, and Montana are described briefly and discussed as to 

refractory properties and economics. V. S.

Kelly, Sherwin Pinch.

1. Geophysics, progress and prospects: Min. Eng., v. 187, no. 1, p. 63-67, illus.,

Jan. 1950. A review of geophysical activity during 1949 in the United 

States and Canada, and of developments in techniques find instruments.

2. The rise of geophysics: Canadian Min. Jour., v. 71, no. 7, p. 47-53, illUS.,

July 1950. An historical account of the development of the science of

geophysics and the various exploratory methods and techniques.

Kennedy, George Clayton.

1 preSHHi-o-^olnme-tempernture relations in Water at

and pressures: Am. Jour. Sci,, v, 248, no. 8, p. 540-564, illus., Aug. 1950.

"Development of new high-temperature alloys has made possible precise

measurements of P-v-T relations for water over a considerable pressure

and temperature range. Much of the existing published data on P-V-T 

relationships at supercritical pressures and temperatures is in considerable error and new values at temperatures up to 1000° C. and pressures up to 2500 bars are herein presented."
BIBLIOGRAPHY 147

Kennedy, George Clayton Continued

2. "Pneumatolysis" and the liquid inclusion method of geologic thermometry: 

Econ. Geology, v. 45, no. 6, p. 533-547, illus., Sept.-Oct. 1950. Discussion 

by F. G. Smith, P. A. Peach, H. S. Scott, A. D. Mutch, G. D. Springer, 

R. W. Boyle, and W. M. M. Ogden, p. 582-587. The use of liquid inclusions in the determination of geologic temperatures and recent work 

are scrutinized and discussed. The basic assumption, that the enclosed 

liquid cannot move in or out, is challenged by experimental evidence 

indicating movement along lineage boundaries. Corrections for pressure are evaluated and new pressure correction curves are presented.

3. A portion of the system silica-water: Econ. Geology, v. 45, no. 7, p. 629-653, 

illus., Nov. 1950. Presents the results of experimental work on the 

solubility of quartz in water at temperatures up to 560 C and pressures up to 1000 bars. The apparatus and procedures are described. 

The application of the results to geological problems is discussed.

Kent, Deane F.

Techniques used in mine-water problems of east Tennessee zinc district: U.'S. 

Geol. Survey Circ. 71, 9 p. ($), illus., Feb. 1950. Tests made of methods 

for tracing ground water in cavernous limestone and dolomite terrain 

showed fluorescein dyeing and comparative-flow techniques to be the 

most effective and rapid means for determining sources and routes of 

travel. V. S.

Keplinger, Charles Henry.

(and Wanenmacher, Joseph Melching). The new reef fields of Texas: World 

Oil, v. 131, no. 4, p. 181-184, 186, 188, illus., Sept. 1950. The limestone 

reefs of western Texas occur in the shaly Strawn and Canyon sections 

of the Pennsylvanian series. Data on oil accumulation, porosity, permeability, and reserves are considered. V: S.

Kepper, Jack.

A new mineral locality in Baltimore, Md.: Rocks and Minerals, v. 25, nos. 7-8, 

p. 374-376, illus., July-Aug. 1950. Describes zeolites and other crystals 

from the Powder Mill and Old Tower shafts sunk through gabbro and 

pegmatite in Baltimore, Maryland. Twenty-five minerals are listed.

V. S.

Kerfoot, W. K.

Weinert field, Haskell County, Texas: Abilene Geol. Soc., Geol. Contr., p. 88-89, 

illus., 1950. Brief notes on the discovery, history, and structure.

Kerr, A. J.

Determination of porosity of the Palo Pinto reef by radioactivity logging: 

Abilene Geol. Soc., Geol. Contr., p. 39-46, illus., 1950.. The technique of 

utilizing radioactivity logs to determine porosity quantitatively is reviewed and applied to the Palo Pinto reef of basal Canyon age (Pennsylvanian). Porosity is calculated for the Huddleston A-12 well, 

Eskota field, Texas, and on the basis of the neutron derived porosity 

curve, the porosity is given for the Pike Hall No. 3 well in the same 

field.

Kerr, Lillian B. See Allan, J. D., 2.

Kerr, Paul Francis. See also Davis, D. W.; Graf, D. L., 2. 

1. Discussion of alteration and its application to ore search, in Applied 

geology, a symposium: Colo. School of Mines Quart., v. 45, no. IB, 

p. 328-336, Jan. 1950. Outlines several problems connected with alteration, such as the time relations of mineralization and wall-rock alteration, the geochemistry of sericitic alteration, and the effect of weathering or supergene action on alteration products, with reference to 

observations at Santa Rita, New. Mexico, and Silver Bell, Arizona.
148. ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Kerr, Paul Francis Continued

2. (and others). Hydrothennal alteration at Santa Rita, New Mexico: 

Geol. Soc. Am. Bull., v. 61, no, 4, p. 275-347, illus. incl. geol. maps, 

Apr. 1950. "The intrusives at Santa Rita and near-by Hanover differ 

widely in the extent of hydrothermal alteration. The Santa Rita intrusive is in many places highly kaolinized, sericitized, and silicified. 

The Hanover instrusive is to a large degree unaltered .... four stages 

of alteration in the Santa Rita intrusive have been selected . . ." 

Comparison of ore distribution with alteration indicates that the highest copper concentration in general is related to argillic alteration. 

The study shows the utility of applying zones of alteration in field 

mapping to outline areas of greater and lesser mineralization promise.

V. S.

3. (.and Main, Margaret S., and Hamilton, Peggy-Kay). Occurrence and 

microscopic examination of reference clay mineral specimens, Pt. 1, 

' Occurrence: Am. Petrol. Inst. Project 49, Clay Mineral Standards, 

Prelim. Rpt. 5, p. 1-14, Apr. 1950.

4. (and Hamilton, Peggy-Kay, and Phil, R. J.). X-ray diffraction measurements and chemical analyses, in Analytical data on reference clay 

minerals: Am. Petrol. Inst. Project 49, Clay Mineral Standards, Prelim. Rpt. 7, p. 1-58, July 1950.

5. (and Adler, Hans H.). Summary, in Infrared spectra of reference clay 

minerals: Am. Petrol. Inst. Project 49, Clay Mineral Standards, Pre- 

. llm. Rpt. 8, p. 143-146, July 1950.

Kesler, Thomas Lingle.

1. Barite deposits southeast of the Appalachian plateaus, in Snyder, F. G., ed., 

Symposium on mineral resources of the southeastern United States, p. 

88-98, illus., 1950. Summarizes the geology and discusses the age and 

origin of the barite deposits in the southeastern United States, with 

particular reference to the Cartersville district in Georgia, the Sweetwater district in Tennessee, and the Del Rio-Hot Springs district in 

North Carolina.

2. Geology and mineral deposits of the Cartersville district, Georgia: U. S. 

Geol. Survey Prof. Paper 224, 97 p., illus. incl. geol. maps, 1950. The 

Cartersville mining district, 40 miles northwest of Atlanta, is characterized by Cambrian metasedirnents and gneisses. The formations, structures, rock alteration, and erosional history are described. Secondary 

deposits of barite, manganese, brown iron ore, ocher, and umber occur, 

of which the principal mines are described. A bibliography is given.

V. S. 

Kesten, S. Norman. See also James, W. F.

Radioactive occurrences, Sault Ste. Marie area, and Some considerations affecting exploration practice: Canadian Min. Jour., v. 71, no. 8, p. 46-^53,

illus., Aug. 1950. The pitchblende deposits at Theano Point and nearby

localities in the Sault Ste. Marie area, Ontario, are classified into 

syngenetic and hydrothermal deposits, and their occurrence and origin 

are discussed. General exploration methods and additional, locally effective techniques are indicated. V. S.

Ketner, K. See Emmoris, It. O. 

Kiersch, George A.

1. Small-scale structures and otner features of Navajo sandstone, northern

part of San Rafael Swell, Utah : Am. Assoc. Petrol. Geol. Bull., V. 34, no.

0, p. 823 942, illUS., May 195O. Cl-oss-Uiiriliiatlon x>ucc«2x-»a, i-ij>jiie mni-tes,

intraformational deformation zones and other features are described

and analyzed. Concludes that although the dominant manner of deposition of the Navajo sand was by southerly winds, sliort periods or aqueous

deposition were common during accumulation of the lower Section Of the formation. A detailed columnar section ana statistical data on the 

cross-laminae are given.

2. Geological investigations and problems; Folsom Dam project, California

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1526, Dec. 1950.
BIBLIOGRAPHY 149

Kiilsgaard, Thor H.

1. Descriptions of some ore deposits and their relationships to the Purcell 

sills, Boundary County, Idaho: Idaho Bur. Mines and Geology Pamph. 

no. 85, 32 p. ($), illus. incl. geol. maps, Jan. 1949. Discusses the origin 

of the ores, chiefly lead-zinc, which occur in the Purcell Mtn. Range in 

northern Idaho. The mineralization follows fractures which are located 

near the contact of igneous sills and metamorphosed sediments and 

which resulted from Tertiary deformation. Several properties in the 

area are described and geologic maps are shown.

2. The geology and ore deposits of the Boulder Creek mining district, Custer 

County, Idaho: Idaho Bur. Mines and Geology Pamph. no. 88, 28 p. ($), 

illus. incl. geol. maps, Apr. 1949. The silver-lead deposits.in the Boulder 

Creek district, central Idaho, are described. The chief ore mineral is 

jamesonite, and the ores occur partly as fissure fillings and partly as 

replacement deposits. Ores and mineralization at the Livingston mine 

are described in detail. Notes on other properties are included.

3. The geology and ore deposits of the Triumph-Parker mine mineral belt, in 

Detailed geology of certain areas in the Mineral Hill and Warm Springs 

mining districts, Blaine County, Idaho: Idaho Bur. Mines and Geology 

Pamph. 90, p. 39-62, illus. incl. geol. maps, Oct. 1950. Describes the 

stratigraphy, structure, and mineralization of the Triumph-Parker mine 

region in southern Idaho. The ores are sulfides with lead, zinc, silver, 

and gold content, and occur both as fissure fillings and replacement deposits. The mines and prospects are described.

Kilkenny, John Edward.

San Joaquin Valley [Calif.], in Symposium on possible future oil provinces of 

the Pacific Coast region [abs.] : Am. Assoc. Petrol. Geol. Bull., v. 34, no. 

12, p. 2383, Dec. 1950.

Kimball, Kent K.

Memorial, Burton Armand Lilienborg (1900-1949) : Tulsa Geol. Soc. Digest, v. 

18, p. 88-89, 1950.

Kimble, George H. T.

(and Sinclair, Martin H.). The occurrence of uranium: Nucleonics, v. 6, no. 

4, p. 48-51, map, Apr. 1950. A brief, general statement of the occurrence of uranium minerals and their geographic distribution.

Kindle, Edward Darwin. See also McLearn, F. H.

Dezadeash map-area, Yukon (report and map) : Canada Geol. Survey Paper 

49-24, 33 p. ($), geol. map, 1949. Local formations range from preCambrian to Recent, but are mostly Jurassic and Cretaceous intrusives 

and sedimentary rocks. The rocks, structure, and mineral prospects are 

described. V. S.

King, L. H. See Cameron, J. R., 1. 

King, Myrle E. See Mielenz, R. C.

King, Philip Burke.

1. (and Stupka, Arthur). The Great Smoky Mountains; their geology and 

natural history: U. S. Geol. Survey Topog. Map, Great Smoky Mountains National Park and vicinity, Tennessee and North Carolina. Scale 

1 inch to 2 miles. 1950. An account of the geologic history of the area, 

illustrated by cross sections and sketches, and a description of the trees 

and plant life, are printed on the reverse side of the map.

2. (and Stupka, Arthur). The Great Smoky Mountains; their geology and 

natural history: Sci. Monthly, v. 71, no. 1, p. 31-43, illus., July 1950. 

The geologic history of the Great Smoky Mtn. area in western North 

Carolina and eastern Tennessee is presented in popular form, accompanied by cross sections and sketches. The trees and plant life are 

described.
150 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

King, Philip Burke Continued

3. Tectonic framework of southeastern United States: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 4, p. 635-671, illus. incl. geol. maps, Apr. 1950; reprinted 

in condensed form in Snyder, F. G., ed., Symposium on mineral resources 

of the southeastern United States, p. 9-25, illus., 1950. The mountain 

system formed during Paleozoic time and now represented by the Appalachian, Ouachita, and related groups, is described as to the structures of its component parts and their relations and deformations 

through time. Emphasis is placed on recent drilling and its interpretations. A bibliography is given.

King, William Homer.

(and Allsmian, Paul Trekell). Reconnaissance of metal mining in the 

San Juan region, Ouray, San Juan, and San Miguel Counties, Colo.: 

U. S. Bur. Mines Inf. Circ. 7554,109 p. ($), illus., Mar. 1950. Describes 

the mineral deposits, mining and milling methods, and operating conditions in the gold, silver, lead, and zinc producing area extending from 

Ouray to Silverton and from Ophir to the San Juan-Hinsdale County line.

V. S.

Kingman, Owen.

Geochemical prospecting at Tennessee Copper [Ducktown, Tenn.] [abs..]: Min. 

Cong. Jour., v. 36, no. 10, p. 77-78, Oct. 1950.

Kinney, Douglas Merrill. See U. S. G. S., 2.

Kinsolving, May Risch.

(and MacGillavry, Caroline H., and Pepinsky, Ray). Twinning in nesquehonite, MgC03.3H2O [abs.]: Am. Mineralogist, v. 35, nos. 1-2, p. 127, 

Jan.-Feb. 1950.

Kirk, Mahlon V.. See Durham, J. W., 4.

Kirkpatrick, Alan Fred.

The frequency-distribution of the optical properties of crystals [abs.]: Am. 

Mineralogist, v. 35, nos. 1-2, p. 129, Jan.-Feb. 1950.

Kisslinger, Carl.

Velocity of longitudinal waves in some Paleozoic formations in the vicinity of 

St, Louis, Missouri: Am. Geophys. Union Trans., v. 31, no. 2, pt. 1, p. 169-

173, illus., Apr. 1950. Velocities were determined in five sedimentary 

formations, including the Kimmswick limestone and Joachim dolomite. 

The possibility that the magnesium carbonate content of a carbonate

rock is a dominant factor, controlling the velocity of elastic waves

through it, is suggested. V. jgt

Kjellesvig-Waering, Erik N.

1. A new Silurian Huglimilleria, from West Virginia : Jour. Paleontology V 24 

110. 2, P. 226-228, illllS., Mar. 1950. A new eurypterld, HuyJimUleria

bettistriata, is described from the Silurian Wills Creek formation of

Hardy County, West Virginia, and a complete list of described species of

the genus is included. v. s.

2. A new Silurian eurypterid from Florida: Jour. Paleontology, v. 24, no. 2,

p. ^9-231, M.ar. XOOO. x>o«^ibo« ,,«w eutryrvterid STjecieS. PterVQOtUS UondWHMS) in Silurian shale from a wen core, suwannee county, 

Florida. V. S,

Klaer, Fred Harlen, Jr. See also Stallman, R. W.

orouwci-x^^ter- levels in Indiana: Ind. Acacl. Sci. Proc., v. 59, p. 236-245, illUS., 

1900. General comments on grouua-wauev i-esox^-oes ajKi fiuot^.xtious o£

water-levels in Indiana. Present indications SHOW an adequate supply

g£ ground water.
BIBLIOGRAPHY 151

Klein, Howard.

(and Baker, Roger Crane, and Billingsley, Granville Alton). Ground-water 

resources of Jefferson County, Arkansas: Ark. Univ., Inst. Science and 

Technology, Research Ser. no. 19, 44 p., illus., June 1950. Contains 

information on the stratigraphy of the Tertiary and Quaternary strata, 

the occurrence of the ground water, and chemical composition of the 

water.

Klemme, Arnold W. See Keller, W. D., 4.

Klepper, Montis Ruhl.

A geologic reconnaissance of parts of Beaverhead and Madison Counties, Montana : U. S. Geol. Survey Bull. 969-C, p. 55-85, geol. map, 1950. The 

area covered by the reconnaissance is in southwestern Montana, between 

the Ruby River and the Red Rock River. Strata ranging in age from 

pre-Cambrian to Cretaceous, igneous intrusives, and Tertiary volcanics 

are described, and the structure is outlined. Notes on the economic 

geology of the area are included.

Klinger, Edgar I>.

The Diamond M reef of Scurry County, Texas: World Petroleum, v. 21, no. 

4, p. 36-39, illus., Apr. 1950. The development of the Diamond M oil 

field in the Canyon reef limestone of Pennsylvanian age, Scurry County, 

Texas, is outlined, with a brief description of the producing strata and 

local structures. V. S.

Knauss, J. A. See LaFond, E. C. 

Knechtel, Maxwell McMichael.

1. Geology and coal and. natural gas resources of northern Le Flore County, 

Oklahoma: Okla. Geol. Survey Bull. 68, 76 p., illus. incl. geol. map, 1949. 

Bedrock in northern Le Flore County, in the Arkansas Valley, consists 

of sandstones and shales of Pennsylvanian age, which have been compressed into east trending folds. The stratigraphy, structure, coal beds, 

and gas fields are described. V. S.

2. Trap-door domes of Little Rocky Mountains, Montana [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2 ,p. 1477, Dec. 1950.

3. (and Patterson, Sam H., Jr.). Cretaceous bentonite beds of Missouri 

River Basin as sources of drilling and foundry clay [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1478, Dec. 1950.

Knight, Samuel Howell.

Physical aspects of the Green River Basin and adjacent mountain ranges: 

Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, p. 75-80, 1950. 

Describes the physical features enclosing the Green River Basin, southwestern Wyoming the Wind River Mts., Gros Ventre Mts., Hoback and 

Wyoming Ranges, and the Uinta Mts. Geomorphic characteristics, particularly the several erosion surfaces, are discussed.

KniZek, Jan O.

(and Fetter, Hans). .The refractory properties of alunite: I. High-alumina 

refractories and the genesis, occurrence and uses of alunite; British 

Ceramic Soc. Trans., v. 49, no. 5, p. 202-223, illus., May 1950. Alunite 

from four Mexican deposits is described in some detail, including chemical analyses and thermal analysis curves.

Knopf, Adolph.

1. The geologic records of time, in Time and its mysteries, p. 33-59, New York 

University Press, New York, 1949. A lecture given at New York University, April 16, 1941, in which various, methods of determining geologic time, such as radioactivity of rocks, varved sediments, and others, 

are discussed.
152 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Knopf, Adolph Continued

2. The Marysville granodiorite stock, Montana : Am. Mineralogist, v. 35, nos. 

9-10, p. 834-844, geol. sk. map, Sept.-Oct. 1950. Discusses the origin 

of the Marysville stock, one of several surrounding the Boulder batholith, near Helena, Montana. It is concluded that the stock is an outlier 

of the batholith, probably a cupola, and that by its position it acted 

as a structural control in the location of the gold veins which are geographically associated. The gold veins are later and were probably 

formed in connection with dacite extrusions or rhyolite eruptions, both 

of which are gold-bearing.

Knowlton, Charles S.

A new pink garnet locality : Mineralogist, v. 18, nos. 7-8, p. 362, 364, 366, JulyAug. 1950. A popular account of the occurrence of pink garnets near 

Lake Jaco, southern Chihuahua, northern Mexico.

Koch, Lauge.

Report on the expeditions to central East Greenland 1926-1939 conducted 

by Lauge Koch ; Pt. 1, Notes on some topographical and geological maps 

of East Greenland : Meddelelser om Gr0nland, Bind 143, no. 1, 11 p., 

geol. and topog. maps, 1950. Two topographic maps of East Greenland, 

and five geologic maps, covering areas between 71°-75° N. lat. and 

20°-24° W. long., are published in advance of the areal reports. The 

geologic maps are colored and on a scale of 1 : 250,000.

Kohn, Jack A. See also Ramsdell, L. S., 2 ; Slawson, 0. B., 2. 

Observations on the Slijper diamond : Gems and Gemology, v. 6, no. 11, 

p. 347-348, illus., Fall 1950. The Slijper diamond consists of a large 

octahedron enclosing a second octahedron having good outlines. The 

investigation to determine whether the two 'crystals were related by 

means of twinning resulted in the conclusion that the mutual orientation is one of random overgrowth.

Kornfeld, Joseph Alton.

Ringwood, Elk City focus attention on Anadarko geosyncline: World Petroleum, v. 21, no. 6, p. 34-39, illus., June 1950. Describes the exploration 

and development in the Elk City field in southwestern Oklahoma and 

in the Ringwood field in northwestern Oklahoma. Stratigraphic and

structural data on the Anadarko Basin are discussed.

Kosanke, Robert M.

1. Pennsylvanian spores of Illinois and their use in correlation: in. state 

Geol. Survey Bull. 74, 128 p., illus., 1950. Describes 5 new genera and

100 new species of small spores from Illinois coal beds. These forms, together with previously described ones, have been studied with a view

to their usefulness in correlating the coal beds. Many of the species 

are restricted, or have significant ranges, so that correlations have been

made. Studies of the Caseyville, Tradewater, Carhondaie, and McLeansboro groups are discussed, and the results are given.

2. NOteS On the Psaronn Of the Eastern Interior Basin [abs.] : Am. Jour. 

Botany, v. 37, no. 8, p. 673, Oct. 1950.

3. Peonsylvaninn plant mierofossils find paleoeCOlOgy [abS.l I Geol. SoC. Am. 

Bull., Y. 61, 110. 12, pt. 2, p. 1478, Dec. 195O.

Koschmann, Albert Herbert.

1. (and GrOl'dOn, Mackenzie, Jr.). GeOlOgy and mineral resources of the

Maim6n-Hatiilo district, Dominican Republic : U. S. Geol. Survey Bull.

9O4 1>, p. SOT 3O9, lllua. inei. e«°i- ma.p, a or;o T?rie Ci-<?t«<:-<T>rtns «t.j-nta and Tertiary intrusives ana voicamcs, fainting and f owing, and geologic history are described. Iron and nickel deposits, which Rl'6 fairly

and may be Of Commercial value, are described in detail.

Minor deposits of cobalt and copper are mentioned.

2. [DlSCUSSiOn Of alteration and its application to ore search], in Applied

' geology, a symposium : Colo. School of MmS Qll8.ft., I 4/5, HO. W, ]), W?T 

283, Jan. 1950.

3. Origin of some Colorado Precambrian granites by fusion of sediments 

tabs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1555, Dec. 1950.
BIBLIOGRAPHY 153

Kottlowski, Frank Edward. See also Wier, C. B., 3.

1. A new species of Atrypa from the Devonian of Montana: Ind. Acad. Sci.

Proc., v. 59, p. 246-250, illus., 1950. Atrypa, multicostellata, a new

^ species of brachiopod occurring in Devonian limestones in Montana

and Wyoming, is described, figured, and. differentiated from Atrypa

missouriensis.

2. (and Waters, Kenneth Harold). Regional structure of Indiana: Compass, 

v. 27, no. 4, p. 236-238, illus. incl. geol. sketch map, May 1950. Brief 

remarks on the Cincinnati Arch and related regional structure in Indiana, with a sketch map of the distribution of Paleozoic formations and 

a columnar section of the Ordovician in the southeast. V. S.

Koulomzine, Theodore. See also Geoffroy, P. R.

Why hasn't geophysics been applied more intensively to the mining industry 

in the past and what should be done about it in the future? [abs.]: 

Econ. Geology, v. 45, no. 4, p. 389, June-July 1950.

Kranck, Ernst Hakan.

Bedrock geology, in Baffin Island expedition, 1950, a preliminary report:

Arctic, v. 3, no. 3, p. 138-139, Dec. 1950. The mietamorphic rocks which

0 comprise the bedrock in the vicinity of Clyde Inlet, Gibbs Fiord, Eglinton Fiord, Sam Ford Fiord, and McBeth Fiord, are very briefly

described.

Krausel, Richard.

(and AVeyland, Hermann). G-ilboaphyton und die Protolepidophytales: 

Senckenbergiana, Band 30, no. 1-3, p. 129-152, illus., May 31, 1949. 

Discusses the description and classification of the genus Gilboaphyton, 

from the Middle Devonian of New York, by C. A. Arnold (1937) and 

indicates that, rather than being closely related to Drepanophycus, it 

shows affinity to Archaeosiyillaria. Important forms of the Archaeolepidophytales, Protolepidophytales, and Lepitlophytales are classified.

Krauskopf, Konrad Bates.

Physical chemistry of quicksilver deposition [abs.] : Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1526, Dec. 1950.

Krinitzsky, Ellis Louis. See Price, W. A.; Schultz, J. R.; Turnbull, W. J. 

Krumbein, William Christian. See also Dapples, E. C.; Sloss, L. L., 4.

1. Geological aspects of beach engineering, in Application of geology to 

engineering practice, Berkey Volume, p. 195-223, illus., Geol. Soc. Am., 

New York, 1950. Beach features and shoreline processes are described. 

The scope of interest of the geologist and the engineer is outlined and 

the collection of data, "Organization of reports, and engineering structures are discussed.

2. Grain-size measurements made in thin section, comments: Jour. Geology, 

v. 58, no. 2, p. 160, Mar. 1950. Comments on article by Felix Chayes, 3.

3. (and Ohsiek, L. E.). Pnlsational transport of sand by shore agents: Am. 

Geophys. Union Trans., v. 31, no. 2, pt. 1, p. 216-220, illus., Apr. 1950; 

discussion by John W. Hanclin and John C. Ludwick, with reply by W. C. 

Krumbein, no. 6, p. 936-937, Dec. 1950. Observations of sand migration 

along beaches with tidal inlets and tideless harbors show that the movement is pulsational, as a result of the building and shifting of sand spits 

and bars. The mechanics are described, and the harbor at Waukegan, 

Illinois, is used as an illustration.- V. S.

4. Occurrence and lithologic associations of evaporites in United States [abs.]: 

Oil and Gas Jour., v. 48, no. 51, p. 179, Apr. 27,1950.

Krusekopf, H. H. See Hseung, Y. 

Krynine, Paul Dimitri.

1. Petrology, stratigraphy, and origin of the Triassic sedimentary rocks of 

.Connecticut: Conn. Geol. Nat. History Survey Bull. 73, 239 p., illus.. 

incl. geol. map, 1950. The mineralogy, petrography, stratigraphy, and 

structure of the Triassic rocks are discussed comprehensively. Conditions of sedimentation, climate, and paleogeography are interpreted. An 

extensive bibliography is included.

2. The origin of red beds [abs.] : Am. Assoc. Petrol. Geol. Bull., v. 34, no. 8, 

p. 1770/Aug. 1950.
154 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Kuenen, Philip Henry.

1. Marine geology, x, 568 p., illus. New York, John Wiley & Sons, Inc. 1950. A 

comprehensive work covering numerous phases of submarine geological 

investigation. Chapter headings are: Physical oceanography, sea basins, 

Indonesian deep-sea depressions, sources and transportation of marine 

sediment, formation of marine sediments, coral reefs, geomorphology of 

the sea floor, and eustatic changes of sea level.

2. Stereoscopic projection for demonstration in. geology, geomorphology, .and 

other natural sciences: Jour. Geology, v. 58, no. 1, p. 49-54, illus., 

Jan. 1950. Discusses techniques of stereoscopic photography and projection, and the subjects to which they are best "applicable for 

demonstration. V. S.

3. (and Migliorini, C. I.). Turbidity currents as a cause of graded bedding: 

Jour. Geology, v. 58, no. 2, p. 91-127, illus., Mar. 1950. Experimental 

investigations on currents and bedding, the study of graded rocks from 

the Apennines, and general considerations, such as the absence of current bedding and ripple marking, character of coarse-material deposition, inclusion of fragments, show that deposits made by turbidity currents have distinctive textures and structures allowing their identification. A bibliography is appended. , V. S.

4. The formation of the continental terrace: Advancement of Science, v. 7, 

no. 25, p. 76-80, illus., May 1950. "The continental terrace has been 

attributed either to marine erosion, to deposition on the continental 

slope . . ., or the up-building on a subsiding foundation. The author 

suggests that the Atlantic terrace of North America is due to subsidence 

and accumulation over the whole structure caused by isostatic adjustment to a load, primarily deposited as fore-set beds. Present terraces 

have been formed since the Paleozoic. The apparent disappearance of 

earlier terraces forms a baffling problem of fundamental importance 

to geophysics and geology."

Kuhn, Truman Howard. See Van Tuyl, F. M.

Kulp, John Laurence. See also Holland, H. D., 1, 2; Kerr, P. F., 2.

1. (and Adler, Hans H.). Thermal study of jarosite: Am. Jour. Sci., v. 248, 

no. 7, p. 475-487, illus., July 1950. "Jarosite, argentojarosite, and 

plumbojarosite are examined by differential thermal analysis and X-ray 

diffraction. The structural and chemical changes which these minerals 

undergo on heating are discussed and compared with alunite. In general two endothermic peaks at about 400° C. and 700° C. are the major 

thermal features. A number of thermal curves of jarosite group 

minerals from typical localities are discussed."

2. (and Perfetti, Jose-N.). Thermal study of some manganese oxide minerals: 

MineralOgical Mag., v. 29, no. 210, p. 239-251, illus., Sept. 1950. The

method of thermal analysis, apparatus, and procedure are briefly

described. Thermal curves for representative specimens of pyrolusite, 

manganite, ramsdellite, and psilomelane-type minerals are shown, together with thermal curves of various artificial mixtures. The artificial

mixtures were studied to determine the size and shape of characteristic 

peaks as a means Of analysis of natural aggregates.

3. (and Carr, Donald A.). Surface area of deep sea sediments: Columbia

Univ., L,amont Geol. Observatory, Tech. Rpt. 2, 21 p., illus., Nov. 1950; 

abS., Geol. Soc. Am. Bull., v. 6O, no. 12, pt. 2, p. 19O2, Dec. 1949 ; Am

Mineralogist, v. 35, nos. 3-4, p. 284-285, Mar-Apr. 1950. In connection with absolute age determinations of deep-sea material, particularly 

t)y the radioactive inequililmum method, studies of absolute surface 

areas of the sediments have been undertaken. The surface areas of a

rejji-esentntix-e set determined to -within «n accuracy of 2 percent, ran£T6 from 2.5 to 40 m/g. and are cnaractensuc or a specmc sediment type.

4. strontium isotope age project progress report [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1479, Dec. 1950.

Kulstad, Robert 0. see Emmons, R, c. j Nixon, E. K., 2.
BIBLIOGRAPHY 155

Kummel, Bernhard, Jr. See also Flower, R. H., 2.

Triassic stratigraphy of the area around the Green River Basin, Wyoming: 

Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, .p. 28-36, illus., 1950. 

The Dinwoody, Woodside, and Thaynes formations, exposed in several 

areas adjacent to the Green River Basin in southwest Wyoming, are 

described. Notes on post Thaynes strata, also of Triassic age, are 

included. .v

"Sk

Kurtz, V. E.

(and McNair, Andrew Hamilton, and Wales, Donald B.). Stratigraphy of the . Dundas Harbour area, Devon Island, Arctic Archipelago [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1479, Dec. 1950.

Lacabanne, W. D.

(and Thiel, George Alfred). The effect of continuous addition of mineral 

grains to a settling environment: Jour. Sed. Petrology, v. 20, no. 3, p. 

161-173, illus., Sept. 1950. The settling behavior of mineral grains 

under conditions of continuous addition of grains to a fluid medium was 

observed in a modified elutriator. The relations between size, shape and 

density of grains are discussed.

Ladd, Harry Stephen.

Recent reefs: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 2, p. 203-214, illus., Feb. 

1950. Considers the nature, determining conditions, and types of reefs, 

the seaward concentration of living builder-organisms and landward or 

lagoonward aggregation of sediments, the control of reef growth by 

temperature and water purity and salinity, and the changes in the relations of land masses and sea bodies as an explanation of thick reefs and 

seamounts. V. S.

Ladoo, Raymond B.

Wollastonite, a new industrial mineral: Eng. Min. Jour., v. 151, no. 11, p. 95-97, 

illus., Nov. 1950. Brief notes on the occurrence, composition, and uses 

of wollastonite, CaSiOs, with particular reference to the deposit at Willsboro, New York.

LaFond, Eugene C.

(and Dietz, Robert Sinclair, and Knauss, J. A.). A sonic device for underwater sediment surveys: Jour. Sed. Petrology, v. 20, no. 2, p. 107-110, 

illus., June 1950. Describes a sonic device for determining the nature 

of the sea floor. It consists of a hydrophone to be dragged along the 

ocean bottom, and since the frictional noises caused by mud, sand, stony, 

and rock bottoms differ in character, it is possible to identify the bottom 

type. A test survey was made off the California coast near San Diego. 

, ' V. S. 

Lahee, Frederick Henry.

Our oil and gas reserves, their meaning and limitations: Am. Assoc. Petrol. 

Geol. Bull., v. 34, no. 6, p. 1283-1287, June 1950; Oil and Gas Jour., v. 49, 

no. 30, p. 69, 71-72, Nov. 30, 1950. A discussion of the need for uniform 

terminology and meaning in the estimation of oil and gas reserves.

Laird, Wilson Morrow.

Ground water in the Zeeland area, North Dakota: N. Dak. Geol. Survey 

Ground-water Studies No. 12, 38 p. ($), illus. incl. geol. sk. map, Oct. 

1948. Gives data on the physiography, glacial geology, and groundwater occurrence in the Zeeland area, Mclntosh County, southern North 

Dakota. Sections on pumping tests and quality of water are contributed 

by P. D. Akin.

Lalicker, Cecil Gordon.

Foraminifera of the Ellis group, Jurassic, at the type locality: Kans. Univ. 

Paleont. Contr. no. 5, Protozoa, art. 2, 20 p., illus., Feb. 24, 1950. The 

type section of the Ellis formation is near old Fort Ellis, 7 miles from 

Bozeman, southwestern Montana. This report contains systematic 

descriptions of the thirty-nine new species and one new genus (Ellisina) 

constituting the entire collection from the Ellis formation. The stratigraphic distribution of the genera is charted.
156 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Lamar, John Everts. See also Graf, D. L., 3.

Acid etching in the study of limestones and dolomites: 111. Geol. Survey Circ. 

156, 47 p., illus., 1950. The etching of calcareous rocks to determine their 

texture, grain size, noncarbonate components, and other lithologic characteristics is discussed as to procedure, use of hydrochloric and acetic 

acids, and possible applications. The results are illustrated by 22 

photographs of the Illinois limestones tested. V. S.

Lamey, Carl Arthur.

The Blewett iron-nickel deposit, Chelan County, Washington: U. S. Geol. Survey Bull., 969-D, p. 87-103, illus. incl. geol. map, 1950. The Blewett 

deposit is located 80 miles east of Seattle, Washington, in the northern 

Cascade Mts. An early Tertiary periclotite conglomerate, containing 

iron-rich lenses, lies on a pre-Tertiary serpentinised peridotite. The 

conglomerate was probably derived from the peridotite and from a 

lateritic iron deposit, with very little transportation. The theories of 

origin and accumulation are discussed.

LaMoreaux, Philip Elmer.

1. Ground-water geology of Tennessee Valley area in Alabama, with reference 

to vertical drainage: Ala. Geol. Survey Circ. 18, 13 p., illus. incl. geol. 

map, Aug. 1949. The area is underlain by the Tuscumbia and Fort 

Payne limestones of Mississippian age, which are cut by extensive solution cavities and constitute excellent aquifers. The relation of the 

water table level and the solution cavities to vertical drainage is discussed. V. S.

2. (and Swindel, G. W., Jr., and Lanphere, C. R.). Ground-water resources 

of the Huntsyille area, Alabama: Ala. Geol. Survey Bull. 62, 82 p., illus. 

incl. geol. map, 1950. The stratigraphy of the exposed formations, 

chiefly Mississippian and Pennsylvanian in age, and the hydrology of the 

formations are described. A revised geologic map of Madison County is 

included.

3. Fluoride in ground water of Alabama: Min. Eng., v. 187, no. 8, p. 887-888, 

illus., Aug. 1950, A. I. M. E. Trans., v. 187, 1950. Water from the 

glauconitic sands cin the Eutaw, Blufftown, and Ripley formations (Cretaceous) contains larger concentrations (up to 6.8 ppin) of fluoride than 

that from other formations. Tertiary formation content ranges from 

a trace to 1.2 ppm. Limited examination of water from the Piedmont

crystalline and Paleozoic areas indicates that the fluoride will not exceed 1 ppm.

Lancaster, Forrest W. See Jahns, R. H., 1. 

Lance, John Franklin. See also Jahns, R. H., 2.

Paleontologia y estratigrafia del Plioceno de Yepomera, Estado de Chihuahua;

la parte, Equidos, excepto Neohipparion: Mexico Univ. Nac., Inst. 

Geologia, Bol. 54, 81 p., illus., 1950. Describes in detail PlioJiippns

(AstroUpyus) stockii, n. sp., PlioMppus (PUohippw) mexicanus, n.

sp., and Nannipus cf. minor (Sellards) from the Pliocene beds of the 

Valley Of tile RiO FapigtiChiC, northwestern C/hinuahua, Mexico. Translated from the English by A. R. V. Arellano. 

Langj Andrew Jv Jr.

Feldspathized schist of the Fourmile area, Ouster County, South Dakota 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1527, Dec. 1950.

Lang, Arthur Hamilton. See also: James, W. F.

ccount of Canadian uranium aeposlts : Canadian Mill. Met Bull

no. 460, p. 426-433, illus., Aug. 1950; Canadian Inst. Mining and Metal- lurgy Trans., v. 53, p. 277-284, 1950. Eight types of deposits are described granitic, pegmatitic, metamorphic, hydrothermal, sedimentary,

cai-notite, secondary, and placer. The distribution of the deposits in each of the provinces is discussed, and a tame snows vn<? percentage

distribution.
BIBLIOGRAPHY 157

Lang, Bernard.

Garnmatron surveys: World Oil, v. 131, no. 6, p. 86, 88, Nov. 1950. The gammatron method of exploration consists of measurement of radiations 

on the earth's surface as a means of discovering structures favorable 

to oil and gas accumulation. The procedure is described, and applications are discussed. . V. S.

Lang, Joseph Winford.

(and Winslow, A. G., and White, Walter Noy). Geology and ground-water 

resources of the Houston district, Texas: Texas State Bd. Water Engineers Bull. 5001, 55 p. (J), illus. incl. geol. map, Oct. 1950. Gives a 

brief description of the stratigraphy of the Houston area as it relates 

to the occurrence of ground water. The remainder of the bulletin is 

devoted to data on pumpage, water-level fluctuation, quality of water, 

and deep well exploration.

Lang, Walter Theodore Barnes.

Comparison of the cyclic deposits of the Castile and Salado formations of the 

Permian of the Southwest [abs.'J : Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1479-1480, Dec. 1950.

Langston, Wann, Jr. See Stovall, J. W., 2. 

Lanphere, C. R. See LaMoreaux, P. E., 2.

Lantz, Robert Joseph.

Geological formations penetrated by the Arkansas-Louisiana Gas Company 

No. 1 Barton well on the Cecil anticline, Franklin County, Arkansas: 

Ark. Res. Dev. Comm. Div. Geology Bull. 18, 26 p., illus., 1950. Gives 

the detailed lithology of the core and cuttings obtained from the No. 1 

Barton well, the first gas producer from lower Pennsylvanian Morrow 

strata in Arkansas. Strata of Ordovician, Silurian, Devonian, Mississippian, and Pennsylvanian age were penetrated. The formations 

are described briefly and tentatively correlated with adjacent areas.

LaPaz, Lincoln. See also Beck, C. W., 1.

The possible preservation in concretions of traces of ancient meteorites: Pop. 

Astronomy, v. 58, no. 1, p. 35-39, Jan. 1950; Meteor. Soc. Contr., v. 4, 

ho. 4, p. 239-243, 1950. Recent work in sedimentary petrology points 

to the fact that heavy minerals or other materials may be well preserved in impermeable concretions while similar materials in the surrounding beds may be highly altered ^or may have disappeared com-

- pletely. The possibility of finding moissanite (meteoritic SiC) is

 discussed.

Larde y Larin, Jorge.

Indice provisional de las regiones fosillferas de El Salvador: Paleontologia 

Salvadorena, 11 p. [San Salvador], 1950. Lists 68 localities in El Salvador, and for each locality the numbers of specimens in the collection 

of the Muse'0 Nacional are given.

Larios, Hermion. See Mina Uhink, F., 1.

La Rocque, Aurele.

Pre-Traverse Devonian pelecypods of Michigan: Mich. Univ. Mus. Paleontology Contr., v. 7, no. 10, p. 271-366, illus., Mar. 29, 1950. Contains 

systematic descriptions of 23 genera, including three new genera, 

Diodontopteria, Liromytilus, and Phenacocyclas. Several new species 

are described. A section on the strati graphic distribution of the pelecypod faunas and an extensive bibliography are included.

980682° 52 11
158 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1 9 5*0

Larsen, Esper Signius, Jr. See also Meyrowitz, R.

1. (and Draisin, Wilburt M.). Composition of the minerals in the rocks of 

the southern California batholith: Internat. Geol. Cong., 18th, Great 

Britain, Bpt. pt. 2, p. 66-79, illus., 1950; abs., Volume of titles and 

abstracts, p. 6, 1948. The rocks of the batholith range from calcic 

gabbro to granite. The. chemical compositions of the minerals are 

reported and the relation between the compositions of the minerals 

and of the rocks is discussed. The ratio FeO:FeO+MgO is approximately the same for any rock as for all the mafic minerals in that rock, 

ranging from 0.36 in calcic gabbro to 0.85 in granite. The anorthite 

content of plagioclase changes regularly with the rock composition.

2. (and Keevil, Norman Bell, and Harrison, Harold Charles). Method of 

 determining the age of igneous rocks using the accessory minerals 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1480, Dec. 1950.

Larsen, Veryl E.

The "hard rock" geology of Boulder County, Colorado: Compass, v. 27, no. 3, 

p. 147-159, illus. incl. geol. sketch map, Mar. 1950. Outlines very briefly 

the existing information on the metarnorphic and igneous rocks in 

Boulder County, Colorado. Notes on the ore deposits of the Jamestown 

district, Caribou-Grand Island district, and Boulder County tungsten 

district are included.

Larson, E. Richard.

1. Ordovician diasteins in Missouri: Jour. Sed. Petrology, v. 20, no. 2, p. 63- 

64, illus., June 1950. Describes two prominent examples of diastems 

in the Middle Ordovician Plattin limestone of eastern Jefferson County, 

Missouri. Convergence of the Plattin formation, from Cape Girardeau 

to St. Louis County, Missouri, is partly due to thinning of its members 

caused by depositional hiatuses.

2. Stratigraphy of the Plattin limestone in southeastern Missouri [abs.] : 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 14SO-14S1, Dec. 1950.

Lasky, Bernard H.

Surface minerals reflect subsurface structure in new exploration technique:

World Oil, v. 131, no. 5, p. 73-76, 78, 81, illus., Oct. 1950. The use of 

mineral alteration studies, of the type that have been employed in ore 

exploration, is described in its application to petroleum exploration and

delineation of subsurface structure. A close correlation has been noted

between Structure and alteration. Xtie results of surveys In areas of.

Texas and Louisiana are oited.

Lasky, Samuel Grossman.

1. (and Hoagland, A, D,), Central mining district, New Mexico, in Dunbam,

K. C. eel., Symposium on . . . lead and zinc: Internat. Geol. OoHg., 18th, Great Britain, Bpt. pt. 7, p. 97-110, illus. ma, geoi. map, 19505

abs., Volume of title and abstracts, p. 46-47, 1948. Reprinted in West

Texas Geol. Soc. Guidebook, Field Trip no. 3, p. 7 24, 1949. Ttie Central mining district, near Hanover, New Mexico, is one of the leading zinc

producers in the United States. The geology, structure, and minei'alizfl.- 

tion are described, and ore reserves are estimated. Three types of 

deposits are recognized contact metamorphic, replacement, and vein.

2. Mineral-resource appraisal by the U. S. Geological Survey : Colo. School of 

Mines Quart., v. 45, no 1A, p. 1-27, illus., Jan. 195O. Outlines and

describes the work of the TJ. S. Geological Survey in developing and

maintaining a program for a continuous appraisal of the mineral position of the United States insofar as it is related to geologic considerations.

3. [Discussion of alteration and its application to ore search], in Applied

geOlOgy,- a Symposium; COlO. ScUoOl of Mines Quart., v. 4S, no. X3B,

p, 337-338, Jan. 1950.

4. Mining geology, 1949 : Min. Eng., v. 187, no. 1, p. 24-28, illus., Jan. 1950. A

review of progress in mineral exploration during 1949, witn comments

on geochemical prospecting and mineral resource appraisal. ,
. ' BIBLIOGRAPHY . 159

Lasky, Samuel Grossman Continued

5. How tonnage and grade relations help predict ore reserves: Etag. Min. Jour., 

v. 151, no. 4, p. 81-85, illus., Apr. 1950; reprinted in French, Chronique 

des Mines Coloniales, 19C Anuee, No. 177, p. 58-65, illus., Mar. 15, 1951. 

Studies of certain mineral deposits have shown that, wherever there is 

gradation from richer to poorer ores, there appears to be a consistent 

mathematical relation between tonnage and grade. This relationship, 

expressed in mathematical curves, may serve to predict unknown parts 

of deposits by ttie extrapolation of plotted curvatures beyond available 

data. The method is illustrated by application to a hypothetical porphyry-copper deposit. V. S.

Latour, B. A. See Buckham, A. F., 1.

Latta, Bruce Ferrell.

Geology and ground-water resources of Barton and Stafford Counties, Kansas: 

Kans. Univ., State Geol. Survey Bull. 88, 228 p., illus. incl. geol. map, 

1950. Describes the Cretaceous to Recent stratigraphy, the physiography, and the occurrence of ground water in Barton and Stafford 

Counties in central Kansas. Detailed data are given on the supply, 

development, and chemical character of the ground water, and on areal 

conditions. Well records are included.

Laudon, Lowell Robert.

Imperial River section, Mackenzie Mountains, Northwest Territories, Canada: 

Am. Assoc. Petrol. Geol. Bull., v. 34, no. 7, p. 1565-1577, illus., July 1950. 

The details of a well exposed section of more than 6,000 feet of Cambrian, 

Silurian, and Devonian rocks in the Imperial River canyon, MacKenzie 

Mountains, Northwest Territories, are presented in columnar form and 

discussed. V. S.

Laurence, Robert Abraham.

Geologic investigations and exploration in southeastern United States, in 

Snyder, F. G., ed., Symposium on mineral resources of the southeastern 

United States, p. 1-8, illus., 1950. Describes recent mineral developments and stresses the need for accurate geologic mapping as a foundation for modern mineral exploration. Geochemical prospecting may also 

prove useful in future exploration. A map showing geological map 

coverage of the southern Appalachian region is included.

Laursen, Dan. See also Harder, P.

The stratigraphy of the marine Quaternary deposits in West Greenland: 

Meddelelser om Gr0nland, Bd. 151, no. 1,142 p., illus., 1950; Copenhague 

Univ. Mus. Min£r. G6ol., Commun. G6ol. no. 41, 1950. Marine Quaternary deposits in West Greenland, from Kugssineq, Svartenhuk Peninsula .in the north to Sukkertoppen in the south, are described. Shell lists 

are included. Correlation with Quaternary deposits of Iceland, Norway, and Denmark is discussed.

Laverdiere, Joseph Willie.

Baleine fossile de Daveluyville, Quebec: Naturaliste Canadien, v. 77, nos. 9-10, 

p. 271-282, illus., Sept-Oct. 1950; abs., Royal Soc. Canada Proc., 3d ser., 

v. 44, p. 229, 1950. A fossil whale skeleton was found in 1947 in the 

Pleistocene strata of the Daveluyville area, near the St. Lawrence 

River, Quebec. The skeleton is described, and the associated fauna is 

listed. Chemical and size analyses of the enclosing soil are given. 

Other localities in Ontario and Quebec, where cetacean fossils have been 

found, are indicated.

Laves, Fritz.

1. The lattice and twinning of microcline and other potash feldspars: Jour. 

Geology, v. 58, no. 5, p. 548-571, illus., Sept. 1950. The lattice symmetry 

and the various modifications in the potash feldspars are investigated, 

and a new X-ray determination of the lattice of microcline is given. The 

structural relations between microcline, triclinic adularia, and "mono-, 

clinic" orthoclase are discussed, making use for the most part of intensity 

differences in the X-ray photographs.
160 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Laves, Fritz Continued

2. (and Chaisson, Ursula). An X-ray investigation of the "high"-'Uow" albite 

relations: Jour Geology, v. 58, no. 5, p. 584-592, illus., Sept. 1950. The 

investigation of the differences in optical measurements and X-ray 

powder photographs of "high" and "low" albite is reported.

3. Twinning in microcline [abs.] : Am. Mineralogist, v. 35, nos. 1-2, p. 127, 

Jan.-Feb. 1950.

4. The geometry of triclinic adularia [abs.r] : Am. Mineralogist, v. 35, nos. 3-4, 

p. 285, Mar.-Apr. 1950.

Lawrence, Donald Buermann.

Glacier fluctuation for six centuries in southeastern Alaska and its relation to 

solar activity: Geog. Rev., v. 40, no. 2, p. 191-223, illus., Apr. 1950. 

Study of the flow of glaciers from the southern part of the Juneau Ice 

Field, Alaska, shows a maximum advance in the early or middle 18th 

century, coinciding with the end of a period of great sunspot dearth in 

1715, and subsequent recessions of 1.3 to 5 miles. V. S.

Lawson, Andrew Cowper.

Sea bottom off the coast of California: Geol. Soc. Am. Bull., v. 61, no. 11, p. 

1225-1241, illus., Nov. 1950. A review of Shepard and Emery's "Submarine topography off the California coast" (Geol. Soc. Am. Spec. Paper 

31, 1941) in which a different classification and hypothesis of origin of 

the features shown on the U. S. Coast and Geodetic Survey charts are 

presented.

Layer, Douglas Bruce. See Waring, W. W.

Layne, N. M., Jr.

A procedure for shale disintegration: Micropaleontologist, v. 4, no. 1, p. 21, 

Jan. 1950. If .indurated shales are first heated to drive out interstitial 

moisture, covered with gasoline for half an hour, and then decanted 

before being boiled in water, the time required for disintegration can be 

reduced to a few minutes.

Leatherock, Constance,

Subsurface stratigraphy of Paleozoic rocks in southeastern Montana and

adjacent parts of Wyoming and South Dakota: U. S. Geol. Survey Oil 

and Gas Inv. Chart OC 40. 1950. Numerous columnar sections are 

shown, accompanied by a text which includes a section on oil and gas 

possibilities.

Le Conte, Joseph. See Armstrong, H. K.

Lee, Charles Hamilton.

Classification and definitions of subsurface water: Assoc. Int.-Hydrol. Sci., 

Reunion, Washington, 1939, C. R. tome 2, Comm. des Eaux Souterraines,

Question 2, Rapport 1,11 p., [1948?].

Lee, H. A.

Pleistocene geology of Fenelon Township, Victoria County, Ontario; Canaaa

Geol. Survey Paper 50-36, 14 p. (t), geol. map, 1950. Fenelton TownShip is located 75 miles nortlieast of Toronto, Ontario. The bedrocK of 

the area is chiefly Trenton limestone. The various glacial features and

glacial geology ai-e described. -A. tubie or I>K:»C:U ji^-w.uiojus M.XICI t>ot«ss

on the soils and sand and gravel deposits are included. 

Lee, 0. Ivan.

jv £ ... :»<>»« fo.-srotton ciu.vi-tz cryst.-il laonHfcf. Crystal Hill nen r T}elnwnv<3 Wnter Gap, Penna,: Kocks and Minerals, v. 25, nos. 7-8, p. 3T2-3T5, snetcn map,

July-Aug. 1950. Reminds collectors of the quartz crystal locality, 

Crystal Hill, near Stormsvilie, Monroe County, Pennsylvania, v. s.
BIBLIOGRAPHY 161

Leet, Lewis Don. See also Ewing, W. M., 1.

1. Earth waves. 122 p., illus., Harvard Monograph in Applied Science no. 2, 

New York, John Wiley .& Sons, 1950. Theoretical fundamentals and 

practical illustrations are given on the transmission, measurement, and 

types of waves In the earth in application to exploration for minerals, 

mapping of geologic structures, study of hurricanes, and shock-resistance 

of buildings. " V. S.

2. Atlantic basement rocks: Geol. Soc. Am. Bull., v. 61, no. 4, p. 411, Apr. 1950. 

The view that the granitic layer may be absent in parts of ocean basins, 

based on the seismic evidence obtained in the Atlantic Ocean at 34° N. 

lat, 66°30' W. long, by Ewing and others, is questioned on the grounds 

of data on wave velocities. V. S.

3. (and Linehan, Daniel, and Berger, Philip). Investigation of the T phase 

[abs.] : Earthquake Notes, v. 21, nos. 1-2, p. 8-9, Mar.-June 1950.

Leggette, Ralph Maxwell.

Geologic methods, in Prospecting for ground water: Am. Water Works Assoc. 

Jour., v. 42, no. 10, p. 945-946, Oct. 1950. A brief statement of the importance of geologic studies in ground-water development, the effect of 

geology on the mineral content of ground water, and the variability of 

water-bearing properties of different types of formations.

Legrand, Harry E. See also Mundorfl,' M. J., 1.

Ground water in the French Broad River Basin, North Carolina, in Hydrologic 

data on the French Broad River Basin, 1857-1945: N. C. Dept. Conserv. 

Dev., Div. Water Res. and Eng., p. 160-177, geol. map, 1950. Describes 

the occurrence of ground water and the water-bearing character of the 

rocks.

LeGrand, J. R. See Van Horn, E. 0.

Lehner, E.

Artesian water supply of Carriacou. 6 p., geol. map. St. George's, Grenada, 

Government Printing Office. 1935. In connection with a report on the 

possibilities of establishing an artesian water supply for the island of 

Carriacou, in the Lesser Antilles, West Indies, a sketch of the stratigraphy and structure is given, and a geologic map on a scale of 1: 50,000 

is included. The strata consist of Tertiary volcanics and limestones, 

the latter containing Foraminifera. Structurally, the island is a monocline dipping southeast.

Lehner, Robert E.

Geologic setting of the Ohio State University Field Station: Compass, v. 27, 

no. 2, p. 21-25, illus., Jan. 1950. Outlines briefly the stratigraphy, structure, and rock types of the Wasatch and Gunnison plateaus, Utah.

V. S. 

Leighton, Morris Morgan.

1. Mineral resource research and activities of the State Geological Survey, 

1948-1949: 111. State Geol. Survey Circ. 166, p. 161-181, illus., 1950.

2. (and Willman, Harold Bowen). Loess formations of the Mississippi Valley: 

Jour. Geology, v. 58, no. 6, p. 599-623, illus., Nov. 1950; 111. State Geol. 

Survey Rpt. Inv. 149, 1950. Discusses the stratigraphic succession, 

eolian origin, distribution, composition, and other features of the Pleistocene loess deposits i-n both the upper and lower Mississippi Valley. The 

theory that the loess deposits of the lower Mississippi Valley are derived 

from backswamp alluvial deposits by a process of loessiflcation is 

rejected.

Leith, Carlton James.

1. Geology of the Quien Sabe quadrangle, California: Calif. Dept. Nat. Res. Div. 

Mines Bull. 147, p. 7-35, illus. incl. geol. maps, Oct. 1949. The Quien 

Sabe quadrangle, 90 miles southeast of San Francisco, is characterized 

by the Franciscan group of Jurassic age and sediments, volcanics, and 

intrusives of Cretaceous, Tertiary, and Quaternary ages. Geomorphology, stratigraphy, structure, geologic history, and economic geology are 

described. V. S.
162 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Leith, Carlton James Continued

2. Removal of iron oxide coatings from mineral grains: Jour. Sed. Petrology, 

v. 20, no. 3, p. 174-176, Sept. 1950. "Hydrogen produced by the action 

of oxalic acid on aluminum is an effective agent for the removal of iron 

oxide coatings from mineral grains, and, because the method is rapid 

and simple, it is recommended for routine analysis of granular materials. 

Data are presented to compare the results obtained by this method with 

those produced by the use of various other reagents."

3. Mineralogy and petrology of the Quien Sa*be volcanics, California [abs.] : 

Geol. Soc. Am.,Bull., v. 61, no. 12, pt. 2, p. 1527, Dec. 1950.

Leith, Charles Kenneth.

Memorial to Sydney H. Ball [1877-1949] : Geol. Soc. Am. Proc. 1949, p. 113-114, 

port., June 1950.

Leith, T. H.

Heat flow at Kirkland Lake [abs.] : Royal Soc. Canada Proc., 3d ser., v. 44, p. 

229-230, 1950.

Lemoine, Remy C. See Taylor, G. C., Jr.

Leonard, Arthur Byron. See also Frye, J. C., 3.

1. A Yarmouthian molluscan fauna in the mid-continent region of the United 

States: Kansas Univ. Paleont. Contr. no. 8, Mollusca, Art. 3, 48 p., 

illus., Mar. 24, 1950. Sixty-five species of gastropods and pelecypods, 

associated with the Pearlette volcanic ash of Pleistocene age in Iowa, 

Nebraska, Kansas, Oklahoma, and Texas, are described and illustrated. 

The composition of the fauna suggests certain paleoecological features.

V. S.

2. Stratigraphic zonation of the Peoria loess in Kansas [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1481, Dec. 1950.

Leonard, Benjamin Franklin, 3d.

Magnetite deposits of the St. Lawrence County district, New York [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1481-1482, Dec. 1950.

Leonard, Frederick Charles.

On the identification and the recovery of the Goose Lake, California, siderite 

(ECN=-j-1205, 420) ; Pop. Astronomy, v. 58, no. 10, p. 516-518, Dec. 

1950; Meteor. Soc. Contr., v. 4, no. 4, p. 323-324, 1950. Historical account of the Goose Lake, California, meteorite.

LeRoy, Leslie Walter.

1. (editor), Subsurface geologic methods (a symposium). 2d ed., 1166 p., 

illus. Golden, Colo., Colorado School of Mines. 1950. Contains 58

articles, 12 of which are new in this edition, by specialists on various

methods and techniqiies used in subsurface geologic exploration. The

first edition was published as Colorado School of Mines Quarterly, v. 

44, no. 3, July 1949.

2. Comments on sedimentary rocks, in Subsurface geologic methods, p. 71-83,

Colo. School of Mines, 1950. The types, texture, and color of sedimentary

rocfes ar-e briefly revie-weci.

Lester, James George.

1. The Geiger-Mueller counter in geologic work : Ga. Geol. Survey Bull. 56, p.

112-117, illus., 1950. Gives preliminary results obtained in using the

Geiger-Mueller counter to distinguish the contact bet-ween Stone Mountain granite and the rocks into which it has been intruded and to locate

strata of monazite-bearing sands.

2. (and Alien, Arthur Thomas, Jr.). Diabase of the Georgia Piedmont: Geol. 

Soc. Am. Bull., v. 61, no. 11, p. 1217-1224, illus. incl. geol. map, Nov. 1950. 

Fifty-seven diabase dikes were mapped in northern Georgia and studied

megascopically and microscopically. The distribution, structural and

geomorpnic relations, and petrography are described. Five dike zones 

were located and seem to be directly related to down warps during postPaleozoic time. The age of the dikes is tentatively set as Triassic.
BIBLIOGRAPHY 163

Levin, S. Benedict.

1. Genesis of some Adirondack garnet deposits: Geol. Soc. Am. Bull., v. 61, no. 

6, p. 519-565, illus., incl. geol. mapSj June 1950; abs. with title Petrology and genesis of Gore Montain garnet, New' York, v. 59, no. 12, pt. 

2, p. 1335-1336, Dec. 1948. "New mineralogic and petrographic data, derived from study of a number of garnet-rich deposits in the southeastern 

Adirondacks, are presented." They indicate that the Barton ore is an 

extreme metagabbro facies formed during the peripheral metamorphism 

of the gabbro by intrusive syenite magma. Chemical analyses, specific 

. gravities, optical and X-ray diffraction data, micrometric modes, micrographs, maps, and graphs are presented.

2. The physical analysis of polycomponent garnet [abs.]: Am. Mineralogist, 

v. 35, nos. 3-4, p. 285-286, Mar-Apr. 1950; v. 34, nos. 3-4, p. 279, MarApr. 1949.

3. Origin of hornblende rims on Adirondack garnet [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1482, Dec. 1950.

Levings, William Stephen.

Contribution to the geomorphology of the Raton Mesa area [Colo.] [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1555-1556, Dec. 1950.

Levinson, Stuart A.

1. The hingement of Paleozoic Ostracoda and its bearings on orientation : Jour. 

Paleontology, v. 24, no. 1, p. 63-75, illus., Jan. 1950. "The hingements of 

species of fifteen Paleozoic ostracode genera are described. The importance of hingement in the classification, identification and evolutionary 

history of ostracodes is stressed and it is shown that hingement can be 

used as a criterion for orienting Paleozoic ostracodes."

2. A technique for sectioning microfossils: Science, v. Ill, no. 2873, p. 60, 

Jan. 20,1950. The technique involves use of a thermoplastic having the 

same resistance to grinding as calcite and makes possible rapid sectioning of calcareous microfossils. The application to ostracod sectioning is 

described. V. S.

Levorsen, Arville Irving.

Memorial to William Hnrvey Emmons [1876-1949]: Geol. Soc. Am. Proc. 1949, 

p. 151-157, port., June 1950.

Lewis, Donald R.

Base-exchange data, in Analytical data on reference clay minerals: .Am. 

Petrol. Inst, Project 49, Clay Mineral Standards, Prelim. Rpt. 7, p. 

91-124, July 1950.

Liberty, B. A. See Caley, J. F. 

Liebenberg, W. R. See Ahrens, L. H., 3.

Limon-Gutierrez, Luis.

Las Capas "Sorites" del Oligoceno superior de Mexico y sus foraminiferos: 

Asoc. Mex. Geol. Petrol. Bol., v. 2, no.. 10, p. 617-630, illus., Oct. 1950. 

The Sorites beds, in the Tampico-Tuxpan bay area of northern Veracruz, 

are described and considered to be Upper Oligocene in age. The 

foraminiferal fauna is listed.

Lindberg, Marie Louise Lange.

1. Arrojadite, hiihnerkobelite, and graftonite: Am. Mineralogist, v. 35, nos.. 

1-2, p. 59-76, illus., Jan.-Feb. 1950. Arrojadite f-rom Nickel Plate pegmatite, South Dakota, was found isostructural and identical with arrojadite from Serra Branca pegmatite, Brazil, but structurally different 

from arrojadite from Hiihnerkobel, Bavaria and Norro, Sweden. The 

latter is designated as hiihnerkobelite. A new analysis is given of 

graftonite associated with arrojadite. V. S.

2. (and Frondel, Clifford). Zincian rockbridgeite: Am. Mineralogist, v. 35, 

nos. 11-12, p. 1028-1034, illus., Nov.-Dec. 1950. Gives physical, chemical, optical, and X-ray data for zincian rockbridgeite. The material 

described occurs in fibrous crusts as an alteration product of triphylite 

in pegmatite at Maxedo, Portugal.
164 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1 9 5 Q>

Linehan, Daniel. See Leet, L. D., 3.

Link, Theodore August.

1. Theory of transgressive and regressive reef (bioherm) development and 

origin of oil: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 2, p. 263-294, 

illus., Feb. 1950; ahs., Tulsa Geol. Soc. Digest, v. 18, p. 44, 1950. The 

development of reefs in transgressive and regressive seas is described in 

detail, using examples from Alberta and Texas. Hydrocarbon occurrence is considered indigenous, resulting from concentration of organisms. The terms bioherm and .biostrome are defined, the latter differing 

in lacking the greater vertical dimensions of the bioherm. V. S.

2. Edwin Russell Lloyd, honorary member: Am. Assoc. Petrol. Geol. Bull., v. 

34, no. 5, p. 977-980, port., May 1950.

3. The western Canada sedimentary basin area: Canadian Min. Met. Bull. no. 

459, p. 379-389, illus., July 1950; Canadian Inst. Mining and Metallurgy 

Traris., v. "53, p. 254-264, 1950. The stratigraphy and structure of the 

basin area between the pre-Cambrian shield and the Cordilleran 

area is outlined. The strata range from Cambrian to Tertiary, and the 

structure varies from broad arches and synclines to the highly folded 

and thrust Foothills belt and Rocky Mts. Examples of producing oilfield structures are given.

4. Western Canada's oil and gas potentialities: World Petroleum, v. 21, no. 7, 

P. 40-43, illus., July 1950. A general discussion of oil and gas occurrence 

in western Canada, well illustrated with generalized maps and cross 

sections.

5. Recent oil and gas developments in Alberta, Canada: Mines Mag., v. 40, 

no. 10, p. 87-91, 96, 115, illus., Oct. 1950. Summarizes the geological 

conditions, recent oil discoveries, and development.

6. Some thoughts on "reef" trends and configurations: Geol. Assoc. Canada 

Proc., v. 3. p. 27-37, illus., Dec. 1950. "An attempt to visualize what 

some modern coral-reef alignments and configuration might appear like, 

if projected into the rocks of the past geological periods, is the main 

theme of this paper. As an example, the tilting, warping or folding of

a sizeable atoll and the resultant accumulation and concentration of

oil or gas are considered from a theoretical viewpoint. StlbSlU'faCe 

contouring of reef surfaces, as revealed from oil well drilling, is also

discussed on the basis of their growth, evolution, and history."

7. Source of the oil of the "tar sands" Of the Athabaska River, Alberta [abs.]:

Am. ASSOC. Petrol, aeol. Bull., v. 34, no. 11, p. 2252, Nov. 1050.

Link, Walter Karl.

1. Approach to the origin of oil: Oil ana Gas Jour., v. 48, no. 453, p. ss, 01-02

illus., Mar. 16, 1950; Farol (Buenos Aires), v. 2, no. 5, p. ( S-i3, iuus.( , Dec. 1050. (Spanish.) Suggests and discusses the possibility of deter- mining the origin of oil .through study of recently deposited seaimente. 

The Tertiary through Recent Gulf Coast sediments are noted as particXllarly well ixUu/ptea to st.cii a st«<iy, n,,«i iVfaixsoa of tbo investigation 11'e

outlined.

2. Direct geology: Am. Assoc. Petrol. GeOl. BUlL, V, 34, HO, 0, p, 1901-1903,

Sept. 1950. The study .of current geologic processes, and particularly 

an understanding of Sediments and Sedimentation processes, is advoctiteci IXE. essentim for- a better grasp of subsurface conditions, especially 

ID Oil exploration. v. s.

Lins, THomas \V.

Origin and environment Of the Tonganoxie Sandstone in northeastern Kansas: 

Kn.ns.Tjniv state Geol. Survey Bull. 86, pt. 5, p. 105-140, illus. incl. geol. lUflP OCt, dl) liW T11C '-Tungw**^ 10 -.".«».t.>.-.o i« ... ' , ., ,:,,.,. .,? t-^ <3

Stranger 'formation, the lowermost Subdivision ill the DdlglaS gl'OUp 

Of the Vlrgllian Series (Uppei- Pennsyivnnian), in Tonganoxie Valley,

Kansas, its origin, lithologic composition, stratigraphic relations to

ti-ie i-inciovivine MissonHnn and overlying Vifgilian groups, and groundwater bearing; capacity are nescrurca ana mwv ^ - ^,,Bi

and cross-sections. V. S.
BIBLIOGRAPHY 165

Little, H. W.

Salmo map-area, British Columbia (report and map) : Canada Geol. Survey 

Paper 50-19, 43 p. ($), illus. incl. geol. map, 1950. The Salmo area, in 

the Kootena district, British Columbia, is underlain by faulted and 

folded sedimentary and volcanic rocks of Proterozoic, Paleozoic, and 

Mesozoic age. Economic resources are zinc-lead deposits and minor 

occurrences of gold, tungsten, and iron oxide. The formations and 

intrusives are described and mapped. V. S.

Littlefield, Romaine F. See Keller, W. D., 2.

Littleton, Robert Thomas.

1. Reconnaissance of the ground-water resources of the Wheatland Flats area, 

Wyoming: U. S. Geol. Survey Circ. 70, 32 p. (J), illus. incl. geol. map, 

Apr. 1950.. The Wheatland Flats area, within the Laramie River basin, 

is underlain by terraced gravel deposits and alluvium of Quaternary 

age resting on an irregular surface of Tertiary sediments. The geology 

and water-bearing properties are described. V. S.

2. Ground-water conditions in the vicinity of Gillette, Wyoming, with a section 

on the quality of ground waters, by Herbert A. Swenson: U. S. Geol. 

Survey Circ. 76, 43 p. (J), illus., Oct. 1950. In the Gillette, Wyoming, 

area Cambrian to Cretaceous sediments are overlain by the Tertiary 

Wasatch and Fort Union formations, in turn mantled by thin Quaternary 

alluvium. The Fort Union formation appears to be the best aquifer.

V. S.

3. Reconnaissance of the geology and ground-water hydrology of the Laramie 

Basin, Wyoming, with special reference to the Lararnie and Little 

Laramie River Valleys: U. S. Geol. Survey Circ. 80, 37 p. (J), illus. 

incl. geol. map, Nov. 1950. A columnar section of the Mississippian to 

Recent strata in the Laramie Basin, including lithology and groundwater characteristics, is given. The hydrology of the area is described, 

and specific data on water loss from streams as it may be related to 

geologic conditions are given.

Lochman, Christina.

1. Paleoecology of the Cambrian in Montana and Wyoming: Natl. Research 

Council, Report of the Committee on a treatise on marine ecology and 

paleoecology, 1948-1949, no. 9, p. 31-71, illus., Dec. 1949. Describes the 

conditions of sedimentation and faunal development and distribution 

during Middle and Upper Cambrian time, in Montana and Wyoming, on 

the slowly down warping, westward sloping shelf bordering the miogeosyncliue trending from western Montana through southern Utah. A 

correlation table of formations and facies is given. The ecologic significance of pebble conglomerate, oolite, and glauconite is discussed. A 

bibliography is included.

2. Upper Cambrian faunas of the Little Rocky Mountains, Montana: Jour. 

Paleontology, v. 24, no. 3, p. 322-349, illus., May 1950. The Cambrian of 

the Little Rocky Mts., Montana, represents the northeasternmost outcrop of Cambrian in the Cordilleran province. The only complete 

sequence of Upper Cambrian in the area occurs in a section along Lodge 

Pole Creek. The sequence is a typical development of the Pilgrim 

formation of central Montana. The trilobite fauna is described; one 

new genus, Knechtelia, and live new species are included.

3. (and Duncan, Donald Cave). The Lower Ordovician Beliefontia fauna in 

central Montana: Jour. Paleontology, v. 24, no. 3, p. 350-353, illus., May 

1950. Describes the occurrence of a trilobite fauna (diagnostic of the 

Bellefontia zone) from the uppermost beds of the Pilgrim formation, 

Lower Ordovician, near Half Moon Pass in the Big Snowy Mts., Montana. 

It is inferred that shallow seas continued to occupy the shelf areas until 

after early Lower Ordovician time, and that the absence of the Ordovician beds can be attributed to later erosion.
Lochman, Christina Continued

4. Status of Dry Creek shale of central Montana: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 11, p. 2200-2222, illus., Nov.. 1950. Discusses the Upper 

Cambrian stratigraphy of the Horseshoe Hills area, central Montana. 

The name "Dry Creek shale" should be used only for the lower member 

of the Snowy Range formation. The name "Sage pebble conglomerates" 

is proposed for the upper member of this formation. Brick-red shales 

and dolomites, also formerly designated by the name Dry Creek and 

since proved to be Devonian, should be called the Maywood formation.

V. S.

Locke, L. C.

(and Bliss, Jack E.). Core analysis technique for limestone and dolomite: 

World Oil, v. 131, no. 4, p. 204, 206-207, illus.,' Sept. 1950. In the measurement of permeability and porosity of nonhomqgeneous limestone 

and dolomite cores for the estimation of total oil reserves in formations, 

the determination of solution cavity volume by the displacement and 

re-saturation technique may provide more dependable data than directional core analysis because of the heterogeneity of the pore system. 

The technique is described. V. S.

Lockwood, Robinson Peale.

(and Erdrnan, Oscar Alvin). Stettler field, Alberta, Canada [abs.]: Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 11, p. 2253, Nov. 1950.

Lockwood, William Noble.

Impregnating sandstone specimens with thermosetting plastics for studies of 

oil-bearing formations: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 10, p. 

2061-2067, illus., Oct. 1950. Describes experimental tests of the suitability of the thermosetting plastics Castolite, Laminae Resin 4128, and 

Laminae Resin 4126 as materials for impregnating sandstone specimens 

for thin-section preparation. V. S.

Loeblich, Alfred Richard, Jr, See also Applin, E. E. K., 1.

1. (and Tappan, Helen Nina). North American Jurassic Foraminifera; I, 

the type Redwater shale (Oxfordian) of South Dakota : Jour. Paleontology, v. 24, no. 1, p. 39-60, illus., Jan. 1950. "Fifty-six species of

Foraininifera, belonging to eight families, are described and figured froin

the type Redwater shale member of the sundance formation of south 

Dakota. Over two-thirds of the species belong to the Lagenidae." Most

of the species described are new.

2. (and Tappan, Helen Nina). North American Jurassic Foraminifera; II,

characteristic western interior Callovian species; Washington Acad,

Sci. Jour., v. 40, no. 1, p. 5-19, illus., Jan. 15, 1950. New species of

Ammodiscus, Frarikeina, Lenticulina, Astacolus, Marginulinopsis, VaginuUnopsis, D&ntalina, Nodosaria, Lingulina, Tristix, Vagimilina, Citharind, CitllMrlnella,, TrUtracHia, and Turrispirtn-i-na,, from various Jurassic

exposures in Montana, Wyoming, and North Dakota.

3. (and Tappan, Helen Nina). Foraminifera from the type Kiowa shale, 

LOWer Cetaceous, of Kansas : Kans. Univ. Paleont. Contr. no. 6,. Protozoa, art. 3, 15 p., illus., Feb. 24, 1950. "Twenty-seven species of

irox-aminife^, of wtioii eleven 0.^0 ^ew. a^e figured and described from

tllG LOWer CretaCeOUS KlOWa formation from tne type area in soutnern

Kansas. Methods of study are described, evidence is presented to suggeSt ft brackish water, near-shore origin for the Kiowa shale, and the

fauna is compared to that of the black shale facifiS Of the KiamiCW

foj.-ma.tion in northern Te:x:as ana southern Oklahoma."

Lofgren, Ben E. See Fix, P. F. 

Logan, Clarence August.

Mmo*. n r,<j .ninorai resources of Madera County, California: Calif. Jour. Mines and Geology, 1 46, HO, 4, p, WHOB, muoi ira. i»n -*- «~- ~

minevai resources include gold, silver, copper, natural gas, granite,

tungsten, iron, pumice, and other industrial minerals ana construction

materials. The mines and deposits are described, mapped, and tabulated. A bibliography is included. V. S.
BIBLIOGRAPHY 167

Logan, John A.

Clay foundation problem, Friant-Kern Canal, California [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1527, 1950.

Lohman, Stanley William. See Griswold, D. H.

Long, William A.

Glacial geology of the Wenatchee area, Washington [abs.]: Northwest Sci., 

v. 24, no. 1, p, 36, Feb. 1950.

Longley, William Warren.

North shore of the Saint-Lawrence from Mingan to Aguanish, Saguenay 

County: Quebec Dept. Mines, Geol. Surveys Br., Geol. Rpt. 42, pt. 1, 

30 p., illus. incl. geol. map, 1950. A reconnaissance report of the shore 

area along the St. Lawrence River between Mingan and Aguanish, opposite Anticosti Island. The area covers a distance of 85 miles. The 

pre-Cambrian and Ordovician rocks are described, and mineral occurrences with potential commercial value, such as feldspar and limestone, 

are noted.

Longwell, Chester Ray.

1. Tectonic theory viewed from the Basin Ranges: Geol. Soc. Am. Bull., v. 61, 

no. 5, p. 413-433, illus. incl. maps, May 1950. Tectonic theory and the 

tectonics of the Great Basin in the western United States are discussed 

using the evidence of sedimentation as shown in Paleozoic sections in 

Arizona, southern Nevada, and California, the record of deformation 

from Devonian to Recent time, and the record of igneous activity. The 

evidence shows that both orogeny and volcanic activity have moved 

eastward from the coastal belt. The implications of this evidence and 

its bearing on the wider problems of crustal deformation are considered. 

A bibliography"is given.

2. Charles Hyde Warren (1876-1950) : Am. Philos. Soc. Yearb. 1950, p. 328- 

333, 1951.

Lonsdale, John Tipton.

(and Maxwell, Ross Allan). Petrology of Big Bend National Park [Texas] 

[abs.]: Am. Mineralogist, v. 35, nos. 3-4,. p. 286, Mar.-Apr. 1950.

Lopez Ramos, Ernesto.

1. Geologia del subsuelo de tres pozos de exploraci6n al sureste de Poza Rica, 

Veracruz: Asoc. Mex. Ge61. Petrol. Bol., v. 2, no. 6, p. 381-395, illus., 

June 1950. Stratigraphic data obtained from three test wells in the 

southeastern part of the petroliferous Poza Rica area, Veracruz, Mexico, 

are given. Beds of Miocene through Cretaceous age were encountered. 

The columnar section of each well is given, relation to structure is indicated, and oil and gas potentialities are appraised briefly. V. S.

2. Secciones Cretacica y Jurasica al norte de Teziutlan, Puebla, Mexico: Asoc. 

Mex. Geol. Petrol. Bol., v. 2, no. 9, p. 549-555, illus., Sept. 1950. Describes and shows a cross section through Jurassic and Cretaceous 

strata a few miles north of Teziutlan, Puebla, Mexico.

Lorain, Sinclair Holt.

Investigation of manganese deposits in the Philipsburg mining district, Granite County, Mont.: U. S. Bur. Mines Rpt. Inv. 4723, 57 p. (t), illus. incl. 

geol. map, Oct. 1950. Brief descriptions of the regional geology and 

the ores are given, together with a geologic map of the area. Manganese occurs both as rhodochrosite and pyrolusite, associated with 

zinc-lead-silver ores. The ores are in Paleozoic sediments and are 

associated with tension fractures close to the contact of the granodiorite 

batholith.
168 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Lord, Clifford Symington.

(and Barnes, F. Q.). Second preliminary map, Aylmer Lake, Northwest Territories (map and descriptive notes) : Canada Geol. Survey Paper 50-10, 

8 p. ($), geol. map, 1950. The Aylmer Lake area, northeast of Great 

Slave Lake, Northwest Territories, contains pre-Cambrian volcanics, 

sedimentary rocks, and varied granitic intrusives. The rocks are 

mapped and briefly described, with attention to glaciation and economic 

possibilities. V. S.

Louderback, George Davis.

Faults and engineering geology, in Application of geology to engineering practice, Berkey Volume, p. 125-150, Geol. Soc. Am., New York, 1950. Faults 

and fault movements and their relation to engineering projects are described. Numerous specific examples are cited of problems encountered 

in dam and tunnel construction that are associated with faulting.

Lougee, Richard Jewett.

Glacial marine limit in Maine [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1569, Dec. 1950.

Love, John David.

1. Geologic map of Albany County, Wyoming: Wyo. Geol. Survey, 1935. Scale 

1 inch to 2 miles. This map, on a reduced scale of about 1 inch to 2.3 

miles, is included in U. S. Geol. Survey Circular 80, "Reconnaissance of 

the geology and ground-water hydrology of the Laramie Basin, Wyoming", by Robert T. Littleton, Nov. 1950.

2. (and Weitz, Joseph Leonard). Geologic map of part of southwestern Wyoming: Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, 1950. Scale 

1: 500,000 or about 1 inch to 8 miles.

3. Paleozoic rocks on the southwest flank of the Wind River Mountains, near 

Pinedale, Wyoming: Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, 

p. 25-27, geol. sketch map, 4950. Several outcrops of Paleozoic rocks 

in the area between New Fork Lake and the southeast end of the Wind 

River Range are described. With the geologic sketch map is a tentative 

cross section.

4. Upper Cretaceous section from southwestern Wyoming to Yeiiowstone 

National Park: Wyo. Geol. Assoc. Guidebook, Southwest Wyoming,

facing p. 48, 1950.

5. Oil and gas possibilities in post-Frontier Cretaceous rocks of Wyoming 

[abS,] I Oil and Gas Jour., v. 48, no. 51, p. 176-177, Apr. 27, 1950.

6. Petrography as an aid in dating Tertiary volcanic rocks [abs.j: Geol. Soc.

Am. Bull., V. 61, no. 12, pt. 2, p. 14S2, r>ee. 195O.

Lovering, Thomas Seward. See also Morris, H. T.

1. (and Goddard, Edwin Newell). Geology and ore deposits of the Front 

Range, Colorado: U. S. Geol. Survey Prof. Paper 223, 319 p., illus. tnci. 

geol. maps, 1950. A comprehensive description and discussion of the 

geology of the Front Range in Colorado from a regional point of view. 

Data on the individual mining districts are presented with emphasis on 

their place in the regional picture. The importance of structure in 

interpreting the regional geology is stressed. Numerous mine maps and sections are included.

2. The geochemistry of argillic and related types of rock alteration, in Applied

geology, a symposium: Colo. School of Mines Quart., v. 45, no. IB, p.

231-26O, illus., Jan. 195O. A detailed discussion of the processes, chemistry, factors, and characteristics of rock alteration, baSQd OH eipeil- naeiitm woi-k on synthesis nnd solution o* mineTsxls and field investisatiOnS Of hot-spring alteration, A bibliography is included.

3. [Discussion of alteration and its application to ore search], in Applied 

geology, a symposium: Colo. School of Mines Quart., v. 45, no. IB, P.

' QS1.-QS2. 320-221, 325-327. Jan. 1950.
BIBLIOGRAPHY

Lovering, Thomas Seward Continued

4. (and Huff, Lyman Coleman, and Almond, Hy). Dispersion of copper from 

the San Manuel copper deposit, Final County, Arizona: Econ. Geology, 

v. 45, no. 6, p. 493-514, illus., Sept.-Oct. 1950. The San Manual copper 

deposit, near Tueson, Arizona, was chosen for a geochemical investigation of the dispersion pattern produced by weathering in a desert climate. 

Analysis showed very little copper in the ground water, run-off, or in 

plants. Analysis of soil and alluvium, combined with upstream and 

upslope sampling, appears to be one of the best means of copper prospecting in a desert environment.

5. East Tintic district [Utah] geologic picture changed [abs.] : Min. Cotfg. 

Jour., v. 36, no. 10, p. 78, Oct. 1950.

Lowdermilk, Walter Clay.

(and Bundling, H. L.). Erosion pavement, its formation and significance: 

Am. Geophys. Union Trans., v. 31, no. 1, p. 96-100, illus., Feb. 1950; discussion by L. C. Peltier, v. 32, no. 3, p. 466-467, June 1951. Experiments 

show that the formation of an "erosion pavement", an accumulation of 

rock fragments at the soil surface, is due to accelerated erosion, representing deviation from the geologic norm of erosion established by a 

complete vegetation cover. V. S.

Lowe, Kurt Emil.

Storm King granite at Bear Mountain, New York: Geol. Soc. Am. Bull., v. 61, 

no. 3, p. 137-190, illus. incl. geol. map, Mar. 1950. "The Storm King 

granite at Bear Mountain, New York, occupies the core of a syncline in 

the earlier crystalline complex of the Hudson Highlands. It is part of a 

larger synclinal pluton whose accordance with the northeast-plunging 

structure is shown by conformable contacts and mineral alignment in 

both the granite and the country rocks. Reasonably constant mineral 

composition, flow structures of early hornblende crystals, and inclusions 

confined to the margins of the granite body indicate magmatic intrusion. 

Absence of secondary foliation and lack of tectonic fabric patterns in 

the granite suggest post-tectonic emplacement." The petrography, 

petrology, and structural geolog'y are discussed. Petrofabric analyses 

and a bibliography are included.

Lowenstam, Heinz Adolf. See also Urey, H. C., 1.

1. Niagaran reefs in Illinois and their relation to oil accumulation: Oil and 

Gas Jour., v. 48, no. 43, p. 48^19, 77, illus., Mar. 2, 1950. A summarized 

version of the article of the same title which appeared as Illinois State 

Geological Survey Report of Investigations No. 145, 36 p., 1949.

2. Niagaran reefs of the Great Lakes area: Jour. Geology, v. 58, no. 4, p. 430- 

487, illus., July 1950. A comprehensive treatment of the Silurian reefs 

in the Great Lakes area, covering numerous aspects of reef growth. 

Among these are definition, biologic potential, shape, height, substrata, 

growth, spread, pattern of distribution, and climate. Although the true 

reef nature of the Niagaran structures has been questioned, it is shown 

that they exhibit all the basic properties of reefs.

Lowman, Shepard Wetmore. See Rolshausen, F. W.

Lucas, Elmer Lawrence.

1. The petrographic character of some tourmaline and zircon detritals: Okla. 

Acad. Sci. Proc., v. 29 (1948), p. 44-45, Mar. 1950. Authigenic secondary growths have been found on both tourmaline and zircon detrital 

grains in Pennsylvanian sandstone in Oklahoma. Their color, shape, 

optical orientation, and attachment are described briefly. V. S.

2. Petrographic study of Pennsylvanian sandstones in Murray County, Oklahoma [abs.] : Oil and Gas Jour., v. 48, no. 51, p. 178-179, Apr. 27, 1950.

Ludlum, John Charles.

Sedimentation features of the Upper Silurian limestones in West Virginia 

[abs.]: W. Va. Acad. Sci. Proc., v. 22, p. 97, 1950; with title Significance 

of rhythmic sedimentation of the Upper Silurian limestones of West 

Virginia; Geol. Soc. Am. Bull., v. 61, no. 12, pt 2, p. 1483, Dec. 1950.
170 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Ludwick, John C. See Krumbein, W. C., 3; Meriard, H. W., Jr., 4.

Lugn, Alvin Leonard.

Duration of the Pleistocene period [abs.] : Nebr. Acad. Sci. Proc., 60th Ann. 

Mtg., p. 15, May 1950.

Lukesh, Joseph Stevens.

(and Pauling, Linus Carl). The problem of the graphite structure [abs.J : 

Am. Mineralogist, v. 35, nos. 1-2, p. 125, Jan.-Feb. 1950.

Luna, J.

(and Munoz, Frank J.). El campo petrolero de Poza Rica: Asoc. Mex. Ge61. 

Petrol. Bol., v. 1, no. 1, p. 35^46, illus., Nov. 1949. The Poza Rica oil 

field, Veracruz, produces from Tamabra limestone of Cretaceous age. 

Structure is anticlinal. Associated lenticular sandstones of the Chicontepec Velasco formation have shown oil and gas. Exploitation is 

described. ' V. S.

Lundahl, Arthur C.

(compiler). Symposium of information relative to uses of aerial photographs 

by geologists: Photogrammetric Engineering, v. 16, no. 5, p. 721-806, 

illus., Dec. 1950. Contains papers by F. A. Melton, Curt Teichert and 

R. W. Fail-bridge, F. P. Shepard, S. A. Wengerd, H. T. U. Smith, Louis 

Desjardins, and H. R. Wanless.

Lundberg, Hans.

1. Airborne electrical surveys for regional studies in oil and ore prospecting: 

Canadian Min. Met. Bull. no. 456, p. 190-192, illus., Apr. 1950; Canadian 

Inst. Mining and Metallurgy Trans., v. 53, p. 130-132, 1950. The new 

airborne electromagnetic apparatus, inducing secondary alternating 

magnetic fields in conducting bodies in the ground and recording field 

amplitudes and phases, gives data on the extent and depth of these 

bodies. The principles of the instrument and test flights are described, 

and the interpretation of records and application of the method are 

discussed. . V. S.

2. Current trends and progress in mining geophysics: Colo. Sen. Mines Quart., 

v. 45, no. 4A, p. 41-47, Oct. 1950. Developments in aviation, electronics, 

and aerial photography have made geophysical exploration for ore 

deposits by airborne operations possible. The cost, time required, and 

results of air-borne and ground operations are compared.

Lunde, M.

Preliminary report on the Grondines map-area, Guam-plain, Portneuf, Lavioiette,

NiCOlet, and Lotbiniere Counties ; Pt. 2, Pre-Cambrian section: Quebec

Dept. Mines Geol. Surveys Br., Prelim. Rpt. 237, p. 3-6 ($), geol. map,

195O. Brief notes on the pre-Cambrian rocks and structure in the 

Grondines area, 4O miles west of Quebec City.

Lupton, Benjamin Charles.

Santa Maria region [Calif.], in Symposium on possible future on provinces of

the Pacific Coast region [abs.]: Am. Assoc. Petrol. Geol. Bull., v. 34, no.

Lyden, Joseph P.

1. Aspects Of Structure and mineralization used as guides in the development

of the Picher field: Min. Eng., v. 187, no. 12, p. 1251-1259, illllS., D0C.

lorso; A- i. JM. * :- n-^o. c,s. v. is-7. n.or.O. < !,, i-i:, e iMefae-r- field [Kansas- Oklahoma], structure made openings for tne circulation or me mineralizing solutions by flexing, shearing, and fracturing the sedimentary beds. Tliis structure is used witn tne spatial a»a genetic relationship Of the

ore minerals, sphalerite and galena, and the gangue minerals, dolomite anQ jaispcroia, m.proepettw^g *°* ««= *>*>*!<**. ^

2. Structure and mineralization maps as a guide to mining in the PlCner 

mining field [abs.]: Econ. Geology, v. 45, no. 4, p. 385, June-July 1950.

Lynd, L. E. See Moore, C. H., Jr. 

Lynn, Ralph D. See Ricker, N.
BIBLIOGRAPHY 171

Lyons, Paul L.

A gravity map of the United States: Tulsa Geol. Soc. Digest, v. 18, p. 33-43, 

illus., 1950. Describes and shows a regional Bouguer anomaly gravity 

map of the United States based on previously published sources and data 

supplied by the Carter Oil Company.

Lytle, William S.

1. Crude oil reserves of Pennsylvania: P.a. Geol. Survey, 4th ser., Bull. M 32, 

256 p., illus., 1950. A compilation of statistical data on the oil reserves 

of Pennsylvania, accompanied by a map of the oil fields in the state.

2. Crude oil reserves of Pennsylvania, .in Symposium on mineral resources of 

 Pennsylvania: Pa. Acad. Sci. Proc., v. 24, p. 203-207, 1950. The oil 

reserves, as of January 1947, are tabulated by county and in other ways. 

Total oil in place is estimated at 2,734,434,000 barrels.

McAndrew,.John. See Peacock, M. A., 1. 

McAnulty, William Noel. See Stovall, J. W., 3.

McAtee, J. L.

(and Milligan, W. O.). X-ray diffraction examination of synthetic mullite: 

Texas Jour. Sci., v. 2, no. 2, p. 200-205, illus., June 30, 1950. An investigation by X-ray investigation of the conditions of formations and the 

effect of impurities in mullite prepared by heat treatment of aluminasilica gels.

McAuslan, Edward R. See Donnerstag, P. 

MacCallum, D. See Shaw, G., 1, 2.

McCampbell, John Caldwell.

Some employer requirements in the education of petroleum geologists: Compass, 

v. 28, no. 1, p. 6-9, illus., Nov. 1950. Briefly summarizes the information 

obtained from a questionnaire sent to employers of geologically trained 

people in the petroleum industry. The results indicate not only the 

amount and type of geological'course work, but also other desirable 

qualifications.

McCanne, Holland W.

Kecent discovery and development of oil and gas reserves along the east flank 

of the Julesburg Basin: Mines Mag., v. 40, no. 10, p. 25-32, 36, 74, illus., 

Oct. 1950. Describes the recent activities of the Ohio Oil Company in 

developing oil and gas in Cheyenne County, Nebraska, on the eastern 

flank of the Julesburg basin. The discovery marks the first production 

from the Cretaceous in Nebraska.

McCarver, Holland C. See Taylor, S. J.

McClellan, Hugh Wallace.

(and Haines, Richard Bower.). San Miguelito oil field [Calif.] [abs.]: Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 12, p. 2380, Dec. 1950.

McClelland, W. R.

Notes on antimony deposits and occurrences in Canada: Canada Bur. Mines, 

Mineral Res. Div., Memo, series, no. 108, 20 p. (J), Apr. 1950. Thirty-six 

deposits in Newfoundland, Nova Scotia, New Brunswick, Quebec, British 

Columbia, and Yukon are described "briefly. A bibliography is given.

V. S. 

McCollum, S. V. See Imbt. R. F.

McConnell, Duncan.

1. (and others). Petrology of concrete affected by cement-aggregate reaction, 

in Application of geology to engineering practice, Berkey Volume, p. 

225-250, illus., Geol. Soc. Am., New York, 1950. Describes the investigation of concrete deterioration by petrographic and petrologic methods, 

and discusses the process of reaction between the aggregate and cement. 

The potential behavior of concrete aggregate can be predicted by 

petrographic examination.
172 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

McConnell, Duncan Continued

2. The petrography of rock phosphates: Jour. Geology, v. 58, no. 1, p. 16-23, 

illus., Jan. 1950. Gives data on 38 minerals that occur in rock phosphates. A bibliography is appended. V. S.

3. The crystal chemistry of montmorillonite: Am. Mineralogist, v. 35, nos. 3-4, 

p. 166-172, illus., Mar.-Apr. 1950. The hypothesis that hydroxyl ions can 

substitute for silicon-oxygen groups in the tetrahedral layers of. montmorillonite is proposed in modification of the Hofmann-Endell-Wilm 

structure. It may explain the variable excess of high-temperature 

water and other thermochemical properties, particularly base-exchange 

capacity and thermal behavior. , V. S.

4. Crystal chemistry of montmorillonite. 2. Calculation of the structural 

formula [abs.]: Geol. Soc. Am Bull., v. 61, no.. 12, pt. 2, p. 1485, Dec. 1950.

Macdonald, Gordon Andrew. See also Finch, R. H., 1, 2, 5; Shepard, F. P., 1.

1. (and Orr, James B.). The 1949 summit eruption of Mauna Loa, Hawaii: 

U. S. Geol. Survey Bull. 974-A, p. 1-33, illus., 1950. The summit eruption of Mauna Loa, Hawaii, January-May 1949, is described as regards 

the lava extrusion, eruptive products, and accompanying disturbances.

 The three phases typical of past eruptions were clearly observable

again. V. S.

2. (and Finch, Ruy Herbert). Origin of Puehu cinder cone, Kau: Volcano 

Letter, no. 507, p. 2-3, Jan.-Mar. 1950. Puehu cinder cone on the 

southern slope of Mauna Loa, Hawaii, is a primary cone formed by 

eruption at a lava vent during late Pahala time and probably belongs in 

the Hilina volcanic series of Kilauea volcano. Classification as a littoral cone of the Kau volcanic series is disproved. V. S.

3. (and Finch, Ruy Herbert). The June 1950 eruption of Mauna Loa; Part 2, 

Special features: Volcano Letter, no. 509, p. 1-6, illus., July-Sept. 1950. 

The special features described are lava flows, temperature measurements, radiation studies, tilting of the ground, harmonic tremor, earthquakes, and the absence of littoral explosions. See Finch, R. H. 2, for 

Part I of the report on the Mauna Loa volcanic eruption, Hawaii, June 

1, 1950.

Macdonald, James R.

1. A note on the age of the Truckee formation: Am. Jour. Sci., v. 248, no. 8, 

p. 581-583, Aug. 1950. Reports the occurrence of mammalian remains in 

the Truckee formation at Brady Pocket, 10 miles north of U. S. Highway

40 on the Brady Hot Springs-Nightingale road, Nevada. This evidence 

points to a Lower Pliocene age, but it is noted that the Truckee formation may transgress time boundaries and that the exposures which h.i\-e

yielded fossils may be of different ages.

2. A new species of Nimravus from the upper Oligocene of South Dakota: Jour.

Paleontology, v. 24, no. 5, p. 601-603, illus., Sept. 1950. Describes a new 

Species Of cat, 'Nimravus altidens, identified on the basis of portions of 

the jaw, and discusses its relation to other species. The new species

occurs in the Proto'ceras sandstones of tipper Oligocene age and is the

oldest known species of Nimravus from -South Dakota.

-ell, Alfred NParker, TraviS ? ) Notes on the construction or geologic scale models-.

Mines Mag., v. 40, no. io, p. 75-79, illus., Oct. 1950. Describes the

planning and constimction of a. laboratory model of a salt dome, as an

example of the work on models Of geologic features currently in progress

«.t ftv, 0 _*>._ &. :M. College of Te^cns.

McElvenny, Linden T.

(and Smith, Matthew Clair, and McElwalne, Robert Berentz). Investigation 

of southwestern Arkansas mercury district, Howard, Pike, and Clark

Counties, -A-rls. : tj. s. u«r . Minos Hr>t- Inv. 4737. 25 x>. C*> illii^ Oct 1950. Cinnabar is the chief ore mineral, and the deposits are found in

the Gap Ridge sandstone member of the Stanley shale and in the Jackfork sandstone, both of Pennsylvanian age. The general structure o"f 

the area and the distribution of the ore are described.
BIBLIOGRAPHY 173

McElwaine, Robert Berentz. See McElvenny, L. T.

Macelwane; James Bernard.

Survey of geophysical education in the United States and Canada in 1948: 

Geophysics, v. 15, no. 2, p. 257-263, Apr. 1950. Report of the Committee 

on geophysical education of the Society of Exploration Geophysicists, 

in which courses offered at colleges and universities are tabulated. V. S.

McFadden, W. A., Jr.

Review of seismic and gravity exploration of Delaware Basin [Texas] [abs.]: 

Oil and Gas Jour., v. 49, no. 32, p. 102, Dec. 14,1950.

McFall, Rex Lewis.

East-west cross section of northwest Runnels and northeast Coke Counties, 

Texas: Abilene Geol. Soc., Geol. Contr., p. 68-69, illus., 1950. The section consists of a correlation of six electric logs.

McGaha, S. W. .

1. Radioactivity dictionary: Tomorrow's Tools Today, v. 16, no. 4, p. 4-11, 34, 

illus., Fourth Quarter 1950. "Describes briefly the subsurface formations encountered during logging operations and illustrates the behavior 

of the gamma ray-neutron curves." Curve values are maximum, minimum, intermediate, or extreme.

2. (and Terry, J. M.). Greater Seminole area of Oklahoma: Tomorrow's 

Tools Today, v. 16, no. 4, p. 28-31, Fourth Quarter 1950. The values for 

gamma ray and neutron logging in the Ordovician, Silurian-Devonian, 

Mississippian, and Pennsylvanian strata are given.

McGee, Dean Alexander.

(and Seale, Tom, and Finley, Jean Carson). Oil in the Gulf of Mexico [abs.]: 

Okla. Acad. Sci. Proc., v. 29 (1948), p. 60-61, Mar. 1950.

McGerrigle, Harold William.

The geology of eastern Gasp6: Quebec Dept. Mines, Geol. Surveys Br., Geol. 

Rpt. 35, 168 p., illus. incl. geol. maps, 1950. The area described is in 

.eastern Quebec, between the St. Lawrence River and Chaleur Bay. The 

formations, Cambrian through Carboniferous in age, and their structure 

are described particularly with a view to the petroleum possibilities of 

the region. Five detailed geological maps of the area are included, 

together with a generalized map of the entire peninsula, and several 

cross sections.

MacGillavry, Caroline H. See Kinsolving, M. R.

McGowen, N. C.

Natural gas and natural gas liquid reserves in the U. S.: World Oil, v. 130, no. 

7, p. 140, June 1950. A summary of the findings of the Committee on 

natural gas reserves of the American Gas Association. As of December 

31, 1949, the proved reserves are 180.4 trillion cubic feet, a net increase 

of 6.5 trillion cubic feet over the proved reserves at the beginning of the 

year. The net increase since December 31, 1945, has been 32.6 trillion 

cubic feet. Approximately 82 percent of the reserves are in New Mexico, 

Texas, Oklahoma, Arkansas, Louisiana, and Mississippi.

McGrain, Preston.

Preliminary report on the thickness of glacial drift in the upper Wabash drainage basin [abs.]: Ind. Acad. Sci. Proc., v. 59, p. 214-215, 1950.

MacGregor, Archibald Gordon.

Prediction in relation to seismo-volcanic phenomena in the Caribbean volcanic 

arc.: Bull. "Volcanologie (Assoc. Volcanologie Union Ge"od<§sique G6ophysique Internationale), se'r. 2, v. 8, p. 69-86, illus., 1949. "A compilation of a review of evidence potentially useful for predicting the time 

and place of future earthquakes, soufriSre activity or volcanic eruptions 

in this part [Caribbean volcanic arc] of the West Indies." A table of 

seismo-volcanic activity in the Lesser Antilles within historic time is 

included.

980682° 52 12
McGrew, Paul O.

Tertiary vertebrate fossils of the Green River Basin: Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, p. 68-74, illus., 1950. Reviews the vertebrate 

forms that have been found in the Knight formation, Green River formation, Cathedral Bluffs tongue, and Bridger formation Eocene formations 

present in the Green River Basin of southwestern Wyoming.

 McGuirt, James Holland. See Colle, J. O.

Macintosh, Charles G.

(and Thomson, James Edgar). Geology of the Sylvanite mine: Ontario Dept. 

Mines Ann. Rpt, 1948, v. 57, pt. 5, p. 177-183, illus., 1950. Describes the 

development, general geology, structure, ore mineralization and wall-rock 

alteration at the Sylvanite gold mine in the Kirkland Lake area, northern 

Ontario.

Mclntosh, Franklin G.0

Rare gem minerals of America : Mineralogist, v. 18, no. 12, p. 604, 606, 608, 610, 

612, 614, Dec. 1950. Reprinted from the Oregon Mineralogist, v. 2, no. 7, 

p. 3-4, 30, July 1934 ; no. 8, p: 5-6, 21, Aug. 1934.

MacKay, Bertram Reid.

1. Atlas, coal areas of Alberta. Canada Geol. Survey [1949]. The atlas contains 50 geological maps of coal areas in Alberta, an index map, and a 

map showing relation of mining locations to geological formations. 

Tables of data for each coal occurrence are included.

2. Atlas, estimate of reserves of Sydney coalfield, Cape Breton Island, Nova 

Scotia. Canada Geol. Survey [1949?]. The atlas contains 13 maps 

showing data on reserves in various seams of the Sydney coal field.

McKee, Edwin Dinwiddie.

1. Isopach studies in Arizona and adjoining areas [abs.] : Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1557, Dec. 1950.

2. Opportunities for petroleum development in Arizona [abs.] : Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 12, p. 2379-2380, Dec. 1950.

McKelvey, Vincent Ellis. See also Cady, W. M., 3.

1. The field of economic geology of sedimentary mineral deposits, in Applied 

sedimentation, p. 485-505, 1950. Sedimentary mineral deposits of economic value form 36 percent of the total value of mineral production in 

the United States according to 1946 figures. The various types of de- posits and the minerals are given in tabular form, prospecting for,

appraisal and development of, and other problems Connected With S6dlmentary mineral deposits are discussed.

2. (and Nelson, John Marshall). Characteristics of marine uranium-bearing Sedimentary rocks : Econ. Geology, v. 45, no. i, p. 35-53, Jan.-Feb. 1950.

Marine Wack shales and phosphorites generally contain O.oi to 0.02 percent uranium and may prore to be an economic scmrce. otter mao^nlftT^^Ife1 ^^^^^

3. (and others), Value of domestic production of ^jf1 ' j

classes of rocks: Econ. Geology, V. 45, DO. 5, P. 47lH7t),

StatlStlCS On the ValUe Of mineral production from the various classes of

iE?,-11^ states in 194e are discussed. Fluids and sedimentary LU LVyVl 1**3 tV»;»<l_ O.<5 ^r>*^ « - -^ f~ -m-t t- -,-f* .___!- I .p 4-V, J-* ,,,000, with fuels accounting forlTpefcent ortoi'

of all minerals produced, classified by rock type, is included.

.___ .

of $7,500,000,000, with fuels accounting forTpefcent

f all mineral

McKenney, J. Wilson.

He named Lake Cahuilla : Desert Mag., v. 10, no. 5, p. 11-13, illus. incl. port., 

Mar. 1950. Biographical sketch of William Phipps Blake, 1826-1910.

Mackin, Joseph Hoover.

1. Engineering geology of West Seattle: Trend in Engineering at the University of Washington, v. 1, no. 3, p. 24-26, illus., July 1949. The general 

geology and ground water relationships in their bearing on the Alki 

Avenue slide problem are discussed.
. - BIBLIOGRAPHY 175

Mackin, Joseph Hoover Continued

2. The down-structure method of viewing geologic maps: Jour. Geology, v. 58, 

no. 1, p. 55-72, illus., Jan. 1950. The method consists in viewing geologic 

maps down the slope of inclined planes, surface traces of which are the 

contact lines on the map, so as to see map patterns as structures. It is 

illustrated by applications to a simple plunging monocline and a recumbent fold, showing the difference between map-pattern trends and 

true structural trends. V. S.

3. (and Nelson, Willis H.). Early Tertiary welded tuffs in the Iron Springs 

district, Utah [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1528, Dec. 

1950.

McKinley, Glenn Ernest.

A discussion of red granites [abs.]: N. C. Acad. Sci. Proc. in Elisha Mitcheli 

Sci. Soc. Jour., v. 66, no. 2, p. 117, Dec. 1950.

McKinney, Charles R. See Urey, H C., 1.

McKinnon, Frederick Allan.

Northwest Territories and Norman Wells [abs.]: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 11, p. 2252, Nov. 1950.

McKinstry, Hugh Exton.

[Discussion]: Eng. Min. Jour., v. 151, no. 4, p. 119-120, Apr. 1950. Comments 

on "Sedimentary strata experience can aid in rock-burst study" by R. W. 

Wnerker, Eng. Min. Jour., v. 150, p. 61-64, June 1949, in which questions 

are raised on the interpretation of the stresses and resulting rock failure.

Mackle, Vincent D.

Phases occurring after the initial P phase in earthquakes: Earthquake Notes, 

v. 21, no. 4, p. 29-31, Dec. 1950. Explanations are proposed for the 

existence of a phase following the initial P phase which has been observed in the seismograph records of earthquakes in Mexico, the West 

Indies, and off the northwest coast of the United States..

McKnight, Edwin Thor. See Behre, C. H., Jr., 2. 

MacLaren, A. S. See Canada Geological Survey, 22. 

McLaren, Digby Johns. See deWit, R.; Barker, P.

McLaughlin, Dean Benjamin.

1. A suggested correlation of Triassic areas of the eastern United States: Pa. 

Acad. Sci. Proc., v. 24, p. 161-169, 1950. The correlation of beds of the 

Newark group, from localities in Massachusetts, Connecticut, New York, 

New Jersey, Pennsylvania, Virginia, and North Carolina, is shown in 

three tables and discussed.

2. A contact of the Sibley series with the basement complex [Ont.] [abs.]: 

Royal Soc. Canada Proc., 3d ser., v. 44, p. 227,1950.

McLaughlin, Donald Hamilton.

1. Research in the mineral industries: Black Hills Engineer, v. 29, no. 2, 

p. 32-36, Nov. 1949. An address, delivered at the South Dakota Conference on Industrial Research, October 1949, of which a part is devoted 

to a discussion of the place of geology in ore exploration.

2. The Homestake mine: Geol. Assoc. Canada Proc., v. 2, p. 27-35, Apr. 1950; 

reprinted from Canadian Min. Jour., v. 70, no. 12, p. 49-53, Dec. 1949. 

Brief summary of the stratigraphy, structure, mineralization, and ore 

bodies in the Homestake gold mine, South Dakota.

McLaughlin, Kenneth Phelps.

1. (and Enbysk, Betty B.). Middle Cambrian trilobites from Pend-Oreille 

County, Washington: Jour. Paleontology, v. 24, no. 4, p. 466-471, illus., 

July 1950. Trilobites from the Metaline limestone of Pend Oreille 

County, Washington, including the genera Bathyuriscus, Elrathia, 

Elrathina, Olenoides, Ogygopsis, and Taxioura, are described. The 

Middle Cambrian age of the formation is substantiated; it appears to 

be in part equivalent to the Burgess shale member of the Stephen 

formation of British Columbia. V. S.
176 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

McLaughlin, Kenneth Phelps Continued

2. (and Simons, Merton B., and Wood, William H.). Preliminary paleontologic 

report on the Paleozoic of northeastern Washington [abs.] : Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1539-1540, Dec.,1950.

3. (and Honkala, Fred S.). Problems of the Wells and Brazer formations in 

southeastern Idaho [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1560; Dec. 1950.

McLaughlin, Thad Gerald.

Ground water in the Julesburg area, Colorado: Colo. Water Conserv. Bd., 

Ground Water Ser., Circ. 1, 20 p. (I), illus., July 1948. The rocks outcropping in the Julesburg area, Colorado, are chiefly clays, sands, and 

gravels of Tertiary age overlain by alluvium and terrace deposits of 

Quaternary age. Ground water in moderate to large quantities is 

found only in the alluvium and possibly in a porous zone in the Brule 

clay. ° V. S.

McLean, James Douglas, Jr.

1. A summary of the foraminiferal guide fossils for the Atlantic Coastal 

Plains region between New Jersey and Georgia. 3 sheets ($). Published by the author, Alexandria, Virginia, 1949. Sheet 1 contains 

notes on the Foraminifera from New Jersey, Delaware, Maryland, 

Virginia, North and South Carolina, and Georgia. Sheet 2 lists the 

guide Foraminifera with the literature reference. Sheet 3 is a preliminary correlation chart of the species for Maryland, Virginia, and 

the Carolinas.

2. Card catalogue of American Foraminifera. Published by the author. Alexandria, Virginia, 1950. A continuing catalogue, issued in sets of 50 

cards each, of diagnostic species of American Gulf Coast foraminiferal 

zones. Two sets have been issued to the end of 1950.

3. Later Tertiary foraminiferal zones of the Gulf Coast. 20 p. (t). Published 

by the author, Alexandria, Virginia, 1950. A tabulation of the Upper 

Tertiary foraminiferal guide zones of the Gulf Coast area. A selected 

bibliography of 105 references constitutes the source material from 

which, for each zone, the citations, species, and pertinent quotations 

are given.

4. Stratigraphic study of well at Crisfield, Somerset County, Maryland: Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 1, p. 133-138, Jan. 1950. Cretaceous, 

Tertiary, and Recent stratigraphy, as shown in the 1302-ft. Crisfield well, 

is outlined, and Foraminifera new for Maryland are listed. Comparison 

with data from the nearby Bradshaw well indicates that local Pleistocene thickness is more variable than supposed. V. S.

McLearn, Frank Harris.

(and Kindle, Edward Darwin). Geology of northeastern British Columbia:

Canada Geol. Survey Mem. 259, 236 p., illus. incl. geol. maps, 1950. A

comprehensive report covering the physical features, stratigraphy, structure, paleogeography, and economic geology of the northeastern section

of British Columbia. A partial geologic map of the area, on a scale of

one inch to 10 miles, and several smaller geologic maps of specific areas,

inolutlecl.

McMurdie, Howard Francis.

(and Sullivan, Barbara, and Mauer, Floyd A.). High-temperature X-ray

study of the MiuO^FeA system [abs.]: Am. Ceramic Soc. Bull., v. 29,

no. 3, r>. 32S, MOT. TtOBO..

McMurray, Lynn Lloyd. See Van Horn, E. 0. 

McNair, Andrew Hamilton. See Kurtz, V. B.; Wheeler, H. B., 2. 

John Di See norner, g. E,
BIBLIOGRAPHY 177

MacNeil, Francis Stearns.

Pleistocene shore lines in Florida and Georgia: U. S. Geol. Survey Prof. Paper 

221-F, p. 95-107, illus., 1950. Four marine terraces and shore lines are 

recognized, described, and correlated. The study was originally undertaken to show possible relationship between Pleistocene terraces and the 

land pebble phosphate deposits. It is concluded that no such relation- 

 ship exists, and that the evidence for Pliocene age is much stronger than 

that for Pleistocene age.

McNuIty, Charles Lee, Jr. See Hussey, K. M., 1.

McTaggart, Kenneth Cunningham.

Keno and Galena Hills, Yukon (two maps) : Canada Geol. Survey Paper 50- 

20,1950. Two geological maps of adjoining areas, Keno Hill and Galena 

Hill, in central Yukon, 220 miles north of Whitehorse, on a scale of 1 

inch to 1,000 feet. Descriptive notes on the rocks and mining properties 

are given. Lead and silver are the principal ores.

Maddox, David C.

Use of two-color column in graphic logs: Am. Assoc. Petrol. Geol. Bull., v. 34, 

no. 4, p. 782-784, Apr. 1950. A five-section well log, with standardized 

color scheme and symbols, is described.

Maddox, Gerald C.

Stratigraphy and oil possibilities of the marine Permian and Pennsylvanian 

in northwestern Oklahoma [abs.] : Am. Assoc. Petrol. Geol. Bull., v. 34, 

no. 3, p. 620, Mar. 1950.

Magnusson, Adelynn". See also Burr, A. C.

Sulfur in North .Dakota lignite: N. Dak. Acad. Sci. Proc., v. 3, 1949, p. 18-21, 

Jan. 1950. Sulfur content, as sulfate, pyritic, and organic forms, is 

given for 11 samples of lignite. The total amount ranges from 0.20 to 

1.0 percent.

Maher, John Charles.

1. Pre-Pennsylvaniau rocks along the Front Range of Colorado: U. S. Geol. 

Survey Oil and Gas Inv. Prelim. Chart no. 39, 1950. The Ordovician 

and Mississippian strata are described and various sections are given. 

Three cross sections, one along the Front.Range and two extending eastward from the Range to the Kansas border are shown.

2. Detailed sections of pre-Pennsylvanian rocks along the Front Range of 

Colorado: U. S. Geol. Survey Circ. 68, 20 p. (t), illus., June 1950. 

Twelve detailed sections of pre-Pennsylvanian rocks outcripping along 

the Front Range of Colorado, based on microscopic laboratory examination of samples, are presented. A table shows the previous and present 

classification of formations used and correlates them with the subsurface 

units of eastern Colorado. V. S.

Main, Frederic H.

Structure and stratigraphy of the Inde-Cieneguillas district, Durango, Mexico 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1483, Dec. 1950.

Main, Margaret S. See also Kerr, P. F., 3.

Occurrence and microscopic examination of reference clay mineral specimens, 

Pt. 2k Microscopic examination: Am. Petrol. Inst. Project 49, Clay 

Mineral Standards, Prelim. Rpt. 5, p. 15-57, illus., Apr. 1950. Notes on 

the origin, composition, impurities, and history of typical clay specimens 

from various localities in the United States.

Malaise, Rene.

The constriction theory: Earth Sci. Digest, v. 4, no. 8, p. 3-10, illus., Mar. 

1950. The theory, first published in 1934 by N. H. Odhner, accounts for 

vertical crustal movements through shrinking and expansion caused by 

temperature changes. A brief summary, extracted from a book to be 

published in Sweden, applies the theory to orogeny, earthquakes, and 

volcanism with reference to Atlantis. V. S.
178 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Maldonado-Koerdell, Manuel.

1. Sobre el hallazgo de Rhynclwnella lacunosa (Quenstedt), Aucella sp. y otros 

f6siles en la Sierra de Cruillas, Tamps., Mexico: Soc.. Mex. Geog. Est. 

Bol., v. 66, nos. 1-2, p. 93-107, illus., July-Oct 1948. The finding of 

Rhynchonella lacunosa, Aucella sp., and other forms in the Sierra de 

Cruillas, Tamaulipas State, Mexico, permits correlation with strata in 

the Sierra de la Catorce, San Luis Potosi, and in the Sierra Madre 

Oriental, Tamaulipas. Similarity of paleogeographic and paleoecologic 

conditions during Upper Jurassic time is indicated. Columnar sections 

of each region are given.

2. Nueva equisetal del Cretacico Superior de Coahuila, Mexico: Asoc. Mex. 

Geol. Petrol. Bol., v. 1, no. 1, p. 27-34, illus., Nov. 1949. Describes a 

new species, Neocalamites barcenai, from Upper Cretaceous strata in 

Coahuila Province. V. S.

3. Peces fosiles de Mexico: II. Dipnoos, ganoides y teleosteos: Soc. Mexicana 

Historia Nat. Rev., tomo 10, nos. 1-4, p. 241-246, illus., Dec. 1949. Continues the catalog of fossil fish occurrences in Mexico, listing eight 

specimens from the Cretaceous.

4. Los estudios paleobotanicos en M6xico, con un catalogo sistematico de sus 

plantas fosiles (excepto Tallophyta y Bryophyta) : Mexico Univ. Nac., 

Inst. Geologia, Bol. 55, 72 p., 1950. . The catalog of fossil plants is 

arranged alphabetically by genus and species, and also includes a section showing stratigraphic distribution and taxonomic distribution. A 

bibliography is given, and a re"sume" of paleobotanical studies in Mexico.

5. El tiempo en la geologia: Petroleos Mexicanos, no. 77, p. 1-24, Jan. 1950. 

A general discussion of geologic time and the various methods of measuring it both in absolute and relative terms. Two tables are included 

one of the geologic periods and one showing relation of the Pleistocene 

glacial periods to human culture. E. I.

6. Otro ejemplar de Prionotropis wooiyari (Mantell)? var. mexicana Bpse y 

fosiles asociades del Estado de Coahuila, Mexico: Ciencia, v. 10, nos. 

3-4, p. 92-94, illus., May 5, 1950. Discusses the finding of another 

specimen of the cephalopod, Prionotropis woolgari var. mexicana from 

the Upper Cretaceous beds in Arroyo de la Leona, near the Rio Bravo, 

in northern Mexico.

7. Otro equinoide y tin braquiopodo del Cretacico Medio inferior del Estado de

Colima (Mexico); Ciencia, v. 10, nos. 7-8, p. 206-208, illus., Oct. 15,1950.

Describes specimens of Tetrar/ramma sp. and Kinyena wacoensis, from 

the Middle Cretaceous of the State of Colima, Mexico.

Mallams, Paula. See Tanner, W. F., 2.

Malott, Clyde Arnett, 1887-1950.

The swallow-holes of Lost River, Orange County, Indiana [abs.] : Iiid. Aead. 

Sci. Proc., v. 59, p. 214, 195O.

Mamay, Sergius Harry.

1, Sume American Carboniferous fern fructifications; Mo. Bot. Garden Annals, 

v. 37, no. 3, p. 409-477, illus., Sept. 1950. Fructification species of ferns 

pared with European species. Several distinctly new entities are recognized, including seven new species, one new genus* one new variety,

and emendations. Descriptions, illustrations, and a bibliography are

given. V. S. 

the anatomy of BotryoptGris; Torrey Bot. Club. Bull., v. 77J no. 1>, p. 

462-494, ill us., Nov.-Dec. 1950. Describes a new species of coenoptevid

Tern, Botryoptens trisccta, from a coal .ball collected from the Caihouu 

horizon (Upper Pennsylvanian) in southern Illinois. The plant is

comprehensively described and discussed, and the species is compared

to other species of tne same genus,
BIBLIOGRAPHY 179

Mandarine, Joseph A.

The minerals of the Champion, Michigan, area: Rocks and Minerals, v. 25, 

nos. 11-12, p. 563-565, illus., Nov.-Dec. 1950. Brief notations on the 

minerals collected from the Beacon mine dumps and the Phenix pits, 

near Champion, on the Upper Peninsula of Michigan. Pyrite, hematite, siderite, magnetite, goethite, chlorite, tourmaline, and quartz are 

among those listed.

Mandra, York T.

Studies on fossil silicoflagellates [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt\ 

2, p. 1539, Dec. 1950.

Manly, Robert L., Jr.

The differential thermal analysis of certain phosphates: Am. Mineralogist, 

 v. 35, nos. 1-2, p. 108-115, illus., Jan.-Feb. 1950. Some phosphates give 

endothermic reactions at low temperatures, indicative of a loss of water 

of crystallization. At higher temperatures these reactions are smaller 

and correlate with loss of hydroxyl, or possibly fluorine. Hydrous 

aluminum-phosphates commonly recrystallize on heating, with formation 

of different structures. V. S.

Mann, Robert.

(and Schmidt, Eugene). Radio wave prospecting for structure: World Oil, 

v. 131, no. 6, p. 92, illus., Nov. 1950. Outlines briefly the method of 

exploration for structure by recording radio frequency waves transmitted through the ground. Instruments have been developed which 

give continuous recording from an airplane, a car, or equipment carried 

on foot. V. S.

Mann, Virgil I. See also Emmons, R. C.

A spot test for phosphorus in rocks: Jour. Sed. Petrology, v. 20, no. 2, p. 116- 

117, June 1950. "Acid ammonium molybdate will react with soluble 

phosphates to form a yellow precipitate. A technique has been devised 

which utilizes this principle to identify phosphorus-bearing minerals 

directly upon a rock surface."

Manning, George A.

(and Ogle, Burdette A.). Geology of the Blue Lake quadrangle, California: 

Calif. Dept. Nat. Res., Div. Mines, Bull. 148, 36 p., illus. incl. geol. maps, 

July 1950. The Blue Lake quadrangle, in Humboldt County and largely 

within the northern Coast Ranges, is characterized by Tertiary, Jurassic, 

and older formations. Structurally it is marked by complex repeated 

faulting. These features are described, with notes on geoniorphology, 

paleontology, and economic mineral deposits. A bibliography is given.

V. S. 

Mapes Vasquez, Eduardo.

Los criaderos niinerales de "El Bote", Zacatecas, Zac.: Mexico Inst. Nac. Inv. 

Rec. Miner. Bol. 24, 39 p., illus. incl. geol. map, 1949. The stratigraphy, 

structure, and ore deposits of El Bote mine area, in the southwestern 

part of the Sierra de Zacatecas, central Mexico, are described. The 

strata are Triassic, Jurassic, and Tertiary. Lead, zinc, silver, and gold 

mineralization occurred during Tertiary time.

Marble, John Putnam.

1. Some applications of autoracliography: Internat. Geol. Cong., 18th, Great 

Britain, Rept. pt. 2, p. 80-85, illus., 1950; abs., Volume of titles and 

abstracts, p. 6-7, 1948. "A properly prepared surface of a radioactive 

mineral, when placed in direct contact with a photographic plate or film 

for an optimum time will yield valuable information as to relative radioactive content of different parts of the specimen, leaching, infiltration 

of radioactive matter, movements subsequent to original crystallization 

and other points. ... By exposing for the same length'of time chips of 

an unknown mineral with others whose U+Th content is known, a 

semi-quantitative estimate of the U+Th content of the unanalyzed mineral can be quickly made."
180 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Marble, John Putnam Continued

2. Lead-uranium ratio and possible geologic age of allanite from Greenwich, 

Massachusetts: Am. Mineralogist, v. 35, nos. 9-10, p. 845-852, illus., 

Sept.-Oct. 1950. "Allanite from a pegmatitic lens in the Monson granodiorite at Greenwich, Massachusetts, contains 0.03 Pb, 1.53 Th, 0.095 U. 

The results of other studies are outlined, and a maximum possible age 

of about 390 million years is calculated."

3. (chairman). Report of the Committee on the measurement of geologic 

time, 1949-1950: Natl. Research Council, Div. Geology and Geography, 

118 p. (|), Nov. 1950. Contains progress reports of current work by 

L. H. Ahrens and P. M. Hurley; an annotated bibliography of articles 

related to the measurement of geologic time by the chairman; and 

other information by H. V. Ellsworth and the chairman.

4. Review of recent work in Laboratory of Geophysics, Department of Physics, 

University of Toronto: Natl. Research Council, Div. Geology and 

Geography, Rpt. of the Committee on the measurement of geologic time, 

1949-1950, Exhibit D, p. 39-42 ($), Nov. 1950. The work in progress, 

pertinent to geophysics and geologic time measurement, is described.

5. Annotated bibliography of articles related to the measurement of geologic 

time: Natl. Research Council, Div. Geology and GeographyrRpt. of the 

Committee on the measurement of geologic time, 1949-1950, 'Exhibit 

F, p. 52-112 ($), Nov. 1950.

Mardock, E, S, See Bush, R. E.

Marel, H. W. van der.

Identification of minerals in soil clay by x-ray diffraction patterns: Soil Science, v. 70, no. 2, p. 109-136, illus., Aug. 1950. X-ray diffraction data 

for three groups are given: those occurring in the clay separate of soils, 

those occurring in the clay separate of sediments, and minerals to which 

those in the clay separate of soils are closely related. The camera, 

preparation of the sample, readings, calculations, and corrections are 

described.

Marsell, Ray E.

Rate and processes of enlargement of road cuts in bouklery alluvium [abs.] : 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1528-1529, Dec. 1950.

Marshall, Charles Edmund. See Hseung, Y.

Marshall, H. E.

(and Maxey, J. S.). The role of the geologist in constructing Ohio's highways: 

Ohio State TJniv., Bng. Bxpt. Sta. News, v. 22, no. 2, p. 12-14, 32-34,

illus,, Apr. 1950. Describes briefly the responsibilities of the highway

geologist in the investigation of soil and rock conditions for new highway

construction, with particular attention to landslides, peat deposits, and

ground water. 

Marshall, John. See Christensen, H. E.

Martin, Benjamin Herbert.

Humphrey-Gray pool, Jones County, Texas: Abilene Geol. Soc., Geol. Contr.,

p. 26-30, illus.. 1950. The history of discovery, stratigraphy, structure, 

nncl producing lioi-izoiis ure described.

Martin, Helen Mary Mandeville.

Geology or Michigan [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1570,

Dec. 1950.

Martin, Lawrence,

William Morris Davis: investigator, teacher, and leader in geomorpbology:

Assoo. Am. Geogi'ap-hGi'S Annals, 'v. 40, no. 2, p\ 172-180, Sept. 1950. A

biogi-nuliicsxl tribute to William Morris Davis, 185O 1934. on the ocoaMartin, Maurice. See Doll, H. G.
BIBLIOGRAPHY 181

Martfnez Portillo, Jesus.

Bibliografia del Ing. D. Ezeqtiiel OrdSnez: Asoc. Mex. Geol. Petrol. Bol., v. 2, 

no. 6, p. 419-428, June 1950. Lists 129 papers.

Mariner, Samuel T.

Observations on seismic waves reflected at the core boundary of the earth: 

Seismol. Soc. Am. Bull., v. 40, no. 2, p. 95-109, illus., Apr. 1950. A comparison is made between amplitudes of waves reflected from the outer 

boundary of the earth's core and amplitudes of direct body waves. 

The data suggest that the phase displacement ratios of respective 

longitudinal waves are larger than reasonable modifications of recognized theories can explain. The evidence, plotted in diagrams, is discussed. . V. S.

Mason, Brian Harold.

1. (and Vitaliano, Charles J.). A preliminary account of the naturally occurring antimony oxides [abs.]: Am. Mineralogist, v. 35, nos. 3-4, p. 286- 

287, Mar-Apr. 1950.

2. (and Vitaliano, Charles J.). Bystromite, magnesium antimonate, a new 

mineral [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1484, Dec. 

1950.

3. (and Vitaliano, Charles J.). Further account of the naturally occurring 

antimony oxides [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1484, 

Dec. 1950.

Mason, J. W. See Wheeler, H. E., 1.

Mason, Martin A. See also Eosalsky, M. B.

Geology in shore-control problems, in Applied sedimentation, p. 276-290, illus., 

1950. Presents several problems of shore control, such as the stabilization of beaches, maintenance of navigation channels, and harbor protection, and indicates the factors involved and ways in which the 

geologist can assist the engineer in modifying the factors.

Masson, Peter H.

Circular soil structures in northeastern California: Calif. Dept. Nat. Res., 

Div. Mines, Bull. 151, p. 61-71, illus., 1949. The low mounds of Siskiyou 

County, 2 to 3 feet high and up to 85 feet in diameter, each surrounded 

by a ring of loose stones, are described and explained by the free/ing 

and thawing of water-saturated, clayey soil, resulting in a concentration 

of clay. V. S.

Masters, John A.

Limestone a source rock of petroleum [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1556, Dec. 1950.

Mather, Kirtley Fletcher.

1. (and Roy, Chalmer John, and Thiesmeyer, Lincoln Renber). Physical geology ; a laboratory manual for geology, Part 1. xii, 87 p., illus. Appleton-Century-Crofts, Inc., 35 West 32 St., New York. 1950.

2. Memorial to Wallace Walter Atwoocl [1872-1949]: Geol. Soc. Am. Proc. 

1949, p. 107-112, port., June 1950.

Mather, William Bardwell.

Nonmetalliferous mineral resources in Arkansas: Min. Eng., v. 187, no. 5, 

p. 577-584, illus., May 1950; A. I. M. E. Trans., v. 187, 1950. Among the 

deposits described are clays, shales, slates, silica deposits, limestones 

and dolomites, barite, gypsum, and several others. The variety and 

distribution of the deposits indicate extensive potential use.

Mathews, Asa A. Lee.

Geology of Brazos County, Texas: Texas Eng. Expt. Sta. Research Rpt. 14, 

13 p. (t), illus. incl. geol. map, May 1950. Describes the stratigraphy of 

the Eocene and Miocene beds of Brazos County. A bibliography of 

references for each of the stratigraphic names is included.
182 ANNOTATED BIBLIOGRAPHY OF NORTH- AMERICAN GEOLOGY, 1950.

Mathews, William Henry.

1. Mount Garibaldi, a "supraglacial" volcano ? [abs.] : Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1484, Dec. 1950.

2. Physical features of the Lightning Lakes Valley, southwestern British 

Columbia [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1529, Dec. 

1950.

Mathieson, A. M.

(and Wadsley, A. D.). The crystal structure of cryptomelane: Arn. Mineralogist, v. 35, nos. 1-2, p. 99-101, Jan.-Feb. 1950. Cryptomelane is established as monoclinic. Unit-cell data are given. V. S.

Mathis, Robert W. See Barnes, V. E., 1.

Matthes, Francois Emile, 1874-1948.

1. (chairman). Variations of glaciers in the continental United States and 

Alaska, 1933-1938: Assoc. Int. Hydrol. Sci., Reunion, Washington, 1939, 

C. R. tome 2, Comm. des Glaciers, Question 1, Rapport 7, 22 p. [1948?]. 

Report of the Committee on Glaciers of the Section of Hydrology, American Geophysical Union. Includes a partial bibliography of more than 

100 references on Alaskan glaciers.

2. The incomparable valley, xiii, 160 p: illus. Berkeley, Calif. University of 

California Press. 1950. The geologic interpretation of Yosemite Valley, 

California, assembled from the author's unpublished notes by Fritiof 

Fryxell into a most readable and well illustrated book.

3. Sequoia National Park, viii, 136 p. illus., Berkeley, California. University 

of California Press. 1950. A collection of photographs of Sequoia National Park, California, accompanied by nontechnical, interpretive descriptions of the geologic features. The book, ably edited by Fritiof 

Fryxell, is an outgrowth of the Sequoia albums, prepared in 1938 by 

the author to serve as a pictorial guide to the region.

Matthews, A. E.

Applications of geology and soil science to highway problem [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1570, Dec. 1950. ,

Matthews, Claude W. See Byrne, F. E., 4. 

Mauer, Floyd A. See McMurdie, H. F.

Mauffette, Pierre.

1. Preliminary report on Denholm-Hincks area, Gatineau County: Quebec

Dept. Mines, Geol. Surveys Br., Prelim. Rpt. 235, 5 p. (J), geol. map, 

1949. Brief notes on the Grenville series, intrusive rocks, and Pleistocene deposits of'the IDenliolim-Hinclis ixreti, north of Ottawa..

2. Notes SUf la de"couverte des sediments f ossilif eres de la mer Champlain dans

les regions de Val-des-Bois, de-Martmdale et de Parrellton, P.'Q. : AssOC. 

Canadienne-Frangaise 1'Avancement des Sciences Annales, v. 16, p. 100-

103,1950. Reports the discovery of fossiliferous beds of Pleistocene age 

in the Val-des-Bois region north of Ottawa, Canada.

Maurice, Ovide D.

R'azllly man-area, Abitibi-East County: Quebec Dept. Mines, Geol. Surveys Br.,

Geol. Kpt. 41, 16 p., Illus. Incl. geol. rutxp, 1»OO. J^esei-lbes tue jjeuevii]

and structural geology of an area of pre-Cambrian voicanics and intru-

 sives in northern Quebec.

Mawdsley, James Buckland.

Pine Channel area. Lake Athabasca district, Saskatchewan (report and map) :

1 Canaqa Geol. Survey rapcr 10-21, i« p. ^T?, e^1 - mT- ao'i0- m"»

bedrock consists of the Tazin gneisses, the Athabaska series of con- glomerates and sandstones, and several types of intrvisives, all of preCambrian age. The rocks, mineral prospects, and structure of the area

are described, v- s-
BIBLIOGRAPHY 183

Maxey, George Burke.

(and Robinson, Thomas William, Jr.). Ground water in Las Vegas, Pahrump, 

and Indian Spring Valleys, Nevada (a summary) : Nev. State Engineer's 

Office, Water Res. Bull. 6, 23 p., illus., 1947. A summarized version of 

Bulletin 5 (1948).

Maxey, J. S. See Marshall, H. EL

Maxson, John Haviland.

1. Lava flows in the Grand Canyon of the Colorado River, Arizona: Geol. Soc. 

Am. Bull., v. 61, no. 1, p. 9-15, illus., Ja.Tn. 1950. In the downstream 

three-fourths of the river channel the remnants of the oliviue basalt 

lava appear to pertain to the same flow, whereas in the upstream onefourth several flows may be distinguished. ' The lowest correlates with 

the downstream remnants and exemplifies strikingly the lava's fluidity.

V. S.

2. Physiographic features of the Panamint Range, California: Geol. Soc. Am. 

Bull., v. 61, no. 2, p. 99-114, illus., Feb. 1950. "The Panamint Range, 

California, exemplifies many of the characteristic geornorphic features 

of basin ranges. The central part of the range was an inselberg on a 

pre-faulting surface of generally low to moderate relief developed in an 

arid climate. The Panamint block was brought into strong relief presumably by late Pliocene and early Pleistocene down-faulting of adjacent 

basin blocks on faults of variable dip. Movement was in part strikeslip ; the Panamint Valley block moved northward and down with respect 

to the mountain block. In addition the Panamint block and adjacent 

depressed Death Valley block were rotated eastward."

3. Pediments and pediplains tabs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1556-1557, Dec. 1950.

Maxwell, John A.

Field geology at West Virginia University: Compass, v. 28, no. 1, p. 13-19, 

illus. incl. geol. sketch map, Nov. 1950. The summer field course in 

geology is held at Camp Arthur Wood near Alvon, Greenbrier County, 

in southeastern West Virginia. The stratigraphy and structure of the 

area are briefly described, accompanied by a columnar section and a 

geologic sketch map. Silurian, Devonian, and Mississippiau strata are 

present.

Maxwell, Ross Allan. See Lonsdale, J. T.

Maync, Wolf.

1. The Cretaceous beds between Kuhn Island and Cape Franklin (Gauss 

Peninsula), northern East Greenland: Meddelelser om Gr0nland, Bel. 

133, no. 3, 291 p., illus., 1949. A detailed and comprehensive account of 

the Cretaceous stratigraphy on Kuhn, Sabine, Pendulum, and Clavering 

Islands, the Wollaston Foreland, Hold-with-Hope Foreland, and Gauss 

Peninsula along the coast of East Greenland between 73° and 75° N. lat. 

Sedimentation and facies, the effect of block faulting, and faunal assemblages are discussed. Many detailed columnar sections and an extensive bibliography are included.

2. The foraminiferal genus Choffatella Schlumberger in the Lower Cretaceous 

(Urgonian) of the Caribbean region (Venezuela, Cuba, Mexico, and 

Florida) : Eclogae Geologicae Helvetiae, v. 42, no. 2, p. 529-547, illus., 

1949. The stratigraphic and geographic distribution of Choffatella is 

discussed. The classification of the Lituolidae is discussed, an emended 

description and new localities for Choffatella decipiens are given, and 

notes on Choffatella peneropliformis are included. A bibliography is 

appended.

Mayo, Evans Blakemore. See Webb, R. W. 

Mead, Robert Everett. See Brown, R.

Meade, Grayson Eichelberger.

Early Pleistocene fauna from Frederick, Oklahoma [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt 2, p. 1485, Dec. 1950.
184 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Mears, Brainerd, Jr.

1. Faulting in Oak Creek Canyon and a discussion of contrary bending: 

Plateau, v. 23, no. 2, p. 26-31, illus., Oct. 1950. Discusses the various 

ways that reverse drag folding can be produced, and .concludes that the 

reverse drag present in Oak Creek Canyon, Arizona, is the result of initial. 

faulting followed by compression which causes buckling of the strata 

adjacent to the fault.

2. Cenozoic geornorphic history of the Oak Creek Canyon region, Arizona 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1557, Dec. 1950.

Meeker, John E. See Roruney, C. F., 2, 3.

Meen, Victor Ben.

1. Mineralogy, a science and a hobby: Royal Canadian lust. Proc., ser. 3A, 

v. 15, p. 13-22, 1949-50. Presidential address delivered to the Royal 

Canadian Institute on November 5, 1949.

2. Chubb crater, Ungava, Quebec [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 

2, p. 1485, Dec. 1950.

Meholin, Graydon L.

Recent geological developments in western Anaclarko basin, Texas and Oklahoma Panhandles: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 7, p. 1530- 

1539, illus., July 1950; abs., no. 3, p. 622-623, Mar. 1950. Discusses 

general stratigraphic and structural trends in the subsurface Mississippian and Pennsylvanian beds in the western Anadarko basin, Amarillo 

district, Texas and Oklahoma Panhandles, revealed by the recent drilling 

of 12 deep wildcat tests. V. S.

Meinzer, Oscar Edward, 1876-1948.

1. Ground water in the United States; a concise report on the ground-water 

conditions and resources of the country, the utilization of the ground 

water, and the scientific investigation and literature relating to the subject : Assoc. Internat. Hydrol. Sci., Reunion, Washington, 1939, C. R. tome 

2, Coinm. des Eaux Souterraines, Bnquete, Rapport 8, 15 p. [1948?].

2. Geology and engineering in the production and control of ground water, in 

Application of geology to engineering practice, Berkey Volume, p. 151- 

179, illus., Geol. Soc. Am., New York, 1950. Geohydrology, or ground 

water hydrology, is defined and its principles are outlined. The application of geohydrology in the development of ground-water supplies and 

in engineering projects is discussed.

Meissner, Fred F.

An epsomite occurrence in the Tintic District, Utah: Rocks and Minerals, v. 

25, nos. 3-4, p. 132-133, 179, illus., Mar.-Apr. 1950. Epsomite occurs as 

a secondary deposit in the form of white hairlike efflorescence in the

mine of the Chief Consolidated Mining Co. near Eureka, Utah. V. S.

Mellen, Frederic Francis.

Status or 3Tearn Springs formation : Miss. Geol. Survey Bun. OO, SO p., illus.,

1950. Defines and discusses the stratigraphic importance of the Pearn

Springs formation, a cyclical unit at the base of the Wilcos group

(Tertiary) in Mississippi. 

Melton, Frank Armon.

j... xuc ouroiiim "uu.ya" ; ii'uur. tseoiogy, r. oo( no. a, p. lacs 3.0-1, niuo., ZKLUI.-.

1950. D. W. Johnson's spring-vent hypothesis for the formation of the

bays is criticized, and a revised meteoritic theory is used to show that

the causal impact could have occurred at any one of several geologic

periods. V. S.

SS. -JTHe {jeomoi-ptiology n.n<3 plioto-geologlcixl stuciy oC tlie "flat-lsirKls", -tn Syuippsium of information relative to uses of aerial photographs by geologists : Photogrammetric Engineering, v. 16, no. 5, p. 722 744, illus., Dec.

1050; Mines Mag., v. 40, no. 10, p. 37-48, 52, 74, illus., Oct. 1050. The 

geomorphic types of relatively low-lying areas are listed, structural 

interpretation is discussed, special features of such areas are enumerated, and geologic interpretation by stereoscopic vision is examined.
BIBLIOGRAPHY 185

Melvin, John Harper.

The Division of Geological Survey: Ohio State Univ., Eng. Expt. Sta. News, 

v. 22, no. 2, p. 3, 22, Apr. 1950. The Geological Survey of Ohio became, 

on August 10, 1949, the Division of Geological Survey of the Department of Natural Resources. The duties and responsibilities of the 

Division are given.

Menard, Henry W., Jr.

1. Current-ripple profiles and their development: Jour. Geology, v. 58, no. 2, 

p. 152-153, illus., Mar. 1950. Changes in ripple-mark profiles, developed 

by variations of water velocity, suggest that the profiles preserved in 

the geologic section may have value as indicators of current velocities 

in ancient watercourses. V. S.

2. Transportation of sediment by bubbles: Jour. Sed. Petrology, v. 20, no. 2, 

p. 98-106, illus., June 1950. "Bubbles adhere to sediment in water and 

facilitate its transportation both in suspension and as bed-load. The 

physical limitations on the formation of bubble-grain agglomerates are 

analysed, and natural environments favorable for their occurrence are 

discussed. The agglomerates influence the sorting as well as the transportation of sediment."

3. Sediment movement in relation to current velocity: Jour. Sed. Petrology, v. 

20, no. 3, p. 148-160, illus., Sept. 1950. "Experiments in flumes indicate 

that the type of movement on a bed of sand may be correlated with 

mean current velocity. The bottom conditions to be expected if a given 

current acts on a sand of a given grain size in shallow water are shown 

in graphic form, and the conditions are discussed."

4. (and Ludwick, John C.). Some theoretical aspects of density currents 

[abs.]: Oil and Gas Jour., v. 48, no. 51, p. 172, 176, Apr. 27, 1950.

Mendoza, Raiil Escalante. See Salas, G. P.

Meneses de Gyves, Javier.

Zonas micropaleontologicas del Oligoceno del noreste de Mexico: Asoc. Mex. 

Ge<51. Petrol. Bol., v. 2, no. 1, p. 71-81, illus., Jan. 1950. Foraminifera 

species of Oligocene age encountered.in the drilling of wells in northeastern Tamaulipas, Mexico, are listed and figured. On the basis of 

the Foraminifera, the beds are subdivided into the Vicksburg, Frio, 

Anahuac, and C'atahoula formations and into marine and brackish water 

zones.

Merker, L. See Moore, C. EL, Jr.

Merrell, Richard H.

The distribution and frequency of Alaskan earthquakes, 1939-1948: Seismol. 

Soc. Am. Bull., v. 40, no. 4, p. 267-269, map, Oct. 1950. Alaskan earthquakes during 1939-48 were of low intensity and were concentrated in 

the central and south-central portion of the country, with the greatest 

frequency at Fairbanks and in the area of the Kenai Peninsula. The 

known epicenters and frequency distribution are mapped. V. S.

Me rriant, Patricia.

Ice caves: Natl. Speleol. Soc. Bull. 12, p. 32-37, illus., Nov. 1950. "Ice caves 

are permanent caves in which ice forms and remains far into the summer 

or throughout the year. Several suggestions as to their origin are presented. The factors necessary for their formation are probably a rock 

formation with many crevices, cold winters, a good circulatory system, 

and adequate shading in the summer. A list of ice caves in the United 

States is presented."

Merritt, Phillip Leonidas.

Uranium exploration in the United States: Canadian Min. Met Bull. 460, p. 

438-443, illus., Aug. 1950; Canadian Inst. Mining and Metallurgy Trans., 

v. 53, p. 289-294, 1950; Rocks and Minerals, v. 25, nos. 7-8, p. 363-370, 

July-Aug. 1950. The exploration program of the Atomic Energy Commission is outlined and areas of specific interest Colorado Plateau, 

Colorado Front Range, Sunshine mine in Idaho, the Upper Peninsula 

of Michigan, and Marysvale, Utah, are described. Possible low-grade 

sources are also considered.
186 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Merwin, Herbert Eugene.

Acceptance of the Roebling Medal of the Mineralogical Society of America: 

Am. Mineralogist, v. 35, nos. 3-4, p. 258, Mar.-Apr. 1950.

Messina, Angelina Rose. See EUis, B. F. 

Meyer, Charles. See Sales, R. H., 1.

Meyerhoff, Howard Augustus.

1. Industrial minerals in 1949: Min. Eng., v. 187, no. 1, p. 68-73, illus., Jan. 

1950. A review of developments and trends in the field of nonmetallic 

minerals during 1949.

2. Tectonics and the Davis assumptions [abs.]: Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1485-1486, Dec. 1950.

Meyers, Theodore Ralph.

Foundry sands of New Hampshire: N. H. State Plan. Dev. Comm. Mineral Res. 

Survey, Pt. 13, 30 p., map, 1950. General data on foundry sands are 

given, followed by descriptions of the occurrence and distribution of 

New Hampshire deposits. Mechanical analyses were made by Willis C. 

Campbell.

Meyrowitz, Robert.

(and Larsen, Esper Signius, Jr.). Immersion liquids of high refractive index 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1486, Dec. 1950.

Michigan University, Lake Hydraulics Laboratory.

Bibliography on beach erosion and related subjects: Mich. Univ., Lake Hydraulics Lab., Research Pub. 1, 86 p., Mar. 1, 1950. Contains approximately 700 references on beach erosion, ripplemarks, sand and sand 

movement, shore protection, and engineering aspects of beach erosion 

problems. Annotations are given for about 150 references.

Mickelson, John Chester.

Pleistocene and recent deposits, LeBeau quadrangle, South Dakota [abs.]: 

Northwest Sci., v. 24, no. 1, p. 36, Feb. 1950.

Middlebrooks, Thomas A.

Eartll daillS, in Applied sedimentation, p. 181-192, 1950. "Investigational, design, and construction features of earth dams are covered in this chapter 

with specific reference to soil mechanics and geological aspects of all

phases of the work."

Mielenz, Richard Childs. See also McCounell, D., 1.

(and King, Myrle E., and Schieitz, N. Cyril). Staining tests, in Analytical 

data on reference clay minerals: Am. Petrol. Inst. Project 49, Clay 

Mineral Standards, Prelim. Rpt. 7, p. 135-160, July 1950.

Migliorini, C. I. See Kuenen, P. H., 3.

Mikami, Harry M.

(and Digman, Ralph E.). Geology of the Branford-Killingwortll area, Connecticut [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1486-1487, 

Dec. 1950.

Miller, Arthur K. See also Youngquist, W. L,., 1, 2.

1. Iowa Pennsylvanian goniatitSS : lOWR ACRd. SCi, Pl'OC., V. 56, p. 225-228, 

illus., 1949. Discusses the thi-ee species of ammonoids which OCCUT il] 

the Pennsylvanian strata of Iowa. The occurrences are very rare one 

Specimen of P(MlU(JOmS (tll6 Ollly laiOWtl Occurrence in this country) 

and one of Wiedeyoceras. The other four specimens, fomiQny reiCH'CCl 

to EoasimiteS [GaStriOCeras] exeelsus (Meek), are given a new species 

name, Eoasianitea wilsoni and one is designated ag the hOlOtjpe.

2. (and Downs, Harold Robert). Tertiary nautiloids of the Arnerlcas supplement: Jour. Paleontology, V. 24, BO. 1, p. 1-18, illns., Jan. lopo.' Representatives of Eutrephoceras, Cimomia, Hercor/lossa, DeltoidOnttUtttUS, 

and Aturia, from various geologic periods and areas in the United States, 

Colombia, Trinidad, Peru, and Cuba are described and figured in part.

V. S.
BIBLIOGRAPHY 187

Miller, Arthur K. Continued

3. (and Downs, Harold Robert). Aminonoids of the Pennsylvanian Finis 

shale of Texas: Jour. Paleontology, v. 24, no. 2, p. 185-218, illus., Mar. 

1950. Fifteen species in 11 genera from the Finis shale of the Graham 

formation of north-central Texas, the largest single ainmonoid fauna 

known from the Upper Pennsylvanian, are discussed and illustrated. 

A new species referable to Vidrioceras is established. V. S.

4. Brittsooeras, a synonym of Porcellia: Jour. Paleontology, v. 24, no. 4, p. 506, 

July 1950. Assumes responsibility for the erroneous generic name 

Brittsoceras. V. S.

5. (and Downs, Harold Robert). Additional amnaonoids from the Mississippion Barnett formation of Texas: Jour. Paleontology, v. 24, no. 5, p. 

575-576, illus., Sept. 1950. Additional notes on amnionoids collected 

from the Mississippian Barnett formation near San Saba, Texas, including a single rare specimen of Neoglyphioceras, are given. One 'new 

species, Girtyoceras "burmai, is described.

6. (and Collinson, Charles). A unique Mississippian nautiloid from Kentucky: Jour. Paleontology, v. 24, no. 6, p. 673-674, illus., Nov. 1950. "A 

large, nodose, discoidal nautiloid from the Meramec of south-central 

Kentucky is illustrated and described as Tylodiscoceras unicum, n. 

gen. and n. sp."

7. The role of Paleozoic ammonoids in pure and applied geology tabs.], in 

Symposium on fundamentals in paleontology: Jour. Paleontology, v. 24, 

no. 2, p. 130, Mar. 1950. Paleozoic ainmonoid genera from which the 

complicated Permian forms evolved have been found widely distributed, 

suggesting that the evolution may not have been restricted exclusively 

to the region that is now southwestern United States.

Miller, John Robson.

Roosevelt field, Utah, in. Petroleum geology of the Uinta Basin: Guidebook to 

the Geology of Utah, no. 5, p. 147-152, illus., 1950. The Tertiary stratigraphy, structure, and production data of the Roosevelt oil field, northeastern Utah, are briefly presented. The field was opened in 1949.

Miller, Loye Holmes.

A Miocene flamingo from California : Condor, v. 52, no. 2, p. 69-73, illus., Mar.- 

Apr. 1950. Reports the finding, in Upper Miocene lacustrine clays at 

Barstow, California, of a tibial fragment that has been tentatively 

assigned to Megapaleolodns connectens. Comparison is made with the 

fragments from South Dakota, on which the genus was originally established, and the characteristics and relationships are discussed.

Miller, Maynard M.

1. Glacier survey in the Tetons, 1947: Am. Alpine Jour., v. 7,*no. 2, p. 172-173, 

Jan. 1949. Brief notes made during an aerial survey of the glaciers in 

the Grand Teton National Park, Wyoming. The Teton glaciers are 

probably post-Pleistocene in age, and are now shrinking rapidly.

2. Aerial survey of Alaskan glaciers, 1947 : Am. Alpine Jour., v. 7, no. 2, p. 174- 

177, Jan. 1949. Notes on glaciers in the vicinity of Juneau, Glacier 

Bay; upper Alsek River, Cordova ; and other areas in Alaska.

Miller, Ralph LeRoy.

1. (and Brosg£, William P.). Geology of the Jonesville district, Lee County, 

Virginia: U. S. Geol. Survey Oil and Gas Inv. Prelim. Map no. 104 (2 

sheets). Scale 1 inch to % mile. 1950. The information given on 

the two sheets consists of a geologic map of the district, several cross 

sections, columnar section, table of well records, correlation of well 

records, and a text by the senior author devoted chiefly to a discussion 

of the structure and oil possibilities of the area. The exposed rocks of 

the Jonesville district are chiefly Upper Cambrian and Ordovician limestones and dolomites of the Cumberland overthrust block and of the 

underlying block now exposed as fensters. Bight new formation names 

are proposed for a section of the Ordovician strata.
188 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Miller, Ralph LeRoy Continued

 2. Developments in Alaska in 1949: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 6, 

p. 1226-1234, maps, June 1950. Outlines the geological and geophysical 

exploration for oil in the vicinity of Naval Petroleum Reserve No. 4 in 

northern Alaska and studies made in the Alaska Peninsula-Cook Inlet 

area of southern Alaska. V. S.

Miller, Robert Burns. »

Annotated bibliography of economic geology for 1944, v. 17, nos. 1-2, viii, 423 

p., 1950.

Miller, Stephen W. See Poulter, T. C., 1.

Miller, Victor C.

1.- Rapid dip estimation in photo-geological reconnaissance: Am. Assoc. Petrol. 

Geol. Bull., v. 34, no. 8, p. 1739-1743, illus., Aug. 1950. Describes the 

preparation of a graph, on which are plotted true dip Of slopes determined from topographic maps and apparent dip from aerial photographs, 

and from which the amount of vertical exaggeration in the photographs 

can be determined.

2. Pediments and pediment-forming processes near House Hock, Arizona : Jour. 

Geology, v. 58, no. 6, p. 634-645, illus., Nov. 1950. "At the base of the 

East Kaibab monocline, 6 miles south of House Rock, Arizona, stand two 

levels of pediment remnants, cut largely in Moenkopi red shales and 

capped by boulders and gravels of Kaibab limestone. The pediments are 

produced primarily by lateral corrasion by master streams, aided by 

rill wash and gully erosion. Pediment cutting has been interrupted by 

periods of aggradation in which thick protective gravels were spread 

upon the pediments."

Milligan, W. 0. See McAtee, J. L.

Mills, Joseph W.

Structural control of orebodies as illustrated by the use of vein contours at 

the O'Brien gold mine,' Cadillac, Quebec: Econ. Geology, v. 45, no. 8, p. 

786-807, illus., Dec. 1950. "This paper is an account of the method and 

results of constructing vein contours for the purpose of visualizing vein 

deflections in space and correlating them with ore shoots. Such a correlation is shown to exist for the gold-bearing veins of the O'Brien mine 

indicating that the position and attitudes of sites favorable for late 

gold deposition were determined principally by vein attitude, other 

Structural features, such as vein intersections and folds, are shown to

have had a strong localizing influence on the ore."

Mills, N. K. See*Bradish, B. B., 1, 2. 

Milne, W. G. See also Hodgson, J. H., 2.

Bibliography of seismology: Canada Dominion Observatory Pubs., v. 14, no. 

6, Items 7132-7221, July tO Dec. 1949, p, 135-145, 1950; no. 7, Items

7222-7417, Jan. to June 1950, p. 147-164,1950.

Milne, William P.

Relation of electric log resistivities in limestone to oil production: Okla. Acad. 

Sci. Proc., V. 29 (1948), p. 50-56, illus., Mar. 1950. The production of an 

oil well can be predicted from curves of a Standard composite resistivity 

log by measuring the deviation between the second and the third ClU've, 

Computing their departure from parallelism by a given formula, and

transposing the values into production figures on the basis of production 

tests. The method is illustrated for West Edmond field, Oklahoma.

V. S.
BIBLIOGRAPHY 189

Milton, Charles.

1. (and Davidson, Norman). An occurrence of natrolite, andradite, and 

allanite in the Franklin Furnace quadrangle, New Jersey: Am. Mineralogist, v. 35, nos. 7-8, p. 500-507, illus., July-Aug. 1950. "Masses of 

natrolite containing small crystals of green andradite and dark-brown 

allanite occur in the weathered debris of a nepheline syenite dike. 

Optical, chemical, and spectrographic data are given for these three 

minerals, with a brief discussion of paragenetic relationships. The 

nepheline syenite contains abundant brown melanite, but no andradite."

2. Nickel-copper-gold mineralogy at the Mackinaw mine, Snohomish County, 

Washington [abs.]: Am. Mineralogist, v. 35, nos. 3-4, p. 287, Mar.-Apr. 

1950.

Mina Uhink, Federico. See also Guzman, E. J., 2.

1. Notas para la geologia de Sinaloa: Asoc. Mex. Geol. Petrol. Bol., v. 2, no. 5, 

p. 345-363, geol. map, «May 1950. A brief outline of the sedimentary and 

igne'ous rocks (mainly Tertiary and Quaternary) of the State of Sinaloa 

on the west coast of Mexico. Petrographic notes for approximately 30 

specimens are by Herrnion Larios. The location of the specimens is 

shown on the geologic map.

2. Posibles provincias petroliferas Baja California: Petrfileos Mexicanos, no. 

81, p. 93-96, May 1950. 'Brief note on three potential petroleum areas of 

Lower California, Mexico.

Mink, John F. See Bates, T. F., 1, 3.

Misener, Austin Donald.

(and Thompson, L. G. D.). Temperature gradients in Ontario and Quebec: 

Canadian Min. Met. Bull. no. 462, p. 542-545, illus., Oct. 1950; Canadian 

Inst. Mining and Metallurgy Trans., v. 53, p. 368-371, 1950. The results 

of geothermal gradient measurements at several localities are presented. 

The areas are the Malartic gold field, Delnite mine, King mine in 

the Thetford area, Kerr-Addison gold mine, New Calumet mine, Lake 

Shore mine in the Kirkland Lake area, and a well at Toronto.

Miser, Hugh Dinsmore.

1. Manganese deposits of the southeastern states, in Snyder, F. G., ed., Symposium on mineral resources of the southeastern United States, p. 152- 

169, illus., 1950. The occurrence, distribution, mineralogy, and origin 

of manganese deposits in the southeastern United States are described. 

Production and reserve data are also given. A selected bibliography 

arranged by states is included .

2. Memorial to Joseph Alexander Taff [1862-1944] : Geol. Soc. Am. Proc. 1949, 

p. 227-235, port., June 1950.

Mississippi Geological Society.

Guidebook, Eighth Field Trip, October 13-15, 1950; Cretaceous of Mississippi 

and south Tennessee. 54 p., illus. Jackson, Miss. 1950. Contains 

articles by L. C. Conant and Jules Braunstein on Cretaceous- stratigraphy of Mississippi, a selected bibliography by G. W. Field, a road 

log, various maps, and a list of foraminifera from localities in the area 

covered by the trip.

Mitchell, Lane.

1. A new classification of the clays of Georgia: Ga. Geol. Survey Bull. 56, p. 

96-98, 1950. The clays found in Georgia are classified, according to 

properties, into kaolinites, montmorillonites, and illites, forming a useful 

grouping for the ceramic engineer.

2. Thermal analysis of Georgia minerals: Ga. Geol. Survey Bull. 56, p. 99-105, 

illus., 1950. Brief notes on the thermal analysis of Georgia clays and 

its use in their identification.

Mitchell, R. C.

Concerning the core of the earth [abs.]: Elisha Mitchell Sci. Soc. Jour., v. 66,

no. 2, p. 122, Dec. 1950. 

980682° 52 13
190 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Mitchell, Richard S.

A description of the quartz minerals found at Bayard, Nebraska: Rocks and 

Minerals, v. 25, nos. 1-2, p. 3-7, illus., Jan.-Feb. 1950. Describes 

chalcedony, agate, jasper, and chert characteristic of North Platte River 

gravel. V. S.

Moebs, Noel N.

History of the geology department at West Virginia University: Compass, v. 

28, no. 1, p. 9-12, Nov. 1950. Gives a historical sketch of the department 

and describes the type of course work.

Moffit, Fred Howard.

1. (and Fellows, Robert Ellsworth). Copper deposits of the Prince William 

Sound district, Alaska: U. S. Geol. Survey Bull. 963-B, p. 47-80, illus. 

incl. geol. maps, 1950. Prince William Sound, on the south-central 

coast of Alaska, was a copper-producing district from 1897 to 1930. 

The main deposits are associated with greenstone lava flows and 

intrusives, interbedded with Mesozoic (?) slates and graywackes. The 

history and present state of the mines and prospects, especially the 

Beatson-Bonanza and the Ellamar, are described, including the extent 

of development. V. S.

2. (and Reed, John Calvin, and Washburn, Albert Lincoln). Memorial to 

Philip Sidney Smith [1877-1949]: Geol. Soc. Am. Proc. 1949, p. 217-225, 

port., June 1950.

Moir, Leo Hughes, Jr.

Montalvo oil field, Ventura County [Calif.] [abs.]: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 12, p. 2379, Dec. 1950.

Molard, Pierre. See Coulomb, J.

Moneymaker, Berlen Clifford. See also Burwell, E. B., Jr., 2. 

Geology and foundation treatment of South Holston Dam, Tennessee [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1487-1488, Dec. 1950.

Monnett, Victor Elvert.

(and Brown, Howard E.). The principles of physical geology, vi, 450 p., 

illus. Boston, Ginn and Co. 1950.

Monroe, John Napier.

Origin Of the clastic dikes in the Rockwall area, Texas: Field & L,ab., v. 18, 

no. 4, p. 133-143, illus., Oct. 1950. The presence of bedding and 

Foraminifera in the clastic dikes of the Rockwall area, Texas, indicates 

that they were formed by the deposition of marine sediment in tension

cracks opened along the sea-floor during Upper Cretaceous time. Several dikes are described and illustrated. V. S.

Montgomery, Arthur.

Geochemistry of tantalum in the Harding pegmatite, Taos County, New Mexico : Am. Mineralogist, v. 35, nos. 9-10, p. 853-866, illus. incl. geol. maps, 

Sept.-Oct. 1950. "The notable tantalum enrichment in the Harding 

pegmatite, in northern New Mexico, is believed due to (1) a parental 

tantalum-rich granite, (2) a uniquely favorable environment, (3) specific absence Of tantalum-bearing sphene from all adjacent granite,

(4) long-continued deformation acting upon crystallizing granite and

pegmatite. A more indirect factor ... is believed to have been a

Chemical control exerted by pegmatite assimilation of country rock."

Moody, Graham B.

Foreword, tO Symposium On possible future oil provinces of the Pacific Coast 

region [abs.] : Am. Assoc. Petrol. Geol. Bull., V. 34, DO. 12, P. 2o5l, D6C. 

1950. Fifteen papers on "Washington, Oregon, and various regions of California, were presented at the meeting of the American Association

of Petroleum Geologists, October 20, 1950, of which abstracts are given 

in the Am. Assoc. Petrol. Geol. Bull, for December, 1950, p. 2381-2386.
BIBLIOGRAPHY 191

Moore, Carl Allphin.

(editor). A symposium on subsurface logging techniques. 113 p., illus. University Book Exchange, Norman, Okla. 1949. Contains ten papers 

presented at the Subsurface Geological Symposium held at the University of Oklahoma, April 5-6,1949.

Moore, Charles Henkel, Jr. See also Bauer, W. H.

(and Marker, L., and Lynd, L. E.). Observations on the flame fusion growth 

and structure of rutile crystals [abs.]: Am. Mineralogist, v. 35, nos. 

1-2, p. 127-128, Jan.-Feb. 1950.

Moore, Fred E.

Authigenic albite in the Green River oil shales: Jour. Sed. Petrology, v. 20, 

no. 4, p. 227-230, illus., Dec. 1950. "Very small crystals of authigenic 

albite have been found in those layers of the Green River formation 

[Colorado] with the highest content of organic matter. The nature of 

the Green River sediments clearly implies a low temperature of formation for the feldspar and suggests a relation between the organic matter 

and the authigenic mineral."

Moore, J. C. See Folinsbee, R. E., 1.

Moore, R. Woodward.

Development of geophysical methods of subsurface exploration in the field of 

highway construction: Highway Research Bd. Bull. 28, p. 73-99, illus., 

1950. The application of seismic and resistivity methods to subsurface 

exploration in connection with problems of highway construction is 

described and discussed.

Moore, Raymond Cecil.

1. Late Paleozoic cyclic sedimentation in central United States: Internat. 

Geol. Gong., 18th, Great Britain, Rpt. pt. 4, p. 5-16, illus., 1950; abs., 

Volume of titles and abstracts, p. 21, 1948. Describes and discusses 

the extensive cyclic sedimentation shown by the Pennsylvanian and 

Lower Permian deposits in Kansas and adjacent areas of the central 

United States. Types of cycles are differentiated. The problems involved in interpreting geologic history from the features of cyclic 

sedimentation are considered.

2. Evolution of the Crinoidea in relation to major paleogeographic changes in 

earth history: Internat. Geol. Cong., 18th, Great Britain, Rpt. pt. 12, 

p. 27-53, illus., 1950; abs., Volume of titles and abstracts, p. 77-78, 

1948. The evolutionary history of the main crinoid groups is presented, 

accompanied by a correlation of significant evolutionary changes with 

stratigraphic and geographic distribution of genera. Paleogeographic 

changes, due mainly to crustal movements, such as the establishment 

or interruption of seaways, are considered in their effect on development 

by either restricting or aiding intermigration.

3. Stratigraphical classification: Geol. Soc. Japan Jour., v. 56, no. 652, p. 39- 

47, Jan. 1950. An address before the Geological Society of Japan in 

which the various units of stratigraphic classification, formation, member, etc., are defined and the criteria for their recognition outlined. The 

separation of the units into two categories, on the basis of physical 

characters and geologic time concepts, is discussed.

4. (chairman, Am. Cornm. Stratigraphic Nomenclature). Note 10 Should 

additional categories of stratigraphic units be recognized?: Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 12, p. 2360-2361, Dec. 1950. Comments on 

the use of the term "sequence" as treated in the paper by H. E. Wheeler 

and others, "Stratigraphic classification", v. 34, no. 12, p. 2361-2365, 

Dec. 1950. . V. S.

Moorhead, Johnny Bob.

Geology of Fort Worth Basin [abs.]: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 3, 

p. 622, Mar. 1950.
Moorhouse, Walter Wilson.

1. Geology of Osway Township : Ontario Dept. Mines Ann. Rpt. 58, pt. 5 (1949), 

27 p., illus. incl. geol. map, 1951. Osway Township is located in the 

district of Suclbury, approximately 100 miles northwest of the town of 

Sudbury, Ontario. The area is one of pre-Cambrian sediments, volcanics, and intrusives overlain by glacial sand and gravel. The rocks 

and structure are described. The gold prospects are described, particularly the Jerome mine, although it is not operating. The colored 

geologic map is on a scale of 1 inch to 1,000 feet.

2. Preliminary report on O'Sullivan Lake area: Ontario Dept. Mines Prelim. 

Rpt. 1950-7, 5 p. (t), geol. map, 1950. Describes the pre-Cambrian 

rocks, structure, and prospected claims of the O'Sullivan Lake area, 

Thunder Bay district, northern Ontario.

Moot, C. W., Jr. See Johnston, K. H.

Morey, George Washington.

Solubility of quartz and some other substances in superheated steam at high 

pressures [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1488, Dec. 

1950.

Morley, Russell A.

The discovery of an additional Sams Valley, Oregon, meteorite (ECN=+1229, 

425) : Pop. Astronomy, v. 58, no. 5, p. 236-238, May 1950; Meteor. Soc. 

Contr., v. 4, no. 4, p. 261-262,1950. Physical properties of two meteorite 

specimens from Sams Valley, southern Oregon, are given, together with 

details of the occurrence.

Morris, H. T.

(and Lovering, Thomas Seward). Supergene and hydrothermal dispersion of 

heavy metals in wall rocks near ore bodies, Tintic district, Utah [abs.] : 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1488-1489, Dec. 1950.

Mortimore, D. M. See Kauffman, A. J., Jr., 2. 

Morton, Frank. See Barr, K. W.

Moseley, John R.

The Ordovician-Silurian contact near Kempton, Pennsylvania: Pa. Acad. Sci. 

Proc., v. 24, p. 176-187, geol. sketch maps, 1950. The lithology, structure, age, and stratigraphic relationships of the Martinsburg formation 

(Ordovician) in the vicinity of Kenipton, near Reading, Pennsylvania, 

are described. The fossils are listed. The field studies indicate that 

the Martinsburg formation and the overlying Tuscarora quartzite are 

separated by an angular unconformity.

Moyd, LOUiS Stephen.

1- 'Structure of the corundum deposit at Oaigmont; Geol. Assoc. Canada 

Proc., v. 2, p. 51-oG, nixas., A.r>,-. ior>o. Reports the results of a field 6Xploration study of the Craigmont corundum area, Kenfrew county, 

southeastern Ontario. The mineralogy, petrology, and structure of the 

ore deposit are described. Reserves of inferred ore are estimated at 

3,000,000 tons (between surface and adit level) from wmcn 200,000 tons

of concentrate oonid be recovered. Considerably DJOl'e 01'C IS indicated 

below adit level.

2 Determination of the coefficient of linear thermal expansion Of rock specimens by means of resistance wire (SR-4) Strain gauges: Min. Eng., v.

187, no. 6, p. 683-684, iiius., June 1950; A. i. M. B. TranS., v. 187, 1950 

Describes a method developed in the petrographic laboratory Of the

Concrete Research division of the Coi'PS Of Engineers at CUntOU, MlSSlSS1PP1. The Sample preparation, instrumentation, procedure, and computations are described.
BIBLIOGRAPHY 193

Mrose, Mary E.

Studies of uranium minerals (III); sal<§eite from Schneeberg, Saxony: Am. 

Mineralogist, v. 35, nos. 7-8, p. 525-530, illus., July-Aug. 1950. Optical, 

chemical, and X-ray crystallographic data on salSeite are presented. 

The material from Schneeberg, Saxony, is compared with that from 

Katanga, Belgian Congo. The formula of the Saxony material is 

Mg (UO*) 2Tr (P. As04 ) =.10H2O.

Mudge, Melville R. See Byrne, F. E., 2.

Muench, Oscar Brauer.

1. Recent analyses for age by lead ratios: Geol. Soc. Am. Bull., v. 61, no. 2, 

p. 129-132, Feb. 1950. The Pb-U ratios, for pitchblende from Colorado, 

monazite from Manitoba and New Mexico, and euxenite from Colorado 

are given, and the age of the pitchblende from AVood's mine, Central 

City, Colorado, is calculated to be 111 million years. The complete 

analysis of euxenite is included. V. S.

2. Determining geologic age from radioactivity: Sci. Monthly, v. 71, no. 5, 

p. 298-301, Nov. 1950. Outlines briefly methods of determining geologic 

age from radioactivity, the accuracy of determinations, and the results 

for certain minerals. A few details are given on chemical analysis.

V. S. 

Muilenberg, Garrett A.

(and Keller, Walter David). Carnotite and radioactive shale in Missouri: 

Am. Mineralogist, v. 35, nos. 3-4, p. 323-324, Mar.-Apr. 1950; Earth Sci. 

Digest, v. 4, no. S, p. 24, Mar. 1950. Reports and describes briefly the 

occurrence of oarnotite as a film along a joint in the Spergen limestone, 

Ste. Genevieve County, Missouri. Investigation with a Geiger counter 

indicated the presence of a thin bed of radioactive black shale overlying 

the carnotite occurrence, and possibly the source. It is suggested that the 

clay mineral of the shale, illite, may be uranium- and vanadium-bearing.

Miiller, Florence. See Arellano, A. R. V., 1.

Mullerried, Frederick Karl Gustav.

1. Contribucion a la geologla del Soconusco y regi6n vecina del Sur de 

Chiapas: Soc. Mex. Geog. Est. Bol., v. 66, no. 3, p. 403-430, illus. incl. 

. geol. sketch map, Nov.-Dec. 1948. A summary account of the physiography, stratigraphy, and geologic history of southern Chiapas, on the 

Guatemala border, Mexico, to which is added a report made in 1945 on 

the economic mineral possibilities of the region.

2. Sistematica y origen de los Plagioptychinae: Comision Impulsora y Coordinadora de la Investigacion Cientifica, Anuario 1947, p. 197-203, illus., 

Mexico, D. F., 1949. The characteristics and evolution of the three 

genera in the pelecypod subfamily Plagioptychinae CoralUochama, 

Plngiofttyclms, and Hitrocaprina, are discussed.

3. Contribucion a la geologia del Estado de Nuevo Leon: Soc. Mex. Hist. Nat., 

Rev., t. 10, nos. 1-4, p. 263-276, illus., Dec. 1949'. Describes and locates 

. on sketch maps mineral and rock occurrences, and fossil occurrences in 

Upper Jurassic and Cretaceous strata.

4. Nota acerca de la estratigrafia y roca basal en la region de San Pedro

Altetepan, cerca de Almanza, Estado de Veracruz (Mexico) : Ciencia, v.

. 10, nos. 9-10, p. 281-284, illus., 1950. Note on the Jurassic strata and

ammonites in the region of San Pedro Altetepan, near Almanza, eastern

Mexico.

5. El ing. Ezequiel Ordonez, 1867-1950: Giencia, v. 10, nos. 5-6, p. 173-174, port., 

Aug. 5, 1950.

6. Radiolitido supracretacico de Tlaquiltenango, Estado de Morelos: Soc. Mex. 

Hist. Nat., Rev., t. 11,. nos. 1-4, p. 223-228, illns., Dec. 1950. Describes 

the first occurrence in Mexico, and in America, of a fossil rudistid, 

Durania cornu-pastoris. The specimen was found-in Upper Cretaceous 

strata at Los Hornos, Estado de Morelos, south of Mexico City. A brief 

resume is given of previous descriptions of this species of Durania, 

showing the variability in the valve dimensions.
Munday, W. A. Don, 1890-1950.

The last advance of the glaciers in the Coast Mountains of British Columbia: 

Assoc. Int. Hydrol. Sci., Reunion, Washington, 1939, C. R. tome 2, 

Comm. des Glaciers, Question 1, Rapport 6, 5 p. [1948?]. Brief data 

on the advance and recession of Franklin, Scimitar, and Klinaklini 

glaciers.

Mundorff, Maurice John.

1. (and Legrand, Harry E.). Ground water in the Catawba and Broad River 

Basins, North Carolina, in Hydrologic data on the Catawba and Broad 

River Basins, 1872-1945: N. C. Dept. Conserv. Dev., Div. Water Res. and 

Eng., p. 103-129, illus. incl. geol. map, 1949. Briefly describes the 

geology and the water-bearing character of the rocks.

2. Flood-plain deposits of North Carolina Piedmont and mountain streams as 

a possible source of ground-water supply, Preliminary report: N. C. 

Dept. Conserv. Dev., Div. Mineral Res. Bull. 59, 20 p., illus., 1950. 

Reconnaissance and test borings were made along streams in the 

Piedmont and mountain sections of North Carolina to determine the 

occurrence and extent of their flood plains and the character of underlying alluvial materials. The data indicate that many of the flood 

plains have a sufficient thickness of permeable sands and gravels to 

furnish important supplies of ground water. V. S.

Munoz, Frank J. See Luna, J.

Munyan, Arthur Claude.

Apparatus for impregnation of rock: Ga. Geol. Survey Bull. 56, p. 130-133, 

illus., 1950. Describes the use of a dessicator in connection with the 

impregnation of friable rock specimens with Canada balsam. The 

specimen is placed in a beaker in a solution of balsam and benzine 

(1:5), placed in the dessicator to which a vacuum line has been attached, the pressure reduced, and the air in the rock withdrawn and 

replaced by the balsam. The specimen is then dried at 100 C. Total 

time is approximately 15-20 minutes, and several specimens may be done 

at one time.

Murata, Kiguma Jack. See also Stadnichenko, T.; Tunell, G., 2.

(and others). Hydration and base-exchange properties of carnotite, tyuyamunite and related compounds [abs.] : Geol. Soc. Am Bull , v 61 no 12 

pt 2, p. 1489-1490, Dec. 1950.

Murdoch, Joseph.

Perovskite from California [abs.l : Am. Mineralogist, v. 35, nos. 3-4, p. 287

Mar-Apr. 1950.

Murdoclc, Thomas Clenn.

The mining industry in North Carolina from 1937 to 1945: N. C. Dept. 

Conserv. Dev., Div. Mineral Res., Econ. Paper no. 65, 57 p., [1950?]. 

The occurrence of metallic and non-metallic mineral resources in North 

Carolina is described, with particular attention to mica, clay, and 

building stone.

Murphy, Leonard M.

United States earthquakes, 1947: U. S. Coast and Geod. Survey Serial 730, 

61 p., illus., 1950.

Murphy, Richard. See James, W. F. 

Murray, Albert Nelson.

The gilsonite deposits of the Uinta Basin, Utah, in Petroleum geology of the

Uinta Basin: Guidebook to the Geology of Utah, no. 5, p. 115-118, illus.,

1950. Brief general comments on the occurrence and origin Of the 

gilsonite veins in the Tertiary strata of the Uinta Basin, northeastern 

Utah.
BIBLIOGRAPHY 195

Murray, Grover Elmer, Jr.

1. (and Wilbert, Louis Joseph, Jr.). Jacksonian stage: Am. Assoc. Petrol. 

Geol. Bull., v. 34, no. 10, p. 1990-1997, Oct. 1950. "Jacksonian is introduced as a time and time-rock unit replacing Jackson formation and 

Jackson group as a major division of the Eocene sediments of the Gulf 

and Atlantic Coastal Plain. . . . The original type section of the Jackson group (exposures at Jackson, Mississippi) is designated as typical 

of the Jacksonian stage. More complete . . . sections . . . are designated as standard sections for comparison. . . . Suggestions for similar 

establishment of other natural divisions of Gulf Coast Tertiary sediments are made."

2. Geosynclinal deposits in central Gulf region of United States [abs.]: Oil 

and Gas Jour., v. 48, no. 51, p. 123, Apr. 27,1950.

3. Lithologic facies of Jacksonian stage, central and eastern Gulf Coast [abs.]: 

Oil and Gas Jour., v. 48, no. 51, p. 123, 172, Apr. 27, 1950.

4. Mesozoic and Cenozoic sedimentary volumes in central Gulf Coast [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1490-1491, Dec. 1950.

Murray, Harrison Frank.

Advanced field geology: Compass, v. 27, no. 3, p. 113-114, Mar. 1950. Describes 

the summer course in advanced field geology, given at the University of 

Colorado, Boulder, Colo., for training in geologic mapping and interpretation. V. S.

Mutch, A. D. See Kennedy, G. C., 2; Schmitt, H. A., 4.

Myers, Richmond Elmore.

The value of a research paper in an elementary geology course: Pa. Acad. Sci. 

Proc., v. 24, p. 230-^233, 1950. A paper on the geology of the area of his 

home town is required of each first-year geology student at Muhlenberg 

College, Allentown, Pennsylvania. The general outline of the paper, 

the procedure under which it is compiled, and the criteria for grading 

are discussed.

Myers, W. Bradley. See Bailey, E. H.

Natland, Manley Leonard.

1. The 1940 E. W. Scripps cruise to the Gulf of California, Part 4, Report on 

the Pleistocene and Pliocene Foraminifera: Geol. Soc. Am. Mem. 43, 

v, 55 p., illus., Aug. 10, 1950. Systematic descriptions of approximately 

155 species of Pliocene and Pleistocene Foraminifera collected from 

islands in the Gulf of California. Five species are new. Notes on 

paleoecology are included.

2. Sedimentary features suggesting turbidity flow in deep southern California 

Tertiary basins [abs.]: Oil and Gas Jour., v. 48, no. 51, p. 177, Apr. 27, 

1950.

Needham, Albert Booth.

Investigation of mica deposits at the White Bear, Silver Dollar, Buster Dike, 

and Hot Shot mines, Custer County, S. Dak.: U. S. Bur. Mines Rpt. 

Inv. 4693, 54 p. ($), illus., June 1950. The. development and geology 

of the 4 mica pegmatite deposits in the southern Black Hills are described briefly. The major part of the report consists of detailed mineral 

descriptions of 11 diamond drill holes. V. S.

Neely, Florence E.

A new seed from Illinois [abs.]: Am. Jour. Botany, v. 37, no. 8, p. 673, Oct. 

1950.

Neilson, James M.

Preliminary report on Te'miscamie Mountains map-area, Mistassini Territory: 

Quebec Dept. Mines, Geol. Surveys Br., Prelim. Rpt. 238, 8 p. (t), geol. 

map, 1950. Brief report on the pre-Cambrian rocks, consisting of the 

pre-Mistassini intrusives and the Mistassini series, and structure in the 

T6miecamie Mts. area, northeast of Lake Mistassini, northern Quebec.
196 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Nelson, D. O.

Method of eliminating gypsum from samples: Micropaleontologist, v. 4, no. 3, 

p. 21, July 1950. Gypsum in foraminiferal residues can be eliminated 

by heating the sample in a supersaturated sodium chloride solution and 

then washing through a screen.

Nelson, John Marshall. See McKelvey, V. E., 2.

Nelson, Lloyd Alvino.

 Franklin Mountains, in West Texas Geological Society Guidebook, 1950 Field 

Trip, October 7-8, 1950, p. 37-39, illus., 1950. Brief notes on the rocks 

of the Franklin Mts. north of El Paso, Texas. A columnar section Is 

shown.

Nelson, Reuben Andrew. See Stead, F. W., 1.

Nelson, Vincent Edward.

(and Wood, E. Boyne). Preliminary reports on iron resources of western 

Kentucky: Ky. Geol. Survey Rpt. Inv. 1, 7 p. (t), 1949. The brown 

limonitic iron ores of western Kentucky, between the Cumberland and 

Tennessee Rivers, are described briefly. Notes on past production are 

given, reserves are estimated, and it is concluded that the ore is not 

likely to be of economic value.

Nelson, W. B. See Fix, P. F.

Nelson, Wilbur Armistead.

Structure and stratigraphy of the Blue Ridge Mountain area of Albemarle and 

adjacent counties, Virginia [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1491, Dec. 1950.

Nelson, Willis H. See Mackin, J. EL,'8.

Nesbitt, Robert H.

The work of the geologist in civil engineering: Ohio State Univ., Eng. Expt. 

Sta. News, v. 22, no. 2, p. 4-8, 23-25, illus., Apr. 1950. The usefulness of 

geology to engineering is demonstrated by a description of its application to dam construction. Seismograph exploration, diamond-core borings, and petrographic data provide the answers to many questions on 

the foundations, rock stress, and construction design.

Nettleton, Lewis Lomax. See also Goldstone, F.

On the use of geophysical tools: Mines Mag., V. 40, no. 10, p. 49-52, Oct. 1950. 

'A review of the fundamentals of three geophysical methods magnetic 

Surveys, gravity surveys, and reflection seismograph surveys in their 

application to geologic exploration.

New Hampshire State Planning and Development Commission.

Surficiai geology of New Hampshire. Scale 1:250,000 or about 1 inch to 4 

miles. Concord, N. H. 1950. A single sheet map showing distribution 

of ground moraine, Stratified sand, silt and gravel deposits, boulder 

trains, and drumlins. Other features indicated are direction of glacial 

striae, varved clay localities, and cirques.

New Mexico Geological Society.

GuidebooK ot tixe s«.n juttn Basin. New Mexico and Colorado, first field conference, November 3-5, 1950. 153 p., mus., 1000. T^O suiaebook contains, in addition to papers and maps Which are Cited under the individual authors, road logs, maps, cross sections, and information on oil 

and gas development.

Newmarch, Charles B.

The correlation of Kootenay coal seams: Canadian Min. Met. BUU. no. 455, 

p. 141-148, illus., Mar. 1950; Canadian Inst. Mining and Metallurgy 

Trans., v. 53, p. 91-98, 1950. The methods used in correlation of 

Kootenay coals of the Crowsnest area, British Columbia, are summarized. 

A new method, spectrographic ash analysis of trace element content of 

each coal seam, is outlined and applied. The elements most useful in 

correlation are Na, Ba, Si, V, Mg, Ni, Sr, and Al. V. S.
BIBLIOGRAPHY 197

Nichols, Herbert B.

Sedimentation studies at Lake Mead: Earth Sci. Digest, v. 5, no. 1, p. 13-22, 

illus., Aug. 1950. Describes the procedures and techniques that were 

used in studies at Lake Mead, the artificial lake behind Hoover Dam 

on the Colorado River. Studies were made to determine (1) the amount 

of silting, and (2) how much and what kind of salts are being drawn out 

of the rocks through chemical action at new ground water levels. The 

results of the investigations are given briefly.

Nicol, David.

Origin of the pelecypod family Glycymeridae: Jour. Paleontology, v. 24, no. 1, 

p. 89-98, illus., Jan. 1950. "The Glycymeridae evolved from a cucullaeid 

stock probably during late Jurassic time. A study of the morphologic 

characters of both families proves that they are remarkably similar, 

particularly when Cretaceous species are considered. The chronogenetic and geographic evidence confirms the data shown by the 

morphologic characters."

Nielsen, Eigil.

Studies on Triassic fishes, II: Meddelelser om Gr0nland, Bd. 146, no. 1, 309 

p., illus., 1949; Copenhague Univ. Mus. Miner. G6ol., Commun. Pale"on. 

no. 71, 1949. Comprehensive descriptions of Australosomus IcocM, A. 

simplex, n. sp., A. pholidopleuridcs, n. sp., and Birgeria, groenUvndica, 

chiefly from the Kap Stosch and Hird Bay areas, East Greenland.

Nielsen, Merrill L. See Youngquist, W. L., 2. 

Nikiforoff, Constantin C. See Hack, J. T. 

Nininger, Addie Delp. See Nininger, H. H., 1.

Nininger, Harvey Harlow.

1. (and Nininger, Addie Delp). The Nininger collection of meteorites; a 

catalog and a history. 144 p., illus. Winslow, Arizona, American 

Meteorite Museum.. 1950. The Nininger collection of meteorites is the 

result of intensive collecting that has been carried on since 1923 and 

now contains specimens representing 587 falls. The factual data for 

the specimens type, weight, date and locality of discovery are given, 

together with field notes for many of them. Numerous illustrations are 

included. '

2. Structure and composition of Canyon Diablo meteorites as related to zonal 

distribution of fragments : Pop. Astronomy, v. 58, no. 4, p. 169-173, illus., 

Apr. 1950. Investigations have shown a definite relationship between 

internal structures and location of the meteorite fragments at Barringer 

Crater, Arizona. Fragmentation took place, due to unequal distribution 

of brittle minerals, as the meteor entered the lithosphere, resulting in 

localized explosions and consequent differences between the outlying 

meteorites and those nearer to the crater rim.

Nishimura, Eiichi.

On earth tides: Am Geophys. Union Trans., v. 31, no. 3, p. 357-376, illus., 

June 1950. Discusses the rigidity of the upper mantle of the earth, the 

particular motion of the earth's surface near an active fault, rigidity 

of the earth as a whole, tidal variation of latitude, time variation of 

the elasticity of the earth's crust, and elastic anisotropy of the upper 

mantle of the earth.

'Nixon, Earl K.

1. Oil and gas, in Geology and ground-water resources of Barton and Stafford 

Counties, Kansas: Kans. Univ., State Geol. Survey Bull. 88, p. 21-35, 

illus., 1950. Tabulates the principal features of the oil and gas pools 

of Barton and Stafford Counties in central Kansas.
198 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Nixon, Earl K. Continued

2. (and Runnels, Russell T., and Kulstad, Robert O.). The Cheyenne sandstone of Barber, Comanche, and Kiowa Counties, Kansas, as raw material for glass manufacture: Kans. Univ., State Geol. Survey Bull. 

86, pt. 3, p. 41-84, illus., Oct. 30, 1950. Laboratory investigations involving chemical, mechanical, mineralogic, .and spectrographic analyses 

indicate that the Cheyenne sandstone meets the standards for glass 

sand. The data are presented, together with comments on the reserves 

and economic aspects.

Noble, James Alexander.

1. Ore mineralization in the Homestake gold mine, Lead, South Dakota: Geol. 

Soc. Am. Bull., v. 61, no. 3, p. 221-252, illus., Mar. 1950. Mineralization at the Homestake mine can be subdivided into four stages, separated 

by structural breaks, with gold deposited during the last stage. The 

ore bodies are replacements of the pre-Cambrian Homestake formation 

at the intersection of folds, with localization of the ore believed due to 

the permeability produced by dilatation of the schists. The age and 

sequence of the mineralization, and why the gold is confined to the 

Homestake formation are still unanswered questions.

2. Manganese on Punta Concepcion, Baja California, Mexico: Econ. Geology, 

v. 45, no. 8, p. 771-785, illus., Dec. 1950. Veins of pyrolusite and other 

minerals are found in Miocene volcanics, intrusives, and Pliocene strata 

at Punta Concepcion, on the eastern side of Baja California peninsula. 

The veins are considered to be of primary hydrothermal origin. The 

rocks, deformation, and mineralization are described and discussed.

Nolan, Thomas Brennan.

The search for new mining districts: Econ. Geology, v. 45, no. 7, p. 601-608, 

illus., Nov. 1950. Presidential address, delivered to the Society at the 

El Paso meeting, November 1949. Consideration is given to the search 

for hypogene mineral deposits related to igneous activity, and several 

ideas concerning possible distribution are put forth. The usefulness of 

detailed geologic mapping, reconnaissance geophysical work, geothermal 

gradient measurements, and geochemical prospecting is discussed.

Noriega, Jose F.

Los recursos petrollferos: Soc. Mex. Geog. Est. Bol., v. 68, nos. 1-2, p. 63-79. 

Jnly-Oct. 1949. General discussion of petroleum reserves of Mexico.

Norman, L. A., Jr. See Hoppin, R. A.

Norris, Stanley Eugene. 

The water resources of Green County, Ohio: Ohio Water Res. Bd. Bull. 19,

52 p. ($), illus. incl. geol. maps, Jan. 1950. A detailed report on the 

availability and quality of both ground and surface water in Greene 

County, Ohio. Conditions in several specific areas within the county 

are discussed. The section on surface water was written by William P.

Cross, and that on the Wisconsin glacial deposits, including the surficial

geology map, is by Richard P. Goldthwait. 

Northrip, Gerald Albert.

North Pauls Valley field, Garvin County, Oklahoma: Tulsa Geol. Soc. Digest, 

V. 18, p. 65-66,1950. Brief notes on the structure and the Ordovician and 

Pennsylvanian producing horizons of the North Pauls Valley oil field,

Oklahoma.

Northrop, Stuart Alvord. See also Bass, N. W., 2; Colbert, E. H., 1.

General geology of northern New Mexico, in Guidebook for the fourth field

conference of the Society of Vertebrate Paleontology in northwestern

New Mexico^ p. 26-47, illus., 1950. Discusses general features, stratigraphy, structure, ancl economic geology of northern New Mexico. A

generalized geologic section and bibliography are included.

Norton, James Jennings. See Page, L. R., 3.
BIBLIOGRAPHY ' 199

Nuffield, Edward Wilfrid.

Preliminary report on the geology of part of Township 29, Range XIV, District 

of Algoma: Ontario Dept. Mines Prelim. Rpt. 1950-5, 6 p. (t), geol. map, 

1950. The area of Township 29, on the east shore of Lake Superior, is 

characterized by pre-Cambrian Algoman (?) granites and pegmatites 

cut by Keweenawan diabase^ dikes, and shows radioactive anomalies 

over both rocks and dikes, the best known of which are at Theano 

Point. The anomalies over dikes are due to pitchblende deposited by 

hydrothermal solutions in diabase cracks, fractures, and contacts with 

granites. . V. S.

Nunez Jimenez, Antonio.

Temas espeleo!6gicos Bol. Historia Nat., v. 1, no. 3, p. 105-112 (t), Nov. 1950. 

A popular account of ground waters, their role in forming caverns and 

subterranean terraces, the evolution of caverns in limestone, and the 

origin of caverns in Cuba. V. S.

Nuttli, Otto W.

The western Washington earthquake of April 13, 1949 [abs.]: Earthquake 

Notes, v. 21, nos. 1-2, p. 9, Mar.-June 1950.

Oakes, Malcolm Christie.

Mapping the Missouri-Virgil boundary in northeast Oklahoma tabs.] : Am. 

Assoc. Petrol. Geol. Bull., v. 34, no. 3, p. 620, Mar. 1950; Tulsa Geol. Soc. 

Digest, v. IS, p. 67, 1950.

Oakeshott, Gordon Blaisdell.

1. Geology of the Placerita oil field, Los Angeles County, California: Calif. 

Jour. Mines and Geology, v. 46, no. 1, p. 43-79, illus., Jan. 1950. Oil 

accumulation is considered conditioned mainly by the Placerita anticline, 

and the San Gabriel fault and the folds associated with it. The area 

is one of Tertiary sediments, including organic shales, dipping off very 

much older crystalline rocks. V. S.

2. Southern coastal region [Calif.], in Symposium on possible future oil provinces of the Pacific Coast region [abs.]: Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 12, p. 2384, Dec. 1950.

3. Southern mountain region [Calif.] [abs.], in Symposium on possible future 

oil provinces of the Pacific Coast region: Am. Assoc. Petrol. Geol. Bull., 

v. 34," no. 12, p. 2384-2385, Dec. 1950.

Obert, Leonard.

(and Duvall, Wilbur I.). Generation and propagation of strain waves in 

rock, Part 1: U. S. Bur. Mines Rpt. Inv. 4683, 19 p. ($), illus., May 1950. 

The generation and propagation of strain waves in greenstone, produced 

by an explosive at distances of 2 to 54 feet, were studied by means of 

strain gages and recording equipment. Variations of pulse characteristics are analyzed in the records, and physical properties and a petrographic description of the greenstone are included. V. S.

Oborne, Harry W.

Eastern Colorado oil and gas prospects [abs.]: Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 3, p. 623, Mar. 1950.

O'Brien, J. C.

Mines and mineral resources of Yolo County: Calif. Jour. Mines and Geology, 

v. 46, no. 3, p. 421-436, illus., July 1950. The mineral resources of Yolo 

County, in the Sacramento Valley, California, are mainly mercury, 

construction materials, and natural gas. They are briefly described 

and mapped, with a listing of mining properties. V. S.

O'Brien, W. A.

(and Donnay, Joseph De'sire' Hubert). Crystal optics on microscopic views 

a monoclinic case [abs.]: Am. Mineralogist, v. 35, nos. 1-2, p. 129, Jan.- 

Feb. 1950. 

Ode, William Harlan. . See Selvig, W. A,
200 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Odell, Noel Ewart.

1. Notes on the geology of the St. Elias Range, Alaska-Yukon Territory, North

America: Geol. Soc. London Quart. Jour., v. 106, pt. 1, no. 421, p. 137-

139, 1950; Abstracts of Proceedings, no. 1461, p. 92-93, Mar. 28, 1950.

Preliminary report on the geological work accomplished during the

. 1949 field season of "Project Snow Cornice".

2. Yukon-Alaska expedition of the Arctic Institute of North America: Nature 

, (London), v. 165, no. 4192, p. 337-338, Mar. 4, 1950. A brief description 

of the 1949 field season of the "Project Snow Cornice" in the St. Elias 

Range on the Canadian-Alaskan boundary. Examination of the bedrock 

of the area indicates that the St. Elias Range consists primarily of 

metamorphosed sediments, probably of Paleozoic and Mesozoic age, and 

granitic and dioritic intrusives. Pleistocene glacial deposits are also 

present at high elevations.

Oder, Charles Rollin Lorain.

(and Hook, John W.). Zinc deposits of the southeastern states, in Snyder, 

F. G., ed., Symposium on mineral resources of the southeastern United 

States, p. 72-87, illus., 1950. The occurrence, mineralogy, and origin 

of the zinc ores in the Mascot-Jefferson City district, Tennessee, are 

described in detail, and of the ores in Austinville district in Virginia 

briefly. Several other districts are mentioned. A columnar section of 

the Cambrian and Ordovician formations in the east Tennessee-southwest Virginia area and an extensive bibliography are included.

O'Donnell, Hugh John. See Selvig, W. A.

Odum, Howard T.

Strontium biogeocheniistry, ecosystems, and paleoecological tools: Natl. Research Council, Report of the Committee on a treatise on marine ecology 

and paleoecology, 1949-1950, no. 10, p. 55-58, Nov. 1950. Outlines and 

discusses the study of the strontium cycle and indicates the application 

of strontium analyses of fossil materials to paleoecologic problems.

Oelrich, Thomas M.

A new Tesiu&o from Madison County, Montana: Mich. Univ. Mus. Paleontology Contr., v. 8, no. 4, p. 43-58, illus., May 31, 1950. Describes the 

new species, Testudo primaeva, from the vicinity of Sweetwater Creek, 

Madison County, Montana. The specimen is of probable Lower Miocene 

age.

Ogden, W.M.M. See Kennedy, G. C., 2. 

Ogle, Burdette A. See Manning, G. A.

Ogryzlo, Stephen Peter. ,,

(ancl Thomson, James Edgar). Geology of the Toburn mine: Ontario Dept. 

Mines Ann. Rpt., 194S, v. 57, pt. 5,% p. 184-188, illns., 1950. Describes the 

development, general geology, Structure, and ore mineralization of the 

Toburn goia mine in the KirkJand Lake area, northern Ontario.

Ohle, Ernest Linwood, Jr.

influence of permeability on ore distribution in limestone and dolomite [abs.]:

GeOl. SOC. Am. Bull., v. 61, no. 12, pt. 2, p. 1491-1492, Dec. 1950. 

Ohsiek, L. E. See Krumbein, W. C., 3.

Oklahoma City Geological Society.

Guidebook, field conference in eastern part of the ouacnita fountains m

Oklahoma, with special reference to the pre-Pennsylvaniail EDd lower 

Pennsylvanian rocks. 39 p., illus. inci. geoi. maps, NOV. 1950. The conference took place NOV. 4-5,1950. The guidebook contains a discussion 

Of the Stratigraphy ot tne area, road logs, columnar sections, and 

bibliography.
BIBLIOGRAPHY 201

Okulitch, Vladimir Joseph.

1. Vacuooijathus, a new name for Coelocyathus Vologdin, 1933: Jour. Paleontology, v. 24, no. 3, p. 392-393, May 1950. The name Vacuocyathus is 

proposed for Coelocyathus Vologdin, 1933, preoccupied by Coelocyathus 

Schluter, 1886, and by C. Sars, 1857. V. S.

2. Nomenclatural notes on pleosponge genera Archaeocyathus, Spirocyathus, 

Flindersicyathus, Pycnoidocyathus and Cambrocyathus: Jour. Paleontology, v. 24, no. 3, p. 393-394, May 1950. Considers Archaeocyathus 

as the type genus of the Archaeocyathiclae (Spirocyathus and Flindersicyathus as synonyms) and Pycnoidocyathus the type genus of the 

Pycnoidocyathidae (Cambrocyathus as synonym). V. S.

3. Monocyathus Bedford versus Archaeolynthus Taylor: Jour. Paleontology, 

v. 24, no. 4, p. 502-503, July 1950. Monocyathus Bedford is upheld 

against W. Simon's substitution of Archaeolynthus Taylor, and Simon's 

inclusion of Rhabdocnema and Ventricitlocyathus in the latter genus is 

criticized. " V. S.

4. Pluralicyathus, new name for Polycyathus Vologdin, 1928, not Duncan, 

1876: Jour. Paleontology, v. 24, no. 4, p. .503, July 1950. A new name 

PhiraUcyathus is proposed for Polycyathiis Vologdin, invalidated by W. 

Simon in 1939, and his view that Archaeocyathelliis is cogeneric is 

criticized. V. S.

5. Lower Cambrian fossils from near Addy, Washington [abs.] : Geol. Soc. Am. 

. Bull., v. 61. no. 12, pt. 2, p. 1540, Dec. 1950.

Oliphant, Charles W.

Comparison of field and laboratory measurements of seismic velocities in 

sedimentary rock: Geol. Soc. Am. Bull., v. 61, no. 7, p. 759-787, illus., 

July 1950. Determination of composition of rocks by field and laboratory study of seismic wave velocities is applied to near-surface, sedimentary rocks. Field and laboratory measurement of 2 types of wave 

velocities combined with information on the nature of the material, all 

determined independently, test the validity of the work. The field work 

was carried on in Osage County, Oklahoma, in Pennsylvanian limestones 

and shales. Equipment and procedure in both the field and laboratory 

study are described. Conclusions are drawn.

Olmsted, Franklin H.

Geology and oil prospects of western San Jose Hills, Los Angeles County, 

California: Calif. Jour. Mines and Geology, v. 46, no. 2, p. 191-212, 

illus. incl. geol. map, Apr. 1950. The stratigraphy and structure of 

western San Jose Hills, 25 mile's east of Los Angeles, are described. 

The folding suggests oil possibilities in the southern of the two local 

anticlines. A bibliography is given. V. S.

Olsen, Frederick Russell.

The fluorine content of some Miocene horse bones: Science, v. 112, no. 2917, p. 

620-621, Nov. 24, 1950. Lower Miocene horse bones from Gilchrist 

County, Florida, were analyzed for fluorine content. The method of 

analysis is described, the results are tabulated, and the significance is 

discussed.

Olson, Everett Claire.

The temporal region of the Permian reptile Diadectes: Fieldiana; Geology, 

v. 10, no. 9, p. 63-77, illus., Sept. 29, 1950. The interpretation of the 

.temporal region presented in 1947, which recognized a complete series 

of temporal elements, has led to a restudy of a series of skulls, the 

results of which are presented. The recent study upholds the earlier 

conclusion that a complete series of temporal elements is present in 

Diadectes.

Olson, Jerry Chipman.

Feldspar and associated pegmatite minerals in New Hampshire: N. H. State 

Plan. Dev. Comm. Mineral Res. Survey, Pt. 14, 48 p., illus., 1950. The 

properties, uses, mining, and milling of feldspar and other pegmatite 

minerals are described. The occurrence, size, shape, mineral composition, and areal distribution of pegmatites are discussed. A bibliography 

is included.
202 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Olsson, Axel Adolf. See Pilsbry, H. A.

Omer, Guy C., Jr.

Volcanic tremor (Part 2,"The theory of volcanic tremor) : Seismol. Soc. Am. 

Bull., v. 40, no. 3, p. 175-194, illus., July 1950. "It is proposed that 

volcanic tremor originates in the vibration of laminae which are partly 

freed by the differential tilting of the surface of the earth around a 

volcanic vent during an eruption. The topographic evidence around 

Kilauea caldera is examined, and a probable range of the free vibrating 

lengths is determined. The various possible modes of vibration are 

considered, and it is concluded that longitudinal vibration would best 

explain the observed seismograms."

Ontario Department of Mines.

1. Township of Osway, District of Sudbury, Ontario. Map no. 1949-2. Scale 

1:12,000 or 1 inch to 1,000 feet. [1949?}. Colored geologic map of an 

area of pre-Cambrian rocks.

2. Gullwing Lake-Sunstrum area, District of Kenora, Ontario. Map no. 1950- 

2. Scale 1: 63,360 or 1 inch to 1 mile. [1950?]. Colored geologic map 

of an area of pre-Cambrian, Pleistocene, and Recent rocks.

Ordonez, Ezequiel, 1867-1950.

Actividad del volcan de Paricutin durante el ano de 1947: Comision Impulsora 

y Coordinadora de la Investigacion Cientiflca, Anuario 1947, p. 145-155, 

illus. Mexico, D. F., 1949. The activity of Paricutin volcano during 1947 

is described.

Oriel, Steven S.

Geology and mineral resources of the Hot Springs window, Madison County, 

North Carolina: N. C. Dept. Conserv. Dev., Div. Mineral Res. Bull. 60, 

70 p., illus. incl. geol. map, 1950. Describes the Cambrian strata, beds 

of unknown age, and the pre-Cambrian crystalline complex. The 

faulted structure of the area is discussed, and the origin of the Hot 

Springs window is compared to that of the Engadine window in Switzerland. The barite, shale, other mineral resources, and hot springs are 

considered. The geologic map is colored and drawn to a scale of 1 inch 

to 2,000 feet.

Orr, James B. See Macdonald, G. A., 1.

Oeborn, Elburt Franklin. See also Counts, W. E.; Roy, D. M.; Roy, R.; Schairer, 

.1. F., 1.

1. Segregation Of elements during the Crystallization Of a magma : Am. Ceramic soc. jovlr., v. 33, no. 7, p. 219-224, uius., July 1,1950, The manner

in Which ions segregate during the long period of cooling and crystallization of a magma in the earth's crust, whereby rock bodies varying widely 

in composition are formed, is discussed from the standpoint of composition Of liquid, temperature, and the properties o£ the ions."

2. (and DeVries, R C and Tait, D. B.). Invariant points in the quaternary 

SyS^oT1 ^a°~^i?~Al203~Si°2 t*1353 - 3 : Am- Ceramic Soc. Bull., V. 29, DO. 3,

p. 128, Mar. 1950. '

Osborne, Freleigh Fitz. See also Wahl, W. G.

1 VentifaCtS at MOnt Carmel, Quebec: Royal Soc. Canada Trans., 3d ser., v.

44, sec. 4, p. 41-49, uius., June 1950; abs., Proc,, 3d ser,, Y, 44, p. 229,

1950. Mont Carmel, a 650-foot hill on the St. Lawrence lowland near Trois Rivieres, Quebec, is composed of sand and gravel, it is n0t a 

residual, but rather originated as a part Of a delta formed when marine

Waters encroached on the ice-filled St. Lawrence Valley. Wind WOFK 

has since produced dunes and faceted Stones on its upper surface.

2. (and Archambault, Maurice). Hisingerite from Montauban-leS-MlneS: 

NatUraliSte Canaclien, v. 77, nos. 9-10, p. 283-290, Sept.-Oct. 1950; abs

Royal Soc. Canada Proc., 3d ser., V. 44, p. 228,1950. Describes hisingerite from the T&reault mine in the Montauban-les-Mines area, Quebec. 

Physical, chemical, and optical data are given, and the origin is 

discussed.
BIBLIOGRAPHY 203

Osborne, Freleigh Fitz Continued

3. Marine crevasse fillings in the Lotbiniere region, Quebec: Am. Jour. Sci., 

v. 248, no. 12, p. .874-890, illus., Dec. 1950. "Peculiar ridges in an extensive region on the south shore of the St. Lawrence River near Quebec 

are the result of the filling of crevasses in drift-burdened and stagnant 

ice by sands and gravels of a late Pleistocene sea." The origin is discussed in its bearing on the extent and duration of the ice and the 

Pleistocene sea level. V. S.

Osmond, John C., Jr.

Becent small-scale deformation of limestone strata, Concho County, Texas: 

Am. Assoc. Petrol. Geol. Bull., v. 34, no. 8, p. 1743-1747, illus., Aug. 

1950. Describes the recent buckling of exposed Leuders limestone of 

the Permian Wichita group in Concho County, Texas, resulting in an 

arcuate ridge 10 feet high, 40 feet wide, and 1,000 feet long. Local 

alternation of thin limestone and shale strata is considered the cause.

V. S.

Osorio Tafall, Bibiano F.

La Isla de Cedros, Baja California: Soc. Mex. Geog. Est. Bol., v. 66, no. 3, 

p. 317-402, illus. incl. geol. map, Nov.-Dec. 1948. An areal study of 

Cedros Island, off the west coast of Lower California, Mexico, of which 

five pages are devoted to geology. The generalized geologic map shows 

pre-Cretaceous rnetamorphics, Mesozoic intrusives, Cretaceous and Tertiary sedimentary strata, and Quaternary volcanics.

O'Sullivan, Robert B. See Walton, M. S., Jr.

Ousdal, Asbjorn P.

Microscopic study of fractures in unidentified fossil algae discovered in silicified slate [abs.]: Am. Jour. Botany, v. 37, no. 8, p. 674, Oct. 1950.

Overbeck, Robert Milton.

Southern Maryland, in The coastal plain geology of southern Maryland: Johns 

Hopklns Univ. Studies in Geology, no. 16, pt. 3, p. 111-15 to 111-56, 

illus. incl. geol. maps, 1950. The Cretaceous and Tertiary formations 

exposed in southern Maryland are described in a guidebook prepared 

for the Geological Society of America field trip in November 1950. Road 

logs are given and route maps show the geology.

Overholt, J. L.

(and Vaux, G., and Rodda, J. L.). The nature of "arizonite": Am. Mineralogist, v. 35, nos. 1-2, p. 117-119, Jan.-Feb. 1950. X-ray data show 

"arizonite," Fe2O3 -3Ti02 , to be an impure mixture of hematite, ilmenite, 

anatase, and rutile, probably weathered ilmenite. V. S.

Ovey, C. D.

Dr. J[oseph] A[ugustine] Cushnran [1881-1949]: Nature (London), v. 163, 

no. 4155, p. 944, June 18, 1949.

Oxley, Philip.

Chazyan stratigraphy west of the Champlain thrust, New York and Vermont 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1492, Dec. 1950.

Pabst, Adolf.

1. A structural classification of fluoaluminates: Am. Mineralogist, v. 35, nos. 

3-4, p. 149-165, illus., Mar.-Apr. 1950. The examination of ten known 

structures, illustrated by diagrams, leads to distinguishing seven classes 

of octahedral linkage: separate octahedra, chains, interrupted sheets, 

sheets, interrupted frameworks, and two distinct patterns of framework. 

The derived generalized types of AlPo structure are described and compared with those of silicates. V. S1.

2. X-ray examination of uranothorite [abs.]: Geol. Soc. Am. Bujl., v-. 61, no; 12, 

pt. 2, p. 1492-1493, Dee. 195Q,
Page, Benjamin Markham.

Geology of the Broadway Tunnel, Berkeley Hills, California: Econ. Geology, 

v. 45, no. 2, p. 142-166, illus., Mar.-Apr. 1950. A "case history" of the 

Broadway highway tunnel, near Oakland, California, in which the 

stratigraphy, structure, and petrology of Miocene and Pliocene formations are considered from the engineering geology standpoint. V. S.

Page, Lincoln Ridler. See also Hanley, J. B.

1. Beryllium in Colorado: Mining Yearbook, p. 37, 39-40, illus., Colo. Min. 

Assoc., Denver, Colo. 1950. Describes the various types of beryl concentrations in pegmatite deposits and the localities in Colorado that 

have produced beryl.

2. Uranium in pegmatites: Econ. Geology, v. 45, no. 1, p. 12-34, illus., J'an.- 

Feb. 1950. Describes the uranium and rare-earth minerals that are 

common accessory constituents of pegmatites, usually those rich in 

potash feldspar. The mineral content can generally be estimated with 

sumcient accuracy for development, although in the United States no 

pegmatites have been found rich enough for exploitation for uranium 

only. V. S.

3. (and Norton, James Jennings). Methods used to determine grade and 

reserves of pegmatites [abs.]: Econ. Geology, v. 45, no. 4, p.' 387-388, 

June-July 1950.

Page, Thornton.

The origin of the earth: Smithsonian Inst. Ann. Rpt. 1949, p. 161-174, illus., 

1950. A re'suin6 and discussion of the various hypotheses of origin, 

both from the geological and astronomical points of view.

Palache, Charles. See also Frondel, C., 1.

1. Fayalite at Eockport, Massachusetts: Am. Mineralogist, v. 35, nos. 9-10, 

p. 877-881, illus., Sept.-Oct. 1950. "The facts are collected concerning 

the place and mode of occurrence of fayalite at four localities on Cape 

Ann, Mass., with a description of one of them which yielded the largest 

and best-developed crystals. All of these occurrences are in pegmatite 

Of a granitic nature but evidence is presented which seerns to show that 

all are xenoliths, genetically related tO a fayalite-bearing nordmarlute 

granite, older than and intruded by the dominant Rockpoi't granite."

2. Paralaurionite: Mineralogical Mag., v. 29, no. 211, p. 341-345, illus., Dec. 

1950. "Paralaurionite from a new locality, the Mammoth mine, Arizona, is described. X-ray study and chemical analysis confirm the 

original characteristics of the mineral as described in 1899 by G. F. 

Herbert Smith. Measurements are given which establish new forms on 

crystals from Arizona and also on crystals from a South American 

locality. A complete angle table for twenty-eight forms is presented."

Pangborn, Mark White, Jr,

The earth for the layman: Am. Geol. Inst. Rpt. 2, 50 p. (t), JUH6 1950. A 

bibliography of selected books and pamphlets (mostly non-technical) on

geology mining, rocks, minerals and gems, fossils, evolution and related 

sublet*. TK6 arrangement is by topics and geographically by states.

Pardee, Joseph ThomaS.

Late Cenozoic block faulting in western Montana : Geol goc Am Bull V 61 

HO 4 P 359-406, illUS. InCl. Sketch maps, Apr. 1950. The mountain

range's and basins of western Montana are distinguished into those

formed by block faulting and those produced by warping. Faulting 

occurred mainly during OligOCene-Pliocene time/ various biock-fanit

systems are described and shown in CrOSS Sections. A blDllOgraPfiy IS given. v. g.

Park, Charles Frederick, Jr.

Structure in the volcanic rOCkS Of the Olympic Peninsula, Washington [abs.] : 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1529, Dec. 1950.
BIBLIOGRAPHY 205

Parker, Garald Gordon.

(and Stringfield, Victor Timothy). Effects of earthquakes, trains, tides, 

winds, and atmospheric pressure changes on water in the geologic 

formations of southern Florida: Econ. Geology, v. 45, no. 5, p. 441-460, 

illus., Aug. 1950. Water levels in wells in southern Florida fluctuate 

not only from discharge and recharge, but also from the effects of 

earthquakes, trains, tides, winds, and atmospheric pressure. The effects 

of these factors are described and illustrated by graphs. V. S.

Parker, John Mason, 3d.

Feldspar and mica deposits of southeastern United States, in Snyder, F. G., 

ed., Symposium on mineral resources of the southeastern United States, 

p. 42-48, 1950. The type, strike and dip of the country rock of 16 

pegmatite districts in the southeastern states are tabulated. Other 

tables summarize the mineralogic, structural, and economic features 

of the pegmatites.

Parker, Travis J. See McDowell, A. N.

Parkert, C. W.

(and Perkins, Alfred T., and Dragsdorf, R. D.). Decomposition of minerals by 

grinding: Kans. Acad. Sci. Trans., v. 53, p. 386-397, illus., 1950. 

Kaolinite, montmorillonite, and muscovite were dry ground in a ball 

mill. The effect on average particle size, solubility, pH, base exchange 

capacity, thermal curves, and X-ray diffraction patterns is discussed. 

It is concluded that grinding permits the formation of amorphous materials differing from the original materials in chemical reactions and 

crystal structure.

Parks, Bryan C. See Hendricks, T. A., 1; Selvig, W. A.

Parry, V. F.

Production, classification, and utilization of western United States coals: Econ. 

Geology, v. 45, no. 6, p. 515-532, illus., Sept.-Oct. 1950. "This paper 

reviews and summarizes pertinent technical and economic facts relating to the utilization of western coals, and discusses classification of 

coal of interest to the chemical engineer. Average chemical analyses 

of coal produced in 44 mining fields are presented."

Parvis, Merle.

Drainage pattern significance in airphoto identification of soils and bedrocks: 

Highway Research Board Bull. 28, p. 36-62, illus., 1950; reprinted in 

Photogrammetric Engineering, v. 16, no. 3, p. 387-409, illus., June 1950. 

The report on the analysis of drainage patterns for their use in the identification of regional soils and bedrocks is the result of a study conducted by the Joint Highway Research Project at Purdue University. 

It is concluded that there is a high degree of correlation between the 

drainage patterns and the soils and bedrocks, and that the patterns 

recognized in airphotos can be relied on to aid airphoto identification 

of soils and bedrocks.

Paslay, L. C.

A single boat seismograph system [abs.]: Geophysics, v. 15, no. 1, p. 152, 

Jan. 1950.

Patterson, C. B.

(and Simmons, H. B.). Contribution .of model analysis to the solution of 

shoaling problems, in Applied sedimentation, p. 300-318, illus., 1950. 

Various problems of shoaling are discussed and illustrated by specific 

examples. Among these are shoaling in an open river (Pryors Island 

Reach, Ohio River), shoaling in a tidal stream (Deepwater Point Range, 

Delaware River, and Savannah Harbor), and shoaling of an entrance 

channel to a bay or estuary (Absecon Inlet, New Jersey).

Patterson, Charles Meade. See Kerr, P. F., 2. 

Patterson, Sam H., Jr. See Knechtel, M. M., 3. 

980682° 52 14
206 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Patterson, T. A.

The Missouri Ozarks: Mineralogist, v. 18, DOS. 7-8, p. 356, 358, July-Aug. 1950. 

Mineral collecting in McDonald County, southwestern Missouri, is 

described.

Patton, Howard Lewis.

Rangely oil field, in Petroleum geology of the Unita Basin: Guidebook to the 

Geology of Utah, no. 5, p. 127-133, illus., 1950. Brief summary of the 

stratigraphy, structure, and operations at the Rangely oil field, northwestern Colorado. A geologic formation table is included.

Patton, John B.

Character of sand in the Ohio River formation [Ind.] [abs.]: Ind. Acad. Sci. 

Proc., v. 59, p. 215, 1950.

Pauling, Linus Carl. See Lukesh, J. S. 

Peach, P. A. See Kennedy, G. C., 2. 

Peacock, H. G. See Hunt, R. N.

Peacock, Martin Alfred, 1898-1950.

1. (and McAndrew, John). On parkerite and shandite and the crystal structure of Ni3Pb2 S2 : Am. Mineralogist, v. 35, nos. 5-6, p. 425-439, illus., 

May-June 1950. Reviews previously determined spectrographic and 

X-ray data on parkerite and discusses the possibility of a natural parkerite series with end members bismuth-parkerite and lead-parkerite. It is 

proposed that the name parkerite be used for natural Ni3 (Bi,Pb) 2 S2 . 

Crystal structure data for shandite, NisPb2 S2 , from Trial Harbour, Tasmania, are also given.

2. Hauchecornite: Am. Mineralogist, v. '35, nos. 5-6, p. 440-446, May-June 

1950; abs., Geol. Soc. Am. Bull., v. 60, no. 12, pt. 2, p. 1913, Dec. 1949; 

Aon. Mineralogist, v. 35, nos. 3-4, p. 287-288, Mar.-Apr. 1950. Supplementary study of hauchecornite, originally described in 1893 but subsequently considered a mixture, confirms it as a definite mineral species. 

Physical, optical, and X-ray data are given.

3. Remarks on crystallographic nomenclature: Am. Mineralogist, v. 35, nos. 

9-10, p. 882-888, Sept.-Oct. 1950. "In special cases the lattice (not 

structure) of a crystal in any system may be indistinguishable from 

the lattice typical of any higher system. Thus it is formally better to 

define and name the systems on the basis of symmetry (as groups of 

Classes) ; for this purpose a set of self-explanatory names and symbols 

is proposed."

4. Studies of mineral sulpho-salts; XV. Xanthoconite and pyrostilpnite: MineralOgical Mag., V. 29, no. 211, p. 346-358, illus., Dec. 1950. Optical and 

crystal structure data for xanthoconite, 3Ag2 S.As2 S3 , and pyrostilpnite, 

3Ag2 S.SbzS3 , are given.

Peale, Rodgers.

. Mining geology and exploration: Min. Cong. Jour., v. 36, no. 2, p. 77-81, 88, 

illus., Feb. 1950. Recent research on processes of ore deposition, developments in techniques of ore search, and exploration for various 

metals in the United States and Canada are reviewed. Maintenance of 

the discovery rate depends on further investigations of structure and 

mineralogy. V. S.

Pearl, Richard Maxwell.

New data on lossenite, louderbacklte, zepharovlchite, peganite, and gphaerite Am. Mineralogist, v. 35, nos. 11-12, p. 1055-1059, Nov.-Dec. 1950. Reexamination of material indicates that lossenite is a mixture of scorodite

and beudantite, that louderbackite is identical with 1'Oemei'ite, tflEt

zepharovichite is probably identical with waveinte, that sphaerite is

probably identical with variscite, and confirms the identity Of 

with variscite as previously suggested by Larsen and Schaiier.
BIBLIOGRAPHY 207

Pearse, Arthur Sperry.

,The emigrations of animals from the sea. xii, 210 p., illus. The Sherwood 

Press, Dryden, New York. 1950. The chapters cover the origin of life, 

the sea as the original home of life, routes from the sea, causes of 

emigration from the sea, how the animals have changed, and what 

animals have attained on land. An extensive bibliography is given.

Pecora, William Thomas. See also Bannerman, H. M.; Brown, R. W., 1.

(and Fahey, Joseph John). The lazulite-scorzalite isomorphous series: Am. 

Mineralogist, v. 35, nos. 1-2, p. 1-18, illus., Jan.-Feb. 1950. "The lazulite-scorzalite isomorphous series expressed by the oxide formula 

(Mg, Fe")O.Al2Os.P205 .H2O is established in this paper on the basis 

of chemical analyses, indices of refraction, and specific gravity of eight 

selected specimens." The name calcium lazulite is discredited. Geological occurrences are classified, and distribution is noted. V. S.

Pegau, Arthur August.

Geology of the titanium-bearing deposits in Virginia, in Snyder, F. G., ed., 

Symposium on mineral resources of the southeastern United States, 

p. 49-55, illus., 1950. The various types of occurrence of ilmenite and 

rutile, recent production data, and theories of origin are presented. 

The rutile-bearing anorthosite body in Nelson and Amherst Counties is 

described briefly.

Peltier, Louis Cook. See also Lowdermilk, W. C.

The geographic cycle in periglacial regions as it is related to climatic geomorphology: Assoc. Am. Geographers Annals, v. 40, no. 3, p. 214-236, illus., 

Sept. 1950; abs., no. 2, p. 135-136, June 1950. An area of a particular 

climate will have its own assemblage of geomorphic processes and therefore its own geomorphic features. Nine such morphogenetic regions are 

designated: glacial, periglacial, boreal, maritime, selva, moderate 

("normal"), savanna, semi-arid, and arid. The periglacial region and 

the development of polygenetic topography, in Pennsylvania and Missouri, are discussed.

Pelzer, Ernest E.

The Rankin-Inlet nickel-copper deposit; a microscopic study: Canadian Min. 

Jour., v. 71. no. 9, p. 79-83, illus., Sept. 1950. "A mineragraphic study 

of the Rankin Inlet [west side of Hudson Bay, Canada] sulfides reveals 

the presence of magnetite, pyrrhotite, pentlandite, chalcopyrite, pyrite, 

marcasite, violarite, and possibly gersdorfBte. The textural relationships indicate a magmatic origin for the principal minerals. Some 

pyrite may have been introduced hydrothermally, and inarcasite and 

violarite have formed as supergene alteration products of pyrrhotite 

and pentlandite respectively."

Pence, Forrest K.

Characteristics of Texas ball clay near Troup: Texas Univ. Bur. Econ. Geology 

Pub. 5019, p. 39-51, illus., Oct. 1, 1950. Physical properties, thermal 

analysis data, X-ray diffraction data, and ceramic properties are presented.

Pendery, Carolyn H. See Herrick, C. E., 1, 2, 3.

Pennsylvania Academy of Science.

Symposium on mineral resources in Pennsylvania: Pa. Acad. gci. Proc., v. 24, 

p. 192-229, illus., 1950. The symposium covers coal, petroleum, metallic 

minerals, industrial minerals, and water resources. Papers by H. E. 

Rothrock, G. H. Ashley, W. S. Lytle, H. R. Gault, R. C. Stephenson, and 

J'. B. Graham are included.

Pepinsky, Ray. See Kinsolving, M. R.
208 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Pepper, James Franklin.

(and de Witt, Wallace, Jr.). Stratigraphy of the Upper Devonian Wiscoy 

sandstone and the equivalent Hanover shale in western and central New 

York: U. S. Geol. Survey Oil and Gas Inv. Prelim. Chart 37 (2 sheets). 

1950. Sheet 1 shows a colored outcrop map on a scale of 1 inch to 4 

miles, cross sections indicating facies changes, and a diagrammatic 

paleogeographic map. Descriptive notes of the stratigraphy, sedimentation, and paleogeography are also given. Sheet 2 consists of 

several detailed stratigraphic sections.

Perez Siliceo, Rafael.

(and Gallagher, David). Geologia del distrito mercurial de Huahuaxtla, 

Estado de Guerrero: Mexico Inst. Nac. Inv. Rec. Miner. Bol. 27, 30 p., 

illus. incl. geol. map, 1950. Spanish translation by Salvador Ulloa, of 

U. S. Geol. Survey Bull. 960-E, 1948. The stratigraphy, structure, and 

ore deposits of the Huahuaxtla mercury district, in southwest Mexico, 

are described. The strata are Upper Cretaceous shale and limestone 

formations that have been faulted. Black cinnabar is the chief ore 

mineral. The mineralization, age, and origin of the ore are discussed.

Perfetti, Jose N. See Kulp, J. L., 2,

Perini, Vincent Charles, Jr.

Some comments on Howard, Rotan, Royston and Round Top fields, Fisher 

County, Texas: Abilene Geol. Soc., Geol. Contr., p. 24-25, illus., 1950. 

Brief notes on the structure of the fields.

Perkins, Alfred Thomas. See Parkert, C. W.

Perlmutter, Nathaniel M. See also de Laguna, W., 2.

Geologic correlation of logs of wells in Long Island: N. Y. Water Power and 

Control Comm. Bull. GW-18, p. 3-24, 1949. The stratigraphic units 

found to be most practicable for hydrologic studies are described and 

correlated. They are the Raritan and Magothy (?) formations (Upper 

Cretaceous) and the Jameco gravel, Gardiners clay, and other deposits 

of Pleistocene age.

Perret, Frank Alvord, 1867-1943.

Volcanological observations: Carnegie Inst. Washington, Pub. 540, 162 P., 

illUS, 1950. The paper describes in detail observations of volcanic

activity in various parts of the world and is illustrated with numerous 

photographs. Consideration is given to the characteristics of solid 

volcanic formations, liquid flows, gaseous phases, ejectamenta, and 

electric, gravitational, seismic, and atmospheric phenomena. v. s.

Perrin, Rene.

L'oxygene en les calculs pe'trogi-aphiques, une discussion (with English summary) : Jour. Geology, V. 58, no. 2, p. 163-168, Mar. 1950. Processes of 

metamorphism and granitization by the action of solid diffusion are 

defended against I. T. Kosenqvist's criticism that diffusion in rocks is 

insufficient. V. S.

Perry, Eugene Sheridan.

1. THO Belt series of Montana: Billings Geol. Soc., First Annual Field Conference, Sept. 15-1T, 1300, p. 40-49, iii«s.. 1950. Contains a brief description, columnar section, correlation chart, and map snowing aiD«~«»*ti<«,

2. Highlights of geology between Three Forks and Whitehall: Billings ueol. 

Soc., First Annual Field Conference, Sept. 15-17, 1950, p. 56-59, geol. 

map, 1950. Contains brief notes on the stratigraphy and structure in 

the Three Forks-Whitehall area, Montana, a table of formations, and 

a geologic map. The area shows a continuous section from pre-Cambrian tO Tertiary, folding, faulting, unconformities, volcanic rocks, 

and intrusives.

3. The Butte mining district: Billings Geol. Soc., First Annual Field Conference, Sept. 15-17, 1950, p. 66-68, 1950. A brief literature review of the 

geology, mineralogy, and ore deposits of the Butte mining district, 

Montana.
> BIBLIOGRAPHY ' 209

Perry, 0. S.

(and Thomson, James Edgar). Geology of the Kirkland Lake gold mine: 

Ontario Dept. Mines Ann. Rpt., 1948, v. 57, pt. 5, p. 133-140, illus., 1950. 

Describes the development, general geology, structure, and vein mineralization at the Kirkland Lake gold mine in the Kirkland Lake ore 

belt, northern Ontario.

Peterson, Earl T.

The Ardrnore basin, geology and oil possibilities: World Oil, v. 130, no. 4, p. 

57-58, 60, 63-64, dllus., Mar. 1950. The Ardmore basin in Oklahoma 

is considered in its broader geosynclinal aspect; the deposition of 

Paleozoic sediments and their structural history is reviewed; the oil 

pools and producing formations are discussed; and future possibilities 

are found dependent on deep drilling. V. S.

Peterson, H. V.

The problem of gullying in western valleys, in Applied sedimentation, p. 407- 

434, illus., 1950. The distribution, mechanics, causes, and methods of 

control of gullying are described.

Peterson, Jahn Jean. See Spangler, W. B., 1.

Peterson, Nels Paul.

Arizona zinc and lead deposits; Lead and zinc deposits in the Globe-Miami 

district, Arizona: Ariz. Bur. Mines Bull. 156, Geol. Ser. 18, p. 98-112, 

illus., Apr. 1950. The geology, structure, and ore mineralization at 

several properties in the area are described.

Peterson, Victor Edwin.

The Ashley Valley oil field, in Petroleum geology of the Uinta Basin: Guidebook to the Geology of Utah, no. 5, p. 135-138, illus., 1950. The Ashley 

Valley field has produced gas commercially for several years, but is the. 

first commercial oil producer in Utah. The stratigraphy, structure, 

and production data are given briefly. The Weber sandstone (Pennsylvanian) is the producing horizon.

Petsch, Bruno Carl.

Magnetic surveys in South Dakota: S. Dak. Geol. Survey, Rpt. Inv. 66, p. 1-22, 

34-35, illus., Jan. 1950. Magnetic survey work since 1900 is summarized. 

The results, interpreted in the light of magnetic susceptibilities of bedrock and illustrated by maps, show low values on the pre-Cambrian in 

the Black Hills and higher values on the sediments of the great plains.

V. S. 

Pettijohn, Francis John.

Turbidity currents and graywackes, a discussion: Jour. Geology, v. 58, no. 2, 

p. 169-171, Mar. 1950. The origin of graywackes can be explained by 

such currents accounting not only for their many peculiarities, but also 

for accumulation of coarse material in deep waters. V. S.

Petty, Julian Jay.

Bibliography of the geology of the State of South Carolina: S. C. Univ. Pubs., 

ser. 2, Physical Sciences, Bull. 1, 86 p., 1950. Con tains^ more than 800 

references arranged alphabetically by author, followed by a subject 

index.

Pewe, Troy Lewis.

1. Origin of the upland silt in Fairbanks area, Alaska [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1493, Dec. 1950.

2. Relationship of permafrost to agriculture in the Fairbanks area, Alaska 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1571, Dec. 1950.

Peyton, Alexander L. See Jones, J. O.

Peyton, Garland.

The industrial minerals of Georgia: Ga. Geol. Survey Bull. 56, p. 1-10, 1950. 

A brief summary of the nonmetallic mineral resources of the areas of 

crystalline rocks, Paleozoic strata, and Coastal Plain sediments.
210 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Philbrick, Shailer Shaw.

Foundation problems of sedimentary rocks, in Applied sedimentation, p. 147- 

168, illus., 1950. Such problems as the appraisal of foundation material, laboratory testing of materials, calculation of safe bearing capacity, 

and permeability are considered. A section on the classification of 

sedimentary rocks, with notes on cyclic sediments and soluble rocks, 

is included.

Philpott, Thomas Hughes.

The Lower and Upper Cretaceous geologic histor-y of north Louisiana and 

south Arkansas [abs.]: Geophysics, v. 15, no. 1, p. 151, Jan. 1950.

Phleger, Fred B., Jr.

1. Offshore sedimentology, northwest Gulf of Mexico: Tulsa Geol. Soc. Digest, 

v. 18, p. 76, 1950. Features of Foraminifera distribution and sedimentation interpreted from traverses and cores in the northwest Gulf of 

Mexico are listed.

2. (and Walton, William R.). Ecology of marsh and bay Foraminifera, Barnstable, Mass.: Am. Jour. Sci., v. 248, no. 4, p. 274-294, illus., Apr. 1950. 

Study of Barnstable Harbor and Cape Cod Bay areas as to distribution 

of Foraminifera shows a principal facies in each, as well as 3 subfacies 

in the harbor and 2 subfacies in the bay. The largest population occurs 

in the harbor high marsh. Environmental conditions are correlated 

with facies and subfacies distribution. V. S.

3. Faunal evidence for mass movement of submarine sediments [abs.]: Oil 

and Gas Jour., v. 48, no. 51, p. 177, Apr. 27,1950.

Phoenix, David Alien.

Geology and ground water in the Meadow Valley Wash drainage area, Nevada, 

above the vicinity of Caliente: Nev. State Engineer's Office, Water Res. 

Bull. 7, p. 15-74, 90-117, illus. incl. geol. map, 1948. The Meadow 

Valley Wash area is located in Lincoln County, southeastern Nevada, 

on the Utah border. The physiography, stratigraphy, and ground-water 

geology are described, with the major emphasis on ground-water occurrence and development.

Pickett, E. E. SeeKeller, W. D.,1,3,4,6.

Pierce, William Dwight.

1. Fossil arthropods of British Columbia; 5, A new deposit of lignite: S. Calif. 

Acad. Sci. Bull., v. 49, pt. l, p. 3, Jan.-Apr. 1950. A note on a black, 

Shaly Interglacial lignite collected about 8 miles from the mouth of

sey^oxar River. The lignite contains plant remains.

2. FOSSil arthropods of British Columbia; 6, Fossil spider silk g Calif ACRCl 

Sci. Bull., V. 49, pt. 1, p. 3, Jan.-Apr, 19DO. Reports the occurrence in

the Seymour River lignite of silken egg cases, referred to SttltiCUS

seymouri, new species.

3. FOSSil arthropods of British Columbia; 7, A carabid from Lynn Creek lignite : S. Calif. Acad. Sd. Bull., V. 49, pt. 1, p. 4-7, illus., Jan.-Apr. 1950. 

Describes a new species of beetle, NotiophiluS vallCOUVeri, fl'Om Mergladal lignite at Lynn Creek, North Vancouver. The determination is

based on a pair of elytra. 4. Fossil arthropods of British Columbia; 8, The genus Donatia in British 

Columbia lignite: S. Calif. Acad. sci. BUH., v. 49, Pt. i, P. 7-9, jan.-

Apr. 1950. Describes three H6W Species Of the beetle Donacia from 

Interglacial lignite at Cordova Bay and Lynn Creek Comparative 

measurements Of eight species of the genus are given.

5. Fossil arthropods from onyx marble: S. Calif. Acad. Sci. BUIL, v. 49, Pt. 3, 

P. 101-104, nius., sept.-Dec. 1950. Describes a new genus and species

of arachnid, OnyChOtkelyphonus ^onneri, and a new genus and species

of insect, onychojavyx schmidti. Both specimens OCCUr in onyx of unKnown locality.

6. When does a thing become a fossil: S. Calif. Acad. Sci. Bun., v. 49, Pt. 3, 

p. 105-107, Sept-Dec. 1950. Brief discussion of the criteria for 

fossilization.
BIBLIOGRAPHY 211

Pierce, William Gamewell.

Source and movement of the Heart Mountain thrust blocks, Park County, 

Wyoming [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1493-1494, 

Dec. 1950.

Pill, R. J. See Kerr, P. F., 4.

Pilsbry, Henry Augustus.

(and Olsson, Axel Adolf). Review of Anticlimax, with new Tertiary species 

(Gastropoda, Vitrinellidae) : Bull. Am. Paleontology, v. 33, no. 135, 22 

p., illus., July 5,1950. A key to species of Anticlimaw is given, and new 

species from Miocene and Pliocene beds in Florida, Santo Domingo, 

Costa Rica, and the Canal Zone are described and figured. A new subgenus, SubclimaiD, is set up.

Pinger, Alien W.

Geology of the Franklin-Sterling area, Sussex County, New Jersey, in Dunham, 

K. C., ed., Symposium on ... lead and zinc: Internat. Geol. Gong., 

18th, Great Britain, Rpt. pt. 7, p. 77-87, illus., 1950; abs., Volume of titles 

and abstracts, p. 48, 1948. Describes the mineralization and structure 

of the zinc ore bodies in the pre-Cambrian Franklin limestone at Franklin (Franklin mine) and Ogdensburg (Sterling mine) in northern New 

Jersey. The ore minerals are franklinite, willemite, and zincite. The 

various theories of origin are discussed. A brief historical sketch of 

mining in the area is also given.

Pinson, William H., Jr.

A criticism of "Gondwana land bridges": Ga. Geol. Survey Bull. 56, p. 134-140, 

1950. Concludes that "though land bridges may have existed where 

they are not now even suspected, there seem to be no known cases of 

either faunal or floral distribution that do not lend themselves quite 

well to explanations along the lines of migration, natural transportation, 

and parallel evolution."

Pipiringos, George N. See Thompson, Raymond M.

Plummer, Frederick Byron, 1886-1947.

The Carboniferous rocks of the Llano region of central Texas: Texas Univ. 

Bur. Econ. Geology Pub. no. 4329, August 1, 1943, 170 p., illus. incl. geol. 

map, Feb. 1950. A comprehensive report on the stratigraphy of the 

Carboniferous formations in central Texas, including numerous measured sections, faunal lists and photographs, descriptions of fossil localities, and references. The colored geologic map is on a scale of 1 inch 

to 3 miles.

Plummer, Norman Vincen.

Ceramic materials, in Geology and ground-water resources of Barton and 

Stafford Counties, Kansas: Kans. Univ., State Geol. Survey Bull". 88, 

p. 35-37, 1950. Brief report on the occurrence and properties of clays 

in Barton and Stafford Counties, central Kansas.

Pohly, Richard A. '

Significant gravity pattern in reef anomalies [abs.]: Oil and Gas Jour., v. 48, 

no. 51, p. 119, Apr. 27,1950.

Poland, Joseph Fairfield.

Ground water in California: Min. Eng., v. 187, no. 2, p. 27*9-284, illus., Feb. 

1950; discussion, no. 11, p. 1168-1169, Nov. 1950; A. I. M. E..Trans., 

v. 187, 1950. A general picture of the ground-water problems, particularly overdraft and salt-water encroachment. The location of basins 

and geologic features are treated briefly, and a map showing the location 

of 33 basins is given.
212 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Poldervaart, Arie.

Correlation of physical properties and chemical composition in the plagioclase, 

olivine, and orthopyroxene series: Am. Mineralogist, v. 35, nos. 11-12, 

p. 1067-1079, illus., Nov.-Dec. 1950. "Physical properties . . . are 

plotted against chemical composition in a series of diagrams. The 

limitations of the various methods used to determine compositions of 

rock-forming minerals by optical means are discussed in detail, and 

lines of further work on the three mineral series are noted. A pleas is 

made for the use of molecular percentages and for standard nomenclature in these and other mineral groups."

Polk, Thomas R.

Large smoky quartz crystals from the Wichita Mountains, Oklahoma: Okla. 

Acad. Sci. Proc., v. 29 (1948), p. 41-42, illus., Mar. 1950. Reports the 

finding of two smoky quartz crystals in pre-Cambrian Lugert granite 

near Lugert dam in Kiowa County. V. S..

Poole, D. M.

(and Butcher, W. S.). Calibration of the Emery settling tube for sand 

analysis: Calif. Univ., Scripps Inst. Oceanography, Submarine Geology 

Rpt. no. 9, 14 p. (J), illus., Apr. 1950. Tests of the accuracy of the 

Emery settling tube, made on sands between 0.062 and 1 mm. mesh, 

showed a probable error in median diameter of 0.8 percent, close to 

the sieving probable error of 0.7 percent. Analysis procedure is given.

V. S.

Postel, Albert Williams.

1. (chairman, and others). New list of map symbols: U. S. Geol. Survey, 

Geol. Map Symbol Committee. 6 p. (f). [1950?]. Revised edition of 

1948 list.

2. Magnetite deposits of the Clinton County district, New York [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1494, Dec. 1950.

Potts, Merlin K.

Mount R'ainier's greatest ice cavern: Pacific Discovery, v. 3, no. 3, p. 5-7, illus., 

May-June 1950. Describes an ice cavern recently exposed on Kautz 

Glacier, Mt. Rainier, Washington, and discusses its formation.

Pough, Frederick Harvey.

Seventh anniversary of Paricutin: Sci. Monthly, v. 71, no. 5, p. 312-317, illus., 

Nov. 1950. Describes the changes in the activity of Paricutin Volcano, 

Mexico, during 1949-50 and the present characteristics of the area.

Poulter, Thomas Charles.

1. (and Alien, C. F., and Miller, Stephen W.). Seismic measurements on the 

Taku Glacier, in Geophysical studies in the Antarctic by T. c. Poulter, 

Appendix 3, p. 150-179, illus., Stanford, Calif., Stanford Research Institute, [1940?]. Takxi Glacier in Alaska is the only one of the many 

emanating from the Juneau Ice Field wnicn is advancing along its 

front. In connection with an investigation of this condition, seismic 

measurements were conducted by the Stanford Research Institute to 

determine the thickness of the ice. The record is included in this

volume to make the data more complete. .

2. The Poulter seismic method of geophysical exploration: Geophysics, V. ID,

no. 2, p. 1S1-207, illus., Apr. 19:30. Techniques of detonating a pattern of several charges above the ground are discussed with a view to 

generating a seismic pulse of controlled frequency and bettering the

Signal-tO-noise ratio. Three methods of freqtiency control are described,

and the resulting improvement in reflection records is illustrated. v.( S.

3. The Politer seismic method; oilfield techniques in the study Of polar iCe

CflPS 811(3 the Contribution of glacier tecnnlqvies in the discovery of oil

and minerals: Canadian Min. Met. Bull. 110. 457, p, 2D9-2GT, iiuia., May 

1950; Canadian Inst. Mining and Metallurgy Trans., v. 53, p. 174-182, 

1950. Problems of directivity of seismic energy, frequency CODtlOl, flDfl 

signal-to-noise ratio in exploration for oil and ores are discussed on 

the basis of studies of surface detonations of explosive charges in the 

high velocity, uniform medium of the ice on Taku glacier, Alaska. V. S.
BIBLIOGRAPHY 213

Powell, John Wesley, 1834-1902.

Physical features of the Colorado Valley: Sci. Monthly, v. 71, no. 3, p. 147-154, 

illus., Sept. 1950. A reprint of a portion of an article by Major Powell 

which appeared in Popular Science Monthly, 7, p. 385-399, 1875.

Powell, Russell D.

Washington locality: Mineralogist, v. 18, no. 10, p. 482, 484, Oct. 1950. Reports 

a locality at Forest, Washington, five miles south of Chehalis and east 

of Highway 99, for collecting agates, geodes, and petrified wood.

Powers, M. C.

A megascopic roundness scale [abs.]: N. C. Acad. S"ci. Proc. in Elisha Mitchell 

Sci! Soc. Jour., v. 66, no. 2, p. 116, Dec. 1950.

Prabhu, Keshavrao P.

Anion exchange in clay minerals [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1494-1495, Dec. 1950.

Pratt, Wallace Everette. See also Weaver, Paul, 1.

1. The earth's petroleum resources, in Fanning, L. M., ed., Our oil resources, 

2d ed., p. 137-153, 1950. A general discussion emphasizing the possibilities of petroleum occurrence in areas not yet explored such as the 

continental shelves, the Far East, and Arctic Sea areas.

2. Calculating petroleum reserves: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 8, 

p. 1756-1757, Aug. 1950. The view of A. I. Levorsen that two-thirds of 

the world's total amount of oil is in the continental shelves is defended 

in refutation of G. M. Lees' paper "Calculating petroleum reserves" 

(Inst. Petrol. Rev., v. 4, p. 33-37, 1950). V. S.

Prescott, B. Osborne.

A cross-section beard: World Oil, v. 130, no. 1, p. 69-70, illus., Jan. 1950. A 

simplified method for construction of geologic cross sections consists 

in plotting correlations by means of colored strings and ruaptacks on a 

white board and photographing on orthochrornatic film, thus eliminating 

the lengthy drafting process. V. S.

Press, Frank. See also Ewing, W. M., 1, 2, 3, 4.

(and Ewing, William Maurice, and Tolstoy, Ivan). The Airy phase of shallowfocus submarine earthquakes: Seismol. Soc. Am. Bull., v. 40, no. 2, p. 

111-148, illus., Apr. 195.0. The Airy wave phase, predicted theoretically 

on seismograms of shallow-focus submarine earthquakes, has been observed for shocks in the Dominican Republic and southwest of the 

Galapagos Islands. The evidence is discussed. As the ocean bottom 

affects both the periods and velocities of the Airy phase, its study should 

provide information on the nature of the ocean floor. V. S.

Price, Paul Holland. See also Reeves, Frank.

The work of the West Virginia Geological Survey: Compass, v. 28, no. 1, p. 

27-46, illus., Nov. 1950. Describes the history, development, functions, 

laboratory and field investigations, publications, current projects on 

coal, brines, limestones, petroleum and natural gas, and cooperative 

projects on ground water and stream gaging. A list of the State Geologists and personnel, since organization of the Survey in 1897, is included.

Price, William Armstrong.

Discussion, Origin of pimple mounds, by E. L. Krinitzsky: Am. Jour. Sci., 

v. 248, no. 5, p. 355-360, May 1950. Krinitzsky's polygenetic theory of 

pimple mound origin is criticized, in part in defense of the gopher 

hypothesis. A reply by Krinitzsky stresses the need of precise definitions. V. S.
214 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Price, William E., Jr.

1. Cenozoic gravels on the rim of Sycamore Canyon, Arizona: Geol. Soc. Am. 

Bull., v. 61, no. 5, p. 501-507, illus., May 1950. "The gravels are of two 

types: one of rounded pebbles derived locally from the Shinarump 

conglomerate and developed in Pleistocene-Recent time; the other, 

angular pebbles derived from rocks similar to those exposed tod'ay in 

the Black Hills-Bradshaw Mts. area to the southwest and developed in 

the Miocene or Pliocene. The angular gravels were laid down not upon 

a peneplain, . . . but upon a pediment that extended northeastward 

from the mountains and covered that area of the Colorado Plateau now 

occupied by Sycamore Canyon."

2. The Kaibab formation of Sycamore Canyon: Plateau, v. 23, no. 1, p. 11-16, 

illus., July 1950. Two measured sections of the Permian Kaibab limestone outcropping in Sycamore Canyon, 20 miles southwest of Flagstaff, 

northern Arizona, are described. The sections measure 396.5 and 534 

feet. Notes on the lateral changes evident from the measurement of 

several other sections are included.

Prichard, George E. See Richards, P. W.

Prince, Alan Theodore.

Phase equilibrium relationships in a portion of the system MgO-Al2O3-2CaO.SiOa 

[abs.] : Am. Ceramic Soc. Bull., v. 29, no. 3, p. 128, Mar. 1950.

Proctor, Paul Dean. See also Bateman, P. C.

Harrisburg (Silver Reef) mining district, Washington County, Utah [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1495, Dec. 1950.

Prouty, William Frederick, 1879-1949.

Origin of Carolina Bays: Pop. Astronomy, v. 58, no. 1, p. 17-21, Jan. 1950. 

The objections of Chapman Grant (Pop. Astronomy, v. 56, p. 511-527, 

Dec. 1948) to the modified meteoritic theory of origin for the Carolina 

Bays of North and South Carolina are answered.

Pruett, J. Hugh.

The lost Port Orford, Oregon, meteorite (ECN=+1245,428) : Pop. Astronomy, 

v. 58, no.. 8, p. 402-405, illus., Oct. 1950; Meteor. Soc. Contr., v. 4, no. 4, 

p. 286-290, illus., 1950. Historical account of the Port Orford meteorite, 

the original mass of which, on Bald Mtn. in southwestern Oregon, has 

never been relocated since its discovery in 1859 by John Evans.

Prunty, Merle C.

ClirriClllar StatUS Of the earth sciences in higher education In Georgia: Ga. 

Geol. Survey Bull. 56, p. 21-26, 1950.

Pugh, William Emerson.

(editor). Bibliography of organic reefs, bioherms, and biostromes. xxxi,

139 p. Tulsa, Okla. Seismograph Service Corp. 1950. Contains 1,060 

references in English fl'Om 1920 through the early part of 1950. The 

papers are arranged in 4 sections, of which the firSt, alphabCtlCally bj 

author, gives the complete citation. The other three are indexes of geographic location, geologic age, and general subjects, in the author 

index, concurrent geographic and geologic age indexing should prove

Very helpful. This scheme is also xased in the geographic and geologic

age indexes. 

Pullen, Milton William, Jr.

Summary of research results on the geologic aspects of radio wave transmission: 111. State Geol. Survey Circ. 159, 6 p. (t), lUllS., 1950. A DHei 

preliminary report On the current investigation of the correlation of 

geologic features with intensity anomalies in radio WaV6 transmission.
BIBLIOGRAPHY 215

Putnam, William Clement.

1. Moraine and shoreline relationships at Mono Lake, California: Geol. Soc. 

Am. Bull., v. 61, no. 2, p. 115-122, illus. incl. geol. maps, Feb. 1950. Discusses the moraines and shore lines formed at glacial Lake Russell 

during the Tahoe and Tioga glacial stages of the late Pleistocene. When 

the ice front was stationary the lake waves cut broad terraces, and 

when retreat was rapid, only narrow benches were carved. V. S.

2. Geomorphology as a tool for geologists [abs.] : G'eol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2, p. 1495, Dec. 1950.

Quarles, Miller Winthrop, Jr.

Fault interpretation from seismic data in southwest Texas: Geophysics, v. 15, 

no. 3, p. 462-476, illus., July 1950; abs., Oil and Gas Jour., v. 47, no. 46, 

p. 161, Mar. 17, 1949; Geophysics, v. 14, no. 3, p. 444-445, July 1949. 

Because many of the oil-bearing structures of the Gulf Coast and 

southwest Texas are found along a distinctive type of low-angle normal 

faulting, reflection seismograph shooting has been tried as a means 

of locating faulting. It has been found that normal data are obtained 

from the downthrow side and two types of distorted data from the 

upthrow side. The types are discussed and explained. Several distinctive fault patterns are classified.

Quigley, James E.

Primary uranium ore now being mined in Utah: Eng. Min. Jour., v. 151, no. 8, 

p. 90-93, illus., Aug. 1950. Briefly describes the geology of several 

individual deposits in the area of a new uranium discovery at Antelope 

Range, 4 miles northeast of Marysvale, Utah. The ore is autunite and 

pitchblende occurring in fissures near a monzonite-rhyolite contact.

Quinn, Alonzo Wallace.

1. (and Swann, David Henry). Bibliography of the geology of Rhode Island. 

2d ed., 26 p., index maps. Providence, R. I., R. I. Port and Indus. Dev. 

Comm., 1950. This second edition adds the references for 1944-1949 

inclusive and a few prior ones not given in the first edition. The references are arranged alphabetically by author, and the index is both 

topical and geographic.

2. (and Alien, William Burrows). The geology and ground-water resources 

of Woonsocket, Rhode Island: R. I. Port and Indus. Dev. Comm. Geol. 

Bull. 5, 40 p., illus. incl. geol. map, 1950. Discusses the stratigraphy 

and structure of the Paleozoic strata, with notes on the glacial deposits 

and geologic history. The section on ground water includes analyses 

and logs of test holes.

Quinn, Harold A.

Geology and gold deposits, Giauque Lake, Yellowknife: Canadian Min. Jour., 

v. 71, no. 10, p. 55-69, illus. incl. geol. map, Oct. 1950. The Giauque 

Lake area is north of Yellowknife, Northwest Territories. The preCambrian rocks, consisting chiefly of sediments and volcanics of the 

Yellowknife group, are described. Complex folding and faulting are 

present throughout the area. The mineralogy and paragenesis of the 

gold deposits are described. Data on two gold mines are given. The 

gold occurs in quartz veins, stockworks, and altered rocks.

Raasch, Gilbert Oscar.

Current evaluation of the Cambrian-Keweenawan boundary: 111. State Acad. 

Sci Traus., v. 43, p. 137-150, illus., 1950. The stratigraphic relations of 

the Bayfield group of redbecl shales and sandstones in Wisconsin, and 

equivalent sediments in Michigan and Minnesota, to Keweenawan and 

Cambrian strata are discussed. It is suggested that the Bayfield sediments are continental deposits of Middle, and possibly Early Cambrian 

age, laid down in structural basins'.

Rabbitt, John Charles.

"The Professor": Am. Mineralogist, v. 35, nos. 9-10, p. 619-621, port., Sept.- 

Oct. 1950. An informal essay on Esper S. Larsen, Jr., the introductory 

article of the Larsen Volume, Studies in petrology and mineralogy, 

made up of 33 papers by friends and former students.
216 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Rabbitt, Mary C.

(and Skitsky, Vsevolod Lawrovitch, and Vesselowsky, Sergius Theodore). 

Geophysical abstracts, no. 140, Jan.-Mar. 1950: U. S. Geol. Survey Bull. 

976-A, p. 1-69, 1950: (and Vesselowsky, S. T.), no. 141, Apr.-June 

1950, Bull. 976-B, p. 71-139, 1950; (and Vesselowsky, S. T.), no. 142, 

July-Sept. 1950, Bull. 976-C, p. 141-209, 1950; (and Vesselowsky, 

S. T.), no. 143, Oct.-Dec. 1950, Bull. 976-D, p. 211-266, 1951.

Rainwater, Edward Harriman. See Toulmin, L. D., Jr.

Raitt, Russell Watson.

Seismic studies of the Pacific Ocean floor off California [abs.]: Geophysics, 

v. 15, no. 1, p. 156, Jan. 1950.

Ramirez, Ricardo.

Descripcion de algunos moluscos del Mioceno del Valle del Cibao de la 

Republica Dominicana: Santo Domingo Univ. Pub., ser. 4, v. 70, no. 1, 

39 p., illus., 1949. Describes 33 species of gastropods and 10 species of 

pelecypods collected from the Miocene formations in the Oibao valley, 

northern part of the Dominican Republic.

Ramsdell, Lewis Stephen.

1. (and Wolfe. Caleb Wroe). The unit cell of malachite: Am. Mineralogist, 

v. 35, nos. 1-2, p. 119-121, illus., Jan.-Feb. 1950. The unit cell dimensions and the axial ratio, obtained by Brasseur with V. Goldschmidt's 

angular data, are revised on the basis of a corrected value for p. V. S.

2. (and Kohn, .Tack A.). The crystal structure of SiC, type 10-H [abs.]: 

Am. Mineralogist, v. 35, nos. 1-2, p. 125, Jan.-Feb. 1950.

Rand, William Whitehill.

Ventura region [Calif.], in Symposium on possible future oil provinces of the 

Pacific Coast region [abs.]: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 12, 

p. 2386, Dec. 1950.

Rankama, Kalervp.

(and Sahama, ThureGeorg). Geochemistry, xvi, 912 p., illus. Chicago, Univ. 

Of Chicago PreSS, 1950. A survey of the broad science of geochemistry 

the borderland field of geology and chemistry and the fll'St Comprehensive account in English incorporating the 'most recent contributions

in both American and European literature. Part l concern's the general 

aspects abundance and distribution of elements, chemistry of igneous,

sedimentary and nietamorphic rocks, the hydrosphere, and biosphere. 

Part 2 discusses each of the elements in detail. A bibliography of more 

than 600 references is included.

Rapaport, Irving. See Fetzer, W. G.

Ratliff, Fred. See Vickers, R. B., Jr,

Ran, Weldon Willis.

Tertiary Foraminifera from the Willapa River Valley of southwest Washington [abs.] ; Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, P. 1540, DeC. 1950.

Raup, Hugh Miller.

(and Deiiny, CharleS StOrrOW). PHOtO interpretation of tlie terrain along

the southern part of the Alaska Highway: U. S. Geol. Survey Bull. 963- 

D, p. 95-135, illus., 1950. "This paper is an attempt to apply the combined knowledge and techniques of botany and geology to the photo

interpretation of terrain in northern regions, m particular, the area 

along the southern part of the Alaska Highway in British Columbia

and southeastern Yukon."

Raymond, C. L.

Gem williamsite: Mineralogist, v. 18, no. 11, p. 556, 558, Nov. 1950. A brief 

note on the occurrence of williamsite, a form of serpentine, at the 

Geiger chrome pit dump in northern Maryland.
BIBLIOGRAPHY 217

Raymond, Percy Edward.

Olof 0. Nylander, 1864-1943: Nautilus, v. 64, no. 2, p. 63-64, Oct. 1950. Revised 

from Ain. Jour. Sci., v. 241, no. 11, p. 704-705, Nov. 1943.

Rea, Henry Carter.

"Strat trap" search need shown by Wyoming Basin: World Oil, v. 131, no. 6, 

p. 75-76, 78, 80, 88, 91, illus., Nov. 1950. Production from non-marine 

. sediments and stratigrapbic traps in the oil fields of the Powder River 

Basin, Wyoming, is reviewed as evidence that exploration for oil must 

be generally broadened beyond the present search for structures. The 

concept of structural control of oil accumulation is examined critically 

in the light of local structure maps and actual locations of production.

V. S. 

Read, Charles Brian. See also Beaumont, E. C.

1. Stratigraphy of the outcropping Permian rocks around the San Juan Basin, 

in Guidebook of the San Juan Basin, New Mexico and Colorado, p. 

62-66, illus., 1950. Discusses the outcrops of Permian strata on the 

margin of the San Juan Basin, and the paleogeography. A table of 

formations in several areas is given.

2. (and others). Coal resources of New Mexico, in Guidebook of the San Juan 

Basin, New Mexico and Colorado, p. 124-131, illus., 1950. The geologic 

and geographic distribution of coal in New Mexico is described, columnar 

sections of the coal-bearing areas are given, and estimates of reserves 

are calculated. The classification of coals by rank on which the reserve 

figures are based is outlined.

3. (and others); Coal resources of New Mexico: U. S. Geol. Survey Circ. 

89, 24 p. (|), illus., Nov. 1950. The New Mexico coal reserves, Cretaceous through Eocene, are estimated at 61,754.6 million short tons of 

subbituminous, bituminous, and anthracite coal, located in the San 

Juan River and Baton Mesa regions. Classes of reserves and method 

of estimation are discussed, and the 8 principal coal fields are described 

and illustrated by a columnar section, map, and statistical data. V. S.

Reed, Avery H., Jr.

Investigation of the Coosa tin deposit, Coosa County, Ala.: U. S. Bur. Mines 

Rpt. Inv. 4704, 33 p. (?), illus., July 1950. In the Coosa area, Alabama, 

cassiterite occurs in pegmatites intruded into pre-Cambrian schist. 

The deposits are distributed over an area 20 miles long and 3 miles 

wide. The pegmatite groups are described, and data are given on 

samples, metallurgical tests, and drill-hole logs. V. S.

Reed, Charles A.

A preliminary announcement of a new mammalian fossil locality in the 

Pliocene of Arizona: Plateau, v. 22, no. 4, p. 75-77, Apr. 1950. A brief 

note on random bones of camels, antelopes, horses, and other mammals 

found in Pliocene rocks on Milk Creek in the Prescott National Forest, 

Arizona. V. S.

Reed, Clyde F.

Morphology of fern spores and its relation to taxonomy [abs ]: Am. Jour. 

Botany, v. 37, no. 8, p. 673-674, Oct. 1950.

Reed, David E. See Garpuer, E. U. 

Reed, Eugene Clifton. See Thorp, J., 1.

Reed, Fredda Doris.

A new species of a Cordaite leaf [abs.] : Am. Jour. Botany, v. 37, no. 8, p. 673, 

Oct. 1950.

Reed, Glenn Cornelius.

Mines and mineral deposits (except fuels), Park County, Montana: U. S. Bur. 

Mines, Inf. Circ. 7546, 64 p. (J), illus. incl. geol. sketch maps, Feb. 1950. 

The gold, silver, copper, and lead mines and deposits of the Jardine, 

New World, Emigrant, and other mining districts of Park County are 

described. Geologic maps and a bibliography are given. V. S.
218 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Reed, John Calvin. See Cloos, E., 3; Moffit, F. H., 2. 

Reedy, Milton Frank, Jr. See Colle, J. O.

Reeves, Frank.

(and Price, Paul Holland). Early Devonian gas in northern West Virginia 

and pre-Devonian oil prospects: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 

11, p. 2095-2132, illus., Nov. 1950; abs. with title "Progress report on 

the search for early Devonian gas in northern West Virginia, with 

comments on pre-Devonian oil prospects," no. 8, p. 1771, Aug. 1950. 

Discusses the occurrence of gas in the Terra Alta and Canaan Valley 

fields. The stratigraphy and structure of the area, in the folded belt 

west of the Allegheny Front, are described. The possibilities of gas 

in the Devonian formations, and of oil in the pre-Devonian formations 

are discussed. A bibliography is given.

Reger, David Bright. See Wells, Dana.

Reiche, Parry.

1. A survey of weathering processes and products: N. Mex. Univ. Pub. Geology 

no. 3, 95 p., illus., 1950. This is a revised edition of the original paper 

published in 1945 and covers the same ground with only minor changes. 

It is a general discussion of the physical and chemical processes, soilforming processes, their results, and the effect of such factors as relief 

and time.

2. Geology of part of the Delta-Menclota Canal near Tracy, California: Calif. 

Dept. Nat. Res., Div. Mines, Spec. Rpt. 2, 12 p., illus. incl. geol. sketch 

map, Oct. 1950. Excavation of the Delta-Mendota Canal, which extends 

along the western margin of the Great Valley, California, has exposed 

Miocene and Plio-Pleistocene continental sediments. The stratigraphy 

and structure are described, and the engineering geology is discussed.

V. S.

3. Rio Vista, California, fault scarp [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1529-1530, Dec. 1950.

Reichel, Manfred.

1. Alv£olines de 1'oligo-miocene de Cuba [abs.]: Schweizerischen Naturforschenden Gesellschaft Verhandlungen, 1949, p. 148, 1949.

2. Remarques sur le genre Boreloides Cole et Bernnidez [abs.]: Schweizerischen TSl'aturforschenden Gesellschaft Verhandlungen, 1949, p. 148, 1949. 

Brief notes based on specimens from the lower Eocene of Cuba.

Reid, John Alexander.

Silver in Ontario: Canadian Min. Jour., V. 71, no. 11, p. 129-132, illus., Nov. 

1950. Silver mining has been carried on at three areas in Ontario 

Thunder Bay in the southwestern part, Favourable Lake in the northwestern part, and Temiskaming in the northeastern part. The Temiskaming area, mineralization, and production are described, and the 

features of the other two areas indicated briefly.

Reimann, Irving George.

Possible phylOgenetlC relationships Of some early eublastoids: Jour. Paleontology, v. 24, no. 4, p. 499-500, July 1950. Codaster pulcheMus, C. lorae, 

and C. pentalotois are referred to the genus Pleuroschisma Reimann 

1945. Notes on other variously classified Mastoids are included.

Reinhardt, Paul W. see steaa, E\ w., i.

Reno, Duane Hugh.

(and Taylor, Gai'Vin Lawrence). Magnetic susceptibility, in Analytical data 

on reference clay minerals: Am. Petrol. Inst. Project 49, Clay Mineral 

Standards, Prelim. Rpt. 7, p. 125-128, July 1950.
BIBLIOGRAPHY 219

Revelle, Roger.

The 1940 E. W. Scripps cruise to tbe Gulf of California, Part 5, Sedimentation 

and oceanography; survey of field observations: Geol. Soc. Am. Mem. 

43, 6 p., Aug. 10, 1950. Describes the sediments present in cores from 

several areas in the Gulf of California, chemical and bacteriological 

studies of the sediments, current measurements, and the rate of deposition of organic remains.

Rexford, Elliot P.

Some factors in the selection and testing of concrete aggregates for large 

structures: Min. Eng., v. 187, no. 3, p. 395-402, illus., Mar. 1950; discussion, no. 11, p. 1168, N6v. 1950; A. I. M. E. Trans., v. 187, 1950. 

Petrographic and engineering tests of rocks, gravels, and sands for 

their durability, chemical reactivity, and thermal compatibility are 

discussed with a view to selecting optimal materials for concrete structures. V. S.

Reynolds, Dewey A. See Dowd, J. J., 1, 2.

Rhoades, Roger Farnsworth. See also Dirmeyer, R. D., Jr. ; Savage, J. L. 

Influence of sedimentation on concrete aggregate, in Applied sedimentation, 

p. 437-463, illus., 1950 Typical occurrences of natural aggregates, 

such as river deposits, glacial deposits, talus deposits, wind-blown sand, 

marine deposits, and residual deposits are described. The properties of 

aggregates, as the result of the type of source material modified by 

sedimentation processes, are discussed. The influence on concrete of 

the properties is given in an appendix.

Rich, John Lyon.

1. Flow markings, groovings, and intra-stratal crumplings as criteria for recognition of slope deposits, with illustrations from Silurian rocks of 

Wales: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 4, p. 717-741, illus., Apr. 

1950. Of the three critical marine depositional environments continental shelf, continental slope, and sea bottom that of the slope can 

be recognized with good assurance by the association of: repeated 

alternate bedding of silt- and clay-size material; relatively thin, even, 

uniform bedding; sparsity of fossils; general absence of ripple marks; 

flow markings and flow rolls; and intra- and inter-stratal crumpling. 

Examples from Aberystwyth, Wales, are described and figured.

2. (and Wilson, William Jay). Paleogeographic and stratigraphic significance 

of subaqueous flow markings in the Lower Mississippian-strata of southcentral Ohio and adjacent parts of Kentucky [ab» ] : Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1496, Dec. 1950.

Richards, A. R. See Barr, K. W.

Richards, Arthur.

Geology along the Williams thrust near Kremmling, Colorado [abs.] : Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1496-1497, Dec. 1950.

Richards, Horace Gardiner. See also Straley, H. W., 3d, 1. 

1. Postglacial marine submergence of arctic North America with special reference to the Mackenzie Delta: Am. Philos. Soc. Proc., v. 94, no. 1, p. SI37, illus., Feb. 1950. Pleistocene features suggest that the weight of 

the Wisconsin ice sheet depressed the northeastern Atlantic and the 

eastern Arctic coast more considerably than the lower Mackenzie Valley. 

No postglacial marine beaches or marine deposits on top of the bed rock 

were found in the vicinity of the delta. V. S.

. 2. Geological studies in the Mackenzie Delta, Arctic Canada: Earth Sci. Digest, 

v. 4, no. 9, p. 3-6, illus., Apr. 1950. Brief investigation in 1948 showed 

no evidence of a Pleistocene marine submergence in the immediate 

vicinity of the delta. The field trip is described, and conclusions are 

given. V. S.
220 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Richards, Horace Gardiner Continued

3. Geology of the Coastal Plain of North Carolina: Am. Philos. Soc. Trans., 

v. 40, pt. 1, 83 p., illus., Aug. 1950. The stratigraphy of the Cretaceous, 

Tertiary, and Pleistocene beds is described and faunal lists for each 

formation are given. Sections on the geologic history of the area, structure, correlation of formations, mineral resources (chiefly non-metallies), and ground water are included together with an extensive bibliography.

4 Analysis of the methods of storing invertebrate fossils [abs.] : Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1497, Dec. 1950.

Richards, Paul William.

(and Prichard, George E.). The Livingston formation: Billings Geol. Soc., 

First Annual Field Conference, Sept. 15-17, 1950, p. 49-55, illus., incl. 

geol. sketch map. 1950. The Livingston formation, of Upper Cretceous 

and Tertiary age, crops out in the Crazy Mountain syncline of southcentral Montana. The literature on the formation is reviewed, and 

recent observations on field relations are noted. A map showing extent 

of the formation is given. A columnar section of Paleozoic strata near 

Livingston, Montana, is included.

Richards, T. C. See Bemrose, J.

Richardson, Carl B.

Regional discussion of Pennsylvanian reefs of Texas [abs.]: Tulsa Geol. Soc. 

Digest, v. 18, p. 74-75, illus., 1950; Am. Assoc. Petrol. Geol. Bull., v. 34, 

no. 3, p. 619, Mar. 1950; Oil and Gas Jour., v. 48, no. 51, p. 118, Apr. 27, 

1950.

Richardson, Eugene Stanley, Jr.

A middle Devonian octactinellid sponge from New York: Fieldiana; Geology, 

v. 10, no. 10, p. 79-88, illus., Oct. 5, 1950. Describes a new species, 

Astraeospongia clauda, collected from the Onondaga limestone near 

Snyder, western New York. Also included is a tabular comparison of 

spicule characteristics in various species of Astraeospongia.

Richmond, Gerald Martin.

Interstadial soils as possible stratigraphic horizons in Wisconsin chronology 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1497, Dec. 195O.

Richter, Charles Francis.

1. Velocities of P at short distances: Seismol. Soc. Ajn. Bull., v. 40, no. 4, p. 

281-289, illus., Oct. 1950. New temporary stations in southern California 

for recording P seismic waves to epicentral distances not over 160 km. 

have shown their velocity to be near 6.4 km./sec. The data are given.

V. S.

2. Seismic waves at short distances; progress report [abs.] : Geol. Soc. Am. 

Bull., v. 61, DO. 12, pt. 2, p. 1546-1547, Dec. 1950.

Ricker, Norman.

(and Lynn, Ralph D.). Composite reflections: Geophysics, v. 15, no. l, p.

30-49, illns. incl. geol. maps, Jan. 1950. A method IS diSCUSSed for SeiSDliC 

reflection prospecting with the use of the PS phase traveling from the

shot to the reflecting bed as a dilatation wave and from the reflecting

bed to the surface as a shear wave. Advantages and limitations are 

indicated, and experimental application in Louisiana is described. V. S.

Ricker, R. W.

(and Hummel, Floyd A.), Reactions in the system SiO2-TiOa and suggested 

revision of the phase diagram [abs.]: Am. Ceramic SOC. Bull., V. 29,

no. 3, p. 128, Mar. 1O5O.
BIBLIOGRAPHY 221

Riddell, John E.

A technique for the determination of traces of epigenetic base metals in rocks 

and its application to samples of unaltered and altered rocks surrounding ore bodies of the Amulet mine, Noranda, P. Q.: Quebec Dept. Mines, 

Mineral Deposits Br. and Laboratories Br., Prelim. Rpt. 239, 23 p. ($), 

illus., 1950. Describes a modification of the dithizone method. The field 

tests indicate that as an ore body is approached the determinate heavy 

metal content (probably representing epigenetic metal) increases from 

. less than 1 pprn to more than 20 ppm.

Ridland, George Carman.

Radioastivity at the Caribou silver mine, Boulder County, Colorado: Min. Eng., 

v. 187, no. 1, p. 98-101, illus., Jan. 1950; A. I. M. E. Trans., v. 187, 1950. 

A survey with a Geiger counter at the mining properties of Caribou 

Hill, one of the mineralized areas of the Front Range, revealed a radioactive ore body on the 1040 level. There was no surface indication of 

the ore, nor any indication of an above-ngrmal gamma-ray count by 

the quartz-monzonite host rock.

Riecken, Frank Frederick.

Loess of Iowa with some interrelationship of soils, geology, and geography 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1572, Dec. 1950.

Ries, Heinrich, 1871-1951.

Foundry sands; in Applied sedimentation, p. 475-482, 1950. Among the points 

covered in the discussion are the shape and fineness of sand grains in 

foundry sands, properties such as cohesiveness, permeability, compressive strength, and flowabilityf properties at high temperatures, and 

distribution of foundry sands in the United States.

Rimsaite, Yadviga. See Hawley, J. E., 3.

Rinehart, John S.

Some observations on high-speed impact: Pop. Astronomy, v. 58, no. 9, p. 458- 

464, illus., Nov. 1950; Meteor. Soc. Contr., v. 4, no. 4, p. 299-305, illus., 

1950» Summarizes experimental data on phenomena associated with 

the impact of high-velocity particles; in particular, the mechanics of 

crater formation. The probable mass of the meteorite that formed the 

Barringer meteorite crater in Arizona is calculated to be about 12,500 

tons. Several conclusions on mass, impact, and crater formation are 

drawn.

Risi, J.

(and others). A chemical study of the peats of Quebec: Quebec Dept. Mines, 

Laboratories Br., Prelim. Rpt. 234, 36 p. (t), illus., 1950. The method 

of analysis and the results obtained on 92 samples of peat from the 

Clair peat bog near Ldvis, Quebec, are described. The chemical utilization of peat is discussed.

Rittenhouse, Gordon.

Reel beds and the search for oil [abs.]: Oil and Gas Jour., v. 48, no. 51, p. 123, 

Apr. 27, 1950.

Ritzius, D. E.

South Belridge oil field: Calif. Oil Fields, v. 36, no. 1, p. 18-24, illus., Jan.-June 

1950. The South Belridge field is located in the southwestern part of 

the San Joaquin Valley, in Kern County, California. The development 

history, stratigraphy, structure, producing zones, and production statistics are briefly described.

Roberts, Albert E. See Snavely, P. D., Jr.

Roberts, Carroll Norton.

The metamict state: Compass, v. 27, no. 4, p. 223-226, May 1950. A brief 

resum6 of the cause and characteristics of the metamict state, an 

amorphous form assumed by certain minerals. The metamict state 

is particularly characteristic of the rare-earth minerals. ' 

980682° 52 15
222 ANNOTATED BIBLIOGRAPHY OP NORTH AMERICAN GEOLOGY, 1950

Roberts, Elliott B.

(and Ulrich, Franklin Peter). Seismologieal activities of the U. S. Coast 

and Geodetic Survey in 1948: Seismol. Soc. Am. Bull., v. 40, no. 3, p. 

195-216, illus., July 1950. Reviews the seismological activities of the 

U.i S. Coast and Geodetic Survey in 1948 as regards the teleseisinic and 

questionnaire work, strong motion, vibration, tiltmeter recording, instrumentation, research, cooperative projects, and related activities. 

Earthquake tabulations, isoseismal maps, and sample records are given.

V. S. 

Roberts, George Daniel. See Burwell, E. B., Jr., 1.

Roberts, Henry. See Howell, B. F., 2.

Roberts, Joseph Kent.

1. (and Gildersleeve, Benjamin, and Freeman, Louise Barton). Geology . . . 

of the Jackson Purchase region, Kentucky: Ky. Geol. Survey Bull. ser. 

9, no. 4, 114 p., illus., incl. geol. maps, 1950. A reprinting, with revision, 

of Bulletin 8 of the Kentucky Dept. Mines and Minerals, 1945. 

Paleozoic structure and stratigraphy are described by L. B. Freeman, 

Cretaceous, Tertiary, and Quaternary stratigraphy by J. K. Roberts, 

and the mineral resources by B. Gildersleeve.

2. History of the development of geology, in The James River Basin, past, 

present and future, p. 442-464, illus., Va. Acad. Sci., 1950. Gives general 

information on stratigraphy, paleontology, mineral resources, ground 

water, springs, earthquakes, and geophysical investigations in the 

James River Basin area of Virginia.

3. The Triassic and Coastal Plain, in The James River Basin, past, present 

and future, p. 465-481, Va. Acad. Sci., 1950. Discusses the Triassic 

strata of the Piedmont province, and the Cretaceous, Tertiary, and 

Quaternary strata of the Coastal Plain in Virginia. A selected bibliography is included.

Robertson, Almon Fulton.

Mines and mineral deposits (except fuels), Fergus County, Mont.: U. S. Bur. 

Mines Inf. Circ. 7544, 76 p. (t), illus. incl. geol. maps, Jan. 1950. 

Describes the mineral deposits and mines, chiefly worked for gold and 

silver values, of the Warm Springs district, the North Moccasin district, 

and the Cone Butte district in Fergus County, central Montana. Data 

for each formerly operating deposit are summarized and tabulated. 

Notes on the non-metallic mineral deposits, particularly gypsum and 

clay, are included.

Robertson, D. S.

Preliminary map, Elbow Lake, Manitoba: Canada Geol. Survey Paper 50-1, 

1950. A geologic map with marginal notes. Pre-Cambrian greenstones, granites, and diorites characterize the area. V. S.

Robertson, Eugene C.

Strength of limestone [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1498,

Dec. 1950.

Robertson, Florence. See also Volk, J. A., 1.

On the Selection Of a seismograph. 41 p., illus., St. Louis, Mo., Sprengnether

instrument Co., 1948. The principles, elements, and types of seismograph construction are described to aid cboice of instruments suitable 

for Specific problems. Consideration is given to requirements of a steady reference-point, registration of motions in different directions and

of vibrations of different frequencies, and Satisfactory damping, T6- cording, magnifying, ana timing of.movement. v. s.

Robertson, George McA.fee.

1. Some contributions of fossil Study to fle problem Of vertebrate origin: iowa 

Acad. Sci. Proc., v. 56, p. 379-384, 1949. A discussion of the theories 

that have been advanced to explain vertebrate origin and possible relationships to invertebrates. The role of the ostracoderms in the problem is considered and the possibility of the existence of fresh water 

animals between the ostracoderms and an invertebrate phylum is suggested.
BIBLIOGRAPHY 223

Robertson, George McAfee Continued

2. Paleoecology of the Agnatha: Natl. Research Council, Report of the Committee on a treatise on marine ecology and paleoecology, 1948-SL949, no. 

9, p. 111-116, Dec. 1949. An annotated bibliography of 35 references 

concerning ostracoderm paleoecology.

3. Species criteria in Osteostraci, with special reference to the genus Tremataspis: Am. Jour. Sci., v. 248, no. 5, p. 335-346, May 1950. "An attempt 

is made to compare species criteria as used in the genus Tremataspis 

with those used in establishing species in the other genera of the order 

Osteostraci. Exception is taken to Denison's use of histologic characters of the shield as an adequate basis for placing specimens which 

differ in other respects in the same species."

Robie, Edward H.

Josiah E. Spurr [1871-1950] : Min. Eng., v. 187, no 5, p. 632-633, May 1950.

Robinson, Gershon Duvall. See Finch, R. H., 5. 

Robinson Gilbert C. See Buie, B. F. 

Robinson, Raymond F. See Thurlow, E. E.

Robinson, Stephen Clive.

Mineralogy of the Goldfields district, Saskatchewan (interim account) : 

Canada Geol. Survey Paper 50-16, 38 p. ($), illus., 1950. The minerals 

of hydrothermal origin, particularly uranium-bearing, in the Goldfields 

district, Saskatchewan, are described. Their distribution, associations, 

paragenesis, and origin are discussed. A map of occurrences is given.

V. S.

Robinson, Thomas William, Jr. See also Eakin, T. E., 2; Maxey, G. B. 

Ground water in Nevada: Colo. Sch. Mines Quart., v. 45, no. 4B, p. 33-38, Oct. 

1950. General comments on the distribution and quality of ground 

water in Nevada.

Rochow, T. G. See Davis, D. W.

Rodan, William Bird.

Good field, Borden County, Texas: Abilene Geol. Soc., Geol. Contr., p. 15-19, 

illus., 1950. The history of discovery, stratigraphy, structure, and 

production are briefly described.

Rodda, J. L. See Overholt, J. L.

Rodgers, John.

1. Mechanics of Appalachian folding as illustrated by Sequatchie anticline, 

Tennessee and Alabama: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 4, p. 

672-681, illus., Apr. 1950. Study of the Sequatchie anticline in the 

Peunsylvanian strata of the Cumberland Plateau shows the existence 

of tear faulting at both ends. Formation mechanically similar to the 

Pine Mtn. thrust fault to the northeast is suggested, with the anticline 

forming where the thrusting cut from one weak layer to another On 

this basis, two areas of younger rocks surrounded by older ones are 

interpreted as windows which have been eroded through the thrust 

fault that disappears northwestward and on which the displacement 

must have been approximately 1% miles.

2. The nomenclature and classification of sedimentary rocks: Am. Jour. Sci., 

v. 248, no. 5, p. 297-311, May 1950. Examination of existing classifications and their purposes affirms the necessity for both descriptive and 

genetic systems. It is suggested that an analytical descriptive classifi- 

 cation, for use by laboratory workers, should be expressed entirely by 

measured parameters instead of rock names. V. S.
224 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Rodriguez A., Raul.

Notas breves sobre gas natural: Asoc. Mex. Ge61. Petrol. Bol., v. 1, no. 2, p. 

157-162, illus., Dec. 1949. The composite nature and modes of occurrence of natural gas are indicated, and three kinds retrograde, humid, 

and dry are distinguished on the basis of effects of subsurface pressure, temperature, and moisture, and are discussed briefly as to methods 

of exploitation. V. S.

Roe, Walter B.

Geologic features of North Dakota lignite: Bcon. Geology, v. 45, no. 5, p. 434- 

440, Aug. 1950. Lignite occurs in the Fort Union and Lance formations 

(early Tertiary) in western North Dakota. The lignite horizons are 

continuous over large areas, but the individual seams are lenticular and 

vary from a few inches to more than 40 feet in thickness. The composition and characteristics are described.

Roedder, Edwin W.

Preliminary report on the system leucite-SiOa-Fe.O [abs.]: Am. Mineralogist, 

v. 35, nos. 3-4, p. 288, Mar.-Apr. 1950.

Rohrer, Robert H.

A portable high-speed Geiger counter for geologic surveys in Georgia: Ga. Geol. 

Survey Bull. 56, p. 117-129, illus., 1950. Description, diagram, and 

pictures of the apparatus.

Rold, John W.

1. Geology of the Wellsville area, north flank of the Sangre de Cristo Mountains, Colorado: Compass, v. 27, no. 3, p. 159-178, illus. incl. geol. map, 

Mar. 1950. A study of the pre-Pennsylvanian stratigraphy and structure in the Wellsville area, Colorado. The lithology of a measured 

section of the Ordovician, Devonian, and Mississippian rocks is described in detail. V. S.

2. Structure and pre-Pennsylvanian stratigraphy of the Wellsville area, Colorado [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1558, Dec. 1950.

Rolshausen, F. W.

(and Lowinan, Shepard Wetmore). Geological guide books and road logs in 

the United States: Am. Geol. Inst. Rpt. no. 4, 77 p. ($), June 1950. 

Gives titles and brief publication data for 210 guidebooks issued by

various state geological svn-veys and professional societies.

RolstonJackW, See Trask, P. D., 4.

Romberg, Frederick. See Barries, V. E., 1.

Romer, Alfred Sherwood.

1. The Upper Paleozoic Ab9 formation and its vertebrate fauna, in Guidebook

for the fourth field conference of the Society of Vertebrate Paleontology

in northwestern New Mexico, p. 48-55, 1950. Describes tiie historical

background of vertebrate collecting from the Permian Abo formation in

New Mexico, and compares the fauna with that from the Wichita group 

of Texas.

2. The nature and relationships of the Paleozoic microsanrs; Am. Jour. Sci.,

v. 248, no. 9, p. 628-654, illus., Sept. 1950. Establishes a series of characters for defining Paleozoic microsaurs. A number of Carboniferous 

and early Permian genera are included, but among those excluded is 

the "type" microsaur Hylonomns. "It seems best to retain the familiar 

ordinal term Microsauria for the group as here defined. The microsaurs appear to have no relationship to reptiles, but are possibly ancestral to the urodele and apodous amphibians." V. S.

Romney, Carl F. See also Tocher, D., 1.

1. (and Herrick, Charles E.). Earthquakes in northern California and the 

registration of earthquakes at Berkeley Mount Hamilton Palo Alto 

San Francisco Ferndale Fresno, from January 1, 1942 to March 31, 

1942: Calif. Univ. Seismog. Sta. Bull., v. 12, no. 1, p. 1-48 (t), 1950; 

from April 1, 1942 to June 30, 1942, no. 2, p. 49-94 (J), 1950.
BIBLIOGRAPHY 225

Romney, Carl F. Continued

2. (and Meeker, John B.)- Earthquakes in northern California and Nevada 

and the registration of earthquakes at Berkeley Mount Hamilton 

Palo Alto San Francisco Ferndale Fresno Mineral Arcata Reno, 

from October 1, 1948 to December 31, 1948: Calif. Univ. Seismog. Sta. 

Bull., v. 18, no. 4, p. 279-355 ($), 1949.

3. (and Meeker, John B.). Earthquakes and the registration of earthquakes, 

Berkeley Mount Hamilton Palo Alto San Francisco Ferndale 

Fresno Mineral Arcata Reno, from January 1, 1949 to March 31, 

1949: Calif. Univ. Seismog. Sta. Bull., v. 19, no. 1, p. 1-78 (t), 1950; 

from April 1, 1949 to July 31, 1949, no. 2, p. 79-152 (I), 1950.

Rooney, William Joseph. See Tuve, M. A., 1.

Rosalsky, Maurice B.

The characteristics of beach drifting: Shore and Beach, v. 18, no. 1, p. 6-8, 

illus., Apr. 1950; discussion by Martin A. Mason, p. 8-10. On Fire 

Island, off; the south coast of Long Island, New York, beach drifting by 

the action of waves is controlled more by storm winds from the east 

than by prevailing winds from the southwest. Observations on the 

relative speed of the coarse and fine material by drifting and on the 

paths of the coarse particles are described and discussed.

Rose, Bruce.

Everend Lester Bruce (1884-1949) : Royal Soc. Canada Proc., 3d ser., v. 44, 

p. 73-76, port., 1950.

Rose, Edward Roderick.

Preliminary map, Torbay, Newfoundland: Canada Geol. Survey Paper 50-24, 

1950. Geologic map, with descriptive notes, of an area of pre-Cambrian 

and Ordovician rocks mantled with glacial drift in southeastern Newfoundland.

Rose, Kenneth E.

' Silica sand from south-central Kansas for foundry use: Kans. Univ., State 

Geol. Survey Bull. 86, pt. 4, p. 85-104, illus., Oct. 30, 1950. Screen 

analyses and foundry tests of the Cheyenne sandstone indicate that it 

can be a satisfactory source of silica sand for making synthetic molding 

sand or cores. The data are given, and economic aspects are discussed.

V. S.

Rose, Walter D.

.(and Wyllie, M. R. J.). Specific surface areas and porosities from photomicrographs: Am. Assoc. Petrol. Geol Bull., v. 34, no. 8, p. 1748-1749, 

Aug. 1950. The statistical method of H. W. Chalkley, et al. (Science, 

v. 110, p. 295-97, 1949) for estimating volume-surface ratios in biological 

specimens is modified for the determination of specific surface areas 

and porosities in porous geologic media from photomicrographs. The 

principles are also found applicable to the examination of surface areas 

and percentage compositions of the components in geologic thin sections.

V. S.

Rosenfeld, John L.

Determination of all principal indices of refraction on difficultly oriented 

minerals by direct measurement: Am. Mineralogist, v. 35, nos. 9-10, p. 

902-905, Sept.-Oct. 1950. "A device and method of general applicability 

is described whereby one can determine all principal indices of refraction on a single grain of non-opaque substance by direct measurement. 

The materials used are easily obtained and cost less than one dollar."

Rosenfeld, Melvin Arthur.

Problem of porosity [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1498, 

Dec. 1950.
226 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Rosenholtz, Joseph Leon.

1. (and Smith, Dudley Thompson). Comments on the characteristics of heattreated Yule marble: Am. Jour. Sci., v. 248, no. 5, p. 352-354, May 1950. 

Fabric analysis and determination of linear thermal expansion on 

marble from Yule, Colorado, show such approaches to be useful in 

studies of the deformational history of rocks. (See Turner, F. J., 1.)

2. (and Smith, Dudley Thompson). Crestmore Sky Blue marble, its thermal 

expansion and color: Am. Mineralogist, v. 35, nos. 11-12, p. 1049-1054, 

illus, Nov.-Dec. 1950. The coefficients of linear thermal expansion 

were determined from 20-700 C for specimens cut with various orientations, from the Sky Blue marble at Orestrnore, California. The results 

are interpreted with a view to correlation with deformational stress and 

geologic structure. The blue color is attributed to residual strain, and 

is relieved by heating.

Roseveare, George H. See Wilson, E. D., 1.

Ross, Clarence Samuel.

The dark-field stereoscopic microscope for mineralogic studies: Am. Mineralor 

gist, v. 35, nos. 9-10, p. 906-910, illus., Sept.-Oct. 1950. "Dark-field 

illumination has not been widely used in the study of minerals, but the 

stereoscopic microscope can readily be adapted to make use of the darkfield effect. The dark-field stops that may be used with the stereoscopic 

microscope are described, together with some of the applications for 

which the method has proved most useful."

Ross, Clyde Polhemus.

Fluorspar prospects of Montana: U. S. Geol. Survey Bull. 955-E, p. 173-224, 

illus. incl geol. maps, 1950. Several areas in Montana have been 

explored for fluorspar, among which are the Sweetgrass Hills, the Spar 

property in Mineral County, the Boeing prospect near Austin, and the 

Silver Bow claims near Silver Bow. The fluorite occurs in metalliferous deposits, many of which are replacement deposits in limestone. The 

geology, mineralogy, and economic aspects of the occurrences are described, and geologic sketch maps are given. V. S.

Ross, Reuben J., Jr.

Ontogenetic development of selected Lower Ordovician trilobites [abs.]; Geol.

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1496-1499, Dec. 1950.

Ross, Stewart Hamilton.

Preliminary report on the geology of the Sagard-Callieres region, Charlevoix, 

Chicoutimi, and Saguenay Counties: Quebec Dent. Mines, Mineral Deposits Br., Prelim. Rpt. 244,8 p. (I), geol. map, 1950. Describes briefly

tbe pre-Cambrian rocks of the area, with notes on the structure and on

the occurrence of mica.

Rothrock, Edgar Paul.

(and Hubbard, George David). New work on tea of Late Dakota, south

Dakota [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1499, Dec. 1950. 

Rothrock, Howard Eugene.

i. (and Wagner, Holly Clyde, and Haley, Boyd R). Geology of anthracite in

the west-central part of the Mount Carmel quadrangle, Pennsylvania:

U. S. Geol. Survey Coal Inv. Map C3 (3 sheets). Scale 1:6,000 or 1

inch to 5OO feet. 195O. S*heet 1 shows coal outcrops and features 

associated With COal mining; Sheet 2 is a structure rnap of the Buck;

Mountain coal bed; Sheet 3 consists of cross sections, columnar section,

correlation chart showing variation in intervals between coal beds, and

a text describing the Stratigraphy, structure and individual beds. 

2. A summary and critique of the estimates of Pennsylvania anthracite reserves, in Symposium on mineral resources in Pennsylvania : Pa. Acad.

Sci. Proc., v. 24, p. 192-197,1950. The factors and methods used in 

making estimates of anthracite are discussed, and previously made 

estimates are summarized. Ashley (1945) estimated the unmined reserves at 15.8 billion tons, or a mining life of approximately 175 years.

Rouse, John Thomas. See Kaufmann, G. F.
. BIBLIOGRAPHY 227

Rowe, F. G. See Davis, D. W.

Rowley, Elmer B.

Minerals in our world: Rocks and Minerals, v. 25, nos. 5-6, p. 227-245, illus., 

May-June 1950. A popular account of the origin of minerals, touching 

on such points as mineral definition, types of mineral deposition, precipitation, metasomatism, rnetamorphism, and evaporation.

Roy, Chalmer John. See Mather, K. F., 1.

Roy, Delia M. See also Roy, R.

(and Roy, Rustum, and Osborn, Elburt Franklin). Phase relations and 

structural phenomena in the fluoride-model systems LiF-BeF2 and 

NaF-BeF2 : Am. Ceramic Soc. Jour., v. 33, no. 3, p. 85-90, illus., Mar. 1950.

Roy, Rustum. See also Counts, W. E.; Roy, D. M.

(and Roy, Delia M., and Osborn, Elburt Franklin). Compositional and 

. stability relationships among the lithium aluminosilicates; eucryptite, 

spodumene, and petalite: Am. Ceramic Soc. Jour., v. 33, no. 5, p. 152-159, 

illus., May 1,1950. The results of a phase-equilibrium study of mixtures 

lying on the join eucryptite-silica in the system LizO-AlzOa-SiOz are 

presented. Hydrothermal techniques were used to obtain equilibrium 

relations among the crystalline phases at low temperature. The low 

forms of eucryptite, spodumene and petalite were synthesized. The 

upper limits of stability of the naturally occurring forms were found 

to be 972, 500, and 680 C respectively,

Roy, Sharat Kumar.

1. (and Wyant, Robert Kriss). The Smithonia meteorite: Field Mus. Nat. 

History, Geol. ser., v. 7, no. 9, p. 129-134, illus., Dec. 22, 1950. Describes 

and gives a chemical analysis of the Smithonia meteorite from Oglethorpe County, Georgia.

2. (and Wyant, Robert Kriss). The La Porte meteorite: Field Mus. Nat. 

History, Geol. ser., v. 7, no. 10, p. 135-144, illus., Dec. 22,1950. Describes 

the structure and constituents, and gives chemical analyses of the La 

Porte meteorite from La Porte County, Indiana.

Rubey, William Walden.

1. Geologic evidence regarding the source of the earth's hydrosphere and 

atmosphere [abs.] : Science, v. 112, no. 2912, p. 454, Oct. 20, 1950.

2. Geologic history of sea-water [abs.]: Geol. Soc. Am. Bull., v,. 61, no. 12, pt. 

2, p. 1499-1500, Dec. 1950.

Ruhe, Robert V.

1. A Bignell (?) loess section in western Iowa: Iowa Acad. Sci. Proc., v. 56, 

p. 229-231, illus., 1949. Describes a section exposed in a road cut in 

Harrison County, Iowa, which by comparison with the Bignell type section in Nebraska and other sections, is identified as Bignell loess.

2. Graphic analysis of drift topographies: Am. Jour. Sci., v. 248, no. 6, p. 

435-443, illus., June 1950. Topography is used as a criterion for differentiation of glacial drifts of different ages. A quantitative method 

of analysis in graphic form is proposed. Relationships of the Wisconsin drifts of northwestern Iowa are demonstrated by application of 

the method.

3. Reclassification and correlation of the glacial drifts of northwestern Iowa 

and adjacent areas [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1500-1501, Dec. 1950.

Rummerfield, Benjamin F.

Algunos problemas de la exploraci6n sismo!6gica en Mexico: Asoc. Mex. Ge61. 

Petrol. Bol., v. 2, no. 5, p. 305-311, May 1950; in English and Spanish, 

Petrfileo Interamericano, v. 8, no. 9, p. 28-29, 60, 62, illus., Sept. 1950; 

in English, Mines Mag., v. 40, no. 10, p 120-122, 129, illus., Oct. 1950. 

Outlines several problems of seismological exploration for petroleum in 

Mexico, touching on the effect of intrusive and extrusive rocks, salt 

domes, reefs, faults, and fractures.

Runke, S. M. See Thoenen, J. R. '
228 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Runnels, Russell T. See Nixon, E. K., 2.

Russell, Charles D. '

(and Dickey, Parke Atherton). Porosity, permeability, and capillary properties of petroleum reservoirs, in Applied sedimentation, p. 579-615, 

illus., 1950. Porosity and permeability are discussed as measurable 

properties controlled by the petrographic texture of the rock. The sedimentary factors which affect these properties are outlined. Points 

considered are bedding, grain size, packing, clay content, and cementation.

Russell, James E.

Practical aspects of core analysis: Abilene Geol. Soc., Geol. Coutr., p. 11-14, 

1950. The use of core analyses in determining permeability and 

porosity is discussed.

Russell, Loris Shano.

1. A new locality for fossil fishes and eurypterids in the Middle Devonian of 

Gaspe", Quebec: Royal Ontario Mus. Paleontology Contr. 12, 6 p., illus., 

July 1947. Describes a new fossil locality east of D'Aiguillon post office, 

Gaspe" County, Quebec. The stratum is called the D'Aiguillon bone bed, 

and is calculated to lie about 2,300 feet above the base of the Gaspe 

sandstone. A measured section is given. Preliminary work indicates 

the presence of a species of Pterygotus, Cephalaspis, and of a small 

pelecypod, possibly Modiomorpha.

2. Correlation of the Cretaceous-Tertiary transition in Saskatchewan and 

Alberta: Geol. Soc. Am. Bull., v. 61, no. 1, p. 27-42, illus., Jan. 1950; 

reprinted in Geol. Assoc. Canada Proc., v. 2, Apr. 1950. The author's 

earlier conclusions are reviewed in the light of various recent studies, 

and revised correlations are given for several localities. The most 

important change is the extension of the time range of the Edmonton 

formation to include the portion equivalent to part of the Lance stage.

V. S.

3. The Tertiary gravels of Saskatchewan: Royal Soc. Canada Trans., 3d ser., 

v. 44, sec. 4, p. 51-59, June 1950; abs., Proc., 3d ser , v. 44, p. 226, 1950. 

Results of recent work on the three Tertiary mammalian faunas of 

Saskatchewan are described. The faunas are those of the Swift Current Creek beds (Eocene), Cypress Hills formation (Oligocene), and 

the Wood Mountain gravel (Miocene). Notes on the Flaxville gravels 

Of northeastern Montana are included.

Russell, Richard Dana.

1. Applications of sedimentation to naval problems, in Applied sedimentation, 

p. 656-665, 1950. Information on sediments is useful in problems involving underwater scmnd, installation of underwater equipment, mining Operations, amphibious operations, and shore installations. Examples of the application of such information are given.

2. Research in submarine geology ePo,^ovod by the IT S Navy: Internat. Geol. 

Cong., 18th, Great Britain, Rpt. pt. 8, p. 63-68, 1900; aua., voi« « o* 

titles and abstracts, p. 56, 1948. The U. S. Navy participates in submarine geological research that includes compilation of data on bottom 

sediments in shallow water, detailed bottom surveys of particular areas, 

and collection of samples and cores from the deep sea. The purpose 

and scope of these activities are described. 

Russell, Richard Joel.

The Pliocene-Pleistocene boundary in Louisiana: Internat. Geoi cong., isth, 

Great Britain, Rpt. pt. 9, p. 94-96,1950; abs., Volume of titles ana abstracts, p. 63, 1948. 'The recognition of subdivisions of the Tertiary in 

Louisiana is discussed, and it is shown that no basis for distinguishing Miocene and i>iiocene extsts. -rte Louisiana Geological Survey does

not recognize any Pliocene m the state. me piioce«,B.I.leI/toccne

boundary is placed at the base of deposits formed during the first 

major ice advance.

Ruwwe, Ralph Walter.

Resume' of development of Forest City Basin of northeast Kansas [abs.] : Am. 

Assoc. Petrol Geol. Bull., v. 34, no. 3, p. 624, Mar. 1950.
BIBLIOGRAPHY 229

Sagui, Cornelio L. See Bain, G. W., 1. 

Sahama, Thure Georg. See Rankarna, K.

Sahinen, Uuno M.

Geology and ore deposits of the Highland Mountains, southwestern Montana: 

Mont. Bur. Mines and Geology Mern. 32, 63 p. ($), illus. incl. geol. map, 

1950. The Highland Mountains, 15 miles south of Butte, Montana, are 

formed by highly folded sedimentary rocks of pre-Cambrian through 

Cretaceous age, intruded by the quartz-monzonite Boulder batholith. 

Mineralization accompanying the intrusions resulted in gold, silver, 

copper, lead, zinc, and molybdenite deposits. Phosphate rock occurs 

in the Phosphoria formation of Permian age. The formations, deposits, 

and mines are described and mapped. V. S.

Said, Rushdi.

Geology in tenth century Arabic literature: Am. Jour. Sci., v. 248, no. 1, p. 

63-66, Jan. 1950. The Arabic classic "Discourses of the Brothers of 

Purity" is found to contain a description of a metamorphic cycle and 

mentions of peneplanation, pond evolution, epicontinental seas, weathering, erosion, and particle transport by streams and wind. V. S.

Sakamoto, Takao.

The origin of the pre-Cambrian banded iron ores: Am. Jour, Sci. v. 248, no. 7, 

p. 449-474, illus., July 1950. Cyclical deposition of colloids due to a 

periodic change of reaction (pH) of lake water is proposed to account 

for banding in pre-Cambrian iron ores. The 2-component and 3-component ores, of alternating bands, are both products of primary sedimentation. The regularity and purity of the bands and thickness of 

the beds indicate chemical weathering and deposition. The unique 

environment of shallow lakes and a monsoon-like climate prevailed 

only in the middle pre-Cambrian and has never been repeated in later 

geologic ages.

Salas, Guillermo P.

Bosquejo geo!6gico de la cuenca sedimentaria de Oaxaca: Asoc. Mex. Ge61. 

Petrol. Bol., v. 1, no. 2, p. 79-156, illus. incl. geol. map, Dec. 1949. The 

Triassic, Jurassic, Cretaceous, and Tertiary (?) strata of Oaxaca 

Province, Mexico, are described in detail, with consideration of paleogeography, structure, and oil possibilities. An appendix (p. 152-156) 

by Enrique Diaz Lozano and Raul Escalante Mendoza lists fossils 

identified from the Jurassic and Cretaceous. V. S.

Sales, Reno Haber.

1. (and Meyer, Charles). Interpretation of wall-rock alteration at Butte, 

Montana, in Applied geology, a symposium : Colo. School of Mines Quart., 

v. 45, no. IB, p. 261-273, illus., Jan. 1950. The extensive mineralogical 

and chemical changes involved in the alteration of the quartz monzonite 

at Butte are reviewed; the contemporaneous development of argillized 

and sericitized zones is suggested; and the factors controlling the 

zonal pattern of the alteration are discussed.

2. [Discussion of alteration and its application to ore search], in Applied 

geology, a symposium: Colo. School of Mines Quart., v. 45, no. IB, p. 

284, 321-322, 339-342, illus., Jan. 1950.

Sampson, Norman N. See Barton, C. L.

Sanborn, James F.

Engineering geology in the design and construction of tunnels, in Application 

of geology to engineering practice, Berkey Volume, p. 45-81, illus., Geol. 

Soc. Am., New York, 1950. The function of a geologist and the usefulness 

of geology in tunnel construction is described by using examples of 

specific projects from the work of C. P. Berkey. The Catskill Aqueduct, 

the Delaware Aqueduct, tunnels in New York City, and tunnels in other 

regions are described.
230 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Sanchez Roig, Mario.

1. Los equinodermos f6siles de Cuba: Paleontologla Cubana, I, p. 1-302, illus., 

1949. Systematic descriptions of 310 fossil echinoderms of Cuba. Thtee 

new genera are described: Pseudortlwpsis Lambert, Hernandezaster 

Sanchez Roig, and Palmeraster Sanchez Roig. Approximately 140 new 

species are described.

2. La fauna Jurasica de Vinales: Anales Acad. Ciencias M6dicas, Fisicas y 

Naturales Habana, v. 89, fasc. 2, p. 47-94, illus., 1950-1951. The 

Jurassic stratigraphy and paleontology of the Vinales region of western 

Cuba is briefly reviewed. The major part of the article is given to a 

description of genera and species of Jurassic ammonoids and nautiloids, 

of which 26 are new.

Sand, Leonard B. See Bates, T. F., 1.

Sargent, S.

(and Shotwell, J. Arnold). Preliminary report of a new vertebrate locality 

near Pendleton, Oregon [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1540-1541, Dec. 1950.

Satterly, Jack.

1. Preliminary report on drilling to determine stratigraphic succession at 

Jaab Lake, District of Cochrane: Ontario Dept. Mines Prelim. Rpt. 

1950-3, 14 p. (|), 1950. Drilling on the north shore of Jaab Lake, 

Ontario, to a depth of 1,810 feet yielded a core of Devonian and Silurian 

strata. Formational divisions and correlations are given, with fossil 

identifications by A. B. Wilson. ' V. S.

2. Preliminary report on drilling to determine stratigraphical succession in 

Sanborn Township, District of Cochrane: Ontario Dept. Mines Prelim. 

Rpt. 1950-2, 3 p. ($), Mar. 1950. A drill hole on the east shore of 

Campbell Lake, Ontario, to a depth of 1,129 feet shows Devonian strata 

and pre-Cambrian igneous rocks overlain by 700 feet of Pleistocene 

clays and sands. Fossil identifications by A. E. Wilson are given. V. S.

Saunders, Donald F. See Daniels, F.

Savage, C. N.

Earthflow associated with strip mining: Min. Eng., v. 187, no. 3, p. 337-339, 

illus., Mar. 1950. The effects of excavation work in producing landslidetype movements are discussed and illustrated by an example of strip 

mining near Macksburgh, Ohio. They are found dependent on subsurface materials, water table, drainage pattern, and load distribution 

on bearing surfaces. V. S.

Savage, Donald Elvin.

New evidence concerning the chronologic and geographic range of the longhorned bison of North America [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12,

pt. 2, p. 1541, Dee. 1950.

Savage, John Lucian.

(and Rhoades, Roger Farnsworth). Charles Peter Berkey [biographical 

Sketch], in Application Of geology to engineering practice, Berkey Volume, p. xi-xix; port, Geol. Soc. Am., New York, 1950.

Savage, William S.

General geology and structure in Kirkiand Lake area: Canadian Min. Joiir.,

V. 71, no. 11, p. 1O7 1O9, illus. incl. geol. sketch map, Nov. 195O The pre-Cambrian geology, structure, ana mineralization of tne Kirkiana

Lake gold area in eastern Ontario are briefly Outlined,

Sayre, Albert Nelson.

1. Ground-water investigations in the United States: Smithsonian Inst. Ann

Rpt., 1949, p. 219-225,1950; reprinted irom Econ. Geoiosy, v. 43, no. 7, 

p. 547-552, Nov. 1948. General comments on the progress of investigations.
BIBLIOGRAPHY 231

Sayre, Albert Nelson Continued

2. Applications of geology to the investigation of our water resources, in 

Applied geology, a symposium: Colo. School of Mines Quart., v. 45, no. 

IB, p. 75-106, illus., Jan. 1950. The development of ground-water geology and its importance to the investigation of water resources are 

discussed. General comments on the occurrence and movement of 

ground water are made, and the need for more research on various 

problems is indicated.

3. Ground water: Sci. Am., v. 183, no. 5, p. 14-19, illus., Nov. 1950. In view 

of recent water shortages in many sections of the United States, the 

hydrology, occurrence, and distribution of ground water are discussed.

Sceva, Jack E.

Preliminary report on the ground-water resources of southwestern Skagit 

County, Washington: U. S. Geol. Survey, Washington (State) Groundwater Rpt. 1, 40 p. ($), illus. incl. geol. map, Dec. 1950. The Tertiary 

and Quaternary geologic history of the southwestern part of Skagit 

County, in northwestern Washington, is outlined. Ground water occurs chiefly in sand and gravel strata of the Skagit River delta. Well 

records and water analyses are included.

Schaeffer, Bobb.

(and Dunkle, David Hosbrook). | A semionotid fish from the Chinle formation, 

with consideration of its relationships: Am. Mus. Nat. History Novitates, 

no. 1457, 29 p., illus., Mar. 15,1950. Describes a new species, Semionotus 

. Icdnatensis from the Chinle formation (Upper Triassic) near Kanab, 

Utah. Includes a discussion of the origin and evolutionary trends in 

certain of the Holostei.

Schairer, John Frank.

1. (and Osborn, Elburt Franklin). The system CaO-MgO-FeO-Si02 ; 1, Preliminary data on the join CaSiOs-MgO-FeO: Am. Ceramic Soc. Jour., 

. v. 33, no. 5, p. 160-167, illus., May 1, 1950. "Presents quenching data 

for a portion of the plane CaSiO^-MgO-FeO and optical data on the 

melilites."

2. The alkali-feldspar join in the system NaAlSiO4-KAlSiO4-SiO2 : Jour. Geology, v. 58, no. 5, p. 512-517, illus., Sept. 1950. The study of the alkalifeldspar join KAlSiaOs-NaAlSisOs shows an unbroken series of solid 

solutions between these alkali feldspars. A revised equilibrium diagram 

for the system is given, but the data on which it is based are to be given 

in full later.

Schaller, Waldemar Theodore.

1. Miserite from Arkansas; a renaming of natroxonotlite: Am. Mineralogist, 

v. 35, nos. 9-10, p. 911-921, Sept.-Oct. 1950. A reinvestigation of a pink 

calcium silicate, occurring with wfollastouite in a contact metamorphosed 

shale at Potash Sulphur Springs, Arkansas, indicates that the original 

analysis is in error. The mineral, formerly named natroxonotlite, is 

here renamed miserite. The formula is K2 0.8CaO.10SiO2 .3HoO. Physical, optical, chemical, and X-ray data are given.

2. An interpretation of the composition of high-silica sericites: Mineralogical 

Mag., v. 29, no. 211, p. 406-415, illus., Dec. 1950. The high-silica sericites 

contain more divalent elements, chiefly Mg and Fe, than those sericites 

whose silica content is about the same as nonsericitic muscovite, and 

their chemical composition is intermediate between muscovite and 

leucophyllite. The series muscovite-leucophyllite includes the named 

micas phengite, mariposite and alurgite. It is recommended that only 

the species names of the end members be retained.

Schaub, Hans Peter.

On the pre-Cambrian to Cambrian sedimentation in NE-Greenland: Meddelelser 

om Gr0nland, Bind 114, no. 10, 50 p., illus., 1950. Describes the stratigraphy and conditions of sedimentation of the Lower Limestone group, 

Tommer Bay group, and Upper Limestone group, of pre-Cambrian and 

Cambrian age, in the vicinity of Kap Oswald, Northeast Greenland. The 

three groups represent three periods of marine deposition; the first and 

last mainly of chemical and biochemical character, the middle one of 

clastic and chemical sediments mixed.
232 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Scheidegger, A. E.

1. (and Wilson, John Tuzo). An investigation into possible methods of failure 

of the earth: Geol. Assoc. Canada Proc., v. 3, p. 167-190, illus., Dec. 1950. 

"The question of the cause of island arcs and curved mountain ranges 

is investigated. It is shown that most of these arcs are roughly circular 

or spiral shaped and that their physical cause must lie in the 

asthenosphere. Methods of failure of spherical shells are theoretically 

investigated for matter in different states and applied to the asthenosphere. It is shown that contraction in a cooling earth is the most 

likely cause ..."

2. The collapse of a contracting earth [abs.]: Royal Soc. Canada Proc., 3d ser., 

v. 44, p. 221,1950.

Schemel, Mart P.

1. Carboniferous plant spores from Daggett County, Utah: Jour. Paleontology, 

v. 24, no. 2, p. 232-244, illus., Mar. 1950. Post-Madison, pre-Belden 

plant spores from Lucerne Valley are described, with comparison to 

British, Polish, and Russian samples of similar age. Two new genera, 

Rotaspora and Tripartites, are proposed. V. S.

2. Cretaceous plant microfossils from Iowa: Am. Jour. Botany, v. 37, no. 9, 

p. 750-754, illus., Nov. 1950. Describes plant microfossils collected from 

a Cretaceous coal bed in Plymouth County, Iowa. Species of Chrysotheca, ISpermatites, Arcellites, and Molaspora are described. Molaspora 

is a new genus; the species are new except those of Spermatites.

8. Small-spore correlation methods [abs.]: Am. Jour. Botany, v. 37, no. 8, p. 674, 

Octl850.

Schenck* Hubert Gregory.

(and Keen, Angeline Myra). California fossils for the field geologist. 88 p. 

(t), illus. Stanford University Press, Stanford University, California. 

1950. A handbook for rapid identification of fossils in the field.

Schenk, Edward Theodore. See Campbell, L, 2. 

Schevili, William E.

An upper Jurassic sepioia from Cuba: Jour. Paleontology, v. 24, no. 1, p. 99-101, 

illXls., Jan. 1950. "In evidence that true sepioids existed in the Upper 

Jurassic, a new genus [Voltzia] is described from the Jagua formation 

of western Cuba."

Schieck, Emmett E. See Summerford, H. E. 

r'Schieltz, N. Cyril. See Mielenz, R. C. 

Schmidt, Eugene. See Mann, R.

Schmitt, Harrison Ashley.

1. Ti.e fumarolic-hot spring and "epithermal" mineral deposit environment, in

Applied geology, a symposium: Coio. sciiooi of Mines Quart., \-. 45,

no. IB. p. 209-229, Jan. 1950. Data on fumaroles, hot springs, and "epithermal" (snaiiow) mineral deposits «T-O renewed. The possibility 

of similar conditions of origin is considered and used as a basis for a

detailed discussion of tlie origin of "epithermal" deposits

2. [DlSCUSSlOn Of alteration and its application to ore searcuj, i.n Applied

geology, a symposium: Colo. School of Mines Quart., v. 45, no. IB,

p. 285, 322-324, 327, 338-339, Jan. 1950.

3. Uniformitarianism and the ideal vein; Econ. Geology, v. 45, no. i, P. 54-61,

Jan.-Feb. 1050. views of the genesis of veins, based on the assumption

 Of uniform process O«oUBho-ut the earth's' history, are questioned; evidence IS Cited Of fundamental changes with time;( and broaaer

hypotheses of mineralization are deemed neCfiSSflry. It JS POllM QUt 

that SOine elements are Characteristic of late time, as mercury, selenium,

tellurium, whereas others appear unevenly distributed in early time, as

sulphur. y_ g^
BIBLIOGRAPHY 233

Schmitt, Harrison Ashley Continued

4. Origin of the "epithermal" mineral deposits: Econ. Geology, v. 45, no. 3, p. 

191-200, May 1950. Discussion by P. G. Smith and A. D. Mutch, no. 7, 

p. 701-703, illus., Nov. 1950. "The problem is outlined. 'Epithermal' is 

defined. The characteristics of 'epithermal' deposits are described. The 

various hypotheses of origin are discussed, particularly the possible 

relationship to fumarolic-hot spring phenomena. An attempt is made 

to place the ore mineral phase in a theory of origin. Conclusions are 

followed by suggested implications."

5. The genetic classification of the bed rock hypogene mineral deposits: Econ. 

Geology, v. 45, no. 7, p. 671-680, illus., Nov. 1950. "Genetic hypotheses 

and derived classifications have varied in extreme cycles'. There are 

objections to certain features of the Linclgren hypothesis and classification. A proposed provisional classification is outlined. This uses the 

apparently fundamental and objective factors of depth and temperature 

expressed by ordinates and abscissae on charts. Areas on these represent well known genetic types of ore deposits."

Schneider, Hyrum.

Stratigraphic problems in the Duchesne River Valley; Utah [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1558-1559, Dec. 1950.

Schneider, Robert.

(and Blankenship, R. R.). Subsurface geologic cross section from Claybrook, 

Madison County, to Memphis, Shelby County, Tennessee: Tenn. Dept. 

Conserv. Div. Geology, Ground-Water Inv., Prelim. Chart 1, one sheet, 

1950. In addition to the cross section, a generalized columnar section 

is shown together with descriptive data on the formations, ground-water 

levels, and wells. Chemical analyses of water from several wells are 

also given.

Schoff, Stuart Leeson.

1. Ground water in the Cherokee area, Alfalfa County, Oklahoma: Okla. Geol. 

Survey, Mineral Rpt. 21, 18 p. (t), illus., 1950. Ground water occurs in 

the bedrock, the terrace deposits, and alluvium. The ground water in 

the bedrock is limited in quantity and may be highly mineralized, and 

that from the alluvium has a high mineral content.

2. Geology and water well construction: Am. Water Works Assoc..Jour., v. 42, 

no. 5, p. 475-478, May 1950. A brief discussion of some of the aspects 

of geology encountered in water well drilling, e. g. identification of the 

formation at the site, grain size of the particles in the aquifer, degree 

of consolidation of the rock, soluble minerals in the aquifer, and underground water circulation. Accurate geological information is considered 

fundamental in the preparation of water well contract proposals.

Schopf, James Morton.

Plant microfossils and Paleozoic stratigraphy [abs.] : Oil and Gas Jour., v. 

48, no. 51, p. 178, Apr. 27,1950.

Schraut, Joseph A., Jr.

The occurrence and association of millerite and fluorite in limestone quarries 

of the St. Louis, Missouri, area: Rocks and Minerals, v. 25, nos. 3-4, 

p. 134-135, Mar .-Apr. 1950.

Schulman, James Herbert. See Birks, L. S.; Claffy, E. W.

Schultz, Charles Bertrand.

1. (and Falkenbach, Charles Henry). Phenacocoelinae, a new subfamily of 

oreodonts: Am. Mus. Nat. History Bull., v. 95, art. 3, p. 89-149, illus., 

Nov. 13, 1950. The new subfamily, Phenacocoelinae, contains four 

genera, three of which are new: Phenacocoelus Peterson, Hypsiops, Sul)- 

merycochoerus, and Pseudomesoreodon. Twelve species, of which seven 

are new, and one subspecies are described and illustrated. Except for 

the occurrence of Phenacocoelus stouti in middle Miocene beds, the subfamily is so far known only from the lower Miocene.

2. The use of vertebrate paleontologic evidence in the relative dating of geologic 

deposits [abs.] : Nebr. Acad. Sci. Proc., 60th Ann. Mtg., p. 15, May 1950.
234 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Schultz, John Russell.

(and Krinitzsky, Ellis Louis). Geology of the Lower Red River: Waterways 

Expt. Sta. Tech. Memo. no. 3-319, 72 p., illus. incl. geol. map, Sept. 1950. 

The report gives data on the bedrock geology, comprising the Tertiary 

strata, and the alluvial geology, comprising the Pleistocene deposits. 

The geological history of the region is traced. A section is .devoted to 

engineering geology. The Lower Red River Valley is defined to include 

the area south of the Louisiana-Arkansas boundary. Numerous maps 

show the distribution of geologic formations and of soils.

Schwartz, Ely. See Frizzell, D. L., 3.

Schwartz, George Melvin.

Problems in the relation of ore deposits to hydrothermal alteration, in Applied 

geology, a symposium: Colo. School of Mines Quart., v. 45, no. IB, p. 

197-208, illus., Jan. 1950. Specifically discussed is the effect of different compositions of host rocks as a factor in hydrothermal alteration. 

The problem of interpolating alteration patterns from one region to 

another is discussed, using the San Manuel copper district in Arizona 

as an example. The application of alteration studies to the search for 

ore is also discussed.

Sclar, Charles B.

1. Origin of a layered ultrarnylonite from southeastern Connecticut [abs.]:'. 

Geol. Soc. Am. Bull., v. 61, no. 12, p. 2, p. 1501, Dec. 1950.

2. Time relation of magmatic intrusion to polymetamorphism at Preston, 

Connecticut [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1573, 

Dec. 1950.

Scott, H. Steuart. See Kennedy, G. 0., 2.

Scott, Harold William.

The Big Snowy group (Mississippian) : Billings Geol. Soc., First Annual Field 

Conference, Sept. 15-17, 1950, p. 47-48, illus., 1950. Brief notes on the 

paleogeography of central Montana during the deposition of the Big 

Snowy group sediments.

Scott, W. Frank. See also Wheeler, H. E., 1.

Triassic stratigraphy in the central Wasntch Mountains, Utah [abs.] : Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1530, Dec. 1950.

Scruton, Philip C.

The petrography and environment of deposition of the "Warner, Little Cabin, and 

Hartshorne sandstones in northeastern Oklahoma: Am. Jour. Sci., v.

Q48, no. 6, p. 408-426, illus., June 1950. On the basis of sedimentary

structures, lithologic characteristics, fossil evidence, and areal distribution, three environments of sand deposition are indicated, river channel,

submarine channel, and near shore neritic zone. The deposition environments show that the Des Moines series in the Warner-Pryor district

represents a moderate-sized delta. Correlation of particular beds in tne

delta by means of heavy minerals was not possible. 

Scale, Tom. See McGee, D. A.

Seaman, David Martin.

(and Hamilton, Howard Y.), Occurrence of polymorphous wurtzite in western 

Pennsylvania and eastern Ohio: Am. Mineralogist, v. 35, nos. 1-2, p.

43 5O, illus., Jan. Feb. O.SJ5O. Describes tne field occurrence and mineralogy of three new zinc sulflde polymorphs found in the conemaugn formation in Pennsylvania and Ohio. (See also Frondfil, 1.) V. S.

Searight, Walter Vernon. See also Greene, F. 0.

The status of coal resources studies : Econ. Geology, v. 45, no. 4, p. 324 33O,

JUne-JUly 1900, "DiSCUSSiOn Of the Status or coal resources studies is 

mostly restricted to mapping of coals, exploration, overburden studies, 

mined out areas, areal variation studies, and estimates of coal reserves. 

The work of various workers and agencies in each type of study Is 

summarized and comments on the adequacy of the various studies are 

made."
BIBLIOGRAPHY 235

Searls, Fred, Jr.

The Emerald Isle copper deposit: Econ. Geology, v. 45, no. 2, p. 175-176, Mar.- 

Apr. 1950. The occurrence of abundant chrysocolla and other secondary 

copper minerals at the Emerald Isle deposit, Arizona, is the result of 

deposition from solutions raised by capillary action from the bedrock 

surface into overlying gravel, rather than from deposition by ascending 

hypogene solutions that rose along fissures and spread out into the 

adjacent alluvium. A low-grade ore, located by geophysical surveys, is 

the source of the copper.

Sears, Paul Bigelow.

Pollen analyses in old and New Mexico: Geol. Soc. Am. Bull., v. 61, no. 10, 

p. 1171, Oct. 1950. A brief note on fossil pollen in sediments within the 

Basin of Mexico and in northern New Mexico. Alternation of humid and 

dry conditions and definite connections with glacial retreats and readvances are indicated for both regions. V. S.

Segerstrom, Kenneth. See also Smith, W. C.

Erosion studies at Paricutin, State of Michoacan, Mexico: U. S. Geol. Survey 

Bull. 965-A, 164 p., illus. incl. maps, 1950. Erosional processes were 

studied in the area of Paricutin Volcano, Mexico, because they develop 

so rapidly in the ash under the action of summer rains and dry-season 

winds that they can be observed in operation. Local geology, eruption 

history, characteristics of ash mantle, and erosion, transportation, and 

redeposition of ash are described. V. S.

Seigel, Harold O.

A theory of fracture of materials and its application to geology : Am. Geophys. 

Union Trans., v. 31, no. 4, p. 611-619, illus., Aug. 1950. "A theory of 

fracture of materials is developed which encompasses shear and tension 

failure . . . Applied to geology the theory accounts for certain types 

of faults, jointing in rocks, for certain effects of increase in depth, and for 

the deflection or termination of a fault by an earlier fault or shear zone."

Sellards, Elias Howard.

Geologic section and succession of human cultures in the late Pleistocene of the 

Clovis-Portales region, eastern New Mexico [abs.] : Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1501-1502, Dec. 1950.

Selvig, Walter Alfred.

(and others). American lignites; geological occurrence, petrographic composition, and extractable waxes: U. S. Bur. Mines Bull. 482, 63 p., illus., 

1950. Lignites of Arkansas, California, Texas, North Dakota, Montana, 

and Washington were investigated to determine the yield and properties 

of their extractable montan waxes. The geology of the deposits, the 

economic characteristics of the waxes, and the petrography of the lignites 

are described. V. S.

Serr, Eugene F., 3d.

Progress report, investigations of fluvial sediments of the Niobrara River near 

Cody, Nebraska: U. S. Geol. Survey .Circ. 67, 25 p. (|), illus., May 1950. 

Investigations of fluvial sediments in the Niobrara River basin involve a 

study of the relation between suspended load and total load for the 

streams of the region. A comparison of sediment concentrations in 

the Niobrara River near Cody, Nebraska, indicated that at the local 

gaging station 50 percent of the sediment was transported as bed load, 

whereas at a naturally contracted section % mile downstream, practically the entire sediment load moved in suspension.

Severson, John L.

Devonian stratigraphy, Sunwapta Pass area, Alberta, Canada: Am. Assoc. 

Petrol. Geol. Bull., v. 34 no. 9, p. 1826-1849, illus., Sept. 1950. A 

detailed Ordovician to Mississippian section is given of Sunwapta Pass 

area, Alberta, and the stratigraphy and fossils of the Devonian 

Fairholme, Palliser, and Exshaw formations are described. The Mt. 

Wilson quartzite is assigned an Ordovician or Silurian age rather than 

Devonian. A bibliography is included. V. S.
236 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Shatter, Paul R.

Geology for students of agriculture: Ohio State Univ., Eng. Expt. Sta. News, 

v. 22, no. 2, p. 10, 27-29, Apr. 1950. Outlines the objectives and content 

of a course in geology for agricultural students.

Shainin, Vincent Everett, 1921-1950.

Conjugate sets of en echelon tension fractures in the Athens limestone at 

Riverton, Virginia: Geol. Soc. Am. Bull., v. 61, no. 6, p. 509-517, illus. 

incl. geol. sketch map, June 1950; abs., with title New application of 

en echelon tension fractures to geological stress-strain analysis, v. 54, 

no. 12, p. 1826-1827, Dec. 1943. The conjugate sets of fractures in the 

Ordovician Athens limestone at Riverton, Virginia, demonstrate that 

division of the strained rock mass into wedge-shaped units precedes 

shearing. Two hypotheses are advanced: two periods of stress with 

different directions of elongation, or one period of stress with two sets 

of shears developing simultaneously.

Shand, Samuel James.

Rock-magma and rock-species: Am. Mineralogist, v. 35, nos. 9-10, p. 922-930, 

Sept.-Oct. 1950. "A discussion of two fundamental petrologic terms: 

The word m-ayma has lost its former physical significance and become 

a mere sack-name for any hot silicate fluid. This has led to misunderstanding of the actual physical state of the igneous fluid at the moment 

of intrusion or extrusion. The extravagant multiplication of rock names 

leads the writer to offer a definition of rock-species and to advocate 

the use of phase-petrology."

Sharp, Byron J. See Stringham, B. F., 3.

Sharp, Robert Phillip.

1. Status report of glaciological work on the Seward Ice Field, Yukon Territory : Am. Alpine Jour., v. 7, no. 2, p. 178-183, illus., Jan. 1949. The work 

during the 1948 season was devoted to obtaining information on the 

physical properties of the ice and firn. Data on temperature, density, 

firn pipes, melt-water circulation, ablation, ice thickness, and movement 

are summarized.

2. Report of glaciological work on Project Snow Cornice in 1949: Am. Alpine 

Jour., v. 7, no. 4, p. 432-435, illus., 1950. The work of the 1949 season 

in the Seward ice field, Yukon, is summarized. Data on temperature, 

melt-water circulation, ablation, and ice thickness are given.

3. Needs of modern research in physical geomorphology [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1502, Dec. 1950.

Shaub, Benjamin Martin.

1. The application of numbers to mineral specimens in the field: Rocks ana

Minerals, v. 25, nos. 7-8, p. 345-347, .Tuly-Aug. 1950. Suggests a method

of using numbers typed on adhesive tape and covered with transparent

cellulose tape for the labeling of dry mineral specimens in the field.

V. S.

2. MiCrOStylOlitCS in pre-Cambrian quartzite; a discussion: jour. Geology,

y. 58, no. 6, p. 650-652, Nov. 1950. Discussion of the article "Stylolites

in pre-Camt>rian qxiavtzite [Alice Lake area, Saskatchewan]" by C E B

Conybeare, Jour. Geology, v. 57, p. 8^-85, Jan. 1949. Auth6r'S reply 

follows on p. 652-654.

Shaw, Alan B,

i. Paieogeography and nomenclature, another commentary : Jour. Paleontology,

V. 24, no. 1, p. llO-lll, Jan. 195O. Observations on the wicle distribution

Of trilObitCS Suggest "that species may actually have naa much greater

geographic ranges under the eduablfi CllmateS Of tu6 Gai'ty PaleOZOJC 

than iS COmmon at present, and that the present distribution of some

species of fossils may be attributable to the effective migration of the

poles."
BIBLIOGRAPHY 237

Shaw, Alan B. Continued

2. A revision of several early Cambrian trilobites from eastern Massachusetts: 

Jour. Paleontology, v. 24, no. 5, p. 577-590, illus., Sept. 1950. Tril'obites 

of the Hoppin slate, of early Cambrian age, are redescribed and refigured. 

The Hoppin slate and Weymouth formation, formerly grouped and 

correlated with the "Olenellus zone" are reassigned. The Hoppin slate 

is interpreted as a preolenellidian formation, older than the Weymouth, 

and assigned to the "Obolella zone."

3. (and Stubblefield, Cyril James). Trinucleus Murchison, 1839, as a nomen 

conservandum: Jour. Paleontology, v. 24, no. 5, p. 624-625, Sept. 1950. 

A notification of the impending action to have Trinucleus Murchison, 

1839, designated as a nomen conservandum, displacing the unused Trinucleus Link, 1807. A note to the effect that T. caractaci is the true type of 

T. Murchison is included.

Shaw, George.

1. (and MacCallum, D.). Preliminary map, Southeast Dubuisson, Abitibi 

County, Quebec, ground magnetic survey: Canada Geol. Survey Paper 

49-1, 1949.

2. (and MacCallum, D.). Preliminary map, Southeast Vassan, Abitibi County, 

Quebec, ground magnetic survey : Canada Geol. Survey Paper 49-11,1949.

Shea, Edward F. See Bartram, J. G.

Shenon, Philip John.

Lead and zinc deposits of the Coeur d'Alene district, Idaho, in Dunham, K. C., 

ed., Symposium on ... lead and zinc: Internat. Geol. Cong., 18th, 

Great Britain, Rpt. pt. 7, p. 88-91, illus., 1950; abs., Volume of titles and 

abstracts, p. 50,1948. Briefly describes the geology of the Coeur d'Alene 

district in northern Idaho. The ore bodies occur along fractured and 

shear zones in.the pre-Cambrian quartzites and argilUtes of the Belt 

Series. The ore minerals are galena, sphalerite, tetrahedrite, and others. 

Intense alteration is common, with formation of sericite, clay, and 

carbonates.

Shepard, Francis Parker.

1. (and Macdonald, Gordon Andrew, and Cox, Doak Carey). The tsunami 

of April 1, 1946: Calif. Univ., Scripps Inst. Oceanography Bull., v. 5, 

no. 6, p. 391-528, illus., 1950. A comprehensive and detailed account of 

the tsunami in the Hawaiian Islands caused by a crustal movement on 

the northern slope of the Aleutian Trough. V. S.

2. Beach cycles in southern California: Calif. Univ., Scripps Inst. Oceanography, Submarine Geology Rpt. no. 11, 18 p., illus., Feb. 1950; Beach 

Erosion Bd. Tech. Memo. 20, 26 p., illus., July 1950. The alternation from 

large waves from the northwest during winter storms to small waves 

from the south during the summer produces a yearly cycle of offshoreonshore and lateral sand movement changing the width and contours of 

southern California beaches. Sketch maps and profiles are given. V. S.

3. Contour charts in the San Diego area: Calif. Univ., Scripps Inst: Oceanography, Submarine Geology Rpt. 13, 6 p. ($), illus., Aug. 1950. The charts 

show the topography of La Jolla and Coronado submarine canyons, off 

the southern California coast, in detail.

4. The 1940 E. W. Scripps cruise to the Gulf of California, Part 3, Submarine 

topography of the Gulf of California: Geol. Soc. Am. Mem. 43, vii, 32 p., 

illus., Aug. 10, 1950. Several thousand soundings provided new data 

on the submarine configuration of the Gulf of California, indicating, 

basins and extensive fault scarps. Submarine canyons are found only 

in the southern part of the Gulf, and the topography suggests subaerial! 

erosion. The origin and history of the basins, scarps,, and1, canyons arediscussed. Eleven submarine charts are included!.

5. Photography related to investigation of shore processes, in Symposium of 

information relative to uses of aerial photographs by geologists: Photogrammetric Engineering, v. 16, no. 5, p. 756-769, illus., Dec. 1950. The 

advantages of using photographs for some of the phases of investigation and interpretation of wave and beach phenomena are considered.. 

Numerous illustrations are included. ""

9,80682° 52 16.
238 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Shepard, Francis Parker Continued

6. Mass movement of sand into deep water [abs.]: Oil and Gas Jour., v. 48, 

no. 51, p. 177-178, Apr. 27,1950.

Shepherd, George Frederick.

(and Wilson, Malcolm E., Jr.). Pegasus and Meadows fields, Midland and 

Upton Counties, West Texas: Oil and Gas Jour., v. 48, no. 51, p. 140, 142, 

146, 149-150, 152, illus., Apr. 27, 1950. Reviews the discovery history 

of the two fields and briefly presents stratigraphic and structural data. 

Both fields have resulted from deep drilling exploration in the Midland 

Basin to obtain oil from Ordovician and Devonian horizons.

Sheridan, David S.

Permian (?), Triassic, and Jurassic stratigraphy of the McCoy area of west 

central Colorado: Compass, v. 27, no. 3, p. 126-147, illus., Mar. 1950; 

abs., Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1559, Dec. 1950. The study 

of Permian (?), Triassic, and Jurassic strata in the McCoy area, west 

central Colorado, including detailed measurement of several sections 

and regional correlations, points to alternating marine and continental 

deposition and a close relationship between sedimentation and tectonic 

movements. V. S.

Sherwood, Alexander M. See Jaffe, H. W., 1; Weeks, A. D.

Shock, D. A. See Barnes, V. E., 2.

Shoemaker, Richard Walter. See Hazzard, J. C., 1,4.

Shotwell, J. Arnold. See also Sargent, S.

New locality of Desmostylus hesperus Marsh, from the Astoria Miocene [Oreg.] 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1541, Dec. 1950.

Shrock, Robert Rakes.

Some physical aspects of ancient reef complexes [abs.]: Oil and Gas Jour., v. 

48, no. 51, p. 118, Apr. 27,1950.

Shrode, Raymond S. See Grogan, R. M.

Shuler, Ellis William.

A new elasmosaur from the Eagle Ford shale of Texas; the elasmosaur and 

its environment: Fondren Science Series, no. 1, pt. 2, 32 p., illus., Southern Methodist Univ., Dallas, TeXaS, Apr, 17, 1950. A semi-popular 

account of the new reptile species, Elasmosaurus morgani, collected frOm 

the Upper Cretaceous Eagle Ford shale near Cedar Hill, Texas. The 

discovery Of the Specimen and its skeletal features are described; the

environment in which it lived and its habits are reconstructed. The 

restoration or eiasmosaurs, from skeletal material, is discussed and 

illustrated.

Siever, Raymond.

1. StrUCtUl'e Of HeiTin (NO. 6) Coal bed in Marion and Fayette Counties, and

adjacent parts of Bond, Clinton, Montgomery, Clay, Effingham, Washington, Jefferson, and Wayne Counties : 111. State Geol. Survey CirC. 164, 

100 p., illuS., 1950. Ninety pages Of this report are given over to the

tabulation of drill-hole data on the Herrin coal bed (Pennsylvanian age) 

in southern Illinois. The report is the seventh in a series dealing with 

the structure and extent of the Herrin coal bed.

2. Mississippian-Pennsylvanian unconformity in SOUthem Illinois [abS.J : GeOl. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 15O2, Dec. 195O.

Sigafoos, Robert S. See also Hopkins, D. M.

Some botanical problems in the interpretation of aerial photographs Of tundra

areas: Photogrammetric Engineering, v. 16, no. 3, p. 429-431, June 1950. 

Interpretation of vegetation and surficial geology through aerial photographs depends first on determining the significance of the geologicalbotanical landscape and the identification of the patterns. Aerial photographs are a valuable adjunct to the study of field problems.
BIBLIOGRAPHY 239

Silver, Caswell.

1. Geologic map of the San Juan Basin, in Guidebook of the San Juan Basin, 

New Mexico and Colorado, 1950. Scale 1 inch to 10 miles.

2. The occurrence of gas in the Cretaceous rocks of the San Juan Basin, New 

Mexico and Colorado, in Guidebook of the San Juan Basin, New Mexico 

and Colorado, p. 109-123, illus., 1950. The stratigraphy and structure, 

geologic history, and characteristics of the gas reservoirs are described, 

and conclusions regarding the occurrence and distribution of the gas are 

discussed.

Simmons, H. B. See Patterson, C. B.

Simmons, Jean 6.

A general index to the Journal of Geology, volumes XXXVI through LV, 1928 

through 1947. 182 p. Chicago, University of Chicago Press. 1950.

Simmons, Woodrow W.

Recent geological investigations in the Ducktown mining district, .Tennessee, 

in Snyder, F. G., ed., Symposium on mineral resources of the southeastern 

United States, p. 67-71, geol. map, 1950. Recent investigations and mapping of the geology, particularly the faulting and folding in the Ducktown copper mining area, both above and below ground, are.described. 

It is thought that the controlling factor in ore deposition has been the 

replacement of a favorable bed by ore solutions and that folding was 

important in that it thickened that bed.

Simon, R. F. See Clewell, D. H., 1.

Simons, Merton E. See McLaughlin, K. P., 2.

Simonson, Russell Ray. See Hazzard, J. C., 3.

Simpson, George Gaylord.

1. Cenozoic formations and vertebrate faunas, in Guidebook for the fourth field 

conference of the Society of Vertebrate Paleontology in northwestern 

New Mexico, p. 74-85, illus., 1950; reprinted in part with title, Lower 

Tertiary formations and vertebrate faunas of the San Juan Basin, in 

Guidebook of the San Juan Basin, New Mexico and Colorado, p. 85-89, 

1950. Paleocene and Eocene strata in the San Juan Basin are briefly 

described and a vertebrate faunal list is given. The Santa F6 formation 

(Miocene and Pliocene) in the Rio Grande Depression is described 

and a few mammalian genera listed.

2. A synopsis of three lectures on evolution and the history of life: Wagner 

Free Inst. Sci. Bull., v. 25, no. 2, 12 p., May 1950. Paleontology is discussed as a source of knowledge on biological evolution, and a brief 

survey of evolutionary theories is given. V. S.

3. Trends in research and the Journal of Paleontology: Jour. Paleontology, 

v. 24, no. 4, p. 498-499, July 1950. A comparative classification of papers 

published in the Journal of Paleontology in 1939 and 1949 shows the 

same percentage of descriptive studies and no increased attention to the 

geologic, biologic, or theoretical aspects of paleontology.

4. Evolutionary determinism and the fossil record: Sci. Monthly, v. 71, no. 4, 

p. 262-267, Oct. 1950.

5. Bones in the brewery: Natl. Speleol. Soc. Bull. 12, p. 18-25, illus., Nov. 

1950; reprinted from Nat. History, v. 55, no. 6, p. 252-259, illus., June 

1946. Reports the discovery of the bones of Platygonus compressus, an 

extinct peccary, in a cave in St. Louis, Missouri. The history of the cave 

and the deposition of the bones are discussed. V. S.

Sims, Paul Kibler.

Magnetite deposits of the Dover district, New Jersey [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1503, Dec. 1950.
240 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Sinclair, George Winston.

Note on nomenclature, July, 1950: Jour. Paleontology, v. 24, no. 6, p. 749-754, 

Nov. 1950. Reviews the Proceedings of the International Commission on 

Zoological Nomenclature (Paris meeting, 1948), of which the first half 

have been published in the Bulletin of Zoological Nomenclature, v. 4, 

pts. 1-9. The Proceedings contain the record of discussion and decisions 

which will be incorporated in the rewriting of the Regies. Among the 

i points reviewed are designation of type species, selection of names, 

gender of names, conditional names, homonyms, and what constitutes 

publication.

Sinclair, Martin H. See Kimble,' G. H. T.

Singewald, Quentin Dreyer.

Gold placers and their geologic environment in northwestern Park County, 

Colorado: U. S. Geol. Survey Bull. 955-D, p. 103-172, illus. incl. geol. 

maps, 1950. Discusses the bedrock geology of the area insofar as it 

affects the physiography, the glaciation and glacial deposits of the mountain province and mountain-park province, and the closely related gold 

placers.

Skeels, Dorr Covell.

Geophysical data on the North Carolina Coastal Plain: Geophysics, v. 15, no. 3, 

p. 409-425, illus., July 1950; abs., Oil and Gas Jour., v. 48, no. 51, p. 120, 

Apr. 27, 1950. Gravity and magnetic surveys on the coastal plain of 

northeastern North Carolina and southeastern Virginia indicate a complex basement with a grain approximating north-south. Seismic refraction data show the regional eastward dip of a high velocity layer. 

The reflection survey of Pamlico Sound shows regional east dip, and 

possible faults but no closed structures. Gravity and magnetic maps 

are included. V. S.

Skitsky, Vsevolod Lawrovitch. Bee Rabbitt, M. C.

Slack, Howard A.

(and Whitham, K.). A further investigation of the radioactivity of the 

Round Lake and Elzevir batholiths [abs.] : Royal Soc. Canada Proc., 

3d ser., v. 44, p. 231, 1950.

Slawson, Chester Baker. See also Kaufmann, D. W.

1. Twinning in the diamond: Am. Mineralogist, v. 35, nos. 3-4, p. 193-206, nius.. 

Mar.-Apr. 1950. A detailed discussion, covering structural twinning,

twinning morphology analysis of twinned intergrowths, and relation 

between inclusions and twinning.

2 (and Kohn, Jack A.). Maximum hardness vectors in tne diamond [abs.]: 

Am. Mineralogist, v. 35, nos. 1-2, p. 131, Jan-Feb. 1950.

Slichter, Louis Byrne.

The Rancho Santa Fe conference concerning the evolution of the earth: Natl. 

Acad. Sci. Proc., v. 3(3, no. 9, p. 511-514, Sept. 1950.. The conference 

Sponsored by the National Academy Of Sciences, was held on January 

23-25, 1950, at Rancho Santa Fe, California. The informal diSCUSSion 

by scientists representing the fields of chemistry, geophysics, geology, 

astronomy, fluid mechanics, physics, and oceanography is reported.

Sloss, Laurence Louis. See also Dapples, E. 0.

l. Paleozoic sedimentation in Montana area: Am. ASSOC, Petrol, oeoi. BUU., 

v. 34, no. 3, p. 423-451. illus.. Mar. 1950. "The record of Paleozoic Sedi- mentation In Montana and adjacent states and provinces i-eve<ils the influence of the tectonic framework of the-area on me unoio&c <*«-

acter, distribution, and thickness of the Systems. ISOpaCll RDCl lllDOfacies mapS Of each System are presented ... the complex Cordilleran 

geosyncline, Williston basin, Central Montana trough, and Wyoming 

shelf areas were important factors in controlling sedimentation by their 

tectonic behavior during deposition. The Sweetgrass arch appears to 

have had little influence during sedimentation, but pre-Middle Devonian 

and pre-Middle Jurassic uplift and erosion of the element broadly 

affected the present distribution and. thickness of Paleozoic systems."
BIBLIOGRAPHY 241

Sloss, Laurence Louis Continued

2. Rates of evolution, in Symposium on fundamentals in paleontology: Jour. 

Paleontology, v. 24, no. 2, p. 131-139, illus., Mar. 1950. "Figures on the 

number of species recorded in various categories of marine invertebrates 

may be plotted against computed points on the geologic time scale to 

produce curves which illustrate the frequency distribution of species in 

time. Investigation indicates that the frequency distribution patterns 

of a number of groups of animals for which sufficient data are available 

are represented by symmetrical probability curves. The symmetry of the 

curves suggests a number of theoretical considerations in terms of rates 

of speciation and extinction, longevity of species, and the relationship 

between physical and biologic change."

3. Sedimentary facies and stratigraphic analysis [abs.]: Tulsa Geol. Soc. 

Digest, v. 18, p. 72,1950.

4. (and Dapples, Edward Charles, and Krumbein, William Christian). Paleogeographic distribution and classification of reefs [abs.] : Oil and Gas 

Jour., v. 48, no. 51, p. 118, Apr. 27,1950.

Slotnick, Morris Miller.

A graphical method for the interpretation of refraction profile data: Geophysics, v. 15, no. 2, p. 163-180, illus., Apr. 1950. The theoretical assumptions underlying the method are given, the general case of the single 

dipping interface is considered, and application is illustrated by the 

numerical determination of the traces of four interfaces from data of 

time-distance curves. V. S.

Smith, Alexander.

Mining geophysics in British Columbia: Western Miner, v. 23, no. 2, p. 43-47, 

Illus., Feb. 1950. Applications of magnetic, electrical, electromagnetic, 

and gravitational methods to exploration for metalliferous deposits are 

outlined with brief indications of local geology. A bibliography is given.

V. S. 

Smith, Dudley Thompson. See Kosenholtz, J. L., I, 2.

Smith, Frederick Gordon. See also Kennedy, G. C., 2; Schmitt, H. A., 4. 

A method for determining the direction of flow of hydrothermal solutions: 

Bcon. Geology, v. 45, no. 1, p. 62-69, illus., Jan-Feb. 1950. "A method 

for determining the direction of flow of hydrothermal solutions, using 

the measured temperature of filling of liquid inclusions in vein minerals, 

is outlined. The application of the method to the low-temperature ore 

of the Mclntyre and Lamaque mines shows that the solutions moved 

upward in the inclined ore zones under a driving pressure gradient of 

400 atmospheres per mile. Relative flow velocities can also be measured 

in any one vein."

Smith, H. F.

1. Groundwater resources in Champaign County: 111. State Water Survey 

Div. Rpt. Inv. 6, 44 p. (£), illus., 1950. In Champaign County, Illinois, 

particularly in the Champaign-Urbana area, ground-water resources 

are obtained from the Wisconsin, Illinoian, and Kansan glacial drift, of 

Pleistocene age. Ground-water levels and movement are discussed, and 

records of wells, analyses of water, and a columnar section are given.

V. S.

2. Rockford ground water situation: Am. Water Works Assoc. Jour., v. 42, 

no. 7, p. 701-706, illus., July 1950. The movement and availability of 

ground water in the Rockford, Illinois, area is discussed.

Smith, Harold Theodore Uhr.

1. Progress and problems in photogeology: Photogrammetric Engineering, v. 

16, no. 1, p. 111-118, Mar. 1950. The nature and scope of photogeology 

are characterized by a consideration of its objectives, methods, accomplishments, and limitations. Successful use in basic geology, regional 

mapping, and applied geology is essentially dependent on general geologic 

competence, familiarity with the terrain investigated, and field checks.

' V. S.
242 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950 *

Smith, Harold Theodore Uhr Continued

2. Notes on recent literature relating to photogeology, in Symposium of information relative to uses of aerial photographs by geologists: Photogrammetric Engineering, v. 16, no. 5, p. 781-783, Dec. 1950.

3. Cryopedologic phenomena in the Beartooth Mountains, Wyoming-Montana 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1503,*Dec. 1950.

Smith, J. R.

Preliminary report on Montauban-les-mines area, Portneuf County: Quebec 

Dept. Mines, Mineral Deposits Br., Prelim. Rpt. 242, 6 p. (t), geol. map, 

1950. Brief notes on the pre-Cambrian rocks in the Montatiban-lesmines area, 50 miles west of Quebec City. The lead-zinc mineralization 

at the Anacon Lead Mines property is summarized.

Smith, Joe Fred, Jr. See Albritton, C. C., Jr.

Smith, Kenneth G.

Standards for grading texture of erosional topography: Am. Jour. Sci., v. 248, 

no. 9, p. 655-668, illus., Sept. 1950. A texture-ratio for grading texture 

on contour topographic maps is derived from a study of the drainage 

density of stream-eroded topography. The ratio is a logarithmic function of R. B. Horton's "drainage density." An application of this ratio 

to type areas suggests standard values for three texture-grades, coarse, 

medium, and fine. V. S.

Smith, Matthew Clair. See McElvenny, L. T.

Smith, Melbourne.

The rubies of Cowee Valley, North Carolina: Rocks and Minerals, v. 25, nos. 

9-10, p. 474-480, illus., Sept.-Oct. 1950. Rubies occur in gravels along 

Cowee Creek and Caler Fork, Macon County, western North Carolina. 

The occurrence and associated minerals are described, and the story of 

mining attempts is sketched.

Smith, Neal Johnstone.

The case for gravity data from boreholes: Geophysics, v. 15, no. 4, p. 605-635,

illus., Oct. 1950. As gravity data are related to seismic, electrical, and 

lithologic data because of their common dependence upon rock density,

gravity .surveys in boreholes should benefit all respective methods. Applications, problems, and limitations of such surveys are discussed. V. S.

Smith, Philip Sidney, 1877-1949.

Memorial to Stephen Reid Capps [1881-1949] : Geol. Soc. Am. Proc. 1949, p. 

127-137, port., June 1950.

Smith, Ward Conwell.

(and Segerstrom, Kenneth, and Guiza, Reinaldo, Jr.). Tin deposits of Durango,

Mexico : U. S. Geol. Survey Bull. 962-D, p. 155-204, illus. incl. geol. maps,

1950. Numerous deposits in several districts of Durango, Mexico, are 

described and mapped; among them are those of the Cerro de los RemeaiOS, tne -Ajnerlca-Sapioris district, and. those near Ochoa, Canatl&n,

and Rio Verde. Reported occurrences in southern and western Durango

are reviewed. The economic possibilities for future tin prodllOtlOn arQ

discussed. 

Smith, Warren Dii Pre\

Faults and earthquake possibilities in Oregon [abs.] : Geol. Soc. Am. Bull., v.

61, no. 12, pt. 2, p. 1547, Dec. 1950.

Smitheringale, William V.

Geology of the Keno Hill area: Western Miner, v. 23, no. 6, p. 43-46, geoi. sketch

map, June 1950. Describes the faulted structure and silver-lead vein 

mineralization of the Keno Hill area, Mayo district, Yukon Territory.

Snavely, Parke D., Jr.

(and others). Large intrusive bodies in the central Coast Range of Oregon 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1503-1504, Dec. 1950.
BIBLIOGRAPHY 243

Snyder, Frank G.

(editor). Symposium on mineral resources of the southeastern United States, 

vii, 236 p., illus. Knoxville, Tennessee, Univ. Tennessee Press, 1950. 

The symposium contains 20 papers dealing with the economic geology of 

metallic and non-metallic minerals and ground water with a view toward 

future exploration and development.

Socolow, Arthur A.

Geology of the Irwin district of Colorado [abs.]: Am. Mineralogist, v. 35, nos. 

3-4, p. 288, Mar.-Apr. 1950.

Sohn, Israel Gregory.

1. Growth series of ostracodes from the Permian of Texas: U. S. Geol. Survey 

Prof. Paper 221-C, p. 33-39, illus., 1950. Describes two new ostracode 

genera, Aurikirkbya and Miltonella, from the Permian of the Glass Mts., 

Texas, and establishes a new family, Miltonellidae. Measurements of 

hinge length, height, and convexity, made on 252 specimens of Aurikirlcbya wordensis indicate that it is not possible to distinguish growth 

stages in this species with these criteria. Calculations on the percentage 

of surviving individuals expected at successive growth stages are given.

2. Growth stages in fossil ostracodes: Am. Jour. Sci., v. 248, no. 6, p. 427-434, 

June 1950; abs., Geol. Soc. Am. Bull., v. 59, no 12, pt 2, p. 1353, Dec. 

1948. "Principles for the rate of growth in Arthropoda as applied to 

ostracodes, the number of growth stages that occur, and growth factors 

(the percentage of increase in size between growth stages) are discussed. 

Hans Przibram's growth factor' of 1.26 for all Arthropoda is proved . . . 

not to apply to ostracodes. Limitations inherent in the study of growth 

stages of fossil ostracodes are pointed out."

 3. Comparison of etched silicified ostracodes from limestone with calcareous 

forms from subjacent shale [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 

2, p. 1504, Dec. 1950.

Sokoloff, Vladimir Petrovich. See also Hunt, C. B., 2.

Sampling and testing of .soil and rock for copper, lead and zinc in geochemical 

reconnaissance: Mines Mag., v. 40, no. 11, p. 15-22, illus., Nov. 1950. 

The procedures used in preparation of the samples, and test solutions, 

the tests for copper, lead, and zinc, and the interpretation of dithizone 

colors are described. Preparation and care of the reagents is also noted.

Solecki, Ralph S.

Archeology and geology in northwestern Alaska: Earth Sci. Digest, v. 4, no. 7, 

p. 3-7, illus., Feb. 1950. Flint artifacts are reported found north of the 

Brooks Range. Local geological features are mentioned as clues to 

possible Asiatic-American migration of prehistoric man. V. S.

Sosman, Robert Browning.

Centripetal genesis of magmatic ore deposits [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1505, Dec. 1950.

Soule, John Henderson.

Investigation of the Royal John lead-zinc deposits, Grant County, N. Mex.: 

U. S. Bur. Mines Rpt. Inv. 4748, 8 p. (t), illus. incl. geol. map, Nov. 1950. 

The Royal John deposit is located on the west slope of the Mimbres 

Mts. in the Swartz (Carpenter) mining district of southwestern New 

Mexico. The ore occurrence and structure are described briefly.

South Dakota Geological Survey.

Panel diagram, subsurface formations in South Dakota. One sheet. Scale 

1:1,300,000. 1950.

Spackman, William, Jr. See Barghoorn, E. S., Jr.
244 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Spangler, Walter Blue.

1. (and Peterson, Jahn Jean). Geology of Atlantic coastal plain in New Jersey, 

Delaware, Maryland, and Virginia: Am. Assoc. Petrol. Geol. Bull., v. 34, 

no. 1, p. 1-99, illus., Jan. 1950. Detailed lithologic descriptions of Cretaceous and Tertiary stratigraphy based on field studies of all important 

outcrops of the area are used to solve correlation problems. Former 

interpretations of formation relationships and ages are contrasted with 

those advanced. A bibliography is appended, and thirteen structure 

contour and isopach maps are included. V. S.

2. Subsurface geology of Atlantic coastal plain of North Carolina: Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 1, p. 100-132, illus., Jan. 1950. The geological and geophysical methods used and the data obtained on Cretaceous 

and Tertiary subsurface formations during petroleum exploration in 

1945-47 are outlined, and interpretations are advanced of local stratigraphy and structure. Formational identification depends mainly on 

faunal content, which ceases to be reliable below the beds of Taylor 

age. V. S.

Spence, D. See Risi, J.

Spicer, Herbert Cecil.

Investigation of bedrock depths by electrical-resistivity methods in the RiponFond du Lac area, Wisconsin: U. S. Geol. Survey Circ. 69, 37 p. (t), 

illus., Mar. 1950. "The field measurements indicate that with favorable 

surface conditions, resistivity methods may be used in this area to locate 

the pre-Cambrian rocks to depths of approximately 1,500 feet."

Spieker, Edmund Maute.

The transition between the Colorado plateaus and the Great Basin in central 

Utah: Utah Geol. Survey, Guidebook to the geology of Utah, no. 4, 

106 p., illus. incl. geol. map, 1949. Describes the Jurassic, Cretaceous, 

and Tertiary strata and structure of the area comprising the Sevier 

Valley and adjacent Gunnison [San Pitch Mountains] and Wasatch 

Plateaus. A geologic map, cross sections, and a bibliography are given.

V. S, Spiroff, Kiril.

Seneca calcite: Rocks and Minerals, V. 25, DOS. 9-10, P. 466, Sept.-Oct. 1950. 

Reports the recent deposition of calcite coatings on the lava walls in 

deep levels Of the Seneca copper mine, on the Kearsarge lode, Keweenaw

County, Michigan,

Spitznas, Roger L.

Potholes and channel scrolls in the Navajo sandstone, Zion National Park, 

Utah: Earth Sci. Digest, v. 5, no. 5, p. 3-6, illus., Dec. 1950. Describes 

potholes and semi-circular borings along Pine and Clear Creeks and

their tributaries in Zion National Park, Utah,

Spradlin, Virgil E.

The relation of initial production to true resistance in the Southeast Newcastle

field, Cleveland and McClain Counties, Oklahoma: Okia. Acad. sci. 

Proc., v. 29 (1948), p. 45-49, illus., Mar. 1950. A statistical study was 

made to determine whether the true electrical resistivity of beds, deter-

:mi "?a *^om loKeing data, could be sufficient to predict the initial Oil

PrOdllCtlOn from the BOIS O-Arc limestone of the Southeast Ne^onstle Lid. The results showed that additional geologic information i*

necessary. V. S. 

Sikrineer, G. D. See also Kennedy, G. C., 2.

Mineral deposits Of the Cat LaUe-Winnipeg River tiren ; T.O.C clx. Bonnot T>S^i«.ion Manitoba: Manitoba Dept. Mines and Nat. Res., Mines Br rm>. 49-7,

14 p., illus. incl. geol. map, 1950. The copper-nickel, chrome, lithium, and 

beryllium deposits are described, and notes are included on tin, gold, 

and radioactive minerals.

Staatz, Mortimer Hay.

(and Trites, Albert F., Jr.). Relation of type of country rock to the shape of 

granitic pegmatite intrusions [abs.] Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1505-1506, Dec. 1950.
BIBLIOGRAPHY 245

Stacey, F. R.

(and Wynn, W. 0. R.). Building materials from St. Vincent: Colonial Geology 

and Mineral Resources, v. 1, no. 2, p. 152-163, 1950. Clay, volcanic 

rocks, sand, and coral from St. Vincent, British West Indies, were submitted to laboratory tests to determine their suitability as materials for 

brick and concrete. The results of the tests are given. It is indicated 

that good quality pozzolana may be made from the volcanic ash.

Stadnichenko, Taisia.

(and Murata, Kiguma Jack, and Axelrod, Joseph Meyer). Gerroaniferous 

lignite from the District of Columbia and vicinity: Science, v. 112, no. 

2900, p. 109, July 28, 1950. Reports a high content of germanium in 

lignite of the Patuxent formation (Lower Cretaceous) in the District 

of Columbia area. The content of the ash is up to 6 percent or 10,000 

times the average content in the crust of the earth.

Stainbrook, Merrill Addison.

1. The fauna and correlation of the McCraney limestone of Iowa and Illinois: 

Am. Jour. Sci., v. 248, no. 3, p. 194-213, Mar. 1950. Faunal evidence and 

lithologic study of Mississippian Kinderhook strata along the Mississippi 

River indicate that the McCraney limestone can be correlated with the 

Louisiana formation.

2. Brachiopoda and stratigraphy of the Aplington formation of northern Iowa: 

Jour. Paleontology, v. 24, no. 3, p. 365-385, illus., May 1950. The 

Aplington formation of northern Iowa, a dolomite formerly included 

with the Sheffield shale beds, is distinguished, and the type section is 

described. Faunal comparisons suggest a Lower Mississippian age. 

Three new brachiopod genera, including 17 species, are described and 

illustrated.

Stainforth, Robert Masterman.

1. Types of Pullenia duplicata Stainforth: Jour. Paleontology, v. 24, no. 4, 

p. 502, July 1950. A type description and co-types are indicated for 

Pullenia duplicata Stainforth, which replaces the invalid 'Pullenia Compressiuscula Reuss, V. S.

2. Comments on "A pitfall of paleontologic 'Latin' ": Jour. Paleontology, v. 

24, no. 4, p. 504-505, July 1950. Considerations are given why a varietal 

name should agree in gender with the generic name to which it is 

attached. V. S.

Stallman, Robert William.

(and Klaer, Fred Harlen, Jr.). Ground-water resources of Noble County, 

Indiana: Ind. Dept. Conserv. Div. Water Res. Bull. 5, 103 p. (I), illus. 

incl. geol. map, 1950. The ground water occurs in the glacial drift which 

has an average thickness of 350 feet. The glacial geology, water-bearing 

formations, and conditions in specific areas are described. A map of 

surficial glacial deposits is included.

Staples, Lloyd William.

1. Cubic pseudomorphs of quartz after halite in petrified wood: Am. Jour. Sci., 

v. 248, no. 2, p. 124-136, illus., Feb. 1950. The quartz cubes, occurring in 

petrified wood from the Sweet Home petrified forest near Holley, Oregon, 

are considered pseudomorphous after skeletal halite crystals. Distribution through the wood disproves the view that skeletal halite develops 

only on an evaporating surface. . V. S.

2. A realgar and orpirnent sagenite: Mineralogist, v. 18, no. 10, p. 492, 494, 

Oct. 1950. Sagenite is defined as "inclusions of an acicular mineral in 

any of the silica minerals." The sagenite described consists of realgar 

and orpiment crystals in a matrix of quartz and chalcedony discovered 

near Trent, Oregon. The separation of the crystals from the matrix and 

chemical tests which indicate that the maximum temperature to which 

the sagenite has been subjected is 300 C are described.

3. Jordisite and ilsemannite [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 

2, p. 1530, Dec. 1950.
246 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Stauffer, Clinton Raymond.

Some Pleistocene mammalian inhabitants of Minnesota : Minn. Acad. Sci. Proc., 

v. 13, p. 20-43, illus., 1945. Records the various finds of portions of the 

skeletons of musk ox and beaver from Pleistocene glacial drift deposits. 

Particular attention is given to the elephant remains in the drift. Pour 

species are described briefly, and 104 occurrences are listed.

Stead, Frank Walter.

1. (and others). Airborne radioactivity survey of parts of Marquette, Dickinson, and Baraga Counties, Michigan: U. S. Geol. Survey. Scale 1 inch 

to 2 miles. 1950. A map showing the location of radioactivity anomalies 

in the central part of the Upper Peninsula of Michigan. JBrief explanatory notes are given.

2. Airborne radioactivity surveying speeds uranium prospecting: Eng. Min. 

Jour., v. 151, no. 9, p. 74-77, illus., Sept. 1950. The equipment and 

technique employed in an aerial survey for uranium-bearing ores are 

described.

Stebinger, Eugene, 1883-1951.

Petroleum in the ground, in World geography of petroleum, edited by W. E. 

Pratt and D. Good, Am. Geog. Soc. Spec. Pub. no. 31, p. 3-24, illus., 

1950. A discussion of the geological principles governing the occurrence 

of petroleum, the methods of geological and geophysical exploration for 

petroleum, the extent of exploration, and the estimation of reserves. A 

table of world production and estimated reserves, by countries, as of 

January 1,1949, is given.

Steele, G. See Wheeler, H. E., 1.

Steenland, Nelson Clarence. See Ewing, W. M., 3.

Stelck, Charles Richard. See Warren, P. S.

Stenzel, Henryk Bronislaw.

1. Ball clay of the Troup district, Texas: Texas Univ. Bur. Econ. Geology Pub. 

5019, p. 5-38, illus. incl. geol. maps, Oct. 1, 1950. The Cretaceous and 

Eocene strata are described in detail with data on surface.and subsurface 

distribution, composition, vegetation, soils, and topography. Several 

measured sections are given. The extent and relationships of the ball 

clay are discussed with a view to future exploration.

2. LOWer Eocene ball day in east Texas [abs.] : Geol. Soc. Am. Bull., v. 61, no.

12, pt. 2, p. 1506, Dec. 1950.

Stephens, Fred H.

Uranium "hot spot": Western Miner, v. 23, no. 9, p. 41-46, illus. incl. geol.

sketch mnp, gept. 1950. Statements from existing literature and per-

' SOnal Observations on the geology, uranium discoveries and prospects,

and exploratory activities in the pre-Cambvian of the Goldfields area,

Lake Athabaska, north-western Saskatchewan. V. S.

Stenhenson, Lloyd William.

Index fossils, with particular reference to the Upper Cretaceous of eastern

United States: Geol. Soc. Japan Jour., v. 56, no. 653, p. 8D-94, Feb. 1950.

-A_n address before the Geological Society of Japan in which the significance of index fossils is outlined and examples from Cretaceous strata 

are cited. 

Stephenson, Robert Charles. See also Cleaves, A. B., 1.

Non-metallic mineral resources of Pennsylvania, in Symposium on mineral 

resources of Pennsylvania: Pa. Acad. Sci. Proc., v. 24, p. 215-219, 195O; Pa. Dept. Internal Affairs Monthly Bull,, v, is, no. 10, p. T-IO, sept.

1950. General comments on the occurrence and potential utilization of 

Industrial minerals in Pennsylvania. Cement, emshed stone, refractory

clays, ganister, glass sand, slate, and other commodities are discussed.
BIBLIOGRAPHY 247

Sternberg, Charles Mortram.

1. Pachyrhinosaurus canadensis, representing a new family of the Ceratopsia, 

from southern Alberta: Canada Natl. Mus. Bull. 118, p. 109-120, illus., 

1950. Proposes a new family in the Ceratopsia, Pachyrhinosauriclae, 

and describes the new genus and species, Pacliyrliinosaurus canadensis, 

from the Edmonton formation, Upper Cretaceous, on the north side of 

the Little Bow River, east of Carmongay, Alberta.

2. Leptoceratops, the, most primitive horned dinosaur, from the Upper Edmonton of Alberta [abs.]: Royal Soc. Canada Proc., 3d ser., v. 44, p. 229,1950.

Steven, Thomas August.

Age and structural control of the fluorspar deposits in the Northgate district, 

Colorado [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1506, Dec. 

1950.

Stevens, Nelson Pierce. See Bray, E. E.

Stevens, Rollin Elbert.

Perley G[ilman] Nutting [1873-1949]: Washington Acad. Sci. Jour., v. 40, 

no. 5, p. 175-176, May 15,1950.

Stevenson, John Sinclair.

1. Geology and mineral deposits of the Zeballos mining camp, British Columbia: 

British Columbia Dept. Mines Bull. 27, 145 p., illus. incl. geol. maps, 

1950. A comprehensive, detailed description of the rocks, structure, 

and ore mineralization at the Zeballos gold mining camp on the west 

coast of Vancouver Island. Detailed data and numerous sections and 

maps are given for each of the mining properties in the area.

2. Some notes on uranium in British Columbia: Canadian Min. 'Met. Bull. no. 

460, p. 434-435, illus., Aug. 1950; Canadian Inst. Mining and Metallurgy 

Trans., v. 53, p. 285-286, 1950. Uraninite has been found at the Gem 

mine in the Bridge River area and at the Victoria mine south of Hazelton. 

At both places, it is associated with cobalt-nickel sulfarsenides and 

molybdenite. Suggestions for future prospecting for uranium ores in 

British Columbia are included.

3. Mineral deposits containing uranium in British Columbia [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1530-1531, Dec. 1950.

Stevenson, Robert Evan. See Willard, B., 4. 

Stevenson, Robert Everett. See Emery, K. O., 6.

Stewart, Duncan, Jr.

Michigan geology; progress bibliography, Pt. 6: Mich. State Coll. Dept. Geology 

and Geography, 12 p. ($), Mar. 1950. Additional references for the 

period 1943-1949, and from the Natl. Acad. Sci. Proc. for 1915-1948.

Stewart, Grace Anne.

Ostracocla from Middle Devonian bone beds in central Ohio: Jour. Paleontology, 

v. 24, no. 6, p. 652-666, illus., Nov. 1950. "This -paper records 29 species 

and one variety of ostracodes . . . with the exception of one species, 

Euglyphella spinosa, n. sp., and some undefinable fragments from Bone 

bed no. 2 of the Columbus limestone, all forms are from Bone bed no. 3 

(HacLrophyllum zone of Stauffer) of the Delaware formation. The 

species are distributed through ten families and 21 genera; nine species 

and one variety are described as new. The assemblage cannot be linked 

directly with any described fauna."

Stewart, W. Alan. See also Griswold, D. H.

Unconformities, in Subsurface geologic methods, p. 32-51, illus., Colo. School 

of Mines, 1950. An account of types of unconformities, criteria for their 

recognition, and their importance in ore and petroleum exploration.
248 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Stewart, Wilson N.

1. Report on the Carr and Daniels collections of fossil plants from Mazon 

Creek: 111. State Acad. Sci. Trans., v. 43, p. 41-45, illus., 19501 The Carr 

and Daniels collections of fossil plants from Mazon Creek, Illinois, now 

owned by the Natural History Museum of the University of Illinois, 

contain 4018 specimens. Fifty-one genera and 103 species have heen 

identified and are listed.

2. A new species of Medullosa [abs.] : Am. Jour. Botany, v. 37, no. 8, p. 674, 

Oct. 1950. . The specimen is from the McLeansboro formation, of Pennsylvanian age, at Berryville, Illinois.

Stieff, Lorin R. See Murata, K. J.

Stirton, Ruben Arthur.

1. Principles in correlation and their application to later Cenozoic Holarctic 

 continental mammalian faunas: Internat. Geol. Gong., 18th, Great 

Britain, Rpt.pt. 11, p. 74-84, illus., 1950. The problem of the relation 

Of Miocene and Pliocene synchrony to mammalian evolution and distribution is diSCUSSed. The importance of definite concepts on which 

accurate correlations can be based is stressed. It is suggested that 

established epoch terminology should be retained and the law of priority 

rigidly applied in geologic time terminology.

2. Late Cenozoic avenues of dispersal for terrestrial animals between North 

America and South America [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, 

pt. 2, p. 1541-1542, Dec. 1950.

Stobbe, Helen Ruth.

Dacites from Laughlin Peak, Colfax County, New Mexico [abs.]: Am. 

Mineralogist, v. 35', nos. 3-4, p. 288-289, Mar-Apr. 1950.

Stock, Chester, 1892-1950.

1. Rancho La Brea, a record of Pleistocene life in California: Los Angeles

County Mus. Science Ser. no. 13, Paleontology no. 8, 4th ed., 80 p., illus.,

June 1, 1949. A well-illustrated, popular account of the fossil forms

that have been collected from the asphalt pits at Rancho La Brea, in

southern California. 

2 Biographical memoir of John Campbell Merriam, 1869-1945; Natl. Acad.

Sci. Biog. Mem., v. 26, no. 11, p. 209-232, port., 1950. His complete

bibliography is included. 

3. Note on a hysenarctid bear from the Middle Pliocene of Chihuahua, Mexico:

S. Calif. Acad. gci. Bull., v. 49, pt. 1, p. 1-2, illus., Jan.-Apr. 1950.

Describes two upper molars of Hycenarctos cf. schneideri collected from

Middle Pliocene beds at Arroyo Huachin, near Rincon, Chihuahua,

Mexico.

4 25000-year-old horse: Engineering and science, v. 14, no. 1, P- 16-17, 

' iiius., Oct. 1950. Brief, general .notes on EqUU* coiwersidens leoni, a

Pleistocene horse, skeletons of which have been found in San Josecito

cave in southern Nuevo Leon, Mexico. The skeleton is compared to that

of a specimen from RanCb.0 L& Brea, California.

5 Bears from the Pleistocene cave of San JoS^dtO, Nuevo Le6n, Mexico:

Washington Acad. Sci. Jour., v. 40, no. 10, P. 317-321, iiius., Oct. 15,1950.

Two types of bears have been identified among the fossil mammals from 

San JOSecito cave, and one is assigned to SL U6W Species, Tremarctos

mexicanus. The characteristics of the jaw and skull fragments are 

^escribed and compared with other specimens.

stockweii, Clifford Howard.

1. Preliminary map, southwest

Canada Geol. Survey Paper 49-23, 1949. A geolOglC W&P with marginal 

notes. Proterozoic graywacke and arkose occupy most of tflfi flf6$ > 

Beewatm andesite predominates in the north. V. S.

2. Preliminary map, southeast Dasserat, Temiscamingue County, Quebec: 

Canada Geol. Survey Paper 49-/0,1&49- A geologic map with marginal 

notes. Keewatin andesite and post-TimiskamiOg GlOl'ite ana syenite are 

prominent in the north of the area, and Pontiac sedimentary mica SOhiSt 

in the south. V. S.
BIBLIOGRAPHY 249

Stockwell, Clifford Howard Continued

3. The use of plunge in the construction of cross-sections of folds: Geol. Assoc. 

Canada Proc., v. 3, p. 97-121, illus., Dec. 1950. "This paper outlines a 

graphical method for the construction of sections of folded rock formations by projection of formational contacts down the plunge to the plane 

of the section. Many plunge determinations are required, not only in the 

region of the axes but also on the flanks of the fold. They are given 

by the lines of intersections of planes represented by bedding strike and 

dip symbols on a map. The method is illustrated by the construction 

in plan and section of ideal synclinal folds of two types . . ."

Stoddard, Carl.

(and Carpenter, Jay Arnold). Mineral resources of Storey and Lyon Counties, 

Nevada: Nev. Univ. Bull., Geology and Mining Ser., no. 49, v. 44, no. 1, 

115 p., illus., Mar. 1950. The occurrence and production of silver and 

gold are described by mining districts, with particular attention to the 

Comstock and Yerington districts. A comprehensive bibliography is 

included. V. S.

Stokes, William Lee.

1. Mesozoic stratigraphy of the Uinta Basin, in Petroleum geology of the Uinta 

Basin: Guidebook to the Geology of Utah, no. 5, p. 97-99, 1950. Lists 

the events comprising the Mesozoic paleogeography of the Uinta Basin 

area, Colorado and Utah. A formation table is included.

2. Pediment concept applied to Shinarump and similar conglomerates: Geol. 

Soc. Am. Bull., v. 61, no. 2, p. 91-98, Feb. 1950. The characteristics of 

the Shinarump and Buckhorn conglomerates and Dakota sandstone of 

the western interior, difficult to explain by current theories, suggest their 

formation by pedimentation. Revisions of stratigraphic terminology 

and age assignments are discussed. V. S.

3. Some unusual ripple marks' from the Triassic of Utah: Jour. Geology, v. 

58, no. 2, p. 153-154, illus., Mar. 1950. The silty fades of the Moenkopi 

formation near Temple Mountain shows several types of complex ripple 

marks over wide areas and through a considerable depth. Three components can be distinguished in the most complex mark. V. S.

4. Early Cretaceous sediments in eastern Utah [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1559, Dec. 1950.

Stokley, John Alien.

Industrial limestones of Kentucky: Ky. Geol. Survey Rpt. Inv. 2, 51 p. (t) 

illus. incl. geol. map, 1949. "Gives general information on the chemical 

composition, character, thickness, and distribution of the more important 

limestone and dolomite formations of Kentucky and indicates possible 

uses ... in the chemical industries." . A table of exposed formations 

in Kentucky and a general geologic map of the state are included.

Stoll, Walter Clericus.

Mica and beryl pegmatites in Idaho and Montana: U. S. Geol. Survey Prof. 

Paper 229, 64 p., illus. incl. geol. maps, 1950. Describes and gives maps 

and structure sections of mines and prospects in the Avon mica district, 

Latah County, Idaho, several other districts in Idaho, and the Tobacco 

Root Mts., Madison County, Montana.

Stone, Edwin A. See Fowler, G. M., 1. 

Stose, Anna Isabel Jonas. See Stose, G. W., 3.

Stose, George Willis.

1. Comments on the Taconic sequence in Pennsylvania: Geol. Soc. Am. Bull., 

v. 61, no. 2, p. 133-135, geol. map, Feb. 1950. Evidence is given in favor 

of assigning the shale belt from Hummelstown to Shepherdstown to the 

Taconic sequence, rather than to the Martinsburg shale. From the data, 

faults are inferred to account for the unconformable relations of the 

rocks. V. S.
250 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Stose, George Willis Continued

2. Evidence of the Taconic sequence in the vicinity of Lehigh River, Pennsylvania : Am. Jour. Sci., v. 248, no. 11, p. 815-819, illus. incl. geol. sk. map, 

Nov. 1950. Further study in the Allentown West quadrangle, eastern 

Pennsylvania, indicates that the Hamburg klippe, containing rocks of the 

Taconic sequence, extends considerably west of the Lehigh River. Limestone inliers in the klippe, near Seemsville, of apparent Upper Cambrian 

age, may represent the floor on which the Taconic shales were deposited 

and which were thrust with the shales to their present position.

3. (and Stose, Anna Isabel Jonas). Folded low-angle overthrusts of the 

southern Appalachians [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 

2 p. 1506-1507, Dec. 1950.

Stothart, R. A.

Reef surveying with radioactivity: World Oil, v. 130, no. 1, p. 61-63, illus., Jan. 

1950. The radioactive method of surface exploration for oil has been 

successfully applied to the mapping of reef structures. Emanations 

are given off by shales overlying oil zones. The survey technique is 

described, and geologic interpretation is illustrated by profiles plotted 

through productive and non-productive areas. V.S.

Stout, Thompson Mylan.

1. The Pliocene-Pleistocene boundary in the Great Plains region of North 

America: Internat. Geol. Gong., 18th, Great Britain, Rpt. pt. 9, p. 99, 

1950. Comments on the importance of the Great Plains region in the 

determination of the Pliocene-Pleistocene boundary. It is suggested 

that the Lisco member of the Broadwater formation is the probable 

equivalent of the Fullertori clay of Aftonian age and is also, on the 

basis of fossil mammals, Villafranchian. The Villafranchian can then 

be regarded, at least in part, as Aftonian or First Interglacial, and the 

Cromerian as Yarmouth or Second Interglacial.

2. Relative dating within the Cenozoic between Eurasia and North America 

[abs.]: Nebr. Acad. Sci. Proc., 60th Ann. Mtg., p. 14-15, May 1950.

Stovall, John Willis.

1. A new cotylosaur from north central Oklahoma: Am. Jour. Sci., v. 248, no. 1, 

p. 46 54, nius., Jan. 195O. Describes a new genus of Permian reptiles, 

Labi&osaurikos meachami. v. s.

2. (and Langston, Wann. jr.). Acrocanthosaurus atokensis, a. new genus and

Species Of Lower Cretaceous Theropoda from Oklahoma Am Midland 

Naturalist, V. 43, no. 3, p. 696-728, illUS., May 1950. Describes and

figures in detail a new genus and species of aberrant Theropoda from the

Trinity sands of Lower Cretaceous age in Atoka County, southeastern

Oklahoma. The genus is characterized by greatly elongated and massive 

neural spines, and the relationships to other long-spined forms are discussed. The genus appears most closely allied to the Allosauridae.

3. (and McAnulty, William Noel). The vertebrate fauna and geologic age of

Trinity River terraces in Henderson County, Texas: Am. Midland Naturalist, v. 44, no. i, p. 211-250, illus., July 1950. The various stratigraphic units of the Pleistocene in Henderson and adjoining counties, 

that is, up-dip terrace deposits, are correlated with equivalent formations of the Gulf Coastal Plain, and the age of these terraces is deter- mined aS Compared With glacial deposits in the glaciated states. It is

concluded that the three terraces were laid down during the Wisconsin

stage of the Pleistocene.

Stow, Marcellus Henry.

Introduction, in The James River Basin, past, present and future, p. 435-441, 

illUS., Va. ACafl. SCi., 1950. GiYeS a brief description of an air view of

the topography and geology of the James River from its source in Highland .County to its mouth at Cape Henry, as an introductory Statement to the detailed descriptions of tne physiographic provides through

which it flows.
BIBLIOGRAPHY 251

Straczek, John A. See also U. S. G. S., 2.

Manganese en Cuba, 1940-1945: Bol. Historia Nat., v. 1, no. 4, p. 161-168, 

Dec. 1950. General information on the types of manganese deposits, 

exploration, and reserves.

Strahler, Arthur Newell.

1.' Davis' concepts of slope development viewed in the light of recent quantitative investigations: Assoc. Am. Geographers Annals, v. 40,' no. 3, p. 209- 

213, Sept. 1950; abs., no. 2, p. 135, June 1950. "The purpose of this paper 

is to review briefly the concepts of slope development held by W. M. 

Davis, to explain the contrast between Davis' explanatory-descriptive 

system of geomorphology and the dynamic-quantitative system endorsed 

by G. K. Gilbert, and to note certain uses of quantitative techniques in 

the study of slope problems."

2. Equilibrium theory of erosional slopes approached by frequency distribution 

analysis, Parts 1-2: Am. Jour. Sci., v. 248, no. 10, p. 673-696, illus., Oct. 

 1950; no. 11, p. 800-814, illus., Nov. 1950. A frequency distribution analysis of slope.angles in several mature regions shows a prevailing condition of form-equilibrium, accompanying a steady state in an open 

system of erosion and transportation. Differences in slope angles in the 

Verdugo Mts. and San Rafael Hills, California, indicate a principal 

dependence on factors other than lithology or directional exposure. V. S.

Strain, William Samuel.

Juarez Mountains (Sierra del Paso del Norte), in West Texas Geological 

Society Guidebook, 1950 Field Trip, October 7-8, 1950, p. 46-47, 1950. 

The rocks of the Juarez Mts., in Chihuahua, Mexico, just south of El 

Paso, Texas, are Cretaceous strata cut by faults and intruded by Cenozoic 

sills and dikes.

Straley, Harrison Wilson, 3d.

1. (and Richards, Horace Gardiner). The Atlantic Coastal Plain: Internat. 

Geol. Cong., 18th, Great Britain, Rpt. pt. 6, p. 86-91, illus., 1950; abs., 

Volume of titles and abstracts, p. 35, 1948. The stratigraphy of the 

Atlantic Coastal Plain between New Jersey and Florida is outlined, and 

the possibilities of the area as a potential source of petroleum are 

discussed.

2. Is the basement complex involved in Appalachian folding? [abs.]: Internat. 

Geol. Cong., 18th, Great Britain, Rpt. pt. 5, p. 121, 1950; Volume of titles 

and abstracts, p. 29, 1948; Geophysics, v. 14, no. 3, p. 374, July 1949. 

Full article entitled "How deep-seated are Appalachian anticlines?" 

published in W. Va. Acad. Sci. Proc., v. 20, p. 103-105, Mar. 1949.

Strimple, Harrell LeRoy.

1. Emendation of Endelocrinus tumidus (Strimple) : Jour. Paleontology, v. 24, 

no. 1, p. 112-113, Jan. 1950. The description given by the author in 1939 

is emended and restricted. V. S.

2. New species of Utharoerinus and Lasanocrinus: Jour. Paleontology, v. 24, 

no. 5, p. 571-574, illus., Sept. 1950. "Several forms from the Missourian 

and Virgilian of Oklahoma and Kansas are described as Utharocrinus 

habitus, n. sp., U. spinosus, n. sp., U. fabtilosus, n. sp. and U. facilis, 

n. sp. One form from the Desmoinesian is described as Lasanocrinus 

altamontensis, n. sp."

Stringfield, Victor Timothy. See also Cooper, H. H., Jr.; Parker, G. G.

Ground-water geology in the southeastern states, in Snyder, F. G., ed., Symposium on mineral resources of the southeastern United States, p. 

211-222, illus., 1950. The general characteristics of the four groundwater provinces in the southeastern United States South-Central 

Paleozoic, Blue Ridge-Appalachian Valley, Piedmont, and Coastal Plain, 

are described. General data on ground-water investigations and consumption in the area are included:
252 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, I960

Stringham, Bronson Ferrin.

1. [Discussion of alteration and its application to ore search], in Applied 

geology, a symposium: Colo. School of Mines Quart., v. 45, no. IB, 

p. 2SO-2S1, 342, Jan. 1950.

2. Mordenite from Tintic, Utah, and the discredited mineral arduinite: Am. 

Mineralogist, v. 35, nos. 7-8, p. 601-604, July-Aug. 1950. Optical, chemical, and X-ray data are given for mordenite occurring in quartz latite 

in the Tintic mining district, Utah. The specimen was originally identified as arduinite, but subsequent study has proved arduinite to be 

identical with mordenite and therefore discredited.

3. (and Sharp, Byron J.). The Fox Clay deposit, Utah : Am. Jour. Sci., v. 248, 

no. 10, p. 726-733, illus. incl. geol. map, Oct. 1950. Differential thermal 

analysis indicates that samples from the Fox Clay deposit, Lake Mountains area, Utah, contain more water than typical halloysite 2H2O, 

although X-ray powder pictures compare favorably with those of authentic halloysite. It is concluded that the Fox Clay haloysite "contains 

adsorbed water which so affects all properties other than X-ray as to 

make it appear to be endellite 4H2O." V. S.

4. (and Taylor, Alien O.). Nontronite at Bingham, Utah: Am. Mineralogist, 

v. 35, nos. 11-12, p. 1060-1066, illus., Nov.-Dec. 1950; abs., nos. 3-4, p. 289, 

Mar.-Apr. 1950; Geol. Soc. Am. Bull., v. 60, no. 12, pt. 2, p. 1923, Dec.

1949. Chemical, optical, and differential thermal analysis data are given 

for nontronite Which occurs as a weathering product of diopside, 

tremolite, and pyrophyllite at the Kennecott Copper mine, Bingham, 

Utah. The chemical formula is calculated, and the origin of the 

nontronite is discussed.

Stromquist, Arvid A. See Wiese, J. H.. 1.

Stubblefield, Cyril James. See Shaw, A. B., 3.

Stuckey, Jasper Leonidas.

1. Talc, soapstone, and pyrophyllite in the southeastern United States, in 

Snyder, F. G., ed., Symposium on mineral resources of the southeastern 

United States, p. 112-119, 1950. Reviews briefly the occurrence, distribution and origin of the talc, soapstone, and pyrophyllite deposits in

Maryland, Virginia, North Carolina, South Carolina, Georgia, and 

Alabama.

2. (and White, William Alexander). [Memorial to] William Frederick Prouty 

[1879-1949]: N. C. Acad. Sci. Proc. in Elisha Mitchell Sci. Soc. Jour., 

V. 66, no. 2, p. 106-108, Dec. 1950.

Stumm, Erwin Charles. See also Ehlers, G. M., 2.

1. (and others). Tabulata [Unit 1-E, pt. C], in Type invertebrate fossils 

of North America (Devonian): Wagner Free Inst. Sci., Cards 261-405,

1950.

2. New name for Favosites proximo Davis : .Tour. Paleontology, V. 24, no. 3, 

p. 395, May 1950. Favosites proximus Davis, a homonym of F. proximii3 Hall, is renamed F. proximatus. V. S.

3. Corals of the Devonian Traverse group of Michigan. Part III, AnthoWes, 

Plettrodictyum, and Procteria: Mich. Univ. Mus. Paleontology Contr., 

v. 8, no. 8, p. 205-220, illns., Aug. 11, 1950. Systematic descriptions of 

Seven species, two of which are new.

4. Occurrence of North American species of the European and Australian

tetracoral genus Tryplas-ma [abs.] : Geol. Soo. Am. Bull, v 61 no 12

pt. 2, p. 1507, Dec. 1950.

Stupka, Arthur. See King, F. B., i, 2.

Sturgeon, Myron Thomas.

FoSSllS, USeful tOOlS Of geologists and benefits to society : Ohio State Univ., Eng.

Expt. Sta. News, v. 22, no. 2, p. 11, 29-32, Apr. 1950. Outlines briefly 

the usefulness of fossils in geologic mapping, structure interpretation,

location of oil wells, discovery of mineral deposits, and in the development of the geologic and biologic sciences.
BIBLIOGRAPHY 253

Suarez C., Rodolfo.

Estratigrafia y estructura del campo de Moralillo: Asoc. Mex. Ge61. Petrol. 

Bol., v. 2, no. 11, p. 647-677, illus., Nov. 1950. The Moralillo oil field is 

located in the northern part of Veracrnz, Mexico, about 70 miles south 

of Tampico. The Cretaceous, Eocene, and Oligocene formations are 

described in detail. Brief sections on structure and producing zones are 

included.

Suess, Hans.

Gas content and age of tektites [abs.]: Geol. Soc. Arn. Bull., v. 61, no. 12, pt. 

2, p. 1507, Dec. 1950.

Sulkowski, Eugene L.

. The University of Pittsburgh pen-and-ink recording seismograph: Seismol. 

Soc. Am. Bull., v. 40, no. 3, p. 165-168, illus., July 1950. The highmagnification seismograph, developed at the University of Pittsburgh, 

Pennsylvania, translates the output of a multiplier phototube by means 

of ,a photo-electric recorder into a pen-and-ink tracing, differing little 

from a photographic tracing. The apparatus is described, and a sample 

of the record obtained is shown. ' V. S.

Sullivan, Barbara. See McMurdie, H. F. 

Sullivan, Geraldine R. See Whitehead, W. L., 2.

Summerford, H. Edgar.

(and Schieck, Emmett E., and Hiestand, Thomas Cleon). Oil and gas accumulation controlled by sedimentary facies in Upper Cretaceous Newcastle 

sandstone, Wyoming: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 9, p. 1850- 

1865, illus., Sept. 1950. In the Upper Cretaceous Newcastle sandstone 

of northeastern Wyoming, studied in the Mush Creek and Skull Creek 

areas, Weston County, oil and gas accumulation was found controlled 

by alternating facies changes from shale to sandstone, rather than by 

the local monoclinal dip. The five sand beds distinguished are described, 

indicated on lithofacies maps, and attributed to a near-shore depositional 

environment. V. S.

Sundling, H. L. See Lowdermilk, W. C.

Sundstrom, Raymond W.

(and Follett, Clarence R). Ground-water resources of Atascosa County, 

Texas: U. S. Geol. Survey Water-Supply Paper 1079-C, p. 107-153, illus., 

1950. Atascosa County, Texas, is underlain by Tertiary water-bearing 

sands, of which the chief producing formation is the Carrizo sand. The 

ground-water resources are described and illustrated by well logs and 

water analyses. V. S.

Suter, Hans H.

Mining geology and the, engineering aspects of mineral exploration: Econ. 

Geology, v. 45, no" 3, p. 257-258, May 1950. Discussion of J. D. Forrester's article (v. 44, p. 545-550, 1949) regarding the appellations suitable for work involving geology, engineering, and exploration.

Suter, Max. See Buswell, A. M.

Suter, Russell.

(and others). Mapping of geologic formations and aquifers of Long Island, 

New York: N. Y. Water Power and Control Comm. Bull. GW-18, 212 p., 

illus., 1949. Presents factual data on the strata and their correlation, 

the geologic history, and topography in relation to the strata, which will 

serve as a basis for ground-water studies of Long Island. Various 

sections of the report are contributed by Wallace de Laguna, N. M. 

Perlmutter, and M. L. Brashears, Jr. (which see).

980682° 52 17
254 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Swain, James Fulton, 1903-1948.

Geology and occurrence of oil in Medina sand of Blue Rock-Salt Creek pool, 

Ohio: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 9, p. 1874-1886, illus., 

Sept. 1950. Describes the stratigraphy and structure of the Silurian 

Medina sand in the area of the Blue Rock-Salt Creek oil and gas pool, 

Muskingum County, Ohio. The evidence indicates that the local reservoir 

and oil accumulation are of sedimentary rather than structural origin. 

Formative processes in a small bayhead deltaic environment are 

suggested. V. S.

Swann, David Henry. See also Quinn, A. W., 1; Workman, L. E., 2. 

Primary sedimentary structures of the Aux Vases sandstone [abs.] : Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1507-1508. Dec. 1950.

Swanson, Clarence Otto.

The Sullivan mine, Kimberley, B. C., in Dunham, K. C., ed., Symposium on ... 

lead and zinc: Internat. Geol. Cong., 18th, Great Britain, Rpt. pt. 7, p. 

40-46, illus., 1950; abs., Volume of titles and abstracts, p. 51, 1948. The 

Sullivan ore body is a sulfide replacement of argillaceous and silty beds 

in the pre-Cambrian Aldridge formation in southeastern British Columbia. The ore minerals are galena and sphalerite. Folding and 

faulting are present and wall-rock alteration is extensive.

Swartz, Frank McKim,

Subsurface projection of Cambro-Ordovician sediments in the PennsylvaniaNew York region and-relation to oil and gas possibilities: Pa. Geol. 

Survey, 4th ser., Bull. G25,18 p., illus., 1950. Reprinted from Producers 

Monthly, v. 13, no. 11, p. 25-32, illus., Sept. 1949; no. 12, p. 28-31, illus., 

Oct. 1949; v. 14, no. 1, p. 25-31, illus., Nov. 1949; no. 2, p. 34-39, illus., 

Dec. 1949.

Swenson, Herbert A. See Littleton, R. T., 2; Tychsen, P. C.

Swesnik, Robert Malcolm. See also Wheeler, R. R., 2.

1. Golden Trend of south-central Oklahoma: Am. Assoc. Petrol. Geol. Bull., v. 

34, no. 3, p. 386-422, illus., Mar. 1950. The Golden Trend petroliferous 

area in the southeastern embayment of the Anadarko basin is described 

as to development, stratigraphy, structures, Ordovician-Permian history, 

and three major type-pools. Production is mainly from structural 

Ordovician, and stratigraphic Pennsylvanian traps. Geologic sketch 

maps and sections are given. V. S.

2. (and Green, Thomas Henning). Geology. of Eola area, Garvin County, 

Oklahoma: Am. Assoc. Petrol. Geol. BulL, v. 34, no. 11, p. 2176-2199,

illus., Nov. 1950; abs. with title Eola, Oklahoma, typical Arbuckle

Mountain structure, no. 3, p. 625 626, Mar. 195O. The structurally

complex area of the Eola oil field, north of the Arbuckie Mts., Oklahoma, 

is characterized mainly by a thrust fault with a stratigraphic displaceincut measurable in miles. North of the fault highly folded and faulted

pre-Deese strata form an overturned syncline. Oil is produced from the 

Bromide sand of Ordovician age. The stratigraphy and structure are

discussed and illustrated by maps and sections. V. S.

3. Geology of Lindsay area, Garvin and McClain Counties, Oklahoma [abs.] :

Am. Assoc. Petrol. Geol. Bull, v. 34, no. 3, p. 619, Mar. 1950. 

Swindel, G, W,, Jr, See LaMoreaux, p, E., 2,

Swineford, Ada. See also Bates, T. F., 2.

(and Frye, John Chapman), Petrography of the Peoria loess in Kansas [abs.]:

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1508, Dec. 1950. 

Swinney, C. Melvin. See also Wiese, J. H., 1.

The Altoona quicksilver mine, Trinity County, California: Calif. Jour. Mines

and Geology, v. 46, no. 3, p. 395-404, illus., July 1950. The ore bodies 

at the Altoona mercury deposit, Trinity County, California, are steeply 

dipping tabular lenses along faults that cut altered diorite. The ore is 

cinnabar, and averages 18 pounds of mercury per ton. General geology 

and ore bodies are described and illustrated by mine-level sections. V. S.
BIBLIOGRAPHY 255

Switzer, George.

(and Brannock, Walter Wallace). Composition of veatchite: Am. Mineralogist, 

v. 35, nos. 1-2, p. 90-92, Jan.-Feb. 1950. Veatchite is not a hydrous 

calcium borate, as described in 1938, but a strontium borate, probably 

3SrO.8B2O3.5H2O. Chemical analyses and unit cell data are given. V. S.

Taber, Stephen.

1. Quartz crystals with clay and fluid inclusions: Jour. Geology, v. 58, no. 1, 

p. 37-48, illus., Jan. 1950. Describes the form, orientation, and origin 

of quartz crystals with fluid and clay inclusions, found in the Piedmont 

region of North Carolina. V. S.

2. Intensive frost action along lake shores: Am. Jour. Sci., v. 248, no. 11, p. 

784-793, illus., Nov. 1950. Beach gravels of the Finger Lakes, central 

New York, are chiefly limestone derived from boulder clay. The gravel 

is angular because rupture by frost action proceeds faster than rounding 

by waves. The process of frost action in coarse- and flne-textured rocks, 

supplemented by experimental evidence, is discussed.

Tait, D. B. See Osborn, E. F., 2. 

Takasaki, K. J. See Garrison, L. E.

Tanner, William F.

1. Location of the syncline in island arc structure: Science, v. Ill, no. 2879, 

p. 232, Mar. 3, 1950. The apparent non-existence of foredeep sediments 

as deep-sea deposits in synclines, and the derivation of synclinal sediments from land masses located seaward are viewed as evidence for 

considering the shallow island-arc becken, rather than the foredeep, as 

the origin and location of the geosyncline. V. S.

2. (and Mallams, Paula). Sorting of Canadian River, Oklahoma, sands: 

Jour. Sed. Petrology, v. 20, no. 4, p. 224-225, illus., Dec. 1950. Histograms 

of sand samples taken from a bar in the North Canadian River and 

from the floodplain of the South Canadian River indicate that sorting 

is similar to that found in dune, beach, and marine offshore sands.

Tanton, Thomas Leslie.

1. (and Harrison, James Merritt). The Flin Flon and Sherritt Gordon mines, 

in Dunham, K. C., ed., Symposium on ... lead and zinc: Internat. 

Geol. Gong., 18th, £reat Britain, Rpt. pt. 7, p. 47-50, illus., 1950; abs., 

Volume of titles and abstracts, p. 51, 1948. The Flin Flon ore bodies, 

on the Manitoba-Saskatchewan boundary, consist of sulfide replacement 

lenses in drag folds associated with a pitching anticline. The ore 

minerals are chalcopyrite and sphalerite. The Sherritt Gordon ore 

bodies, in northern Manitoba, are replacements associated with a pegmatite intrusion, into pre-Cambrian gneiss. The ore minerals are 

chalcopyrite, pyrite, sphalerite, and pyrrhotite carrying gold and silver 

values.

2. The origin of iron range rocks: Royal Soc. Canada Trans., 3d ser., v. 44, 

sec. 4, p. 1-19, illus., June 1950. Presidential address, in which the 

various interpretations of the origin of the siliceous iron-bearing rocks 

typical of the Lake Superior district are discussed. The conclusion is 

drawn that iron range rocks are not of surflcial or sedimentary origin, 

but are products of differentiation, by liquation in ore-forming magma. 

The iron ore deposits are due to the escape of volatile end products that 

leached out the silica and left a residual concentration of iijon oxides.

3. Origin of iron rocks: Canadian Min. Jour., v. 71, no. 8, p. 43^45, illus., Aug. 

1950. A summary of a paper presented at the Royal Society of Canada 

meeting, June 6, 1950, on the "Origin of Iron Range rocks." The conclusion is reached that "Iron Range rocks are not of surflcial or sedimentary origin. They meet the host rocks in which they occur as 

irruptive bodies or primary replacement deposits . . . [and are] products of differentiation by liquation in ore-forming magma." V. S.

Tappan, Helen Nina. See Applin, E. E. R., 1; Loeblich, A. R., Jr., 1, 2, 3.

Tarbet, Loyal Alexander.

Imperial Valley [Calif.] in Symposium on possible future oil provinces of the 

Pacific Coast region [abs.]: Am; Assoc. Petrol. Geol. Bull., v. 34, no. 12, 

 p. 2385, Dec. 1950. '
256

Tasch, Paul.

Fauna and paleoecology of the Upper Cambrian Warrior formation of central 

Pennsylvania [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1508- 

1509, Dec. 1950.

Tatel, Howard Edwin. See Tuve, M. A., 2.

Tato^ Benjamin A. See also Hussey, K. M., 2.

1. Photogrammetry and photo interpretation in geology curricula: Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 12, p. 2351-2356, Dec. 1950. Discusses the 

application of photogrammetric techniques to the geologic interpretation 

of aerial photographs and the need to include these techniques in 

geologic training. V. S.

2. Piedmont interstream surfaces of the Colorado Springs region [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1509, Dec. 1950.

Taylor, Alien 0. See Stringham, B. F., 4. 

Taylor, Dorothy Ann. See Berryhill, H. L., Jr. 

Taylor, Garvin Lawrence. See Reno, D. H.

Taylor, George Carroll, Jr.

(and Lernoine, Remy C.). Ground-water geology of the Gonaives plain, Haiti: 

Econ. Geology, v. 45, no. 2, p. 127-141, geol. sketch map, Mar .-Apr. 1950; 

Rev. Soc. Hai'tienne Hist. Geol., v. 20, no. 75, p. 8-33, geol. map, Oct. 

1949 (French). The stratigraphy, structure, and water-bearing properties of the local Cretaceous to Recent rocks are described. The Recent 

alluvium is considered to contain sufficient ground water for irrigation.

V. S. 

Taylor, Jane M.

Pore-space reduction in sandstones: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 4, 

p. 701-716, illus., Apr. 1950. Thin-section study of Cretaceous to 

Jurassic sandstones from Wyoming shows that pore-space reduction of 

three types occur: pore filling, solid flow, and solution and redeposition 

or removal of dissolved material. Sand-grain contacts are classified 

and discussed. The study may lead to predictions of porosity changes 

with depth useful in oil exploration. V. S.

Taylor, Surce John,

(and McCarver, Holltxnd C.). The Vealmoor field, Howard and Borden Connties, Texas a Pennsylvanian reef [abs.] : Geophysics, v. 15, no. 1, p. 154,

Jan. 1950.

Teague, Kefton Harding.

Sillimanite in the Southeast: Min. Eng., v. 187, no. 7, p. 785-789, illus., July 

1950; A. I. M. E. Trans., v. 187, 1950. Describes the geology, mineral 

composition, origin, and reserves of several recently discovered deposits 

of sillimanite-bearing schists in North Carolina, South Carolina, and 

Georgia.

Teichert, Curt.

Zone concept in stratigraphy: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 7, 

p. 1585-1588, July 1950. Past definitions and uses of the term "zone" 

a$e reviewed, and conclusions determining the concept are drawn, characterizing zone as a time-stratigraphic unit, preferably a subdivision 

of a stage (but not a sub-stage), recognizable by a distinct fossil 

assemblage. V. S.

Telkes, Maria.

Thermoelectric power and electrical resistivity of minerals: Am. Mineralogist 

V. 35, DOS. 7-8, p. 536-555, illus., July-Ang. 1950. The thermoelectric 

power and electrical resistivity of a large group of minerals were determined and the data are tabulated. They indicate that a definite order 

of magnitude values can be established.
BIBLIOGRAPHY 257

Tellez-Giron, Clemencia.

Ostracodos f6siles de Mexico: Asoc. Mex. Ge61. Petrol. Bol., v. 2, no. 6, p. 

407-412, June 1950. Lists the genera and species of ostracodes that 

have been found in Mexico. The Cypridae, Cytherellidae, and Cytheridae are represented. Fourteen species have been identified.

Tellington, Wentworth J.

Seismic work problems in the Canadian bush country: Oil and Gas Jour., 

v. 48, no. 51, p. 114,116-117, illus., Apr. 27,1950.

Templeton, Justus Stevens, Jr.

The Mt. Simon sandstone in northern Illinois: 111. State Acad. Sci. Trans., 

v. 43, p.. 151-159, illus., 1950; 111. State Geol. Survey Circ. 170, 1951. 

The stratigraphic relations of the Upper Cambrian Mt. Simon sandstone, 

encountered in wells in northern Illinois, are discussed. It is suggested 

that the Mt. Simon sandstone in Illinois is the equivalent of the Bayfield 

sandstone of Wisconsin and of the Hinckley and Fond du Lac formations 

in Minnesota. -Seven subdivisions of the Mt. Simon are proposed .as 

members Crane, Kenyon, Lovell, Mayfield, Lacey, Gunn, and Charter.

Tennessee Valley Authority.

Geology and foundation treatment, Tennessee Valley Authority projects: 

Tennessee Valley Authority, Tech. Rpt. 22, 548 p., illus., 1949. The 

general geologic conditions at each of the 8 main river projects and the 

11 tributary river projects are described.

Terry, J. M. See also McGaha, S. W., 2.

Radioactivity logging: Petroleo Interamericano, v. 8, no. 6, p. 43-44, 47, 64, 

illus., June 1950. (Spanish and English). Discusses the principles, 

characteristics, and applications of combined radioactivity and neutron 

logs for obtaining stratigraphic information of bore holes, comparing 

their curves with electric logs. V. S.

Terzaghi, Karl.

1. Geologic aspects of soft-ground tunneling, in Applied sedimentation, p. 

193-209, illus., 1950. The points discussed include classification of soft 

grounds, treatment of soft ground conditions, methods of tunneling, test 

boring, water-table position, and the functions of the geologist in earthtunnel investigations.

2. Mechanism of landslides, in Application of geology to engineering practice, 

Berkey Volume, p. 83-123, illus., Geol. Soc. Am., New York, 1950. The 

points covered in the discussion include varieties of slope movements, 

processes leading to landslides, dynamics of landslides, and preventive 

and corrective measures.

Thalmann, Hans Ernst.

Bibliography and index to new genera, species, and'varieties of Foraminifera 

for the year 1949: Jour. Paleontology, v. 24, no. 6, p. 699-745, Nov. 1950. 

Lists 350 papers for 1949, and 131 for previous years. The index lists as 

new during 1949: 2 subfamilies, 28 genera, 4 subgenera, 625 species, and 

77 varieties. Supplemental to the lists of previous years, 5 genera, 63 

species, and 7 varieties are listed.

Thayer, Thomas Prence. 

(and Hay, Richard L.). Preliminary notes on later Miocene volcanisrn in the 

John Day region, Oregon : Northwest Sci., y. 24, no. 2, p. 89-90, May 1950. 

Details of several stratigraphic sections of the Columbia River lavas 

and the Mascall formation and their equivalents in the John Day River 

Valley are given.

Thiel, George Alfred. See Lacabanne, W. D. 

Thiesmeyer, Lincoln Reuber. See Mather, K. F., 1.
Thoenen, John Roy.

.(and others). Investigation of the Prairie Creek diamond area, Pike County, 

Ark.: Earth Sci. Digest, v. 4, no. 6, p. 3-8, illus. incl. geol. sketch map, 

Jan. 1950. Describes the local geology, the occurrence of the diamonds, 

and the results of sampling by the Bureau of Mines.

Thorn, Emma Mertins.

(and Hooker, Marjorie, and Dunaven, Ruth Reece). Bibliography of North 

American geology, 1948: U. S. Geol. Survey Bull. 968, 309 p., 1950, Arranged alphabetically by author, with a subject index. .

Thomas, Blakemore E.

Geology of the Wallapai district, Arizona [abs.]: Geol. Soc. Am. Bull., v. 

61, no. 12, pt. 2, p. 1509-1510, Dec. 1950.

Thomas, Emil Paul.

Mississippi structures and their relation to oil accumulation : Am. Assoc. Petrol. 

Geol. Bull., v. 34, no. 7, p. 1502-1516, illus., July 1950. "All of the 

known fields are found either in structural or combination structural 

and stratigraphic traps. The producing structures may be divided conveniently into four groups: (1) igneous intrusions, (2) piercement salt 

domes, (3) deep-seated salt domes, and (4) normal faults and grabens. 

A discussion of the general features, distribution, petroleum production, 

origin, and geologic history of each group is given."

Thomas, Horace Davis.

Summary of the Paleozoic stratigraphy of the Green River Basin, Wyoming: 

Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, p. 17-24, illus., 1950. 

Cambrian, Ordovician, Silurian, Devonian, Mississippian, Pennsylvanian, 

and Permian strata in the Bear Lake area of Idaho-Utah, on the western 

side of the Green River Basin, in the Wind River Mts., and at other 

points in southwest Wyoming, are described. A generalized correlation 

table and sketch map of Paleozoic rock outcrops are included.

Thomas, Leo Almor.

1. Pennsylvanian Charophyta in Iowa : Iowa Acad. Sci. Proc., v. 56, p. 233, 1949. 

Reports the occurrence of oogina in the Higginsville limestone member 

of the Ft. Scott formation of Pennsylvanian age near Madrid, Iowa.

2. (and Balster, 0. A.). Micropaleontological zones in Iowa: Iowa Acad. Sci.

Proc., v. 56, p. 235 240, 1949. Micropaleontological information is compiled in an attempt to establish preliminary faunal zones. Tables of

formations and zone index genera and species for the Ordovician, Upper

Devonian, and Pennsylvanian are given. A bibliography is included.

3. Sweetland Creek (Devonian) conodonts: .Tour. Paleontology, v. 24, no. 4, 

p. 497-498, July 1950. A list of conodont genera and species from the 

lower part of the Sweetland Creek shale of Iowa. The genus Icriodus, 

which is very rare in the upper shale, is abundant in the lower beds.

Thomas, Robert H.

Phase equilibrium in a portion of the ternary system BaO-Al2O3-SiO3 : Am. 

Ceramic Soc. Jour., v. 33, no. 2, p. 35-44, illus., Feb. 1,1950. "The crystal

phases that separate from melts -within the area investigated are barium

orthosilicate, barium metasilicate, solid solutions, sanbornite, tridymite

and cristobalite, mullite, and celsian." 

Thomas, Robert P.

(and Byerly, Perry), g waves as diagnostic of fault motion [abs.]: Geol. Soc.

Am. Bull., v. 61, no. 12, pt. 2, p. 1547, Dec. 195O. 

Thompson, James B., Jr. See Hurley, P. M., 3.

Thompson, LG.D, #eeMisener,A,D,
BIBLIOGRAPHY 259

Thompson, Marcus Luther.

(and Verville, George Julius, and Bissell, Harold Joseph). Pennsylvania!! 

fusulinids of the south-central Wasatch Mountains, Utah: Jour. Paleontology, v. 24, no. 4, p. 430-465, illus., July 1950. On the basis of the fusulinids, the Oquirrh formation is divided into three parts: the Desmoinesian stage of the Oklan series, and the Missourian and Virgilian stages of 

the Kawvian series. Several species of Fusulina, Wedekindellina, Triticites, and Waeringella are described and illustrated. No fusulinids of 

Morrowan, Atokan, late Desmoinesian, or late Virgilian ages have been 

identified.

Thompson, Raymond Melvin.

(and others). Geology of the Lander area, central Wyoming: U. S. Geol. 

Survey Oil and Gas Inv. Map OM 112 (2 sheets). 1950. Sheet 1 shows 

index maps, cross sections, and a coldred geologic map on a scale of 

1 inch to 1 mile. Sheet 2 has a detailed, composite columnar section and 

a text which covers the stratigraphy, structure, oil and gas possibilities, 

and construction material resources.

Thompson, Robert Mitchell.

1. Mineral occurrences in western Canada: Am. Mineralogist, v. 35, nog. 5-6, 

p. 451-455, May-June 1950. Brief notes on specimens of bismuth, bismuthinite, boulangerite, bournonite, galenobismutite, hessite, jamesonite, 

Joseite, linnaeite, owyheeite, polybasite, skutterudite, stannite, tellurbismuth, tetradymite, wehrlite, wittichenite, and wurtzite, from various 

localities in Yukon Territory, British Columbia, and Northwest Territories.

2. The probable non-existence of alaskaite: Am. Mineralogist, v. 35, nos. 5-6, 

p. 456-457, May-June 1950. Study of five specimens of alaskaite, three 

from the type locality in Colorado, indicates that the species should 

probably be discredited. The Colorado material is more likely an intergrowth of matildite and aikinite, and the Bolivian material is probably 

benjaminite.

Thompson, Thomas Francis.

Artesian horizon beneath McNary Dam, Oregon [abs.] : Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1510, Dec. 1950.

Thomson, James Edgar. See also Charlewood, G. H.; Griffin, K.; Macintosh,

C. G.; Ogryzlo, S. P.; Perry, 0. S.; Ward, W.

1. Geology of Teck Township and the Kenogami Lake area, Kirkland Lake 

gold belt: Ontario Dept. Mines Ann. Rpt., 1948, v. 57, pt. 5, p. 1-53, illus. 

incl. geol. maps, 1950. Describes the pre-Cambrian intrusives, sediments, 

and volcanics and the folded and faulted structures of Teck Township 

and the Kenogami Lake area, comprising the western section of the 

Kirkland Lake gold belt in northern Ontario. The various gold mines 

and properties are also described. Two colored geologic maps of the 

area, on a scale of 1 inch to 1000 feet, and one generalized map of the 

gold belt are included.

 2. Geology of the main ore zone at Kirkland Lake; Introduction and general 

description: Ontario Dept. Mines Ann. Rpt., 1948, v. 57, pt. 5, p. 55-103, 

illus., 1950. The rock formations, structures, and mineralization of the 

Kirkland Lake ore zone in northern Ontario are described. The zone 

is about 3 miles long, l1^ miles wide, and reaches a depth of more than 

1% miles. Numerous underground plans and sections supplement the 

text. Ore genesis and its relation to the faulting are discussed. A brief 

note on geothermal gradients in the area is included.

3. Preliminary report on copper, nickel, lead, and zinc deposits of Ontario: 

Ontario Dept. Mines Prelim. Rpt. 1950-4, 19 p., Mar. 1950. An inventory 

of the main copper, nickel, lead, and zinc deposits of Ontario giving location, development, mineralization, productivity, reserves, and references.

V. S.

4. Non-ferrous base metal deposits in Ontario: Canadian Min. Jour., v. 71, no. 

11, p. 152-154, Nov. 1950. Brief notes on the occurrence of copper, lead, 

zinc, cobalt, uranium, and several other minor metals in Ontario.
260 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Thorington, J. Monroe.

Rollin Thomas Chamberlin, 1881-1948: Am. Alpine Jour., v. 7, no. 2, p. 205-206, 

port., Jan. 1949.

Thornbury, William David.

1. Glacial sluiceways and lacustrine plains of southern Indiana: Ind. Dept. 

Oonserv., Div. Geology Bull. 4, 21 p., illus., June 1950. The extent and 

causes of the Pleistocene valley filling, characteristic of southern Indiana, 

are discussed. The glacial lakes of the Illinoisian and Wisconsin glacial 

stages are mapped.

2. (and Wayne, William J.). Late Cenozoic history of the Wabash area, Indiana [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1510, Dec. 1950.

Thornton, F. M. See Berry, L. G., 2.

Thorp, James.

1. (and Reed, Eugene Clifton). Is there laterite in rocks of the Dakota 

group?: Science, v. 109, no. 2821, p. 69, Jan. 21, 1949. It is tentatively 

concluded that the Dakota group of strata, in Nebraska and Kansas, 

includes more than one horizon of lateritic material that represents a 

former sub-soil horizon of an ancient soil. The Dakota group is

Cretaceous in age.

2. Progress on the use of soil profiles as an aid to estimating recent geologic 

time [abs.] : Nebr. Acad. Sci. Proc., 60th Ann. Mtg., p. 1.6, May 1950.

3. Distribution of wind-deposited soil materials in the United States [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12 pt. 2, p. 1573-1574, Dec. 1950. Progress 

report of the National Research Council Committee on the study of 

eolian deposits of United States, Alaska, and Canada.

Thurlow, Ernest E.

(and Wright, Robert James). Uraninite in the Coeur d'Alene district, Idaho: 

Econ. Geology, v. 45, no. 5, p. 395-^404, illus., Aug. 1950. Discussion by 

Raymond F. Robinson, no. 8, p. 818-819, Dec. 1950. Exploration on the 

basis of favorable geologic conditions showed trace amounts of uraninite 

in the Sunshine and Coeur d'Alene mines, Idaho. The uranium-bearing 

veins occur chiefly in the quartzite wall rock of the ore bodies. The 

mineralogy is described, and similarities with other uranium deposits

are noted.

Ting, Chuen Pu. See Keller, W. D., 5.

Tiphane, Marcel.

Preliminary report on the Mazarin area, Abitibi-East County: Quebec Dept.

Mines, Geol. Surveys Br., Prelim. Rpt. 236, 6 p. ($), geol. map, 195O.

Brief notes on the pre-Cambrian rocks and structure of the Mazarin area 

in northern Quebec.

Tocher, Don.

1. (and Romney, Carl F.). Earthquakes and the registration of earthquakes, 

Berkeley Mount Hamilton Palo Alto San Francisco Ferndale 

Fresno Mineral Arcata Reno, from July 1, 1949 to September 30, 

1949; Calif. Univ. Seismog. Sta. Bull., v. 19, no. 3, p. 153-283 (t), 1950.

2. Earthquakes and the registration of earthquakes, Berkeley Mount Hamilton Palo Alto San Francisco Ferndale Fresno Mineral Arcata 

Reno. from October 1, 1949, to December 31, 1949: Calif. Univ. Seismog.

Sta. Bull., v. 19, no. 4, p. 284-4O4 ( t ) , 1951.

Todd, Margaret Ruth.

Joseph Augustine Cushman [1881-1949] : Cushman Laboratory for Foraminiferal Research, Memorial Volume, p. 5-16, portraits, Apr. 1950.

Toenges, Albert Louis. See r>owd, J. J., 1, 2.
BIBLIOGRAPHY 261

Tolstoy, Ivan. See also Ewing, W. M., 1; Press, Frank.

(and Ewing, William Maurice). The T phase of shallow-focus earthquakes: 

Seismol. Soc. Am. Bull., v. 40, no. 1, p. 25-51, illus., Jan. 1950; abs., 

Geol. Soc. Am. Bull., v. 60, no. 12, pt. 2, p. 1957, Dec. 1949. The shortperiod T phase, previously predicted theoretically by several workers and 

observed by D. Linehan, is reported identified on many seismograms of 

submarine earthquakes. Its propagation is discussed, and practical 

applications are suggested. V. S.

Tomkins, R. V. .

Natural sodium sulphate in Saskatchewan: Saskatchewan Dept. Nat. Res. 

Indus. Dev., Tech. Econ. Ser., Rpt. no. 1, 99 p., illus., 1948. Eleven 

major occurrences of sodium sulfate are described and chemical analyses 

given; seventeen minor occurrences are described, for some of which 

analyses are given. Total reserves are more than 60,000,000 tons of 

anhydrous sodium sulfate.

Tomlinson, Charles Weldon.

1. Pennsylvanian -paleogeography of southern Oklahoma: Tulsa Geol. Soc. 

Digest, v. 18, p. 68-71,1950. A brief summary of sedimentation, erosion, 

and orogeny during Pennsylvanian time. .

2. Freedom and petroleum geology: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 7, 

p. 1379-1383, July 1950; Oil and Gas Jour., v. 48, no. 51, p. 109, 112-113, 

Apr. 27, 1950. Presidential address, American Association of Petroleum 

Geologists meeting at Chicago, April 1950.

Tomlinson, W. Harold.

Assimilation (?) of micaceous schist by diabase [abs.]: Am. Mineralogist, 

v. 35, nos. 3-4, p. 290, Mar.-Apr. 1950.

Tompkins, Joseph D.

Winters and Jimburt pools, Runnels County, Texas: Abilene Geol. Soc., Geol. 

Contr., p. 90-91, illus., 1950. Brief notes on the reef structure of the 

area.

Toron Villegas, Luis.

1. (and Esteve Torres, Adrian). The program for the systematic study of 

raw material reserves in the Mexican iron and steel industry, being 

carried out by the Bank of Mexico's Office of Industrial Research. 

23 p., map. Oficina de Investigaciones Industriales del Banco de Mexico. 

Mexico City. 1948. The iron deposits have been grouped into five large 

units which are described and for which reserve and grade figures are 

given. Comments on the Mexican coal deposits are also included.

2. Las materias primas para la industria siderurgica: Soc. Mex. Geog. Est. 

Bol., v. 68, nos. 1-2, p. 45-62, July-Oct. 1949. Discusses the iron and 

coal resources of Mexico.

Torre, Clemencia de la.

Dos casos de impresion de las partes blandas en Ammonoideos de Vinales: 

Bol. Hist. Nat., v. 1, no. 4, p. 171-173, illus., Dec. 1950. Describes two 

examples of the impression of soft parts of ammonoids that have been 

preserved in Jurassic strata. The species are Perisphinctes cubanensis 

and Perisphinctes' plicatiloides and the locality is the Vinales Valley, 

Pinar del Rio, western Cuba.

Torre Mandrazo, Ricardo de la.

Geomorfologia del Canon del Colorado: Bol. Hist. Nat., v. 1, no. 2, p. 61-65, 

Sept. 1950. A discussion of the Grand Canyon of the Colorado River as 

an example of geologic processes.

Toulmin, Lyman Dorgan, Jr.

(and Rainwater, Edward Harriman). Volume of Cenozoic sediments in 

Georgia and Florida [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1511, Dec. 1950.
262 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

i 

Townsend, Roland C.

Deformation of Fort Union formation near Lignite, North Dakota: Am. Assoc. 

Petrol. Geol. Bull., v. 34, no. 7, p.' 1552-1564, illus., July 1950. The 

Paleocene Fort Union formation is intensely and complexly folded ^nd 

faulted near Lignite, North Dakota, as shown by exposures along the 

northeast slope of the Altamont (?) moraine. It is suggested that the 

deformation is the result of deep seated forces and that the Fort Union 

formation may be deformed over a wider area than is now known. V. S.

Trantina, John A.

Frost action on excavated slopes in Niobrara chalk, Fort Randall Dam, South 

Dakota [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1511, Dec. 

1950.

Trask, Parker Davies.

1. (editor). Applied sedimentation, a symposium. 707 p., illus. New York, 

John Wiley & Sons, Inc., 1950. The symposium consists of 35 papers 

by specialists covering various aspects of applied sedimentation. Among 

the subjects treated are engineering problems, landslides, permafrost, 

shore control, sedimentary mineral deposits, clays in the field of 

ceramics, geochemical prospecting, petroleum geology, and military 

geology.

2. Dynamics of sedimentation, in Applied sedimentation, p. 3-40, 1950. A 

discussion of the five fundamental processes of sedimentation weathering, erosion, transportation, deposition, and diagenesis, together with 

notes on classification and nomenclature and an extensive bibliography.

3. Geologic description of the manganese deposits of California: Calif. Dept. 

Nat. Res. Div. Mines Bull. 152 (Supplement to Bull. 125), 378 p., illus. 

incl. geol. maps, Apr. 1950. This volume contains a series of detailed 

descriptions and maps of several hundred individual manganese deposits 

arranged alphabetically by the 44 counties in which they occur. The 

descriptions are the work of the author together with excerpts from the 

work of 23 others, publications of the California Division of Mines, and 

files of the U. S. Geological Survey.

4. (and Rolston, Jack W.). Relation of strength of sediments to water content 

and grain size: Science, v. Ill, no. 2894, p. 666-667, June 16, 1950. 

Quaternary silt and clay samples from San Francisco Bay, California, 

were tested for uiiConfiued compression, water content, grain size, and 

other characteristics. Results showed that water content and grain

size measurements combined gave better indications of the strength

of sediments than water content alone. V. S.

5. Engineering geology of San Francisco Bay [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1531, Dec. 1950.

Trauger, Frederick D. .

Volcanic ash deposits of the Friant formation, Fresno and Madera Counties, 

California [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1531, Dec.

1950.

Treasher, Raymond Clarence.

(and Howard, W. K). Foundation problems at dams of the Merced County

stream group [Calif.] [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 

1531, Dec. 1950.

Trefethen, Joseph Muzzy.

Classification of sediments: Am. Jour, sci., v. 248, no. i, p. 50-02, mus., Jan. 

1950; reprinted as Maine Tech. Expt. Sta. Paper 59, Jan. 1950. The

merits of current grain-sixe scales tincl soil classifications are cliseussecl,

and new classifications for imconsolidated mixtures ana lor consolidated 

sediments, based on mechanical analysis, are proposed. V. S.
BIBLIOGRAPHY 263

Tremblay, Leo Paul.

1. Fieclmont map-area, Abitibi County, Quebec: Canada Geol. Survey Mem. 

253, 113 p., illus. incl. geol. map, 1950. The Fieclmont area in northern 

Quebec is characterized by pre-Cambrian volcanics, sediments, and intrusions. The lithology, origin, age, paragenesis, and alteration of the 

rocks are described in detail. Mineral occurrences comprise molybdenite, spodumene, and beryl, mainly in the Lacorne area, and gold; but only 

the molybdenite and spodumene are of economic value. V. S.

2. Northeast part of Giauque Lake map-area, Northwest Territories (report and 

map) : Canada Geol. Survey Paper 50-18, 37 p. (t), geol. map, 1950. Describes the stratigraphy, structure, and economic geology of the Giauque 

Lake area, north of Yellowknife. The rocks are pre-Cambrian sediments, volcanics, and intrusives that have been folded and faulted. 

Several gold mining properties are described; that of the Discovery 

Yellowknife Mines in detail.

Trimble, Donald E.

Joint-controlled channeling in the Columbia River basalt: Northwest Sci., v. 24, 

no. 2, p. 84-88, illus., May 1950. Evidence is presented indicating that 

the channel pattern observable in the Haas quadrangle in southeastern 

Washington is the result of control by regional joints.

Trites, Albert F., Jr. See Staatz, M. H.

Troelsen, Johannes C.

1. Geologiske unders0gelser i Peary Land 1948-49: Dansk Geol. F0ren. Meddelelser, Bind 11, Heft 4, p. 501, 1949. A brief note on the stratigraphy 

and structure of Peary Land, northern Greenland.

2. Contributions to the geology of Northwest Greenland, Bllesmere Island, and 

Axel Heiberg Island: Meddelelser om Gr0nland, Bd. 149, no. 7, 85 p., 

illus. incl. geol. map, 1950; Copenhague Univ. Mus. Min6r. G6ol., Commun. G6ol. no. 38, 1950. The stratigraphy, geologic history, structure, 

and tectonics of Northwest Greenland and Ellesmere Island, based on the 

Danish Thule-Ellesmere Land expedition, 1939-1941, are described. 

The strata range from pre-Cambrian through Cretaceous (or Cenozoic). 

The colored geologic map is on a scale of approximately 1 inch to 25 miles.

3. Geology, in A preliminary account of the Danish Pearyland expedition, 

1948-49: Arctic, v. 3, no. 1, p. 6-8, illus., Apr. 1950. Brief notes on the 

strata, intrusives, and recent volcanic activity at several localities in 

Pearyland, northern Greenland.

Troyer, M. L. See Thompson, Raymond M.

Truesdell, Page Ernest.

1. (and Varnes, David Joseph). Chart correlating various grain-size definitions of sedimentary materials. One sheet. U. S. Geological Survey, 

Washington, D. C. 1950.

2. Naval interest in photogeology: Photogrammetric Engineering, v. 16, no. 3, 

p. 431-433, June 1950. The interest of the U. S. Navy in the use of 

aerial photographs for the interpretation of landforms is outlined.

Tullis, Edward Langdon.

Investigation of the Missouri Valley manganese deposits in South Dakota:. 

Black Hills Engineer, v. 29, no. 2, p. 37-38, Nov. 1949. Brief information 

on the manganese deposits indicates that although the reserves are very 

large, they are not commercially usable under present or near-future 

economic conditions.

Tulsa Geological Society.

Guidebook, field trips for the 1950-51 season. 34 p,, illus. Tulsa, Okla. 

Tulsa Geol. Soc. [1950]. Road logs, sections, m.a.ps, and photographs 

for the four field trips scheduled by the Society to be held October 28, 

1950, December 9, 1950, April 7, 195.1, an_d. May 12., 1951,
264 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Tunell, George.

1. On the temperature-pressure-concentration diagram for binary systems in 

which the only crystalline phases are the pure components : Am. Mineralogist, v. 35, nos. 9-10, p. 941-947, illus., Sept.-Oct. 1950. "An isometric 

drawing of the three-dimensional temperature-pressure-concentration 

diagram for a hypothetical binary system in which there are critical 

end points and in which the only crystalline phases are the pure components is given and the significance of the fields is stated."

2. (and Murata, Kiguma Jack). The atomic arrangement and chemical composition of krennerite: Am. Mineralogist, v. 35, nos. 11-12, p. 959-984, 

illus., Nov.-Dec. 1950. The chemical composition, density, and crystal 

structure of krenuerite are described and discussed. The analysis was 

made by powder diffraction and Weissenberg photographs of crystals 

from Cripple Creek, Colorado.

Turk, Lon B.

1. Pennsylvanian sediments on the northerly flank of the Pauls Valley arch 

[Okla.] [abs.] : Tulsa Geol. Soc. Digest, v. 18, p. 71, 1950.

2. Significance and use of lap-out maps in prospecting for oil and gas [abs.] : 

Am. Assoc. Petrol. Geol. Bull, V. 34, DO. 3, p, 625, Mar. 1950.

Turnbull, Louis Allan. See Dowd, J. J., 1, 2.

Turnbull, William Jay.

(and Krinitzsky, Ellis Louis, and Johnson, S. J.). Sedimentary geology of the 

alluvial valley of the lower Mississippi River and its influence on foundation problems, in Applied sedimentation, p. 21.0-226, illus., 1950. The 

various types of sediments in the Mississippi Valley are described, and 

the numerous engineering problems, particularly of levee construction 

and excavation, resulting from the variation in the 'sediments, are discussed.

Turner, Francis John.

1. (and Ch'ih, Chi Shang). Note on survival of fabric characters in Yule 

marble after heating to 700° C.: Am. Jour. Sci., v. 248, no. 5, p. 347-352. 

illus., May 1950. A petrofabric analysis of marble from the Yule quarry, 

Colorado, which had expanded permanently after a first heating to700° C. 

and Subsequent cooling, showed no Significant change in grain size,

lattice orientation, and lamellae characteristics. (For comments see

Rosenholtz, J. L,., 1.) V. g.

2. Observations on twin laws commonly exhibited by plagioclase of metamorphic rocks [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1511.

Dec. 1950.

3. (and Griggs, David Tressell, ana crrm, oni snans). Fabric of -s^ie ^n^foio 

deformed experimentally at ordinary temperatures in absence of water

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1512, Dec. 1950.

4. Some questions Dealing on the gi-ixnito problem [nbs 1 Geol goc Am Bull

v. 61, no. 12, pt. 2, p. 1532, Dec. 1950.

Tuttle, Orville Frank. See also Bowen, N. L., 3, 5 ; Keith, M. L.

1. Preparation Of oriented thin sections: Jour. Geology, v. 58, no. 1, p. 73-74, 

illus., Jan. 1950. Describes a method of marking both the slice from 

which the section is to be made and the hand specimen with orientation 

arrows. . -y g

2. (and Bowen, Norman Levt). High-temperature aiMte and contiguous feldspars: Jour. Geology, v. 58, no. 5, p. 572-583, illus., Sept. 1950; fibs., 

Geol. SOC. Am. Bull., v. 60, no. 12, pt. 2, p. 1925, Dec. 1949; Am. Mineralogist, v. 35, nos. 3-4, p. 290, Mar-Apr. 1950 "Synthetic albite is found 

to have X-ray and optical properties different than those of the very pure 

natural albites from pegmatites, but these natural aibites can, by heating, 

be converted into a form identical with the synthetic product. The 

inversion temperature is believed to be in the neighborhood of 700° C."
BIBLIOGRAPHY 265

Tuve, Merle Anthony.

1. (and others). Progress report on studies of deep crustal layers by explosive 

shots: Union Geocl. et Geophys. Internal., Assoc. de Seismologie, Serie 

A, Trav. Sci., fasc. 17, p. 5-6, 1950; reprinted from Am. Geophys. Union 

Trans., v. 29, no. 6, p. 772, Dec. 1948. A report on the layering and 

wave velocities underlying the region around Washington, D. C. as 

investigated by refraction, vertical, and critical angle reflection of seismic 

waves from controlled detonations.

2. (and Tatel, Howard Edwin). Coherent seismic wave patterns [abs.]: 

Science, v. 112, no. 2912, p. 452-453, Oct. 20,1950.

Twenhofel, William Henry.

1. Principles of sedimentation. 2d ed. xii, 673 p., illus. New York, McGrawHill Book Co., Inc., 1950.

2. Coral and other organic reefs in geologic column: Am. Assoc. Petrol. Geol. 

. Bull., v. 34, no. 2, p. 182-202, illus., Feb. 1950. Reef definitions and 

characteristics of porosity, permeability, cementation, alteration, and 

dimensions are considered, and reefs in the geologic column from the 

Huronian to the Tertiary, inclusive, are described. It is found that 

reefs are present in every one of these systems and may be encountered 

in any extensive calcareous formation. A bibliography is appended.

V. S. 

Tweto, Ogden L.

The story of the mountains: U. S. Geol. Survey Topog. Map, Denver Mountain 

area. Scale 1 inch to 3 miles. 1950. A description of the geologic 

history, orogeny, and glaciation, with illustrations, is printed on the 

reverse side of the map.

Tychsen, Paul C.

Geology and ground-water hydrology of the Heart River irrigation project 

and the Dickinson area, North Dakota (with a section on the mineral 

quality of waters of the Heart River Project by Herbert A. Swenson) : 

U. S. Geol. Survey Circ. 34, 59 p. ($), illus. incl. geol. map, Jan. 1950. 

Ground water is found in the Quaternary alluvial deposits, forming the 

floor of the river valley, and to a lesser extent in the sandstones and 

shales of the Fort Union, Cannonball, and Lucllow formations of 

Paleocene age. V. S.

Tyler, Paul Mclntosh.

Economic importance of pegmatites : U. S. Bur. Mines, Inf. Circ. 7550, 57 p. (t), 

illus., Feb. 1950. The distribution, geology, mineralization, size, and 

internal structure of pegmatite deposits, and methods of exploration, 

mining, and milling are considered, with attention to economic aspects. 

A bibliography is given. V. S.

Tyler, Stanley Alien.

Sedimentary iron deposits, in Applied sedimentation, p. 506-523, 1950. The 

role of sedimentation in the formation of iron deposits, as in the transportation and deposition of iron, is ^briefly outlined. Sedimentary iron 

deposits are classified into four groups, oxides and hydroxides, carbonates, sulfldes, and silicates, and each is discussed.

Tyrrell, George Walter.

The Tertiary igneous geology of Scotland in relation to Iceland and Greenland: 

Dansk Geol. F0ren. Meddelelser, Bind 11, Heft 4, p. 413-440, illus., 1949. 

"The succession of the Tertiary igneous rocks in Greenland and Iceland 

is parallel to that in the Scoto-Irish region, except for minor variations 

the rock types in the three regions are petrographically identical, and 

the facts point to the geological and petrological unity of the great 

Thulean igneous region."

Ulrich, Franklin Peter. See Roberts, E. B.

Umbach, Paul Henry.

Cretaceous rocks of the San Juan Basin area, in Guidebook of the San Juan 

Basin, New Mexico and Colorado, p. 82-84, illus., 1950. The Cretaceous 

strata are described briefly and a formation table is given.
266 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Umbgrove, Johannes Herman Frederik.

Rhythm and synchronism of tectonic movements: Am. Jour. Sci., v. 248, no. 8, 

p. 521-526, illus., Aug. 1950. The results obtained by Hans Stille concerning the time relations of tectonic movements are discussed. The 

criticism of J. Gilluly is considered too extreme ; that of L. M. R Rutten, 

good. Additional evidence in support of the concept of rhythmic 

alternation of erogenic and non-orogenic periods is cited.

United States Bureau of Reclamation.

Geological investigations: U. S. Bur. Reclamation, Boulder Canyon Project, 

Final Report, Pt. 3, Bull. 1, 231 p., illus. incl. geol. maps, 1950. Exploration and regional geology of the Boulder Canyon and Black Canyon 

areas of the Colorado River, Nevada and Arizona, in connection with 

the location and construction of Hoover Dam, are described. Geological 

studies essential to the construction of auxiliary structures (diversion 

tunnels, spillways, etc.) are also described. Data on local mineral 

deposits are included.

United States Department of Agriculture, Soil Conservation Service.

Annotated bibliography on sedimentation: Sedimentation Bull. no. 2, 351 p., 

Feb. 1950. The bibliography is arranged alphabetically by author and 

contains a subject index.

United States Department of the Interior.

Geology, in A survey of the recreational resources of the Colorado River Basin, 

p. 22-55, illus., Government Printing Office, Washington, 1950. A general 

account of the physiographic features and geologic history of that part 

of the southwestern United States drained by the Colorado River.

United States Geological Survey. See also California University, Institute of 

Transportation and Traffic Engineering.

1. Dinosaur National Monument: U. S. Geol. Survey Topog. Map, Dinosaur 

National Monument, Colorado-Utah. Scale 1: 62,500 or about 1 inch 

to 1 mile. 1950. A popular description of the area, with notes on the 

rocks and the dinosaurs and a columnar section, is given on the reverse 

side of the map.

2. Geologic map of the central part of the Batesville manganese district, Independence and Izard Counties, Arkansas: U. S. Geol. Survey Mineral 

In VS., Field Studies Map MF 1. Scale 1 inch to % mile. 1950. Geologic

mapping by Douglas M. Kinney and John A. Straczek.

3. Total intensity aeromagnetic map of Adams County, Indiana. No. GP 20. 

Scale 1 inch to 1 mile. 1950.

4. Total intensity aeromagnetic map of Alien County, Indiana. No. GP 21. 

Scale 1 inch to 1 mile. 1950.

5. Total intensity aeromagnetic map of Boone County, Indiana. No. GP 35.

Scale 1 inch to 1 mile. 1950.

6. Total intensity aeromagnetic map of CarTOll COUflty, Indiana, No. GP 22. 

Scale 1 inch to 1 mile. 1950.

7. Total intensity aeromagnetic map of Cass County, Indiana. Scale 1 inch

to 1 mile. 1950.

8. Total intensity aeromagnetic map of Clinton County, Indiana. NO, GP 36, 

Scale 1 inch to 1 mile. 1950.

9. Total intensity aeromagnetic map of Daviess County, Indiana. No. GP 7. 

Scale 1 inch to 1 mile. 1950.

10. Total intensity aeromagnetic map Of De Kalb County, Indiana. No. GP 23.

Scale 1 inch to 1 mile. 1950.

11. Total intensity aeromagnetic map of Dubois county, Indiana. NO. GP s.

Scale 1 inch to 1 mile. 1950.

12. Total intensity aeronnxgnetio nxaj, o£ B3ru>> o.-nt County Tnclifini Scale 1 inch

to 1 mile, 1950, ,

13. Total intensity aeromagnetic map of Gibson County, Indiana. M). G" d7.

Scale 1 inch to 1 mile. 1950.

14. Total intensity aeromagnetic map of Hendricks County, Indiana. No. GP 38 

Scale 1 inch to 1 mile. 1950.

15. Total intensity aeromagnetic map of Howard County, Indiana. No. GP 24. 

Scale 1 inch to 1 mile. 1950.
BIBLIOGRAPHY 267

United States Geological Survey Continued

16. Total intensity aeromagnetic map of Huntington County, Indiana. No. 

GP25. Scale 1 inch to 1 mile. 1950.

17. Total intensity aeromagnetic map of Kosciusko County, Indiana. No. GP 26. 

Scale 1 inch to 1 mile. 1950.

18. Total intensity aeromagnetic map of Lagrange County, Indiana. No. GP 27-. 

Scale 1 inch to 1 mile. 1950.

19. Total intensity aeromagnetic map of Marshall County, Indiana. Scale 1 

inch to 1 mile. 1950.

20. Total intensity aeromagnetic map of Martin County, Indiana. No. GP 9. 

Scale 1 inch to 1 mile. 1950.

21. Total intensity aeromagnetic map of Miami County, Indiana. No. GP 28. 

Scale 1 inch to 1 mile. 1950.

22. Total intensity aeromagnetic map of Montgomery County, Indiana. No. 

GP39. Scale 1 inch to 1 mile. 1950.

23. Total intensity aeromagnetic map of Noble County, Indiana. No. GP 29. 

Scale 1 inch to 1 mile. 1950.

24. Total intensity aeromagnetic map of Perry County, Indiana. No. GP 40. 

Scale 1 inch to 1 mile. 1950.

25. Total intensity aeromagnetic map of Pike County, Indiana. No. GP 10. 

Scale 1 inch to 1 mile. 1950.

26. Total intensity aeromagnetic map of Porter County, Indiana. No. GP 30. 

Scale 1 inch to 1 mile. 1950.

27. Total intensity aeromagnetic map of Putnam County, Indiana. No. GP 41. 

Scale 1 inch to 1 mile. 1950.

28. Total intensity aeromagnetic map of St. Joseph County, Indiana. Scale 

1 inch to 1 mile. 1950.

29. Total intensity aeromagnetic map of Spencer County, Indiana. No. GP 11. 

Scale 1 inch to 1 mile. 1950.

30. Total intensity aeromagnetic map of Steuben County, Indiana. No. GP 31. 

Scale 1 inch to 1 mile. 1950.

31. Total intensity aeromagnetic map of Tippecanoe County, Indiana. No. 

GP42. Scale 1 inch to 1 mile. 1950.

32. Total intensity aeromagnetic map of Vanderburgh County; Indiana. No. 

.GP43. Scale 1 inch to 1 mile. 1950.

33. Total intensity aeromagnetic map of Vermillion County, Indiana. No. GP 

44. Scale 1 inch to 1 mile. 1950.

34. Total intensity aeromagnetic map of Wabash County, Indiana. No. GP 

32. Scale 1 inch to 1 mile. 1950.

35. Total intensity aeromagnetic map of Warren County, Indiana. No. GP 

45. Scale 1 inch to 1 mile. 1950.

36. Total intensity aeromagnetic map of Warrick County, Indiana. No. GP 

12. Scale 1 inch to 1 mile. 1950.

37. Total intensity aeromagnetic map of Wells County, Indiana. No. GP 33. 

Scale 1 inch to 1 mile. 1950.

38. Total intensity aeromagnetic map of Whitley County, Indiana. No. GP 

34. Scale 1 inch to 1 mile. 1950.

39. Total intensity aeromagnetic map of Bonne Terre quadrangle, Missouri. 

No. GP 14. Scale 1 inch to V2 mile. 1950.

40. Total intensity aeromagnetic map of Potosi quadrangle, Missouri. No. GP 

13. Scale 1 inch to y2 mile. 1950.

41. Total intensity aeromagnetic map of parts of Guadalupe and De Baca 

Counties, New Mexico. No. GP 15 and GP 16. Scale 1 inch to 1 mile. 

1950.

42. Total intensity aeromagnetic map of parts of San Miguel and Gnadalupe 

Counties, New Mexico. No. GP 17 and GP 18 (2 sheets). Scale 1 inch 

to 1 mile. 1950.

Untermann, Billy R. See Untermann, G. E.

Untermann, George E.

(and Untermann, Billy R.). Stratigraphy of the Split Mountain area, in 

Petroleum geology of the Uinta Basin: Guidebook to the Geology of Utah, 

no. 5, p. 121-126, illus., 1950. Gives a detailed table of the Paleozoic 

and Mesozoic formations in the Split Mountain area, Utah, and a cross 

section.
268 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Urey, Harold Clayton.

1. (and others). Paleotemperatures of the Upper Cretaceous [abs.l : Science, 

v. Ill, no. 2887, p. 462-463, Apr. 28,1950.

2. The state of the primitive earth [abs.] : Science, v. 112, no. 2912, p. 451, 

Oct. 20, 1950.

Valerius, Claude N. See Von Croy, S.

Vanderpool, E. W.

Correlation of the El Paso formation, in West Texas Geol. Soc. Guidebook, 

1950 Field Trip, October 7-8, 1950, p. 61-63, illus., 1950. On the basis 

of insoluble residues, the El Paso formation is considered equivalent, 

at least in part, to both the Ellenburger and Wilberns in subsurface.

Vander Pyl, Adrian.

Glacial water plane in the Willimantic Valley of Connecticut [abs.]: Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1572, Dec. 1950.

Vanderwilt, John W.

[Discussion of alteration and its application to ore search], in Applied geology, 

a symposium: Colo. School of Mines Quart., v. 45, no. IB, p. 284-285, 

Jan. 1950.

Van Horn, Earl C.

(and LeGrand, J. R., and McMurray, Lynn Lloyd). Geology and preliminary 

ore dressing studies of the Carolina barite belt: S. C. Research Plan. 

Dev. Bd. Bull. 18, 25 p., map, 1949. The geologic occurrence and origin 

of barite, and the various mines and prospects, are briefly described. 

Barite occurs only in a quartz-sericite schist zone near the contact of the 

Bessemer granite and Battleground schist, and roughly parallel to local 

foliation. It is found in two forms, veins and disseminated particles.

Van Houten, Franklyn Bosworth.

Geology of tne western part of Beaver Divide area. Fremont County, Wyoming : U. S. Geol. Survey Oil and Gas Inv. Map OM 113. 1950. An index

map, geologic map, columnar sections, cross- section, and correlations 

are given, together with a text on the Tertiary stratigraphy of the area.

Van Orstrand, Charles Edwin.

Extracts from notes on geothermics, 1949 [abs.] : Econ. Geology, v. 45, no. 4, 

p. 388-389, June-July 1950.

Van Siclen, DeWitt Clinton.

Reef-type oil fields, Scurry County, Texas: Abilene Geol. Soc., Geol. Contr., 

p. 70-79, illus., 1950. Describes the discovery history, stratigraphy, 

structure, reef origin and reef characteristics in Scurry County, Texas, 

with particular reference to the Kelley-Snyder field.

Van Tuyl, Donald Wells.

Ground-water resources of the valley-fill deposits in the Pittsburgh area: Pa. 

Acad. Sci. Proc., v. 24, p. 155-160,1950. General comments on the character of the alluvium in the valleys of the Ohio River, the Allegheny

River, and smaller streams, the use of ground -water in the area, and the

chemical quality of the water.

Van Tuyl, Francis Maurice.

(and Kuhn, Truman Howard), (editors). Applied geology, a symposium:

Colo. School of Mines Quart., v. 45, no. IB, 343 p., illus., Jan. 1950. 

Contains 14 papers and discussions delivered at the conferences on 

petroleum geology and hydrology, engineering geology, and mining geology, held as part of the 75th Anniversary Program of the Colorado Scflool of Mines, September 29-octouer i, 1949.
BIBLIOGRAPHY 269

Van Valkenburgh, Alvin, Jr.

(and Insley, Herbert). The synthesis of fluo-silicate minerals: Ceramic Age, 

v. 56, no. 5, p. 20-22, Nov. 1950. One of the papers presented at the 

crystal chemistry symposium held at Rutgers University, June 2, 1950. 

The paper discusses briefly the apparatus and procedure used in the 

synthesis of fluorine micas. The work is part of the program sponsored 

by the Office of Naval Research on the artificial crystallization of technically useful compounds and is being carried on at the National Bureau 

of Standards.

Varnes, David Joseph. See also Truesdell, P. E., 1.

Relation of landslides to sedimentary features, in Applied sedimentation, p. 

229-246, illus., 1950. Describes the physical features, structures, and 

stress distribution in sedimentary materials which contribute to the 

production of landslides. Various methods used in combating slides are 

discussed. An extensive bibliography is appended.

Vaux, G. See Overholt, J. L.

Venker, Donald P.

Travel time anomalies for P and S earthquake waves from the Aleutians, 

Central and South America [abs.]: Earthquake Notes, v. 21, no. 3, p. 

21-22, Sept. 1950.

Verhoogen, Jean.

Source-rock of lead ores and the age of the granitic layer: Nature (London), 

v. 164, no. 4158, p. 72, July 9, 1949. Comments on the assumption of 

A. Holmes that the source-rocks of lead ores were granitic, from the 

point of view of the time and manner of formation of the sialic crust.

Ver Planck, William E., Jr. See Honke, M. T., Jr. 

Verville, George Julius. See Thompson, M. L.

Ver Wiebe, Walter August.

North American and Middle East oil fields, iv, 259 p., illus. Wichita, Kansas. 

1950. Describes the stratigraphy and structure of 15 oil-producing 

provinces in the United States, several areas in Canada, Alaska, and 

Mexico, and, very briefly, the fields of Iraq, Iran, and Saudi Arabia. 

Production data are given.

Vesselowsky, Sergius Theodore. See Rabbitt, M. C.

Vestal, Franklin Earl.

Carroll County geology: Miss. Geol. Survey Bull. 67, 114 p., illus. incl. geol. 

map, 1950. Discusses the Tertiary and Quaternary stratigraphy and 

the structure in detail. The mineral resources of the area are described. 

They are chiefly sand, gravel, clay, and loess.

Vestal, Jack H.

Petroleum geology of the Smackover formation of southern Arkansas: Ark. 

Res. Dev. Comm. Div. Geology Inf. Circ. 14, 19 p., illus., 1950. The 

stratigraphy and structure of the Jurassic Smackover limestone and 

associated formations in southern Arkansas are reviewed and reinterpreted on the basis of new log and core data. The geologic history of 

the area is outlined. Structure contour and isopach maps of the Smackover limestone, well logs, and a cross-section through southern Arkansas 

are given. A bibliography is appended. V. S.

Veytia, Mario. See Wilson, I. F.

Vickers, Robert Brice, Jr.

(and Ratliff, Fred). Pardue field, Fisher County, Texas: Abilene Geol. Soc., 

Geol. Contr., p. 36-38, illus., 1950. Notes oh the discovery wells and the 

producing horizons.

980682° 52 18 ' '
270 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Vietzke, Werner J.

Uranium in Upper Michigan: Mineralogist, v. 18, no. 6, p. 298, 300, 302, illus., 

June 1950. A popular account of the geologic history of northern 

Michigan as background for discoveries of radioactive minerals.

Villa R., Bernardo. See Hibbard, C. W., 1.

Vincent, Ewart Albert.

The chemical composition and physical properties of the residual glass of the 

Kap Daussy tholeiite dike, East Greenland: Mineralogical Mag., v. 29, 

no. 208, p. 46-62, illus., Mar. 1950; abs., Am. Mineralogist, v. 35, nos. 

3-4, p. 320-321, Mar.-Apr. 1950. Detailed description of glass in an 

olivine tholeiite dike, one of a Tertiary dike swarm on the coast of East 

Greenland. Chemical and optical data are given, and comparisons made 

with data for glass in a tholeiite from Scotland. The investigation was 

made to determine the trend of differentiation of the dike magma, and 

a discussion of the crystallization sequence is included.

Vine, James David.

(and Hail, William J., Jr.). Geologic map of the Hobson area, central Montana: U. S. Geol. Survey Oil and Gas Inv. Prelim. Map no. 108. 1950. 

A colored geologic map, scale 1 inch to 1 mile, and three columnar sections 

are accompanied by a text describing the Carboniferous, Jurassic, and 

Cretaceous stratigraphy and the mineral resources. Oil and gas possibilities are mentioned.

Viniegra O., Francisco.

Breve analisis geologico de la llamada cuenca de Veracruz; sus posibilidades 

petroliferas; Petr61eos Mexicanos, no. 79, p. 100-112, illus., Mar. 1950; 

Asoc. Mex. Geol. Petrol. Bol., v. 2, no. 4, p. 281-289, illus., Apr. 1950. 

The geomorphology of the Veracruz basin, Mexico, is described, with 

particular attention to the Teziutlan and Papaloapan physiographic 

provinces; Mesozoic and Tertiary sedimentary rocks in the latter are 

considered; and the local structures are found indicative of oil 

possibilities. V. S.

Visher, Stephen Sargent.

Memorial to Mark Jefferson [Mark Sylvester William Jefferson, 1863-1949]: 

Geol. Soc. Am. Proc. 1949, p. 175-176, port., June 1950.

Vitaliano, Charles J. See also Mason, B. H., 1, 2,3.

Needles magnesite deposit, San Bernardino County, California: Calif. Jour. 

Mines and Geology, V. 46, no. 3, p. 357-372, illus. incl. geol. map, July 1950. 

The Needles magnesite deposit, San Bernardino County, California, is a 

lens enclosed in highly contorted and faulted sedimentary rocks of Tertiary age. The rocks, structures, and mineralization are described. 

Reserves are estimated at more than 500,000 tons of ore. V. S.

Volin, Melden Earl.

(and Hild, John Henry). Investigation of Smuggler lead-zinc mine, Aspen, 

Pitkin County, Colo.: U. S. Bur. Mines Rpt. Inv. 4696, 47 p. (i), illus.,

June 1950. The Smuggler lead-zinc mine, Aspen district, Colorado, was

investigated in 1946-48 with a view to evaluating the ore in a mineralized 

breCCia ZOne at the Contact Of the Leaclvllle and Weber formations.

The breccia ores are related to faults displacing the contact. The geology

of the area is reviewed, and log data are given. V. S.

Volk, Joseph A.

! (and Robertson, Florence).' The electronic seismograph: Seismol. Soc. Am.

Bull., v. 40, no. 2, p. 81-93, illus., Apr. 1950. Describes tne carrier bridge,

capacitance-type seismograph with electronic voltage regulation and the 

related equipment, Which are Used at the tripartite seismic station at

Florissant, Missouri, recently set up for the Study Of Short-period

micrOSeismS. Constituent parts are discussed, and photographs and

schematic diagrams are given. V. S.
BIBLIOGRAPHY 271

Volk, Joseph A. Continued

2. The photoelectric seismograph: Seismol. Soc. Am. Bull., v. 40, no. 3, p. 

169-173, illus., July 1950. In the photoelectric seismograph described, 

the light beam of an exciter lamp, reflected from the seismometer's galvanometer mirror, is focused through a modulating V-shaped light wedge 

on a photoelectric cell, the pulses of which, amplified and rectified, drive 

an ink recorder. The advantages of the system are discussed. V. S.

Von Croy, Stefan.

(and Valerius, Claude N.). Case history of Benton field, Bossier Parish, 

Louisiana [abs.] : Oil and Gas Jour., v. 48, no. 51, p. 120, Apr. 27,1950.

Von Engeln, Oskar Dietrich.

Submarine canyons and the ice age, a discussion: Jour. Geology, v. 58, no. 2, p. 

161-163, Mar. 1950. Apparent formation of the canyons by subaerial 

stream erosion during Pleistocene time is explained by a temporary increase in the density of the earth and a corresponding universal continental uprise, producing the refrigeration of the Pleistocene glacial 

stages. Alternative hypotheses are criticized. V. S.

Von Gaertner, Hans Rudolf.

Brschliessung und Entwicklung der Erdolfelder im westlichen Canada: Erdol 

und Kohle, v. 3, no. 7, p. 305-313, illus., July 1950. Information is given 

on the discovery, occurrence, production, and reserves of various oilbearing regions in Alberta, Saskatchewan, and the Northwest Territories. 

An extensive bibliography is included.

Waage, Karl Mensch.

Refractory clays of the Maryland coal measures: Md. Dept. Geology, Mines 

and Water Res. Bull. 9, 182 p., illus. incl. geol. maps, 1950. The stratigraphy of the coal beds and underclay zones, and the distribution of 

refractory clays in the Georges Creek, Castleman, and northern Upper 

Potomac basins are described. The clay deposits of the Castleman are 

discussed in detail, and a geologic map (colored) of the basin on a 

scale of 1 inch to 2,000 feet is included. Other geologic sketch maps of 

several areas are given.

Waddington, George Wilfred.

1. Limestone deposits of the Mingan Islands area, Saguenay County: Quebec 

Dept. Mines, Geol. Surveys Br., Geol. Rpt. 42, pt. 2, 13 p., illus., 1950. 

A reconnaissance report, including chemical analyses of the limestones 

in the Mingan Islands and the north shore of the St. Lawrence River, 

near the village of Havre St. Pierre, Quebec. Substantial reserves, 

favorably located for exploitation, are indicated.

2. Marl deposits of the Province of Quebec: Quebec Dept. Mines, Mineral Deposits Br., Geol. Rpt. 45, 127 p., illus., 1950. The marl deposits of 63 

townships and seigneuries in Quebec are described briefly and the reserves of each are estimated. Analyses of 154 samples are given.

Wadsley, A. D. See also Mathieson, A. M. ' 

Synthesis of some hydrated manganese minerals: Am. Mineralogist, v. 35, 

nos. 7-8, p. 485-499, illus., July-Aug. 1950. "Attempts have been made to 

synthesize the'minerals psilomelane, cesarolite, ranci&te, chalcophanite, 

lithiophorite, and lampadite by hydrothermal alteration of the metallic 

derivatives of a hydrous manganese oxide. The compounds prepared 

are compared by chemical, #-ray, and electron microscopic methods with 

mineral specimens, and the conclusions which are drawn offer some 

evidence for the paragenesis of these minerals." 

Waesche, Hugh Henry.

Growth of water-soluble and other crystals at low temperatures [abs.] : Geol. 

Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1512, Dec. 1950.

Waggoner, Eugene B.

Geologic mapping of tunnels for engineering use [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1559-1560, Dec. 1950.
272 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Wagner, Holly Clyde. See Rothrock, H. E., 1.

Wagner, Norman Spencer.

Ground-water studies in Umatilla and.Morrow Counties': Oreg. Dept. Geology 

and Mineral Indus. Bull. 41, 100 p. (t), illus. incl. geol. map, 1949. 

Umatilla and Morrow counties, Oregon, are characterized by Tertiary 

volcanic lava flows interbedded with sediments. Favorable groundwater conditions exist at some depth in the Coriba basalt group in the 

central part of the area. Water-well data and a bibliography are given.

V. S.

Wagner, Warren Richard.

(and Gabelman, John W.). Micro (Petrographic) analysis, in Subsurface 

geologic methods, p. 172-183, illus., Colo. School of Mines, 1950. Describes the technique of heavy mineral separation, and the preparation 

of fragment and thin sections of sedimentary rocks.

Wahl, William G.

(and Osborne, Freleigh Fitz). Cawatose map-area, Pontiac County: Quebec 

Dept. Mines, Geol. Surveys Br., Geol. Rpt. 44, 37 p., illus. incl. geol. map, 

1950. Petrologic data on the paragneisses, orthogneisses, limestone, 

and pegmatites of the Cawatose area, in the Grenville sub-province of 

the pre-Cambrian shield, southwestern Quebec, are presented and their 

origin is discussed.

Wahlstrom, Ernest Eugene.

1. Introduction to theoretical igneous petrology, ix, 365 p., illus. New York, 

John Wiley & Sons, Inc., 1950. A presentation of the basic concepts 

pertaining to the composition and formation of igneous rocks. Equilibrium in systems of various components, and particularly silicate systems, 

is outlined. The source, nature, emplacement, and crystallization of 

magmas, differentiation, and granitization are treated in detail. Sections on igneous minerals, origin of rock types, and classification are 

included.

2. Melonite in Boulder County, Colorado: Am. Mineralogist, v. 35, nos. 9-10 

p. 948-953, illus., Sept.-Oct. 1950; abs., nos. 3-4, p. 290, Mar .-Apr. 1950. 

Describes the occurrence, association, and paragenesis of melonite, a

rare ditelluride of nickel, NiTe2 , from various mines in Boulder County,

Colorado, The method of identification is described briefly.

Wahrhaftig, Clyde.

Physiographic history of southern Alaska, a hypothesis [abs.] : Geol. SOC. Am. 

Bull., V. 61, no. 12, pt. 2, p. 1532, Dec. 195O.

Wales, D-onald B. SGG TCm-tz, V. E.

Walker, Cecil L.

Geologic map and structure sections, Cumberland Reservoir-Little Muddy Creek

area, Lincoln County, Wyoming: Wyo. Geol. Assoc. Guidebook, Southwest 

Wyoming, facing p. 24,1950.

Walker, George Walton.

1. The Calera limestone in San Mateo and Santa Clara Counties, California 

Calif. Dept. Nat. Res., Div. Mines Spec. Rpt. 1-B, 7 p., illus. incl. geol". 

map, Dec. loso. Describes the distribution, age, physical and chemical 

properties, and economic possibilities of the Calera limestone in tne San 

Mateo area, south of San Francisco, California.

2. Sierra Bianca limestone in Santa Barbara County, California: Calif. Dept.

Nat. Res., Div. Mines Spec. Rpt. 1-A, 5 p., geol. map, Dec. 1950. Gives

the general geology and a reconnaissance map of a part of the san

Rafael Mts. area north of Santa Barbara, California. The lithology and

Composition Of the Sierra Bianca limestone are described. The rock is

of commercial grade, and the economic possibilities are evaluated,

Walker, Robert Y., Jr.

1. Bateman Ranch field, King County, Texas: Abilene Geol. Soc., Geol. Contr., p. 

2-6, illus., 1950. Briefly describes the history, and geology and gives 

production statistics.
BIBLIOGRAPHY 273

Walker, Robert Y., Jr. Continued

2. Ross Ranch field, King County, Texas: Abilene Geol. Soc., Geol. Contr., 

p. 62-65, illus., 1950. The history of discovery, structure, and producing 

horizons are described.

Wallace, Louis S. See Wheeler, R. R., 1.

Wallace, Robert Earl.

1. (chairman). Columbia River basalts; a recorded informal discussion: 

Northwest Sci., v. 24, no. 2, p. 51-58, May 1950. Transcript of the discussion held at the 1948 meeting of the Geology-Geography section of the 

Northwest Scientific Association, and participated in by C. E. B. Conybeare, V. E. Scheid, K. P. McLaughlin, R. L. Lupher, A. R. Ritchie, 

V. E. McKelvey, H. T. Stearns, R. E. Fuller, F. 0. Jones, H. E. Culver, 

R. C. Newcomb, and E. M. Baldwin.

2. Determination of clip and strike by indirect observations in the field and from 

aerial photographs; a solution by stereographic projection: Jour. Geology, v. 58, no. 3, p. 269-280, illus., May 1950. "A method of determining 

the true dip and strike of a bed from observation of its outcrop lines as 

seen from a distance or in aerial photographs is presented. The angular 

relations between apparent plunge and trend of outcrop lines and true 

dip and strike of the bed are determined by the use of the stereographic 

projection." Three examples are given, and errors are considered. V. S.

3. Geometry of shearing stress and relation to faulting [abs.] : Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1533, Dec. 1950.

Wallis, William E.

Frederick A. Sutton (1894-1950) : Am. Assoc. Petrol. Geol. Bull., v. 34, no. 8, 

p. 1777-1778, port., Aug. 1950.

Walter, Edward Joseph.

Underground vibrations [abs.] : Earthquake Notes, v. 21, nos. 1-2, p. 10, Mar.- 

June 1950.

Walter, J. P.

The distribution of radioactivity in some" rock formations of Ontario [abs.]: 

Royal Soc. Canada Proc., 3d ser., v. 44, p. 231,1950.

Walters, Kenneth L. See Frye, J. C., 2.

Walters, Robert Fred.

Oil production from pre-Cambrian basement rocks in central Kansas [abs.]: 

Am. Assoc. Petrol. Geol. Bull., v. 34, no. 3, p. 622, Mar. 1950.

Walthier, Thomas Nash.

The Precarnbrian-Cambrian problem of east Newfoundland: N. Y. Acacl. Sci. 

Trans., ser. 2, v. 12, no. 7, p. 208-213, illus., May 1950. The stratigraphy 

and structure of eastern Newfoundland are summarized, and it is 

observed that, due to lack of uniformity and continuity in the sections 

from the various areas studied, no criteria are available for precisely 

distinguishing the pre-Cambrian-Cambrian boundary. The evidence 

points to a general grading of the sediments and the absence of any 

major break.

Walton, Matt Savage, Jr.

(and O'Sullivan, Robert B.). The intrusive mechanics of a clastic dike: Am. 

Join1 . Sci., v. 248, no. 1, p. 1-21, illus., Jan. 1950. A dike in Connecticut, 

cutting into a dolerite sill from an underlying conglomerate, is considered 

formed by the expansion of water or water vapor in the pore space of 

the conglomerate in response to a local drop in pressure resulting from 

the opening of a fracture in the dolerite. V. S.

Walton, William R. See Phleger, F. B., Jr., 2. 

Wanenmacher, Joseph Melching. See Keplinger, C. H.
274 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Wanless, Harold Rbllin.

1. Late Paleozoic cycles of sedimentation in the United States: Internat. 

Geol. Cong., 18th, Great Britain, Rpt. pt. 4, p. 17-28, illus., 1950; abs., 

Volume of titles and abstracts, p. 22-23, 1948. The sedimentary cycles 

of marine and non-marine strata characteristic of Mississippian, Pennsylvanian, and Permian rocks in various regions of the United States 

are described. The explanations which have been proposed for cyclic 

sedimentation are reviewed.

2. Selection of aerial photographs for teaching geology, in Symposium of information 'relative to uses of aerial photographs by geologists: Photogrammetric Engineering, v. 16, no. 5, p. 796-802, Dec. 1950. A survey 

of the outstanding aerial photographs of various geologic features contained in the University of Illinois collection. Brief descriptions are 

given with each illustration.

3. Aerial photograph collection, in Symposium of information relative to uses 

of aerial photographs by geologists: Photogrammetric Engineering, v. 16, 

no. 5, p. 803-806, Dec. 1950. Describes the method of indexing the 

University of Illinois collection of aerial photographs and gives a sample 

portion of the index.

Ward, W. H.

Glaciology, in Baffin Island expedition, 1950, a preliminary report: Arctic, y. 3, 

no. 3, p. 141-143, Dec. 1950. Glaciological data for the Barnes Ice 

Cap are briefly presented.

Ward, William.

(and Thomson, James Edgar). Geology of the Macassa mine: Ontario Dept. 

Mines Ann. Bpt., 1948, v. 57, pt. 5, p. 125-132, illus., 1950. Description of 

the general geology, structure, ores, veins, and wall-rock alteration of 

the Macassa gold mine in the Kirkland Lake area, northern Ontario.

Waring, W. W.

(and Layer, Douglas Bruce). Devonian dolomitized reef, D3 reservoir, Leduc 

field, Alberta, Canada: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 2, p. 

295-312, illus., Feb. 1950. .The reef is studied as to the volume and 

relations of the various types of void spaces in rock by examination of 

cores, electrolog and. core-data correlation, and determinations. of porosity and permeability. The results show the presence of zones of very 

low intergranular porosity. V. S.

Wark, W. J. See Hawley, J. E., 3.

Warnock, M. D.

Bibliography on the loess, as it applies, to the loess of North America: U. S. 

Bur. Keel., Tech, Bib. no. 207, 29 p. (I), May 1950. A bibliography of 

345 references arranged alphabetically by author.

Warren, Harry Verney.

1. (and Delavault, Robert E.). Gold and silver content of some trees and 

horsetails in British Columbia: Geol. Soc. Am. Bull., v. 61, no. 2, p. 123- 

128, Feb. 1950. Gold was contained only in samples from auriferous

areas, bxit silver -was found even in samples from areas with no silver

mineralization. V. S.

2. (and Delavault, Robert E.). A history of biogeochemical investigations in

British Columbia: Canadian Min. Met. Bull. no. 458, p. 344-350, June 

1950; Canadian Inst. Mining and Metallurgy Trans., v. 53, p. 236-242, 

1950. The progress of biogeochemistry, the relation of botany to subsurface geology, as a means of locating ore deposits, is traced from its

beginnings in 1944 to the present time.

3. (and Delavault, Eobert E., and Irish, Ruth). Improved dithizone field test 

for heavy metals in water [abs.]: Geol. Soc. ,Am. Bull., v. 61, no. 12, pt. 

2, p. 1533, Dec. 1950.
BIBLIOGRAPHY 275

Warren, Percival Sydney.

(and Stelck, Charles Richard). Succession of Devonian faunas in western 

Canada: Royal Soc. Canada Trans., 3d ser., v. 44, sec. 4, p. 61-78, June 

1950. The Devonian strata of western Canada have been subdivided into 

twenty faunal zones, based as far as possible on collections from type 

5 sections. Each zone is described and discussed. A composite table 

shows the correlation of the zones at eleven localities in Alberta, Manitoba, and the Northwest Territories.

Wasem, Adam Richard. See also Brundall, L.

Photogeology applied to petroleum exploration: World Oil, v. 130, no. 5, p. 

64-66, 68, 70, 72, illus., Apr. 1950. Methods of preparing geologic maps 

from aerial photographs are described for areas of extensive surface 

outcrops. Notes are given on the determination of dip of beds, delineation of stratigraphic units, and interpretation of structures. V. S.

Washburn, Albert Lincoln. See Moffit, F. H., 2.

Washken, Edward.

(and Buerger, Martin Julian). The effect of potassium on the nepheline-carnegieite transformation [abs.]: Am. Mineralogist, v. 35, nos. 3-4, p. 290- 

291, Mar-Apr. 1950.

Wasselhoeft, Robert, Jr.

North Winters field, Runnels County, Texas: Abilene Geol. Soc., Geol. Contr., 

p. 92-95, illus., 1950. Describes the discovery, stratigraphy, and structure of the field.

Waterman, George H. See Caldwell, W. E.

Waters, Aaron Clement.

Multiple dike feeders of the Columbia River basalt [abs.]: Geol. Soc. Am. 

Bull., v. 61, no. 12, pt. 2, p. 1533, Dec. 1950.

Waters, Kenneth Harold. See Kottlowski, F. E., 2.

Waterways Experiment Station.

Geological investigation of faulting in the Lower Mississippi Valley : Waterways 

Expt. Sta. Tech. Mem. no. 3-311, 91 p. ($), illus., May 1950. "The 

. investigation . . . was undertaken to determine the relationships, if 

any, existing between fault systems and crevasses in the Lower 

Mississippi River alluvial valley and the effects of faults on stream 

diversions and orientations of physiographic features." An appendix 

describes earthquake activity in the region. A bibliography is given.

Watson, Elaine. See Boardman, L., 1,3,7. 

Watson, Howard D. See Coons, R. M.

Watson, Kenneth DePencier.

1. Hydrocarbon with cinnabar in British Columbia: Am. Mineralogist, v. 35, 

nos. 5-6, p. 457-459, May-June 1950. Describes the occurrence of hydrocarbon, associated with cinnabar, calcite, and quartz in greenstone, at 

the Phillips prospect, near the Manitou mercury mine, Tyaughton Lake 

area, southwestern British Columbia.

2. Prehnitization of albitite [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1533-1534, Dec. 1950.

Watson, Robert James. See Bemrose, J.

Wayne, William J. See also Thornbury, W. D., 2; Wier, C. E., 3. 

1. A karst valley in western Monroe County, Indiana: Ind. Acad. Sci. Proc., v. 

59, p. 258-263, illus., 1950. A karst valley in the headwater region of 

Indian Creek, 7 miles southwest of Bloornington, Indiana, is described, 

with particular reference to development and subterranean drainage.
276 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Wayne, William J. Continued

2. Description of the Indiana karst: Compass, v. 27, no. 4, p. 215-223, illus. 

incl. map. May 1950. -Subterranean drainage and karst, topography are 

exemplified in southern Indiana particularly in the Mitchell Plain, along 

the outcrop belt of Middle Mississippian limestones. The numerous 

features of karst topography lapies, grikes, sinkholes, uvalas, and 

others and hydrology are described. V. S.

Weaver, Charles Edward. See Folk, R. L., 2.

Weaver, Paul. See also Colle, J. O.

1. Variations in history of continental shelves : Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 3, p. 351-360, illus., Mar. 1950 ; discussion by W. E. Pratt, with 

reply by Paul Weaver, no. 7, p. 1589-1592, July 1950. Gulf of Mexico 

geology is discussed to show that the continental shelf is physiographically an eroded part of the coastal plain and that only its outer, steeper 

border with the continental slope has a tectonic origin. The evidence 

refutes W. E. Pratt's theory of a tectonic submergence of the shelf. V. S.

2. Milton Frank Reedy, Jr., recipient of President's Award : Am. Assoc. Petrol. 

Geol. Bull., v. 34, no. 5, p. 980-982, port., May 1950.

Webb, Gregory W, See Hintze, L. F.

Webb, Robert Wallace.

Volcanic geology of Toowa Valley, southern Sierra Nevada, California : Geol. 

Soc. Am. Bull., v. 61, no. 4, p. 349-357, illus. incl. geol. map, Apr. 1950; 

discussion by Evans B. Mayo, no. 9, p. 1021-1022, Sept. 1950. The 

cones, domes, flows, and sequence, relations, and character of flow 

phases, in and adjacent to Toowa Valley, Olancha quadrangle, are described, .with suggestions on the relative age of volcanism and geomorphic events. V.-'S.

Weber, Wilfred W. L.

Preliminary report on parts of Duverny and Landrienne Townships, AbitibiEast County : Quebec Dept. Mines, Mineral Deposits Br., Prelim. Rpt. 

228, 16 p. ($), geol. map, 1949. A brief report on the pre-Cambrian 

rocks, chiefly Keewatin-type volcanics, structure, and prospecting activity in the Duverny-Landrienne area of northern Quebec.

Weddle, Herman W. See Hazzard, J. C., 3.

Weeks, Alice Dowse.

(and Cisney, Evelyn A., and Sherwood, Alexander M.). Hummerite and montroseite, two new vanadium minerals from Montrose County, Colorado

[abs.] : Geol. Soc. Am, Bull., v. 61, no. 12, pt. 2, p. 1513, Dec/1950.

Weeks, -Lewis G.

Concerning estimates of potential oil reserves : Am. Assoc. Petrol. Geol. Bull., 

v. 34, no. 10, p. 1947-1953, Oct. 1950. The problem of estimating potential

oil reserves in the -world is discussed with particular reference to the

variation in the incidence of Oil occurrence in sediments and various

other factors. V. S.

Weeks, Warren Brinson.

Frederick Morrill Swain, Jr., recipient of President's Award: Am. ASSOC.

l. GeOl. Bull., V. 34, IIO. 5, p. 082-084, port., May 1950.

Weitz, Joseph Leonard. See Love, J. D., 2.

Welles, Samuel Paul,

A new elasmosaur from the Eagle Ford shale of TeXaS ', Systematic tion : Fondren Science Series, no. 1, pt. 1, 28 p., illus., southern Methodist 

Univ., Dallas, Texas, May 10, 1949. Describes the new species, ElasmoSaUrUS morganl, discovered on the Anderson farm near Cedar Hill,

Dallas County, Texas. The specimen W&8 fOUHQ IE ffle MglG FWfl We 

of Upper Cretaceous age. The species is compared with Elasmosaurus 

platyurus Cope, .Styxosaurus snowii (Williston) Welles, and other 

elasmosaurs.
BIBLIOGRAPHY 277

Wells, Dana.

Lower middle Mississippian of southeastern West Virginia: Am. Assoc. Petrol. 

Geol. Bull, v. 34, no. 5, p. 882-922, illus., May 1950; discussion by D. B. 

Reger, no. 9, p. 1910-1912, Sept. 1950. A stratigraphic study of the lower 

, middle Mississippian (lower Greenbrier age) of southeastern West Virginia, composed of the Hillsdale and Denmar (new) formations of the 

Meramecian series. These formations are predominantly calcarenites 

and calcilutites deposited in a transgressing sea along the flank of a 

miogeosyncline and are contemporaneous with purer limy sediments 

of the Mississippi Valley. Faunal lists and numerous stratigraphic 

sections are given. V. S.

Wells, Francis Gerritt. See also Cady, W. M., 3.

(and Cater, Frederick William, Jr.). Chromite deposits of Siskiyou County,

California: Calif. Dept. Nat. Res., Div. Mines Bull. 134, pt. 1, chap.

2, p. 77-127, illus. incl. geol. map, Oct. 1950. Chromite occurs both as pod 

o deposits and in disseminate form associated with peridotite in the

Klamath -Mts. of northern California. The ore is described, chemical

analyses are given, and reserves estimated. Seven groups of deposits 

. are recognized and described. A large map shows the distribution of

peridotite and chromite mines; several smaller geologic maps of mines

are included.

Wells, John D.

A study of the Eskridge shale: Kans. Acad. Sci. Trans., v. 53, p. 535-543, illus., 

1950. The Eskridge shale (Permian) in northeastern Kansas was 

studied to evaluate the significance of color in relation to deposition. It 

is concluded that the non-marine phase is represented by red and black 

shales; the marine phase by all other colors. The environment of the 

various colors and lithologies is interpreted.

Wengerd, Sherman Alexander.

1. Triassic rocks of northwestern New Mexico and southwestern Colorado, in 

Guidebook of the San Juan Basin, New Mexico and Colorado, p. 67-75, 

illus., 1950. The formations are described briefly and correlations are 

discussed. A list of references is included.

2. Photogeologic characteristics of Paleozoic rocks on the Monument Upwarp, 

Utah, in Symposium of information relative to uses of aerial photographs 

by geologists: Photogrammetric Engineering, v. 16, no. 5, p. 770-781, 

illus., Dec. 1950. The interpretation of the stratigraphy and structure 

of a portion of the Monument Upwarp, in southeastern Utah, from aerial 

photographs, is discussed.

Wenner, Carl-Gb'sta.

Pollen diagrams from Labrador: Geograflska Annaler, Bd. 29, hefte 3-4, p. 

137-373, illus., 1947; Stockholms Hogskolas Geol. Institut Medd. no. 86, 

241 p., illus. [1948]. A detailed, comprehensive account of the collection 

and analysis of pollen from Labrador. The geographical features, 

methods of surface sampling and pollen preparation, pollen analyses, 

and peat deposits are described. Pollen from Labrador is compared with 

that of other subarctic regions. Correlation of strata and pollen diagrams with strand lines is attempted. The pollen data are tabulated 

in detail and an extensive bibliography is given.

West, S. Stewart. . Dependence of seismic wave velocity upon depth and lithology: Geophysics, 

v. 15, no. 4, p. 653-662, illus., Oct. 1950. A relationship is deduced that 

determines the minimum velocity possible at a given depth and the 

maximum depth at which a given velocity can occur. The limit values 

are examined with reference to lithology; the relation of near-surface 

velocity to porosity is discussed; and it is shown how one can deduce 

the motion of shore lines during deposition. . V. S.
278 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

West Texas Geological Society.

Guidebook, 1950 Field Trip, October 7-8, 1950 ; Sierra Blanca region, Franklin 

Mountains, Texas. 68 p., illus., 1950. The stratigraphy, structure, volcanic rocks, and intrusive rocks of the Sierra Blanca region are described, 

and a geologic map is shown. Brief sections on the Franklin Mts., Juarez 

Mts., bolsons, test drilling, and correlation of the El Paso formation are 

included. A bibliography is given.

Weyl, Richard.

1. Geologia hist6rica de la Cordillera Central de la Isla de Santo Domingo y su 

posici6n en el arcp de las Antilles : Soc. Mex. Geog. Est. Bol., v. 66, no. 3, 

p. 431-452, illus. incl. geol. sketch map, Nov.-Dec. 1948. Gives the general features of the structure of the Island of Santo Domingo, and discusses in detail the geologic history and structure of the Cordillera 

Central in Cretaceous and Tertiary time. The place of Santo Domingo 

in the tectonics of the eastern Antilles is discussed.

2. Eine neue Tiefenkarte der Caribischen See und ihre tektonische Ausdeutung.: 

Petermanns Geog. Mitt., Jahrg. 93, Heft 4, p. 173-174, illus., 1949. The 

bathymetric chart of the Caribbean Sea, issued by the U. S. Hydrographic 

Office in 1939, contributes to an understanding of the structure, of the 

West-Indies Basin. Four tectonic units are distinguished: foreland, 

foredeep, Antillean orogenic zone, and inner basin. A similarity is 

observed with circum-Pacific tectonic zones, especially the Indian and 

Antarctic. A sketch map is given. V. S.

Weyl, Woldemar A.

Surface structure and crystal growth [abs.] : Geol. Soc. Am. Bull., v. 61, no. 

12, pt. 2, p. 1513, Dec. 1950.

Weyland, Hermann. See Krausel, R.

Wheeler, Everett P., 2d.

Massive leucoxene in Adirondack titanium deposit : Econ. Geology, v. 45, no. 6, 

p. 574-577, Sept.-Oct. 1950. "A series of minerals from hornblende to 

chlorite have filled cavities in anorthosite adjacent to a titaniferous magnetite deposit [Lake Sanford, New York] and associated with faulting. 

Ilmenite crystals formed early in the series and their outer portions were 

Subsequently altered to leucoxene of variable composition for a thickness of a centimeter."

Wheeler, G. V.

(and Burkhardt, W.). Semi-quantitative spectrographic analyses, in Analytical data on reference clay minerals : Am. Petrol. InSt. PrOJGCt 49, Clay

Mineral Standards, Prelim. Rpt. 7, p. 71-90, July 1950.

Wheeler, Harry Eugene.

1. (and others). Stratigraphic classification: Am. Assoc. Petrol. Geol. Bull., 

V. 34, no. 12, p. 2361-2365, Dec. 1950. "The existence of the previously 

proposed categories of rock, time-rock, and time Units IS accepted. Stage 

and zone, which are customarily classified as time-rock units, are 

blOStratigraphic or lithostratigraphic in character and therefore temporally tranSgreSSive. Because Of this fundamental difference, these

units are assigned to a new category, ttarcirtwie-rock. The operational 

unit sequence is amended and recommended.-

2. (and McNair, Andrew Hamilton). Late Tertiary thrusting in northeastern

Nevada [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1513-1514 Dec

1950.

Wheeler, Robert

1. (and Wallace, Louis S.). Significance Of world's deepest wen bore:

Internat. Geol. ConK.. 18th, Great Britain, Rpt. pt. 6, P. 15-23, lllUS., 1950; abs., Volume of titles ana abstracts, P. ^-^, ««. T^O Telidrilled by the Superior Oil Company to a total depul 01 1T,WO leet, 

penetrated 5,000 feet of Permian and more than 12,000 feet of Pennsylvanian rocks near the axis of the Anadarko Basin bordering the 

Wichita Mts. of western Oklahoma. The Stratigraphic and structural 

data are discussed.
BIBLIOGRAPHY 279

Wheeler, Robert Reid Continued

2. (and Swesnik, Kobert Malcolm). Stratigraphic convergence problems: 

World Oil, v. 130, no. 5, p. 57-60, 62, illus., Apr. 1950; abs., Internat. 

Geol. Gong., 18th, Great Britain, Rpt. pt. 6, p. 75,1950; Volume of titles 

and abstracts, p. 38, 1948. Examination of geologic factors involved in 

Stratigraphic convergence, and of respective terminology, shows that 

Stratigraphic oil traps can be more simply defined and mapped than 

currently believed, and that historical geology furnishes the best 

approach in developing techniques for their discovery. V. S.

3. Golden Trend of Oklahoma, current problems: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 6, p. 1287-1292, illus., June 1950. This article carries 

forward the discussion of several problems presented in R. M. Swesnik's 

"Golden Trend of south-central Oklahoma" (v. 34, p. 386-422, 1950), 

namely, oil accumulation in Deese sands, complex trapping aspects along 

a fault, pre-Viola deformation and convergence, and the relation of 

' accumulation to source beds. V. S.

4. Guadalupian folding and fades, trans-Pecos Texas and New Mexico [abs.]: 

Internat. Geol. Gong., 18th, Great Britain, Rpt. pt. 6, p. 74,1950; Volume 

of titles and abstracts, p. 38-39,1948.

5. Relation of Anadarko Basin movements to theory of contracting continents 

[abs.]: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 3, p. 618-619, Mar. 

1950. Orogenic movements during Paleozoic time on the north flank of 

the Anadarko Basin, having no counterpart in the south, are explained 

by differential crustal shortening in continental areas on a shrinking 

globe. The theory, accounting for the positive gravity anomaly in the 

Gulf, is discussed. V. S.

White, Donald Edward. See also Guiza, R., Jr.

1. (and Guiza, Reinaldo, Jr.). Antimony deposits of El Antimonio district, 

Sonora, Mexico: U. S. Geol. Survey Bull. 962-B, p. 81-119, illus, incl. 

geol. maps, 1949. El Antimonio district lies in the northwestern part 

of Estado de Sonora, about 25 miles east of the Gulf of California, and 

is one of the chief antimony producing areas. The antimony occurs both 

in veins following faults in Triassic strata, and in placers. The geology 

of the area, the mineral deposits, and the mines are described, and the 

reserves are calculated. Several geologic maps of various mines and 

areas are included.

2. (and Brannock, Walter Wallace). The sources of heat and water supply 

of thermal springs, with particular reference to Steamboat Springs, 

Nevada: Am. Geophys. Union Trans'., v. 31, no. 4, p. 566-574, illus., 

Aug. 1950; reprinted with modified title, Assoc. Internat. Hydrol. Sci., 

Assemblee Generate, Oslo, 1948, Comm. des Eaux Souterraines, Trav., 

p. 168-176, [1950?] ; abs., Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1534, 

Dec. 1950. Thermal sj>rings are classified as non-volcanic, intermediate, 

and volcanic on the basis of temperature relations, mineral content, 

associated gases, water levels, isotopic composition, and geology. Such 

evidence indicates that Steamboat Springs, Nevada, is volcanic. V. S.

White, George Willard.

1. Applied geology courses in the university: Ohio State Univ., Eng. Expt. 

Sta. News, v. 22, no. 2, p. 9, 25-27, Apr. 1950. Sets forth the usefulness 

of geology in various phases of engineering and briefly outlines a course 

for engineers.

2. Influence of Wisconsin glacial stages on soil-group boundaries in northeastern Ohio [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1574, 

Dec. 1950.

White, Maynard Pressly.

A fusulinid slide rule, in Symposium on fundamentals in paleontology: Jour. 

Paleontology, v. 24, no. 2, p. 123-129, illus., Mar. 1950. "An application 

of the natural laws of evolution, as shown by changes in wall structure 

and composition, arrangement of chambers, form of test, etc, considered 

in the order of their importance, points to a simple logical scheme 

covering the development of the fusulinids." Diagrammatic sketches 

show the evolution of the test.

White, V. L. See Thompson, Raymond M.
280 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

White, Walter Noy. See Lang, J. W.

White, Walter Stanley. See also Billings, M. P., 2.

(and Jahns, Richard Henry). Structure of central and east-central Vermont : 

Jour. Geology, v. 58, no. 3, p. 179-220, illus, incl. geol. maps, May 1950. 

The strata east of Jhe Green Mountains comprise a great thickness of 

steeply dipping, highly folded Paleozoic metasediments and metavolcanics. Structurally, an eastern, central, arid western tectonic belt can 

be distinguished. The formations are described, and geologic maps and 

sections are given. V. S.

White, William Alexander. See also Stuckey, J. L., 2.

Blue Ridge Front; a fault scarp: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 1, p. 

1309-1346, illus., Dec. 1950. Eyidence is presented pointing to a fault 

origin for the Blue Ridge scarp which extends from Georgia to northwestern New Jersey. Among the points considered are earlier theories 

of origin, the fault zone in North Carolina, South Carolina, and Georgia, 

lithologic and structural evidence of faulting, multiple-surface analysis 

of faulting, offsets, and, briefly, fault evidence in Virginia and areas 

to the north.

White, William H.

Plant anomalies related to some British Columbia ore deposits : Canadian 

Min. Met. Bull. no. 459, p. 368-371, illus., July 1950; Canadian Inst. 

Mining and Metallurgy Trans., v. 53, p. 243-246, 1950. Investigations 

Show that deposits containing Zn or Cu cast a "metal shadow" into the 

overlying soil that remains positioned regardless of overburden and 

ground water movement. The high content of Zn or Cu in trees within 

this area constitutes an anomaly which can be detected and plotted in 

the field. The field technique and characteristics of the anomalies are 

described.

Whitehead, Walter Lucius.

1. (and Breger, Irving A. ) . The origin of petroleum, effects of low temperature 

pyrolysis on the organic extract of a recent marine sediment : Science, v. 

Ill, no. 2883, p. 335-337, Mar. 31, 1950. Thermal analyses were made of 

the total organic extract, water-soluble fraction, and water-insoluble 

fraction of Cuban marine mud. at temperatures between 100-200 C to 

obtain data useful in the study of petroleum genesis. Results are given.

V. S.

2. (and Sullivan, Geraldine R.). Potassium content of marine sediments 

[abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1514, Dec. 1950.

Whitfield,RE. See Frondel, C., 4. 

Whitham, K. See Slack, H. A.

Whiting, F. H. See Ahrens, L,. H., 6.

Whitmore, Frank Clifford, Jr.

Sedimentary materials in military geology, i-n Applied sedimentation, T>. 635- 

655, lllUS., 1950. The applications of knowledge of sedimentation and

sedimentary materials to VariOUS phases Of military activity are described. Among these are traffica.bi.lity of a tei'l'ain, aVailaDUlty 01

water Supply and Construction materials, airneia suing and construction, and underground installations.

Whittington, Harry Blackmore. ' '

1. Sixteen Ordovician genotype trilobiteS: TOUT. Paleontology, V. 24, no. 5, 

p. 531-565, illus., Sept. 1950. Redescribes, with new illustrations, -the 

genotypes of Trtnodus, EncrinuroideS, Pterygometopw, Remopieunaes,

RoDergia, Bronteopsis, Styffina, RaymOndaSpiS, HomOtelUS, AmpyX, 

AmpyOnnd, I/0%CftO$(WW, Raphiopnorus, Ravmondella, and Tornquistia.

The true hypostome of PMllipsinella is redescribed, and tne genus placed 

in a new family, the Phillipsinellidae. v- S.

2. Two silicified Middle Ordovician trilobites [abs.] : Geol. Soc. Am. Bull., V. 

61, no. 12, pt. 2, p. 1514-1515, Dec. 1950.
BIBLIOGRAPHY 281

Wier, Charles E.

1. Geology and coal deposits of the Jasonville quadrangle, Clay, Greene, and 

Sullivan Counties, Indiana: U. S. Geol. Survey Coal Inv. Map C 1. Scale 

1 inch to 2000 feet. 1950. Descriptive notes on the Carboniferous 

stratigraphy, structure, and reserves accompany a geologic map, columnar section, and map of mined areas.

2. Coal in Indiana: Compass, v. 27, no. 4, p. 226-231, May 1950. The stratigraphic column of the Pennsylvanian coal-bearing formations in Indiana 

is given, and eight main coal beds are described briefly, with chemical 

analyses.

3. (and Wayne, William J., and Kottlowski, Frank Edward). Pennsylvanian 

of west central Indiana: Compass, v. 27, no. 4, p. 232-236, illus., May 

1950. Brief notes on a field trip to western Indiana coal localities, including a columnar section of the Pennsylvanian formations in the area 

visited.

Wier, Kenneth L.

Comparisons of some aeromagnetic profiles with ground magnetic profiles: 

Am. Geophys. Union Trans., v. 31, no. 2, pt. 1, p. 191-195, illus., Apr. 

1950. Discusses magnetic surveys and geologic conditions in the Iron 

River district, Michigan. The aeromagnetic profiles are much smoother 

than the ground magnetic profiles because of the merging and attenuation of anomalies with increasing height. Depth estimates from aeromagnetic data usually prove exaggerated. V. S.

Wiese, John Herbert.

1. (and others). Geology along the Electra and West Point tunnels, Amador 

County, California: Calif. Jour. Mines and Geology, v. 46, no. 1, p. 17-22, 

geol. sk. map, Jan. 1950. The igneous and metamorphic rocks, penetrated by the tunnels, and local faults, joints, and foliation are described 

in their relation to problems of tunnel construction. V. S.

2. Geology and mineral resources of the Neenach quadrangle, California: 

Calif. Dept. Nat. Res. Div. Mines Bull. 153, 53 p., illus. incl. geol. map, 

Mar. 1950. The Neenach quadrangle is located 60 miles northwest of 

Los Angeles. The pre-Cambrian (?) and Paleozoic (?) metamorphic 

complexes, Jurassic(?) intrusives, and Tertiary and Quaternary rocks 

are described. Faulting is prominent in the area. The Garlock faults 

and San Andreas fault zone are shown on the structure map of the 

quadrangle. Brief notes on the mineral deposits, particularly tin, are 

given.

3. (and Fine, Spencer Freeland). Structural features of western Antelope 

Valley, California: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 8, p. 1647- 

1658, illus. incl. geol. map, Aug. 1950. Describes Antelope Valley, in 

southern California, a wedge-shaped basin underlain by Tertiary marine 

and nonmarine sediments and volcanics, bounded by the Garlock and 

San Andreas fault zones, and broken into small, northwest tilted fault 

blocks. A geologic map and cross sections are given. V. S.

Wigglesworth, Edward, 1885-1945.

. Properties of gem varieties of minerals. Gemological Institute of America, 

541 South Alexandria, Los Angeles, California. 1948. Loose-leaf, ring 

binder file of cards giving physical properties of minerals used as gems. 

Data for more than 60 minerals are given.

Wilbert, Louis Joseph, Jr. See Murray, G. E., Jr., 1.

Wild, George 0.

Examination of pearls by X-ray: Mineralogist, v. 18, no. 6, p. 323-324, illus., 

June 1950. The technique of examining undrilled pearls by X-ray 

methods is described briefly and figured. It has been found that the 

nuclei of cultured pearls luminesce strongly while the shell does not.
282 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Wilgus, Wallace LaFetra.

The Elk City pool: World Oil, v. 130, no. 7, p. 123-124, 126, illus., June 1950. 

Briefly describes the stratigraphy and structure of the Elk City field in 

the Anadarko Basin of western Oklahoma. The structure is a narrow 

anticline about eight miles long, and production is obtained from the 

Missouri (Hoxbar) series of Pennsylvanian age at depths of 8,800-10,300 

feet.

Wilhelm, Clarence John.

(and Harris, H. M., and Harlin, M. N.). Petroleum-engineering study of the 

Carthage gas field, Panola County, Tex. : U. S. Bur. Mines Rpt. Inv. 

4698, 60 p. (t), illus., Aug. 1950. The Carthage field, Panola County, 

Texas, fourth largest gas reserve in the United States, produces mainly 

from three reservoirs in the Rodessa and Sligo limestone formations of 

Lower Cretaceous age. The local stratigraphy and reservoirs are described. The total gas reserve of the field is estimated at 7.604 trillion 

cubic feet. V. S.

Wilkinson, William Donald.

Welded tuff member of the Rattlesnake formation [abs.] : Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1534, Dec. 1950.

Willard, Bradford. See also Howell, B. F., 2.

1. How thick is a stratum?: Pa. Acad. Sci. Proc., v. 24, p. 188-189, 1950. A 

scale of thicknesses for the various terms used in descriptions of strata 

is proposed. Limits in mm, cm, and m are given for laminated, platy, 

flaggy, thin, medium, heavy, and massive.

2. Paleozoic continental phases of sedimentation in the northern Appalachians : 

Internat. Geol. Gong., 18th, Great Britain, Rpt. pt. 4, p. 29-37, illus., 

1950; abs., Volume of titles and abstracts, p. 23, 1948. "Continental 

phases of sedimentary rocks occur at intervals among the marine phases 

throughout the Paleozoic systems in the northern Appalachian Mts. and 

the Allegheny Plateau of the eastern United States. Their origin and 

recurrence during the existence of the Appalachian geosyncline are attributed to the cyclic nature of certain of the Paleozoic systems . . . ; 

diastrophic or orogenic movements . . . ; and repetitive climatic conditions."

3. Mapping Pennsylvania's geology : Pa. Dept. Internal Affairs Monthly Bull., 

V. 18, DO. 9, p. 4-8, Aug. 1950. An historical account of the progress of 

geologic mapping in the state.

4. (and Stevenson, Robert Evan). Northeastern Pennsylvania and Central

New York petroleum probabilities : Am. Assoc. Petrol. Geol. Bull., v. 34, 

NO. 12. p. 2269-2283, illus., Dec. 1950. The area of Paleozoic sediments,

comprising the Allegheny and Pocono plateaus in northeastern PeunSVlVanla and the adjacent area in New York, including the Catskm Mountains, is characterized by a major OrdOViCiail-SiluTian unconformity, 

minor discontinuities, facies shifts, folding, and potential souroe and

reservoir beds. These features suggest oil and gas possibilities, especially Ordovioian and Devonian. The stratigraphic sequences and structures are discussed, and columnar lists and sections are glVGn. V. S.

Williams, Alwyn.

StrOpheOdontid brachiopods: Washington Acad. Sci. Jour., v, 40, no 9 p

'

., , ,

277-282 illus Sept. 15, 1950. Describes two new genera of Mia'ciie 

Devonian stropheodontid brachiopods, HercostropMd and GlossostropMa

and Several SUbgenera, from t>otn North America and Europe.

"Williams, Enrique Ruiz.

flOtO UlinerO de JarahUeCa, en la Provlncia ae Las Villas, Cuba : Soc. Cuban a

Ing. Rev., V. 49, no. 8, P. 411-421, illUS. ind. geol. ak. map t ^ ^o. 

Brief discussion of the Cretaceous stratigraphy, geologic UlSlfry, tliiu 

economic geology Of the JarahUeca Oil ana gas region in central Cuba. 

Production statistics are given.
BIBLIOGRAPHY 283

Williams, Ernest.

Testudo cubensis and the evolution of western hemisphere tortoises: Am. Mus. 

Nat. History Bull., v: 95, art. 1, 36 p., illus., Mar. 30, 1950. Redefines 

and redescribes Testudo cu'bensis, with a discussion of the geological 

occurrence of the testudine fauna in Cuba, the interrelationships and 

nomenclature of western hemisphere testudines, and the phylogeny of 

the genus Testudo from the Tertiary to the present.

Williams, Harold L. Bee Kapner, H. H.

Williams, Howel.

1. Obituary, Prof. Bailey Willis [1857-1949]: Nature (London), v. 163, no. 

4144, p. 519-520, Apr. 2; 1949.

2. Geology of the Macdoel quadrangle: Calif. Dept. Nat. Res., Div. Mines, Bull. 

151, p. 7-60, illus. incl. geol. maps, Nov. 1949. Volcanics of the Western 

Cascade and High Cascade series (Tertiary-Recent) occupy most of 

the Macdoel quadrangle in northern California. Freshwater Eocene 

(Umpqua) sediments, resting on Upper Cretaceous (Chico) rocks, are 

believed to underlie the Shasta Valley. Stratigraphy, structure, petrology, and economic geology are described. V. S.

3. Volcanoes of the Paricutin region, Mexico: U. S. Geol. Survey Bull. 965-B, 

p. 165-279, illus. incl. geol. map, 1950. Report of an investgation of 

a 600 square mile area surrounding Paricutin Volcano to determine 

its relation to neighboring volcanic cones. Petrographic descriptions of 

the Tertiary and younger volcanics are given, together with 18 rock 

analyses. Numerous individual cones are described.

Williams, Marden Dean.

Tertiary stratigraphy of the Uinta Basin, in Petroleum geology of the Uinta 

Basin: Guidebook to the Geology of Utah, no. 5, p. 101-114, illus., 1950. 

The Tertiary strata of the Uinta Basin, Utah, comprise more than 9,000 

feet of continental sediments ranging from Paleocene to Oligocene or 

Miocene age. The Wasatch group, Green River formation, Uinta formation, and Duchesne River formation are described.

Willman, Harold Bowen. See Leighton, M..M., 2. 

Wilson, Alice Evelyn. See Satterly, J., 1, 2.

Wilson, Ben Hur.

Malaga, New Mexico, meteorite: Mineralogist, v. 18, no. 11, p. 512-514, illus., 

Nov. 1950. A brief description of a stony iron meteorite, collected in 

1933 from the area southeast of Carlsbad, New Mexico.

Wilson, Eldred Dewey. See also Hogue, W. G.

1. (and Roseveare, George H.). Arizona nonmetallics; a summary of past 

production and present operations : Ariz. Bur. Mines, Mineral Technology 

Ser. no. 42, Bull. 155, 2d ed., 60 p., Apr. 1949.

2. Arizona zinc and lead deposits; general features: Ariz. Bur. Mines Bull. 

156, Geol. Ser. 18, p. 7-17, illus., Apr. 1950. The main features of the 

geological occurrence of the zinc and lead deposits are summarized. 

Production data are given.

3. Arizona zinc and lead deposits; Pima district: Ariz. Bur. Mines Bull. 156, 

Geol. Ser. 18, p. 39-51, Apr. 1950. Stratigraphy, structure, and ore 

deposits are described, with notes on the San Xavier mine and several 

other smaller mines.

4. Arizona zinc and lead deposits; Aravaipa district: Ariz. Bur. Mines Bull. 

156, Geol. Ser. 18, p. 51-63, Apr. 1950. Describes the stratigraphy, 

structure, and ore deposits of the area, with notes on several mines.

5. Arizona zinc and lead deposits; Superior area: Ariz. Bur. Mines Bull. 156, 

Geol. Ser. 18, p. 84-98, illus. incl. geol. map, Apr. 1950. The rocks, 

structure, and mineralization are described. Notes on the Magma, Belmont, and Silver King mines are included.
284 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Wilson, Ivan Franklin.

(and Veytia, Mario). Geologla y yacimientos minerales de la regi6n manganesifera de Lucifer, al noroeste de Santa Rosalia, Baja California: 

Mexico Inst. Nac. Inv. Rec. Miner. Bol. 25, 68 p., illus. incl. geol. maps, 

1949. Spanish translation by Carl Fries, Jr., of U. S. Geol. Survey Bull. 

960-F, 1949. Describes the geology and manganese deposits of the 

Lucifer district, on the eastern coast of the Baja California peninsula. 

The country rock consists of Miocene, Pliocene, and Pleistocene volcanics 

and sediments. The ores are believed to have been formed by hydrothermal solutions, with deposition controlled by structure.

Wilson, James Lee.

1. An Upper Cambrian pleospongid (?) : Jour. Paleontology, v. 24, no. 5, p. 

591-593, illus., Sept. 1950. "A small pleospongid-type organism is described from two specimens from Upper Cambrian beds in Texas, a new 

genus and species being named. It is typified by an irregular canal 

system radially arranged from a central cavity." k

2. (and Frederickson, Edward Arthur, Jr.). The Jrvingetta major ("Ptychopleurites") faunizone of the Upper Cambrian: Am. Jour. Sci., v. 248, no. 

12, p. 891-902, illus., Dec. 1950. "The fauna of the 'Ptychopleurites zone' 

is reviewed and a new genus [Comanchia] erected for the trilobite 

Ptychopleurites amplooculata .Frederickson. The geographic and vertical position of this assemblage in the standard faunal sequence of the 

North American Upper Cambrian is discussed. It is proposed that the 

name of the time-stratigraphic unit characterized by this fauna be 

changed from Ptychopleurites zone to Irvingella major faunizone."

3. Upper Cambrian trilobites from the Welge sandstone, eastern Llano Uplift, 

Texas [abs.] : Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1515, Dec. 1950.

Wilson, John Andrew. See also Hibbard, C. W., 4.

1. Cope's types of fossil reptiles in the collection of the Bureau of Economic 

Geology, the University of Texas: Jour. Paleontology, v. 24, no. 1, p. 113- 

115, illus., Jan. 1950. The types listed are Palaeoctonus dumblianus, 

Phytosaurus supersciliosus, TestuAo hexagonata, and Testudo lauticaudattt. Illustrations are given of 3 bones of Episcoposarus haplocerus.

V. S.

2. A platysomicl from the Double Mountain group of Texas : Jour. Paleontology, 

V. 24, no. 3, p. 386-388, illus., May 1950. Reports the discovery of piatysomus, the first vertebrate to be found in the Blaine formation of the

Double Mountain group (Permian) in King County, Texas. The change

in habitat Of the North American platysomids from fresh water to marine is discussed and found to parallel changing climatic Conditions 

between the Penrisylvanian and Lower Triassic.

Wilson, John Tuzo. See also Scheidegger, A. E., 1.

1 An extension Of Lake's hypothesis concerning mountain and island arcs:

Nature (London), v. 164, no. 4160, p. 147-148, illus., July 23,1949. Lake's 

hypothesis that the poles of East Asiatic island festoons and of southern 

Asia mountain arcs lie on two great circles, can be extended to include 

the poles of island and mountain arcs formed since Jurassic time. The 

Only explanation SO far, that Of Lake, should be re-examined to determine

the extent of its application, and other possible explanations should

be considered. 

2. Recent applications of geophysical methods to the study of the Canadian

Shield: Am. Geophys. Union Trans., v. 31, no. 1, p. 101-114, iiius. mci.

geol. maps, Feb. 1950. A growth of continents by accretion of TOOtS Of 

marginal mountain ranges IS suggested by evidence from gravimetric,

aeromagnetic, radioactive, seismic, and geothernial studies Of the Shield, The investigations «ve outlined, including ,-ecent measurements of temperatures and pressures at which minerals were deposited ana studies

of the distribution of radioactive elements and isotope 1'atlOS. V. S.
.BIBLIOGRAPHY 285

Wilson, John Tuzo Continued

3. An analysis of the pattern and possible cause of young mountain ranges and 

island arcs: Geol. Assoc. Canada Proc., v. 3, p. 141-166, illus., Dec. 1950. 

"It is suggested that certain recent information upon the distribution 

and occurrence of earthquakes supports the view that contraction is the 

cause of mountain and island arcs. The arcs of the Mesozoic-Cenozoic 

orogenetic belts are classified into six types meeting in four kinds of 

junction. The arcs are described; the descriptions are discussed in connection with the contraction hypothesis, but are not dependent upon it."

4. An interpretation of some geological features in terms of the collapse of a 

contracting earth [abs.]: Royal Soc. Canada Proc., 3d ser., v. 44, p. 231, 

1950.

Wilson, Malcolm E., Jr. See Shepherd, G. F.

Wilson, Robert Warren.

Supposed primates from the Torrejon fauna of the Nacimiento formation 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1515-1516, Dec. 1950.

Wilson, Walter Byron, 1885-1951.

1. Reef definition: Am. Assoc. Petrol. Geol. Bull., v. 34, no. 2, p. 181, Feb. 1950; 

abs., Oil and Gas Jour., v. 47, no. 46, p. 108, Mar. 17, 1949. A reef is 

defined as a sedimentary rock aggregate composed of the remains of 

colonial-type organisms that lived near or below the surface of water 

bodies, mainly marine, and which developed relatively large vertical 

dimensions as compared with the proportions of adjacent sedimentary 

rocks. V. S.

2. Some aspects of petroleum migration [abs.]: Internat. Geol. Cong., 18th, 

Great Britain, Rpt. pt. 6, p. 25, 1950; Volume of titles and abstracts, 

p. 39, 1948. Discussion is appended to the abstract.

Wilson, William Jay. See Rich, J. L., 2.

Winchell, Horace.

Crystal orientation on the Weissenberg goniometer: Acta Crystallographica, 

v. 3, pt. 5, p. 396, illus., Sept. 1950. Describes a modification of Bunn's 

method which can be used for accurately adjusting a crystal zone axis 

on the Weissenberg goniometer.

Windes, Stephen L.

Physical properties of mine rock, Part 2: TJ. S. Bur. Mines Rpt. Inv. 4727, 

37 p. ($), Sept. 1950. "This report presents physical and petrographic 

properties of approximately 60 types of rock from operating mines or 

mineral-investigation projects and supplements [U. S. Bur. Mines] Report of Investigations 4459 [March 1949]. Source and geologic identi. 

fications are supplied for each rock type, and petrographic descriptions 

are given in detail."

Winslow, A. G. See Lang, J. W.

Wisser, Edward Hollister.

1. Tomorrow's ore: Min. Cong. Jour., v. 36, no. 1, p. 26-32, 42, illus., Jan. 1950. 

The existence, possibilities of discovery, and methods of tracing ore 

deposits hidden by postmineral rock cappings are discussed. Systematic 

exploration should be based on a geologic study of the characteristics of 

caprocks. A discussion by 4 geologists follows. . V. S.

2. "Nevadan" "Laramide" Tertiary upheaval and related ore deposits 

[abs.]: Econ. Geology, v. 45, no. 4, p. 386-387, June-July 1950.

Wolfe, Caleb Wroe. See also Ramsdell, L. S., 1.

This earth of "ours past and present, x, 374 p., illus. Revere, Mass. Earth 

Science Publishing Co. 1950. Textbook, with emphasis on the unsolved 

problems such as origin of the ea-rth, nature of evolution, and causes of 

orogeny, glaciation and metainorphism.

980682° 52 19
286 ANNOTATED BIBLIOGRAP-HY OF NORTH AMERICAN GEOLOGY, 1950

Womack, Robert, Jr.

Brookhaven oil field, Lincoln County, Mississippi: Am. Assoc. Petrol. Geol. 

Bull., v. 34, no. 7, p. 1517-1529, illus., July 1950; abs., v. 33, no. 12, 

p. 2069, Dec. 1949; Oil and Gas Jour., v. 48, no. 25, p. 88, Oct. 27, 1949. 

The Brookhaven oil field, Mississippi, is on an anticlinal structure 

crossed by 3 normal faults forming a central graben. Oil is produced 

from the Tuscaloosa formation of Upper Cretaceous age, accumulation 

being controlled by structure and the lenticular!ty of the producing sands. 

A columnar section and structural and isopach maps are given. V. S.

Wood, Albert Elmer.

Porcupines, paleogeography, and parallelism: Evolution, v. 4, no. 1, p. 87-98, 

illus., Mar. 1950. The widespread distribution of hystricomorphs in 

South America throughout most of the Tertiary, their absence in North 

America until very recently, and their similarity to African forms, 

explained formerly (rather unsatisfactorily) by continental drift, land 

bridges, or trans-oceanic floating, are considered the result of parallel 

development.

Wood, E. Boyne. See Nelson, V. B.

Wood, Gordon H., Jr. See Read, C. B., 2, 3.

Wood, Hiram B. See Holdredge, C. P., 1, 2.

Wood, William H. See also McLaughlin, K. P., 2.

(and Jizba, Zdenek V.). Effects of grain elongation on fabric diagrams [abs.]: 

Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1534-1535, Dec. 1950.

Woodbury, Homer Olivin.

Snider Basin area, Sublette County, Wyoming: Wyo. Geol. Assoc. Guidebook, 

Southwest Wyoming, p. 122, illus. facing p. 120, 1950. A very brief note 

on the Mesozoic strata and the structure in the Snider Basin area, Wyoming, accompanied by a cross section.

Woodring, Wendell Phillips.

(and Bramlette, Milton Nunn). Geology and paleontology of the Santa Maria 

district, California: U. S. Geol. Survey Prof. Paper 222, 185 p., illus. 

incl. geol. map, 1950. A comprehensive report on the Santa Maria district, Santa Barbara County, southern California. Jurassic, Miocene, 

Pliocene, and Pleistocene strata are described and correlated. Foraminifera, echinoids, gastropods, pelecypods, and other fossils are described. 

The geologic history is interpreted. The area has been an oil producer 

Since 1901; brief descriptions of the fields and notes on potential production in undeveloped areas are included.

Woodward, Herbert Preston.

1. Cambrian system of West Virginia (with comments on older rocks and 

igneous dikes) : W. Va. Geol. Survey [Rpt.], v. 20, 317 p., iiius. inci. geol. 

sketch maps, 1949. This volume is the third in a series covering the 

geologic systems of West Virginia. Those dealing with the Silurian and 

Devonian were published in 1941 and 1943, and that on the Ordovioian 

is in press. The occurrence and distribution of Cambrian strata are 

described in detail, with numerous sections and photographs. A Section 

on the economic products of Cambrian rocks is included. An extensive 

bibliography is given. 2. Appalachian stratigraphic nomenclature [abs.]: Am. Assoc. Petrol. Geol.

Bull., V. 34, no. 8, p. 1771-1772, A.ug. 19OO.

Workman, Lewis Edwin.

1. The Neda formation in northeastern Illinois: 111. State Aca'd. Sci. TranS., V.

43, p. 176-182, illus., 1950; 111. State Geol. Survey Circ. rro, 1951. Discusses the occurrence, composition, and geologic history of the NedS 

OOlitiC iron formatiOD. Tile Stratum OCCUrs in outcrops along the Kankakee River and is penetrated by wells northwest of Chicago. The 

results of insoluble residue studies are reported.
BIBLIOGRAPHY 287

Workman, Lewis Edwin Continued

2. (and Swann, David Henry, and Atherton, Elwood). Summary of stratigraphy shown in geologic cross-section of Illinois basin: 111. State Geol. 

Survey Circ. 160, 18 p. ($), illus., 1950. Strata ranging from pre-Cambrian to Pleistocene, encountered in wells in southeastern Illinois, are 

described briefly on the basis of sample and electric-log data and are 

shown in a cross section. V. S.

Wormington, Hannah Marie.

Ancient man in North America. 198 p., illus., 3d ed. revised. Denver, Colorado. 

Denver Museum of Natural History, Popular series no. 4, 1949. Chapter headings include the stone industries, areal survey, human skeletal 

remains, and the first peopling of North America. A glossary and 

bibliography are included, together with an appendix by E. Antevs on 

the "Geology of the Clovis sites."

Worzel, John Lamar. See Ewing, W. M., 2,3.

Wrather, William Embry.

Memorial to Donald Francis MacDonald [1875-1942]: Geol. Soc. Am. Proc. 

1949, p. 197-200, port., June 1950.

Wright, Claud William.

1. Illegitimate "corrections" of orthography of generic names: Jour. Paleontology, v. 24, no. 4, p. 506, July 1950. Points out that, according to the 

Rules of Zoological Nomenclature, etymologically wrong names are 

nevertheless correct nomenclaturally. V. S.

2. Paleontologic classification: Jour. Paleontology, v. 24, no. 6, p. 746-748, 

Nov. 1950. Discussion of the paper of the same title by J. M. Weller, 

Jour. Paleontology, v. 23, no. 6, p. 680-690, Nov. 1949.

Wright, Dorothy. See Cohee, G. V.

Wright, Grant M.

Ghost Lake map-area, Northwest Territories (report and map) : Canada Geol. 

Survey Paper 50-13, 10 p. (t), geol. map, 1950. The Ghost Lake maparea, north of Great Slave Lake, Northwest Territories, contains granitic, volcanic, and sedimentary and metamorphic rocks of pre-Cambrian 

age. . The rocks are mapped and described briefly, with attention to 

structure and economic possibilities. V. S.

Wright, Lauren Albert. See also Campbell, I., 3.

1. California talcs: Min. Eng., v. 187, no. 1, p. 122-128, illus., Jan. 1950; A. I. 

M. E. Trans., v 187, 1950. The talc resources of California occur in a 

northwest trending belt in San Bernarclino and Inyo Counties along the 

Nevada border. Four contrasting areas, in which the deposits are 

geologically similar, can be distinguished. The Silver Lake mine, Western mine, and Talc City mine, representative respectively of the Silver 

Lake, Death Valley, and Inyo Range areas are described. The fourth 

area, Oasis-Palmetto in Esmeralda County, Nevada, is mentioned briefly.

2. Geology of the Silver Lake talc area, San Bernardino County, California 

[abs.]: Am. Mineralogist, v. 35, nos: 3-4, p. 291, Mar-Apr. 1950.

Wright, Leo M.

Some geological problems of northeastern Oklahoma: Okla. Acad. Sci. Proc!, 

v. 29 (1948), p. 39-41, Mar. 1950. The extent and thinning of the Atoka 

formation (Pennsylvanian) is being checked by investigation of the 

microfossil and heavy mineral content of several other rock units in 

northeastern Oklahoma, particularly the Spaniard limestone and Warner 

sandstone, with a view to possible petroleum occurrence. A columnar 

section for northeastern and southern Oklahoma is given.
Wright, Robert James. See also Kerr, P. F., 2; Thurlow, E. E.

Current status of atomic raw materials: Earth Sci. Digest, v. 4, no. 12, p. 3-8, 

illus., July 1950; Pt. 2, v. 5, no. 1, p. 3-10, illus., Aug. 1950. Recent discoveries of primary uranium ores in Canada and the United States are 

reviewed, and the use of-secondary uranium minerals in exploration for 

primary ores is noted. The utilization of uranium bearing sedimentary 

rocks as a future source of uranium is discussed.

Wyant, Robert Kriss. See Roy, S. K., 1, 2. 

Wyllie, M. R. J. See Rose, W. D. 

Wynn,W.O.R. See Stacey, F. R. 

Wynn, W. Turner. See Ellison, S. P., Jr., 1.

Wyoming Geological Association.

1. Fifth annual field conference guidebook, Southwest Wyoming, August 8-11, 

1950. 196 p., illus., 1950. The guidebook contains, in addition to papers 

and maps which are cited under the individual authors, road logs, a 

physiographic diagram, a stratigraphic nomenclature chart, various cross 

sections of wells and tunnels, a tentative correlation chart, radioactivity logs, and other miscellaneous data.

2. Penetration chart.of important oil and gas fields in southwestern Wyoming: 

Wyo. Geol. Assoc. Guidebook, Southwest Wyoming, facing p. 102, 1950. 

Formations penetrated, producing zones, and other pertinent data are 

given in tabular form for oil and gas fields in the Rawlins uplift, Great 

Divide-Washakie Basins, Rock Springs uplift, and Green River Basin.

3. Wyoming correlations; Penetration chart for Julesburg, Hanna, and Laraniie 

Basin: Oil and Gas Jour., v. 49, no. 29, p. 76, Nov. 23, 1950. One of a 

series of charts compiled by a committee of the Wyoming Geological 

Association showing formations penetrated by producing wells, and the 

oil- and gas-producing zones.

Yen, Teng-Chien.

A molluscan fauna from the type section of the Truckee formation: Am. Jour. 

Sci., v. 248, no. 3, p. 180-193, illus., Mar. 1950. "Nineteen species and 

subspecies of freshwater mollusks are recorded from a saccharoidal limestone bed in Nevada. Previous records of the same formation exposed 

in this and its neighboring localities are reviewed. One genus and eight 

species and subspecies are herein described as new. This assemblage

of i:uoll uscaii species seems to indicate a I'lioeene age of its enclosing

rocks; it also indicates possibly a large size for the extinct body of water,

bordered in part by muddy and in part by rocky shores : and the former 

existence of a rich growth of aquatic vegetation in the water."

Yodcr, Hatten Schuyler, Jr.

1. The jadeite problem, rts. 1-2: Am. Jour. Sci., v. 218, no. 4, p. 225-248, no. 5,

p. 312-334, illus., Apr.-May 1950; abs., Geol. Soc. Am. Bull., v. 60, no. 12,

I>t. 2, p. 1933, Dec. 1O4O ; -A.m. Mineralegist, v. 35, nos. 3 4, p. 2O1 2O2,

Mar.-Apr. 1950. New data, redefining the probable stability range of

jacleite, are presented concerning its structure, temperature of formation,

and associations. The evidence indicates that the problem is distinct

from that of eclogites. A bibliography is included, V. S.

2. Stability relations of grossularite: Jour. Geology, v. 58, no. 3, p. 221-253,

illus., May 195O; abs., Geol. Soc. Am. Bull., v. 58, no. 12, pt. 2, p. 1242-1243,

Dec. 1947; Am. Mineralogist, v. 33, nos. 3-4, p. 211, Mar.-Apr. 1948.

The stability range of grossularite garnet was investigated in its dependence on temperature, pressure, stress, and composition by experiments to verify theories of the origin of garnet. Results suggest

formation by the i-eaction of components in the solid state, with pressure 

a favorable but not indispensable factor. V, S,

3. High-low quartz inversion up to 10,000 bars: Am. Geophys. Union Trans., 

v. 31, no. 6, p. 827-835, illus., Dec. 1950. "The high-low quartz inversion 

temperature has been measured up to 10,000 bars. The relation of 

change of the inversion temperature with pressure to earth-structure 

problems is discussed. Apparatus which has a working range up to 

1400° C and 10,000 bars is described."
BIBLIOGRAPHY 289

Yoder, Hatten Schuyler, Jr. Continued

4. (and Keith, Mackenzie Lawrence). Complete substitution of aluminum for 

silicon; the system 3MnO.Al203.3Si02-3Y203.5Al2 03 [abs.]: Geol. Soc. 

Am. Bull., v. 61, no. 12, pt. 2, p. 1516-1517, Dec. 1950.

Young, Earl B.

The Pioche district, in Dunham, K. C., ed., Symposium on ... lead and zinc: 

Internat. Geol. Gong., 18th, Great Britain, Rpt. pt. 7, p. 111-120, illus. 

incl. geol. maps, 1950; abs., Volume of titles and abstracts, p. 51, 1948. 

Lead-zinc ores in the Pioche district, Nevada, occur as sulflde replacements of Cambrian limestone, veins in quartzite, and replacement veins 

in limestone. The stratigraphy, structure, and mineralization of the 

area are described.

Young, R. 0. See Barr, K. W.

Youngquist, Walter Lewellyn. See also Downs, H. R.

1. (and Miller, Arthur K., and Downs, Harold Robert). Burlington conodonts 

from Iowa: Jour. Paleontology, v. 24, no. 5, p. 525-530, illus., Sept. 1950. 

Describes and illustrates 18 species of conodonts of post-Kinderhookian 

Mississippian age, from a thin shale bed in the upper Burlington limestone near Cotter, southeastern Iowa. V. S.

2. (and Nielsen, Merrill L., and Miller, Arthur K.). Mississippian cephalopods 

from western Utah [abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, 

p. 1542, Dec. 1950.

Yiingiil, Sulhi.

Interpretation of spontaneous polarization anomalies caused by spheroidal ore 

bodies: Geophysics, v. 15, no. 2, p. 237-246, illus., Apr. 1950. A graphical 

method is given for determining the location, depth, and dip of polarized 

spheroidal ore bodies from equipotential lines of field data. Underlying 

theoretical considerations and topographic and regional corrections are 

discussed, and application is illustrated by examples. V. S.

Yzaguirre, Lauro A.

Estudio de la estructura de Reynosa con especial referenda a la lenticularidad 

de las arenas: Asoc. Mex. Geol. Petrol. Bol., v. 2, no. 9, p. 537-548, illus., 

Sept. 1950. The stratigraphy and structure of the Reynosa oil field, 

Tamaulipas, northeastern Mexico, are described with special reference 

to the'lenticular character of the sands.

Zakis, William N.

Geology of the east flank of the Bighorn Mountains near Dayton, Wyoming 

[abs.]: Geol. Soc. Am. Bull., v. 61, no. 12, pt. 2, p. 1560, Dec. 1950.

Zapffe, Carl, 1880-1950.

A review, iron bearing deposits in Washington, Oregon, and Idaho: Raw 

Materials Survey, Resource Rpt. 5, 89 p., illus., Aug. 1949. The geology, 

composition, properties, and origin of eighteen iron-bearing deposits in 

Washington, Oregon, and Idaho are described. The deposits are small 

and contain highly varied specialty ores requiring adapted smelting 

processes. V. S.

Zapp, Alfred Dexter. See Read, C. B., 2, 3.

Zeller, Edward J.

Stratigraphic significance of Mississippian endothyroid Foraminifera: Kans. 

Univ. Paleont. Contr. no. 7, Protozoa, art. 4, 23 p., illus., Feb. 24, 1950. 

Extensive studies of Mississippian limestones, chiefly in the Mississippi 

Valley, indicate the wide distribution and also the differences in the 

forms included in the genus Endothyra. A new genus, Plectogyra, is 

set up for endothyroid forms that are not planispiral. The Stratigraphic 

distribution and phylogenetic development of endothyroid forms are 

discussed.

Zerfoss, Samuel.

Mechanism of veil formation in crystals [abs.]: Geol. Soc. Am. Bull., v. 61, 

no. 12, pt. 2; p. 1517, Dec. 1950.
290 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

ZoBell, Claude E.

1. Bacterial activities and the origin of oil: World Oil, v. 130, no. 7, p. 128-129, 

132, 134, 136, 138, illus., June 1950; Petroleos Mexicanos, no. 83, p. 61- 

76, illus., July 1950. "Bacteria are responsible for the first steps in 

formation of petroleum from organic matter deposits in marine sediments, the extent and manner-of the microbial modification depending 

on environmental conditions. Other mechanisms also contribute to the 

process, including catalysts, pressure, and base exchange reactions." 

The article elaborates these points, and summarizes present information.

2. Annotated bibliography on the ecology of marine bacteria: Natl. Research 

Council, Report of the Committee on a treatise on marine ecology and 

paleoecology, 1949-1950, no. 10, p. 31-54, Nov. 1950.

Zodac, Peter.

1. Minerals of the Brooklyn-Battery tunnel: Rocks and Minerals, v. 25, nos. 

5-6, p. 266-267, May-June 1950. Among the minerals found during the 

excavation of the Brooklyn-Battery tunnel, New York City, were quartz, 

feldspar, mica, serpentine, garnet, kyanite, chromite, pyrite, tourmaline, 

and molybdenite.

2. New Jersey brook, a carnelian locality: Rocks and Minerals, v. 25, nos. 9-10, 

p. 481-483, Sept.-Oct. 1950. Reports the occurrence and collecting of 

carnelian and associated minerals from a brook gravel near South 

Stirling, Somerset County, New Jersey.

Zuidema, Henry Peter.

A new fossil insect and plant locality in Montana: Mich. Acad. Sci. Papers, 

v. 34 (1948), p. 119-123, illus., 1950. Describes the Tertiary (Miocene?) 

strata in the vicinity of the Ruby River, southwestern Montana, in 

which plant and insect remains have been found. Tentative identification of more than 200 insect specimens shows 9 orders to be represented. 

Plant fragments of Ailanthus and Sequoia have been identified.

Zulberti, J. L. See Barger, R. M.

Zumberge, James Herbert.

Origin of bedrock lakes in northeastern Minnesota [abs.]: Geol. Soc. Am. Bull., 

v. 61, no. 12, pt. 2, p. 1517, Dec. 1950.

Zworykin, Elaine V. See Murata, K. J. .

Anonymous.

1. Benitoite, California's exclusive gem: Mineralogist, v. 18, no. 11, p. 552, 

554, 556, Nov. 1950. A brief description of the properties of benitoite.

2 Dr George S. Rice [1866-1950]: Canadian Min. Jour., v. 71, no. 2, p. 131, 

Feb. 1950.

3. Earthquake patterns: Engineering and Science, v. 13, no. 9, p. 6-7, illus., 

June 1950. Brief report of the research of Dr. Hugo Benioff at the 

California institute of Technology Seismological Laboratory on shallow earthquakes.

4. General bibliography of Idaho's mineral reSOUrCCS ; DlSt Ann. Rpt., Mining 

Industry of the State of Idaho for 1949, p. 63-93 [1950] ; 52d Ann Rpt

1950, p. 87-116 [1951].

s. Geology as a career: Frontiers, V. 14, DO. 3, p. 98-94, Feb. 1950 Reprint of 

"Careers in geology," Eng. Min. .Tour., v. 149, no. 10, p. 95-98,' lllUS., UCt. 

1948.

6. Many geologic ages provide world's oil: Flying Red HorSG, V. 16, DO. 3, P. &-

10, illUS., Summer 19oO. A. popular account of the occurrence of oil with particular reference to the Pegasus new m Texas, for which a columnar

section is given.

7. PrOSpeCting Witll the airborne magnetometer : Western Miner, v. 23, no. 12,

P. 56, 58, 60, illus., Dec. 1950. Describes the instrumentation ana operation Of the airborne magnetometer, the preparation of*> a map f rODl

the recorded data, and the application of the map to geologic problems.

8. Underground eye: Flying Red Horse, v. 16, no. 2, p. 18-21, 31, illus., Apr. 

1950. A popular account of radioactivity well logging in petroleum exploration.
INDEX

[The numbers refer to entries in the bibliography]

Addresses.

Freedom and petroleum geology : Tomlinson, C. W. 2

Genetics of mineral deposits: Ebbutt 

Index fossils : Stephenson, L. W. 

Megatectonics and geophysics : Bucher 2 

Mineral deposits of Idaho : Hulin 

Mineralogy, a science and hobby:

Meen 1 

Research in the mineral .industries:

McLaughlin, D. H. 1 

Roebling Medal acceptance : Merwin 

Roebling Medal presentation : .Bowen 1 

Search for new mining districts: Nolan 

Silicates and their reaction energies:

Gruner

State of seismic prospecting: Gilmour 

Stratigraphy and study of metamorphic

rocks : Billings 1

Tectonic theory, Basin Ranges: Longwell 1

Aerial photography. See also Photogeology. 

Alaska Highway, terrain study : Raup 

Application to petroleum exploration :

Brundall 

Dip estimation, graphic method : Miller,

V. C. 1

Drainage pattern analysis, soils identification : Parvis

Geological exploration : Gray, A. L. 

Landform interpretation, work of U. S.

Navy : Truesdell 2 

Oil exploration : Bench 

Permafrost interpretation : Frost, R. E. 

University of Illinois collection of

photographs : Wanless 2, -3 

Use in interpreting vegetation patterns :

Sigafoos

Use in subarctic regions : Benninghoff 1 

Agates.

Washington, Forest: Powell, R. D. 

Wyoming, Sweetwater, radioactivity:

Buddhue 3

Age of the earth. See Geologic time. 

Alabama.

Tennessee Valley engineering projects,

geology : Tenn. Valley Authority 

Economic geology.

Natural gas : Jones, W. B. 1 

Petroleum : Jones, W. B. 1, 2 

Tin, Coosa County : Reed, A. H. 

Geologic maps.

Coastal area : Carlston 1

Eastern, Selma group, Cretaceous:

Eargle

Alabama Continued

Geologic maps Continued 

General: LaMoreaux 1 

Index : Boardman 1 

Madison County : LaMoreaux 2 

Ground water.

Fluoride content: LaMoreaux 3 

Huntsville area : LaMoreaux 2 

Tennessee Valley area : LaMoreaux 1 

Historical geology.

Eastern, Selma group, Cretaceous:

Eargle 

Huntsville area, Carboniferous:

LaMoreaux 2 

Paleontology.

Ostracoda, Little Stave Creek, Gosport

formation, Eocene: Blake, D. B. 

Physical geology.

Sequatchie anticline, thrust origin:

Rodgers 1 

Physiographic geology.

Coastal area, Pleistocene : Carlston 1 

Alaska.

Aerial -photography : Benninghoff 1

In vegetation interpretation : Sigafooa 

Brooks Range area, pre-historic man :

Solecki 

Geophysical exploration, 1949: Miller,

R. L. 2

 St. Elias Range, bedrock : Oclell 1, 2 

Taku Glacier, geophysical study : Poulter 3

Seismic measurements : Poulter 1 

Economic geology.

Copper, Prince William Sound district:

Mofflt 1

Garnets, Wrangell area: Bressler 

Petroleum : Ver Wiebe

Exploration, 1949 : Miller, R. L. 2 

Geologic maps.

Prince William Sound district: Moffit 1 

Wrangell district: Bressler 

Wrangell garnet mine : Bressler 

Historical geology.

Brooks Range, Mississippian : Bowsher 

Cape Kaguyak, Lower Cretaceous : Hazzard 2 

Kamishak Bay area : Hazzard 4

Cretaceous: Hazzard 1 

Mineralogy.

Garnets, Wrangell area : Bressler 

Paleontology.

Cephalopods, Kamishak Bay area, Cretaceous : Hazzard 1

291
292 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Alaska Continued 

Petrology.

Katmai eruption, pumice : Fenner 

Physical geology.

Earthquakes, 1939-48 : Merrell 

Glacier ice, air bubbles in, Malaspina

Glacier: Bader 

Katmai eruption, chemical kinetics:

Fenner 

Permafrost: Frost, R. B.

Fairbanks area : Pewe 2 

Silt, Fairbanks area, eolian origin:

Pewe 1 

Volcanism, Aleutian arc : Coats

Physiographic geology.

Glaciers,'aerial survey: Miller, M. M. 2 

Variation : Matthes 1

1935-1947 : Field, W. 0. 

Juneau Ice Field, glacier fluctuation:

Lawrence

Seward Peninsula, frost action and

vegetation patterns : Hopkins, D. M.

Southern, physiographic history : Wahrhaftig 

Alberta.

Seismic prospecting: Tellington 

Economic geology.

Athabaska tar sands : Link, T. A. 7 

Bituminous sands : Hume 

Coal: MacKay 1

Alexo area: Erdman 

Daniels Flats area : Irish 

Saunders area: Erdman 

Leduc oil field, reef zone, porosity:

Waring 

Natural gas: Link, T. A. 5

Ouiium Croek man-area: Douglas 1

Gap map-area : Douglas 1

Langford Creek map-area : Douglas 1

. Petroleum: Link,' T. A. 5

Oaiium Creek map-area: Douglas 1 

Gap map-area: Douglas i

Geophysical prosoecting \ Bartlielmes

Joseph L.alce tielil. Cret,i.c<-oi]» - H.iT^t

C, W. 2

Langford Creek map-area: Douglas 1

Lefluc field : Hopkins, O. B. 1

Lloydminster area : Coons 

Red water oil field : Hancock 

Stettler field : Lockwood. R. P. 

Turner Valley field: Galliip

Whitemud field : Hunt, C. W. 1 

Geologic maps.

Alexo area: Erdman

Callum Creek map-area : Douglas 1

Coal areas: MacKay i 

Gap map-area: Douglas 1

Laiisrf ortl Creek map-area : Douglas 1

Mount Head area : Douglas 2

Saunders area: Erdman 

Alexo area : Erdman 

Banff area, Paleozoic sections : Beales 

Historical geology.

Bituminous sand area : Hume 

Callum Creek map-area: Douglas 1 

Cretaceous: Russell, L. S. 2 

Daniels Flats area, Cretaceous: Irish

Alberta Continued

Historical geology Continued

Devonian. Crowsnest Pass-Jasper area :

cleWit 

Edinonton area, Devonian : Imperial Oil,

Ltd.

Gap map-area: Douglas 1 

Joseph Lake oil field, Cretaceous : Hunt.

C. W. 2

Langford Creek map-area: Douglas 1 

Mount Head area : Douglas 2

Paleozoic sections : Beales 

Saunders area: Erdman 

Sunwapta Pass area, Paleozoic : Severson

Tertiary: Russell, L. S. 2 

Whitemud oil field, Cretaceous: Hunt,

C. W. 1 

Paleontology.

Alexo area, faunal list: Erdman 

Brachiopoda, Devonian : Crickmay 

Crowsnest Pass-Jasper area, Devonian :

deWit

Leptoceratops: Sternberg 2 

.Reptilia, Upper Cretaceous : Sternberg 1 

Saunders area, faunal list: Erdman 

Sunwapta Pass area, Devonian : Severson 

Physical geology.

Alexo area, structure : Erdman 

Callum Creek map-area : Douglas 1 

Gap map-area: Douglas 1 

Langford Creek map-area : Douglas 1 

Saunders area, structure : Erdman 

Algae.

Girvanella, Texas, Permian : Johnson,

J. H.

Microscopic study : Onsclnl 

Pennsylvania, stromatolites, Cambrian : 

Howell, B. F. 2

Texas, Andrews County, trocliiliscids:

Ellison, g. P. 1 

Algonkian. See Pre-Cambrian.

Ailn^al fan.

California, La .Tolln : Carter, ct. ir.

Alluvium.

Oklahoma, Deep Fork of North Canadian

River : Harper, I-I. J.

Alteration.

Arizona, Bagdad copper deposit: Anderson, C. A. 3

Colorado, volcanic areas : Burbank 1

Montana, Bntte ore deposit : Snlcs 1 

Rock : Bowditcli ; Burbank 2 ; Butler, B. 

S. 2, 3 ; Kerr, P. F. 1; Kosclinmnn 

2 ; Lasky, S. G. 3 ; Levering 3 ;

Sales 2; Schmitt 2; stringnam i ;

Vanderwilt

Geochemistry : Covering 2

Yolcanic areas : Burbank l 

Alunite.

Thermochemical changes: Gad 

Amethyst. See Gems and gem materials. 

Ammonoidea. See Cephalopoda. 

Amphibia.

Greenland, East, stegocephalians : Jarvik 1
INDEX 293

Amphibia Continued

 Illinois, Mazon Creek nodules, Pennsylvanian : Gregory, J. T. 1

Microsauria, Paleozoic: Romer 2 

Amphlbole.

Synthetic, Isomorphism: Comeforo 

Analyses.

Clay : Kerr, P. F. 4

Marl, Quebec : Waddington 2 

Anthozoa.

Favoaitea proximatua, new name: 

Stumm 2

Mexico, Gulf of California Islands : Durham 1 

Lower California : Durham 1

Missouri, Plattin limestone, commensalism with bryozoan : Fischer, A. G.

North America, Tryplasma, Silurian, occurrence : Stumm 4

Ordovician, classification: Bassler 2

Paleozoic, reference lists : Bassler 2

Tabulata, Devonian, types: Stumm 1

Vermont, Montpelier area, Ordovician :

Cady, W. M. 1 

Anticlines.

Appalachian region, depth : Straley 2

New Brunswick geanticline: Hutchinson, R. D.

Sequatchie anticline, Tennessee: Roclgers 1 

Antimony.

California, Stayton district: Bailey, 

E. H.

Canada: McClelland

Mexico, Antimonio district, Sonora: 

Guiza; White, D. E. 1

Oxides : Mason, B. H. 1 

Appalachian Basin.

Subsurface stratigraphic sections:

Fettke 3 

Appalachians.

Anticlines, depth : Straley 2

Blue Ridge Front, fault scarp : White, 

W. A.

Cyclic sedimentation, Paleozoic : Willard 

2

Deformation study: Gair

Great Smoky Mtn. region, North Carolina-Tennessee, geologic history: 

King, P. B. 1, 2

Red beds, relation to oil occurrence: 

Rittenhouse

Salt: Ames "

Sequatchie anticline, thrust origin: 

Rodgers 1

Stratigraphic nomenclature: Woodward 

2

Tectonics, southeastern United States : 

King, P. B. 3

Thrusts, folded, southern Appalachians : 

Stose 3

Transverse streams : Carlston 3

Virginia, Blue Ridge province, Cambrian-pre-Cambrian : Bloomer 2 

Apparatus.

Amplifier for differential thermal analysis : Beck, C. W. 2

Apparatus Continued

Geiger counter, high-speed : Rohrer 

Instrument for grinding parallel sections : Croft

Microscope for infrared light: Bailly 2 

Refractometer for infrared light: Bailly

2 .

Rock Impregnation : Munyan 

Seismograph : Robertson, F. 

Seismograph system, single boat.: Paslay 

Aquifer. See Ground water. 

Arachnida.

British Columbia, Seymour River lignlte, fossil spider silk: Pierce, 

W. D. 2 

Onychothelyphonus, new genus : Pierce,

W. D. 5

Archean. See Pre-Cambriari. 

Arctic America.

Alaska, Brooks Range area : Solecki v' 

Axel Heiberg Island, geologic map:

Troelsen 2

Stratigraphy : Troelsen 2 

Baffin Island, Barnes Ice Cap, ice data:

Ward, W. H.

Gem localities: Field, D. S. M. 3 

Geomorphology : Goldthwait 2 

Metamorphic rocks : Kranck 

Devon Island, Dundas Harbour area,

stratigraphy : Kurtz 

Ellesmere Island, geologic map : Troelsen 2

Stratigraphy: Troelsen 2 

' Mackenzie Delta region, postglacial submergence : Richards, H. G. 1, 2 

Arizona.

Barringer meteorite crater :.Rinehart 

Boulder Canyon area, engineering geology : U. S. Bur. Reclamation 

Economic geology.

Copper, Bagdad deposit: Anderson, C. A.

3

Emerald Isle: Searls

San Manuel deposit, dispersion pattern : Lovering 4 

Lead : Wilson, E. D. 2

Aravaipa district: Wilson, E. D. 4

Bagdad area : Anderson, C. A. 1

Bisbee district: Hogue

Globe-Miami district: Peterson, N. P.

Iron King area : Creasey 2

Johnson Camp area : Cooper, J. R.

Pima district: Wilson, E. D. 3

St. Anthony area : Creasey 1

Superior area : Wilson, E. D. 5

Wallapai district: Dings 

Mineral deposits, Boulder Canyon area :

U. S. Bur. Reclamation 

Nonmetallics : Wilson, E. D. 1 

Petroleum, potential: McKee 2 

San Manuel district, alteration studies :

Schwartz 

Zinc : Wilson, E. D. 2

Aravaipa district: Wilson, E. D. 4 

. Bagdad area : Anderson, C. A. 1

Bisbee district: Hogue

Globe-Miami district: Peterson, N. P.
294 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Arizona Continued

Economic geology Continued 

Zinc Continued 

Iron King area : Creasey 2 

Johnson Camp area : Cooper, J. R. 

Pima district: Wilson, B. D. 3 

St. Anthony area : Creasey 1 

Superior area: Wilson, B. D. 5 

Wallapai district: Dings 

Geologic maps.

Bagdad area: Anderson, C. A. 1 

Bisbee district: Hogue 

Boulder Canyon area: U. S. Bur. Reclamation

Copper King mine: 'Anderson, C. A. 1 

Index : Boardman 2 

Iron King area, sketch map : Creasey 2 

Johnson Camp area: Cooper, J. R. 

Old Dick mine: Anderson, C. A. 1 

St. Anthony area: Creasey 1 

Superior area : Wilson, E. D. 5 

Wallapai district: Dings 

Ground water.

Gila River Basin : Hem 1 

Historical geology. 

Jurassic: Hoover 

Kaibab limestone, Permian : Price, W. B.

2

Mesozoic, isopach studies: McKee 1 

Northeastern, columnar section : Bradish 1

Paleozoic, isopach studies : McKee 1 

Sycamore Canyon, gravels, Cenozoic:

Price, W. E. 1

Triassic, popular account: Colbert 3 

Wallapai district: Thomas, B. B.

Mineralogy.

Canyon Diablo meteorites, chemical

analysis: Buddhue 2 

Internal structure and location:

"Nlninger 2

Paralaurionite, Mammoth mine: Palache 2 

Wherryite : Fahey 1

Paleontology. 

Mammalia, Milk Creek area, Pliocene:

Reed, C. -A..

TriaSSlC life, popular account: Colbert 3

Petrology.

Bagdad copper deposit, alteration : Anderson, C. A. 3 

camptonite dikes, near Boulder Dam:

Campbell, I. 2

Grand Canyon, lava flows: Maxson l

Wallapai district : Thomas, B. E.

Physical geology.

Lake Mead, silting studies: Nichols

Oak" Creek Canyon, faulting and reverse

drag: Hears l

Physiographic geology.

Grand Canyon : Torre Mandrazo

Oak Creek Canyon area, Cenozoic = Mears 

2

Pediment formation, near House Rock:

Miller, V. C. 2 

Arkansas.

Economic geology.

Clay, Wilcox group: Funnell

Arkansas Continued 

Economic geoloffy Continued

Industrial minerals: Mather, W. B.

Mercury, southwestern area : McElvenny

Petroleum, Cairo field : Goebel

Smackover limestone : Vestal, J. H. 

Geologic maps.

Batesville manganese district: U. S. 

G. S. 2

Port Smith district: Hendricks, T. A. 1 

Ground water.

Ashley County: Hewitt, F. A.

Jefferson County : Klein 

Historical geology.

Cairo oil field, Jurassic: Goebel

Cretaceous: Philpott

Fort Smith district: Hendricks, T. A. 1

Franklin County, No. 1 Barton well section : Lantz

Jefferson County : Klein

Smackover limestone, Jurassic: Vestal,

J. H.

Stanley shale, Carboniferous : Hass 

Mineralogy.

Diamonds, Prairie Creek area : Thoenen 

Miserite, Potash Sulphur Springs:

Schaller 1

Wilcox formation : Alien, V. T. 2 

Paleontology.

Conodonts, Stanley shale, Carboniferous : Hass 

Fort Smith district, fossil plant list:

Hendricks, T. A. 1 

Plant remains, in bauxite : Dreyer 

Petrology.

Tinguaite dikes : Hildebrand 

Wilcox formation : Alien, V. T. 2 

Physical geology.

Fort Smith district, structure: Hendricks, T. A. 1

Arthropoda.

British Columbia, beetle, Corclova Bay

lignite, Lynn Creek lignite : Pierce,

W. D. 4 

Carabid, Lynn Creek lignite : Pierce,

W. D. 3

Evolution, skeletal: Gregory, W. K. 

Artificial minerals.

Amphiboles, fluorine, isomorphism:

Comeforo 

Calcium orthosilicate, polymorphism :

Bredig

Eucryptite : Roy, R.

Fluosilicates: insley 

Garnet: Hummel

Manganese minerals, synthesis : Wadsley

Mica crystals: Insley

Mica, fluorine, synthesis: Hatch; Van

Valkenburgh

Mullite, synthesis: Bauer

X-ray investigation : McAtee 

WlCkel-iron phosphides : Buddhue 4

Petalite : Roy, R.

Quartz, synthesis: Birks; Hale, D. R. l

Rutile crystals : Moore, C. H.

Schreibersite : Buddhue 4

Selenides: Barley
INDEX 295

Artificial minerals Continued

Silicon carbide, structure : Ramsdell 2 

Spodumene: Roy, R. 

Tourmaline : Barnes, W. H. 

Uranyl vanadates : Murata 

Asbestos.

General: Bowles 

Ontario: Hewitt, D. F. 2 

X-ray investigation : Beatty 

Asphalt. See Bituminous rocks. 

Associations.

American Geological Institute : Delo 1,

2, 3 

Paleontological Society, Pacific Coast

Branch, history : Easton 2 

Atlantic coastal plain.

Cretaceous strata: Spangler 1 

Eocene nomenclature: Murray, G. E., 1 

Petroleum: Straley 1 

Seismic refraction measurements:

Ewing 3

Tertiary strata : Spangler 1 

Waters, bicarbonate content: Foster,

M.D.I 

Aves. See also Vertebrata.

California, flamingo, Miocene: Miller,

L. H.

Evolution : Howard, H. 

Bahamas, aeromagnetic survey : Bemrose 

Barbados, Foraminifera, Hantkenina, Eocene : Bronniman 

Barite.

Georgia, Cartersville district: Kesler 2 

North Carolina, Hot Springs area : Oriel 

United States, southeastern : Kesler 1 

Basalt.

California, quartz Inclusions: Clark,

A. W.

Columbia River: Baldwin, E. M.; Wallace 1

Channels: Trimble 

Dike feeders : Waters 

Joints: Trimble 

Petrology : Campbell, C. D. 

Structure: Fuller, R. E. 1 

Basins.

North Carolina, Carolina bays : Frey 

Sedimentary, and petroleum exploration : Kaufmann, G. F. 

Batholiths. See also Intrusions.

California, Southern California batholith : Bowen 4

Southern California batholith, mineral and rock composition : Larsen, 

E. S. 1

General: Bowen 4 

Montana, Highland Mts., Boulder

batholith : Sahinen 

Origin : Bowen 4 

Bauxite.

Jamaica: Hose 

United States, southeastern : Bridge 

Beaches. See also Changes of level; Glacial

lakes ; Shore lines ; Terraces. 

Beach drifting: Rosalsky 

Bibliography: Mich. Univ., Lake Hydraulics Lab.

Beaches Continued

California, cycles : Shepard 2

San Diego County, beach ridges: 

Emery 4

Engineering geology: Krumbein 1

Engineering problems : Mason, M. A.

Michigan, erosion : Brater

New York,. Finger Lakes area, gravel:

Taber 2 

Fire Island, drifting; Rosalsky

Sand, size distribution: Emery 6

Sand migration, pulsational: Krumbein 

3

Shoestring sands, formation, structure :

Evans, 0. F. 2 

Benches. See Terraces. 

Bentonite, United States, western, distribution : Baker 

Beryl.

Idaho: Stoll

Maine, Mt. Mica : Hurlbut 3

Montana: Stoll 

Beryllium.

Colorado: Page, L. R. 1 

Bibliography.

Alaskan glaciers: Matthes 1

Atwood, W. W. : Mather, K. F. 2

Beach erosion: Mich. Univ., Lake 

Hydraulics Lab.

British Columbia, northeastern: 

McLearn

Bruce, E. L.: Alcock, F. J. 2 ; Hawley 2

Capps, S. R.: Smith, P. S.

Clark, R. W.: Heald, K. C. 2

Colorado, oil and gas: Dobbin 1

Connecticut, Trlasslc : Krynine 1

Cuba, Cenozoic : Bermtidez 1

Cushman, J. A.: Todd

Ecology of marine bacteria : ZoBell 2

Economic geology: Miller, R. B.

Emmons, W. H.: Levorsen

Fellows, R. E. : CIoos 3

Foraminifera : Thalmann

Geochemical prospecting: Hawkes 1

Geochemistry: Rankama

Geologic map, United States : Jillson 4

Geological research projects : Am. Geol. 

Inst. 3

Geologic time, measurement: Marble 5

Gould, C. N.: Clifton

Gulf of Mexico: Geyer . Haiti, Port-au-Prince area: Butterlin 1

Idaho, mineral resources: Anonymous 4

Jefferson, M.: Visher

Kentucky, 1744-1854 : Jillson 2

Landslides: Varnes 

Larsen, E. S., Jr.: Fitz

Lindgren, W.: Butler, B. S. 4

Loess : Warnock

MacDonald, D. F.: Wrather

Merriam, J. C.: Stock 2

Meteoritic dust: Buddhue 1

Mexico, Parfcutin Volcano : Hatt

Michigan: Stewart, D.

Miner, N. A : Fryxell 2

Mineral aggregates: Fears

Mississippi: Field, G. W.
296

Bibliography Continued

Murray, H. W.: Jordan, G. F.

New Mexico, northern : Northrop

New York, Long Island, geology and

ground water : Brashears 

North America, 1948 : Thorn 

OrdoSez, E.: Martlnez Portillo 

Paleoecology, marine plants: Brown,

R. W. 2

Ostracoderms : Robertson, G. M. 2 

Pegmatites: Tyler, P. M. 

Pelecypoda, Devonian, Michigan: La

Rocque

Phalen, W. C.: Burchard 

Photogeology: Smith, H. T. U. 2 

Popular geology : Pangborn 

Reefs : Pugh ; Twenhofel 2 

Rhode Island : Quinn, A. W. 1 

Rocky Mountain Trench: Howell, J. V. 

Sedimentation : U. S. Dept. Agriculture,

Soil Conserv. Service. 

Sedimentation processes: Trask 2 

Seismology : Milne, W. G. 

Smith, P. S.: Mofflt 2 

South Carolina: Petty 

Spurr, J. E.: Robie 

Taff, J. A.: Miser 2 

Texas, west: West Texas Geol. Soc. 

Vanadium : Bertrand 

Virginia, Piedmont and Coastal Plain :

Roberts, J. K. 3 

Weathering : Reiche 1

West Virginia, Cambrian system : Woodward 1 

Biogeochemistry.

British Columbia, history: Warren, 

H. v. i

Investigations : White, W. H. 

Biography.

Aguilera, J. G. : Dlaz Lozano 

Atwood, W. W.: Mather, K. F. 2 

Ball, S. H. : Leith, C. K.

Berkey, 0. P.: Savage, J. L.

Blake, W. P.: McKenney

Bruce, E. L.: Alcock, F. J. 2 ; Hawley

2; Rose, B.

Capps, S. R. : Smith, P. g.

Chamberlin, R. T.; Tnorington

Clark, R. W. : Heald, K. C. 2 

Cross, C. W. : Bowen 2

Cushman, J. A.: Ovey; Todd 

Davis, W. M.: Martin, L.

DeGolyec, E. L,. : Croneis

Emmons, W. H.: Levorsen

ITello-wa. R. E. : ClOOS 3

Goula, C. N. : Clifton ; r>ott 1 ; E-erguson, J. L.

Hunt, E. H. : Dobbin 2

Jefferson, M.: Visner

Laflamme, J. C.: Bureau

Larsen, E. S., Jr. : Rabbltt, J. C.

 Leighton, M. M.: Dott 2

Lilienborg, B. A.: Kimball 

Lindgren, W.: Butler, B. S. 4 

Lloyd, E. R.: Link, T. A. 2 

MacDonald, D. F.: Wrather j 

Matthes, F. E.: Farquhar

Biography Continued

Merriam, J. C.: Stock 2

Miner, N, A. : Fryxell 2

Murray, H. W. : Jordan, G. F.

Nutting, P. G. : Stevens

Nylander, O. 0. : Raymond, P. E.

Odenbach, F. L.: Birkenhauer

Ordonez, Ezequiel: Castillo Tejero; 

DeGolyer ; Fries 1; Mullerried 5

Palmer, R. H.: Hake

Phalen, W. C.: Burchard

Prouty, W. F.: Stuckey 2

Reedy, M. F., Jr.: Weaver 2

Rice, G. S.: Anonymous 2

Smith, P. S.: Mofflt 2

Spofford, H. N.: Blanpied

Spurr, J. E.: Robie

Sutton, F. A.: Wallis

Swain, F. M., Jr.: Weeks, W. B.

Taff, J. A.: Miser 2

Warren, C. H.: Longwell 2

Willis, Bailey: Blackwelder 2; Williams, H.

Yates, A. B. : Cooke, H. C. 

Bioherms. See Reefs. 

Birds. See Aves. 

Bituminous rocks. See also Oil shale.

Alberta, Athabaska tar sands: Link,

T. A. 7 

Northern : Hume

Utah, Uinta Basin, gilsonite : Murray,

A. N. : 

Blastoldea. See also Echinoclermata.

Cadaster alternatus-Codaster pyramMatus group, Devonian : Cline 2 

Phylogenetic relations : Reimann

Bogs. See Paleobotany; Peat; Pollen analysis.

Bolsons, Texas, west: West Texas Geol. Soc. 

Bone, composition and structure : Hendricks,

S. B.

Borings, gravity data : Smith, N. J. 

Botany, fossil. See Paleobotany. 

Brachiopoda. See alfto Invertebrata.

Greenland, Northeast, late Paleozoic:

Frebold 

Identification, statistical metuod: Arden

Iowa, Aplington formation, Mississippiuh : Stainbrook 2 

Mexico, Colima, Cretaceous : MalcionacioKoerdell 7

Sierra de Cruillas, Rhynclionelld,

Jurassic ; Maiaonaclo-Koerdell 1

Montana, Atrypa, new species: Kottlowslti 1

Splrifericiae, Aiberta, Devonian : cnckniay

Stropheoclontld, new genera : Williams

A.

Texas, Glass Mts., Permian : Cooper, 

G. A.

Wyoming, Atryjxi, new species: Kottlowski 1 

Breccia.

California, southern, origin : Jahns 3 

Rheomorphic: Goodspeed
INDEX 297

British Columbia.

Alaska Highway, terrain study: Raup 

 Areal geology.

Northeastern : McLaern 

Economic geology.

Biogeochemical investigations: White,

W. H.

History : Warren, H. V. 2 

Coal, Groundhog field : Bucklmm 1 

Kootenay formation, correlation:

Newmarch

Northeastern : McLearn 

Geophysical investigations, ores : Smith,

A. 

Gold and silver in vegetation : Warren,

H. V. 1

Gold, Zeballos area: Stevenson 1 

Lead-zinc, Sullivan mine : Swanson 

Metal mining areas: British Columbia

Dept. Mines 

Salmo area : Little 

Uranium : Stevenson 2 

Geologic maps.

Geologic map, discussion : Daly, R. A. 2 

Groundhog coalfield : Buckham 1 

Metal mining areas : British Columbia

Dept. Mines 

Northeastern : McLearn 

Salmo area: Little

Vancouver Island, west coast: Jeletzky 2 

Vancouver North area : Armstrong, J. E. 

Zeballos area : Hoadley ; .Stevenson 1 

Historical geology.

Clastic sediments, origin : Daly, R. A. 2 

Groundhog coalfield, Jurassic-Cretaceous : Bucklmm 1 

Northeastern : McLearn 

Salmo area : Little 

Vancouver Island, west coast: Jeletzky

2

Vancouver North area : Armstrong, J. B. 

Zeballos area: Hoadley 

Mineralogy.

Hydrocarbon : Watson 1

Mineral occurrences : Thompson, Robert

M. 1

Uranium : Stevenson 3 

Paleontology.

Arachnida, fossil spider silk, Seymour

River lignite : Pierce, W. D. 2 

Arthropod, beetle, Corclova Bay lignite :

Pierce, W. D. 4

Lynn Creek lignite : Pierce. W. D. 4 

Carabid, Lynn Creek lignite: Pierce,

. W. D. 3 

Lignite, plant remains, Seymour River:

Pierce, W. D. 1 

Pollen analyses : Hansen 

Vancouver Island, west coast: Jeletzky

2 

Petrology.

Albitite dike, prehnitization : Watson 2 

Zeballos gold mining area: Stevenson 1 

Physical geology.

Earthquake, Queen Charlotte Islands, 

microbarograph record: Heinrich, 

R. R. 4 

Gully formation : Buckham 2

British Columbia Continued 

Physiographic geology.

Glacial recession : Munday

Lightning Lakes Valley, Mathews, W. H.

2 

Mount Garibaldi, volcano: Mathews,

W. H. 1 

Bryozoa.

Fenestella, Devonian, Michigan : Elias 4 

Missouri, Plattin limestone, commensalism with coral: Fischer, A. G. 

Paleoecology, late Paleozoic: Elias 1 

Building stone. See Construction materials ;

Granite; Limestone ; Sandstone. 

California.

Bottom samples, southern California

area, data: Garrison 

Broadway Tunnel, Oakland, engineering

geology : Page, B. M. 

Electra tunnel, engineering geology:

Wiese 1

Folsom Dam project: Kiersch 2 

Friant-Kern Canal, engineering geology :

Logan, J. A.

Goose Lake meteorite: Leonard, F. C. 

Merced County dams, engineering geology : Treasher

Ocean floor, seismic studies : Raitt 

Pine Flat Dam, foundation geology:

Holdredge 2

San Diego area, offshore sediment survey : LaFond

San Francisco area, borings: Calif. 

Univ. Inst. Transportation and 

Traffic Eng. 

San Francisco Bay, engineering geology :

Trask 5 

West Point tunnel, engineering geology :

Wiese 1 

Areal geology.

Santa Maria district: Wo'odring 

Economic geology.

Antimony, Staytoh district: Bailey,

E. H.

Chromite, Klamath Mts., Siskiyou County : Wells, F. G.

Granite, San Diego County: Hoppin 

Limestone, San Mateo area, Calera:

Walker, G. W. 1

San Rafael Mts.: Walker, G. W. 2 

Madera County, mineral map : Logan,

C. A. 

Magnesite, Needles area, San Bernardino

County : Vitaliano 

Red Mountain district: Bodenlos 

Manganese deposits : Trask 3 

Mercury, Altoona deposit, Trinity

County : Swinney 

Cachuma district: Everhart 2 

Skaggs Springs deposit, Sonoma

County : Everhart 1 

Stayton district: Bailey, E. H. 

Mineral resources: Calif. Div. Mines

Staff

Alameda County: Davis, F. F. 

Madera County : Logan, C. A. 

Yolo County : O'Brien, J. C.
298 ANNOTATED BIBLIOGRAPHY OP NORTH AMERICAN GEOLOGY, 1950

California Continued

Economic geology Continued 

Natural gas': Hazzard 3 

Kirby Hill field : Frame 1 

Sacramento Valley area, potential :

Hobson

Santa Barbara County : Dibblee 

Perlite, Sonoma County : Chesterman 

Petroleum : Hazzard 3

Calder field : Carter, F. B.

Helm field : Frame 2

Kern Bluff field : Corwin

Montalvo field : Moir

Placerita field : Barton ; Oakeshott 1

Potential, eastern mountain and desert region : Eastern 1 

Imperial Valley : Tarbet 

Northern Coast Ranges : Gester 

Offshore, southern : Emery 8. 

Sacramento Valley area : Hobson 

San Joaquin Valley : Kilkenny 

Santa Maria region : Lupton 

Southern coastal region : Oakeshott 2 

Southern mountain region : Oakeshott 2

Ventura region : Rand 

San Ardo field : Baldwin, T. A. ; Barger 

San Jose Hills, Los Angeles County :

Olmsted

San Miguelito field : McClellan 

Santa Barbara County : Dibblee 

Santa Maria district : Woodring 

South Belridge field : RlUius 

Tejon Ranch area : Armstrong, H. K. 

Pine Flat Dam, decomposed dikes :

Holdredge 1 

Pyrophyllite, San Diegulto area : Jahns

Santa Barbara. County 

Sonoma County : Honke

Talc : Wright, L. A. 1

Silver Lake area : Wright, L. A. 2 

Tin, Neenach quadrangle : Wiese 2

Tungsten, Tungsten mils deposits:

Bateman, P. C. 

Q-eologio maps.

Antelope Valley area : Wiese 3

Blue Lake quadrangle : Manning

CaCllUma district : Everlinrt 2

Calera limestone, San Mateo area:

 WulUer, Q. \v. ±

Delta-MendOta Canal area : Reictae 2.

Gaviota quadrangle: Dibblee

Hungry Valley area, Tertiary-Quatfirnary: Croweii i

Kiamath Mts., peridotite and chromite : Wells, I\ G.

Lompoc quadrangle : Dibmee

Los Olivos quadrangle : Dibblee

Maccloel quadrangle; Williams, H. 

Needles magnesite deposit, San Bernardino County : Vitaliano . Neenach quadrangle : Wiese 2 

Point Arguello quadrangle : Dibblee 

Point Conception quadrangle : Dibblee

California Continued

Geologic maps Continued '

Quien Sabe quadrangle: Leith, C. J. 1 

Red Mountain magnesite district: Bodenlos 

San Dieguito area, pyrophyllite : Jahns

2 

San Jose Hills, Los Angeles County :

Olmsted

San Rafael Mts. : Walker, G. W. 2 

Santa Barbara County : Dibblee 

Santa Maria district: Woodring 

Skaggs Springs mercury mine, Sonoma

County : Everhart 1 

Stayton district: Bailey, E. H. 

Toowa Valley : Webb 

Ground water.

General: Poland 

Historical geology.

Anaverde formation, Pliocene: Axelrod

4

Antelope Valley area, Tertiary : Wiese 3 

Blue Lake quadrangle: Manning 

Breccias, origin : Jahns 3 

Calera limestone, San Mateo area : Walker, G. W. 1

CoralUochama beds, Cretaceous: Durham 4

Cuyama Gorge: Clements 

Delta-Mendota Canal area: Reiche 2 

Hungry Valley area, Tertiary-Quaternary : Crowell 1

Macdoel quadrangle : Williams, H. 

Needles area,' San Bernardino County,

Tertiary : Vitaliano 

Neenach quadrangle : Wiese 2 

Piru Creek area, Pliocene: Axelrod 5 

Placerita oil field : Barton 

Quien Sabe quadrangle : Leith, C. J. 1 

Ridge Basin stratigraphy, Pliocene : Axelrod 5

s&» Ardo oil field: Barger

Tertiary : Baldwin, T. A.

San Jose Hills, Los Angeles County;

Olmsted 

Santa Barbara County : Dibblee

Santa Maria district -. Woodring

 Mineralogy.

Allanite, Yosemite National Park Hutton 2 

Benitoite : Anonymous 1; Dake 3

Gem mine area, San Benito County 

Dake 3

Gom« : Heni-y

Jadeite : Bolancler

Clear Creek, San Benito County: mman, W. U.

Jarosite, stoadara Mtn. -. Hutton i 

Magnesite, Needles area, San Bernarclino

County : Vltalin.no Mineral collecting: Henry 

Perovskite: Bolander

Crestmore : Murdoch

Quartz in olivine basalt: Clark, A. W. 

. Quien Sabe volcanics: Leith, C. J. 3 

Southern California batholith, minerals :

Larsen, E. S. 1 

Veatchite : Switzer
INDEX 299

California Continued 

Paleontology.

Anaverde flora, Pliocene: Axelrod 4

Flamingo, Miocene, Barstow: Miller, 

L. H.

Foraminifera, Meganos formation, Eocene : Graham, J. J. 2, 3

Foraminiferal casts: Graham, J. J. 1

Handbook, field identification of fossils : 

Schenck

Man, Pleistocene, La Jolla : Carter, G. F.

Mount Eden flora, Pliocene: Axelrod 3

Napa region, florule : Axelrod 2

Pirn Gorge flora, Pliocene : Axelrod 5

Santa Maria district: Woodring

Silicoflagellates, Mount Diablo, Eocene : 

Mandra

Vertebrates, Rancho La Brea, Pleistocene : Stock 1 

Petrology.

Friant formation, volcanic ash : Tratiger

Kyanite paragenesis, Ogilby area: 

Campbell, I. 3

Lucerne Valley, magnesium metasomatism : Campbell. I. 1

Macdoel quadrangle : Williams, H.

Phosphorite nodules, submarine : Emery 

1

Quien Sabe volcanics : Leith, C. J. 3 .

San Dieguito area, pyrophyllite rocks : 

Jahns 2

Silver Lake talc-tremolite area : Wright, 

L. A. 2

Southern California batholith, Larsen's

work : Bowen 4

Rock and mineral composition : Larsen, E. S. 1

Tulare sediments, Delta-Mendota Canal 

area: Reiche 2

Volcanics, Toowa Valley : Webb 

Physical geology.

Antelope Valley area, Tertiary : Wiese 3

Concretions, San Diego County : Emery 

4

Crestmore marble, thermal expansion 

and color: Rosenholtz 2

Earthquakes : Herrick 1, 2, 3 ; Romney

1, 2, 3 ; Tocher 1, 2 

Distribution by first motion : Byerly 1 

Longitudinal waves, velocity :. Gutenberg 4

Transverse waves and fault movements : Dehlinger 

Waves, Cape Mendocino: Byerly 2.

Faulting, Cachuma district: Everhart 2 

Mohawk Valley : Durrell

Folding, interformational, Newport 

Beach : Emery 5

Repetto formation, Pliocene, turbidity 

flow: Natland 2

Rio Vista fault scarp : Reiche 3

Toowa. Valley : Webb 

Physiographic geology.

Alluvial fan, La Jolla : Carter, G. F.

Beaches, cycles : Shepard 2

Coronado submarine canyon, topography : Shepard 3

California Continued 

Physiographic geology Continued

Erosional slopes, San Rafael Hills:

Strahler 2

Verdugo Mts.: Strahler 2 

La Jolla submarine canyon, topography :

Shepard 3

Mono Lake, Pleistocene : Putnam 

Mounds, Siskiyou County : Masson 

Mt. Pickering, glacier remnants : Kehrlein

Mugu submarine canyon : Inman, D. L. 1 

Panamint Range : Maxson 

San Diego County, beach ridges:

Emery 4

Sequoia National Park : Matthes 3 

Submarine canyons: Crowell 2 

Submarine topography, offshore: Lawson

Yosemite Valley : Matthes 2 

Cambrian. See also Paleontology, Cambrian. 

Arctic Archipelago, Devon Island : Kurtz 

Greenland, Kap Oswald area: Schaub 

Illinois, northern, Mt. Simon sandstone :

Templeton

Kansas, Arbuckle limestone : Clair 

Massachusetts, Hoppin Hill, Cambrian

contact: Dowse 

Mexico : Alvarez 1 

Minnesota, Franconia formation : Bell,

W. C. 2 

Montana, Horseshoe Hills, Dry Creek

shale: Lochman 4 

Paleoecology : Lochman 1 

New Brunswick : Hutchinson, R. D. 

New York, Hudson Valley, Paleozoic:

Flower 3

Subsurface : Swnrtz 

Newfoundland, Bonavista area : Christie

Eastern : Walthier 

North Carolina, Hot Springs area:

Oriel 

Northwest Territories, Imperial River

Canyon : Laudon

Oklahoma, Arbuckle anticline : Ham 1 

Pennsylvania, eastern : Howell, B. F. 2

Taconic sequence : Stose 2 

Subsurface: Swartz 

Ptychopleurites zone, nomenclature:

Wilson, J. L. 2

Vermont, Castleton area : Fowler, P. 

Northwest, Oak Hill succession :

Booth

Virginia, Blue Ridge : Bloomer 1, 2 

Blue Ridge Mts., Albemarle County

area: Nelson, W. A. 

West Virginia: Woodward 1 

Wisconsin, Bayfield group, age : Raasch 

Franconia formation: Bell, W. C. 2 

Wyoming, paleoecology : Lochman 1 

Canada. See also the various provinces. 

Canadian Shield, geophysical investigations : Wilson, J. T. 2 

Gravity anomalies, northwestern : Innes 

Rocky Mountain Trench, bibliography:

Howell, J. V. 

Tectonic map, notes : Derry 2
300 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Canada Continued 

Economic geology.

Antimony : McClelland

Iron, Iron Range rocks, origin : Tanton

2, 3 

Mineral deposits, Appalachian region :

Jones, I. W.

Cordilleran region: Gunning 

Pre-Cambrian shield : Buff am 

Natural gas: Link, T. A. 4 

Petroleum: Hopkins, O. B. 2; Link,

T. A. 4; Ver Wiebe 

Exploration, western : Beck, A. F. 

Geophysical prospecting: Barthelmes 

Interior Plains: Link, T. A. 3 

Major fields: Heald, K. C. 8 

Western : Haider 

Western fields : von Gaertner 

Radioactive minerals: Bain 1 

Thorium: James, W. F. 

Uranium : James, W. F.; Lang, A. H.;

Wright, R. J. 

Ground water.

General: Alcock, F. J. 1 

Historical geology.

Interior Plains, Paleozoic, Mesozoic:

Link, T. A. 3 

Mineralogy.

Diamonds: Field, D. S. M. 2

Gem localities, Baffin Island: Field,

D. S. M. 3

Thorium: James, W. F. 

Uranium: James, W. F. 

Paleontology.

Devonian faunal zones: Warren, P. S. 

Petrology.

Hudson and James Bays, igneous rocks:

T5r£mine 

Metamorphlc rocks : J6r6mine

Iron range rocks, Lake Superior district, origin: Tanton 2, 3

Physical geology.

Canadian Shield, structure: Harrison,

J. M.

Interior Plains, structure : Link, T. A. 3 

St. Lawrence earthquake, 1925 : Hodgson, E. A.

Tectonic map: Geol. Assoc. Canada 

Canadian Shield.

Geophysical investigations: Wilson, 

J. T. 2

Gravity anomalies: Garland \

Heat flow : Leith, T. H. 

Structure : Harrison, J. M.

Canal Zone. See Panama.

Carbonates.

Aragonite, thermal analysis : Faust 

Calcite, Michigan, Seneca copper mine:

SplrofE

Thermal analysis: Faust

Calcium carbonate, solution rate : Garrels 

Differential thermal analysis: Beck,

C. W. 3 

Mineral and chemical characteristics:

Gaul't 2

Carboniferous. See also Paleontology, Carboniferous.

Alabama, Huntsville area : LaMoreaux 2 

Alaska, Brooks Range, Mississippian :

Bowsher 

Arkansas, Fort Smith district : Hendricks, T. A. 1 

Colorado, Front Range : Maher 1

San Juan Basin, Pennsylvanian :

Bradish 2

Uinta Basin : Bissell 

Cyclic sedimentation : Moore, R. C. 1 ;

Wanless 1 

Illinois, Brewerville sandstone, structures : Swann 

MississippianJPennsylvanian unconformity : Siever 2 

Indiana, Jasonville quadrangle : Wier,

C. E. 1

Mississippian : Hare 

Pennsylvanian formations : Wier,

C. E. 2 

Western, Mississippian-Pennsylva-

.nian : Esarey 2 

Iowa, Aplington formation, Mississippian : Stainbrook 2 

Des Moines sandstones, petrology :

Clark, R. H. 

Kansas, Tonganoxie Valley, Pennsylvanian : Lins 

Kentucky, Island area : Jacobsen

Mississippian, flow markings : Rich 2 

Utica oil field, Mississippian : Bruce,

C. H. 

Missouri, Aux Vases sandstone, structures : Swann 

Pennsylvanian : Cline 1

Southwestern, Mississippian: Kaiser,

C. P.

Montana, Big Snowy group, Mississippian : Scott, H. W. 

Charles formation : Hadley, H. D.

New Mexico, San Juan Basin, Pennsyl-

: Bradish 2 

Nova Scotia, Horton series, Mississippian : Decker, R. W. 

Ohio, Mississippian, flow markings :

Rich 2 

Sharon conglomerate, Pennsylvanian :

Fuller, J. O. 1., 2

Oklahoma, Anadarko Basin : Wheeler, 

B. R. 1

Western', subsurface : Meholin

-Des Moines series, Pennsylvanian :

Scruton

Northeastern, Pennsylvanian : Wright,

L. M.

Pennsylvanian : Tomlinson, C. W. 1 

Sholem Alechem oil field : Billingsley

S..vithwost : Oaswell

Texas, Anadarko Basin, western, subsurface : Meholin 

Cross section, Runnels and Coke

Counties : McFall 

Llano region : Abilene Geol. Soc. 3 ;

Plummer, F. B. 

Utah, Uinta Basin : Bissell
INDEX 301

Carboniferous Continued

West Virginia, southeastern, Mlssissippian : Wells, D. 

Carolina bays.

Age, sediment studies : Frey 

Origin : Melton 1; Prouty

Tidal eddy traces : Cooke, C. W. 

Catalogs.

California fossils: Schenck 

Foraminifera, descriptions: Ellis

Gulf Coast: McLean 2 

Mexico, paleobotany : Maldonaclo-Koerclell 4 

Nininger meteorite collection : Nininger

1 

Caves.

Handbook: Hendrix 

Ice caves, origin : Merriam 

Indiana, Mitchell Plain : Wayne 2 

Maryland: Davies, W. E. 

' Mexico, Encantada cave, Morelos : Arellano 1

Mineralogy of stalactites and stalagmites : Hicks, F. L. 

Missouri, St. Louis : Simpson 5 

Montana, Armington: Green, .T. R. 

Origin: Nunez Jimgnez 

United States, ice caves : Merriam 

Washington, Mt. Rainier, ice cavern:

Potts 

Cenozoic.

Arizona, Oak Creek Canyon area, geomorphic history : Mears 2 

Sycamore Canyon, geologic history :

Price, W. E. 1

Climate, Pacific Coast: Durham 2 

Correlation problems : Stirton 1 

Cuba: Bermudez 1

Florida, volume of sediments: Toulmin 

Georgia, volume of sediments : Toulmin 

Greenland, northwest: Troelsen 2 

Gulf Coast sediments, volume; Murray,

G. E. 4

Indiana, Wabash area : Thornbury 2 

Texas, Gulf Const: Colle 

Time, correlation, Eurasia and North

America: Stout 2

Central America. See the various countries. 

Cephalopoda. See also Mollusca.

Actinocamaa;, Cretaceous: Jeletzky 1 

Alaska, Kamishak Bay area, Cretaceous :

Hazzard 1 

Ammonites, Jurassic, classification:

Arkell

Ammonoidea, classification : Haas 1 

Texas, Finis shale, Pennsylvania!!:

Miller, A. K. 3 

Paleozoic, distribution : Miller, A. K.

7 

Cuba, Viiiales area, Jurassic: Sanchez

Roig 2

Vifiales Valley, ammonoids : Torre 

Voltaia, Jurassic: Schevill 

Iowa, goniatites, Pennsylvania!!: Miller,

A. K. 1

Kentucky, nautiloid, Mississippian: 

Miller, A. K. 6

Cephalopoda Continued

Manitoba, Actinocamax, Cretaceous:

Jeletzky

Mexico, Arroyo de la Leona, Upper Cretaceous : Malclonado-Koerdell 6 

San Pedro Altetepan area, Jurassic:

Mullerried 4

Nautiloidea, classification : Flower 2 

Paleozoic: Flower 4 

Tertiary : Miller, 'A. K. 2 

Stereotoceras, Devonian : Flower 1 

Texas, Barnett formation, Mississippian : Miller, A. K. 5 

Utah, Confusion Range, Mississippian:

Youngquist 2 

Ceramic materials.

Aragonite, thermal analysis : Gruver 

Clay : Grim 3

Georgia : Mitchell, L. 1 

Maryland: Waag6 

Texas, Troup district: Pence 

Kansas, Barton County : Plummer, N. V.

Stafford County : Plummer, N. V. 

Maryland, refractory clays : Waage" 

Mexico, alunite: Kni2ek 

South Carolina, shales : Buie 

Texas, Troup district, ball clay : Pence 

Changes of level. See also Beaches; Shore

lines; Terraces.

California, La Jolla: Carter, G. F. 

Submarine canyons, origin : von Engeln 

Chemical analyses. See Analyses. 

Chert.

Pennsylvania, Orclovician, petrology:

Folk 1 

Surface features, electron microscope

study: Folk 2 

Chromlte.

California, 'Klamath Mts., Siskiyou

County : Wells, F. G. 

Cirques, New Hampshire, map : N. H. State

Plan. Dev. Coinin. 

Cirripedia.

* Mexico, Gulf of California islands : Durham 1

Lower California : Durham 1 

Classification.

Ammonites: Haas 1 

Jurassic: Arkell 

Clays, Georgia : Mitchell, L. 1 

Corals, Ordovician : Bassler 2 

Fluoaluminates, crystal structure:

Pabst 1

Ground water: Lee, C. H. 

Nautiloids: Flower 2 

Paleozoic: Flower 4 

Ore deposits, hypogene : Schmitt 5 

Pennsylvanian, Missouri: Greene 

Reefs: Sloss 4 

Sedimentary rocks : Dapples; Rodgers

2; Trefethen

Foundation engineering: Philbrick 

Sediments: Trefethen 

Silicates, reaction energy order : Gruner 

Soils: Trefethen 

Spores: Arnold

980682° 52- -20
302 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Classification Continued

Stratigraphic units: Moore, R. C. 3 

Thermal springs : White, D. E. 2 

Clay.

Alunitic, thermochemical changes : Gad 

Arkansas, Wilcox : Funnell

Petrography: Alien, V. T. 2 

Base-exchange data: Lewis 

California, Alameda County: Davis,

F. F.

Ceramic properties : Grim 3 

Chemical analyses : Kerr, P. F. 4 

Colorado, Golden area, Laramie formation, Cretaceous: Gude 

Electron micrographs : Davis, D. W. 

Endellite, crystal structure : Bates 2 

Georgia, classification : Mitchell, L. 1

Thermal analysis : Mitchell, L. 2 

Grinding effects : Parkert 

Halloysite, crystal structure: Bates 2 

Infrared absorption : Keller 1 

Infrared investigations : Adler ; Bray ;

Hunt, J. M.; Keller 3 ; Kerr, P. F. 5 

Kansas, Barton County: Plummer,

N. V.

Stafford County : Plummet, N. V. 

Kentucky, Jackson Purchase region:

Gildersleeve 1; Roberts, J. K. 1 

Magnetic susceptibility: Reno 

Maryland, Castleman coal basin : Waag6

Coal measures : Waag6 

Mineralogy, relation to petroleum : Grim

4

Minerals, anion exchange : Prabhu 

Missouri, Columbia, gumbotil origin:

Hseung 

Missouri River Basin, bentonlte:

Knechtel 3 

Montmorillonite, crystal chemistry:

McConnell 3 

Exchojig-eabie magnesium: Foster,

M. D. 2

New Hampshire: Chapman, D. H.

Particle size data : Calif. Research Corp.

Petroleum production, significance : Cox

pH data: Bassett, A. B.

Soil, X-ray data : Marel

Components: Grim 1, 2

Spectrographic analyses : Wheeler, G. V. 

Staining tests : Mlelenz

Texas: Stenzel 2

Troup district: Pence ; Stenzel 1 

United States, reference specimens, electron micrographs: Davis, D. W.

Microscopic examination : Main, M. S. 

Occurrence : Kerr, P. E\ 3

Utah, Bull Valley district, halloysite:

Crawford 1

Lake MtS., FOX Clay deposit: Stringham 3 

X-ray diffraction data : Kerr, P. F. 4

Cleavage.

Molybdenite: Bailly 1 

Coal. See also Lignite. 

Alberta : MacKay 1 

Alexo area: Erdman 

Daniels Flats area : Irish 

Saunders.area: Erdman

Coal Continued

British Columbia, Groundhog field:

Buckham 1 

Kootenay formation, correlation:

Newmarch

Northeastern : McLearn 

California : Calif. Div. Mines Staff 

Classification : Parry 

Illinois, Herrin coal bed, structure:

Siever 1 

Pennsylvanian beds, correlation : Kosanke 1 

Indiana: Wier, C. E. 2, 3

Jasonville quadrangle : Wier, C. E. 1 

Kentucky, Hyden quadrangle : Johnston,

J. E.

Maryland: Waag6 

Mexico : Tor6n Villegas 2 

Coahuila : Gonzalez Reyna 3 

Reserves : Tor6n Villegas 1 

Michigan, reserves : Averitt 2 ; Cohee 

Montana, reserves : Averitt 2

Map: Combo 

New Mexico, resources: Averitt 2;

Read 2, 3

North Carolina, reserves : Averitt 2 

Nova Scotia, Sydney field, reserves:

MacKay 2

Oklahoma, Le Flore County : Knechtel 1 

Pennsylvania, anthracite reserves:

Rothrock, H. E. 2 

Bituminous reserves : Ashley 

Cambria County, reserves : Dowd 1 

Indiana County, reserves : Dowd 2 

Mt. Carmel quadrangle: Rothrock,

H. E. 1

Research, fields of: Cady, G. H. 

Resources, survey : Averitt 1 

United States, northwestern : Green,

S. H. 

Reserves : Averitt 2 ; Fieldner

Resource studies : Searight 

Western : Parry

utah. iron County, eastern; Gregory,

H. E.

Wyoming, Kemmerer field: Hunter, 

W. S.

Reserves : Averitt 2 ; Berryhill

Yukon: Bostock

Coelenterata. See also AnthozOa J InVGl'tfibrata.

Michigan, Traverse group, Devonian:

Stuinm 3 

Multisolenida : Fritz 1

New Jersey, conularid, Esopus formation, Devonian : Herpers 1

New York, Silurian, Afetacontilarta. new species; Howeii, B. F. i

Yukon, new genus, Carboniferous : Harker

Collections.

Fossil plant, Mazoii Creek, Illinois, at

University Of Illinois: Stewart,

W. N. 1 

Nininger meteorite collection : Nininger

1 

Reptilia, Cope's types, University of

Texas : Wilson, J. A. 1
INDEX 303

Colorado.

Colorado School of Mines, geophysics :

Hollister

Early geologic work: Butler, B. S. 1 

San Juan Basin : Kelley 1 

Geophysical work: Dobyns 

Guidebook : N. Mex. Geol. Soc. 

University of Colorado, field geology : Murray, H. F.

Geologic instruction : Cavender 

Economic geology.

Alteration, volcanic rocks: Burbank 1

Beryl : Page, L. R. 1

Boulder County : Larsen, V. B.

Brush Creek mining district: Gabelman

1

Carriotite, Colorado Plateau : Blackman 

Fluorite, Northgate district, origin:

Steven

Front Range: Lovering 1 

Fulford mining district: Gabelman 1 

Gold placers, Park County : Singewald 

Green River oil shale, solubility experiments : Ferris 

Industrial minerals: Argall 

Lead-zinc, Aspen district: Volin 

Natural gas: Dobbin 1 

Douglas Creek field : Gow 

San Juan Basin: Barnes, F. C.

Cretaceous: Silver 2 

Oil shale, Piceance Creek Basin : Duncan

Pegmatites : Hanley 

Petroleum: Dobbin 1 

Eastern : Oborne 

Rangely field : Patton, H. L. 

.San Juan Basin: Barnes, F. C. 

Radioactive ore, Caribou silver mine:

Ridland

San Juan area: King, W. H. 

Uranium sandstone: Fischer, R. P. 

Geologic maps.

Boulder area, Paleozoic and Mesozoic :

Harding, R. C. 

Brush Creek mining district, sketch

map : Gabelman 1 . 

Front Range: Lovering 1

Mining districts : Lovering 1 

Fulford mining district, sketch map:

Gabelman 1

Oil and gas fields : Dobbin 1 

Park County, bedrock geology: Singe-

.wald

Surficial geology : Singewald 

San Juan Basin : Silver 1 

Wellsville area, Paleozoic : Rold 1 

Ground water.

Julesburg area : McLaughlin, T. G. 

Morgan County, Brush area: Brown,

R. F. 

Historical geology.

Boulder area, .Paleozoic and Mesozoic :

Harding, R. C. 

Denver Mtn. area : Tweto 

Dinosaur National Monument: U. S. 

G. S. 1

Colorado Continued

Historical geology Continued 

Front Range: Lovering 1 

Mississippian: Maher 1 

Ordovician: Maher 1 

Pre-Pennsylvanian sections : Maher 2 

Jurassic : Hoover 

Laramie formation, Cretaceous, Golden

area: Gude

Maroon formation, South Canyon Creek 

area, Pennsylvaniau-Permiau : Bass . 

2 

McCoy area, Permo-Triassic red beds:

Sheridan 

Mesozoic: Heaton

Uncompahgre uplift, effect: Holmes,

C. N.

Paleozoic: Heaton 

Western: Bass 1

Pennsylvanian strata, correlation : Brill 

Piceance Creek Basin : Duncan 

Rangely oil field: Patton, H. L. 

San Juan Basin : Beaumont 

Cretaceous : Silver 2 ; Umbach 

Pennsylvanian : Bradish 2 

Permian : Read 1 

Pre-Cambrian : Kelley 2 

Triassic : Wengerd 1 

Southwestern, columnar section : Bradish 1

Uinta Basin, Carboniferous : Bissell 

Mesozoic: Stokes 1 

Paleozoic : Critteuden 

Permian : Bissell 

Pre-Cambrian : Crittenden 

Wellsville area: Rold 2

Paleozoic: Rold 1 

Williams thrust area: Richards, A. 

Mineralogy.

Albite, authigenic, Green River shale:

Moore, F. B. 

Cordierite, Micanite district: Heinrich,

E. W. 4

Euxenite, analysis : Muench 1 

Heavy minerals, Cretaceous sandstones,

Front Range : Goldstein 

Hummerite, Montrose County: Weeks,

A. D. 

Laramie formation, clay . minerals,

. Golden area : Gude 

Melonite, Boulder County : Wahlstroin 2 

Montroseite, Montrose County: Weeks,

A. D.

Pitchblende, age : Muench 1 

Paleontology.

Dinosaur National Monument: U. S.

G. S. 1 

Mollusca, South Canyon Creek area,

Permian : Bass 2

Plants, Cretaceous: Brown, R. W. 3 

Petrology.

Alteration, volcanic rocks: Burbank 1 

Granite, pre-Cambrian, origin: Koschmann 3 

Heavy minerals, Cretaceous sandstones,

Front Range: Goldstein 

Irwin district: Socolow
304 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Colorado Con tinu ed 

Petrology Continued

Leadville limestone, hydrothermal alteration, ore guide: Davidson 

Monarch mining district, structural control of alteration: Gabelman 2 

Quartz Creek district, pegmatites:

Staatz

Treasure Mtn. granite: Bain 2 

Physical geology.

Corral Bluffs, sandstone spindles : Hussey 2 

Denver Mtn. Parks area, pre-Cambrian

structure: Boos, M. F. 

Front Range, heat flow : Birch 1 

San Juan Basin, structure: Kelley 3 

Sand pockets, Leadville limestone, Star

Basin area: Garrett, H. L. 

Wellsville area: Bold 2 

Physiographic geology.

Colorado Springs region, piedmont surfaces : Tator 2

Park County, glaciation : Singewald 

Raton Mesa area : Levings 

Colorado Valley, physical features : Powell,

J. W. 

Concretions.

California, San Diego County, ironstone : Emery 4 

Meteoritic material in : LaPaz 

Conglomerate.

North Carolina, Chatham County:

Berry, B. W. 2

United States, western, origin : Stokes 2 

Connecticut. 

Geologic maps. 

Eastern: Foye

Triassic sedimentary rocks : Krynine 1 

Historical geology.

Branford-Killingworth area : Mikami 

Triassic sedimentary rocks : Krynine 1

Petrology.

Branford-Killingworth area: Mikami 

Eastern : Foye

Preston area, magmatic intrusion and 

metamorphism : Sclar 2

Triassic sedimentary rocks : Krynine 1

Ultramylonite, origin : Sclar l

West Rock dike : Walton 

Physical geology.

Earthquakes, eastern: Foye

Triassic border fault: Digman

"West Rock dike. Intrusive mechanism :

Walton

Physiographic geology. 

Eastern : Foye 

Glacial water plane, Willimantic Valley :

Vander Pyl 

Conodonts.

Arkansas, Stanley shale, Carboniferous :

Hass 

Iowa, Burlington limestone, Mlssissippian: Youngquist 1 

Cedar Valley limestone, Devonian :

Downs 

Faunal zones, Paleozoic: Thomas,

L. A. 2

Conodonts Continued

Iowa, Burlington limestone, Mississippian Continued 

Sweetland Creek shale, Devonian:

Thomas, L. A. 3

Oklahoma, Stanley shale, Carboniferous : Hass 

Texas, Andrews County, Devonian:

Ellison, S. P. 1 

Construction materials.

Aggregates for concrete, tests : Rexford

Arizona: Wilson, E. D. 1

California, Alameda County: Da vis,

F. F.

San DiegO County, granite: Hoppin 

San Mateo area, limestone: Walker,

G. W. 1 

San Rafael Mts,, limestone: Walker,

G. W. 2

Colorado: Argall

Earthwork, geochemistry : Forbes 

Jamaica : Hose

Kansas, Decatur County : Byrne. F. E. 4 

Jewell County : Byrne, F. E. 2 

Republic County : Byrne, F. E. 3 

Maps of, types: Byrne, F. E, 1 

Mineral aggregates, bibliography : Fears 

Quebec: Dresser 

South Carolina, shales : Buie 

Tennessee, Crab Orchard district, sandstone : Gildersleeve 2 

Wyoming, Lander area: Thompson,

Raymond M.

Contact metamorphism. See Metamorphism. 

Continental drift.

Origin: Fisher, J. E. 3 

Pacific Basin, north, Tertiary: Durham 3 

Continental shelf.

Greenland, marginal fault: Holtedahl 

Gulf of Mexico, oil : McGee 

Labrador, marginal fault: H-oltedahl 

Origin : Carsey ; Weaver 1

Sediments, transportation: Evans, 0. F. 

4

Continental Slope, sedimentary rocks, criteria: Rich 1

Continents.

Formation : Bucher 1 

Theory of contracting continents;

Wneeler, R. R. 5

Copper.

Alaska, Prince William Sound district:

Moffit 1

Arizona, .Bagdad deposit: Anaerson,

O. A. 3

Emerald Isle deposit : Searis

San Manual deposit, dispersion pattern : Lovering 4

Geochemical prospecting, tests : Sokoloff 

Montana, Park County: Reed, G. c. 

Nova Scotia, Coxheath mine : Cole 

Ontario : Thomson, J. E. 3

Tennessee, Ducktown district: Simmons,

W. W.

Yukon: Bostock 

Coral reefs. See Reefs.
INDEX 305

Corals. See Anthozoa. 

Cores.

California, San Francisco area: Calif. 

Univ. Inst. Transportation and 

Traffic Eng.

Ontario, Jaab Lake area : Satterly 1 

Correlations. See also Geologic formations, 

lists, sections, tables; Historical 

geology.

Alabama, eastern, Selma group, Cretaceous : Bargle

Alberta, Eclmonton area, Devonian : Imperial Oil, Ltd.

. Sunwapta Pass area : Severson 

Arizona, Jurassic: Hoover 

Bradford Third-Richburg sand, Devonian, Pennsylvania-New York: 

Harding, R. W.

British Columbia, Crowsnest area, 

Kootenay coal seams: Newmarch 

Northeastern : McLearn 

Vancouver Island, west coast: Jeletzky 2

California, Santa Maria district: Woodring

Cenozoic, problems : Stirton 1 

Colorado, Front Range, pre-Pennsylvanian: Maher 1 

Jurassic : Hoover 

Maroon formation, South Canyon

Creek member: Bass 2 

McCoy area : Sheridan 

San Juan Basin, Triassic : Wengerd 1 

Uinta Basin, Carboniferous-Permian :

Bissell 

Colorado-New Mexico, Pennsylvanian:

Brill 

Correlation by resistivity values :

Claudet

Cuba, Cenozoic : Bermudez 1 

Devonian faunal zones, western Canada : Warren, P. S.

Fortiminiferal, range charts : Bursch 

Greenland, East, Upper Devonian, with

Europe: Jarvik 3

Illinois, McCraney and Louisiana limestones, Mississippian : Stainbrook 1 

Pennsylvanian coal beds, spores: Kosanke 1

Iowa, McCraney and Louisiana limestones, Mississippian : Stainbrook 1 

Louisiana, Gulf Coast oil fields, Eocene :

Bornhauser

Manitoba, Devonian : Baillie 

Mexico, Guerrero, northeast: Guzman 1 

Gulf of California area, Cenozoic:

Durham 1 

Jurassic: Elizondo ; Maldonado-Koerdell 1 

Missouri, Pennsylvanian : Cline 1

Southwestern, Mississippian : Kaiser,

C. P. 

Montana, Belt series, pre-Cambrlan:

Perry, E. S. 1 

Cambrian: Lochman 1 

Hobson area: Vine 

Southeastern, Paleozoic, subsurface : 

Lea th crock

Correlations Continued

New Mexico, Jurassic : Hoover

San Juan Basin; Triassic : Wengerd 1 

New York, Hanover shale, Devonian:

Pepper

Long Island, Mesozoic and Cenozoic : 

Perlmutter

Well log correlations: de Laguna 2

Wiscoy sandstone, Devonian : Pepper

North Carolina, Coastal Plain : Richards,

H. G, 3

Oklahoma, Golden Trend area, Pennsylvanian : Turk 1 

Panama, Gatun Lake area, Tertiary:

Jones, S. M. 

Quebec, Wakeham Lake area, and Gabbro

Lake area, Huronian : B<51an>d 2 

Rocky Mtn. region, Paleozoic and Mesozoic : Heaton 

Saskatchewan, Cretaceous-Tertiary :.

Russell, L. S. 2

Small-spore studies, use: Schemel 3 

Texas, El Paso formation, insoluble residues : Vanderpool 

Llano region, Carboniferous: Plummer, F. B. 

Triassic, eastern United States: McLaughlin, D. B. 1 

Utah, Jurassic: Hoover

Uinta Basin, Carboniferous-Permian :

Bissell 

Vermont, Castleton area and vicinity :

Fowler, P.

West Virginia, Mississippian : Wells, D. 

Wyoming, adjacent areas, Jurassic : Imlay 2 

Beaver Divide area, Tertiary: Van

Houten

Cambrian : Lochman 1 

Montana group, Upper Cretaceous,

Rock Springs uplift: Hale, L. A. 

Southwest: Wyo. Geol. Assoc. 1

Paleozoic: Thomas, H. D. 

Corundum.

Montana: Clabaugh 1, 4 

Ontario, Craigmont mine : Moyd 1 

Craters.

Meteorite, formation: Rinehart 

Quebec, Chubb crater, near Ungava Bay :

Meen 2

Cretaceous. See also Paleontology, Cretaceous.

Alabama, eastern, Selma group: Eargle 

Alaska, Cape Kaguyak: Hazzard 2 

Kamishak Bay area: Hazzard 1 

Alberta : Russell, L. S. 2 

Daniels Flats area: Irish 

Whitemud oil field: Hunt, C. W. 1 

Atlantic coastal plain : Spangler 1 

California, Goralliochama beds : Durham

4 

Colorado, San Juan Basin: Silver 2;

Umbach

Dominican Republic, Maimfin-Hatillo district : Koschmann 1 

Greenland, East: Maync 1 

Jamaica : Hose
306 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Cretaceous Continued

Kansas, Barton County : Latta

Stafford County: Latta 

Kentucky, Jackson Purchase region:

Roberts, J. K. 1 

Maryland, southern : Overbeck 

Mexico, Cerro Pel6n area, Veracruz:

Benavides G. 2 

Juarez Mts.: Strain 

Moralillo oil field : Suarez C. 

Oaxaca Province : Salas 

Poza Rica area, well sections: Lfipez

Ramos 1 

Salina Basin, Tehuantepec Isthmus :

Alvarez 3 

Mississippi: Conant; Miss. Geol. Soc.

Subsurface: Braunstein 

Montana, Livingston formation: Richards, P. W. 

New Mexico, San Juan Basin : Colbert 2 ;

Silver 2; Umbach

New York, Long Island : Perlmutter 

North Carolina, Coastal Plain : Richards,

H. G. 3

Subsurface: Spangler 2 

Saskatchewan: Russell, L. S. 2 

South Dakota, Pierre shale : Crandell 

Tennessee, western, subsurface cross

section : Schneider, R. 

Texas, Hudspeth County: 'Albritton 

Troup district: Stenzel 1 

Van Horn Mts.: Havard 

United States, eastern: Stephenson,

L. W.

Utah, eastern: Stokes 4 

Virginia, Coastal Plain : Roberts, J. K. 3 

Washington, San Juan Islands : Bradley,

J. S. 

Wyoming, Montana group, Rock Springs

uplift: Hale, L. A. 

Southwest to Yellowstone Park, cross

section : H/ove 4

CriDOldea. See also Echinodermata. 

Devonian : Ooldring 

Endeloorinus tumidus, revision :

Strimple 1 

Evolution, relation to paleogeography:

Moore, R. C. 2

Lasanowinus, Pennsylvania!): Strimple

2

Utharocrinus, Pennsylvanian : Strimple

2

Crustacea. See also Arthropoda ; Cirripedia ; 

OstracoQa: Trilobita.

Quebec, Gaspe" County, Devonian, eurypterld : Russell, L. S. 1 

Cryopeflology. See Permafrost.

Crystal chemistry, montmoi'illonite: McCODneli 3 

Crystal structure.

Atom photographs : Buerger 7

Bornite; Frueh l

Cenosite : Berry, L. G. 2

Chrysotile, tubular crystals: Bates 1

Claudetite: Frueh 3

Crystal structure Continued

Copper chlorides : Frondel, C. 2

Cornetite : Berry, L. G. 1

Cryptomelane: Mathieson

Disorder: Buerger 6 

In snlfldes : Frueh 2

Endellite: Bates 2

Euxenite : Arnott

Feldspars: Laves 1

Fluoaluminates : Pabst 1

Halloysite: Bates 2

Haiichecornite: Peacock 2

Jadeite: Yoder 1

Johannite: Hurlbut 1

Krennerite : Tunell 2

Liebigite : Evans, H. T., 1

Malachite: Ramsdell 1

Mica, crystal lattice expansion: Barshad

Montmorillonite : McConnell 3, 4

Paratacamite: Frondel, C. 2

Parkerite : Peacock 1

Parsonsite : Frondel, C. 3 

. Phosphuranylite : Frondel, C. 6

Pseudomalachite : Berry, L. G. 1

Pyrostilpnite: Peacock 4

Radioactive minerals : Arnott

Rectorite : Bradley, W. F.

Rhodochrosite, ferroan zlncian variety: 

Galloni

SalSeite: Mrose

Serpentine, Texas : Barnes, V. E. 2

Serpentine minerals : Bates 3

Shandite: Peacock 1

Space groups, vector representations: 

Buerger 4

Sulfur: Frondel, C. 4

Symmetry determination by x-ray diffraction : Buerger 2

Tourmaline : Donnay, G. H.

Triclinic cells, constants, nomographs:

Bond 

Triclinic crystals, X-ray precession technique: Fisher, D. J. 2

Veatchlte : Swltzer 

Vector sets : Buerger l, 3

Walpurgite: Evans, H. T. 2

fxanthoconite : Peacock 4

Crystallography.

Adularia : Laves 4

Nomenclature : Peacock 3

Paralaurionlte: Paiacne 2

Symmetry: Buerger 5

Symmetry determination by X-ray diffraction: Buerger 2

Crystals. .

Elasticity : Birch 2

One-dimensional functions: Donnay,

J. D. H.

Optical properties, frequency distribution : Kirkpatrick

Graphic methods : O'Brien, W. A.

Surface structure : Weyl, W. A. 

Synthesis: Waesche 

Veil formation : Zerfoss
INDEX 307

Cuba. See also West Indies. 

Economic geology. 

Manganese : Straczek 

Petroleum : Calvache Suarez 

Cardenas Bay : Brodermann 2 

Jarahueca region : Williams, B. R. 

Historical geology.

Cardenas Bay, well section: Brodermann 2

Cenozoic: Bermfidez 1 

Jarahueca region : Williams, E. R. 

Paleontology.

Ainmonoids, Viuales Valley: Torre 

Echinodermata: Brodermaun 1;

Sanchez Roig 1 

Foraminifera: Reichel 1

Boreloides, Eocene : Reichel 2 

Cenozoic: Bermudez 1 

Choffatella, Cretaceous : Maync 2 

Mammalia, Cenozoic: Aguayo 

Ostracoda, Cretaceous, Tertiary : Bold 

Sepioid, Jurassic : Schevill 

Tortoises: Williams, E. 

Viuales area, cephalopods, Jurassic:

Sanchez Roig 2 

Physiographic geology.

Caves, origin : Nuuez Jimenez 

Cystoidea.

Ordovician: Bassler 1 

Dams and dam sites. See also Engineering

geology. 

Arizona, Boulder Canyon area: U. S.

Bur. Reclamation.

Construction, geological, data : Nesbitt 

Earth dams : Middlebrooks 

Earthwork, geochemistry : Forbes 

Hoover Dam, engineering geology : U. S.

Bur. Reclamation 

Nevada, Boulder Canyon area: U. S.

Bur. Reclamation

Tennessee, South Holston : Moneymaker 

Tennessee Valley projects, engineering

geology : Tenn. Valley Authority 

Definitions.

Bioherm: Link, T. A. 1

Biostrorae : Link, T. A. 1

Ground water : Lee, C. H.

Reef: Twenhofel 2 ; Wilson, W. B. 1

Sagenite: Staples 2

Sediments, correlation by grain-size:

Truesdell 1

Species : Dunbar ; Ellas 5 

Strata thickness, scale : Willard 1 

Zone, stratigraphic concept: Teichert 

Deformation.

Appalachians, central: Gair 

Colorado, San Juan Basin : Kelley 3 

Earth crust, orogenic : Bucher 2 

Island arcs, contraction theory: Scheidegger 1

Maryland, Potomac River Valley: Gair 

South Mountain anticlinorium : Cloos

1

Mountain ranges, contraction theory: 

Scheidegger 1 '

Deformation Continued

New Mexico, San Juan Basin: Kelley 3 

North Carolina, Bryson City area:

Cameron, E. N. 2 

North Dakota, Fort Union formation:

Benson, W. E. B. 

Lignite area: Townsend 

Orogenetic belts, pattern and cause:

Wilson, J. T. 3

Sedimentary rocks, stress interpretation : McKinstry 

Texas, Concho County, limestone, sur-

. face buckling : Osmond 

West Virginia, Potomac River Valley :

Gair 

Delaware.

Cretaceous strata : Spangler 1 

Foraminifera: McLean 2 

Tertiary strata : Spangler 1 

Deltas.

Oklahoma, northeastern, Des Moines series : Scruton 

Wisconsin, glacial Lake Merrimac:

Bretz 1 

Deserts.

Vegetation, Tertiary development, western North America : Axelrod 6. 

Devonian. See also Paleontology, Devonian. 

Alberta, Crowsnest Pass-Jasper area:

deWit

Edmonton area, nomenclature: Imperial Oil, Ltd.

Sunwapta Pass area : Severson 

Detroit River group, revision : Ehlers 1 

Greenland, Cape Franklin area: Jarvik

3

East: Jarvik 3 

Indiana: Hare 

Manitoba: Baillie 

New Mexico, Woodford shale: Ellison,

S. P. 2

New York, Chemung formation : Harding, R. W.

Hanover shale: Pepper 

Wiscoy sandstone : Pepper 

Northwest Territories, Imperial River

Canyon: Laudon 

Pine Point area: Campbell, N. 

Pennsylvania, Chemung formation:

Harding, R. W.

Texas, Woodford shale: Ellison, S. P. 2 

Diabase.

Georgia, Piedmont area, dikes: Lester 2 

New Jersey, Palisades: Fuller, R. E. 2 

Pennsylvania, Safe Harbor, schist inclusions : Tomlinson, W. H. 

Diamonds. See also Gems and gem materials.

Arkansas, Prairie Creek area : Thoenen 

Canada: Field, D. S. M. 2 

Coated : Custers 

Hardness: Slawson 2 

Slijper, orientation : Kohn 

Twinning: Slawson 1 

United States : Field, D. S. M. 2
308 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Differentiation. See Magmas and magmatic

differentiation. 

Dikes. See also Intrusions.

Arizona, near Boulder Dam: Campbell,

I. 2

Arkansas, central: Hildebrand 

British Columbia, altered albitite : Watson 2

California, Pine Flat Dam : Holdredge 1 

Connecticut: Walton 

Georgia, Piedmont area, diabase : Lester

2 

Greenland, Kap Daussy, differentiation :

Vincent

New Hampshire, Woodsville quadrangle, metamorphosed: Billings 2 

New York, Ithaca area, peridotite:

Broughton

Oregon, Columbia River basalt: Waters 

Cornucopia gold district: Frederickson 

Pennsylvania, Safe Harbor, diabase:

Chapman, R. W. 

Quebec, LaCorne Township, pegmatite:

Derry 1 

Texas, Rockwall area, clastic dikes,

origin : Monroe

Vermont, Woodsville quadrangle, metamorphosed : Billings 2 ( 

Dinosauria. See Reptilia. 

District of Columbia. 

Geologic maps. 

General: Carr

Rock Creek Park, sketch map : Fellows 

Historical geology.

General geology : Carr 

Mineralogy.

Germanium, in lignite : Stadnichenko 

Petrology.

Rock Creek Park: Fellows 

Physical geology.

Earth crust, layer study by explosive

shots: Tuve 1

Dolomite.

Acid etching: Lamar.

Colorado, South Canyon Creek area:

Bass 2

Missouri, Marshfleld area, chemical

analysis: Keller 4

Nova Scotia, Upper Musquodoboit Valley : Cameroii, J. R. 1

Ore distribution, influence of permeability : Ohle

Permeability, determination : I_,ocke

Porosity, determination: Locke

Domes. See also Salt domes.

MiSSOUri, Crooked Creek dome : Hendriks

Pennsylvania, Henclerson saome" 0ori|m:

Fettke 2

Dominican Republic.. See also West Indies. 

Economic geology.

Iron, Maim6n-Hatillo district: Koschn win n 1

Nickel, Maim6n-Hatillo district: Koschmann 1

Dominican Republic Continued 

Geologic maps.

Maim6n-Hatillo district: Koschmann 1 

Historical geology.

Maim6n-Hatillo district: Koschmann 1 

Paleontology.

Gastropods, Cibao Valley, Miocene:

Ramlrez 

Pelecypods, Cibao Valley, Miocene:

Ramfrez 

Petrology.

Maim&n-Hatillo district: Koschmann 1 

Physical geology.

Cordillera Central, tectonics: Weyl, R.

1 

Drainage changes. See also Glacial geology ;

Physiographic geology. 

Indiana, Bloomington area: Wayne 1

Lost River: Malott 

Kansas, central, Pleistocene: Fent 1 

South Dakota, Pleistocene: Flint 1 

Drainage patterns, use in airphoto identification of soils and bedrock: Parvis 

Drumlins, New Hampshire, map : N. H. State

Plan. Dev. Comm. 

Dunes.

Michigan, Sleeping Bear dune, erosion :

Gates

Quebec, Mont Carmel: Osborne 1 

Dynamic geology. See Physical geology. 

Earth.

Atmosphere, origin : Rubey 1 

Earth tides: Nishimura 

Evolution: Slichter . 

Heat: Benfleld 2 

Hydrosphere, origin : Rubey 1 

Origin : Page, T. ; Slichter 

Pre-Cambrian rocks : Hurley 2 

Crust.

Atlantic Basin, seismic refraction measurements : Ewing 2 

Constriction theory: Malaise

Contracting continents, theory:

Wheeler, R. R. 5 

Contracting earth theory, -effect on

geological features : Wilson, J. T. 4 

Orustal layering, submarine, evidence

from Rayleigh waves : Ewing 4

General: Bucher 1; Nishimura 

Geologic age : Muench 2 

Granitic layer, age: Verhoogen

Island arcs, relation to contracting

earth theory : Scheidegger 2 

Layer study by explosive shots : Tuve 1

Layers, seismic investigation : Tuve 2

Ocean basin, structure: Leet 2

Orogeny : Bucher 2

Structure in continents: Gutenberg 1

Tectonic movements, rhythm : Umbgrove

Tectonic theory : Loiigwell 1

Interior.

Composition : Birch 3 ; Bowen 6

Primitive: Urey 2

General: Elsasser 1; Gassmann;

Mitchell, R. C. 

Longitudinal waves through the earth's

core; Denson, M. E.
INDEX 309

Earth Continued 

Interior Continued

Motion, cause : Blsasser 2

Seismic waves reflected at earth core:

Mariner 

Temperature.

Geothermal history : Benfleld 1 

Earthquakes. See also Seismology. 

Alaska, 1939-48: Merrell 

British Columbia, Queen Charlotte Islands, microbarograph record: Heinrich, R. R. 4 

California : Herrick 1, 2, 3 ; Romney 1,

2, 3 ; Tocher 1, 2 

Cape Mendocino : Byerly 2 

Longitudinal waves, velocity: Gutenberg 4

Southern: Dehlinger 

Connecticut, eastern : Foye 

Deep-focus, wave amplitudes : Ergln 1 

Determination of direction of faulting:

Hodgson, J. H. 2

First motions, distribution by : Byerly 1 

Florida, southern, effects on ground water : Parker, G. G.

Hawaii, Kilauea Caldera subsidence, December 1950 : Finch 4 

Mauna Loa eruption, 1949 : Finch 3 

Mississippi Valley, Lower: .Waterways

Expt. Sta. 

Missouri, Mississippi Valley, June 30,

1947 : Heinrich, R. R. 1 

Ste. Genevieve fault zone : Heinrich,

R. R. 2 

Nevada: Romney 2, 3; Tocher 1, 2

Mina, fault direction : Thomas, R. P. 

North America : Gutenberg 2 

Oregon, relation to engineering projects :

Smith, W. D. 

P and S waves, travel time anomalies :

Venker 

Quebec, St. Lawrence earthquake, 1925 :

Hodgson, E. A, 

Rock creep : Benioff 1, 2 

Shallow, patterns: Anonymous 3

T phase: Tolstoy

Submarine, Airy seismic phase : Press 

United States, 1947: Murphy

1948 : Roberts, E. B. 

Washington, 'April 1949 : Nuttli 

West Indies, Caribbean volcanic .arc:

MacGregor

Seismic waves : Coulomb 

Echinodermata. See also Crinoidea; Invertebrata.

Cuba : Brodermann 1; Sanchez Roig 1 

Cystoidea, Ordovician: Bassler 1 

Mexico, Colimu, Cretaceous : MaldonadoKoerdell 7

Gulf of California islands : Durham 1 

Lower California : Durham 1 

Echinoidea. See Echinodermata. 

Ecology, Massachusetts, Cape Cod Bay, Foraminifera facies : Phleger 2

Economic geology (general). For areal, see 

also the subheading Economic geology under the various states and 

countries; See also Mineral deposits and the particular products. 

Bibliography : Miller, R. B. 

Colorado, Front Range: Lovering 1 

Epithermal deposits, origin: Schmitt

1, 4 

Gepchemical prospecting for ores:

Hawkes 1 ^ 

Gold-quartz veins, ribbon structure:

Dougherty 

Iron ores, pre-Cambrian, origin : Snkamoto 

Lead ore, origin, isotope data : Cannon,

R. S. 

Mineral deposits, textbook: Bateman,

A. M.

Mineral exploration : Gidel 

Mineralization, field testing, trace elements : Chisholm 3 

Ore deposits, hydrothermal alteration:

Schwartz

Hypogene, classification : Schmitt 5 

Origin : Brown, J. S. 2; Schmitt 3 

Relation to intrusives : Gross 

Statistical estimation: Lasky, S. G. 5 

Ore exploration : McLaughlin, D. H. 1;

Nolan ; Peale ; Wisser 1 

Biogeochemical methods : White, W. H. 

Geophysical methods: Evans, J. H'. 

Ore metal dispersion, Tintic district,

Utah: Morris 

Ore mineralization, Homestake gold

mine: Noble 1 

Ore textures : Bastin 2 

Pegmatites : Tyler, P. M.

Grade and reserve determination:

Page, L. R. 3 

Petroleum, Gulf Coast, continental shelf:

Carsey

Reserve estimates : Weeks, L. G. 

Radioactive minerals : Bain 1 

Radioactivity and mineral deposits:

Keevil

Rock alteration : Butler, B. S. 2 

Geochemistry: Lovering 3 

Ore search : Bowditch ; Burbank 2 ; 

Butler, B. S. 2, 3 ; Koschmann 2 ; 

Lasky, S. G. 3 ; Lovering 3; Sales 

2 ; Schmitt 2 ; Stringham 1; Vanderwilt

Problems: Kerr, P. F. 1 

Symposium : Van Tuyl, F. M. 

Volcanic areas : Burbank 1 

Sedimentary mineral deposits : Brown,

J. S. 3 ; McKelvey 1 

Stratigraphic convergence: Wheeler, R.

R. 2 

United States, mineral production, by

rock classes : McKelvey 3 

Vein contours, to show structural control of ore bodies : Mills
310 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Elements. 

.Geochemistry: .Rankama 

Germanium, in lignite, District of Columbia : Stadnichenko 

Igneous rocks, spectrographic determination : Fairbairn 3 

In garnet: Jaffe 2 

In pyrite, relation to temperature of deposition : Hawley 3 

Magma crystallization : Osborn 1 

Minerals in medicine : Delario 

Oxygen, in rocks, reference for petrographic calculations: Perrin 

Phosphorus: Farr 

Precious metals in minerals, spectrographic determination : Hawley 4 

Radium content, meteorites : Davis, G. L.

Ultramaflc rocks : Davis, G. L. 

Rare, in igneous rocks : Ahrens, L. H. 5 

Silicate rocks, spectrochemical analysis :

Ahrens, L. H. 1

Vanadium, occurrence: Bertrand 

Yttrium, in garnet: Jaffe 2 

Engineering geology.

Aggregates, for concrete: McConnell 1;

Rexford

Sedimentation and: Rhoades 

Arizona, Boulder Canyon area: U. S.

Bur. Reclamation 

Beach engineering : Krumbein 1 

California, Delta-Mendota Canal area:

Reiche 2

Electra tunnel: Wiese 1 

Friant-Kern Canal, clay foundation :

Logan, J. A1. Merced County dams : Treasher 

Oakland, Broadway Tunnel: Page,

B. M.

Pine Flat Dam : Holdredge 2 

San Francisco area, borings: Calif. 

Univ. Inst. Transportation and 

Traffic Eng.

San Francisco Bay: Trask 5 

West Point tunnel: Wiese 1 

Construction material maps: Byrne, 

F. E. 1

Dams, construction: Burwell, E. B 2 

Nesbitt

Folsom Dam, California: Kiersch 2 

Geologic data for design -. Content

Harlan County, Nebraska: Happ 2 

Hungry Horse Dam, Montana:

Harshman

South Holston, Tennessee: Moneymaker

Debris control : Doage, B. H.

Earth dams I Middlebrooks

Earthflow and strip mining I Savage,

C. N.

Earth-work, geochemistry '. Forbes 

Faults : LiOuderback 

Foundation problems: Harned; Phiibrick

General: Content

Geologic mapping of tunnels : Waggoner 

Geologist, status: Burwell, E. B. 1

Engineering geology Continued

Ground water hydrology : Meinzer 2 

Harbor sedimentation: Caldwell, J. M. 

Highway construction : Bean ; Cleaves

2 ; Horner ; Matthews 

Geophysical methods : Moore R. W. 

Iowa, in loess : Gwynne 

Ohio: Marshall 

Road cuts in alluvium, enlargement:

Marsell

Hoover Dam : U. S. Bur. Reclamation 

Irrigation canals, silting: Golz6 

Kansas, Decatur County : Byrne, F. E. 4 

Landslides: Terzaghi 2 

Loess, foundation material: Judd 

Louisiana, Lower Red River Valley:

Schultz, J. R.

Mississippi Valley, problems: Turnbull 

Missouri River Basin, problems: Dowling 

Nevada, Boulder Canyon area: U. S.

Bur. Reclamation. 

New York, Brooklyn-Battery tunnel:

Fluhr 2

Catskill Aqueduct: Sanborn 

Delaware Aqueduct: Sanborn 

Openwork gravel: Gary 1 

Oregon, McNary Dam site, artesian

horizon: Thompson, T. F. 

Petroleum industry : Heald, K. C. 1 

Relation to irrigation engineering:

Dirmeyer

Reservoir sedimentation : Fry 

Scope and responsibilities : Dirmeyer 

Sedimentary rocks, stress interpretation : McKinstry 

Sediments, strength, water content, and

grain size: Trask 4 

Seismology, applied : Leet 1 

Shoaling problems : Patterson, C. B. 

Shore control problems : Mason, M. A. 

South Dakota, Fort Randall Dam,

artesian conditions : Johnston, F. T. 

Frost action on Niobrara chalk:

Trantina

Stream channel control: Happ 1 

Symposium : Van Tuyl, F. M.

Berkey Volume : Geol. Soc. Am. 

Tennessee Valley projects : Tenn. Valley

Authority

.Tunnel construction: Sanborn 

Soft ground : Terzaghi. 1

Washington, Ross Dam, vibration

studies : Coombs 1 

Seattle, landslide problem : Mackin 1

Eocene. See Tertiary.

Eonnrx action. See Wind work.

Erosion.

BeaCh, bibliography: Mich. Univ., Lake

Hydraulics Lab. 

British Columbia, Kamloopg area, sink

holes: Buckham 2 

Continental shelf, origin : Weaver 1

Erosion pavement; Lowdermiik 

Gullying: Peterson, H. V, 

Illinois, bedrock topography : Horberg 1 

Mexico, Paricutin area : Segerstrom
311

Erosion Continued

Michigan, beaches: Brater

Sleeping Bear dune : Gates 

Slopes, slope-angle equilibrium, analysis : Strahler 2 

Utah, Zion National Park, potholes and

channel scrolls : Spitznas 

Watersheds: Brown, C. B. 

Wyoming, Wind River Mts., erosion surfaces : Holmes, G. W. 

Burypterida. See also Arachnida.

Florida, Silurian : Kjellesvig-Waering 2 

West Virginia, Wills Creek formation,

Silurian : Kjellesvig-Waering 1 

Evolution.

Arthropoda: Gregory, W. K.

Aves : Howard, H.

Evolutionary determinism: Simpson 4

Fusulinids, development: White, M. P.

Horse, brain : Edinger 1

Frontal sinus : Edinger 2 

Hystricomorphs, paleogeography : Wood,

A. E. 

Migration of animals from the sea:

Pearse 

Quaternary faunas, subspeciflc advance :

Hooijer 

Rate : Sloss 2 

Theories : Simpson 2 

Tortoises : Williams, E. 

Vaseyanthus, vine : Gentry 

Vertebrata: Gregory, W. K. ; Robertson,

G. M. 

Experimental investigations.

Alunite, therinochemical changes: Gad 

Appalachian deformation: Straley 2 

Aragomte : Gruver 

Calcium carbonate, solution rate: Garrels 

Calcium, orthosilicate, polymorphism :

Bredig 

Carbonate rock, age measurement:

Kulp 4

Carbonates, thermal analysis : Faust 

Clay, alunitic, therrnochem'ical changes :

Gad

Grinding effect: Parkert 

Clinton iron ores, origin : Castaiio 

Crystal synthesis : Waesche 

Feldspars, crystallization data : Bowen

3 -

High-temperature albite: Tuttle 2 

NaAlSiO4-KAlSiO4-Si02 : Schairer 2 

Synthetic, gallium and germanium in :

Goldsmith, J. R. 

Fluosilicates, synthesis: Insley 

Garnet, composition determination:

Levin 2

Synthesis : Hummel

Grossularite, stability relations : Yoder 2 

Gumbotil origin : Hseung 

Igneous rocks, elastic moduli: Hughes 

Iron deposition: Castaiio 

Jadeite : Yoder 1

Limestone strength : Robertson, E. C. 

Longitudinal wave velocities, Paleozoic

rocks, Missouri: Kisslinger

Experimental investigations Continued 

. Marble, petrofabrics: Rosenholtz 1;

Turner 1

Thermal expansion : Rosenholtz 2 

Yule marble, deformation experiments : Turner 3

Meteorite crater formation : Rinehart

Mica, fluorine, synthesis : Hatch 

Grinding effect: Parkert

Mica crystals, synthesis : Insley

Mineral particles, settling behavior: 

Lacabanne

Minerals, electrical resistivity : TelUes 

Thermoelectric power : Telkes

Nepheline-carnegieite transformation: 

Washken

Oil shale as petroleum source beds: 

Ferris

Petroleum, origin : Brooks ; Whitehead 1

Plagioclase feldspar, weathering rate: 

Graham, E. R.

Porosity, sand strata, Pennsylvania: 

Rosenfeld, M. A.

Quartz solubility, high temperatures: 

Morey

Quartzite, formation: Fairbairn 1

Radio wave transmission, geologic aspects : Pullen

Radioactive surface films on minerals : 

Church

Radioactivity, mineral content: Marble 

1

Ripple profiles and water velocity: 

Menard 1

Sediment movement: Menard 3

Sedimentary rocks, seismic velocities, 

field and laboratory measurements : 

Oliphant

Serpentine and talc equilibria : Bowen 5

Silica-water system, solubility: Kennedy 3

Strain waves in rock : Obert

System, CaO-MgO-FeO-SiO3 : Schairer 1 

LioO-AlaOa-SiC^: Roy, R.

Tektites, physical and chemical data: 

Hammond

Thrusting, low angle : Bullock

Water, pressure-volume-temperature relations : Kennedy 1

Waters, Atlantic and Gulf Coastal 

Plains, bicarbonate content: Foster, M. D. 1 

Exploration.

Caves : Hendrix

Geophysical, 1949 review: Kelly, S. F. 1

Gold, prospecting guide : Gardner, E. D.

Mineral, 1949 review: Lasky, S. G. 4

Ore deposits: McLaughlin, D. H. 1; 

Peale; Wisser 1

Photogeology: Guerra Pefla

Saskatchewan, Goldflelds area, radioac-

. tive minerals: Stephens 

Facies.

Louisiana, Gulf Coast, Eocene: Bornhauser

New Mexico, Permian : Wheeler, R. R. 4

Texas, Permian: Wheeler, R. R. 4
312 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Fades Continued

Wyoming, Newcastle sandstone, oil accumulation : Summerford 

Faulting. See also Thrusts and thrusting. 

Alberta, Alexo area: Erdman

Saunders area: Erdman 

Analysis, shearing stress : Wallace 3 

Appalachians, central: Gair 

Arizona, Oak Creek Canyon : Hears 1 

Arkansas, Fort Smith district: Hendricks, T. A. 1 

Blue Ridge Front, fault scarp: White,

W. A. 

California, Antelope Valley area : Wiese

3

Cachuma district: Bverhart 2 

Hungry Valley area : Crowell 1 

Mohawk Valley : Durrell 

Neenach quadrangle : Wiese 2 

Panamint Range : Maxson 2 

Rio Vista: Reiche 3 

Southern, relation to earthquakes:

Dehlinger

Connecticut, Triassic border : Digman 

Earth crust, motion : Nishimura 

Fracture theory : Seigel 

Georgia, Blue Ridge fault scarp : White,

W. A. 

Mississippi Valley, Lower : Waterways

Expt. Sta.

Missouri, St. Glair County : Beveridge 

Montana, western, Tertiary : Pardee 

New York, Hudson Valley, Paleozoic:

Flower 3 

North Carolina, Blue .Ridge fault scarp : White, W. A.

 Hot Springs area : Oriel 

North Dakota, Lignite area, Fort Union

formation : Townsend 

JfOrthweSt Territories, oiauquo T.ake

area : Quinn, H. A. 

Yellowknire greenstone belt: Henderson, J. F. 3 

Nova Scotia, Halifax area: Cameron,

II. L. 1

Ontario, Kenogami Late area; TKOIM.

son 1 

Kirkland Lake area. : Thomson 2

Teck Township: Thomson i 

wright-Hargreaves gold mine, Kirkland Lake area : HopklnS, H.

Panama, Gatun Lake area: Jones, s. M. 

Pennsylvania, Evansville area : Gray, C.

SOUth Carolina, Blue Ridge fault sca^ .

White, W. A.

Tennessee, Ducktown COppfif district.'

Simmons, W. w.

Texas, interpretation from Seismic reflections : Quarles

VerfflOnt, llOrthWest, Oafc HU\ succession, Cambrian : Booth

Virginia, Blue Ridge fault scarp ; White, 

W. A.

Wyoming, Laramie Range, arcuate

faults: Barlow

Snake River region: Eardley 2 

Sweetwater Valley : Bell, W. G.

Yukon, Keno Hill area : Smitheringale

Feldspar.

Adularia, triclinic, optics : Chaisson 

Albite, high-temperature: Tuttle 2 

Optics : Laves 2 

X-ray investigation : Laves 2 

Colorado, Green River shale, authigenic

albite : Moore, F. E. 

Crystal structure: Laves 1 

Crystallization data: Bowen 3 

Microcline, twinning: Laves 3 

New Hampshire : Olson, J. C. 

Plagioclase : Emmons

Anorthite content and index of refraction : Chayes 5 

Composition, X-ray diffraction method : Claisse 

Metamorphic rocks, twinning : Turner

2

Weathering rate : Graham, E. R. 

Plagioclase series, correlation of properties : Poldervaart 

Potash-soda, thermal study: Heald,

M. T. 3 

Synthetic, gallium in : Goldsmith, J. R.

Germanium in : Goldsmith, J. R. 

System, NaAlSiO4-KAlSi04-Si02 : Schairer 2

Twinning: Laves 1 

United States, southeastern, pegmatites :

Parker, J. M. 

Fishes. See Pisces. 

Flat lands, geomorphology, photogeology:

Melton 2

Flint. See Chert. 

Florida.

Economic geology.

Phosphate : Oathcaft, J. B, 1 

Ground water.

Fluctuations : Parker, G. G. 

General: Cooper, H. H.

Karst hydrology : .Tordan, R. H.

Historical geology,

Cenozoic scaim-ents, volume: 

Mesozoic : Applin, P. L.

Mineralogy.

niospfaate deposits, age : MacNeil

Paleontology.

Euryptorida. Silurian : 

ing 2

Foraminifera, CTioffa-teiia, cretaceous:

Maync 2

"JjOGlChartia" Ousnmani., Eocene : Applin, E. E. R. 2

Horse banes, Miocene, fluoT-irie COntent :

Olsen

Mammalia, Pleistocene, MelbOWBe afCB ,' 

Gazin 2

Physical geology.

teaching, pebble phosphate area: Cathcart, J.E. 2

Physiographic geology.

Karst: Jordan, R. H. 

Shore lines, Pleistocene: MacNeil 

Terraces, Pleistocene: MacNeil 

Fluorescene, petroleum exploration: De 

Ment 2
INDEX 313

Fluorlde.

Alabama, ground water: LaMoreaux 3 

Systems, LiF-BeF2 , NaF-BeF2 : Roy, D. M. 

Fluorite.

Colorado, Northgate district, origin:

Steven 

Illinois, formation temperature from

liquid inclusions : Grogan 

Montana : Ross, C. P. 

Utah : Buranek 

Folds and folding.

Alabama, Sequatchie anticline : Rodgers

1

Alberta, Alexo area : Brdman 

, Saunders area : Brdman 

Appalachian system, southeastern United

States: King, P. B. 3 

Appalachians, central: Gair 

Sequatchie anticline : Rodgers 1 

Southern : Stose 3 

Arizona, Oak Creek Canyon, reverse

drag: Mears 1 

Arkansas, Fort Smith district: Hendricks, T. A. 1 

California, Hungry Valley area : Crowell

1 

Newport Beach, Pleistocene, interformational: Emery 5 

Construction of sections, technique:

Stockwell 3 

Maryland, Peach Bottom syncline:

Agron 1

New Mexico, Permian : Wheeler, R. R. 4 

North Dakota, Lignite area, Fort Union

formation : Townsend 

Northwest Territories, Giauque Lake

area: Quinn, H. A. 

Pennsylvania, Evansville area : Gray, C.

Peach Bottom syncline: Agron 1 

Tennessee, Ducktown copper district:

Simmons, W. W. 

Sequatchie anticline : Rodgers 1 

Texas, Permian : Wheeler, R. R. 4 

Vermont, east-central, Paleozoic : White,

W. S. 

West Virginia, northern, pre-Devonian :

Reeves

Wyoming, Flat Top anticline : Carey 

Laramie Range, arcuate folds: Barlow

Footprints. See Tracks and trails. 

Foraminifera.

Atlantic Coast Plain, guide species : McLean 1

Barkerina, Cretaceous : Frizzell 3 

Bibliography : Thalmann 

California, casts : Graham, J. J. 1 

Meganos formation, Eocene : Graham,

J. J. 2, 3

Santa Maria district: Woodring 

Choffatella: Maync 2 . 

Correlation by, range chart: Bursch 

Correlation chart, fusulinids, mid-Continent area : Kapner 

Cribrostomoidcs, Cretaceous: Frizzell 3 

Cuba, Cenozoic: Bermuclez 1 

Eocene: Reichel 2 

Oligocene-Miocene : Reichel 1

Foraminifera Continued 

Delaware: McLean 1 

Endothyroid, Mississippian : Zeller 

Eponides: Hofker

Fusulinids, development: White, M. P. 

General, popular account: Bermudez '2 

Georgia: McLean 1 

Gulf Coast, catalogue of diagnostic

species: McLean 2 

Tertiary, guide zones: McLean 3 

Gulf of Mexico, northwest: Phleger 1 

Hantkenina, Eocene, Barbados : Bronniman

Trinidad: Bronniman 

Index: Thalmann 

Iowa, faunal zones, Pennsylvanian:

Thomas, L. A. 2 

Kansas, Kiowa shale, Cretaceous: Loeblich 3 

Lagenidae, South Dakota, Jurassic:

Loeblich 1

"Lockhartia," cushmanl, Tertiary, Florida : Applin, E. E. R. 2 

Maryland : McLean 1

Crisfleld well: McLean 4 

Massachusetts, Cape Cod Bay, facies:

Phleger 2 

Mexico, Comalcalco well, Tertiary : Alvarez A., J.

Gulf of California, Pliocene, Pleistocene : Natland 1 

Tamaulipas, Oligocene: Meneses de

Gyves 

Tampico-Tuxpan area, Oligocene:

Lim6n-Guti6rrez 

Mississippi, Cretaceous, list: Miss. Geol.

Soc.

Missouri, Ste. Genevieve County, Silurian : Dunn 

Montana, Ellis formation, Jurassic: Lalicker

Jurassic: Loeblich 2 

New Jersey : McLean 1 

North Carolina : McLean 1 

North Dakota, Jurassic: Loeblich 2 

JUv'becularia,, Texas, Permian: Johnson,

J. H.

Oregon, Cape Blanco, Cenozoic: Bandy 

Paleoecology, determination : Emiliani 

Planularia planotrochiformis, Cretaceous : Hussey 1

Planulina palmerana: Garrett, J. B. 

PtychocladAa, Paleozoic: Elias 3 

Pullenia duplicata, types: Stainforth 1 

South Carolina: McLean 1 

South Dakota, Sundance formation,

Jurassic: Loeblich 1 

Systematic descriptions: Ellis 

Texas, Cretaceous : Applin, E. E. R. 1 

Fusulinids, Moran formation, Permian : Henderson, G. G. 

Utah, Wasatch Mts., fusulinids, Pennsylvanian : Thompson, M. L. 

Virginia : McLean 1 

Washington, fusulinids, Permian : Danner

Willapa River Valley, Tertiary : Rau 

Wyoming, Jurassic: Loeblich 2
314

Formations. See Geologic formations ; Geologic formations, lists, sections, 

tables.

Fossils. See Paleobotany ; Paleontology. 

Fractures, Saskatchewan, radioactive occurrences : Alien, R. B.

Fulgurites, Michigan, Lake Michigan : Hurd 

Fusulinidae. See Foraminifera. 

Garnet.

Alaska, Wrangell area : Bressler 

Composition determination : Levin 2 

Mexico, Lake Jaco, Chihuahua : Knowl-

* ton

Minor elements : Jaffe 2 

New York, Adirondack Mts., hornblende

rims : Levin 3

Origin : Buddington 1 ; Levin 1 

Spessartite-yttrogarnet system, substitution of aluminum for silicon : 

Yoder 4 

Stability relations, experiments : Yoder

2

Synthesis : Hummel 

Yttrium in : Jaffe 2 

Gastropoda. See also Mollusca ; Invertebrata.

Anticlimax: Pilsbry 

Dominican Republic, Cibao Valley, Miocene : Ramlrez 

United States, . mid-Continent, Pleistocene : Leonard, A. B. 1 

Gems and gem materials.

Alexandrite, absorption spectrum : Anderson, B. W.

Arctic America : Field, D. S. M. 3 

California : Henry

Canada, Baffin Island : Field, D. S. M. 3 

Emerald, absorption spectrum : AnderSOn, B. W.

Diamond, Slijper : Kohn 

Twinning : Slawson 1 

Idaho : Carpenter, J. T. ; Dake 1 

Jadeite, Clear Creek, California : Inman, W. U.

Maryland, williamsite: Raymond, C. L.

Montana : Date 1

Nevada, opal : Hodson

New Jersey, carnelian : Zodac 2

North-west Territories, Baffin Island :

Field, D. S. M. 3 

Oregon : Dake 1

Pearls, X-ray examination : Wild

Physical properties: wiggieswortn

Roman book of precious stones ! Ball

North Carolina, ruby : Smith, M.

Ruby: Smith, M.

Synthetic : Frondel, C. 7

e, Star, synthetic : lrron<iel, C. 1

United States: Mclntosh

Washington : Dake 1 ; Fernqnist

Williamsite, Maryland : Raymond, C. L.

Wyoming : Dake 1

Zircon, Renfrew County, Ontario : Field,

D. S. M. 1 

Genesis of ores. See Mineral deposits, origin.

Geochemistry.

Bone: Hendricks, S. B.

British Columbia, biogeochemical investigations, history : Warren, H. V. 2 

Gold, silver in vegetation: Warren,

H. V. 1

Plant anomalies and ore deposits: 

White, W. H.

Construction materials in earthwork ; 

Forbes

Copper dispersion, San Manuel deposit, 

Arizona : Lovering 4

Dithizone field test: Chisholm 1

General: Rankama

Germanium, in lignite, District of Columbia : Stadnichenko

Ground water : Hem 2

Guano minerals: Hutchinson, G. E.

Heavy metal detection, dithizone field 

test: Warren, H. V. 3

Mineralization, field testing, trace elements : Chisholm 3 

' Phosphate : Hendricks, S. B.

Prospecting: Hawkes 1, 2 ; Sokoloff 

Mississippi Valley : Fowler, G. M. 2

Rock alteration : Lovering 2

Strontium, cycle: Odum

Tantalum, Harding pegmatite, New 

Mexico : Montgomery"

Tennessee, Ducktown district, prospecting : Kingman

Trace elements, Santa Rita, New Mexico : Graf 2

Trace metals in rocks, determination : 

Riddell

Tri-State district, biogeochemical investigations : Harbaugh

Utah, Park City district, prospecting ; 

Gilbert, R. E.

Zinc prospecting, soil analysis : Fulton 

Geologic formations.

Allentown formation, Cambrian, Pennsylvania : Howell, B. F. 2

Aplington formation, Mississippian, 

Iowa : Stalnbrook 2

Banff formation, Alberta: Beales 

catoctin formation. Virginia : Bloomer 

2

Charles formation, Mississippian, Montana : Hadley, H. D.

Chemung formation, Pennsyivama-Ne-w

York : Harding, R. W.

Chilhowee series, vtr{rlnia : Bloomer 2

Denmar formation, Mississippian, west

Virginia: Wells, D.

Dry,Creek Shale, Cambrian, Montana: 

Lochman 4

Bxshaw formation, Alberta : Beales

Fearn Springs formation, Tertiary,

Mississippi: Mellen 

Green River formation, Eocene, Bridger

Basin, Wyoming :. Donovan 

Hillsdale formation, Mississippian, West

Virginia: Wells, D.
INDEX 315

Geologic formations Continued

Hungry Valley formation, Pliocene,

California: Crowell 1 

Laramie formation, Colorado : Gude 

Leithsville formation, Cambrian, Pennsylvania : Howell, B. F. 2 

Limeport formation, Cambrian, Pennsylvania : Howell, B. F. 2 

Llvingston formation, Cretaceous-Tertiary, Montana : Richards, P. W. 

.Lynchburg formation, Virginia : Bloomer 2 

Maroon formation, South Canyon Creek

member, Colorado : Bass 2 

Martinsburg formation, Ordovician,

Pennsylvania : Moseley 

McCraney limestone, Mississippian,

Iowa, Illinois : Stainbrook 1 

Mt. Simon sandstone, Illinois: Templeton

Ochoa series, Permian : Donegan 

Rexroad formation, Pliocene, Kansas:

Hibbard 2

Rocky Mtn. formation, Alberta: Beales 

Rundle formation, Alberta: Beales 

Smackover formation, Jurassic, Arkansas : Goebel; Vestal, J. H. 

Snowy Range formation, Cambrian,

' Montana : Lochman 4 

Stanley shale, Carboniferous, Arkansas,

Oklahoma : Hass 

Swift Run formation, Virginia : Bloomer 2 '

Twin Creek formation, Jurassic, Wyoming : Imlay 2 

Wasatch formation, Eocene, Bridger

Basin, Wyoming: Donovan 

Geologic formations, lists, sections, tables. 

See also Correlations; Historical 

geology.

Alabama, eastern, Selma group, Cretaceous : Eargle

Alberta, Alexo area: Erdman 

Banff area, Paleozoic : Beales 

Callum Creek map-area: Douglas 1 

Crowsnest Pass-Jasper area, Devonian : deWit

Daniels Flats area, Cretaceous: Irish 

Edmonton area, Devonian: Imperial

Oil, Ltd.

Gap map-area : Douglas 1 

Langford Creek map-area: Douglas 1 

Mount Head area: Douglas 2

Paleozoic: Beales 

Northern : Hume 

Saunders area: Erdman 

Sunwapta Pass area, Paleozoic:

Severson 

Arizona, Bisbee district: Hogue

Boulder Canyon area: U. S. Bur.

Reclamation

Globe-Mianji district: Peterson, N. P. 

Kaibab limestone: Price, W. E. 2 

Little Dragoon Mts.: Cooper, J. R. 

Northeastern : Bradish 1 

Superior area: Wilson, E. D. 5

Geologic formations, lists, sections, tables 

Continued

Arkansas, Cairo oil field : Goebel 

Franklin County, No. 1 Barton well:

Lantz

Jefferson County : Klein 

Southern : Vestal, J. H. 

Atlantic Coastal Plain, Cretaceous, Tertiary : Spangler 1

Basin Range province, southern, Paleozoic : Longwell 1 

British Columbia, Groundhog coalfield,

Jurassic-Cretaceous : Buckham 1 

Northeastern : McLearn 

. Salmo area : Little 

Vancouver Island, west coast: Jeletzky 2

California, Anaverde formation, Pliocene : Axelrod 4

Blue Lake quadrangle: Manning 

Hungry Valley area, Tertiary-Quaternary : Crowell 1 

Kern Bluff oil field: Corwin 

Los Angeles County : 'Olmsted 

Macdoel quadrangle : Williams, H. 

Needles area, San Bernardino County :

Vitaliano

Neenach quadrangle : Wiese 2 

Qiiien Sabe quadrangle: Leith, C. J. 1 

Ridge Basin group, Pliocene: Axelrod 5

San Ardo oil field: Baldwin, T. A. 

San Dieguito area: Jahns 2 

Santa Barbara County: Dibblee 

Santa Maria district: Woodring 

South Belridge oil field : Ritzius 

Canada, interior plains : Link, T. A. 3 

Colorado : Dobbin 1

Aspen lead-zinc district: Volin 

Dinosaur National Monument: U. S.

G. S. 1 

Front Range, pre-Pennsylvanian:

Maher 1, 2

McCoy area: Sheridan 

Pennsylvanian : Bradish 2 

Piceance Creek Basin : Duncan 

Rangely oil field : Patton, H, L. 

San Juan Basin : Barnes, F. C. 

Cretaceous : Umbach 

Permian : Read 1

South Canyon Creek area : Bass 2 

Southwestern : Bradish 1 

Uinta Basin, Mesozoic: Stokes 1 

Wellsville area, Paleozoic : Rold 1 

Western, Paleozoic: Bass 1 

Cuba, Cenozoic: Bermudez 1 

Greenland, East, Cretaceous: Maync 1

Upper Devonian : Jarvik 3 

Kap Oswald area, pre-Cambrian-Cambrian : Schaub

Northeast, late Paleozoic : Frebold 

Gulf Coast, continental shelf : Carsey 

Gulf of St. Lawrence, Aguanish-Washicoutai Bay area : Claveau 

Idaho, Snake River Plains: Bayless
316 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Geologic formations, lists, sections, tables 

Continued

Illinois, Henry County : Horberg 3 

Northern, Mt. Simon sandstone : Templeton

Pennsylvanian coal beds : Kosanke 1 

Illinois basin, cross section : Workman 2 

Indiana, Boone County : Brown, B. A. 

Devonian : Hare.

Jasonville quadrangle : Wier, C. E. 1 

Mississippian : Hare 

Pennsylvanian : Wier, C. E. 2, 3 

Putnam County, Mississippian:

Esarey 2

Silurian : Esary 1; Hare 

Southeast, Ordovician : Kottlowski 2 

Iowa, Aplington formation, Mississippian : Stainbrook 2

Kansas, Decatur County, Tertiary-Recent : Byrne, F. E. 4 

Eskridge shale, Permian : Wells, J. D. 

Jewell County: Byrne, F. E. 2 

Pliocene, Pleistocene : Hibbard 2 

Republic County : Byrne, F. E. 3 

Rice County : Fent 2 

Tonganoxie Valley, Pennsylvanian :

Lins 

Kentucky, Bluegrass region : Hamilton,

D. K.

Elk Lick Valley : Jillson 6 

Island area, Carboniferous : .Tacobsen 

Jackson Purchase region : Freeman 

Sleepy Hollow, Ordovician : Conkin 2 

Utica oil field : Bruce, C. H. 

Louisiana, Gulf Coast oil fields, Eocene :

Bornhauser

Manitoba, Devonian: Baillie 

Gordon White no. 1 well: Allan 2

Lynn Lake area : Allan 1

Wanipigow River area: Davies, J. F. 

Maryland, coal measures : Waag6 

South Mountain anticlinorium : Cloos

1 

Mexico, Antimonio district: Guiza

Cerro Pel6n area, Veracruz: Benavides G. 2 

El Botc mine area, Zacatecas : Mapes

Vasquez

Guerrero, northeast: Guzman .1

Gulf Of California, areiv : A.ntJ ei-soT»,

C. A. 2

Ccnozolc : Durham 1 

. Jurassic : Elizondo ; Maldonado-Koerdell 1

Mornllllo field : CastillAn B.

Poza Rica area, well sections: L6pez

Ramos 1 

Salina Basin, Tenuantepec Isthmus :

Alvarez 3

Tehuantepec Isthmus : Garcfa Tijerina

Teziutlan, Jurassic and Cretaceous 

cross section : L6pez Ramos 2

Mid-Continent, Cambro-Ordovician: Bartram 

Upper Paleozoic: Wheeler, R. R. 1

Geologic formations, lists, sections, tables 

Continued

Mississippi, Brookhaven oil field : Womack

Winston County, Tertiary : Mellen 

Missouri, Pennsylvania!!: Cline 1;

Greene 

Southwestern, Mississippian: Kaiser,

C. P. 

Montana : Billings Geol. Soc.

Belt series, pre-Cambrian : Perry,

E. S. 1

Blacktail Deer Creek formation, Miocene : Hibbard 3 

Button Butte-Forestgrove area:

Gardner, L. S. 

Cambrian : Lockman 1 

Camp Creek area, pre-Cambrian:

Heinrich, E. W. 2 

Highland Mts. : Sahinen 

Hobson area: Vine

Horseshoe Hills, Paleozoic: Lochman 4 

Little Rocky Mts., Upper Cambrian :

Lochman 2

Livingston, Paleozoic : Richards, P. W 

Southeastern, Paleozoic, subsurface :

Leatherock

Southwestern : Klepper 

Three Forks-Whitehall area : Perry,

E. S. 2 

Nevada, Boulder Canyon area : U. S.

Bur. ReclamationNew Hampshire, Mt. Pawtuckaway

quadrangle : Freedman 2 

New Mexico : Bradish 1

Capitan reef, Permian : Adams, J. E. 

Central mining district: Lasky,

s. G. i 

Coal areas, Cretaceous-Eocene : Read

3 . 

Northern : Northrop 

Pennsylvanian : Bradish 2 

- San Juan Basin : Barnes, F. C.

Cretaceous: Umbach

Permian : Read 1

Santa Rita area : Graf 2 ; Kerr, 

P. F. 2

Woodford shale, Devonian: Ellison,

S. P. 2

New York, central, Paleozoic: Willard 4

Chenango County well, section : Donnerstag

Hanover shale, Devonian; Pepper

Rensselaer County : Cushman 

Wiscoy sandstone, Devonian : Pepper

Newfoundland, Bonavista area: Christie 

North Carolina, Coastal Flam: Richards, H. G. 3

Hot Springs area : Oriel

Northwest Territories, Giauque Lake

area : Quinn, H. A. 

Imperial River Canyon, Paleozoic:

Laudon 

Ohio, central, Paleozoic: Swaip
INDEX 317

Geologic formations, lists, sections, tables 

Continued

Oklahoma, Anadarko Basin, western, 

Carboniferous: Meholin

Arbuckle limestone: Ham 1

Ardmore basin, Paleozoic: Peterson, 

E. T.

Des Moines series, Pennsylvanian: 

Scruton

Bola field, Paleozoic: Swesnik 2

Golden Trend area, Paleozoic : Swesnik 1

Ouachita Mts.: Okla. City Geol. Soc.

Pennsylvanian : Wright, L. M. 

Ontario : Hurst 1

Echo Township : Armstrong, H. S.

Perth area: Dugas

Porcupine area : Hogg

Skead Township : Hewitt, D. F. 1 

Panama, Gatun Lake area: Jones, S. M. 

Pennsylvania, Bradford quadrangle, 

subsurface Paleozoic : Hoffacker

Eastern, Cambrian : Howell, B. P. 2

Mt. Carmel quadrangle: Rothrock, 

H. E. 1

Northeastern, Paleozoic: Willard 4

Turnpike area : Cleaves 1

Western, Paleozoic : Fettke 1 

Quebec, Beetz Lake area, Saguenay 

County: Grenier 1

Belleterre area, Guillet Township: 

Auger 1

Denholm-Hincks area, Gatineau 

County : Mauffette 1

Duverny and Landrienne Townships, 

Abitibi-East County : Weber

Gaspe" Peninsula, eastern : McGerrigle

Gulf of St. Lawrence, Mingan-Aguanish area: Longley

He'be'court Township, Abitibi-West 

County: Graham, R. B. 1

Lesueur Township, Abitibi-East County : Graham, R. B. 2

Sagard-Cailleres area : Ross, S. H.

Tfimiscamie Mts. area, Mistassini territory : Neilson

South Dakota, Pierre shale, Cretaceous : 

Crandell

Subsurface : S. Dak. G. S. 

Tennessee, east: Oder

Western, subsurface cross section:

Schneider, R.

Texas, Anadarko Basin, western, Carboniferous : Meholin

Brazos County, Rock Prairie sandstone : Mathews, A. A. L.

Capitan reef, Permian : Adams, J. E.

Carboniferous cross section, Runnels 

and Coke Counties : McFall

Carthage gas field, Cretaceous: W11-, 

helm

Franklin Mts.: Nelson, L. A.

Llano region : Abilene Geol. Soc. 

Carboniferous : Plummer, F. B.

Ordovician : Bartram

Scurry County : Van Siclen

Geologic formations, lists, sections, tables 

Continued

Texa s Con tinued

Todd Deep field : Imbt, R. F.

Troup district: Stenzel'l

Woodford shale, Devonian: Ellison,

S. P. 2 

United States, eastern, Triassic: McLaughlin, D. B. 1 

Utah, Clay Basin gas field : Fidlar 4

Daggett Chief manganese deposit: 

Helm

Dinosaur National Monument: U. S. 

G. S. 1

Iron County, eastern : Gregory, H. E.

Navajo sandstone, Jurassic: Kiersch, 

G. A. 1

Saupete-Sevier district: Spieker

Southeastern: Bradish 1 

Paleozoic: Bass 1

Split Mountain area, Paleozoic and 

Mesozoic: Untermann

Uinta Basin, Mesozoic : Stokes 1 

Vermont, Bradford-Thetford area : Hadley, J. B.

Castleton area: Fowler, P.

East-central, Paleozoic: White, W. S.

Northwest, Oak Hill succession, Cam-

. brian : Booth , 

Virginia, Blue Ridge province, Cambrianpre-Cambrian : Bloomer 2

Constal Plain : Roberts, J. K. 3

Jonesville district: Miller, R. L. 1

Piedmont province : Brown, W. R.; 

Roberts, J. K. 3

Southwest: Oder

Valley and Ridge province: Edmundson 

West Virginia, Cambrian : Woodward 1

Northern, Paleozoic : Reeves

Southeastern, Mississippian: Wells,

D.

Wyoming, Baxter Basin gas fields : Fidlar 2

Beaver Divide area, Tertiary: Van 

Houten

Bridger Basin, Tertiary : Donovan

Cambrian : Lochman 1

Coal areas, Cretaceous-Eocene : Berryhill

Gillette area : Littleton 2

Kemmerer coal field : Hunter, W. S.

Lander area : Thompson, Raymond M.

Laramie Basin : Littleton. 3

Montana group, Upper Cretaceous, 

Rock Springs uplift: Hale, L. A.

Southwest: Wyo. Geol. Assoc. 1 

Paleozoic: Thomas, H. D. 

Triassic: Kummel

Twin Creek limestone, Jurassic: Imlay 2

Upper Cretaceous cross section, southwest to Yellowstone Park : Love 4

Wind River Mts., southwest flank, 

Paleozoic: Love 3

980682° 52- -21
318 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Geologic history. See also Paleoclimatology ; 

Paleogeography.

Arizona, Sycamore Canyon, Cenozoic: 

Price, W. B. 1

California, Hungry Valley area:

Crowell 1

Santa Barbara County : Dibblee 

Santa Maria district: Woodring

Capitan barrier reef, Texas and New 

Mexico, Permian : Adams, J. B.

Colorado, Denver Mtn. Area: Tweto 

Front Range : Lovering 1 

San Juan Basin : Beaumont

Colorado River Basin: U. S. Dept. Interior

Columbia-Snake River lava plateau, 

northwestern United States : Fenton

District of Columbia : Carr

Grand Canyon of the Colorado: Torre 

Mandrazo

Great Smoky Mtn. region, North Carolina-Tennessee : King, P. B. 1, 2

Kentucky, Button Knob area: Jillson 5

Labrador: Faessler

Louisiana, Lower Red River Valley: 

Schultz, J. R.

Mexico, Gulf of California area : Anderson, C. A. 2

Michigan, Upper Peninsula, popular account : Vietzke

Mississippi, Carroll County, Tertiary, 

Quaternary : Vestal, F. E.

Nebraska, Blkhorn River Valley, Pleistocene : Frankf orter

New Mexico, San Juan Basin: Beaumont

New York, Long Island : de Laguna 1

North Carolina, Coastal Plain: Richards, H. G. 3

Ontario: Hurst 1

Panama, Gatu'n Lake area : Jones, S. M.

Rocky Mtn. region, Paleozoic, Mesozoic: 

Heaton

Sea-water: Rubey 2 

.Utah, Canyon Range: Christiansen 2 

Uinta Basin : Childs

Vermont, Castleton area : Fowler, P.

Virginia, Piedmont province: Brown, 

W. R.

Geologic mapping.

Ground water observations, use : Foose

Pennsylvania, history : Willard 3 

Symbols: Postel 1

Geologic maps. See also the subheading 

Geologic mttps, under the various 

states and countries.

Alabama, coastal area : Carlston 1

Eastern, Selina group, Cretaceous :

Eargle

Index: Boardman 1 

Madison County: LaMoreaux 2 

Tennessee Valley area : LaMoreaux 1 

Alaska, Prince William Sound district :

Mofflt 1

Wrangell district: Bressler 

Wrangell garnet mine: Bressler

Geologic maps Continued

 Alberta, Alexo' area: Brdman

Callum Greek map-area: Douglas 1

Coal areas : MacKay 1

Daniels Flats area: Irish

Gap map-area: Douglas 1

Langf ord Creek map-area : Douglas 1

Mount Head area: Douglas 2

Saunders area: Erdman 

Arizona, Bagdad area: Anderson, 

C. A. 1

Bisbee district: Hogue

Boulder Canyon area : U. S. Bur. Reclamation

Copper King mine : Anderson, C. A. 1

Index: Boardman 2

Iron King area, sketch map : Creasey 2

Johnson Camp area: Cooper, J. R.

Old Dick mine: Anderson, C. A. 1

St. Anthony area: Creasey 1

Superior area: Wilson, E. D. 5

Wallapai district: Dings 

Arkansas, Batesville manganese district : U. S. G. S. 2

Fort Smith district: Hendricks,

T. A. 1

Axel Heiberg Island : Troelsen 2 

British Columbia, discussion: Daly,

R. A. 2 

 Groundhog coalfield : Buckham 1

Mining areas : British Columbia Dept. 

Mines

Northeastern : McLearn

Salmo area : Little

Vancouver Island, west coast: Jeletzky 2

Vancouver North area: Armstrong, 

J. B.

Zeballos area : Hoadley ; Stevenson 1 

California, Antelope Valley area : Wiese 3

Blue Lake quadrangle : Manning

Cachuma district: Everhart 2

Delta-Mendota Canal area: Relche 2 

Gaviota quadrangle: Dibblee 

Hungry Valley area: Crowell 1 

Klamath Mts., peridotite and chromite: Wells, F. G. 

Lorapoc quadrangle: Dibblee 

Los Olivos Quadrangle: Dibblee

Macdoel quadrangle : Williams, H. 

Needles magnesite deposit, San 

Bernardino County: Vitallano

Neenach quadrangle : Wiese 2 

Point Arguello quadrangle : Dibblee

Point Conception quadrangle: Dibblee

Quien Snbc quadrangle : Leith, C. J. 1 

Red Mountain magnesite district :

Bodenlos 

San Dieguito pyrophyllite area:

Jahns2

San Jose Hills: Olmsted 

San Mateo area, Calera limestone:

Walker, G, W, i

San Rafael Mts.: Walker, G. W. 2 

Santa Barbara County : Dibblee
INDEX 319

Geologic maps Continued 

California Continued 

Santa Maria district: Woodrlng 

Skaggs Springs mercury mine, Sonoma

County : Everhart 1 

Toowa Valley: Webb 

Colorado, Boulder area : Harding, R. C. 

Brush Creek mining district, sketch

map : Gabelman 1 

Front Range : Levering 1

Mining districts: Lovering 1 

Fulforcl mining district, sketch map:

Gabelman 1

Oil and gas fields : Dobbin 1 

Park County, bedrock : Singewald

Surface : Singewald 

San Juan Basin: Silver 1 

Wellsville area, Paleozoic : Rold 1 

Connecticut, eastern : Foye

Triassic rocks : Krynine 1 

District of Columbia : Carr

Rock Creek Park, sketch map : Fellows 

Dominican Republic, Maiindn-Hatillo

district: Koschmann 1 

Ellesmere Island : Troelsen 2 

Georgia, Cartersville district; Kesler 2

Piedmont area : Lester 2 

Greenland, East: Koch

Northwest: Troelsen 2 

Gulf of California area: Anderson,

C. A. 2 

Gulf of St. Lawrence, Aguanish-Washicoutai Bay area : Claveau 

Haiti, Gonaives plain: Taylor, G'. C.

Port-au-Prince area: Butterlin 1 

Idaho, Boundary 'County, lead-zinc

properties: Kiilsgaard 1 

Hailey-Bellevue area : Anderson, A. L. 

Livingston mine area, Boulder Creek

district: Kiilsgaard 2 

Mayflower area : Fryklund 

Triumph-Parker mine area: Kiilsgaard 3 

Illinois : Horberg 1

Peoria area : Horberg 2 

Indiana, Boone County, glacial geology :

Brown, E. A. 

Index: Boardman 3 

Jasonville quadrangle : Wier, C. E. 1 

Noble County, glacial geology : Stallman 

Northern, Silurian, sketch map:

Esarey 1 

Western, Mississippian-Pennsylvanian, sketch map : Esarey 2 

Interpretation, down-structure method : Mackin 2 

Jamaica : Hose

Kansas, Barton County : Latta 

Decatur County : Byrne, F. E. 4 

Jewell County : Byrne, F. E. 2 

Republic County : Byrne, F. E. 3 

Rice County : Fent 2 

Stafford County : Latta 

Tonganoxie Valley, Pennsylvanlan: 

Line

Geologic maps Continued 

Kentucky: Stokley

Bourbon County : Hamilton, D. K. 

Fayette County : Hamilton, D. K. 

Jackson Purchase region: Roberts,

J. K. 1

Jessamine County : Hamilton, D. K. 

Scott County : Hamilton, D. K. 

Louisiana, index: Boardman 4

Lower Red River Valley: Schultz,

J. R.

Maine, Moosehead Lake area: Hurley 3

Manitoba, Brochet area : Canada G. S. 4

Cat Lake-Winnipeg River area:

Springer

Crowduck Bay area: Canada G. S. 9 

Devonian: Baillie 

Elbow Lake area: Robertson, D. S. 

Wanipigow River area: Davles, J. F. 

Weldon Bay area: Kalliokoski 

Maryland, Bear Island, Potomac River :

Cloos 2

Castleman coal basin : Waage1 

Harpers Ferry gorge : Cloos 1 t 

Southern, Cretaceous and Tertiary:

Overbeck 

Massachusetts, Brockton quadrangle,

bedrock: Chute 1

Surface: Chute 2 

Mexico, Antimonio district: Guiza;

White, D. B. 1 

Cedros Island : Osorio Tafall 

Cerro Pelon area, sketch map : Benavides G. 2

Chiapas, southern : Mullerrled 1 

Durango tin deposits : Smith, W. C. 

' El Bote mine area, Zacatecas: Mapes

Vasquez

Guerrero, northeast: Guzman 1 

Gulf of California islands : Anderson,

C. A. 2 

Huahuaxtla district, Guerrero : Pe'rez

Siliceo

Lower California: Anderson, C. A. 2 

Lucifer district: Wilson, I. F. 

Macuspana region, Tabasco, sketch

map: Gutigrrez Gil 

Moloacan-Ixhuatlan area, Veracruz,

sketch map: Contreras 

Oaxaca Province: Salas 

Parlcutin region : Williams, H. 

Reynosa area: Asoc. Mex. Geol. Petrol.

Sinaloa : Mina Uhink 

Taxco district: Fowler, G. M. 1 

Tenosique area, Tabasco Province:

Benavides G. 1

Michigan, Felch Mtn. district: Dutton 

Iron River-Crystal Falls district:

Dutton

Menominee district: Dutton 

Mining geology maps, preparation:

Herness 

Mississippi, Carroll County: Vestal,

F. E. 

Index: Boardman 5
Geologic maps Continued

Montana: Billings Geol. Soc.

Button Butte-Forestgrove area : Gardner, L. S. 

Camp Creek corundum deposit: Heinrich, E. W. 2

Corundum deposits: Clabaugh 1 

Dillon region, sillimanite deposits:

Heinrich, B. W. 1 

Fergus County : Robertson, A. F. 

Fluorite deposits: Ross, C. P. 

Hobson area: Vine 

Judith Mts.: Robertson, A. F. 

Livingston formation, sketch map:

Richards, P. W. 

Marysville granodiorite stock, sketch

map : Knopf 2 

North Moccasin Mts.: Robertson,

A. F.

Philipsburg area : Holser ; Lorain 

Southwestern : Klepper 

Three Forks-Whitehall area: Perry,

E. S. 2 

Nebraska, Elkhorn River Valley, glacial

geology : Frankforter 

Nevada, Boulder Canyon area: TJ. S.

Bur. Reclamation

Panaca area, Meadow Valley : Phoenix 

Pioche district: Young 

New Hampshire, Crawford Notch quadrangle, eastern, sketch map : Henderson, D. M. 2 

Lovewell Mtn. quadrangle: Heald,

M. T. 1, 2 

Mt. Pawtuckaway quadrangle : Freedman 1, 2 

New Mexico, Central mining district:

Lasky, g. G. 1

Harding pegmatite area : Montgomery 

Houston-Thomas lead-zinc prospect:

Barnes, V. E. 1

Index : Boardman 6

Northern: Colbert i

Rio Grande watershed, sketch map:

Griswold

San Juan Basin : Silver 1 

Santa Rita copper mine : Kerr, P. F. 2 

New York, Adirondack garnet areas:

Levin 1

Bear Mtn. : Lowe 

Hanover shale, Devonian : Pepper

Montgomery County : .Tefflorcls

Rensselaer County: Cushman

Wiscoy sandstone, Devonian : Pepper 

Newfoundland, Bonavista area : Christie

Fogo Island area: Baird, D. M. 

Little Rattling Brook area : Hriskevitch 

Torbay area: Rose, E. R.

North Carolina. ISroncl River Basin 

Mundorff 1

Catawba River Basin : Mundorff 1 

French Broad River Basin ; Legrana

Hot Springs area: Oriel 

Index: Boardman 7

Geologic maps Continued

North Dakota, Heart River Valley :

Tychsen

Kindred area: Dennis 2 

Standing Rock Indian Reservation :

Denson, N. M.

Wyndmere area : Dennis 1 ' 

Northwest Territories, Aylmer Lake

area: Lord

Christie Bay area: Brown, I. C. 2 

Fort Resolution area: Brown, I. C. 3 

Ghost Lake area : Wright, G. M. 

Giauque Lake area: Quinn, H: A. ;

Tremblay 2

Matthews Lake.area: Folinsbee 1 

Reliance area : Brown, I. C. 1 

Walmsley Lake area : Folinsbee 2 

Yellowknife area : Henderson 1, 2 

Yellowknife greenstone belt:. Henderson 3 

Nova Scotia, Mulgrave area: Canada

G. S. 18 

Ohio, Greene County, bedrock : Norris

Surface : Goldthwait 1 

Oklahoma, Le Flore County : Knechtel 1 

Ouachita Mts.: Okla. City Geol. Soc. 

Progress report: Dott 4 

Ontario: Hurst 1

Beaverton area: Caley

Crow River area, sketch map : Chisholm 5

Echo Township: Armstrong, H. S. 

Fenelon Township, Pleistocene : Lee,

H. A. 

Geraldton-Beardmore area, sketch

map ; Greer 

Gullwing Lake-Sunstrum area : Harding, W. D. 2; Ontario Dept. Mines

2 

Kenogami Lake area : Thomson 1

Kirkland Lake area, sketch map : Sav- 

. age, W. S.

Kirklancl T^ahe-T^arder Lake gold belt :

Thomson 1 

Lake Simcoe area : Deane

Pleistocene glacial deposits : Canada

G. S. 14 

Mississagi road area : Harding, W. D.

3

Olden-Bedford area : Harding, W. D. 1 

Orillia-Brechin area : Caley 

Ossian Township, Timiskaming district : Currie

O'Sullivan Lake area : Moorhouse 2

Osway Township : Moorhouae 1 : Ontario Dept. Mines i 

Perth area: Diigas

Porcupine area, sketch map : Hogg

Red Lake area, sketch map: Cnishoim

4

Southwestern: Evans, C/S,

Teck Township : Thomson 1

Township 29, Range 14: Nuffleld 

Oregon, Umatilla County i Wagner, N. 8.
321

Geologic maps Continued

Panama, Gatun Lake area: Jones, S. M. 

Pennsylvania, Carlisle area, Ordovician : 

Stose '1

Dillsburg iron district: Hotz 1

Evansville area, sketch map : Gray, C.

General: Cleaves 1

Lehigh River area, sketch map : Stose 

2

Northern coal field, Wilkes-Barre area,'

sketch map : Ash

- Safe Harbor quarry : Chapman, R. W. 

Quebec, Beetz Lake area, Saguenay 

County : Grenier 1

Belleterre area, Guillet Township: 

Auger 1

Capsisit-La Treve area, sketch map : 

Gilbert, J. E. 3

Cawatose area : Wahl

Dasserat Township, northwest: Dawson

Denholin-Hincks area, Gatineau County : Mauffette 1

Duverny and Landrieime Townships, 

Abitibi-East County : Weber

Fiedmont area: Canada, G. S. vll; 

Tremblay 1

Gaspe" Peninsula, eastern : McGerrigle

Grondines area: Clark, T. H..; Lunde

Gulf of St. Lawrence, MinganAguanish area : Longley

Bgbe'court Towtaship, Abitibi-West: 

Graham, R. B. 1

Lac La Tr&ve area, East County: Gilbert, J. E. 1, 3

Lesueur Township, southwest: Graham, R. B. 2, 3

Maicasagi area, Abitibi-East County : 

* Imbault 1

Mattagami-Inconnu region, ' sketch 

map : Imbault 2

Mazarin area, Abitibi-East County: 

Tiphane

Mineral deposits: Dresser

Montauban-les-mines area, Portneuf 

County : Smith, J, R.

Razilly map-area : Maurice

Sagard-Cailleres area : Ross, S. H.

Senneterre area : Canada G. S. 22

Southeast Dasserat area, Temiscamingue County : Stockwell 2

Southwest Dasserat area, Temiscamingue County : Stockwell 1

Taibi Lake area: Belaud 1

Ttoiiscamie Mts. area, Mistassini territory : Neilson

Villebon area : Canada G. S. 24

Waswanipi Lake area, Abitibi-East

County : Blake, D. A. W. 

Rhode Island, Bristol County, glacial

geology : Alien, W. B. 

Woonsocket area, bedrock: Quinn, 

A. W. 2

Surface : Quinn, A. W. 2

Geologic maps Continued

Saskatchewan, Goldflelds area: .Tames,

W. F.

Ile-a-la-Crosse area: Frarey 

Pine Channel area, Lake Athabaska

district: Mawdsley 

South Carolina, index : Boardman 8

Shale distribution : Buie 

South Dakota, Cheyenne River Indian

Reservation : Denson, N. M. 

Standing Rock Indian Reservation:

Denson, N. M. , Tennessee, Ducktown copper district:

Simmons, W. W.

Texas, Brazos County : Mathews, A. A. L. 

Coal Creek serpentine area : Barnes,

V. E. 2

Houston area : Lang, J. W. 

Llano region, Carboniferous : Abilene

Geol. Soc. 3 ; Plummer, F. B. 

Rio Grande watershed, sketch map :

Griswold

Serpentine deposits: Barnes, V. E. 2 

Sierra Blanca region: West Texas

Geol. Soc. 

Troup district,, clay deposits : Stenzel

1

United States, bibliography: Jillson 4 

Utah, Beryl-Enterprise district, Escalante Valley : Fix 

Central: Spieker

Iron County, eastern : Gregory, H. B. 

Three Creeks reservoir site : Griswold 

Uinta Mts., north flank, sketch map :

Curtis 

Vermont, Bradford-Thetford area : Hadley, J. B.

Castleton area : Fowler, P. 

East-central: White, W. S. 

Northwestern: Booth 

Virgin Islands, St. Croix; Cederstrom 2 

Virginia, Jonesville district: Miller, R. L.

1

Love area, sketch map: Bloomer 2 

Oronoco area, sketch map : Bloomer 2 

Riverton area, sketch map : Shainin 

Valley and Ridge province: Edmundson 

Washington, Blewett iron-nickel deposit:

Lamey

Skagit County : Sceva 

West Indies, Carriacou Island : Lehner,

E. 

West Virginia, Alvon area, Paleozoic:

Maxwell

Cambrian, sketch map : Woodward 1 

Wyoming, Albany County : Love 1 . 

Beaver Divide area, Tertiary: Van

Houten

Bridger Basin : Donovan 

Cumberland Reservoir-Little Muddy

Creek area : Walker, C. L. 

Lander area: Thompson, Raymond

M. 

Lnramie Basin : Littleton 3
322 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Geologic maps Continued 

Wyoming Continued 

Rock Springs uplift: Hale, L. A. 

Southwestern : Love 2 

Wheatland Flats area: Littleton 1 

Wind River Mts., southwest flank,

Paleozoic: Love 3 

Yukon, Dezadeash area : Kindle 

Galena Hill: McTaggart 

Keno Hill: McTaggart

Sketch map: Smitheringale 

Geologic reports.

Oil field reports, preparation : Johnson,

G. W. 

Geologic thermometry.

Liquid inclusions, validity of use: Kennedy 2 

Quartz, inversion variation, geological

significance: Keith 

Geologic time.

Colorado, euxenite, age: Muench 1

Pitchblende, age: Muench 1 

Estimates, accuracy : Elias 6 

General: Maldonado-Koerdell 5 

Granitic layer, age : Verhoogen 

Manitoba, monazite, age: Muench 1 

Massachusetts, Greenwich, age of allanite: Marble 2 

Measurement: Ahrens, L. H. 4 ; Hurley

4, 5 ; Knopf 1; Marble 3 

'Age of igneous rocks by accessory

minerals : Larsen, E. S. 2 

Basin of Mexico : De Terra 

Bibliography: Marble 5 

Carbonate ro'cks : Kulp 4 

Deep-sea sediments : Kulp 3 

Helium method : Hurley 1 

Manitoba lepidolite: Ahrens, L. H. 2

Metamict mineral method : Holland 1 

Pleistocene glacial drift, radiocarbon

assay: Flint 2 

Radiocarbon determinations: Flint 4

Saskatchewan pitchblende -. Ella-worth

Strontium method : Ahrens, L. H. 6 

Pleistocene period, duration : Lugn 

Pre-Cambrian chronology and structural

trends : Hurley 2

Radioactivity determinations: Muench

2 

Use of soil profiles in estimating : Thorp

2 

Geologist.

Designation : Suter, H. H. 

Engineering work, functions: Burwell,

E. B. 1

Oil field, duties: Johnson, G. W. 

Supply and demand, 1949-1950: Am.

Geol. Inst. 1

Geology, status of the profession : Delo 1 

Geomorphology.

Blue Ridge Front, fault scarp : White,

W. A.

Colorado, Colorado Springs region, piedmont surfaces: Tator 2 

Development of the science, W. M. Davis

and: Baulig 

Flat-lands, photogeology : Melton 2

Geomorphology Continued

Geomorphic features, need for quantitative analysis: Meyerhoff 2

Indiana, Wabash area: Thornbury 2

Morphogenetic regions: Peltier .

Pediment formation, Arizona: Miller, 

V. C. 2

Pediments and pediplains: Maxson 3

Periglacial cycle : Peltier

Physical, research : Sharp 3

Relation to geology and geography: 

Bryan 2

Relation to glacial geology : Horberg 4

Research, 1931-49 : Carlston 2

Sequoia National Park, California: 

Matthes 3

Shore processes, interpretation, photography for: Shepard 5

Slope development, concepts : Strahler 1

Status: Putnam

Symposium : Bryan 1

Training of geomorphologists: Bryan 2

Wyoming, southwest: Knight

Yosemite Valley, California : Matthes 2 

Geophysical investigations.

'Airborne electrical prospecting: Lundberg 1

Alaska, 1949 : Miller, R. L. 2 

Taku Glacier: Poulter 1, 3

Alberta: Barthelmes

Seismic prospecting: Tellington

Analysis of combined gravity and magnetic anomalies : Garland 2

Appalachian anticlines : Straley 2

Atlantic Basin, refraction measurements : Ewing 2

Atlantic Coast, seismic refraction measurements : Ewing 3

British Columbia, mining geophysics:

Smith, A. 

California, ocean floor, seismic studies:

Raitt

Canada, northwestern, gravity anomalies : Innes

Western : Barthelmes

Petroleum exploration : Beck, A. F. 

Canadian Shield: Wilson, J. T. 2

Gravity anomalies : Garland 1

Colorado, San Juan Basin : Dobyns 

District of Columbia, layering of crustal

structure: Tuve 1

Electric logging, development: Doll 

Electrical resistivity, relation to oil production : Milne, W. P. : Spradlin 

Exploration, airborne magnetometer:

Anonymous 7

Poulter seismic method: Poulter 2, 3 

Gammatron surveys : Lang, B 

Geologic interpretation, problems : Coffin

Gravity data from boreholes: Smith, 

N. J.

Gravity prospecting, development: Hammer 2

Gulf Coastal Plain, sedimentary volumes : Goldstone
INDEX 323

Geophysical Investigations Continued

Highway construction, geophysical

methods : Moore, R. W. 

Indiana, Adams County, aeromagnetic

map : U. S. G. S. 3 

Alien County, ueroraagnetlc map:

U. S. G. S. 4 

Boone County, aeromagnetlc map:

U. S. G. S. 5 

Carroll County, aeromagnetic map:

U. S. G. S. 6 

Cass' County, aeromagnetic map:

U. S. G. S. 7 

Clinton County, aeromagnetlc map:

D. S. G. S. 8 

Daviess County, aeromagnetic map:

U. S. G. S. 9 

De Kalb County, aeromagnetlc map:

U. S. G. S. 10 

Dubois County, aeromagnetic map:

XL S. G. S. 11 

Blkhart County, aeromagnetic map :

U. S. G. S. 12 

Glbson County, aeromagnetic map:

U. S. G. S.,13 

Hendricks County, aeromagnetic

map : U. S. G. S. 14 

Howard County, aeromagnetic map :

U. S. G. S. 15 

Huntlngton County, aeromagnetlc

map : U. S. G. S. 16 

Kosciusko County, aeromagnetic map :

U. S. G. S. 17 

Lagrange County, aeromagnetic map :

U. S; G. S. 18 

Marshall County, aeromagnetic map:

U. S. G. S. 19 

Martin County, aeromagnetic map:

U. S. G. S. 20 

Miami County, aeromagnetic map:

U. S. G. S. 21 

Montgomery County, aeromagnetlc

map: U. S. G. S. 22 

Noble County, aeromagnetlc map:

U. S. G. S. 23 

Perry County, aeromagnetic map:

U. S. G. S. 24 

Pike County, aeromagnetlc map:

U. S. G. S. 25 

Porter County, aeromagnetic map:

U. S. G. S. 26 

Putnam County, aeromagnetic map :

U. S. G. S. 27 

St. Joseph County, aeromagnetic

map : U. S. G. S. 28 

Spencer County, aeromagnetic map:

U. S. G. S. 29 

Steuben County, aeromagnetic map :

U. S. G. S. 30 

Tippecanoe County, aeromagnetic

map : U. S. G. S. 31 

Vanderburgh County, aeromagnetlc

map: U. S. G. S. 32 

Vermillion County, aeromagnetic

map : U. S. G. S. 33 

Wabash County, aeromagnetic map :

U. S. G. S. 34

| Geophysical Investigations Continued 

Indiana Continued 

Warren County, aeromagnetic map:

U. S. G. S. 35 

Warrick County, aeromagnetlc map:

U. S. G. S. 36 

Wells County, aeromagnetlc map:

U. S. G. S. 37 

Whltley County, aeromagnetlc map:

U. S. G. S. 38

Louisiana, Benton field : Von Croy 

Radioactivity logs, Interpretation:

Bush

Magnetic anomalies, quantitative interpretation : Cook, K. L. 2 

Magnetic surveys, Interpretation:

Garpner

Maine, Moosehead Lake area : Hurley 3 

Mexico, Campeche: Cornejo Toledo 

Gravimetric exploration: Garcla

Rojas 1

Gravity anomalies: De la O. Carrefio 

Northeast, radioactive logging: Cervera del Castillo 

Salina Basin, Tehuantepec Isthmus:

Basurto Garcla

Seismologic exploration: Rummerfleld 

 Tabasco : Cornejo Toledo 

Veracruz basin : Espinosa 

Yucatan : Cornejo Toledo 

Michigan, Iron River district, magnetic :

Wier, K. L.

Missouri, Bonne Terre quadrangle, aeromagnetic map : U. S. G. S. 39 

Intrusive near Avon, magnetic study :

Holmes, C. R. 

Potosi quadrangle, aeromagnetic

map : U. S. G. S. 40 

New Brunswick, Pointe Verte area, 

aeromagnetic map : Canada G. S. 21 

New Mexico, De Baca County, aeromagnetic map : U. S. G. S. 41 

Guadalupe County, aeromagnetic

map: U. S. G. S. 41, 42 

Houston-Thomas lead-zinc prospect:

Barnes, V. B. 1 

San Juan Basin : Dobyns 

San Miguel County, aeromagnetic

map: U. S. G. S. 42 

North Carolina, Coastal Plain : Skeels 

Oblique reflections, analysis: Hazebroek

Oklahoma, Fort Cobb anticline: Campbell, F. F. 2 

Seminole area, radioactivity logging:

McGaha 2

Southeast Newcastle field : Spradlln 

West Edmond field : Milne, W. P. 

Ontario, Arnprior sheet, aeromagnetic

map: Canada G. S. 1 

Bancroft area, aeromagnetic map:

Canada G. S. 2 

Bannockburn area, aeromagnetlc

map : Canada G. S. 3 

Campbellford area, aeromagnetic 

map : Canada G. S. 5
324 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Geophysical Investigations Continued 

Ontario Continued

Carleton Place area, aeromagnetic

. map : Canada G. S. 6

Clare River syncline area, gravimeter 

survey : Pitzpatrick

Coe Hill area, aeromagnetic map: 

Canada G. S. 8

Kemptville area, aeromagnetic map : 

Canada G. S. 12

Merrickville area, aeromagnetic map : 

Canada G. S. 17

Ottawa area, aeromagnetic map : Canada G. S. 19

Perth area, aeromagnetic map: Canada G. S. 20

Southwestern, Poulter method : Hodgson, J. H. 1 

Ore exploration: Evans, J. H.

Prospecting: Hammer 2 

Petroleum exploration : Hysom 

Quebec, Arnprior sheet, aeromagnetic 

map : Canada G. S. 1

Ottawa area, aeromagnetic map : Canada G. S. 19

Clericy area, aeromagnetic map: 

Canada G. S. 7

Desboues area, aeromagnetic map: 

Canada G. S. 10

Kinojevis area, aeromagnetic map: 

Canada G. S. 13

Macamic area, aeromagnetic map: 

Canada G. S. 16

Southeast Dubuisson area, magnetic 

map : Shaw, G. 1

Southeast Vassan area, magnetic 

map : Shaw, G. 2

Taschereau area, aeromagnetic map :

Canada G. S. 23

Radio wave prospecting : Mann, R. 

Radio wave transmission, geologic

aspects: Pullen

Radioactivity well logging, popular account : Anonymous 8

Reefs, gravity anomalies: Pohly

Seismic evidence : Agnich ; Alcock,

E. D.

Residual gravity, evaluation, geologic

factors : Gabriel

Rock densities, underground, gravimeter

measurements: Hammer 1

Saskatchewan, scintlllometer survey :

Brownell 1, 2 

Sedimentary rocks, gamma ray-neutron

curve values : McGaha 1

Seismic velocities, field and laboratory measurements: Oliphant

Sediments, -wave velocity : West

Seismic exploration, geologic responsibility : Beebe

HlstoricaLreview: Green, C. H. 

Seismic methods, development: Clewell 2 

Seismic prospecting: Elcker, N. 

Seismic refraction profiles, Interpretation : Slotnick

Geophysical investigations Continued

Seismic surface waves, dispersion:

Dobrin

Seismic wave propagation : Clewell 1 

Seismograph system, offshore : Paslay 

Self-potential data, interpretation:

Yiingul

Statistical review, 1949 : Eckhardt 

Stratigraphic convergence: Wheeler,

R. R, 2 

South Dakota, magnetic anomalies:

Carlson

Magnetic surveys: Petsch 

Texas, Delaware Basin : Hoylman ; McFadden

Fault interpretation from seismic reflections : Quarles

North Snyder oil field : Clay ton 1, 2 

Radioactivity logs, interpretation:

Bush

United States, gravity map : Lyons 

Utah, Iron Springs district, magnetic

surveys: Cook, K. L. 1 

Velocity surveys in wells: Daly, J. W. 

Washington, Ross Dam, vibration

studies : Coombs 1

Wisconsin, Ripon-Fond du Lac area, 

electrical resistivity survey : Spicer 

Geophysics.

Education in : Macelwane 

Exploration, methods: Nettleton

Textbook: Jakosky 

General: Fisher, J. E. 3 ; Gassmann 

Geophysical abstracts: Rabbitt, M. C. 

History: Kelly, S. F. 2 

Mineral exploration, seismic : Leet 1 

Mining : Koulomzine

Airborne exploration, evaluation : 

Lundberg 2

Ore exploration: Geoffroy

Radioactivity logs, interpretation :

Bush 

Review, 1949: Kelly, S. F. 1

Scope : Beers

Seismic prospecting: Gilmour

University of Toronto, research: Marble

4

Georgia.

Earth science teaching, colleges: Prunty

Geiger counter surveys: Lester 2

Tennessee Valley engineering projects, 

geology : Tenn. Valley Authority

Economic geology.

Cartersville district: Kesler 2 

Clays, ceramic: Mitchell, L. 1

Industrial minerals : Peyton

Mineral resources: Furcron 1

Snilmanlte : Teague

Geologic maps. 

Cartersville district: Kesler 2

Piedmont area : Lester 2 

Historical geology. 

CartergyJlle district; Kesler 2

Cenozoic sediments, volume : Toulmin 

Mesozoic: Applin, P. L.
INDEX 325

Georgia Continued 

Mineralogy.

Clays, ceramic: Mltchell, L. 1

Thermal analysis: Mitchell, L. 2 

Garnet: Ingram, W. P. 

Kyanite: Ingram, W. F. 

Staurolite: Ingram, W. F. 

Smlthonia meteorite : Roy, S. K. 1 

Paleontology.

Brachiopod Identification, statistical

method : Arden 

Foraminifera : McLean 1 

Petrology.

Augen gneiss, Thomaston: Ingram,

W. F.

Cartersville district: Kesler 2 

Diabase dikes, Piedmont area: Lester 2 

.Itacolumite : Grant 

Physiographic geology.

Blue Ridge Front, fault scarp : White,

W. A.

Shore lines, Pleistocene : MacNeil 

Terraces, Pleistocene: MacNeil 

Geosyncllnes.

General: Field, R. M. 

Geometrical ratios of depth and width, 

application to processes of formation : Harrington 

Gulf Coast, United States: Murray,

G. B. 2

Island arc structure : Tanner 1 

Origin : Kaufmann, G. F. 

Relation to mineral deposits: Cady,

W. M. 3

Relation to orogeny: Bucher 2 

Geothermal gradients.

Colorado, Front Range, heat flow:

Birch 1 

Ontario : Misener

Kirkland Lake area: Thomson 2 

Kirkland Lake, heat flow: Leith,

T. H.

Quebec: Misener

Research, recent, review : Van Orstrand 

Texas, Abilene aera : Jenke 

Glacial geology. See also Glacial lakes;

Glaciation ; Glaciers; Quaternary. 

Arctic America, Pleistocene : Richards,

H. G. 1, 2

Baffin Island : Goldthwait 2 

California, Mono Lake, Pleistocene:

Putnam

Colorado, Park County : Singewald 

Connecticut, eastern : Foye

Willimantic Valley : Vander Pyl 

Denver Mtn. area : Tweto 

Drift, v age differentiation, graphic

method : Rune 2 . 

Gulf of Maine: Chadwick 

Illinois, bedrock topography : Horberg 1

Peoria area : Horberg 2 

Indiana, Boone County : Brown, E. A. 

Noble County : Stallman 

Southern : Thornbury i 

Wabash area: Thornbury 2 

Wabash Basin, glacial drift: McGrain

Glacial geology Continued

Iowa, Wisconsin drift, re lassiflcation :

Ruhe 3

Kansas, northeastern : Frye 2 

Maine, marine limit: Lougee 

Massachusetts, Brockton quadr ingle :

Chute 2

Minnesota, northeastern, origin of bedrock lakes: Zumberge 

Wisconsin drift, reclae iflcation: 

 « Ruhe 3 

Mississippi River, Pleistocene course:

Hobbs

Nebraska, Elkhorn River Valley. Pleistocene : Frankfurter 

New Hampshire, map : N. H. S .ite Plan.

Dev. Comm. 

Newfoundland, Fogo Island area : Baird,

D. M.

North Dakota, Zeeland area : Laird 

Nova Scotia, Yarmouth-Pubnico area:

Cameron, H. L. 2 

Ohio, Cleveland area: -Bagley

Greene County : Goldthwait 1 ; Norris 

Northeastern, Wisconsin drift: White,

G. W. 2

West-central, deglaciation: Goldthwait 3 

Ontario, Fenelon Township, Pleistocene :

Lee, H. A.

Lake Simcoe area: Deane 

Pleistocene drift, dating by radiocarbon :

Flint 2 

Quebec, Lotbiniere region, Pleistocene

ridges: Osborne 3 

Mont Carmel: Osborne 1 

Relation to geomorphology : Horberg 4 

Rhode Island, Bristol County: Alien,

W. B. 

South Dakota, LeBeau quadrangle:

Mickelson

Pleistocene strata : Flint 3 

Utah, Iron County, eastern: Gregory,

H. B.

Little Cottonwood Canyon: Ives 2 

Washington, Skykomish Valley : Gary 2 

Wenatchee area : Long 

White River Valley : Anderson, N. R. 

Wisconsin, Baraboo area: Bretz 1 

Wisconsin chronology, soil horizons:

Richmond

Wyoming, Green River Basin : Blackwelder 1 

Glacial lakes.

Indiana,.southern : Thornbury 1 

Lake Algonquin, Ontario : Deane 

Lake Dakota, South Dakota: Rothrock,

E. P.

Lake Merrimac, Wisconsin : Bretz 1 

Lake Russell, California: Putnam 

Lake Wisconsin, Wisconsin: Bretz 1 

Glaciation.

Canada: Field, D. S. M. 2 

Cycles, origin : Fisher, J. E. 3 

Glaciated valleys, profile, relation to ice

melting point: Fisher, J. B. 2 

Newfoundland, Bonavista area : Christie
326 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Glaciation Continued

North America, Quaternary : Antevs 1 

Utah, Little Cottonwood Canyon : Ives 2 

Glaciers.

Alaska, aerial survey : Miller, M. M. 2 

Juneau Ice Field, glacier fluctuation:

Lawrence 

Malaspina Glacier, air bubbles in

glacial ice : Bader 

Taku Glacier, seismic measurements :

Poulter, 1, 3 c? ' 

Variation : Mattnes 1

1935-1947 : Field, W. 0. 

Baffin Island, Barnes Ice cap: Ward,

W. H.

British Columbia, recession : Munday 

California, Mt. Pickering : Kehrlein 

Dirt bands : Fisher, J. B. 1 

Forbes bands: Fisher, J. B. 1 

Sierra Nevada, recession: Harrison,

A. B.

United States, variation : Matthes 1 

Washington, Mt. Rainier, ice cavern:

Potts 

Wyoming, Teton Mts., aerial survey:

Miller, M. M. 1

Yukon, Seward ice field : Sharp 1, 2 

Glass, Greenland, Kap Daussy dikes : Vincent 

Gneiss.

Georgia, Thomaston, augen gneiss: Ingram, W. F.

New York, southeastern, Delaware aqueduct system : Fluhr 1 

Gold.

British Columbia, in vegetation : Warren, H. V. 1

Zeballos area: Stevenson 1 

Colorado, Park County : Singewald

San Juan area : King, W. H. 

Idaho, Hailey-Bellevue area: Anderson,

A. L.

Triumph-Parker mine area: Kiilsgaard 3

Manitoba, San Antonio mine, copper

coating: Ferguson, R. B.

Waniplgow River area. : Da-pies. J. P.

Montana, Helena, placer : Boulter

Highland Mts.: Sahinen

Park County : Reed, G. C. 

Nevada, Lyon County : stoaaara

Storey County : Stoddard

knife mine: Byrne, N. w. 

Giauque Lake area: Quinn, H. A.;

Tremblay 2

Ontario, Crow River area: Cbisholm 5

Echo Township : Armstrong, H. S. 

Geraldton-Beardmore area : Greer

Kenogami Lake area: Thomson 1

Kirkland Lake area : Savage, W. S. ;

Thomson 2

Kirkland Lake mine : Perry, O. S.

Kirkland Lake ores : Hawley 1

Lake Shore mine, Kirkland Lake area :

Charlewood 

Macassa mine, Kirkland Lake area:

Ward, W.

Gold Continued

Ontario Continued

Osway Township : Moorhouse 1 

Porcupine area : Hogg 

Red Lake area: Chisholm 4 

Skead Township : Hewitt, D. F. 1 

Sylvanite mine, Kirkland Lake area:

Macintosh 

Teck-Hughes mine, Kirkland Lake

area: Griffin, K. 

Teck Township : Thomson 1 

Toburn mine, Kirkland Lake area:

Ogryzlo 

Wright-Hargreaves mine, Kirkland

Lake area : Hopkins, H. 

Prospecting guide: Gardner, B. D. 

Quebec: Dresser

Dasserat Township, northwest:

Dawson 

Lesueur Township, southwest:

Graham, R. B. 2, 3

Relation of deposits to intrusives : Gross 

South Dakota, Homestake mine: McLaughlin, D. H. 2 ; Noble 1 

Yukon : Bostock

Granite. See also Construction materials. 

California, San Diego County: Hoppin 

Colorado, origin : Koschmann 3 

Identification by acid treatment: McKinley 

Massachusetts, Cape Ann, fayalite

xenoliths : Palache 1 

New England, composition variation:

Chayes 4 

Origin: Chayes 2

New York, Bear Mtn., Storm King granite : Lowe 

Oklahoma, Wichita Mts., pre-Cambrian,

identification : McKinley 

Origin: Chayes 2; Koschmann 3;

Turner 4

Radioactivity, distribution : Hurley 1 

Rhode Island, point-counter analyses:

Chayes 4

Vermont, Barre, muscovite replacement;

Chayes 1 

Granitizatlon.

North Carolina, Bryson City area: 

Cameron, E. N. 2

Wuahington, Oknnogan Range : GoldSmith, R.

Swauk arkose : Coombs 2 

Graphite, structure : Lukesh

Graptoloidea. '

Cyclograptus Spencer : Bulman 2

Michigan, Utica shale, Ordoviclan;

Decker. O. E. 1 

Quebec : Bulman l

Yukon, Pelly Mts., Ordovician: Decker,

C. E. 2

Gravel. See also Construction materials.

Aggregate for concrete, tests : Rexford

Arizona, Sycamore Canyon, Cenozoic;

Price, W. E. 1

Illinois, Henry County, Tertiary : Horberg 3
INDEX 327

Gravel Continued

Indiana, northwest, distribution : Bleber 

New York, Finger Lakes, beach gravel:

Taber 2 ' 

Openwork, origin : Cary J 

Greenland.

Pearyland : Troelsen 3 

Economic geology. ^ 

Iron: B0gvad 

Nepheline syenite : B0gvad 

Geologic maps.

East Greenland: Koch 

Northwest: Troelsen 2 

Historical geology.

Disko Bugt, marine Quaternary : Harder 

Bast Greenland, Cretaceous : Maync 1 

Kap Oswald area, pre-Cambrian-Cambrian : Schaub

Kejser Franz Josephs Fjord area,

metamorphic complex, age: Huber

Northeast Greenland, late Paleozoic:

Frebold

Northwest: Troelsen 2 

Peary Land, stratigraphy and structure :

Troelsen 1

West, Quaternary : Laursen 

Mineralogy.

Radioactive minerals, localities: De

Ment 4 

Paleontology.

Brachiopoda, Northeast Greenland, late

Paleozoic: Frebold

Crossopterygians, Canning Land, Devonian : Jarvik 2 

Cape Franklin area, Middle Devonian :

Jarvik 3

Bast Greenland, Cretaceous : Maync 1 

Fishes, East Greenland, Triassic:

Nielsen 

Ichthyostegids, Upper Devonian : Jarvik

1 

Mollusca, Disko Bugt, Quaternary:

Harder

West, Quaternary, shell lists : Laursen 

Petrology.

Igneous Tertiary, correlation with Scotland : Tyrrell

Kap Daussy, tholeiite dike, glass : Vincent

Kejser Franz Josephs Fjord area, 

metamorphic complex, age : Huber 

Physical geology.

Sedimentation, Kap Oswald area, preCambrian-Cambrian : Schaub 

Physiographic geology.

Continental shelf, marginal fault:

Holtedahl

Ground water. For areal, see names of 

states and countries. See also 

Springs ; Thermal waters. 

Alabama, fluoride content: LaMoreaux 3 

Huntsville area : LaMoreaux 2 

Tennessee Valley area : LaMoreaux 1 

Arizona, Gila River Basin: Hem 1 

Arkansas, Ashley County : Hewitt, F. A. 

Jefferson County: Klein

Ground water Continued

Atlantic Coastal Plain, bicarbonate

content: Foster, M. D. 1 

California: Poland ' 

Canada : Alcock, F. J. 1 

Caves, origin : Nunez Jimenez 

Classification: Lee, C. H. 

Colorado, Julesburg area : McLaughlin,

T. G. 

Morgan County, Brush area : Brown,

R. F.

Definitions: Lee, C. H. 

Engineering projects, relation : Meinzer

2 

Exploration, electric logging: Jones,

P. H. 

Florida: Cooper, H. H., Jr.; Jordan,

R. H.

Southern : Parker, G. G. 

Flow, methods of tracing : Kent 

General: Meinzer 1 ; Sayre 3 

Geochemistry: Hem 2 

Gulf Coast, bicarbonate content: Foster,

M.D.I 

Haiti: Brown, J. S. 1

Gonalves Plain : Taylor, G. C. 

Illinois: Horberg 1

Champaign County : Smith, H. F. 1 

Chicago area: Buswell 

Peoria area: Horberg, 2 

Rockf ord area: Smith, H. F. 2 

Indiana : Klaer

Bbone County : Brown, E. A. 

Mitchell Plain, karst hydrology:

Wayne 2

Noble County: Stallman 

Investigations, geology in : Sayre 2 

Jamaica: Hose 

Kansas, Barton County : Latta

Northeastern, glacial deposits: Frye

2

Rice County: Fent 2 

Stafford County : Latta 

Kentucky, Bluegrass region : Hamilton,

D. K.

Bourbon County: Hamilton, D. K. 

Fayette County : Hamilton, D. K. 

Jessamine County : Hamilton, D. K. 

Scott County : Hamilton, D. K. 

Nevada : Robinson, T. W. 

Fish Lake Valley: Eakin 1 

Las Vegas area : Maxey 

Meadow Valley Wash area : Phoenix 

Steamboat Springs, thermal: White,

D. E. 2

Whisky Flat area : Eakin 2 

New Mexico, Rio Grande watershed:

Griswqld

New York, Long Island : Suter, R. 

Montgomery County : Jeffords 

Rensselaer County : Cushman 

North Carolina, Broad River Basin :

Mundorff 1

Catawba River Basin : Mundorff 1 

Flood-plain deposits : Mundorff 2 

French Broad River: Legrand
328 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Ground water Continued

North Dakota, Heart River Valley :

Tychsen

Kindred area : Dennis 2 

Portland area : Dennis 3 

Wyndmere area" : Dennis 1 

Zeeland area : Laird 

Ohio, 1948 : Kaser

Greene County :. Norris

Glacial deposits : Goldthwait 1 

Oklahoma, Cherokee area : Schoff 1 

Pond Creek Basin : Davis, L. V. 1 

Oregon, McNary Dam site, artesian horizon : Thompson, 1. F. 

Morrow County : Wagner, N. S. 

Umatilla County : Wagner, N. S. 

Pennsylvania : Graham, J. B. 1 

Great Valley : Foose 

Philadelphia area : Graham, J. B. 2 

Pittsburgh area : Van Tuyl, D. W. 

Prospecting, geologic methods : Leggette

Geophysical methods : Bays 

Relation to sediments : Foley 

Rhode Island, Bristol County : Alien,

W. B.

Woonsocket area : Quinn, A. W. 2 

Sand aquifers, rate of depletion estimates : Kellogg 

South Dakota : Gries 

Fort Randall Dam area : Johnston,

F. T.

Studies, use in geologic mapping : Foose 

Tennessee, tracing flow, cavernous terrain : Kent

Western : Schneider, R. 

Texas, Atascosa County : Sundstrom 

Gregg County : Broadhurst 

Houston area : Lang, J. W. 

Liberty County : Alexander 

Relation to oil wells : George, W. O. 

Rio Grande watershed : Grlswold

United States :.Meinzer 1

Investigations : Say re 1 

Southeastern : Stringfield

Relation to mining : DeBuchananne

Utah, Escalante Valley : Fix 

Three Creeks dam site : Griswoia

Virgin Islands, St. Croix : Cederstrom 2

Virginia, Coastal IMain : Ceaerstrom 1

Washington, Skagit County : Sceva

Water wells, geological factors : Schoff 2

West Indies, Carrlacou Island : Lehner, E.

Wyoming:. Gillette area : Littleton 2 

Laramle Basin : Littleton 3

Wheatland Flats area ; Littleton 1

Guatemala, volcanoes : Dozy

Guidebooks.

Colorado, San Juan Basin : N. Mex.

Geol. Soc. 

; Rolshausen

Indiana, Mississippian-Pennsylvanian

unconformity : Esarey 2 

Silurian : Esarey 1

Guidebooks Continued

Maryland, Bear Island, Potomac River:

Cloos 2

Brandywine area: Hack 

South Mountain anticlinorium : Cloos

1

Southern : Overbeck 

Mississippi, Cretaceous : Miss. Geol. Soc. 

Montana, Billings Geological Society

field trip: Billings Geol. Soc. 

New Mexico, San Juan Basin : N. Mex.

Geol. Soc. 

Soc. Vertebrate Paleontology, field

conference: Colbert 1 

Oklahoma, Ouachita Mts.: Okla. City

Geol. Soc. 

Tulsa Geological Society field trip:

Tulsa Geol. Soc.

Utah, Uinta Basin, Intermountain Association of Petroleum Geologists: 

Eardley 1 

Wyoming, southwest: Wyo. Geol. 'Assoc.

1 

Gulf Coast.

Continental shelf, oil possibilities : Carsey

Eocene nomenclature: Murray,'G. B 1 

Foraminiferal guide zones, Upper Tertiary : McLean 3

Geosynclinal strata: Murray, G. E. 2 

Jacksonian strata : Murray, G. E. 3 

Sedimentary thicknesses, geophysical

evidence: Goldstone 

Sediments, Cenozoic, volume: Murray,

G. B. 4

Mesozoic, volume: Murray, G. B. 4 

Texas, Cenozoic: Colle

Mesozoic: Colle 

Waters, bicarbonate content: Foster,

M. D. 1 

Gulf of Mexico.

Bibliography : Geyer

Continental shelf: Weaver 1

Poraminifera distribution : Phleger 1 

Petroleum : McGee

Pleistocene paleoecology: Deevey 

Sedimentation: Phleger 1

Haiti. ISec o-Zso Went Indies,.

Geologic maps.

Gonaives plain : Taylor, O. C. 

Port-au-Prince area : Butterlln. i

Ground water,

General : Brown, J. S. 1

Gonaives Plain : Taylor, G. C. 

Historical geology.

I'ort-a.u-Ir'rJLlice area. : IButtei-Hn X

Paleontology. 

Port-au-Prince area: Butterlin 1

Physiographic geology.

Artibonite River, capture: Butterlin 2

Hawaii.

Tsunami, April 1, 1946 : Shepard 1

Physical geology.

Kilauea Caldera, subsidence, December 

1950: Finch 4
INDEX 329

Hawaii Continued

Physical geology Continued

Kilauea volcano, thermal water : Finch 1 

Volcanic tremor: Omer

Mauna Loa eruption, 1949: Pinch 3;

Macdonald, G. A. 1 

June 1950: Finch 2, 5 ; Macdonald, 

G. A. 3

Puehu cinder cone, origin : Macdonald, 

G. A. 2

Volcanism: Ferret 

Heat.

Canadian Shield, heat flow : Lelth, T. H.

Earth : Benfleld 2 

Heavy minerals.

Beach sand deposits, southeastern United 

States : Cannon, H. B.

Colorado, Front Range, Cretaceous sandstones : Goldsteln

New York, Staten Island, sand: Billson, L. A.

Oklahoma, Des Moines series, Pennsylvanian : Scruton

Separation, technique: Wagner, W. R. 

Historical geology. For areal, see names of 

states and countries. See also the 

different systems; Correlations; 

Geologic formations, etc.

Correlation by Foraminifera: Bursch

Cyclic sedimentation, Paleozoic : Moore, 

R. C. 1; Wanless 1 

Appalachians: Wlllard 2

Detroit River group, Devonian, revision : 

Ehlers 1

Grand Canyon of the Colorado: Torre 

Mandrazo

Land bridges, faunal migration: Plnson

Pennsylvanian, Missouri, classification : 

Greene

Reefs in the geologic column: Twenhofel 2

Relation of stratigraphy to paleontologic 

taxonomy : Bell, W. C. 1

Rocky Mtn. region, Paleozoic, Mesozolc: Heaton

Stratigraphic convergence: Wheeler, 

R. R. 2

Stratigraphic nomenclature: Wheeler, 

H. E. 1

Stratigraphic units: Moore, R. C. 4

West Virginia, Cambrian: Woodward 1 

History. See also Surveys.

Biogeochemical investigations in British Columbia : Warren, H. V. 2

Canadian uranium discoveries: James, 

W. F.

Colorado, early geologic work: Butler, 

B. S. 1

First American oil well, Cumberland 

County, Kentucky : Jillson 3

Gems, Roman : Ball

Geologic map, United States: Jillson 4

Geologic mapping, Pennsylvania: Willard 3

Geology in Arabic literature: Said

History Continued

Geophysics : Kelly, S. F. 2 

Seismic exploration: Green, C. H. 

Hydrology. See Ground water. 

Hydrothermal alteration.

New Mexico, Santa Rita area: Kerr,

P. F. 2

Ore deposits: Schwartz 

Idaho.

Bibliography, mineral resources: Anonymous 4 

Economic geology.

Beryl pegmatites : Stoll

Gold, Hailey-Bellevue area: Anderson,

A. L. 

Triumph-Parker mine area: Kiilsgaard 3 

Iron : Zapffe 

Lead, Boulder Creek district: Kiilsgaard 2

Boundary County : Kiilsgaard 1 

Hailey-Bellevue area : Anderson, A. L. 

Triumph-Parker mine area: Kiilsgaard 3

Lead-silver, Mayflower area: Fryklund 

Lead-zinc, Coeur d'Alene district:

Shenon

Mica pegmatites : Stoll 

Ore mineralization : Hulin 

Silver, Boulder Creek district: Kiilsgaard 2

Hailey-Bellevue area : Anderson, A. L. 

Triuinph.-Parker mine area: Kiilsgaard 3 

Uraninite, Coeur d'Alene district: Thurlow 

Volcano district, mineralization : Alien,

R. M. 2

Zinc, Boundary County : Kiilsgaard 1 

Triumph-Parker mine area: Kiilsgaard 3 

Geologic maps.

Beryl pegmatites : Stoll

Boundary County, lead-zinc properties :

Kiilsgaard 1

Hailey-Bellevue area : Anderson, A. L. 

Livingston mine area, Boulder Creek

district: Kiilsgaard 2 

Mayflower area : Fryklund 

Mica pegmatites : Stoll 

Triumph-Parker mine area : Kiilsgaard 3 

Historical geology.

Brazer formation : McLaughlin, K. P. 8 

Snake River Plains : Bayless 

Wells formation, Pennsylvanian: McLaughlin, K. P. 3 

Mineralogy.

Gems: Carpenter, J. T.; Dake 1

Mineral collecting : Dake 1

Uraninite, Coeur d'Alene district:

Thurlow 

Petrology.

Boundary County, lead-zinc mineralization : Kiilsgaard 1 

Physical geology.

Snake River Plains, structure: Baylesa
330 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Igneous rocks. See also Batholiths ; Dikes ; 

Intrusions ; Magmas ; Petrology ; 

Rock descriptions; Stocks.

Age determination, by accessory minerals': Larsen, E. S. 2

California, Friant formation, volcanic

ash : Trauger

Macdoel quadrangle, volcanics : Williams, H.

Quien Sabe volcanics: Lelth, C. J. 3 

Toowa Valley: Webb

Colorado, Boulder County: Larsen, V. B.

Columbia River basalt: Baldwin, E. M.; 

Campbell, C. D.; Fuller, R. E. 1; 

Trimble; Wallace 1

Connecticut, Preston area: Sclar 2

District of Columbia, Rock Creek Park: 

Fellows

Dominican Republic, Maim6n-Hatillo 

district: Koschmann 1

Elastic moduli: Hughes

Elements, spectrographic determination : Fairbairn 3

Granite, origin: Chayes 2; Koschmann 

3; Turner 4

Greenland, Kap Daussy dikes, differentiation : Vincent

Tertiary, correlation with Scotland : 

Tyrrell

Gulf of St. Lawrence, Aguanish-Washicoutai Bay area: Claveau

Igneous contacts, variation in chemical 

composition : Dennen

Manitoba, Wanipigow River area: Davies, J. F. 

Weldon Bay area : Kalliokoski

Maryland, Baltimore-Patapscp aqueduct, cross-section : Herz

Massachusetts, Brockton quadrangle: 

Chute 1

Mexico, Parlcutin region: Williams, H. 

Sinaloa : Mina Uhink 1

Missouri, intrusive near Avon, magnetic 

study : Holmes, C. R.

Montana, Marysville granodiorite stock : 

Knopf 2

New Brunswick, St. Stephen noritc:

Dunham 2

New Hampshire, Lovewell Mountain 

quadrangle: Heald, M. T. 2

New Mexico, Santa Rita area: Kerr,

P. F. 2

Newfoundland, Fogo Island area:

Baird, Z>. M.

Little Rattling Brook area, Ordoviclan: Hrlskevltch

North Carolina, dunlte : Gwirm

Northwest Territories, Aylmer Lake

area, pre-Cambrian : Lord 

Ghost Lake area : wrignt, e. M.

Matthews Lake area: Folinsbee 1

Walmsley Lake area : Follnsbee 2

Ontario, Os§ian Township, Timiskaming

district: Currie 

Radioactivity : Walter, J. P.

Igneous rocks Continued

Oregon, Coast Range, sills: Snavely 

John Day region : Thayer 

John Day River valley, welded tuff:

Wilkinson 

Pennsylvania, Harrisburg area, granophyre in diabase, origin: Hotz 2 

Potash-rich, formation: Higazy 

Quebec, Capsisit Lake area: Gilbert,

J. E. 2, 3

Dasserat Township, northwest: Dawson

Fiedmont area : Tremblay 1 

Gulf of St. Lawrence, MinganAguanish area: Longley 

Mattagami-Inconnu region : Imbault 2 

Radium content, ultramafic rocks:

Davis, G. L. 

Rare elements, investigation: Ahrens,

L. H. 5 ^

Rock-magma and rock-species: Shand

Saskatchewan, Pine Channel area, Lake

Athabaska district, pre-Cambrian :

Mawdsley

Texas, Big Bend National Park: Lonsdale 

United States, mineral production from :

McKelvey 3 

Utah, Iron County, eastern: Gregory,

H. E. 

Iron Springs district, welded tuffs:

Mackin 3

Washington, Olympic Peninsula volcanics, structure: Park 

Wyoming, Laramie Mts., peridotite:

Albanese

Tertiary volcanic rocks, petrography : Love 6

Yukon, Dezadeash area : Kindle 

Illinois.

State Geological Survey, activities:

Leighton 1 

Economic geology.

Coal, Herrin (No. 6) bed, structure:

Siever 1 

Petroleum, Niagaran reefs : Lowenstam

1 

Geologic maps.

General : Horberg 1

Peoria region: Horberg 2 

Gr.ound water.

Champaign County : Smith, U. IT. 1.

Chicago area: Buswell

Peoria region : Horberg 2 

Resources : Horberg 1

Rockford area: Smith, H. F. 2 

Historical geology.

Brewerville sandstone, Mississlppian -. 

Swann

Coal boclB. IPennsyl^nJar,, correlation

Wltll Spores; Bosanke 1

Illinois basin, cross section! Workman 2

McCraney limestone, Mississippian: 

Stainbrook 1
INDEX 331

Illinois Continued

Historical geology Continued

Mississlppian-Pennsylvanian unconformity : Siever 2 

Mt. Simon sandstone, Cambrian : Templeton

Neda iron formation, Silurian : Workman 1 

Niagaran reefs, oil accumulation:

Lowenstam 1 

Peorla region : Horberg 2 

Tertiary gravel, Henry County: Horberg 3 

Mineralogy.

Fluorite, liquid Inclusions, formation

temperature : Grogan 

Paleontology.

Amphibia, Mazon Creek nodules, Pennsylvanlan: Gregory, J. T. 1 

Botryopteris, new species, Pennsylvanlan : Mamay 2

Fossil plants, Mazon Creek, collections 

at University of Illinois : Stewart, 

W. N. 1

McCraney limestone : Stalnbrook 1 

Medullosa, McLeansboro formation, 

Pennsylvanian: Stewart, W. N. 2 

Reptilia, Mazon Creek nodules, Pennsylvanian : Gregory, J. T. 1 

Seed, McLeansboro formation, Pennsylvanian : Neely

Spores, coal beds : Kosanke 3 

Spores, Pennsylvanian : Kosanke 1 

Petrology.

Burlington limestone: Graf 1 

Calcareous rocks, acid etching: Lamar 

Fredonia oOlite, Ste. Genevieve formation : Graf 3 

Physical geology.

Waukegan harbor, sand migration:

Krumbein 3 

Physiographic geology.

Bedrock topography : Horberg 1 

Glacial deposits : Horberg 1 

Immersion media, high index: Meyrowitz 

Inclusions.

Orpiment crystals In quartz: Staples 2 

Quartz: Keller 2

Realgar crystals in quartz: Staples 2 

Index, Journal of Geology, 1928-1947:

Slmmons, J. G. 

Indiana.

Aeromagnetlc maps, Adams County:

U. S. G. S. 3

Alien County: U. S. G. S. 4 

Boone County: U. S. G. S. 5 

Carrol! County: U. S. G. S. 6 

Cass County: U. S. G. S..7 

Clinton County: U. S. G. S. 8 

Daviess County : U. S. G. S. 9 

De Kalb County: U. S. G. S. 10 

. Dubois County: U. S. G. S. 11 

Elkhart County: U. S. G. S. 12 

Gibson County: U. S. G. S. 13 

Hendricks County : U. S. G. S. 14 

Howard County : U. S. G. S. 15

Indiana Continued

Aeromagnetic maps Continued 

Huntlngton County: U. S. G. S. 16 

Kosclusko County: U. S. G. S. 17 

Lagrange County : U. S. G. S. 18 

Marshall County : U. S. G. S. 19 

Martin County : U. S. G. S. 20 

Miami County : U. S. G. S. 21 

Montgomery County: U. S. G. S. 22 

Noble County : TJ. S. G. S. 23 

Perry County : U. S. G. S. 24 

Pike County : U. S. G. S. 25 

Porter County: U. S. G. S. 26 

Putnam County : U. S. G. S. 27 

St. Joseph County : U. S. G. S. 28 

Spencer County : U. S. G. S. 29 

Steuben County: U. S. G. S. 30 

Tippecanoe County.: U. S. G. S. 31 

Vanderburgh County : U. S. G. S. 32 

Vermilllon County : U. S. G. S. 38 

Wabash County: U. S. G. S. 34 

Warren County : U. S. G. S. 35 

Warrick County: U. S. G. S. 36 

Wells County: U. S. G. S. 37 

Whitley County: U. S. G. S. 38 

Soils : Bushnell 

Economic geology. 

Coal: Wler, C. B. 2, 3

Jasonvllle quadrangle : Wler, C. B. 1 

Sand, Ohio River formation: Patton,

J. B. 

Geologic maps.

Boone County, glacial geology : Brown,

B. A.

Index : Boardman 3 

Jasonville quadrangle: Wler, C. B. 1 

Mlssissippian-Pennsylvanian, western,

sketch map : Esarey 2 

Noble County, glacial geology : Stallman 

Silurian, northern, sketch map : Esarey 1 

Ground water.

Boone County : Brown, B.'A.

General: Klaer

Mitchell Plain, karst hydrology: Wayne

2

Noble County : Stallman 

Historical geology. 

Devonian: Hare 

Mississipian: Hare 

Mississipplan-Pennsylvanlan, western:

Esarey 2

Ordovician, southeast: Kottlowskl 2 

Pennsylvanian, coal formations: Wler,

C. B. 2, 3

Silurian : Esarey 1; Hare 

Wabash area, Cenozoic: Thornbury 2 

Mineralogy.

La Porte meteorite: Roy, S. K. 2 

Paleontology.

Pollen profile, Merrillvllle bog : -Guennel 

Pinhook bog: Guennel 

Reed bog : Griffin, C. D. 

Silurian : Hare

Faunal lists : Esarey 1 

Sphenopsld cone, Pennsylvanian : Baxter
332 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Indiana Continued 

Physical geology.

Structure: Kottlowskl 2 

Physiographic geology.

Glacial geology : Thornbury 1 

Boone County : Brown, E. A. 

Noble County : Stallman 

Gravel deposits, distribution: Bieber 

Karst, Mitchell Plain : Wayne 2 

Karst valley, Bloomington area : Wayne

1

Lost River, swallow-holes : Malott 

Wabash Basin, glacial drift: McGrain 

Indium, in mica: 'Ahrens, L. H. 3 

Industrial minerals.

Arizona, nonmetallics : Wilson, E. D. 1 

Arkansas: Mather, W. B.

Clay: Funnell 

Asbestos: Bowles 

Bauxite, southeastern United States:

Bridge 

Beach sand deposits, southeastern United

States : Cannon, H. B. 

Bentonite, Missouri River Basin : Knechtel 3

California : Calif. Div. Mines Staff . 

Alameda County : Davis, F. F. 

San Dieguito area, pyrophyllite:

Jahns 2

Santa Barbara County : Dibblee 

Talc: Wright, L. A. 1 

Clay, Jackson Purchase region, Kentucky : Gildersleeve 1; Roberts, 

J. K. 1

New Hampshire : Chapman, D. H. 

Colorado : Argall 

Corundum, Craigmont mine, Ontario : Moyd 1

Montana: Clabaugh 1 

Feldspar, New Hampshire: Olson, ,T. C. 

Foundry sands, New Hampshire : Meyers 

Georgia :'Furcron 1; Peyton 

Jamaica: Hose 

Kansas, Cheyenne sandstone : Nixon 2 ;

Rose, K. E.

Kyanite,' southeastern United States: 

Furcron 2

Utah: Crawford 3

Limestone, Kentucky : Stokley 

Mirabliite, Utah : Beii, o. L.

'Mississippi, Carroll County: Vestal,

IT. B. 

MiSSOUri, dolomite : Keller 4

Montana, Dillon region, siliimanite:

Helnrich, E. W.' 1 

FergUS County : Robertson, A. F. 

New York, wollastonite : LadOfl

North Carolina -. Mwrclock

SCOtia, Hantsport area : Gotuise

upper Musquodoboit Valley i Cameron, J. R. i 

Oklahoma : Dott 3

Arbuckle Mts. : Ham 2

Ontario: Hewitt, D. F. 3 

'Asbestos : Hewitt, D. F. 2 

Olden-Bedford area : Harding, W. D. 1

Industrial minerals Continued

Pegmatites, New Hampshire : Olson,

J. C.

Pennsylvania : Stephenson, R. C. 

Petalite : Clark, J. D. 

Phosphate, Florida : Cathcart, J. B. 1 

Tennessee : Burwell, H. B. 

Wyoming : Cochran 1 

Pyrophyllite, southeastern United

States : Stuckey 1 

Quebec : Dresser

Marl : Waddington 2

Mingan Islands area, limestone : Waddington 1

Review, 1949 : Meyerhoff 1 

St. Vincent Island : Stacey 

Salt, northern Appalachians : Ames 

Saskatchewan, sodium sulfate : Tomkins

Serpentine, Texas : Barnes, V. E. 2 

Siliimanite, Montana : Heinrich, E. W. 1 

Southeastern United States : Furcron

2 ; Teague

South Carolina, barite : Van Horn 

Talc, southeastern United States :

Stuckey 1 

United States, northwestern : Kelly,

H. J. 

Vermiculite, southeastern United States :

Hunter, C. E.

Wollastonite, New York : Ladoo 

Wyoming, calcium carbonate : Brown,

P. L.

Phosphate : Cochran 1 

Insecta. See also Arthropoda.

Kansas, Permian : Carpenter, F. M. 

Montana, Ruby River area, Tertiary :

Zuidema 

Onychojapyao, new genus : Pierce, W. D.

5 

Insoluble residues.

Illinois, Neda iron formation : Workman 1 

Texas, El Paso formation : Vanderpool

Intrusions. See also Batholiths ; Dikes ; 

IgneOUS rOCkS ; Magmas ; Stocks.

Connecticut, clastic dike : Walton

Georgia, Piedmont area, diabase dikes :

Lester 2 

Manitoba, Wanipigow River area:

.

Missouri, near Avon, magnetic study -. Holmes. C. R. 

Montana, Judith Mts. : Goaaara

Hampshire, Mt. Pawtuckaway

quadrangle : FreedmaD 2

YOrK, Bear Mtn., Storm King

granite : Lowe

Ithaca area, perldotlte dike : BrOUghton 

Northwest Territories, Matthews Lake

area : Folinsbee 1

Ore deposits, relation to : Gross 

Oregon, Coast Range, sills : Snavely 

Pennsylvania, Safe Harbor, diabase : 

Chapman, R. W.
INDEX 333

In vertebra ta (general). See also Porlfera ; 

Echinodermata ; Mollusca ; Paleontology ; Evolution.

Anthozoa, Tabulata, Devonian, types: 

Stumm 1

British Columbia, Vancouver Island, 

west coast, Mesozoic: Jeletzky 2

California, Santa Maria district: Woodring

Canada, western, Devonian faunal 

zones : Warren, P. S.

Greenland, East, Cretaceous : Maync 1 

West, Quaternary : Laursen

Kentucky, Sleepy Hollow, Ordovician: 

Conldn 2

Mexico, Nuevo Leon, Cretaceous; Mullerried 3 

Jurassic : Mullerried 3

New Jersey, Esopus formation, Devonian : Herpers 2

New York, Silurian, Metaconularia, new 

species: Howell, B. F. 1

Oregon, Coos Bay, Tertiary: James, 

E. L.

Rate of evolution, species distribution : 

Sloss 2

Texas, Llano region, Carboniferous: 

Plummer, F. B.

Washington, northeastern, Paleozoic:

McLaughlin, K. P. 2 

Iowa.

Highway construction in loess : Gwynne

Loess soils: Riecken 

Historical.

Aplington formation, Mississippian: 

Stainbrook 2

Bignell loess: Ruhe 1

Glacial drift, Wisconsin, reclassification : Ruhe 3

McCraney limestone, Mississippian:

Stainbrook 1 

Paleontology.

Brachiopoda, Aplington formation, Mississippian : Stainbrook 2

Charophyta, Pennsylvanian: Thomas, 

L. A. 1

Conodonts, Burlington limestone, Mississippian : Youngquist 1 

Cedar Valley limestone, Devonian:

Downs

Sweetland Creek shale, Devonian, 

Thomas, L. A. 3

Cordaitean leaf, Pennsylvanian: Reed, 

F. D.

Goniatites, Pennsylvanian : Miller, A. K.

1

McCraney limestone : Stainbrook 1 

Micropaleontological zones: Thomas,

L. A. 2 

Plant microfossils, Cretaceous : Scheme!

2 

Petrology.

Sandstones, Des Moines series, Pennsylvanian : Clark, R. H. 

Physiographic geology.

Glacial drift, age differentiation : Ruhe 3

Iron.

Canada, Iron Range rocks, origin : Tanton 2, 3 

Clinton iron ores, origin, experimental

work: CastaHo 

Dominican. Republic, Maim6n-Hatillo

district: Koschmann 1 

Georgia, Cartersville district: Kesler 2 

Greenland : B0gvad 

Idaho: Zapffe 

Iron range rocks, Lake Superior district,

origin : Tanton 2, 3 

Kentucky, limonitic ore : Nelson, V. E. 

Labrador : Faessler 

Mexico: Flores; Tor6n Villegas 1, 2 

Michigan, northern peninsula: James,

H. L. 

New Jersey, Dover district, magnetite

deposits : Sims 

New Mexico, oolitic ores, origin : Kelley

4

New York, Clinton County magnetite deposits : Postel 2 

St. Lawrence County, magnetite,

origin : Leonard, B. F. 

Ontario : Hurst 2

Iron Range rocks, origin : Tanton 2, 3 

Steeprock Lake area : Hicks, H. S. 

Oregon : Zapffe

Pennsylvania, Dillsburg area, magnetite: Hotz 1

Pre-Cambrian ores, origin: Sakamoto 

Sedimentary deposits : Tyler, S. A. 

Utah, Iron Springs district, magnetic

surveys: Cook, K. L. 1 

Washington: Zapffe

Blewett deposit: Lamey 

Island arcs, contracting earth theory : Wilson, J. T. 4 ; Scheidegger 2 

Jade, California, jadeite : Bolander 

Jamaica, general geology, geologic map, 

ground water, and mineral resources : Hose 

Jointing.

Columbia River basalt: Trimble 

Fracture theory : Seigel 

Jurassic. See also Paleontology, Jurassic. 

Arizona: Hoover 

Arkansas, Cairo oil field : Goebel

Smackover limestone: Vestal, J. H. 

California, Santa Maria district: Woodring

Colorado: Hoover * 

McCoy area: Sheridan 

Mexico, llthology : Elizondo 

Oaxaca Province : Salas 

San Luis Potosi: Maldonado-Koerdell 1 

San Pedro Altetepan area : Mullerried

4 

Tamaulipas, Sierra de Cruillas: Maldonado-Koerdell 1 

New Mexico : Hoover 

United States, western interior, paleoecology: Imlay 1 

Utah : Hoover 

Wyoming, Green River Basin : Imlay 2

980682° 52- -22
Kansas.

Highway engineering: Horner 

Soils, lateritic, Cretaceous : Thorp 1 

Economic geology.

Clay, Barton County : Plummer, N. V.

Stafford County : Plummer, N. V. 

Construction materials, Decatur

County : Byrne, F. E. 4 

Jewell County: Byrne, F. E. 2 

Republic County: Byrne, F. E. 3 

Foundry sandstone, Cheyenne sandstone : Rose, K. E.

Lead, Picher field, structure and mineralization : Lyden 1 

Natural gas, Barton County : Nixon 1

Stafford County : Nixon 1 

Petroleum, Arbuckle formation, CambroOrdovician: Bartram 

Barton County : Nixon 1 

Eastern : Jewett 

Forest City Basin : Ruwwe 

Pre-Cambrian : Walters 

Stafford County : Nixon 1 

Picher mining field, mineral zones: Lyden 2 

Silica sand, Cheyenne sandstone: Nixon

2

Tri-State district, biogeochemical investigations : Harbaugh 

Zinc, Picher field, structure and mineralization : Lyden 1 

Geologic maps.

Barton County: Latta

Decatur County: Byrne, F. E. 4

Jewell County : Byrne, F. E. 2

Republic County: Byrne* F. E. 3

Rice County : Fent 2

Stafford County: Latta

Tonganoxie Valley : Lins .

Ground icater.

Barton County : Latta

Northeastern, glacial deposits: Frye 2

Rice County : Fent 2

Stafford County: Latta 

Historical geology.

Arbuckle formation, Cambro-Ordovlclan :

Bartram

Arbuckle limestone, lithologlc 20Dlll?.' 

Clalr

Barton County: Latta

i>ecatur Couty: Byrne, F. E. 4 

ESkrldge Shale, Permian : Wells, J. D.

Jewell County: Byrne, F. E. 2

Loess, Pleistocene : Frye 3

Northeastern, glacial deposits, Pleistocene : Frye 2

PCOria loess : Leonard, A. B. 2

Pleistocene soils: Frye 4 k

Republic County, Cretaceous, Quaternary : Byrne, F. E. 3

Rice County : Fent 2 

Stafford County: Latta 

Tonganoxie sandstone, Pennsylvanian: 

Lins

Kansas Continued 

Paleontology.

Crinoidea, Pennsylvanian : Strimple 2 

Fish, Cretaceous, Niobrara chalk : Gregory, J. T. 2 

Fish egg capsule, Cretaceous: Brown,

R. W. 4 

Foraminifera, Kiowa shale, Cretaceous:

Loeblich 3

Insecta, Permian : Carpenter, F. M. 

Mammalia, Pliocene, Rexroad formation :

Hibbard 2 

Petrology.

Arbuckle limestone, lithology : Clair 

Peoria loess, petrography: Swineford 

Physiographic geology.

Great Plains, depressions : Frye 1 

Pleistocene drainage : Fent 1 

Karst.

Florida: Jordan, R. H.

Indiana, Bloomington area: Wayne 1

Mitchell Plain : Wayne 2 

Kentucky.

Bibliography, 1744-1854 : Jillson 2 

Economic geology.

Clay, Jackson Purchase region : Gildersleeve 1; Roberts, J. K. 1 

Coal, Hyden quadrangle : Johnston, J. E. 

Iron, limonitic : Nelson, V. E. 

Limestones: Stokley 

Natural gas, Menifee field : Jillson 7 

Petroleum, Button Knob area : Jillson 5 

Cumberland County, first oil well:

Jillson 3

Island area: Jacobsen 

Dtica field : Bruce, C. H. 

Geologic maps.

Bourbon County : Hamilton, D. K. 

Fayette County : Hamilton, D. K. 

General: Stokley 

Jackson Purchase region : Roberts, J. K.

1 

Jessamine County : Hamilton, D. K.

scott County: Hamilton, D. K.

Ground water.

Bluegrass region : Hamilton, D. K. 

Bourbon County: Hamilton, D. K.

Fayette County : Hamilton, D. K. 

Jessamine County : Hamilton, D. K.

Scott county: Hamilton, D. K.

Historical geology.

Button Knob area : Jillson 5

Elk Lick Valley, stratigraphy and structure : Jillson 6

General; Stokley

Island area, Carboniferous : JaCObsen 

Jackson Purchase region, Paleozoic :

Freeman; Roberts, J. K. i

Mlsslssippian, flow markings: Rich 2 

Sleepy Hollow, Ordovlclan : Conkin 2

Paleontology.

Nautilold, Mlsslsslpplan : Miller, A K

6

Pelecypod,. new species, Ordovidan! 

Conkin 1

Sleepy Hollow, Ordovidan: Conkin 2
INDEX 335

Kyanite, California, Ogilby area: Campbell,

I. 3 

Labrador.

Economic geology.

Iron: Faessler 

Historical geology.

Geologic history : Faessler 

Paleontology.

Pollen diagrams', Quaternary: Wenner 

Petrology.

Igneous rocks: J<5r<Smine 

Metamorphic rocks: Je're'mine 

Physiographic geology.

Continental shelf, marginal fault: Holtedahl

Laccoliths, Montana, Shonkin Sag: Barksdale 

Lakes, Minnesota, northeastern, origin and

configuration : Zumberge 

Lakes, extinct. See Glacial lakes. 

Land bridges, types, Tertiary : Haeberle 2 

Landslides.

Mechanism: Terzaghi 2 

Ohio, earthflow and strip mining: Savage, C. N. 

Relation to sedimentary features:

Varnes 

Washington, Seattle, engineering geolr

ogy : Mackin 1 

Laterite.

Kansas, Dakota group, Cretaceous:

Thorp 1 

Nebraska, Dakota group, Cretaceous:

Thorp 1 

Lava. See also Igneous rocks.

Arizona, Grand Canyon : Maxson 1 

Columbia River basalt: Baldwin, B. M.; 

Campbell, C. D.; Fuller, R. E. 1; 

Trimble; Wallace 1

Columbia-Snake River plateau, northwestern United States: Fenton 

Mexico, Parlcutin: Fries 2 ; Pough 

Oregon, John Day region : Thayer 

Lead.

Arizona: Wilson, E. D. 2

Aravaipa district: Wilson, E. D. 4 

Bagdad area : Anderson, C. A. 1 

Blsbee district: Hqgue 

Globe-Miami district: Peterson, N. P. 

Iron King area: Creasey 2 

Johnson Camp area : Cooper, J. R. 

Pima district: Wilson, E. D. 3 

" St. Anthony area : Creasey 1 

Superior area : Wilson, E. D. 5 

Wallapai district: Dings 

British Columbia, Salmo area : Little

Sullivan mine: Swanson 

Cerussite, field test: Jerome 

Colorado; Aspen district: Volin

San Juan area : King, W. H. 

Geochemical prospecting, tests : Sokoloff 

Idaho, Boulder Creek district: Kiilsgaard 2

Boundary County : Kiilsgaard 1 

Coeur d'Alene district: Shenon 

Hailey-Bellevue area : Anderson, A. L. 

Mayflower area : Fryklund

Lead Continued

Idaho Continued

Triumph-Parker mine area: Kiilsgaard 3 

Kansas, Picher area, mineralization:

Lyden 1, 2 

Lead-zinc replacement deposits : Brown,

J. S. 3 

Mexico : Gonzalez Reyna 2

El Bote mine area, Zacatecas: Mapes

Vasquez

Taxco district: Fowler, G. M. 1 

Mississippi Valley: Behre 2 

Montana, Park County : Reed, G. C. 

Nevada, Pioche district: Young 

New Mexico, Houston-Thomas prospect, 

gravity investigations: Barnes, 

V. .E. 1

Royal John deposit: Soul6 

Santa Rita area, trace-element

studies: Graf 2 

Oklahoma, Picher area, mineralization :

Lyden 1, 2 

Ontario: Thomson 3 

Ores, source rocks: Verhoogen 

Origin, isotope data: Cannon, R. S. 

Quebec, Montauban-les-mines area,

Portneuf County : Smith, J. R. 

Symposium: Dunham 1 

Utah, Bingham area: Hunt, R. N. 

Yukon : Bostock

Keno Hill area: Smitheringale 

Leucoxene: Alien, V. T. 1 

Lignite. See also Coal.

British Columbia, Seymour River, plant

remains : Pierce, W. D. 1 

North Dakota, Standing Rock Indian

Reservation : Denson, N. M. 

Sulfur content: Burr ; Magnusson 

Western : Roe 

Petroleum source: Hubbard 

Reserves: Hubbard 

South Dakota, Cheyenne River Indian

Reservation: Denson, N. M. 

Standing Rock Indian Reservation :

Denson, N. M. 

United States: Selvig 

Vermont, Brandon lignite, Tertiary:

Barghoorn

Limestone. See also Construction materials. 

Acid etching: Lamar 

California, San Mateo area: Walker,

G. W. 1 

San Rafael Mts., Sierra Blanca:

Walker, G. W. 2

Illinois, Burlington limestone, petrography : Graf 1 

Kentucky : Stokley

Ore distribution, influence of permeability : Ohle

Permeability, determination : Locke 

Porosity, determination : Locke 

Quebec, Mingan Islands area : Waddington 1

Source rock of petroleum : Masters 

Strength, experiments : Robertson, E. C. 

Limonite, tubes, formation : Butler, S.
336 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Lineaments, structural significance: Kaiser,

B. P. 2 

Liquid inclusions.

Fluorite, Illinois: Grogan 

Geologic thermometry, use: Kennedy 2 

Quartz, North Carolina : Taber 1 

Temperature, hydrothermal solutions :

Smith, F. G. 

Loess.

Bibliography: Warnock

Foundation material: Judd

Iowa, highway construction : Gwynne

Western: Ruhe 1 

Kansas, Peoria loess: Leonard, A. B. 2

Petrography: Swineford 

Pleistocene: Frye 3 

Mississippi Valley: Leighton 2 

Origin: Leighton 2 

Louisiana.

Seismic prospecting : Ricker, N. 

Economic geology.

Benton field, geophysical survey : Von

Croy

Petroleum, Gulf Coast, continental 

shelf: Carsey

Eocene facies: Bornhauser 

Geologic maps.

Index : Boardman 4

Lower Red River Valley : Schultz, J. R. 

Historical geology. 

Cretaceous: Philpott 

Gulf Coast oil fields, Eocene facies:

Bornhauser

"Lower Red River Valley : Schultz, J. R. 

Pliocene-Pleistocene boundary: Russell,

R. J. 

Physiographic geology.

Lower Red River Valley : Schultz, J. R.

Luminescence, rocks: Daniels

Magmas and magmatlc differentiation. See 

alSO Igneous rocks ; Intrusions.

Crystallization, element segregation:

Osborn 1

General: Bowen 4 

Granitic, water content: Ingerson

Greenland, Kap Daussy dikes : Vincent 

Rock-magma and rock-species : Shand

Magnesite.

California, Needles deposit: VitaliaDO 

Red Mountain district: Bodenioa

Magnetite, New York, St. Lawrence COUHty,

origin : Leonixi-a, B. IT.

Maine.

Magnetic survey, Moosehead Lake area:

Hurley 3

Geologic maps.

Moosehead Lake area: Hurley 3

Historical geology.

Moosehead Lake area: Hurley 3

Mineralogy.

Beryl, Mt. Mica : Hurlbut 3

Collecting, Oxford County, pegmatites:

Jorgensen

Physiographic geology. 

Glacial marine limit: Lougee 

Gulf of Maine: Chadwick

Mammalia.

Arizona, Milk Creek area, Pliocene :

Reed, C. A.

Cuba, Cenozoic : Aguayo 

Florida, Melbourne area, Pleistocene:

Gazin 2 

Hoplophoneus, Oligocene carnivore:

Hough

Horse, brain evolution : Edinger 1 

Fluorine content of bones: Olsen 

Frontal sinus evolution : Edinger 2 

Mexico, San Josecito cave, Pleistocene : Stock 4 

Yepomera, Chihuahua, Pliocene:

Lance 

Hystricomorphs, evolution and paleogeography : Wood, A. E. 

Kansas, Rexroad formation, Tertiary:

Hibbard 2

Maryland, Chesapeake Bay region, Miocene : Gazin 1

Mexico, bear molars, Pliocene: Stock 3 

Bison, Pleistocene : Hibbard 1 

San Josecito cave, bear, Pleistocene :

Stock 5

Migration: Cook, H. J. 1 

Minnesota, Pleistocene: Stauffer 

Montana, Blacktail Deer Creek formation, Miocene: Hibbard 3 

New Mexico, San Juan Basin, primates,

Paleocene: Wilson, R. W. 

Oklahoma, Pleistocene: Meade 

Oregon, Astoria, sea cow, Miocene:

Shotwell

Oreodonts, revision : Schultz, C. B. 1 

Platygonus compressua, St. Louis, Missouri : Simpson 5

Quebec, Daveluyville area, whale, Pleistocene I Laverdiere

Saskatchewan, Tertiary: Russell, L. S.

3

South Dakota, Oligocene, cat: Macdonald, J. R. 2 

Texas, High Plains, Quaternary : Evans,

G. L.

Rodent, Tertiary: Hibbard 4

Man, fossil.

Alaska, Brooks Range area : Soleckl

California, La Jolla: Carter, G. F.

Mexico. Tepexpan, age determinations: 

De Terra

North America: Wormington

Manganese.

California: Trask 3

Cuba: Straczek

Geoi-sia, Cartersvllle district: Kesler 2 

iCO, LUCifer district: Wilson, i. v.

Punta Concepcion, Baja California:

Minerals, synthesis: wadsiey

Montana, Philipsburg district: 

Nevada, Esmeralda County : Benson,

W. T.

South Dakota : Tullis

United States, southeastern ; Miser i

Utah, Daggett Chief deposit: Helm
INDEX 337

Manitoba.

Economic geology.

Cat Lake-Winnipeg River area: Springer 

. Natural gas exploration : Allan 2

Nickel, Lynn Lake area : Allan 1

Petroleum exploration : Allan 2

Wanipigow River area: Davies, ,7. F.

Zinc, Flin Flon mine : Tanton 1

Sherritt Gordon mine: Tanton 1 

Geologic maps.

Brochet area: Canada G. S. 4

Cat Lake-Winnipeg River area : Springer

Crowduck Bay area: Canada G. S. 9

Devonian : Baillie

Elbow Lake area: Robertson, D. S.

Wanipigow River area: Davies, J. F.

Weldon Bay area: Kalliokoski 

Historical geology.

Devonian : Baillie

Lynn Lake area : Allan 1 

Mineralogy.

Gold, copper coating: Ferguson, R. B.

Monazite, age: Muench 1 

Paleontology.

Actinocamax, belemnite, Cretaceous: 

Jeletzky 1

Devonian: Baillie 

Petrology.

Brochet area : Canada G. S. 4

Crowduck Bay area: Canada G. S. 9

Elbow Lake area: Robertson, D.. S.

Lepidolite, geologic age : Ahrens, L. H. 2

Wanipigow River area: Davies, J. F.

Weldon Bay area, pre-Cambrian : Kalliokoski 

Physical geology.

Weldon Bay area, structure : Kalliokoski 

Maps (excluding Geologic maps, which see). 

Aer'omagnetic.

Indiana, Adams County : U. S. G. S. 3 

Alien County : U. S. G. S. 4 

Boone County : U. S. G. S. 5 

Carroll County : U. S. G. S. 6 

Cass County : U. S. G. S. 7 

Clinton County : U. S. G. & 8 

Daviess County : U. S. G. S. 9 

De Kalb County: U. S. G. S. 10 

Dubois County : U. S. G. S. 11 

Elkhart County: U. S. G. S. 12 

Gibson County : U. S. G. S. 13 

Hendricks County : U. S. G. S. 14 

Howard County : U. S. G. S. 15 

I-Iuntington County : U. S. G. S. 16 

Kosciusko County : U. S. G. S. 17 

Lagrange County : U. S. G. S. 18 

Marshall County : U. S. .G. S. 19 

Martin County : U. S. G. S. 20 

Miami County : U. S. G. S. 21 

Montgomery County : U. S. G. S. 22 

Noble County: U. S. G. S. 23 

Perry County: U. S. G. S. 24 

Pike County: U. S. G. S. 25 

Porter County : U. S. G. S. 26 

Putnam County : U. S. G. S. 27 

St. Joseph County : U. S. G. S. 28 

Spencer County: U. S. G. S. 29

Maps Continued

Aeromagnetic Continued 

Indiana Continued

Steuben County : U. S. G. S. 30 

Tippecahoe County: U. S. G. S. 31 

Vanderburgh County: U. S. G. S. 32 

Vermillion County : U. S. G. S. 33 

Wabash County : U. S. G. S. 34 

Warren County: U. S. G. S. 35 

Warrick County : U. S. G. S. 36 

Wells County : U. S. G. S. 37 

Whitley County : U. S. G. S. 38 

Maine, Moosehead Lake area: Hurley 3 

Missouri, Boone Terre quadrangle:

U. S. G. S. 39

Potosi quadrangle: U. S. G. S. 40 

New Brunswick, Pointe Verte area:

Canada G. S. 21 

New Mexico, De Baca County: U. S.

G. S. 41

Guadalupe County: U. S. G. S. 41, 42 

San Miguel County : U. S. G. S. 42 

Ontario, Bancroft sheet: Canada G. S. 2 

Bannockburn sheet: Canada G. S. 3 

Campbellford sheet: Canada G. S. 5 

Carleton Place : Canada G. S. 6 

Coe Hill sheet: Canada G. S. 8 

Kemptville sheet: Canada G. S. 12 

Merrickville sheet: Canada G. S. 17 

Perth : Canada G. S. 20 

Ontario-Quebec, Arnprior sheet: Canada

G. S. 1

Ottawa sheet: Canada G. S. 19 

Quebec, Clericy area : Canada G. S. 7 

Desboues area : Canada G. S. 10 

Kinojevis area : Canada G. S. 13 

Macamic area: Canada G. S. 16 

Taschereau area: Canada G. S. 23 

Geophysical. 

Mexico, gravity anomalies: De la O.

Carreno

North Carolina, Coastal Plain : Skeels 

Quebec, Southeast Dubuisson area:

Shaw, G. 1

Southeast Vassan area : Shaw, G. 2 

South Dakota : Carlson ; Petsch 

United States, gravity : Lyons 

Mineral.

California, Yolo County: O'Brien, J. C. 

Manitoba, Cat Lake-Winnipeg River

area: Springer

Montana, coal resources: Combo 

Nova Scotia, Sydney coal field, reserves:

MacKay 2 

Pennsylvania, Mt. Carmel quadrangle,

coal outcrops : Rothrock, H. E. 1 

Oil fields : Lytle 1 

Miscellaneous.

Arizona, isopach studies, preparation:

McKee 1 

Construction materials, types: Byrne,

F. E. 1

Lap-out, transgressive sediments : Turk 2 

Michigan, Northern Peninsula, radioactivity map : Stead 1 

Mining geology, preparation : Herness
Maps Continued

Miscellaneous Continued

Ontario, Lake Slmcoe district, physiographic map : Canada G. S. 15 

Photogeologic, compilation: Wasem 

Paleogeographic.

Montana, Cambrian : Lochman 1 ' 

Rocky Mtn. region, Paleozoic, Mesozoic :

Heaton

United States, western interior,. Jurassic : Imlay 1

Wyoming, Cambrian : Lochman 1 

Tectonic. 

Canada : Geol. Assoc. Canada

Notes on : Derry 2 

Wyoming, Green River Basin: Fidlar 1

Snake River region: Eardley 2 

Marble.

Yule marble, deformation experiments :

Turner 3

Petrofabrics : Rosenholtz 1; Turner 1 

Thermal expansion : Rosenholtz 2 

Marine geology : Kuenen 1 

Marl, Quebec: Waddington 2 

Martinique, volcanism: Perret 

Maryland. 

Economic geology.

Clay, Castleman coal basin: Waage"

In coal measures : Waag6 

Coal: Waage* 

Geologic maps.

Bear Island, Potomac River: Cloos 2 

Castleman coal basin : Waage" 

'Harpers Ferry gorge : Cloos 1 

Southern, Cretaceous and Tertiary:

Overbeck

Historical geology.

Brandywine area, Tertiary : Hack 

Cretaceous: Spangler 1 

Southern: Overbeck

Crisfleld well, Cretaceous, Tertiary :

McLean 4

Tertiary : Spangler 1 

Southern : Overbeck

Mineralogy. 

Mineral collecting, Baltimore: Kepper

Wllllamslte : Kaymona, C. L.

Paleontology,

Foramlnifera : McLean 1 

Crisfleld well: McLean 4

Mammalia, Chesapeake Bay region, Miocene : Gazin 1

Petrology.

Baltimore-Patapsco aqueduct, cross secBear Island, Potomac River, structure : 

Cloos 2

Peach Bottom slate : Agron 2

Peach Bottom syncline, deformation:

Agron 1 

South Mountain antlcllnorium : Cloos 1

Physical geology,

Bear Island, Potomac River, structure :

ClOOS 2

Peach Bottom slate : Agron 2 

Potomac River valley, deformation : Gair 

South Mountain anticlinoriuin: Cloos 1

Maryland Continued 

Physiographic geology. 

Caves: Da vies, W. B. 

Massachusetts. 

Geologic maps.

Brockton quadrangle, bedrock geology :

Chute 1

Surflcial geology: Chute 2 

Historical geology.

Brockton quadrangle: Chute 1 

Cambrian: Shaw, A. B. 2 

Cambrian contact, Hoppin Hill: Dowse 

Mineralogy.

Fayalite, Cape Ann : Palache 1 

Paleontology.

Foraminifera, Cape Cod Bay : Phleger 2 

Peat, No Mans Land island, Quaternary :

Benninghoff 2

Trilobita, Cambrian : Shaw, A. B. 2 

Petrology.

Allanite, age, Greenwich : Marble 2 

Brockton quadrangle : Chute 1 

Physiographic geology. 

 Brockton quadrangle: Chute 2 

Melilites, optical data : Schairer 1 

Mercury.

Arkansas, southwestern: McElvenny 

California, Altoona deposit: Swinney 

Cachuma district: Everhart 2 

Skaggs Springs deposit: Everhart 1 

Stayton district: Bailey, E. H. 

Deposition, physical chemistry: Krauskopf

Mexico, Huahuaxtla district, Guerrero : 

Pe"rez Siliceo

Mesozoic.

Alberta, Oallum Creek map-area : Douglas 1

Gap map-area : Douglas 1

Langford Creek map-area: Douglas 1

Mount Head area : Douglas 2

British Columbia, northeastern: McLearn 

Vancouver Island, -west coast: Jeletzky

2

Canada, interior plains: Link, T. A. 3

Colorado, Boulder area : Hardlng, K. C.

Effect of Uncompahgre uplift; Holmes,

C. N. 

TJlnta Basin : Stokes 1

Florida: Applin, P. L.

Georgia: Applin, P. L.

Greenland, nortnwest: Troelsen 2

Gulf Coast sediments, volume: Murray,

O. B3. 4

Pediments, western United States: 

Stokes 2

Rocky Mtn. region, paleogeography :

Heaton

Texas, Gulf Coast: Colle

Utab, Split Mountain area : Untermann

TJinta Basin: Stokes 1

Metamorphic rocks.

Baffin Island: Kranck 

California, Lucerne Valley, brucitemarble: Campbell, I. 1
INDEX 339

Metamorphic rocks Continued

District of Columbia, Rock Creek Park :

Fellows

Georgia, itacolumite : Grant 

Greenland, Kejser Franz Josephs Fjord

area, age: Huber 

Maryland, Bear Island, Potomac River :

Cloos 2

Peach Bottom slate: Agron 2 

Peach Bottom syncline, deformation :

Agron 1

New Hampshire, Crawford Notch quadrangle, Littleton formation: Henderson, D. M. 2 

Mt. Pawtuckaway quadrangle, Freedman 2

Woodsville quadrangle: Billings 2 

New York, Adirondacks, anorthositemarble contact zones, pyroxene and 

garnet: Buddington 

Grenville Series: Engel 

North Carolina, Masons Mtn., rhodolite

gneiss: Heinrich, B. W. 6 

Northwest Territories, Walmsley Lake

area: Folinsbee 2 

Pennsylvania, Peach Bottom slate:

Agron 2 

Peach Bottom syncline, deformation :

Agron 1

Plagioclase, twinning: Turner 2 

Quebec, Cawatose area : Wahl 

Gabbro Lake area: Bdland 2 

Wakeham Lake area : B61and 2 

Saskatchewan, Pine Channel area, Lake 

Athabaska district, pre-Cambrian : 

Mawdsley

Stratigraphy in the study of : Billings 1 

Study, methods : Billings 3 

Texas, Van Horn Mts., amphibolites:

Flawn 

United States, mineral production from : McKelvey 3 

Vermont, Bradford-Thetford area : Hadley, J. B.

East-central, Paleozoic : White, W. S. 

Woodsville quadrangle: Billings 2 

Metamorphism.

Connecticut, Preston area : Sclar 2 

Maryland, South Mountain anticlinorium: Cloos 1

Montana, Philipsburg area : Holser 

Pennsylvania, Safe Harbor, contact

metamorphism : Chapman, R. W. 

Relation to orogeny: Bucher 2 

Meteorites.

Arizona, Canyon Diablo, chemical analysis : Buddhue 2 

Internal structure and location : Nininger 2

California, Goose Lake: Leonard, F. C. 

Carolina bays, origin: Melton 1 

Craters, formation : Rinehart 

Georgia, Smithonia meteorite: Roy,

S. K. 1

Indiana, La Porte meteorite: Roy, 

S. K. 2

Meteorites Continued

Meteoritic dust: Buddhue 1 

Meteoritic material in concretions:

LaPaz 

Mexico, Arispe, chemical analysis:

Buddhue 2 

New Mexico, Albuquerque : Beck, C. W. 1

Malaga: Wilson, B. H. 

Nininger collection: Nininger 1 

Oregon, Port Orford: Pruett

Sams Valley: Morley 

Radium content: Davls, G. L. 

Schreibersite, synthetic : Buddhue 4 

Stove Creek meteorite, Wyoming, discredited : Crawford 2 

Mexico.

Gravity anomalies, Campeche: Cornejo

Toledo

Maps: De la 0. Carrefio 

Tabasco: Cornejo Toledo 

Yucatan : Cornejo Toledo 

Parlcutin Volcano, bibliography : Hatt 

Radioactive logging, northeast Mexico :

Cervera del Castillo 2 

Seismic investigations, Salina Basin, 

Tehuantepec Isthmus : Basurto Garcla 

Economic geology.

Antimony, Antimonio district, Sonora :

Guiza; White, D. E. 1. 

Chiapas, southern : Mullerried 1 

Coal, Coahuila: Gonzalez Reyna 3 

Coal resources : Tor6n Villegas 1, 2 

Gravimetric exploration : Garcfa Rojas 1 

Iron : Flores ; Tor6n Villegas 1, 2 

Lead : Gonzalez Reyna 2

El Bote mine area, Zacatecas : Mapes

Vasquez 

Lead-zinc, Taxco district: Fowler,

G. M. 1 

Manganese, Lucifer district: Wilson,

I. F. 

Punta Concepcion, Baja California:

Noble 2 

Mercury, Huahuaxtla district, Guerrero :

P6rez Siliceo.

Mineral resources: Gonzalez Reyna 1 

Natural gas, exploration : Garcfa Rojas 2 

Petroleum: Alvarez 2; Gibson; Ver

Wiebe

Development: Guzman 2 

Exploration: Aguilar ; Garcla Rojas

2

Lower California : Mina Uhink 2 

Moralillo field: Castill6n B.: Suarez

C.

Northeast, borehole exploration methods : Cervera del Castillo 1 

Poza Rica area: L6pez Ramos 1;

Luna 

Reserves : Barnetche; Cumming ; Noriega

Seismologic exploration: Rummerfleld 

Tampico Basin : De Alba 

Veracruz basin : Viniegra O.

Geophysical exploration : Espinosa 

Tin, Durango: Smith, W. C.
340 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Mexico Continued

Economic geology Continued 

Zinc : Gonzalez Reyna 2

El Bote mine area, Zacatecas : Mapes

Vasquez 

Geologic maps.

Antimonio district, Sonora : Guiza ;

Whitev D. E. 1 

Cedros Island : Osorio Tafall 

Cerro Pel6n area, sketch map : Benavides

G. 2

Chiapas, southern : Mullerried 1 

Durango tin deposits : Smith, W. C. 

El Bote mine area, Zacatecas : Mapes

Vasquez

Guerrero, northeast ; Guzman 1 

Gulf of California islands : Anderson,

C. A. 2 

Huahuaxtla district, Guerrero : P6rez

Siliceo

Lower California : Anderson, C. A. 2 

Lucifer district : Wilson, I. F. 

Macuspana region, Tabasco, sketch

map : Guti^rrez Gil 

Moloacan-Ixhuatlan area, Veracruz,

sketch map : Contreras 

Oaxaca Province : Salas 

Parlcutin region : Williams, H. 

Reynosa area : Asoc. Mex. Geol. Petrol. 

Sinaloa : Mina Uhink 1 

Taxco district : Fowler, G. M. 1 

Tenosique area, Tabasco Province :

Benavides G. 1 

Historical geology.

Antimonio district : Guiza

Becerra formation, Pleistocene ; Arellano 2

Cedros Island : Osorio Tafall 

Cenozoie, Gulf of California area : Durham 1 

Cerro Pel6n area, Veracruz : Benavides

G. 2 

ChiapaS, Southern : Mullerried 1

Comalcaleo area, TabaSCO '. AlVflrGZ A., J. 

General : Flores

Guerrero, northeast:

Gulf of California islands, Tertiary:

Anderson, C. A. 2

Inde-Cieneguillas district, Durango :

Main, F. H. 

Juarea MtS., Cretaceous : Strain

Jurassic, San Pedro Altetepan area;

Mullerried 4

JuraSSiC Sediments, types, distribution : 

Elizondo

Lower California, petroleum areas '

Mina Unink 2

Tertiary : AnderSOD, C. A, 2 

Lucifer district : Wilson, I. F.

Macuspana region, Tabasco : Gutifirrez

Gil

Contreras 

Moralillo oil field : Castill6n B. ; Suarez

C. 

Oaxaca Province : Salas

Mexico Continued

Historical geology Continued

Oligocene, Tamaulipas: Meneses de 

Gyves

Paleozoic : Alvarez 1

Parlcutin region : Williams, H. »

Petroleum areas, stratigraphy : Alvarez 

2

Poza Rica area, well sections: L6pez 

Ramos 1

Reynosa oil field, Tamaulipas : Yzagulrre

Salina Basin, Tehuantepec Isthmus: 

Alvarez 3

San Luis Potosi, Jurassic: MaldonadoKoerdell 1

Sorites beds, Tampico-Tuxpan area, 

Oligocene: Lim6n-Gutie'rrez

Tabasco Basin: Cepeda

Tamaulipas, Sierra de Cruillas, Jurassic : Maldonado-Koerdell 1

Tehuantepec Isthmus : Garcla Tijerina

Tenosique area, Tabasco Province: 

Benavides G. 1

Teziutlan, Puebla, cross section, Jurassic, Cretaceous: L6pez Ramos 2

Veracruz basin : Viniegra O.

Alunite : Knlzek

Arispe meteorite, chemical analysis: 

Buddhue 2

Bystromite : Mason, B. H. 2

Garnets, pink, Lake Jaco, Chihuahua: 

Knowlton

Nuevo Le6n, occurrences : Mullerried 3 

Paleontology.

 Ammonites, San Pedro Altetepan area, 

Jurassic: Mullerried 4

Bear, San Josecito cave, Pleistocene: 

Stock 5

Bear molars, Pliocene, Chihuahua; 

Stock 3

Bison, Pleistocene : Hibbard 1

Brachiopod, Colima, Cretaceous: Maldonado-Koerdell 7

Cephalopoda, AlTOyO flC la Leona, Cretaceous : Maldonado-Koerdell 6

DentallUm, MiOCene : Alencaster-Ibarra 1

Echinoid, Colima, Cretaceous: Maldonado-Koerdell 7

EqUiSCtal, Cretaceous : Maldonado-Koerdell 2

Fish, Cretaceous : Maldonado-Koerdell 3

Foraminifera, cnoffateiia, cretaceous:

Maync 2 

Comalcalco well, Tabasco : Alvarez

A., J.

Gulf of California; Pliocene, Pleistocene : Natland 1

Sorites beds, Oligocene,

pan area : Lim 

Tamaulipas, Oligocene: Meneses de 

Gyves

Gulf of California islands : Durham 1 Horse, San ffoew-ito cttve, i?ieistooene -. Stock 4

Yepomera, Chihuahua, , Pliocene; 

Lance
INDEX 341

Mexico Continued

Paleontology Continued

Lower California : Durham 1

Man, age determinations : De Terra

Mollusca, Ixhuatlan-Moloaciin area, 

Veracruz, Miocene: AlencasterIbarra 2

Nuevo Le6n, Jurassic and Cretaceous : 

Mullerried 3

Oaxaca Province, fossil lists : Salas

Ostracodes : Tellez-Gir6n

Paleobotany, catalog: Maldonado-Koerdell 4

Plants, age determinations : De Terra

Pollen analysis : Sears

Rudistid, Los Hornos, Cretaceous: Mullerried 6

Tamaulipas, Sierra de Cruillas, Jurassic : Maldonado-Koerdell 1

Vaseyanthus, vine, Tertiary : Gentry 

Petrology.

Phosphorite nodules, submarine : Emery 

1

Sinaloa, rock descriptions: Mina Uhink 

.1

Volcanics, Parlcutin region: Williams, H. 

Physical geology. .

Inde-Cieneguillas district, Durango, 

structure : Main, F. H.

Parlcutin Volcano : Derruau ; Fries 2 ;

Ord6fiez; Pough 

Aqueous emanations: Foshag

Reynosa oil field, Tamaulipas, structure : Yzaguirre

Sedimentation, Gulf of California:

Revelle 

Physiographic geology.

Chiapas, southern : Mullerried 1

Encantada cave, Morelos: Arellano 1

Gulf of California, submarine topography : Shepard 4

Parlcutin area, erosion : Segerstrom

Veracruz basin : Viniegra O. 

Mica.

Crystal lattice, expansion: Barshad

Fluorine, synthesis : Hatch ; Van Valkenburgh

Grinding effects : Parkert

Idaho: Stoll

Indium content: Ahrens, L. H. 3

Montana: Stoll

Quebec, Sagard-Cailleres area: Ross, 

S. H.

Refractive index measurement: Girault

Sericites, high-silica: Schaller 2

South Dakota, Custer County: Needham

Tin content: Ahrens, L. H. 3

United States, southeastern, characteristics : Jahns 1 

Pegmatites : Parker, J. M. 

Michigan.

Bibliography: Stewart, D.

Iron River district, magnetic surveys : Wier, K. L.

Michigan Continued

Radioactivity map, Upper Peninsula:

Stead 1 

Economic geology.

Coal, reserves : Averitt 2 ; Cohee 

Iron, Upper Peninsula: James, H. L. 

Geologic maps.

Felch Mtn. district: Button

Iron River-Crystal Falls district: Dutton

Menominee district: Dutton 

Historical geology. 

Felch Mtn. district: Dutton 

Geologic history : Martin, H. M. M. 

Iron River-Crystal Falls district: Dutton

Menominee district: Dutton 

Upper Peninsula, geologic history, popular account: Vietzke 

Mineralogy.

Calcite, Seneca copper mine: Spiroff 

Champion area, Upper Peninsula:

Mandarino ' 

Fulgurites, Lake Michigan : Hurd 

Paleontology.

Corals, Traverse group, Devonian:

Stumm 3

Fenestella, Devonian, Michigan : Elias 4 

Fossil burrows, pre-Cambrian : Faul 

Graptoloidea, Utica shale graptolites:

Decker, C. E. 1

Pelecypods, Devonian : La Rocque 

.Spores, Pennsylvania!): Arnold 

Petrology.

Iron formation, Upper Peninsula:

James, H. L. 

Physical geology.

Felch Mtn. district, structure: Dutton 

Iron River-Crystal Falls district, structure : Dutton

Menominee district, structure : Dutton 

Salina formation, ripple mark: Kaufmann, D. W. 

Physiographic geology. 

Beach erosion : Brater 

Crystal Lake, submerged shelf: .Evans,

O. F. 1

Sleeping Bear dune : Gates 

Microsauria, Paleozoic: Romer 2 

Military geology.

General: Hunt, C. B. 1

Sedimentary materials, role: Whitmore

United States Geological Survey unit:

Hunt, C. B. 1 

Mine rock, mineralogy and petrography:

Windes 

Mineragraphy.

Ore mineral identification, polarization

figures : Cameron, E. N. 1 

Rankin Inlet nickel-copper deposit,

Northwest Territories : Pelzer 

Mineral collecting.

California, gems: Henry

San Benito County: Dake 3 

Idaho : Carpenter, J. T.; Dake 1 

Maine, Oxford C°unty, pegmatites : Jorgensen
342 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Mineral collecting Continued

Maryland, Baltimore: Kepper 

Mexico, pink garnets: Knowlton 

Michigan, Champion area : Mandarine

Lake Michigan, fulgurites : Hurd 

Missouri, McDonald County : Patterson,

T. A. 

St. Louis area, fluorite : Schraut

Millerite: Schraut 

Montana: Dake 1 

Nebraska, Bayard, quartz varieties:

Mitchell, R. S.

Nevada, Virgin Valley, opal: Hodson 

New Jersey, carnelian : Zodac 2 

Oregon : Dake 1

Pennsylvania, Crystal Hill, quartz crystals : Lee, O. I. 

Utah, Tintic District, epsomite: Meissner

Virginia, babingtonite: Cosminsky 

Washington : Dake 1 

Forest: Powell, R. D. 

Gems: Fernquist 

Wyoming: Dake 1 

Mineral deposits.

Alabama, Coosa County, tin : Reed, A. H. 

Alaska, Prince William Sound district,

copper: Mofflt 1 

Arizona, Aravaipa district, lead and

zinc : Wilson, E. D. 4 

Bagdad area, lead and zinc : Anderson,

C. A. 1

Bisbee district, lead and zinc: Hogue 

Boulder Canyon area: U. S. Bur. Reclamation 

Globe-Miami district, lead and zinc:

Peterson, N. P. 

Iron King area, lead and zinc: Creasey

2 

Johnson Camp area, lead and zinc:

Cooper, J. R.

' Pima district, lead and zinc : Wilson, 

B. D. 3

St. Anthony area, lead-zinc: Creasey

a

Superior area, lead and zinc: Wilson, 

E. D. 5

Wallapai district, load and zinc :

Dings

Arkansas, industrial minerals : Mather,

W. B.

Southwestern, mercury: McEivenny 

British Columbia, Salmo area: Little

California : Calif. Div. Mines stare

 Altoona mercury mine: Swinney

Cachuma district, mercury : Everhart 

2

Madera County: Logan, C. A,

Needles area, magnesite : Vitaliano

Perlite; Chesterman

Sonoma County : Honke

Stayton district, antimony : Bailey,

E. H.

Mercury : Bailey, E. H. 

Canada, antimony: McClelland

Mineral deposits Continued

Colorado, Aspen district, lead-zinc:

Volin

Boulder County : Larsen, V. B. 

Pegmatites : Hanley 

San Juan area: King, W. H. 

Cuba, manganese : Straczek 

Exploration : Peale ; Wisser 1 

Geologic principles: Gidel 

Georgia, sillimanite : Teague 

Hypogene, classification: Schmitt 5 

Idaho, Coeur d'Alene district, uraninite :

Thurlow 

Kansas, Picher mining field, mineral

zones: Lyden 2 

Manitoba, Cat Lake-Winnipeg River

area: Springer 

Mexico, alunite : KnfSek

Chiapas, southern : Mullerried 1 

Nuevo Lefin: Mullerried 3 

Montana, corundum: Clabaugh 4 

Fergus County : Robertson, A. F. 

Fluorite: Ross, C. P. 

Highland Mts.: Sahinen 

Park County : Reed, G. C. 

Nevada, Boulder Canyon area: U. S.

Bur. Reclamation

Esmeralda County, manganese : Benson, W. T.

Lyon County, silver, gold : Stoddard 

Storey County, silver, gold ; Stoddard 

Virgin Valley, opal: Hodson 

New Mexico, Houston-Thomas lead-zinc

prospect: Barnes, V. E. 1 

Royal John deposit, lead-zinc : Soul6 

North Carolina, Coastal Plain : Richards,

H. G. 3

Sillimanite: Teague 

Northwest Territories, Discovery Yellowknife gold mine : Byrne, N. W. 

Nova Scotia, Coxheath copper mine: 

Cole

New Ross area : Cameron, J. R. 2

Oklahoma, Picher mining field, mineral

zones: Lyden 2 

Ontario, asbestos : Hewltt, r>. f. 2

Copper: Thomson 3

Kenogami Lake area, gold: Thomson i

Lake Superior, east shore, pitchblende : Nuffleld 

. Lead : Thomson 3

Nickel: Thomson 3

Steeprock Lake area. Iron : Hicks

H, S,

Teck Township, gold : Thomson 1

Zinc : Thomson 3

Quebec, Fiedmont area; Tremblay 1

Radioactivity : Keevil

Saskatchewan, Goldfleias area, radioactive minerals: Stephens

Sedimentary mineral deposits : McKelvey 1 

South Carolina, sillimanite: Teague
INDEX 343

Mineral deposits Continued

South Dakota, Custer County, mica:

Needham

Manganese: Tullis 

United States, coal: Pieldner 

Lignite: Selvig 

Northwestern : Kelly, H. J. 

Southeastern, mica : Jahns 1 

Review : Laurence 

Symposium: Snyder 

Uranium : Merritt 

Utah, Antelope Range, uranium : Quigley 

Daggett Chief deposit, manganese:

Helm

Pluorite: Buranek 

Great Salt Lake area, mirabilite : Bell,

G. L.

Grouse Creek Range, kyanite: Crawford 3

Pegmatites: Hanley 

Washington, Fidalgo Island, strontlanite, celestite: Caldwell, W. E. 

Mackinaw nickel mine: Milton 2 

Wyoming, pegmatites: Hanley 

Yukon : Bostock 

Mineral deposits, origin.

Arizona, Bagdad deposit, copper: Anderson, C. A. 3 

Emerald Isle, copper : Searls 

British Columbia, mining areas : British

Columbia Dept. Mines. 

Sullivan mine, lead-zinc : S'wanson 

Uranium : Stevenson 2, 3 

Zeballos area : Stevenson 1 

California, Klamath Mts., chromlte:

Wells, F. G. 

Manganese : Trask 3 

Ogilby area, kyanite: Campbell, I. 3 

Red Mountain magnesite district:

Bodenlos 

San Dieguito area, pyrophylllte:

Jahns 2 

Skaggs Springs mercury deposit:

Everhart 1

Talc: Wrlght, L. A. 1 

.Tungsten Hills deposits, tungsten:

Bateman, P. C. 

Canada, Appalachian region, structural

relations: Jones, I. W. 

Cordilleran region : Gunning 

Pre-Cambrian shield: Buffam 

Uranium : James, W. F. 

Colorado, beryl: Page, L. R. 1

Brush Creek mining district: Gabelman 1 

Caribou mine, radioactive ore: Ridland

Front Range: Levering 1 

Fulford mining district: Gabelman 1 

Northgate district, fluorite: Steven 

Uranium ores: Flscher, R. P. 

Cordierite: Helnrich, E. W. 4 

Dominican Republic, Maim6n-Hatillo 

district: Koschmann 1

Mineral deposits, origin Continued 

Epithermal ores: Schmitt 1, 4 

Florida, phosphate: Cathcart, J. B. 1 

Georgia, Cartersville district: Kesler 2 

Geotectonic relation : Cady, W. M. 3 

Gold deposits, relation to intrusives:

Gross

Hydrothermal alteration : Schwartz 

Hydrotherraal solution, flow determination : Smith, F. G. 

Idaho: Hulin

Boulder Creek district, silver-lead:

Kiilsgaard 2

Boundary County, lead-zinc ores: 

' Kiilsgaard 1 

Coeur d'Alene district, lead-zinc:

Shenon 

Hailey-Bellevue area, lead-silver and

gold: Anderson, A. L. 

Iron : Zapffe

Mayflower area, lead-silver : Fryklund 

Triumph-Parker mine area, lead-zinc,

silver, gold : Kiilsgaard 3 

Volcano district: Alien, R. M. 2 

Iron, sedimentary : Tyler, S. A. 

Iron ores, pre-Cambrian : Sakamoto 

Kansas, Picher lead-zinc field : Lytlen 1 

Kentucky, limonitic iron : Nelson, V. E. 

Labrador, iron : Faessler 

Lead, symposium : Dunham 1 

Magmatlc ores, centripetal genesis:

Sosman

Manitoba, Flln Flon mine, zinc : Tanton 1

Sherritt Gordon mine, zinc : Tanton 1 

Mercury: Krauskopf 

Mexico, Antimonio district, antimony :

Guiza ; White, D. E. 1 

Durango, tin: Smith, W. C. 

El Bote mine area, Zacatecas, leadzinc : Mapes Vasquez 

Huahuaxtla district, Guerrero, mercury : Pe'rez Siliceo 

Iron : Flores

Lead-zinc: Gonzalez Reyna 2 

Lucifer district, manganese: Wilson,

I. F. 

Punta Concepcion, Baja California,

manganese: Noble 2 

Taxco district, lead-zinc: Fowler,

G. M. 1 

Mineral formation, popular account:

Rowley

Mississippi Valley, lead-zinc : Behre 2 

Montana, Bozeman area, corundum:

Clabaugh 2 ; Heinrich, E. W. 5 

Butte district: Perry, E. S. 3 

Camp Creek corundum dep'osit: Helnrich, E. W. 2 

Dillon region, sillimanite: Heinrich,

E. W. 1

Philipsburg area : Holser 

Philipsburg district, manganese:

Loraln

Nevada, Pioche district, lead-zinc : 

Young
344 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Mineral deposits, origin Continued

New Jersey, Dover district, magnetite :

Sims

Franklin-Sterling area, zinc: Finger 

New Mexico, Central mining district,

zinc: Lasky, S. G. 1 

Harding pegmatite: Montgomery 

OOlitic iron : Kelley 4 

Santa Rita area: Kerr, P. F .2

Trace-element studies : Graf 2 

New York, Clinton County, magnetite :

Postel 2

North Carolina, Cabarrus County, tungsten : Jones, J. 0. 

Vermiculite : Hunter, C. E. 

Northwest Territories, Giauque Lake

area, gold : Quinn, H. A. 

Rankin Inlet nickel-copper deposit:

Pelzer 

Oklahoma, Picher lead-zinc field : Lyden

1 

Ontario, Cobalt and South Lorraine,

nickel-cobalt-silver ores : Bastin 1 

Craigmont corundum mine: Moyd 1 

Crow River area, gold : Chisholm 5 

Echo Township, gold: Armstrong,

H. S.

Iron : Hurst 2 

Iron Range ores : Tanton 3 

Kirkland Lake area, gold : Hawley 1 ; 

Perry, O. S. ; Savage, W. S. ; Thomson 2 

Lake Shore mine, Kirkland Lake area,

gold : Charlewood 

Macassa mine, Kirkland Lake area,

gold: Ward, W. 

Non-ferrous metals : Thomson 4 

Olden-Bedford area: Harding, W. D. 1

Osway Township, gold: Moorhouse 1

Porcupine area, gold : Hogg 

Red Lake area, gold : Chisholm 4 

Sault Ste. Marie area, radioactive deposits : Kesten 

Silver: Reid

gkead Township, gold : Hewitt, D. F. 1 

Sudbury, nickel: Internat. Nickel Co. 

Sylvanite mine, Kirkland Lake area,

gold : Macintosh

Toburn mine, Kirkland Lake area,

gold : Ogryzlo 

Wright-Hargreaves mine, Kirkland

Lake area, gold : Hopkins, H.

Ore distribution in limestone and dolomite, influence of permeability : Ohle

Ore eenoais : Brown. T. g. 2 : Schmltt 3 

Oregon, Greenhorn Mts., gold : Alien.

R. M. 1

Iron : Zapffe

Pennsylvania, Dillsburg area, magnetite : Hotz 1

Quebec : Dresser

Lesueur Township, Abitibi-East

County: Graham, R. B. 2, 3

Structural relations: Jones, I. W.

Mineral deposits, origin Continued

Saskatchewan, Flin Flon mine, zinc:

Tanton 1

Goldfields area : Robinson, S. C. 

Radioactive occurrences : Bichan 1, 2 

Sedimentary mineral deposits : Brown,

J. S. 3 

South Carolina, barite : Van Horn

Vermiculite: Hunter, C. B. 

South Dakota, Homestake gold, mine:

Noble 1 ; McLaughlin, D. H. 2 

Structural control: Ebbutt 

Teck-Hughes mine, Kirkland area, gold :

Griffin, K. 

Tennessee, Ducktown district, copper:

Simmons, .W. W. 

Eastern, zinc: Brokaw 

Mascot-Jefferson City area, zinc : Oder 

Phosphate: Burwell, H. B. 

Textbook : Bateman, A. M. 

Titanium : Pegau

United States, southeastern: Behre 1 

Barite : Kesler 1 

Bauxite: Bridge 

Beach sands : Cannon, H. B. 

Kyanite: Furcron 2 

Manganese: Miser 1 

Pyrophyllite: Stuckey 1 

Sillimanite: Furcron 2 

Talc: Stuckey 1 

Tungsten : Espenshade 

Uranium, oxidation zones: Everhart 3 

Utah, Bingham area, lead-zinc: Hunt,

R. N.

Silver Reef mining area, silver : 

Proctor

Uinta Basin, gilsonite: Murray, A. N.

Virginia, Austinville district, zinc : Oder 

Titanium : Pegau

Washington, Blewett deposit, ironnickel : Lamey 

Iron: Zapffe 

Yukon, Keno Hill area, lead-silver:

Smltheringale

Zinc, symposium : Dunham 1 

Mineral descriptions. See also Mineralogy. 

Adularia, crystallography : Laves 4

Optics : Chaisson 

Aguilarlte : Earley

Alaskaite, discredited: Thompson,

Bobert M. 2 

Allanlte : Kauffiman 2

New Jersey: Milton 1

Yosemite National Park, California : 

Button 2

Andradite, New Jersey: Milton 1

Antimony oxides: Mason, B. H. i, 3

Antofagastite : Frondel, C. 2

Aphthitalite, ammonian : Frondel, C. 5

Arcanite: Frondel, C. 5

Ardulnite, Utah, discredited : Strlngnani 2 

Arizonite, discredited: Overhoit

Arrojadite: Lindberg 1
INDEX 345

Mineral descriptions Continued

Asbestos: Bowles 

X-ray study : Beatty

Atelite : Frondel, C. 2

Benitoite, California: Anonymous 1

Berzelianite: Barley

Bornite: Frueh 1

Botallackite: Frondel, C. .2

Boulangerite: Kauffman 2

British Columbia, occurrences : Thompson, Robert M. 1

Bystromite, Mexico : Mason, B. H. 2

Cacoxenite, Pennsylvania: Gordon

Calcium phosphates: Farr

Carnotite: Murata

Celestite, Blair County, Pennsylvania: 

Hamilton, H. V.

Cenosite, crystal structure: Berry, 

L. G. 2

Chlldrenite: Hurlbut 2

Claudetite, crystal structure: Fruch 3

Clausthnlite : Earley

Cordierite, Colorado : Heinrich, E. W. 4

Cornetite : Berry, L. G. 1

Crookesite: Earley

Cryptomelane, structure: Mathieson

Chrysotile, tubular crystals : Bates 1

Endellite: Bates 2

Eosphorite : Hurlbut 2

Eriochalcite : Frondel, C. 2

Eucairite : Earley

Eudialyte, New Mexico : Clabaugh 3

Fayalite, Massachusetts : Palache 1

Gold, copper coating, Manitoba: Ferguson, R. B.

Graftonite: Lindberg 1

Guanajuatite: Earley

Halloysite: Bates 2

Bull Valley district, Utah: Crawford 1

Hauchecornite: Peacock 2

Hisingerite, Quebec : Osborne 2

Hiihnerkobelite, new : Lindberg 1 

 Hummerite, Colorado : Weeks, A. D.

Hydrocarbon, British Columbia : Watson 1

Hydromelanothallite : Frondel, C. 2

Ilsemannite : Staples 3

.Tadeite: Yoder 1

Jarosite, California: Hutton 1 

Thermal study: Kulp 1

Johannite: Hurlbut 1

Jordisite : Staples 3

Klockmannlte: Earley

Krennerite, crystal structure: Tunell 2

Lazulite-scorzalite series: Fecora

Leucoxene : Alien, V. T. 1

Lake Sanford, New York: Wheeler, 

E. P.

Liebigite: Evans, H. T. 1

Lossenite: Pearl

Louderbackite: Pearl

Malachite, unit cell: Ramsdell 1

Melanothalllte : Frondel, C. 2

Melonite, Colorado : Wahlstrom 2

Mineral descriptions Continued 

Miserite, Arkansas : Schaller 1 

Molybdenite, cleavage : Bailly 1 

Montmorillonite: McConnell 3, 4 

Montroseite, Colorado: Weeks, A. D. 

Mordenite, Utah : Stringlmm 2 

Natrolite, New Jersey : Milton 1 

Natroxonotlite, discredited: Schaller 1 

Naumannite : Earley. 

Nesquehonite, structure : Kinsolving 

Noutronlte, Utah : Stringham 4 

Northwest Territories, occurrences:

Thompson, Robert M. 1 

Oxammite : Frondel, C. 5 

Paraguanajuatite : Earley 

Paralaiirionite, Arizona : Palache 2 

Paratacamite : Frondel, C. 2; 

Parkerite : Peacock 1 

Parsonsite : Frondel, C. 3 

Peganite : Pearl 

Penroseite: Earley 

Perovskite, California : Murdoch 

Petalite: Clark, J. D. 

Phosphate-allophane, North Carolina:

Jaffe 1

Phosphuranylite: Frondel, C. 6 

Pseudomalachite : Berry, L. G. 1 

Pyrostilpnite : Peacock 4 

Radioactive minerals : Arnott; George,

D. R.

Randite, discredited : Frondel, C. 3 

Rectorite, crystal structure: Bradley,

W. F. 

Rhpdochrosite, ferroan zincian variety :

Gallon!

Sale"eite : Mrose.

Saskatchewan, Goldflelds area: Robinson, S. C. 

Scorzalite : Pecora 

Searlesite, Wyoming: Fahey 2 

Sericites, high-silica : Schaller 2 

Serpentine, Texas : Barnes, V. E. 2 

Shandite : Peacock 1 

Southern California batholith : Larsen,

E. S. 1

Sphaerite: Pe.arl 

Sulfur: Frondel, C. 4 

Tallingite : Frondel, C. 2 

Tiemannite : Earley 

Tourmaline, crystal structure : Donnay,

G. H.

Tyuyamunite: Murata 

Umangite: Earley 

Uranothallite, discredited : Evans, H. T.

1

Uranothorite, X-ray.data: Pabst 2 

Veatchite, California: Switzer 

Walpurgite: Evans, H. T. 2 

Wavellite: Gordon 

Wherryite, new, Arizona: Fahey .1. 

Xanthoconite : Peacock 4 

Yukon, occurrences: Thompson, Robert

M. 1 

Zepharovichite : Pearl 0
346 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Mineral descriptions Continued

Zinc sulflde polymorphs, Ohio : Frondel,

C. 1;. Seaman

Pennsylvania : Frondel, C. 1; Seaman 

Thermal decomposition: Hopkins,

J. P.

Zincian rockbridgeite : Lindberg 2 

Mineral resources. See also subheading 

Economic geology under the various states and countries. 

Appraisal, comments : Lasky, S. G. 4 

Arkansas, industrial minerals: Mather,

W. B. 

British Columbia: British Columbia

Dept. Mines

California : Calif. Div. Mines Staff 

Alameda County : Davis, F. F. 

Madera County : Logan, C. A. 

Neenach quadrangle : Wiese 2 

Yolo County : O'Brien, J. C. 

Coal, surveys : Averitt 1 

Estimation, statistical method : Lasky,

S. G. 5

Georgia : Furcron 1 

Greenland : B0gvad 

Jamaica: Hose 

Mexico: Gonzdlez Reyna 1 

Michigan, coal: Cohee 

North Carolina: Murdock 

Hot Springs area : Oriel 

Pennsylvania : Gault 1

Industrial minerals : Stephenson, R. C. 

Symposium : Pa. Acad. Sci. 

Quebec : Dresser 

Radioactive minerals : Bain 1 

United States, appraisal : Lasky, S. G. 2 

Southeastern, symposium ; Snycler

Uranium : Wright, R. J.

Virginia, James River Basin : Roberts,

J. K. 2

Piedmont province : Brown, W. R. 

Valley and Ridge province : Edmundson

Yukon : Bostock 

Mineralogy. For areal, see subheading

Mineralogy under the various states

and countries. 

Abrasion hardness: Jaggar

Atomic models for teaching : Henderson, 

D. M. 1

Authigenic minerals, West Virginia sandstones : Heald, M. T. 4

Calcium carbonate, solution rate : Garreis

Carbonate rocks, mineral and chemical

characteristics : Gault 2 

Chert, surface features, electron microscope study : Folk 2

Clay, infrared absorption : Kcll»r 1

Copper chlorides: Frondel, C. 2

Crystal structure, atom photographs:

Buerger 7 

Dark-field stereoscopic microscope : Ross,

C. S.

Diamonds, coated: Ousters 

0 Differential thermal curves : Kauffman 1

Mineralogy Continued

 Disorder in sulfldes: Frueh 2

Feldspars, crystallization data : Bowen 

3

Fluoaluniinates, structural classification : Pabst 1

Garnet system, spessartite-yttrogarnet, 

substitution of aluminum for silicon : Yoder 4

Grossularite, stability relations, experiments : Yoder 2

Guano minerals : Hutchinson, G. E.

Immersion liquids, high index: Meyrowitz

Jadeite, formation : Yoder 1

Lazulite-scorzalite series : Pecora

Limonite tubes, formation : Butler, S.

Manganese oxides, thermal analysis: 

Kulp 2

Metamict state : Roberts, C. N.

Micas, refractive index measurement: 

Girault

Mine rock, types: Windes

Mineral formation, popular account: 

Rowley

Minerals as a hobby : Meen 1

Minerals, electrical resistivity: Telkes

Minerals in medicine: Delario

Minerals, thermoelectric power: Telkes

Montmorillonite, crystal chemistry : McConnell 3

Olivine series, correlation of properties : 

Poldervaart

Optical, teaching models: Chapman, 

C. A. 1

Ore mineral identification, polarization

figures: Cameron, E. N. 1

Orthopyroxene series, correlation of 

properties : Poldervaart.

Plagloclase series, correlation of properties : Poldervaart

Quartz, inclusions : Keller 2

Solubility, high temperatures : Morey 

Radioactive minerals : George, D. R. 

Radioactive surface films on minerals: 

Church

Realgar and orpiment sagenite : Staples

Refraction, demonstratic Denning

Refractive index determination : Rosenfeld, J. L. 

Sedimentary rocks, mineral particles:

Ailing

Selenidea : Earley

Sericites, high-silica: Schaller 2

Silicates, reaction energy : Gruner 

Stalactites ; Hicks, F. L. 

Stalagmites: Hicks, F. L.

Water in minerals: Keller 6

Mining geology.

British Columbia, mining geophysics:

Smith, A.

Data, compilation and preparation :

Herness

General: Cochran 2
INDEX 347

Mining geology Continued

Geologist, functions: Bateman, J. D.

Geophysics in : Geoffroy

Maps, preparation : Herness

Ore deposits, statistical estimation:

Lasky, S. G. 5 ' 

Review, 1949: Lasky, S. G. 4 

Scope: Kaiser, B. P. 1 

Minnesota.

Historical geology.

Franconia formation, Cambrian: Bell,

W..C. 2 

Glacial drift, Wisconsin, reclassiflcatlon : Rune 3 

Paleontology.

Mammalia, Pleistocene drift: Stauffer 

Physiographic geology.

Bedrock lakes, origin and configuration :

Zumberge

Miocene. See Tertiary. 

Mississippi.

Bibliography: Field, G. W. 

Economic geology.

Mineral resources, Carroll County:

Vestal, F. E. 

Petroleum : Thomas, E. P.

Brookhaven field : Womack 

Geologic maps.

Carroll County : Vestal, F. E. 

Index: Boardman 5 

Historical geology.

Carroll County: Vestal, F. E. 

Cretaceous: Conant; Miss. Geol. Soc.

Subsurface: Braunstein 

Fearns Springs formation, Tertiary:

Mellen 

Paleontology.

Foraminifera, Cretaceous, list: Miss.

Geol. Soc. 

Physical geology.

Oil-bearing structures: Thomas, E. P. 

Mississippi Valley.

Earthquakes: Waterways Expt. Sta.

June 30, 1947 : Heinrich, R. R. 1 

Engineering problems: Turnbull 

Faulting : Waterways Expt. Sta. 

Foraminifera, endothyroid, Mlssissippian : Zeller 

Geochemical prospecting: Fowler, G.

M. 2

Lead : Behre 2 

Loess: Leighton 2 

Ordovician stratigraphy : Agnew 1, 2 

Sediments : Turnbull 

Zinc: Behre 2

Mississippian. See Carboniferous. 

Missouri.

Aeromagnetlc maps, Bonne Terre quadrangle : U. S. G. S. 39 

Potosi quadrangle: U. S. G. S. 40 

Gumbotil, near Columbia, origin :

Hseung 

. Magnetic data, intrusive, near Avon:

Holmes, C. R.

St. Louis area, seismic wave velocities, 

Paleozoic formations: Kisslinger

Missouri Continued 

Economic geology.

Dolomite, Marshfield area : Keller 4

Tri-State district, biogeochemical Investigations : Harbaugh 

Historical geology.

Aux Vases sandstone, Mississippian: 

Swann

Marmaton group, Pennsylvanian : Cline 

1

Pennsylvanian, classification : Greene

Plattin limestone, Ordovician : Larson 2 

Diastems : Larson 1

Pleasanton group, Pennsylvanian : Cline 

1

Southwestern, Lower Mississippian:

Kaiser, C. P. 

Mineralogy.

Carnotite, Ste. Genevleve County : Muilenberg

Fluorite, St. Louis area: Schraut

Millerite, St. Louis area : Schraut

Mineral collecting, McDonald County : 

Patterson, T. A.

Uranium-bearing shale: Muilenberg 

Paleontology.

Bryozoan commensal with coral: 

Fischer, A. G.

Fauna, Pennsylvanian : Cline 1

Foraminifera, Ste. Genevieve County, 

Silurian : Dunn

Platygonus comprcssus, St. Louis:

Simpson 5 

Petrology.

Rhyolite porphyry, radioactivity and 

mineralization : Damon

Shale: Keller 5 

Physical geology.

Crooked Creek dome : 'Hendriks

Earthquake, Mississippi Valley, June 30,

1947 : Heinrich, R. R. 1 

Ste. Genevieve fault zone: Heinrich, 

R. R. 2 . Microseisms, St. Louis : Heinrich, R. R. 8

Solution cavities: Bretz 2

Thrusting, St. Clair County : Beveridge 

Missouri River Basin.

Bentonlte : Knechtel 3

Engineering geology problems : Dowling 

Mollusca. See also Cephalopoda; Gastropoda ; Invertebrata ; Pelecypoda ; 

Scaphopoda.

Colorado, South Canyon Creek area, 

Permian : Bass 2

Greenland, Disko Bugt, Quaternary: 

Harder

Mexico, Gulf of California Islands : Durham 1 

Ixhuatldn-Moloacan area, Veracruz,

Miocene: Alencaster-Ibarra 2 

Lower California : Durham 1

Nevada, Truckee formation, Pliocene: 

Yen

United States, mid-Continent, Pleistocene : Leonard, A. B. 1
348 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Molybdenum, Quebec, Fiedmont area : Tremblay 1

Monadnocks, Rocky Mts., origin : Hares 

Montana.

Hungry Horse Dam, engineering geology : Harshman 

Economic geology.

Beryl pegmatites : Stoll

Butte mining district : Perry, E. S. 3

Coal, reserves : Averitt 2

Map : Combo 

Corundum : Clabaugh 4 

Bozernan area, origin: Clabaugh 2;

Heinrich, E. W. 5 

Camp Creek area : Heinrich, E. W. 2 

Gallatin County : Clabaugh 1 

Madison County : Clabaugh 1 

Fluorite : Ross, C. P. 

Gold, Highland Mts. : Sahinen 

Gold placers, Helena area : Boulter 

Highland Mts. : Sahinen 

Manganese, Philipsburg district : Lorain 

Mica pegmatites : Stoll 

Mineral deposits, Fergus County : Robertson, A. F.

Natural gas, southeastern : Leatherock 

Park County, mineral resources : Reed,

G. C. 

Pegmatites, Bozeman area : Clabaugh 2 ;

Heinrich, E. W. 5

Petroleum, southeastern : Leatherock 

Phosphate, Highland Mts. : Sahinen 

Sllllmanite, Dillon region : Heinrich. 

E. W. 1

Southwestern : Klepper 

Geologic maps.

Beryl pegmatites : Stoll

Button Butte-Forestgrove area : Gardner, L. S. 

Camp Creek corundum deposit : Heinrich, E. W. 2

Corundum deposits : Clabaugh 1 

Dillon region, sillimanite deposits:

Heinrich, E. W. 1 

Fergus County : Robertson, A. F. 

Fluorite deposits : Ross, C. P. 

General : Billings Geol. Soc.

Hobson area: Vine 

Judith Mts. : Robertson, A. F. 

lilvingston formation, extent, sketch 

map : Richards, P. W.

Marysville granodiorite stock, sketch

map : Knopf 2

Mica pegmatites : Stoll 

North Moccasin Mts. : Robertson, A. F.

Philipsburg n-rea : noiser ; ILOJ-^III

Southwestern: Klepper

Three Forks-Whitehall area : Perry, 

E. S. 2

Historical geology.

MtS., raleocen

Brown, R. W. 1

Belt series, pre-Cambrian : Perry, E. S, 1 

Big Snowy group, Mississippian : Scott,

H. W.

Montana- Continued

Historical geology Continued

Blacktail Deer Creek formation, Miocene : Hibbard 3

Button Butte-Forestgrove area: Gardner, L. S.

Cambrian paleoecology : Lochman 1

Charles formation, Mississippian : Hadley, H. D.

Dillon region, Ruby Range: Heinrich, 

E. W. 1

Flaxville gravel, Tertiary: Russell, 

L. S. 3

Highland Mts.: Sahinen

Hobson area: Vine

Horeshoe Hills, Cambrian: Lochman 4

Livingston formation, Cretaceous-Tertiary : Richards, P. W.

Paleozoic sedimentation : Sloss 1

Southeastern, Paleozoic, subsurface: 

Leatherock

Southwestern: Klepper

Three Forks-Whitehall area: Perry, 

E. S. 2

Western : Billings Geol. Soc. 

Mineralogy.

Corundum : Clabaugh 4

Gems: Dake 1

Mineral collecting : Dake 1

Mineral deposits, Philipsburg area: 

Holser

Uranium in moss agate : Dake 4 

Paleontology.

Atrypa, new species, Devonian: Kottlowski 1

Foraminifera, Ellis formation, Jurassic:

Lalicker 

Jurassic : Loebllch 2

insecta, Ruby River area, Tertiary:

Zuidema

Mammalia, Blacktail Deer Creek formation, Miocene: Hibbard 3

Paleobotany, Ruby River area, Tertiary : 

Zuidema

Telegraph Creek formation, Sweetgrasa 

arch, Cretaceous: Cobban

Trilobita, Little Rocky Mts., Upper

Cambrian : Lochman 2' 

OrdOVician, Big Snowy Mts. : Lochman 3

Turtle, Miocene : Oelrich 

Petrology.

Butte ore deposit, alteration: sales i

Camp Creek area, pre-Cambrian : Heinrich, E. W. 2

Corundum : Clabaugh 1, 4

UISlilar»<a M-tia. : Sali}nen

Marysville granodiorite stock: Knopr 2

Philipsburg area, metamorphism: Hoiser

Shonkin Sag laccolith: Barksdale

TUT, limestone-dolomite content : Howard, A. D. 2

Physical geology.

Beartooth Mts., features caused by 

frost: Smith, H. T. D. 3
INDEX 349

Montana Continued 

Physical geology Continued 

Faulting, Tertiary: Pardee 

Judith Mts., structure : Goddard 

Little Rocky Mts., structural domes:

Knechtel 2

Southwestern, structure: Eardley 3 

Physiographic geology.

Sink hole, near Armington : Green, J. R. 

Southwestern : Eardley 3 

Tertiary peneplain, faulting: Pardee 

Moraines. See also Glacial geology.

California, Mono Lake, Pleistocene:

Putnam

Ohio, Green County : Goldthwalt 1 

Utah, Little Cottonwood Canyon : Ives 2 

Mounds.

California, origin : Masson 

Origin : Price, W. A. 

Mountain building. See Orogeny. 

Natural gas. See also Oil and gas fields. 

Alabama : Jones, W. B. 1 

Alberta : Link, T. A. 5

Callum Creek map-area: Douglas 1 

Gap map-area : Douglas 1 

Langford Creek map-area: Douglas 1 

Lloydminster area: Coons 

California: Calif. Div. Mines Staff;

Hazzard 3

Kirby Hill field : Frame 1 

Sacramento Valley area, potential:

Hobson

Santa Barbara County : Dibblee 

Canada, western: Link, T. A. 4 

Colorado : Dobbin 1 

Douglas Creek field: Gow 

San Juan Basin, Cretaceous rocks:

Silver 2

Depth of occurrence : Cloninger 

General: Rodrlguez A. 

Kansas, Barton County: Nixon 1

Stafford County : Nixon 1 

Kentucky, Menifee field : Jillson 7 

Manitoba : Allan 2 

Mexico, exploration : Qarcfa Rojas 2 

Montana, Button Butte-Forestgrove

area : Gardner, L. S. 

Nebraska, Julesburg Basin : McCanne 

New Mexico : Bartley 2

San Juan Basin, Cretaceous rocks:

Silver 2

New York, Cambro-Ordovlcian: Swartz 

North Carolina: Berry, E. W. 1 

Oklahoma, Le Flore County: Knechtel 1 

Ontario: Crozier

Southwestern : Evans, C. S. 

Pennsylvania, Cambro - Ordovician :

Swartz

Deep wells : Fettke 1 

Leidy Township : Cathcart, S. H. 1 

Reserves: Am. Gas Assoc.; Am. Petroleum Inst.; Lahee 

Saskatchewan, Lloydminster area:

Coons 

Texas: Bartley 2

Beddo field: FitzGerald 

Carthage field: Wilhelm

Natural gas Continued

United States, reserves : Am. Gas Assoc.;

Am. Petroleum Inst.; McGowen 

Utah : Eager 2

Clay Basin field : Fidlar 4 

Uinta Basin : Eardley 1 

West Virginia, northern, Devonian:

Reeves

Wyoming, Baxter Basin fields: Fidlar 2 

Church Buttes field : Fidlar 3 

Cretaceous strata : Love 5 

Lander area : Thompson, Raymond M. 

Newcastle sandstone, facies control:

Summerford 

Penetration chart for oil and gas

wells : Wyo. Geol. Assoc. 2 

Southeastern, penetration chart: Wyo.

Geol. Assoc. 3

Nautiloidea. See Cephalopoda. 

Nebraska.

Harlan County Dam, foundation : Happ

2

Nlobrara River, sediment transportation : Serr

Soils, lateri'tic, Cretaceous : Thorp 1 

Economic geology.

Natural gas, Julesburg Basin : McCanne 

Petroleum, Julesburg Basin : McCanne 

Geologic maps.

Elkhorn River Valley, glacial geology :

Frankforter 

Mineralogy.

Quartz: Mitchell, R. S. 

Physical geology.

Western,, Tertiary structures: Cook, H.

J. 2 

Physiographic geology.

Elkhorn River Valley, glacial geology:

Frankforter 

Nepheline, transformation to carnegieite:

Washken

Nepheline syenite, Greenland : B0gvad 

Nevada.

Boulder Canyon area, engineering geology : U. S. Bur. Reclamation 

Economic geology.

Comstock mining district: Stoddard 

Gold, Lyon County: Stoddard

Storey County : Stoddard 

Lead-zinc, Pioche district: Young 

Manganese, Esmeralda County : Benson,

W. T. 

Mineral deposits, Boulder Canyon area :

U. S. Bur. Reclamation 

Petroleum, potential: Dudley 

Silver, Lyon County : Stoddard ,

Storey County: Stoddard 

Geologic maps.

Boulder Canyon area: U. S. Bur. Reclamation

Panaca area, Meadow Valley : Phoenix 

Pioche district: Young 

Ground water.

F^sh Lake Valley: Eakin 1

General: Robinson, T. W.

Las Vegas area : Maxey

Meadow Valley Wash area: Phoenix

980682° 52- -28
350 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Nevada Continued

Ground water Continued

Steamboat Springs: White, D. B. 2 

Whisky Flat area: Eakin 2 

Historical geology.

Meadow Valley Wash area: Phoenix 

Pogonip-Eureka sequence, Ordovician:

Hintze 

Truckee formation, Pliocene: Macdonald, J. R. 1 

Mineralogy.

Opal, Virgin Valley : Hodson 

Paleontology. 

Mollusks, Truckee formation, Pliocene:

Yen 

Truckee formation fauna, Pliocene age:

Macdonald, J. R. 1 

Physical geology.

Lake Mead, silting studies : Nichols 

Earthquakes: Romney 2, 3; Tocher 1, 2 

Mina earthquake, fault direction:

Thomas, R. P. 

Thrusting, northeastern : Wheeler, H. E.

2 

New Brunswick.

Aeromagnetic map, Pointe Verte area:

Canada G. S. 21 

Cambrian : Hutchinson, R. D. 

St. Stephen nickeliferous norite : Dunham 2 

New England.

Granites, composition variation : Chayes

4

Magmntic origin : Chayes 2 

 New Hampshire.

Economic geology.

Clays: Chapman, D. H. 

Feldspar: Olson, J. C.

Foundry sands: Meyers

Pegmatites: Olson, J. C.

Geologic maps.

Crawford Notch quadrangle, eastern, 

sketch map: Henderson, D. M. 2

Lovewell Mtn. quadrangle: Heald, M. T,

1, 2

Surflcial geology: N. H. State Plan. Dev. 

Comm.

Mt. Pawtuckaway quadrangle : Freedman 1, 2

Historical geology.

Lovewell Mtn. quadrangle : Heaia, M. T. 

1,2

Mt. Pawtuckaway quadrangle: Freedman i, 2

Petrology.

X,ittleton formation, Devonian, Cra-wford Notch -quadrangle : Henderson,

D. M. 2

Lovewell Mountain quadrangle : Heald,

M. T. 2

Metamorphosed mafic dikes, Woodsville 

quadrangle: Billings 2

Mt. Pawtuckaway quadrangle: Freedman 2

Quartz veins in schist, origin: Chapman, C. A. 2

New Jersey.

Economic geology.

Iron, Dover district, magnetite deposits : Sims

Zinc, Franklin-Sterling area : Pinger 

Historical geology.

Cretaceous strata: Spangler 1 

Tertiary strata: Spangler 1 

Mineralogy.

Carnelian, South Stirling: Zodac 2 

Franklin Furnace quadrangle, natrolite,

andradite and allanite: Milton 1 

Paleontology.

Conularid, Esopus formation, Devonian :

Herpers 1 

Esopus formation, fauna, Devonian:

Herpers 2

Foraminifera: McLean 2 

Petrology.

Palisades diabase: Fuller, R. E. 2 

New Mexico.

Aeromagnetic map, De Baca County:

U. S. G. S. 41 

Aeromagnetic map, Guadalupe County :

U. S. G. S. 41, 42 

Aeromagnetic map, San Miguel County :

U. S. G. tS. 42 

Guidebook, San Juan Basin: N. Mex.

Geol. Soc. 

Society of Vertebrate Paleontology,

field conference : Colbert 1 

Meteorite, near Malaga: Wilson, B. H. 

San Juan Basin : Kelley 1

Geophysical work : Dobyns 

Economic geology.

Coal: Read 2, 3 

Reserves: Averltt 2

Copper, Santa Rita area : Kerr, P. F. 2 

Iron, oSlltlc ores, origin: Kelley 4

Lead, Houston-Thomas prospect, gravity

investigations : Barnes, V. ID. 1 

Royal John deposit: Souie

Santa Rita area, trace-element 

studies: Graf 2

Natural gas : Hartley 2

San Juan Basin: Barnes, F. C.

Cretaceous rocks: Silver 2 

- Petroleum : Hartley 2

San Juan Basin: Barnes, F. C.

Zinc, Central mining district: Lasky, 

s. G. 1

Houston-Thomas prospect, gravity investigations: Barnes, V. E. 1 

Royal John deposit: Soule*.

Santa trace-element

studies: Graf 2

Cf-eoloff-to tnctf>9.

Central mining district: Lasky, s. G. i

Harding pegmatite area: Montgomery

Houston-Thomas lead-zinc prospect:

Barnes, Y, E. i 

Index: Boardman 6

Northern area: Colbert 1

Rio Grande watershed, sketch map:

Griswold

San Juan Basin : Silver 1 

Santa Rita copper mine : Kerr, P. F. 2
INDEX 351

New Mexico Continued 

Ground water.

Rio Grnnde watershed : Griswold 

Historical geology.

Capitan reef, Permian : Adams, J. B. 

Chama River Valley, Mesozoic: Colbert

2 

Clovis-Portales area, Pleistocene:

Sellards

Clovis sites, age: Antevs 2 

Columnar sections: Bradish 1 

Jurassic: Hoover 

Northern area: Northrop 

Ochoa series, Permian : Donegan 

Pennsylvanian strata, correlation : Brill 

Permian facies: Wheeler, R. R. 4 

Rio Grancle Depression, upper Tertiary :

Simpson 1 

San Juan Basin : Beaumont

Cretaceous : Colbert 2 ; Silver 2 ; TJmbach

Pennsylvanian: Bradish 2 

Permian : Read 1 

Prc-Cambrian: Kelley 2 

Tertiary : Simpson 1 

Triassic: Wengerd 1 

Wootlford shale, Devonian: Bllison,

S. P. 2 

Mineralogy.

Eucolite: Clabaugh 3

Eudialyte: Clabaugh 3

Meteorite, near Albuquerque: Beck,

C. W. 1 

Tantalum in the Harding pegmatite:

Montgomery 

Paleontology.

Abo formation fauna, Permian : Romer 1 

Chama River Valley, Chinle fauna,

Triassic: Colbert 2 

Ochoa series, Permian : Donegan 

Pollen analysis: Sears 

Primates, San Juan Basin, Paleocene:

Wilson, R. W.

San Juan Basin, Cretaceous: Colbert 2 

Woodford shale, Devonian: Bllison,

S. P. 2 

Petrology.

Eudialyte-bearing dikes, Otero County :

Clabaugh 3 

Hydrothermal alteration, Santa Rita

area: Kerr, P. F. 2 

Laughlin Peak, dacite : Stobbe 

Tantalum in the Harding pegmatite:

Montgomery 

Physical geology.

Folding, Permian : Wheeler, R. R. 4 

San Juan Basin, structure: Kelley 3 

Physiographic geology.

Depressions, southern High Plains:

Judson 

New York.

Bibliography, Long Island, geology and

ground' water : Brashears 

Brooklyn-Battery tunnel: Fluhr 2 

Economic'geology.

Iron, Clinton County, magnetite deposits : Postel 2

New York Continued

Economic geology Continued

Petroleum, Allegany field: Harding,

R. W.

Cambro-Ordovician : Swartz 

Central: Willard 4

Wollastonite, Willsboro deposit: Ladoo 

Geologic maps.

Adirondack garnet areas : Levin 1 

Bear Mtn.: Lowe 

Hanover shale, Devonian : Pepper 

Montgomery County : Jeffords 

Rensselaer County: Cushman 

Wiscoy sandstone, Devonian : Pepper 

'Ground water.

Long Island : Suter, R. 

Montgomery County: Jeffords 

Rensselaer County: Cushman 

Historical geology.

Black River Valley, Ordovician: Chenoweth

Cambro-Ordovician, subsurface: Swartz 

Central, Paleozoic: Willard 4 

Chazyan : Oxley 

Chenango County well, section: Donnerstag 

Grenville Series, Adirondack Mts.:

Bngel

Hanover shale, Devonian :. Pepper 

Hudson Valley, Cambro-Ordovician:

Flower 3

Long Island : Suter, R. 

' Cretaceous: Perlmutter

Geologic history: de Laguna 1 

Pleistocene: Perlmutter 

Well log correlation : de Laguna 2 

Montgomery County: Jeffords 

Rensselaer County : Cushman . Richburg sand, Devonian, correlation:

Harding, R. W.

Wiscoy sandstone, Devonian : Pepper 

Mineralogy.

Brooklyn-Battery tunnel: Zodac 1 

Clinton Iron ores, origin, experimental

work: Castano.

Leucoxene, Lake Sanford titanium deposit : Wheeler, B. P. 

Staten Island, sands: Bllison, L. A. 

Paleontology.

Conularid, Silurian: Howell, B. F. 1 

Fish, arthrodire, Devonian : Denlson 

Gilboaphyton, classification : Krfiusel 

Ludlowville formation, fauna: Fisher,

D. W. 

Plant stems, Devonian, Cayuga Lake

area: Banks, H. P. 

Sponge, Devonian: Richardson, B. S. 

Petrology. 

Adirondack garnet deposits, origin:

Levin 1

Barton garnet deposit, origin: Levin 1 

Delaware aqueduct system, geological

features: Fluhr 1 

Garnet, hornblende rims, Adirondack

Mts.: Levin 8 

Grenville Series, Adirondack Mte.:

Engel
352 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

New York Continued 

Petrology Continued

Magnetite deposits, Clinton County:

Postel 2

St. Lawrence County : Leonard, B. F. 

Peridotite intrusion, Ithaca area:

Broughton

Pyroxene and garnet related to Adirondack anorthosite, contact zones: 

Buddington

Storm King granite, Bear Mtn.: Lowe 

Physical geology.

Finger Lakes, beach gravel: Taber 2 

Hudson Valley, Paleozoic faulting:

Flower 3 

Physiographic geology.

Adirondack Mts., erosion surfaces:

Crowl

Fire Island, beach drifting: Rosalsky 

Newfoundland. 

Economic geology.

Bonavista area: Christie 

Geologic maps.

Bonavista area: Christie 

Fogo Island area : Baird, D. M. 

Little Rattling Brook area : Hriskevitch 

Torbay area : Rose, B. R. 

Historical geology.

Bonavista area: Christie

Cambrian pre-Cambrian boundary,

eastern : Walthier 

Fogo island area: Baird, D. M. 

Little Rattling Brook area : Hriskevitch 

Petrology.

Fogo Island area: Baird, D. M. 

Little Rattling Brook area: Hriskevitch 

Physiographic geology.

Glaciation, Bonavista area : Christie 

Nickel.

Dominican Republic, Maimfin-HatlllO

district :0 Koschmann 1

Manitoba, Lynn Lake area: Allan 1

Northwest Territories, Rankln Inlet

deposit, mineragraphy : Pelzer

Ontario: Thomson 3

Surtb.ury : Internat. Nickel Co.

Washington, Blewett deposit: Lamey

Mackinaw mine : Milton 2 

Nodules.

California, foramlniferal casts: Graham, 

j. j. i

Texas, algal balls : Johnson, J. H.

Nomenclature.

Alberta, Edmonton area, Devonian : Imperial oil, Lta.

Brachiopoda, stroptieodontid, new genera : Williams, A.

Brittsoceras: Miller, A. K. 4

Cephalopoda, nautiloid, new genus :

Miller, A.. K. 6

CryStallOgraphic: Peacock 3 

Oyrtodonta, new species, Kentucky" .'

Conkin 1 

Cystoidea, Ordovlcian, new genera:

Bassler 1 

Echinodermata, new genera and species :

Sanchez Rolg 1

Nomenclature Continued

Elasmosaurus morgani, new species:

Welles

Favosites proximatus: Stumm 2 

Fearn Springs formation, Mississippi : Mellen

Fenestella deissi, new name : Ellas 4 

Foraminifera, Cretaceous, Texas : Frizzell 1

Endothyroid, new genus : Zeller 

Eponides: Hofker 

New forms, 1949: Thalmann 

New species, Cretaceous : Loeblich 3

Jurassic: Lalicker 

Genera, species : -Jeletzky 3 

Generic names, orthography: Wright,

C. W. 1

Geologist vs. engineer : Suter, H. H. 

Geotectonic elements: Cady, W. M. 2 

Helena dolomite, Montana : Knopf 2 

Homonyms, synonymous: Frizzell 1 

International Commission, decisions of

Paris meeting, 1948 : Sinclair 

Iowa, microflora, new genus and species,

Cretaceous: Schemel 2 

Monocyathus vs. Archaeolynthus: Okulitch 3 

Mt. Simon sandstone members, Illinois :

Templeton

Nautiloidea: Flower 2 

Ostracoda, Devonian, Ohio, new species :

Stewart, G. A. 

Paleontologic classification : Wright, C.

W. 2

Paleontologic, problems : Ellas 2 

Pediments: Maxson 3 

Pediplains : Maxson 3 

Pelecypoda, descriptive terminology:

Dodge, H. 

New genera: La Rocque

Pennsylvanian, Missouri : Greene

Planulina palmerana: Garrett, J. B.

Pliocene floras: Axelrod 7

PUohippus, new species, Mexico : Lance

PUiralicyathllS for Polycyathus: Okulitch 4

Porlfera : OUulitch 2

Pulknia duplicata, types: stainfortn i

Radioactive minerals, glossary : Prondel, 

J. W.

Reptilia, dinosaur, new genus: Stovail 2

Sagenite : Staples 2

SCaphOpOfla, Dentaltum, new species :

Alencaster-Ibarra 1

Sedimentary rocks : Tloclsers 2

Sedimentology: Goldman

South Dakota, Pierre shale, CretaceOUS ' 

Crandeii

Species in evolutionary transition, generic designation : Haas 2 

StereotOCCras, new genus : Flower l

Stratigraphic : MoOrfi, R. C. 4 ', Wh^lfiP, 

H. E, 1

Appalachian: Woodward -2 

Tertiary, Gulf and Atlantic Coastal 

Plain : Murray, G. E. 1
INDEX 353

Nomenclature Continued'

Trilobita, geographic range: Shaw, A.

B. 1

Ordovician, genotypes : Whittington 1 

Ptychopleurites zone, Cambrian : Wilson, J. L. 2

Trinucleus Murchison : Shaw, A. B. 3 

Vacuocyathus: Okulitch 1 

Varietal names, gender: Bellen ; Stainforth 2 

Virginia, Jonesville district, Ordovician

formations : Miller, R. L. 1 

Zone, stratigraphic concept: Teichert 

North America.

Bibliography, 1948: Thorn 

Historical geology.

Cenozoic, correlation problems: Stirton 1 

Time correlation, with Eurasia:

Stout 2 

Miocene-Pliocene boundary: Cook, H.

J. 1 

Pliocene-Pleistocene boundary, Great

Plains region: Stout 1 

Paleontology.

Anthozoa, Tabulata, Devonian, types:

Stumm 1

Bison, range : Savage, D. E. 

Corals, Paleozoic: Bassler 2

Tryplasma, Silurian occurrence:

Stumm 4

Desert vegetation, development, Tertiary : Axelrod 6 

Fossil Sequoia: Chancy 

Madro-Tertiary flora: Axelrod 1 

Mammalian migration : Cook, H. J. 1 

Man, fossil: Wormington 

Physical geology.

Earthquakes: Gutenberg 2 

Physiographic geology.

Atlantic terrace, formation : Kuenen 4 

Glaciation, Quaternary : Autevs 1 

North Carolina.

Coastal Plain, geophysical data : Skeels 

Tennessee Valley engineering projects,

geology : Tenn. Valley Authority 

Economic geology.

Coal, reserves : Averitt 2

Hot Springs area, mineral resources:

Oriel

Mineral resources: Murdock 

Natural gas : Berry, E. W. 1 

Petroleum : Berry, E. W. 1 

Sillimanite: Teague 

Tungsten, Cabarrus County: Jones,

J. O.

Harnme district: Espenshade 

Vermiculite : Hunter, C. E. 

Geologic maps.

Broad River Basin : Mundorff 1 

Catawba River basin : Mundorff 1 

Coastal Plain, geophysical maps : Skeels 

. French Broad River Basin : Legrand 

Hot Springs area : Oriel 

Index-: Boardman 7

North Carolina Continued

Ground water.

Broad River Basin : Mundorff 1 

Catawba River Basin : Mundorff 1 

Flood-plain deposits : Mundorff 2 

French Broad River Basin : Legrand

Historical geology.

Coastal Plain : Richards, H. G. 3 

Cretaceous, subsurface strata : Spangler

2 

Great Smoky Mtn. region : King, P. B. 1,

2

Hot Springs area, Cambrian : Oriel

Tertiary, subsurface strata: Spangler 2 

Mineralogy.

Phosphate-allophane: Jaffe 1

Quartz with inclusions : Taber 1

Rubies : Smith, M. 

Paleontology.

Coastal Plain formations, faunal lists: 

Richards, H. G. 3

Foraininifera : McLean 1

Petrified wood, Cretaceous : Berry, E. W.

3 

Petrology.

Bryson City- area, granitization : Cameron, E. N. 2

Caldwell County: Goedicke 

Conglomerate, Carolina slates: Berry,

E. W. 2

Dunite ring-dike, near Webster : Gwinn 

Pegmatites, sulflde replacements : Heinrich, B. W. 3 

Rhodolite garnet gneiss, Masons Mtn.:

Heinrich, E. W. 6 

Staurolite pegmatite, Masons Mtn. :

Heinrich, E. W. 6 

Physical geology.

Carolina bays, origin : Melton 1 

Coastal Plain: Skeels

Structure: Richards, H. G. 3 

Hot Springs window, structure : Oriel 

Physiographic geology.

Blue Ridge Front, fault scarp : White,

W. A.

Carolina Bays, origin : Prouty 

Sediment study : Frey 

Tidal eddy traces: Cooke, C. W. 

North 'Dakota.

Economic geology.

Lignite, Standing Rock Indian Reservation : Denson, N. M. 

Sulfur content: Burr; Magnusson

Western : Roe

Salt beds, origin : Grossman 

Sulfur, in lignite : Burr ; Magnusson 

Geologic maps.

Heart River Valley : Tychsen 

Kindred area : Dennis 2 

Standing Rock Indian Reservation : Denson, N. M.

Wyndmere area : Dennis 1 

Ground ivater.

Heart River Valley : Tychsen 

Kindred area : Dennis 2 

Portland area : Dennis 3
354 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

North Dakota Continued 

Ground water Continued 

Wyndinere area : Dennis 1 

Zeeland area: Laird 

Historical geology.

Standing Rock Indian Reservation:

Denson, N. M. 

Paleontology.

Foraminifera, Jurassic : Loeblich 2 

Petrology.

Till, limestone-dolomite content: Howard, A. D. 2 

Physical geology.

Fort Union formation, deformation:

, Benson, W. E. B.; Townsend 

Physiographic geology. 

Saline basins: Grossman 

Zeeland area, glacial geology : Laird 

Northwest Territories. 

Economic geology. 

Gold, Discovery Yellowknife mine:

Byrne, N. W. 

Giauque Lake area: Qulnn, H. A.;

Tremblay 2 

Nickel-copper deposit, Rankin Inlet:

Pelzer 

Petroleum, Norman Wells pool: McKinnon

Uranium, Eldorado mine: James, W. F. 

Geologic maps.

Aylmer Lake area : Lord 

Christie Bay area : Brown, I. C. 2 

Fort Resolution area : Brown, I. C. 3 

Ghost Lake area: Wright, G. M. 

Giauque Lake area : Quinn, H. A.;

Tremblay 2

Matthews Lake area: Folinsbee 1 

Reliance area : Brown, I. C. 1 

Walmsley Lake area: Folinsbee 2 

Yellowknife area : Henderson, J. F. 1, 2 

Yellowknife greenstone belt: Henderson

J. F. 3 

Historical geology.

Christie Bay area : Brown, I. C. 2 

Fort Resolution area : Brown, i. c. 3

Giauque Lajke area: Quinn, H. A.;

Tremblay 2

Imperial River canyon, paieo^oio : iJlXvidon

Pine Point ivreu., Mia<iio Devonian 

Campbell, N. 

Reliance area : Brown, I. C. 1

Mineralogy.

Gem localities, Baffin Island: Field,

r>. s. M. 3 

Mineral Occurrences : Thompson, Robert

M. 1

Petrology. 

Aylmer Lake area, pre-Cambrian: Lord

Campbell she,ar zone, movement, presSUl'6 Shadows : Fali-bairn 2

Ghost Lake area : Wright, G. M. 

Giauque Lake area : Quinn, H. A. 

Matthews Lake area : Folinsbee 1 

Rankin Inlet nickel-copper deposit: 

Pelzer

Northwest Territories Continued 

Petrology Continued

Walmsley Lake area, pre-Cambrlan:

Folinsbee 2 

Physical geology.

Yellowknife greenstone belt, structure:

Henderson, J. F. 3 

Nova Scotia.

Economic geology.

Coal, Sydney field, reserves: MacKay 2 

Copper, Coxheath mine : Cole 

Dolomite, Upper Musquodoboit Valley :

Cameroon, J. R. 1

New Rosa area: Cameron, J. R. 2 

Sandstone, Hantsport area: Goudge 

Geologic maps.

Mulgrave area : Canada G. S. 18 

Historical geology.

Horton sediments, Mississippian:

Decker, R. W. 

Physical geology.

Halifax area, faulting : Cameron, H. L. 1 

Physiographic geology.

Yarmouth-Pubnico area, glacial geology :

Cameron, H. L. 2

Ocean basins, origin: Fisher, J. E. 3 

Oceans. See also Submarine geology.

Pacific, tsunami, Hawaii, April 1, 1946 :

Shepard 1

Sea-water, geologic history : Rubey 2 

Ohio.

Geological Survey, duties : Melvin 

Highway construction, engineering geology : Marshall

Limestone density, gravimeter measurements : Hammer 1 

Stream flow, relation to geology : Bernhagen 

Switzerland Township, Monroe Connty :

Arkle 

Economic geology.

Petroleum, Blue Rock-Salt Creek pool

area : Swain 

Geologic maps.

Greene County, bedrock geology : Norrls 

Surflcial geology : Goiathwait 1

Ground water.

General, 1948: Kaser 

Greene County -. Morris

Glacial deposits: Goldthwalt 1

ff-fotor-icaZ {rcoToffi/-

BlUC ROCk-Salt Creek pool area, Medina

sand: Swain

Cleveland area : Bacon

Greene County: Norns . Mississippian. flow markings : Rich 2 

Paleozoic strata : Harper, A.. R.

Sharon conglomerate, Pennsyivaman :

Fuller, J. 0. 1, 2

Mineralogy, 

zinc suifide polymorphs: Frondel, C. !;

Seaman

Paleontology.

Flora, upper Freeport coal, Athens 

County: Abbott 2

Ostracodes, bone beds, Devonian : Stewart, G. A.
INDEX 355

Ohio Continued 

Physical geology.

Earthflow and strip mining: Savage,

C. N. 

Mineral City area, slumping, Pennsylvanian : Gray, H. H. 

Physiographic geology.

Cleveland area, glacial deposits : Bagley 

Glaciation : Harper, A. R. 

Greene County: Norris

Glacial deposits : Goldthwait 1 

Wisconsin deglaciation : Goldthwait 3 

Wisconsin glacial drift, relation to soil

boundaries : White, G. W. 2 

Oil. See Petroleum.

Oil and gas fields. (Alphabetically by name.) 

Alexander oil field, Texas : Byram 

Allegany oil field, New York: Harding,

R. W. 

Ardmore basin, Oklahoma, Paleozoic oil

fields : Peterson, B. T. 

Ashley Valley oil field, Utah : Peterson,

V. B. '

Aspen oil field, Wyoming: Hauptman 

Bateman Ranch oil field, Texas: Walker, R. Y. 1 

Baxter Basin gas fields, Wyoming:

Fidlar 2 

Beddo oil and gas field, Texas: FitzGerald

Blackfoot oil field, Texas : Branson 

Bradford oil field, Pennsylvania: Harding, R. W.

Bronte oil field, Texas : Brown, R. 

Brookhaven oil field, Mississippi:

Womack

Cairo oil field, Arkansas : Goebel 

Calder oil field, California : Carter, F. B. 

Carthage gas field, Texas: Wilhelm 

Church Buttes gas field, Wyoming:

Fidlar 3

Clay Basin gas field, Utah : Fidlar 4 

Diamond M reef oil-field, Texas : Klinger 

Douglas Creek gas field, Colorado : Gow 

East Pauls Valley pool, Oklahoma:

Frost, V. L. 

Elk City oil field, Oklahoma: Beams;

Kornfeld; Wilgus

Eola oil field, Oklahoma: Swesnik 2 

Golden Trend area, Oklahoma: Swesnik 1

Good oil field, Texas : Rodan 

Helm oil field, California : Frame 2 

Hopper oil field, Pennsylvania : Ingham 

Howard oil field, Texas : Perini 

Humphrey-Gray oil pool, Texas : Martin,

B. H.

Island pool, Kentucky : Jacobsen 

Ixhuatlan oil field, Mexico: Contreras 

Jimburt oil pool, Texas : Tompkins 

Joseph Lake oil field, Alberta: Hunt,

C. W. 2

Jud oil pool, Texas : Bassett, J. S. 

Kelley-Snyder oil field, Texas: Van

Siclen

Kern Bluff oil .field, California : Corwin 

Kirby Hill gas field, California : Frame 1

Oil and gas fields Continued

LaBarge oil field, Wyoming : Christensen 

Leduc oil field, Alberta: Hopkins, O. B.

1; Waring

Lloydminster oil field, Canada : Coons 

McCurdy oil field, Pennsylvania: Ingham

McDonald oil field, Pennsylvania : Ingham

Meadows oil field', Texas : Shepherd 

Millican oil field, Texas : Bonifleld 

Moloacdn oil field, Mexico : Contreras 

Montalvo oil field. California : Moir 

Moon Run-Crafton oil field, Pennsylvania : Ingham 

Moralillo oil field, Mexico: Castill6n

B.; Suarez C.

Norman Wells pool, Northwest Territories : McKinnon. 

North Pauls Valley oil field, Oklahoma:

Northrip 

North Winters oil field, Texas: Wasselhoeft

Pardue oil field, Texas : Vickers 

Pegasus oil field, Texas : Anonymous 6 ;

Shepherd 

Placerita oil field, California: Barton;

Oakeshott 1

Poza Rica oil field, Mexico : Luna 

Rangely oil field, Colorado: Patton, 

\ H. L.

Redwater oil field, Alberta: Hancock 

Reynosa oil field, Mexico : Yzaguirre 

Ringwood oil field, Oklahoma : Kornfeld 

Roby oil pool, Texas : Barnes, A. E. 

Roosevelt oil field, Utah : Miller, J. R. 

Ross. Ranch oil field, Texas: Walker,

R. Y. 2

Rotan oil field, Texas: Perini 

Round Top oil field, Texas : Day 

San Ardo oil field, California : Baldwin,

T. A. ; Barger 

San Miguelito oil field, California : McClellan 

Sholem Alechem oil field, Oklahoma:

Billingsley 

South Belridge oil field, California:

Ritzius

South Haskell oil field, Texas : Edwards 

Southeast Newcastle oil field, Oklahoma : Spradlin 

Spring Valley oil field, Wyoming:

Hauptman 

Stettler oil field, Alberta: Lockwood,

R. P. 

Sulphur Creek oil field, Wyoming:

Hauptman 

Susan Peak oil field, Texas: Graham,

D. W.

Todd Deep oil field, Texas: Imbt, R. F. 

Turner Valley oil field, Alberta : Gallup 

Utica oil field, Kentucky : Bruce, C. H. 

Vealmoor oil field, Texas: Taylor, S. J. 

Venice oil field, Pennsylvania : Ingham 

Weber oil pool, Oklahoma: Johnston, 

K. H.
Oil and gas fields Continued

Weinert oil field, Texas : Kerfoot 

West Edmond field, Oklahoma : Milne,

W. P. 

Whitemud oil field, Alberta : Hunt,

C. W. 1

Winters oil pool, Texas : Tompkins 

Oil shale. See also Bituminous rocks ; Petroleum. 

Colorado, Pi'ceance Creek Basin : Duncan 

Petroleum source beds, investigations :.

Ferris 

Oklahoma.

Fort Cobb anticline, seismic survey :

Campbell, F. F. 2 

Guidebook, Tulsa Geological Society

field trips : Tulsa Geol. Soc. 

Radioactivity logging, Seminole area :

McGaha 2 

Sedimentary rocks, seismic velocities :

Oliphant 

Economic geology.

Coal, Le Flore County : Knechtel 1 

Fort Cobb anticline, seismic survey :

Campbell, F. F. 2 

Industrial minerals : Dott 3

Arbuckle Mts. : Ham 2 

Lead, Picher field, structure and mineralization : Lyden 1, 2 

Natural gas, Le Flore County : Knechtel 1

Petroleum, Anadarko Basin : Kornfeld 

Ardmore basin : Peterson, B. T. 

East Pauls' Valley pool : Frost, V. L. 

Elk City field : Beams ; Kornfeld ;

Wilgus 

Bola field : Swesnik 2

Golden Trend area : Swesnik 1

Relation to structure : Wheeler,

R. R. 3

Llndsay area : SwesniK 3

North Pauls Yalley fleia ; Nortunp 

Northwestern area : Maddox, G. C.

RIngwood field : Kornfeld

Sholem Alechem field : Billingsley

Southeast Newcastle field : Spradlln

Southwest : Caswell

Weber pool : Johnston, K. H.

West Edmond field, prediction of production : Milne, W. P. 

Tri-State district, biogeochemical investigations : Harbaugh

Zinc, Plchej? field, structure and mlneralization : Lyden 1, 2

Oeolofftc maps.

Le Flore County : Knechtel 1

Ouachita Mts. : Okla. City Geol. Soc.

Progress report : Dott 4

Ground water.

Cherokee area : Schoff 1

Creek Basin : Davis, L. V. 1

Historical geology.

Anadarko Basin, subsurface, Pennsylvanian, Permian : Wheeler, R. R. 1 

Western, subsurface : Meholin

Oklahoma Continued

Historical geology Continued

Arbuckle limestone, Arbuckle anticline :

Ham 1

Ardmore basin : Peterson, E. T. 

Carboniferous, southwest: Caswell 

East Pauls Valley oil pool: Frost, V. L. 

Eola area, Paleozoic : Swesnik 2 

Golden Trend area, Ordovician-Permian : Swesnik 1 

Pennsylvanian : Turk 1 

Le Flore County: Knechtel 1 

McAlester-Arkansas Valley Basin:

Hendricks, T. A. 2 

Missouri-Virgil boundary : Oakes 

Northeastern, Pennsylvanian: Wright,

L. M.

North Pauls Valley oil field : Northrip 

Northwestern area, Paleozoic: Maddox,

G. C.

Ouachita Mts.: Okla. City Geol. Soc. 

Pennsylvanian paleogeography : Tomlinson, C. W. 1

Pond Creek Basin : Davis, L. V. 1 

Rush Springs sandstone, Permian:

Davis, L. V. 2

Sholem Alechem oil field : Billingsley 

Stanley shale, Carboniferous : Hass 

Strata, distribution : Dott 3 

Mineralogy.

Quartz crystals, Wichita Mts. : Polk 

Tourmaline, detrital: Lucns 1 

Zircon, detrital: Lucns 1 

Paleontology.

Conodonts, Stanley shale, Carboniferous : Hass

Crinoidea, Pennsylvanian: Strimple 2 

Dinosaur, Lower Cretaceous: Stovall 2 

Pleistocene mammals : Meade

Reptilia, Permian : Stovall 1

Petrology.

Gmnite, wichlta Mts.. pre-Cambrian:

McKinley

Pennsylvanian sandstone! LUCRS 2;

Scruton 

Physical geology.

Anadarko Basin, Paleozoic orogeny:

Wheeler, R. R. 5 

Eola area, structure : Swesnik 2 

Sand sorting, Canadian River : Tanner 2 

Physiographic, geology.

Flood plain, Deep Fork of North Canadian River : Harper, H. J.

Verden sandstone, origin: Evans,

O. E\ 3

Ollgocene. See Tertiary.

Olivlne, system, correlation of properties : 

Poldervaart

Ontario.

Aeromagnetic map, ArnprioT sheet:

Canada G. S. 1 

Bancroft sheet: Canada G. S. 2

Unnnockburn sheet : Canada G. S 3

Campbellford sheet; Canada G. S. 5

Carleton Place sheet: Canada G. S. 6 

Coe Hill sheet; Canada G. S. 8 

Kemptville sheet: Canada G. S. 12
INDEX 357

Ontario Continued

Aeromagnetic map Continued

Merrickville sheet: Canada G. S. 17 

Ottawa sheet: Canada G. S. 19 

Perth sheet: Canada G. S. 20 

Canadian Shield, gravity anomalies:

Garland 1 

Clare River syncline area, gravlmeter

survey: Fitzpatrlck 

Elzevir batholith, radioactivity : Slack 

Geothermal gradients: Misener 

Heat flow, Kirkland Lake: Leith, T. H. 

Lake Simcoe district, physiographic

map : Canada G. S. 15 

Radioactivity, pre-Cambrian rocks : Walter, J. P.

Round Lake batholith : Slack 

Seismic work, Poulter method: Hodgson, J. H. 1

University of Toronto, geophysical research : Marble 4 

Economic geology.

Asbestos: Hewitt, D. F. 2 

Copper: Thomson 3 

Corundum, Craigmont mine : Moyd 1 

Gold, Crow River area : Chisholm 5 

Geraldton-Beardmore area: Greer 

Kenogami Lake area : Thomson 1 

Kirkland Lake area: Perry, O. S.;

Savage, W. S. 

Lake Shore mine, Kirkland Lake area :

Charlewood 

Macassa mine, Kirkland Lake area:

Ward, W.

Porcupine area: Hogg 

Red Lake area: Chisholm 4 

Relation of deposits to intrusives:

Gross 

Sylvanite mine, Kirkland Lake area:

Macintosh 

Teck-Hughes mine, Kirkland Lake

area: Griflln, K. 

Teck Township: Thomson 1 

Toburn mine, Kirkland Lake area:

Ogryzlo 

Wright-Hargreaves mine, Kirkland

Lake area: Hopkins, H. 

Industrial minerals : Hewitt, D. F. 3 

Iron : Hurst 2

Iron Range rocks, origin : Tanton 2, 3 

Steeprock Lake area: Hicks, H. S. 

Kirkland Lake area: Hawley 1; Thomson 2

Lead: Thomson 3 

Mineralization, field tracing: Chisholm

3

Natural gas : Crozier ; Evans, C. S. 

Nickel: Internat. Nickel Co.; Thomson

3 

Nickel-cobalt-silver ores, Cobalt and

South Lorraine: Bastin 1 

Nonferrous metals: Thomson 4 

Nor-Penn gold mine, mineral field test:

Chisholm 1

Olden-Bedford area: Harding, W. D. 1 

O'Sullivan Lake area.: Moorhouse 2 

Petroleum: Evans, C. S.

Ontario Continued

Economic geology Continued

Pitchblende, Lake Superior, east shore:

 Nuffleld 

Radioactive mineral occurrences, Kenora

area: Chisholm 2 

Sault Ste. Marie area: Kesten 

 Silver: Reid

Temlskaming area: Reid 

Sudbury district, precious metals in

minerals, spectrographic determination : Hawley 4

Uranium, Camray deposit: James, W. F. 

Zinc: Thomson 3 

Geologic maps.

Beaverton area : Caley

Crow River area, sketch map: Chisholm

5

Echo Township: Armstrong, H. S. 

Fenelon Township, Pleistocene: Lee,

H. A.

General: Hurst 1 

Geraldton-Beardmore area, sketch map :

Greer 

Gullwing Lake-Sunstrum area : Harding,

W. D. 2 ; Ontario Dept. Mines 2 

Kenogami Lake area : Thomson 1 

Kirkland Lake area, sketch map : Snvage, W. S.

Kirkland Lake gold belt: Thomson 2 

Lake Simcoe district, Pleistocene glacial

deposits: Canada G. S. 14 

Mississagi road area, pre-Cambrian:

Harding, W. D. 3

Olden-Bedford area : Harding, W. D. 1 

Orillia-Brechin area: Caley 

Ossian Township, Timiskaming district:

Currle

O'Sullivan Lake area : Moorhouse 2 

Osway Township: Moorhouse 1; Ontario Dept. Mines 1 

Perth area: Dugas 

Porcupine area, sketch map : Hogg 

Red Lake area, sketch map: Chisholm 4 

Skead Township: Hewitt, D. F. 1 

Southwestern : Evans, C. S. 

Teck Township : Thomson 1 

Township 29, Range 14: Nuffleld 

Historical geology. 

Beaverton area: Caley 

Campbell Lake area : Satterly 2 

Columbus limestone, Devonian, near Ingersoll: Ehlers 2 

Echo Township : Armstrong, H. S. 

Fenelon Township, Pleistocene: Lee,

H. A.

General: Hurst 1 

Jaab Lake area : Satterly 1 

Kenogami Lake area : Thomson 1 

Orillia-Brechin area: Caley 

Osway Township : Moorhouse 1 

Perth area: Dugas

Pleistocene, Lake Simcoe district: Deane 

Sibley series, unconformity: McLaughlin, D. B. 2

Silurian, southwestern : .Evans, C. S. 

Skead Township : Hewitt, D. F. 1 

Teck Township : Thomson 1
358 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Ontario Continued 

Mineralogy.

Kirkland Lake ores: Hawley 1

Zircon, Renfrew County : Field, D. S. M.

1 

Paleontology.

Campbell Lake area: Satterly 2 

Jaab Lake area : Satterly 1 

Petrology.

Echo Township : Armstrong, H. S. 

Gullwing Lake-Sunstrum area, pre-Cambrian : Harding, W. D. 2 

Kirkland Lake area, gold : Thomson 2 

Mclntire mine, ore formation: Smith,

F. G. 

Mississagi road area, pre-Cambrian:

Harding, W. D. 3 

Nickel-cobalt-silver ores, Cobalt and

South Lorraine : Bastin 1 

Olden-Bedford area, pre-Cambrian:

Harding, W. D. 1 

Ossian Township, Timiskaming district:

Currie

O'Sullivan Lake area : Moorhouse 2 

Osway Township : Moorhouse 1 

Perth area : Dugas 

Radioactive deposits, Sault Ste. Marie

area: Kesten

Skead Township : Hewitt, D. F. 1 

Physical geology.

Perth area: Dugas 

Physiographic geology.

Lake Simcoe district, Pleistocene geology : Deane 

Oolites.

Illinois, Fredonia oOlite, Ste. Genevieve

formation : Graf 3 

Neda iron formation: Workman 1 

Opal. See Gems and gem materials. 

Ordovician. See also Paleontology, Or'dovician.

Arctic Archipelago, Devon Island :

Kurtz

Colorado, Front Range : Maher 1 

Kansas, Arbuckle limestone: Clair

Kentucky, Bluegrass region: Hamilton,

D. K.

Bourbon County : Hamilton, D. K.

Fayette County: Hamilton, D. K.

Jessamine County : Hamilton, D. K.

Scott County: Hamilton, D. K.

Mississippi Valley : Agnew 1

Galena-Decorah-Platteville sequence :

Agnew 2

Missouri, Plattln limestone : Larson 2

Diastems: Larson 1

Nevada, Pogonip-Bureka sequence:

Hlntze

New York, Black River Valley, Trenton:

Chenoweth 

Hudson Valley : Flower 3

Northeastern: Oxley 

Subsurface : Swartz

Newfoundland, Fogo Island area : Baird,

D. M. 

Oklahoma, Arbuckle anticline : Ham 1

Ordovician Continued

Ontario, Beaverton area : Caley 

Orillia-Brechin area : Caley 

Perth area : Dugas 

Pennsylvania, Carlisle area : Stose 1 

Eastern, Taconic sequence : Stose 2 

Evansville area, Jacksonburg formation : Gray, C.

Kempton area, Martinsburg formation : Moseley

Nittany arch, windows : Fox 

Subsurface : Swartz 

Quebec, Grondines area: Clark, T. H. 

Utah, Pogonip-Eureka sequence : Hintze 

Vermont, Canadian-Chazyan: Kay 

Castleton area : Fowler, P. 

Western: Oxley 

Ore deposits, origin. See Economic geology ;

Mineral deposits, origin. 

Oregon.

Port Orford meteorite: Pruett 

Economic geology.

Dikes, Cornucopia district: Frederickson 

Greenhorn Mts. area, mineralization and

structure: Alien, R. M. 1 

Iron: Zapffe

Petroleum, potential: Buddenhagen 

Geologic maps.

Umatilla County : Wagner, N. S. 

Ground water.

McNary Dam site, artesian horizon:

Thompson, T. F. 

Morrow County : Wagner, N. S. 

Umatilla County: Wagner, N. S. 

Historical geology.

John Day formation : Green, M. 

John Day region, Columbia River lavas : 

Thayer

Mineralogy.

Gems: Dake 1 

Ilsemannite : Staples 8

Mineral collecting: Dake 1

Quartz pseudbmorphs in petrified wood : 

Staples 1

Sagenite, near Trent t Staples 2

Sams Valley meteorite : Morley

Uranium Jn agate : Dake 2

Paleontology.

Cherry leaf, Oligocene : Brown, R. W. 5

Coos Bay, Tertiary fauna: James, E. L.

Foraminifera, Cape Blanco, Cenozolc:

Ban<Jy

Sea cow, Astoria, Miocene: Shotwell

Vertebrates, near Pendleton, Tertiary : 

Sargent

Petrology.

Coast Range, intruslves : Snavely

Dikes, Columbia River basalt: Waters

John Day River Valley, welded tuff:

Wilkinson

Physical geology.

Earthquakes, and engineering projects:

Smith, W. D. 

Physiographic geology.

Pluvial lake shore lines : Allison
INDEX 359

Orogeny.

Appalachian system, southeastern

United States: King, P. B. 3 

Colorado, Denver Mtn. area : Tweto 

Constriction theory : Malaise 

Contraction theory: Scheidegger 1;

Wilson, J. T. 4 

Earth crust: Bucher 2 

Geotectonic elements, evolution : Cady,

W. M. 2

Great Basin : Longwell 1 

Island arcs, contraction theory : Scheidegger 1 

Theory of distribution: Wilson, J.

T. 1

Mechanism, analysis: Jardetzky 

Montana, western, Tertiary : Pardee 

Mountain arcs, theory of distribution : Wilson, J. T. 1 

Oklahoma, Anadarko Basin: Wheeler,

R. R. 5

Origin : Fisher, J. E. 3 

Orogenetic belts, pattern and ' cause : Wilson, J. T. 3

Rhythm and synchronism: Umbgrove 

United States, Basin and Range province : Longwell

Cordilleran, Tertiary : Wisser 2 

Utah, Uinta Mts., north flank: Curtis 

West Indies : Weyl, R. 2 

Wyoming, Snake River region: Eardley

2 

Orthopyroxene.

System, correlation of properties: Poldervaart 

Ostracoda.

Alabama, Gosport formation, Eocene:

Blake, D. B. 

Comparison of limestone and shale

forms: Sohn 3

Cuba, Cretaceous, Tertiary: Bold 

Growth stages: Sohn 2 

Iowa, faunal zones, Ordovician:

Thomas, L. A. 2 

Mexico : Te"llez-Gir6n 

Ohio, bone beds, Devonian: Stewart,

G. A.

Paleozoic, hingements : Levinson 1 

Sectioning technique: Levinson 2 

Texas, Glass Mts., Permian:' Sohn 1 

Helms formation, Mlssissippian:

Sohn 3

Overthrusts. See Thrusts and thrusting. 

Pacific Basin, continental drift, Tertiary:

Durham 3 

Pacific Coast, Cenozoic marine climates:

Durham 2

Paleobotany. See also Algae; Paleontology. 

Algae, microscopic study: Ousdal 

Arkansas, Fort Smith district, fossil

plant list: Hendricks, T. A. 1 

Plant remains in bauxite : Dreyer 

British Columbia, pollen analyses: Hansen

Paleobotany Continued

California, Anaverde flora, Pliocene:

Axelrod 4 

Mount Eden flora, Pliocene: Axelrod

3

Napa region, Pliocene florule: Axelrod 2

Piru Gorge flora, Pliocene: Axelrod 5 

Callixylon, Mississippian : Hoskins 

Carbonized compressions, transfer

method: Abbott 1 

Colorado, southwestern, Cretaceous:

Brown, R. W. 3 

Conifers, Upper Carboniferous, Lower

Permian : Florin

Desert vegetation, development, Tertiary : Axelrod 6 

Dicotyledons, oldest: Canright 

Fern fructifications, Carboniferous:

Mamay 1 

Fern spores, morphology and taxonomy :

Reed, C. F.

Fossil Sequoia: Chancy 

Gilboaphyton, classification: Krilusel 

Illinois, Botryopteris, Pennsylvanian :

Mamay 2

Mazon Creek, fossil plant collections 

at University of Illinois: Stewart, 

W. N. 1

McLeansboro formation, Medullosa, 

Pennsylvanian : Stewart, W. N. 2 

Seed, Pennsylvanian: Neely 

Spores, Pennsylvanian : Kosanke 1 

Indiana, Merrillville bog, pollen profile:

Guennel

Pinhook bog, pollen profile: Guennel 

Reed bog, pollen profile: Griflln, C. D. 

Sphenopsid cone, Pennsylvanian:

Baxter 

Iowa, Charophyta, Pennsylvanian:

Thomas, L. A. 1 

Cordaitean leaf, Pennsylvanian : Reed,

F. D.

Microflora, Cretaceous: Schemel 2 

Labrador, pollen diagrams : Wenner 

Lepidodendroid embryos : Darrah 2 

Lepidodendropsia: Darrah 1 

Madro-Tertiary flora : Axelrod 1 

Marine ecology : Brown, R. W. 2 

Massachusetts, peat, Quaternary: Benninghoff 2

Mexico, catalog: Maldonado-Koerdell 4 

Equisetal, Cretaceous: MaldonadoKoerdell 2 

Plant materials, age determinations :

De Terra

Pollen analysis: Sears 

Michigan, spores, Pennsylvanian: Arnold 

Montana, Ruby River area, Tertiary:

Zuidema

New Mexico, pollen analysis: Sears 

New York, Cayuga Lake area, plant

stems, Devonian : Banks, H. P. 

North America, fossil Sequoia: Chaney
360 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Paleobotany Continued

North Carolina, petrified wood, Cretaceous : Berry, B. W. 3 

Ohio, Athens County, upper Freeport

coal, Pennsylvanian : Abbott 2 

Oregon, Sweet Home, cherry leaf, Oligocene: Brown, R. W. 5 

Pennsylvania, Kittanning coal, mega-

 spores, Pennsylvanian : Ferm 

Plant identification, progress : Just 

Plant microfossils,, Paleozoic, stratigraphic use : Schopf

Pliocene floras, nomenclatural changes: 

. Axelrod 7

PsaronU, Eastern Interior Basin:

Kosanke 2 

Small-spore studies, for correlation:

Schemel 3

Spores, classification : Arnold 

Coal beds, Illinois : Kosanke 3 

Pennsylvanian, new genera : Kosanke

1

Utah, Lucerne Valley, plant spores, Carboniferous : Schemel 1 

Vaseyanthus, vine, evolution : Gentry 

Vermont, Brandon lignite, Tertiary:

Barghoorn 

Wyoming, Yellowstone National Park,

Tertiary : Beyer 

Paleocene. See Tertiary. 

Paleoclimatology. See also Geologic history. 

Connecticut, Triassic: Krynine 1 

Cretaceous seas, temperature : Urey 1 

Pacific Coast, Cenozoic : Durham 2

Texas, Hudspeth County, Cretaceous:

Albritton

Paleoecology.

Bryozoa, mid-Continent, Paleozoic:

Ellas 1 .

Determination of physical characters:

Emiliani

Gulf of Mexico, Pleistocene : Deevey

Illinois, Pennsylvanian, coal beds: Kosanke 3

Marine plants : Brown, R. W. 2

MexiCO, Gulf Of California, Pliocene,

Pleistocene : Natland 1 

Mid-Continent, Pleistocene : Leonard

A. B. 1

Montana, Cambrian: Lochman 1

Ostracoderms, bibliography : Robertson

G. M.

Pennsylvania, Warrior formation, Cambrian : Tasch

Strontium cycle, significance: Odum

United States, western interior, JliraSSic: Imlay 1 

Wyoming, Cambrian: Lochman 1

ll'aleogeograpnlc maps. See Maps.

PftlCOgeOgraphy. See also Geologic History -,

Paleoclimatology. 

British Columbia, northeastern : McLearn

Capitan barrier reef, Texas and New 

Mexico, Permian: Adams, J. B.

Paleogeography Continued

Colorado, Uinta. Basin, Mesozoic : Stokes

1

Connecticut, Triassic : Krynine 1 

Crinoid evolution, relation : Moore,

R. C. 2 

Great Lakes area, Niagaran reefs : Lowens tarn 2

Hystricomorphs, evolution : Wood, A. E. 

Kansas, Bskridge shale, Permian : Wells, J. D. ' 

Mississippian-Pennsylvanian problem,

faunal migration : Elias 7 

Montana, central, Mississippian : Scott,

H. W. 

New Mexico, Woodford shale, Devonian :

Ellison, S. P. 2 

New York, Black River Valley, Trenton :

Chenoweth

Upper Devonian : Pepper 

Oklahoma, Pennsylvanian : Tomlinson,

C. W. 1 

Rocky Mtn. region, Paleozoic, Mesozoic :

Heaton 

Texas, Woodford shale, Devonian : Ellison, S. P. 2

Trilobita, range : Shaw, A. B. 1 

Uinta Basin, Colorado-Utah, Carboniferous-Permian : Bissell 

Utah, Uinta Basin, Mesozoic : Stokes 1 

Paleontology. For aereal see subheading

Paleontology under the various

states and countries . See also the

classes of animals ; Evolution ; Invertebrata ; Paleobotany. 

General.

Alberta, Alexo area, faunal list : Brdman 

Saunders area, faunal list : Erdman

 Ammonolclea, classification : Haas

Arthropoda, skeletal evolution : Gregory,

W. K. 

Bison, range : Savage, D. B.

Blastoidea, Devonian : Cline 2 

Phylogenetic relations : Reimann

Brachiopocla, Identification, statistical

method : Arden

Stropheodontid : Williams, A. 

California fossils, handbook : Schenck

Cephalopoda, Jurassic ammonites, classification: Arkell

Classification : Wright, C. W. 2

Coelenterata, MultiSOlenida : Fritz 1

Corals, Ordovician : Bassler 2 

Paleozoic : Bassler 2

Crinoidea, Endelocnnus

-vision : Strimple 1

EVOlUtlOn, relation to paleogeography : Moore, R. C. 2

Cyclogra.Dtiis Spencer -. Bvilinrtn 2

Cuba : Brodermann 1 ;

Sanchez Roig -1

Ordovician, new genera : Bassler 1 

. Elasmosaurs, environment and restoration ; Shuler
INDEX 361

Paleontology Continued 

General Continued

Evolution, theories : Simpson 2 

Evolutionary rate, species distribution :

Sloss 2 

Faunal migration, land bridges:

Haeberle 2; Pinson 

Mlssissippian-Pennsylvanian problem : Elias 7 

Sea to land : Pearse 

Favosites proximatus, new name:

Stumm 2

Forarainifera, Choffatella : Maync 2 

Enclothyroid, Mississippian : Zeller 

Gulf Coast, catalogue : McLean 2 

Ptycliocladia, Paleozoic : Elias 3 

Fossils, use: Sturgeon 

Fossilization criteria : Pierce, W. D. 6 

Fusulinids, development: White, M. P. 

Gastropoda, Anticlimax: Pilsbry 

Genera definition, distribution, correlation : Jeletzky 3 

Glycymeridae, origin : Nicol 

Homonyms, synonymous: Frizzell 1 

Hoplophoneus, Oligocene carnivore:

Hough 

Horse, brain, evolution : Edinger 1

Frontal sinus, evolution : Edinger 2 

Horse bones, Miocene, fluorine content:

Olsen 

Hystricomorphs, evolution and paleogeography : Wood, A. B. 

Index fossils, significance : Stephenson,

L. W.

Lepiclodendroid embryos: Darrah'2 

Lepidodendropsis: Darrah 1 

Massachusetts, Foraminifera facies,

Cape Cod Bay : Phleger 2 

Microsauria, Paleozoic: Romer 1 

Nautiloidea, classification : Flower 2 

Paleozoic, classification: Flower 4 

Nomenclature : Jeletzky 3

International Commission, decisions 

of Paris meeting, 1948: Sinclair 

Oreodonts, revision : Schultz, C. B. 1 

Osteostraci, species criteria : Robertson,

G. M.

Ostracoda, growth stages : Sohn 2 

Hingements: Levinson 1 

Mexico : Te'llez-Giro'n 

Paleoecology, method for determining

physical characters : Emiliani 

Pelecypoda, descriptive terminology:

Dodge, H.

Plagioptychinae : Mullerrled 2 

Pisces, Holostei, origin : Schaeffer 

Porifera, nomenclature: Okulitch 2 

Pre-Cambrian life : Fritz 2 

Problems: Elias 2

Quaternary faunas, subspeciflc advance : Hooijer 

Reptilia, Cope's types, Texas : Wilson,

J. A. 1

Diadectes, temporal elements : Olson, 

B. C.

Paleontology Continued 

General Continued

Research trend: Simpson 3

Silicofiagellates: Mandra

Species concept: Dunbar; Elias 5

Stereotoceras: Flower 1

Taxonomy, relation to stratigraphy:

Bell, W. C. 1 

Tortoises : Williams, E. 

Trilobita, geographic range: Shaw,

A. B. 1

Ordovician, genotypes : Whittington 1 

Trinu.cleus Murchison : Shaw, A. B. 3 

Vacuocyathus, new name : Okulitch 1 

Vertebrata, origin : Robertson, G. M. 

Skeletal evolution: Gregory, W. K. 

Use in dating formations: Schultz,

C. B. 2 

Cambrian.

Massachusetts, eastern, trilobites:

Shaw, A. B. 2 

Montana, Little Rocky Mts., trilobites:

Lochman 2 

Pennsylvania, stromatolites: Howell,

B. F. 2

Warrior formation : Tasch 

Quebec,' graptolites : Bulman 1 

Texas, San Saba area, sponge: Wilson,

J. L. 1 

Welge sandstone, trilobites: Wilson,

J. L. 3 

Trilobita, Ptychopleurites zone : Wilson,

J. L. 2

Washington, Metaline limestone, trilobites : McLaughlin, K. P. 1 

Near Addy: Okulitch 5 

Carboniferous.

Arkansas, conodonts : Hass

Fort Smith district, fossil plant list:

Hendricks, T. A. 1 

Callixylon, Mississippian : Hoskins 

Conifers : Florin

Crinoiclea, Pennsylvanian : Strimple 2 

Fern fructifications : Mamay 1 

Footprints: Baird, D. 

Foraminifera, endothyroid, Mississippian : Zeller 

Greenland, Northeast, brachiopods : Frebold 

Illinois, Botryopteris, Pennsylvanian:

Mamay 2

Mazon Creek, collections of fossil 

plants at University of Illinois: 

Stewart, W. N. 1

Mazon Creek nodules, tetrapods, Pennsylvanian : Gregory, J. T. 1 

McCraney fauna, Mississippian:

Stainbrook 1

McLeansboro formation, Medullosa: 

Stewart, W. N. 2 

Seed: Neely

Spores, Pennsylvanian : Kosanke, 1, 3 

Indiana, sphenopsid cone : Baxter
362 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1050

Paleontology Continued 

Carboniferous Continued

Iowa, bracblopod's, Mississlppian : Stainbrook 2 

Burlington limestone, Mississippian,

conodonts: Youngquist 1 

Charophyta, Pennsylvanian : Thomas,

L. A. 1 

Cordaitean leaf, Pennsylvanian : Reed,

F. D. 

Gonlatites, Pennsylvanian : Miller, A.

K. 1 

McCraney fauna, Mississippian:

Stainbrook 1 

Micropaleontological zones: Thomas,

L. A. 2 

Kentucky, aautiloid, Mississippian:

Miller, A. K. G 

Lepidodendropsis: Darrah 1 

Michigan, spores, Pennsylvanian:

Arnold

Missouri, Pennsylvanian : Cline 1 

Ohio, Athens County, upper Freeport

coal, flora : Abbott 2 

Oklahoma, conodonts: Hass 

Pennsylvania, Kittanning coal, megaspores, Pennsylvanian : Ferm 

Texas, ammonoids, Barnett formation,

Mississippian : Miller, A. K. 5 

Finis shale, Pennsylvanian : Miller, A.

K. 3

Helms formation, ostracodes, Mississippian : Sohn 3 

Llano region : Plummer, F. B. 

Utah, Confusion Range, cephalopods,

Mississippian : Youngquist 2 

Lucerne Valley, plant spores : Schemel

1

Wasatch Mts., fusulinids, Pennsylvanian : Thompson, M. L. 

West Virginia, faunal lists, Mississippian : Wells, D. 

Yukon, coral: Harker 

Genozoic.

Cuba, Foraminifera: Bermfldez 1 

Vertebrates, migration : Stirton 2

Cretaceous, 

Alaska, Kamishak Bay area, cephalonocls : Hazzard 1

Alberta, dinosaur : Sternberg i, 2

Atlantic Coastal Plain, Foramlnlfera:

McLean 1

British Columbia, Vancouver island, 

west coast: Jeletzky 2

Colorado, aoutli"w<sat;oi--ii £>iu.ut:E* - jBro-wn

K. W. 3 

Cuba, Foraminifera, Choffatella: Maync

2

Gstracoda : Bold 

Fauna, correlation -with Jurassic : Jeletzky 3

Florida, Foraminifera, Choffatella:

Maync 2

Foraminifera, Barkerina: Frizzell 3 

Gribrostomoides: Frizzell 3 

Nomenclature : Frizzell 1 . 

Planularia planotrochiformis: Hussey 1

Paleontology Continued 

Cretaceous Continued

Greenland, East : Maync 1

Iowa, plant microfossils : Schemel 2

Kansas, iish, Niobrara chalk : Gregory,

J. T. 2

Fish egg capsule : Brown, R. W. 4 

Kiowa shale, Foraminifera : Loeblich 3 

Manitoba, Actinocamao;, belemnite : Jeletzky 1 

Mexico, Arroyo de la Leona, cephalopod :

Maldonado-Koerdell 6 

Coahuila, equisetal : Maldonado-Koerdell 2

Colima, brachiopod : Maldonado-Koerdell 7

Echinoid : Maldonado-Koerdell 7 

Fishes : Maldonado-Koerdell 3 

Foramiaifera, Choffatella: Maync 2 

Los Hornos, rudistid : Mullerried 6 

Nuevo Le6n : Mullerried 3 

Mississippi, Foraminifera, list : Miss.

Geol. Soc. 

Montana, Sweetgrass arch, Telegraph

Creek formation : Cobban 

New Mexico, San Juan Basin : Colbert 2 

North America, fossil Sequoia: Chaney 

North Carolina, Coastal Plain, faunal

lists: Richards, H. G. 3 

Petrified wood : Berry, E. W. 3 

Oklahoma, dinosaur : Stovall 2 

Texas, elasmosaur : Shuler ; Welles 

Foraminifera : Applin, E. E. R. 1 

Van Horn Mts. : Havard 

United States, eastern : Stephenson, L.

W. 

Devonian.

Alberta, brachiopods : Crickmay

Crowsnest Pass-Jasper area : de Wit 

Sunwapta Pass area : Severson 

Blastoidea: Cline 2

Brachiopoda, stropheodontid, new genera : Williams, A. 

Canada, western, faunal zones : Warren,

P. S.

Crinoids : Goldring

Greenland, Cape Franklin .area, crossopterygian : Jarvik 3

Eaot, croBsoptoryeiann : Jn.rvilc 2

Ichthyostegids ; Jarvik i

Iowa, Cedar Valley limestone, OODOdonts : Downs

Micropaleontological zones : Thomas,

,/Creek shale, conodonts;

Thomas, L. A. 3 

Manitoba, faunal lists : Balllle

Michigan, Fenesteila, nomenclature :

Elias 4

Pelecypods: La Rocque

Traverse group, corals : Stumm 3 

Montana, Atrypa, new species: Kottlowski 1 

New Jersey, conularid, Esopus formation : Herpers 1 

Esopus formation, fauna : Herpers 2
INDEX 363

Paleontology Continued 

Devonian Continued

New Mexico, Woodford shale : Ellison,

S. P. 2 

New York, Cayuga Lake area, plant

stems : Banks, H. P. 

Qilboa, arthrodire, -new species : Denison

Gilboaphyton, classification : Krausel 

Ludlowville formations : Fisher, D. W. 

Sponge : Richardson, E. S. 

North America, Anthozoa, Tabulata,

types: Stumm 1 

Ohio, bone beds, ostracodes: Stewart,

G. A. 

Ontario, Campbell Lake area, faunal

list: Satterly 2 

Jaab Lake area: Satterly 1 

Quebec, Gaspe" County, fish and eurypterid: Russell, L. S. 1 

Stereotoceras: Flower 1 

Texas, Andrews County, conodonts:

Ellison, S. P. 1

Woodford shale: Ellison, S. P. 2 

Wyoming, Atrypa, new species: Kottlowski 1 

Jurassic.

Ammonoidea, classification: Arkell;

Haas 1 

British Columbia, Vancouver Island,

west coast: Jeletzky 2 

Cuba, sepioid : Schevill

Vifiales area, cephalopods: Sanchez

Roig2

Vifiales Valley, ammonoids : Torre 

Fauna, correlation with Cretaceous:

Jeletzky 3

Glycymeridae, origin: Nicol 

Mexico, Nuevo Le<5n : Mullerried 3 

Oaxaca Province: Salas 

San Pedro Altetepan area, ammonites :

Mullerried 4 

Tamaulipas, Sierra de Cruillas : Maldonado-Koerdell 1 

Montana, Ellis formation, Foraminifera: Lalicker 

Foraminifera : Loeblich 2 

North Dakota, Foraminifera : Loeblich 2 

South Dakota, Foraminifera: Loeblich 1 

Wyoming, Foraminifera : Loeblich 2 

Ordovician.

Corals, classification : Bassler 2 

Echinodermata, new genera: Bassler 1 

Iowa, micropaleontological zones:

Thomas, L. A. 2 

Kentucky, Cyrtodonta, new species:

Conkin 1

Sleepy Hollow: Conkin 2 

Michigan, Utica shale, graptolltes:

Decker, C. E. 1 

Montana, Big Snowy Mts., trilobites:

Lochman 3

Pennsylvania, Kempton area, Martinsburg formation, faunal list: Mose 

ley

Trilobita, genotypes: Whittington 1 

Protaspid, ontogenetic development: 

Ross, R. J.

Paleontology Continued 

Ordovician Continued

Vermont, Montpelier area, cup corals:

Cady, W. M. 1 

Virginia, Edinburg formation, trilobites :

Whittington 2 

Yukon, Pelly Mts., graptolites : Decker,

C. E. 2 

Paleozoic.

Ammonoids, distribution : Miller, A. K.

7 

Bryozoa, mid-Continent, paleoecology :

Ellas 1

Corals, reference lists : Bassler 2 

Lepidodendroid embroyos : Darrah 2 

Microsauria: Romer 2 

Nautiloids, classification : Flower 4 

Ostracoda, hingements : Levinson 1 

Trilobita, geographic range: Shaw,

A. B. 1 

Washington, northeastern : McLaughlin,

K. P. 2 

Permian.

Colorado, South Canyon Creek area,

Mollusca : Bass 2 

Conifers : Florin 

Footprints: Baird, D. 

Greenland, Northeast, brachiopods!

Frebold

Kansas, Insecta: Carpenter, F. M. 

New Mexico, Abo formation fauna:

Romer 1

Oklahoma, reptile : Stovall 1 

Reptilia, Diadectes, temporal elements:

Olson, E. C. 

Texas, fusulinlds, Moran formation:

Henderson, G. G. 

Glass Mts., brachiopods: Cooper,

G. A.

Ostracodes: Sohn 1 

King County, Platysomua: Wilson,

J. A. 2

Ochoa series : Donegan 

Washington, fusulinlds: Danner 

Pre-Camlrian

Evidence of life : Fritz 2 

Michigan, fossil burrows: Faul 

Quaternary.

British Columbia, Cordova Bay lignite,

beetle : Pierce, W. D. 4 

Lynn Creek lignite, beetle: Pierce,

W. D. 4

Carabld : Pierce, W. D. 3 

Seymour River lignite, fossil spider

silk : Pierce, W. D. 2 

California, Pleistocene Man, La Jolla:

Carter, G. F.

Rancho La Brea, Pleistocene : Stock 1 

Santa Maria district: Woodring 

Cuba, Mammalia : Aguayo 

Florida, Melbourne area, Pleistocene

mammals : Gazln 2

Greenland, Disko Bugt, Mollusca: Harder 

West, shell lists : Laursen
364 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Paleontology Continued 

Quaternary Continued

Indiana, Merrillville bog, pollen profile:

Guennel

Pinhook bog, pollen profile : Guennel 

Reed bog, pollen profile: Griflln, q. D. 

Labrador, pollen diagrams: Wenner 

Mexico, bison, Pleistocene: Hibbard 1 

Gulf of California, Foraminifera:

Natland 1

Gulf of California islands: Durham 1 

Lower California : Durham 1 

San Josgcito cave, bear: Stock 5

Horse: Stock 4 

Minnesota, Mammalia, Pleistocene:

Stauffer

North America, fossil man : Wormington 

North Carolina, Coastal Plain, faunal

lists : Richards, H. G. 3 

Oklahoma, mammals, Pleistocene:

Meade 

Oregon, Cape Blanco, Foraminifera:

Bandy 

Quaternary faunas, subspecific advance :

Hooijer

Quebec, Daveluyville area, whale, Pleistocene : Laverdiere 

Texas, Henderson County, Pleistocene

vertebrates : Stovall 3 

High Plains, mammals: Evans, G. L. 

United States, mid-Continent, Mollusca,

Yarmouthian: Leonard, A. B. 1 

Silurian.

Florida, eurypterid: Kjellesvig-Waering 2 

Indiana: Hare

Faunal lists : Esarey 1 

Missouri, Ste. Genevieve County, Foraminifera : Dunn 

New York, conularid : Howell, B. F. 1

North America, Try-plasma., occurrence :

Stumm 4

Ontario, Jaab Lake area: Satterly 1 

West Virginia, eurypterid, Wills Creels

formation: Kjellesvig-Waering i

Tertiary.

Alabama, Ostracoaa, aosport formation.

Eocene: Blake, D. B.

-A.rizona, Milk Creek area. Mammalia, 

Pliocene : Reed, C. A.

Atlantic Coastal Plain, Foraminifera:

McLoan 1

California, Anaverde flora, Pliocene:

Axelrod 4

Barsto-w, flamingo. Miocene : Miller

L. H.

Foraminifera, Meganos formation,

Eocene: Graham, j. j. 2, a

Mount Diablo, gilicoflageilates,

Mount Eden flora, Pliocene : Axelrod 3

Napa region, Pliocene florule : Axelrod 2

Piru Gorge flora, Pliocene : Axelrod 5 

Pliocene floras: Axelrod 7 

Santa Maria district: Woodrlng

Paleontology Continued 

Tertiary Continued

Cuba, Foraminifera: Bermfldez 1 

Eocene : Reichel 2 

Oligocene-Miocene : Reichel 1 

Mammalia: Aguayo 

Ostracoda: Bold

Desert vegetation, development: Axelrod 6

Dominican Republic, Cibao Valley, gastropods and pelecypods, Miocene : 

Ramirez 

Faunal migration, land bridges:

Haeberle 2 

Foraminifera, Hantkenina, Barbados:

Bronniman

Hantkenina, Trinidad : Bronniman 

Gulf Coast, foraminiferal guide zones:

McLean 3

Haiti, Port-au-Prince area: Butterlin 1 

Hoplophoneus, Oligocene carnivore:

Hough 

Horse bones, Miocene, fluorine content:

Olsen 

Kansas, Rexroad formation, mammals :

Hibbard 2

"Lockhartia" cushmani, Eocene, Florida : Applin, E. E. R. 2 

Madro-Tertiary flora : Axelrod 1 

Maryland, Chesapeake Bay region, mammals, Miocene: Gazin 1 

Foraminifera: McLean 4 

Mexico, bear molars, Pliocene: Stock 3 

Comalcalco well, Foraminifera: Alvarez A., J. 

Gulf of California, Foraminifera:

Natland 1

Gulf of California islands: Durham 1 

Ixhuatian-Moloacan area, Mollusca,

Miocene: Alencaster-Ibarra 2 

Lower California: Durham 1

Scaphopoda, Mlocer Alen casterIbarra 1

Tamauiipas, Foraminifera, Oligocene: 

Meneses de Gyves

Tampico-Tuxpan area, Foraminifera,

ougocence: Lim6n-Gutie'rrez

Vaseyanthus, vine, evolution ; Gentry

Yepomera, Chihuahua, Pliocene

Montana, Blacktail Deer Creek formatiOD, Miocene, mammals: Hibbard 3

Ruby Ri^or area, Insecta '. Zuidfima

Turtle, Miocene: Oeirich

Nautiloids : Miller, A. K. 2

Nevada, mollusks, Trucltee formation.

Pliocene: Yen 

New Mexico, San Juan BaSifl, failDEl

 list: Simpson i

Primates, Paleocene: Wilson, K, W.

North America, fossil Sequoia : Chaney 

North Carolina, Coastal Plain, faunal

lists: Richards, H. 0. 8

Oregon, Astoria, sea cow, Miocene :

Shotwell

Cape Blanco, Foraminifera: Bandy 

Coos Bay: James,. E. L.
INDEX 365

Paleontology Continued 

Tertiary Continued 

Oregon Continued

Near Pendleton, vertebrates : Sargent 

Sweet Home, cherry leaf, Oligocene:

Brown, R. W. 5

Oreodonts, revision : Schultz, C. B. 1 

Saskatchewan, mammals: Russell, L. S.

3 

South Dakota, Oligocene cat: Macdonald, J. R. 2 

Texas, rodent: Hibbard 4 

' Vermont, Brandon lignite : Barghoorn 

Washington, Willapa River Valley,

Foraminifera : Rau

Wyoming, Green River Basin : McGrew 

Yellowstone National Park, flora:

Beyer 

Triasslc.

Arizona: Colbert 8 

British Columbia, Vancouver Island,

west coast: Jeletzky 2 

Greenland, East, fishes : Nielseri 

New Mexico, Chama River Valley,

Chinle fauna : Colbert 2 

Utah, flsh: Schaeffer 

Paleotemperatures.

Determination, oxygen Isotope method :

Urey 1 

Paleozoic.

Alberta, Banff area: Beales

Callum Creek map-area : Douglas 1 

Gap map-area : Douglas 1 

Langford Creek map-area : Douglas 1 

Mount Head area : Beales ; Douglas 2 

British Columbia, northeastern: McLearn

Canada, interior plains : Link, T. A. 3 

Colorado, Boulder area : Harding, R. C. 

Uinta Basin : Crittenden 

Western : Bass 1

Cyclic sedimentation : Willard 2 

Greenland, northwest: Troelsen 2 

Illinois, Peoria area : Horberg 2 

Kansas, eastern: Jewett 

Kentucky, Button Knob area: Jillson 5 

Jackson Purchase region : Freeman;

Roberts, J. K. 1

Maine, Moosehead Lake area: Hurley 3 

Mexico : Alvarez 1 

Montana, sedimentation : Sloss 1

Southeastern, subsurface : Leatherock 

New York, central: Willard 4 

Newfoundland, Little Rattling Brook

area: Hriskevitch 

Northwest Territories, Imperial River

Canyon: Laudon 

Ohio : Harper, A. R. 

Pennsylvania, Bradford quadrangle,

deep well: Hoffacker 

.Northeastern : Willard 4 

Subsurface: Fettke 1 

Turnpike area: Cleaves 1 

Quebec, Gaspe" Peninsula, eastern : McGerrigle

Waswanipi Lake area, Abitibi-East 

County : Blake, D.. A. W.

Paleozoic Continued

Rocky Mtn. region, paleogeography:

Heaton

Utah, southeastern : Bass 1 

Uinta Basin : Crittenden 

Split Mountain area: Untermann 

Virginia, Valley and Ridge province:

Edmundson 

West Virginia, Alvon area, Paleozoic:

Maxwell

Wyoming, southwest: Thomas, H. D. 

Wind River Mts., southwest flank:

Love 3

Panama, Gatun Lake area, stratigraphy, 

structure, and geologic map : Jonee, 

S. M. 

Paragenesis.

Manganese minerals : Wadsley 

Ores: Bastin 2

Peat. See also Paleobotany ; Pollen analysis. 

British Columbia, pollen analyses : Hansen

California : Calif. Diy. Mines Staff 

Massachusetts, No Mans Land Island,

Quaternary: Benninghoff 2 

Quebec, Clair peat bog : Risi 

Pediments.

Arizona, near House Rock : Miller, V.

C. 2

Nomenclature: Maxson 3 

United States, western, Mesozoic:

Stokes 2

Pedology. See Soils. 

Pegmatites.

Alabama, Coosa County, tin area : Reed,

A. H.

Colorado: Hanley 

Beryl: Page, L. R. 1 

Quartz Creek district: Staatz 

Cordierite: Heinrich, E. W. 4 

General: Tyler, P. M. 

Grade and reserves determination : Page,

L. R. 3 

Idaho : Stoll 

Montana: Stoll

Bozeman area : Clabaugh 2; Heinrich,

E. W. 5

New Hampshire : Olson, J. C. 

New Mexico, Harding pegmatite area :

Montgomery 

North Carolina, Masons Mtn., stauro

lite: Heinrich, E. W. 6 

Sulfldes in: Heinrich, E. W. 3 

Quebec, LaCorne Township : Derry 1 

Relation of country rock to shape:

Staatz

South Dakota, Custer County :' Needham 

Fourmile area, altered schist wall

rock: Lang, A. J. 

United States, southeastern : Parker, J.

M. 

Uranium-bearing: Page, L. R. 2 

Utah: Hanley 

Wyoming: Hanley 

Pelecypoda. See also Mollusca.

Dominican Republic, Cibao Valley, Miocene : Ramfrez

980682.° 52. -24.
366 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Pelecypoda Continued

Glycymeridae, origin: Nicol 

Kentucky, Oyrtodonta, Ordovician:

Conkin 1 

Mexico, Los Hornos, rudistid : Mullerried 6

Michigan, Devonian : La Rocque 

Plagioptychinae: Mullerried 2 

Terminology: Dodge, H. 

United States, mid-Continent, Pleistocene : Leonard, A. B. 1 

Peneplains.

New York, Adirondack Mts.: Crowl 

Wyoming, southwest: Knight 

Pennsylvania.

Geologic mapping, history : Willard 3 

Geological Survey, duties: Cathcart, S.

H. 2 

Porosity experiments, sands : Rosenfeld,

M. A. 

Economic geology.

Coal, coking, Cambria County, reserves : 

Dowd 1

Indiana County, reserves : Dowd 2 

Mt. Camel quadrangle: Rothrock, H.

E. 1

Reserves; Ashley; Rothrock, H. E. 2 

Industrial minerals: Stephenson, R. C. 

Magnetite, Dillsburg area : Hotz 1 

Mineral reserves, metallic: Gault 1 

Mineral resources, symposium: Pa.

Acad. Sci. 

Natural gas, deep wells : Fettke 1

Leidy Township : Cathcart, S. H. 1 

Petroleum, Bradford field: Harding, R.

W.

Cambro-Ordovician : Swartz 

Deep wells: Fettke 1 

McDonald field : Ingham 

Northeastern : Willard 4 

Oil field map : Lytle 1 

Reserves: Lytle 1, 2 

Geologic maps.

Carlisle area, Ordovician : Stose 1 

Dillsburg iron district: Hotz 1 

Evansville area, sketch map: Gray, C. 

General: Cleaves 1 

Kempton area, Ordoviolan-Silurian :

Moseley

Lehigh River area, sketch map : Stose 2 

Northern coal field, Wilkes-Barre area,

sketch map : Ash 

Safe Harbor quarry : Chapman, R. W.

ffrotwrf water,

Great Valley: Foose 

Philadelphia area: Graham, J. B. 2 

Pittsburgh area : Van Tuyl, D. W. 

Resources : Graham, J. B. 1

Historical geology.

Bradford Third sand, Devonian, correlation : Harding, R. W. 

Cambro-Ordovician, subsurface: Swartz

Carlisle area, Ordovician; stose i 

Eastern, Cambrian: Howell, B. F. 2 

Evansville area, Ordovician : Gray, C. 

Lehigh River area, Taconic sequence, 

Ordovician: Stose 2

Pennsylvania Continued

Historical geology Continued

Martinsburg formation, Ordovician, 

Kempton area: Moseley

Mt. Carmel quadrangle: Rothrock, H. 

E. 1

Nittany arch, windows: Fox

Northeastern, Paleozoic: Willard 4

Paleozoic, deep well, Bradford quadrangle : Hoffacker 

Early, subsurface : Fettke 1 

Pennsylvania Turnpike : Cleaves 1

Southwestern, subsurface: Ingham 

Mineralogy.

Cacoxenite: Gordon

Celestite, Wills Creek limestone, Silurian : Hamilton, H. V.

Quartz crystals, Crystal Hill, Monroe 

County: Lee, O. I.

Zinc sulflde polymorphs : Frondel, C. 1;

Seaman 

Paleontology.

Martinsburg formation, Ordovician, 

Kempton area, faunal list: Moseley

Megaspores, Kittanning coal, Pennsylvaman; Ferm

Stromatolites, Cambrian: Howell, B. 

F. 2

Warrior formation, Cambrian : Tasch 

Petrology

Chert, Ordovician : Folk 1

Dillsburg area, magnetite : Hotz 1

Granophyre in diabase, origin, Harrisburg area: Hotz 2

Peach Bottom slate : Agron 2

Peach Bottom syncline, deformation : 

Agron 1

Safe Harbor, diabase Intrusion : Chapman, R. W.

Schist inclusions in diabase, Safe Harbor : Tomlinson, W. H.

Wissahlckon schist, Philadelphia : Ch'ih 

Physical geology.

Evansville area, structure : Gray, C.

Henderson dome, origin: Fettke 2 

Nittany arch, windows: Pox

Peach Bottom slate : Agron 2 

Physiographic oeolooy.

Streams, subsequent, Ridge and Valley

province: Broscoe 

Susquehanna River buried valley,

Wilkes-Barre area: Ash 

Pennsylvania!!. See Carboniferous.

Peridotite,

New York, Ithaca area, dike : Broughton

Wyoming, Laramie Mts. : Albanese 

Permafrost.

Alaska, Seward Peninsula: Hopkins,

D. M.

Fairbanks area: Pe" we" 2

General: Black ; Frost, R. E. ' 

Permeability..

Bradford sand, grain orientation:

Griffiths

Carbonate rocks: Imbt, W. C. 

Dolomite, determination : Locke
INDEX 367

Permeability Continued

Field tests : Ahrens, T. P.

General: Fancher

Limestone, determination : Locke

Ore distribution in limestone and

dolomite, influence of: Ohle 

Petroleum reservoir rocks: Russell,

C. D.

Reservoir rocks, petrophysics : Archie 

Sediments : Foley

Permian. See also Carboniferous ; Paleontology, Permian. 

Arizona, Kaibab limestone: Price,

W. B. 2 

Capitan reef, Texas and New Mexico :

Adams, J. B.

Colorado, McCoy area : Sheridan 

San Juan Basin : Read 1 

Uinta Basin : Bissell 

Cyclic sedimentation : Moore, R. C. 1 ;

Wanless 1 

Mexico: Alvarez 1

New Mexico, San Juan Basin : Read 1 

Ochoa series : Donegan 

Oklahoma, Anadarko Basin : Wheeler,

R. R. 1

United States, southwest, Castile and 

Salado formations: Lang, W. T. B. 

Utah, Uinta Basin : Bissell 

Washington : Banner 

Petrofabrics.

Fabric diagrams, grain elongation:

Wood, W. H.

Peach Bottom slate, PennsylvaniaMaryland : Agron 2 

Pennsylvania, Wissahickon schist:

Ch'ih 

Pressure shadows and movement In a

shear zone: Fairbairn 2 

Storm King granite, New York: Lowe 

Yule marble: Rosenholtz 1; Turner

1, 3 

Petrography.

Calcareous rocks, acid etching: Lamar

Granite, homogeneity: Chayes 4

Mine rock, types : Windes

Ore textures: Bastin 2

Oxygen in rocks, reference for petrographic calculations: Perrin 

Phosphate rock: McConnell 2 

Petroleum. See also Bituminous rocks; Oil

shale ; Oil and gas fields. 

Accumulation, relation to stratigraphy

and structure : Wheeler, R. R. 3 

Stratigraphic traps : Wheeler, R. R. 2 

Alabama : Jones, W. B. 1, 2 

Alaska: Ver Wiebe

Exploration, 1949 : Miller, R. L. 2 

Alberta: Link, T. A. 5

Callum Creek map-area: Douglas 1 

Gap map-area : Douglas 1 

 Joseph Lake field, Cretaceous : Hunt,

C. W. 2

Langford Creek map-area: Douglas 1 

Leduc field : Hopkins, O. B. 1 

Lloydrainster field : Coons 

Redwater field :, Hancock

Petroleum Continued 

Alberta Continued

Seismic prospecting: Tellington 

Stettler field: Lockwood, R. P. 

Turner Valley field : Gallup 

Whitemud field, Cretaceous: Hunt,

C. W. 1 

Appalachian region, relation to red

beds : Rittenhouse 

Applied geology, symposium : Van Tuyl,

F. M. 

Arkansas, Cairo oil field : Goebel

Smackover limestone: Vestal, J. H. 

Arizona, potential: McKee 2 

Atlantic Coastal Plain : Straley 1 

California: Calif. Div. Mines Staff:

Hazzard 3

Calder fleld: Carter, F. B. 

Eastern mountain and desert region,

potential: Easton 1 

Helm field : Frame 2 

Imperial Valley, potential: Tarbet 

Kern Bluff field : Corwin 

Montalvo field : Molr 

Northern Coast Ranges, potential:

Gester

Placerita field : Barton ; Oakeshott 1 

Sacramento Valley area, potential:

Hobson 

San Ardo fleld: Baldwin, T. A.;

Barger

San Joaquin Valley, potential: Kilkenny

San Jose Hills : Olmsted 

San Miguelito fleld : McClellan 

Santa Barbara County : Dibblee 

Santa Maria district: Woodrlng 

Santa Maria region, potential: Lupton

South Belridge fleld : Ritzius 

Southern coastal region, potential:

Oakeshott 2 

Southern mountain region, potential:

Oakeshott 3

Southern, offshore : Emery 8 

Tejon Ranch area: Armstrong, H. K. 

Ventura region, potential: Rand 

Canada: Ver Wiebe

Interior plains : Link, T. A. 3 

Major fields: Heald, K. C. 3 

Western : Haider; Hopkins, 0. B. 2; 

Link, T. A. 4; von Gaertner 

Geophysical exploration : Beck A. F. 

Reefs : Beach

Canadian Shield, effect on oil structures : Harrison, J. M. 

Clay mineralogy, significance : Grim 4 

Clay properties, significance in oil production : Cox 

Colorado : Dobbin 1 

Eastern : Oborne 

Piceance Creek Basin : Duncaq 

Rangely fleld : Patton, H. L. 

Cuba : Calvache Suarez

Cardenas Bay : Brodermann 2 

Jarahu'eca region : Williams, E. R. 

Depth of occurrence : Clonlnger
368 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Petroleum Continued

 Exploration: Stebinger

Aerial photography : Bench'; Brundal' 

Application of geologic processes

Link, W. K. 2 

Borehole methods: Cervera del Cas

tillo

Core analysis, use: Russell, J. B. 

Electronics : Baiter 

Fields of the geologist and engineer

Beach

Fluoroanalysis : De Ment 1 

Gammatron surveys: Lang, B. 

Hydrocarbon curves : Campbell, 0. B. 

Methods : Kaufmann, G. F. 

Mexico : Aguilar ; Garcla Rojas 2 

Mineral alteration studies: Lasky

B. H.

Radio wave prospecting: Mann, R. 

Radioactivity : Stothart 

Radioactivity well logging, popular

account: Anonymous 8 

Rocky Mtn. region : Hager 1 

Stratigraphic traps : Rea 

Subsurface logging techniques : Moore,

C. A.

Technique: Busch 

Ultraviolet light: De Ment 2 

Velocity surveys in wells : Daly, J. W. 

General: Gibson

General popular account: Anonymous 6 

Geologic engineering in the industry :

Heald, K. C. 1 

Gulf Coast, continental shelf: Carsey ;

McGee

Illinois, Niagaran reefs : Lowenstam 1 

Kansas, Arbuckle formation, Cambro-

'Ordovician: Bartram 

Barton County : Nixon 1 

Central, pre-Cambrian: Walters 

Eastern : Jewett 

Forest City Basin : Ruwwe 

Stafford County: Nixon 1 

Kentucky, Button Knob area : Jillson 5 

Cumberland County, first oil well :

Jillson 3 '

Island area : Jacobsen 

Utica field: Bruce, C. H. 

Limestone source rock : Masters 

Louisiana, Gulf Coast fields, Eocene:

Bornhauser 

Manitoba: Allan 2

Mexico : Gibson ; Noriega ; Ver Wiebe

Development: Guzm&n 2

Lower California: Mina Uhink 2

Macuspana region, Tabasco : Gutierrez Gil

Moloacan-Ixhuatlan area, Veracruz : 

Contreras . Morallllo field: Castill6n B.; Suarez 

C.

Northeast, radioactive logging: Cervera del Castillo

Potential areas : Alvarez 2

Poza Rica area: L6pez Ramos 1; 

Luna

Reserves : Barnetche ; dimming

Petroleum Continued 

Mexico Continued

Reynosa field, Tamaulipas : Tzaguirre 

Seismologic exploration: Rummerfield

Tampico Basin : De Alba 

Veracruz basin : Viniegra O.

Geophysical exploration : Espinosa 

Mid-Continent, A r b u c k 1 e-Ellenburger 

formation, C a m b r o-Ordovician : 

Bartram

Migration : Wilson, W. B. 2 

Mississippi: Thomas, E. P.

Brookhaven field: Womack 

Montana, Button Butte-Forestgrove

area: Gardner, L. S. 

Nebraska, Julesburg Basin : McCanne 

Nevada, potential: Dudley 

New Mexico : Bartley 2 

New York, Cambro-Ordovician : Swartz

Central: Willard 4 

North Carolina : Berry, E. W. 1 

Northwest Territories, Norman Wells

pool : McKinnon 

Occurrence: Stebinger 

Ohio, Blue Rock-Salt Creek pool area,

origin : Swain

Oil shale as source beds : Ferris 

Oklahoma, Anadarko Basin : Kornfeld 

Ardmore basin : Peterson, E. T. 

East Pauls Valley pool: Frost, V. L. 

Elk City field : Beams; Kornfeld ;

Wilgus

Eola field : Swesnik 2 

Golden Trend area : Wheeler, R. R. 3

Paleozoic: Swesnik 1 

Lindsay area : Swesnik 3 

North Pauls Valley field : Northrip 

Northwestern : Maddox, G. C. 

Ringwood field: Kornfeld 

Sholem Alechem field : Billingsley 

Southeast Newcastle field : Spradlin 

Southwest: Caswell 

Weber pool: Johnston, K. H. 

West Eclmond field : Milne, W. P. 

Ontario, south-western : Evans, C. S. 

Oregon, potential: Buddenhagen 

Origin : Link, W. K. 1; Whitehead 1

Bacterial: ZoBell 1

Catalysis and carbonium ions : Brooks 

From lignite: Hubbard 

Reefs : Boos, C. M.

Pacific Coast region, future provinces : Moody

Pennsylvania, Cambro-0 r d o v i c i a n :

Swartz

Deep wells: Fettke i 

Northeastern: Willard 4

Oil field map : Lytle 1

Reserves: Lytle 1, 2 

Southwestern, McDonald field: Ingham

Permeability in carbonate rocks: Imbt,

W. C.

Porosity in carbonate rocks : Imbt, W. C. 

Quebec, Gaspe1 Peninsula, eastern : McGerrlgle
INDEX 369

Petr oleu m Contimi ed

Radioactivity logging: Terry

Reefs, seismic detection : Alcock, E. D.

Trends and configurations: Link, T.

A. 6

Reserves : Am. Petroleum Inst.; Ayres ; 

Lahee; Pratt 1, 2; Stebinger; 

Weeks, L. G.

Reservoir rocks, permeability: Russell, 

C. D.

Petrophysics: Archie

Porosity : Russell, C. D. 

Saskatchewan, Lloydrninster area:

Coons 

Texas : Bartley 2

Abilene area, oil field structure : Abilene Geol. Soc. 2

Alexander-Myatt area: Byram

Bateman Ranch field : Walker, R. Y. 1

Beddo field : FitzGerald

Blackfoot field: Branson

Bronte field: Brown, R.

Diamond M reef field : Klinger

Ellenburger formation, Ordovician: 

Bartram

Fort Worth Basin: Moorhead

Good field: Rodan

Howard field: Perini

Humphrey-Gray pool: Martin, B. H.

Jimburt pool: Tompkins

Jud pool: Bassett, J. S.

Meadows field: Shepherd

Millican field: Bonifield

North Winters field : Wasselhoeft

Pardue field : Vickers

Pegasus field: Anonymous 6; Shepherd

Roby pool: Barnes, A. E.

Ross Ranch field : Walker, R. Y. 2

Rotan field: Perini

Round Top field : Day

Scurry County : Van Siclen

South Haskell field : Edwards

Susan Peak field : Graham, D. W.

Todd Deep field : Imbt, R. F.

Vealmoor field : Taylor, S. J.

Weinert field: Kerfoot

West, Pennsylvanian : Bartley 1

West central, oil field structure: Abilene Geol. Soc. 1

West reefs, Pennsylvanian : Kepliriger

Winters pool: Tompkins 

Trinidad, Morne Diablo-Quinam field:

BanUnited States: Ver Wiebe

Major fields: Heald, K. C. 3

Reserves : Am. Petroleum Inst.; Ayres 

Utah : Hager 2

Ashley Valley field: Peterson, V. E.

Potential: Dudley

Roosevelt field : Miller, J. R.

Uinta Basin : Eardley 1 

Virginia, Jonesville district: Miller, R.

L. 1

Washington, potential: Etherington 

West Virginia, northern, pre-Devonian : 

Reeves

Petroleum Continued

Wyoming, Aspen field : Hauptman 

Cretaceous strata: Love 5 

LaBarge field: Christensen 

Lander area : Thompson, Raymond M. 

Penetration chart for oil and gas

wells: Wyo. Geol. Assoc. 2 

Powder River Basin : Rea 

Southeastern, - penetration chart:

Wyo. Geol. Assoc. 3 

Spring Valley field : Hauptman 

Sulphur Creek field : Hauptman

Yukon: Bostock

Petrology (general). For areal see subheading Petrology under the various 

states and countries. See also 

Igneous rocks ; Metamorphic rocks; 

Meteorites; Rock descriptions; 

Sedimentary rocks ; Technique.

Alaska, Katmai eruption, pumice: 

Fenner

Binary systems, tejnperature-pressureconcentration diagram : Tunell 1

California, Lucerne Valley, replacement : Campbell, I. 1

Connecticut, Triassic sediments: Krynine 1

Experimental, Geophysical Laboratory 

research : Adams, .L. H.

Grain-size measurement: Chayes 3; 

Krumbein 2

Granite, origin : Chayes 2 ; Koschmann 

3; Turner 4

Graywackes and turbidity currents: 

Pettijohn

Greenland, Kap Daussy dikes, differentiation : Vincent

Igneous contacts, variation in chemical 

composition : Dennen

Magma crystallization, element segregation : Osborn 1

Metamorphic rock investigations, technique : Billings 3

New Brunswick, St. Stephen norite: 

Dunham 2

Nickel-cobalt-silver ores, Ontario : Bastin 1

North Carolina, Masons Mtn., rhodolite 

gneiss : Heinrich, E. W. 6

Ore textures : Bastin 2

Peach Bottom 'slate, PennsylvaniaMaryland : Agron 2

Pennsylvania, Wissahickon schist: 

Ch'ih

Plagioclase study : Emmons

Potash-rich rocks, formation: Higazy

Quartz veins in schist, origin : Chapman, C. A. 2

Replacement, mineral distribution: 

Chayes 1

Reservoir rocks, petrophysics: Archie

Rock-magma and rock-species: Shand

Silicate rocks, minor constituents: 

Ahrens, L. H. 1

Textbook : Wahlstrom 1

Wyoming, Newcastle sandstone, facies 

control: Summerford
370 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Phosphate.

Calcium, data: Farr

California, offshore, phosphorite nodules : Emery 1

Composition: Hendrieks, S. B.

Florida: Cathcart, J. B. 1 

Leaching: Cathcart, J. B. 2 

Pebble deposits, age: MacNeil

Guano minerals: Hutchinson, G. E.

Jamaica: Hose

Mexico, offshore, phosphorite nodules: 

Emery 1

Montana, Highland Mts. : Sahinen

Tennessee: Burwell, H. B.

Thermal analysis: Manly

Wyoming: Cochran 1 

Phosphate rock.

Minerals: McConnell 2

Petrography : McConnell 2

Uranium content: McKelvey 2 

Phosphorus, test, on rock surfaces: Mann,

V. I. 

Photogeology.

Flat-land geomorphology : Melton 2

General: Guerra Pefia ; Tator 1

Photogeologlc maps, compilation: 

Wasem

Recent literature: Smith, H. T. U. 2

Scope, problems: Smith, H. T. U. 1

Structural contouring: Desjardins 2

Symposia: Lundahl

Teaching, aerial photograph collection, 

University of Illinois : Wanless 2

Techniques: Desjardins 3

Texas, Gulf coastal area: Desjardins, 1

University curriculum : Tator 1

Utah, Monument Upwarp : Wengerd 2 

Physical geology (general). For area! see

subheading Physical geology under

the various states and countries. 

Applied sedimentation : Trask 1

Carolina bays, origin: Melton 1

Cave formation : Hendrix 

Constriction tneory ; M^I^BO

Continent formation: Bucher 1

Coranierai. oroeouy , mechanism : Wlsser

U

Eddies, tidal, traces: Cooke, C. W.

Fractures, mathematical theory :

Riverton, Virginia: Shamm

Graded bedding, origin : Kuenen 3 

Great Basin, tectonics : Long-well 1

Gully formation: Bucknam 2

Laboratory manual: Matter, K. F. 1 

Lake Mead, Colorado River, sedimentation : Nichols 

Landslides: Varnes

New York, Finger LaRes, beactt gra.^«,i :

Taber 2

Pedimentation : Stokes 2

Eeef formation: Ladd

Reefs : Shrock

Sediment transportation by bubbles:

Menard 2

Sedimentation processes: Trask 2 

Shoestring sands, formation, structure :

Evans, 0. F. 2

Physical geology (general) Continued

Shore control problems : Mason, M. A.

Shorelines, motion during deposition: 

West

Sink structures, Missouri: Bretz 2

Survey of progress: Daly, R. A. 1

United States, Basin and Range province, tectonics: Longwell 1

Textbook : Monnett

Weathering, processes and products:

Reiche 1

Physiographic geology (general). For areal 

see subheading Physiographic geology under the various states and 

countries. See also Drainage 

changes ; Glacial geology ; Geomorphology.

Colorado Valley : Powell, J. W.

Continental shelf, origin : Weaver 1

Cumberland Plateau, Pliocene fluvial deposits : Jillson 1

Depressions, New Mexico : Judson

Erosion pavement: Lowdermilk

Erosion slopes, slope-angle equilibrium, 

analysis: Strahler 2

Ice caves, origin : Merriam

Kansas, Great Plains, depressions : Frye 

1

Mounds, Siskiyou County, California: 

Masson

Pimple mounds, origin : Price, W. A.

Range formation, California : Maxson 2

Texture of topography, standards for 

grading: Smith, K. G.

Dinta Mts.: Powell, J. W.'

Vermont: Jacobs 

Pisces.

Greenland, Cape Franklin area, Middle

Devonian: Jarvik 3 

East, CrOSSOpterygians, Devonian:

Jarvik 2 

Trlasslc : Nlelsen

Holostei, origin: Schaeffer

Kansas, egg capsule, Cretaceous: Brown,

K.. W. -4

Niobrara chalk, Cretaceous: Gregory,

-T. T. Q. 

MexiCO, Cretaceous : Maiaonaao-Koerdell 3

New York, Giiboa. arthrodire, Devonian: 

Denison

osteostraci, species criteria: RobertSOB,

G. M.

Ostracoderms, paleoecoiogy, bibliography : Robertson, G. M.

Relation to vertebrate origin : Robertson,' G. M . 

^ a.tvaom.'u.a, Permian. Texas: Wilson,

J. A. 2

Quebec, Gasps' County, DCVODlaD! BUSsell, t,. S. 1

Utah, Triassic: Scnaeffer

Pitchblende.

OfltarJO, Lake Superior, east shore-.

Nuffleld 

Saskatchewan, Goldflelds: Conybeare 1
INDEX 371

Placers. I

Colorado, Park County, gold : Singewald

Mexico, Antimonio district, antimony : 

White, D. B. 1 . |

Montana, Helena, gold : Boulter 

Plants, fossil. See Paleobotany. 

Pleistocene. See Glacial geology; Quaternary.

Pliocene. See Tertiary. 

Pollen analysis. See also Paleobotany ; Peat.

British Columbia: Hansen

Labrador : Wenuer 

Popular and elementary geology.

Bibliography : Pangborn

Cave formation : Nunez Jimenez

Columbia-Snake River lava plateau, 

northwestern United States : Fenton

Dinosaur National Monument, ColoradoUtah : U. S. G. S. 1

Earth heat: Benfleld 2

Elasmosaurs, environment and restoration : Shuler

Poraminifera : Bermudez 2

Fossils, use : Sturgeon

Geology : Am. Assoc. Petrol. Geol.

Great Smoky Mtn. region, North Carolina-Tennessee, geologic history: 

King, P. B. 1, 2

Michigan, Upper Peninsula, geologic history : Vietzke

Mineral formation : Rowley

Mineralogy, a science and hobby: 

Meen 1

Minerals in medicine: Delarlo

New Hampshire, Lovewell Mtn. quadrangle : Heald, M. T. 1 

Mt. Pawtuckaway quadrangle : Freedman 1

Ohio : Harper, A. R.

Petroleum, occurrence: Anonymous 6

Physical geology, survey of progress: 

Daly, R. A. 1

Radioactivity well logging: Anonymous

8

' Sequoia National Park, California: 

Matthes 3

Yosemite Valley, California: Matthes 2 

Porifera.

Astraeospongia, spicule comparison: 

Richardson, E. S.

Monooyathus vs. Archaeolynthus: Okulitch 3

New York, Devonian : Richardson, E. S.

Nomenclature: Okulitch 2

Pluralicyathus for Polycyathus: Okulitch 4

Texas, San Saba area, Cambrian: Wilson, J. L. 1

Vacuocyathus, new name : Okulitch 1 

Porosity.

Carbonate rocks: Imbt, W. C.

Dolomite, determination : Locke

Leduc oil field, Alberta, reef zone: 

Waring

Limestone, determination: Locke

Reservoir rocks: Archie; Russell, C. D.

Porosity Continued

Sand strata, Pennsylvania, experiments : Rosenfeld, M. A. 

Sedimentary rocks: Fancher 

Texas, Palo Pinto reef: Kerr, A. J. 

Volume surface ratios, statistical analysis : Rose, W. D. 

Potassium, sedimentary rocks, content:

Whitehead 2

Potholes, Utah, Zion National Park : Spltznas 

Pre-Cambrian. See also Paleontology, PreCambrian.

Age measurements : Hurley 2 

British Columbia, clastic sediments,

origin : Daly, R. A. 2 

Carbon ratios : Fritz 2 

Colorado, San Juan Basin : Kelley 2

Uinta Basin : Crittenden 

Greenland, Kap Oswald area: Schaub . Gulf of St. Lawrence, Aguanish-Washlcoutai Bay area : Claveau 

Iron ores, origin : Sakamoto 

Manitoba, Lynn Lake area: Allan 1 

Wanipigow River area : Davies, J. F. 

Welclon Bay area : Kalliokoski 

Massachusetts, Hoppin Hill, Cambrian

contact: Dowse

Montana, Belt series: Perry, B. S. 1 

New Mexico, San Juan Basin: Kelley 2 

Newfoundland, eastern: Walthier 

Northwest Territories, Aylmer Lake

area: Lord

Christie Bay area: Brown, I. C. 2 

Fort Resolution area : Brown, I. C. 3 

Ghost Lake area : Wright, G. M. 

Giauque Lake area: Quinn, H. A.;

Tremblay 2

Matthews Lake area: Folinsbee 1 

Reliance area : Brown, I. C. 1 

Walmsley Lake area: Folinsbee 2 

Yellowknife greenstone belt: Henderson, J. F. 3 

Ontario: Hurst 1

Crow River area: Chisholm 5 

Echo Township : Armstrong, H. S. 

Gullwing Lake-Sunstrum area : Harding, W. D. 2

Kenogami Lake area: Thomson 1 

Kirkland Lake area : Savage, W. S. 

Mississagi road area: Harding, W. D.

3

Olden-Bedford area : Harding, W. D. 1 

O'Sullivan Lake area : Moorhouse 2 

Osway Township: Moorhouse 1 

Perth area : Dugas 

Porcupine area: Hogg 

Red Lake area: Chisholm 4 

Skead Township: Hewitt, D. F. 1 

Teck Township : Thomson 1 

Quebec, Beetz Lake area, Saguenay

County : Grenier 1 

Belleterre area, Guillet Township:

Auger 1

Capsisit Lake area : Gilbert, J. E. 3 

Cawatose area : Wahl 

Dasserat Township, northwest: Dawson
372 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Pre-Cambrian Continued 

Quebec Continued

Denholm-Hincks area, Gatineau

County : Mauffette 1 

Duverny and Landrienne Townships,

Abitibi-East County: Weber 

Piedmont area: Canada G. S. 11;

Tremblay 1 

Gabbro Lake area, Huronian : Be"land

2

Grondines area: Lunde 

Gulf of St. Lawrence, Mingan-Aguanish area: Longley 

He'be'court Township, Abitibi-West

County: Graham, R. B. 1 

Lac La Treve area, East County:

Gilbert, J. E. 1 

Lesueur Township, Abitibi-East

County : Graham, R. B. 2, 3 

Maicasagi area, Abitibi-East County :

Imbault 1

Mattagami-Inconnu region : Imbault 2 

Mazarin area, Abitibi-East County:

Tiphane 

Montauban-les-mines area, Portneuf

County: Smith, J. R. 

Razilly map-area: Maurice 

Sagard-Cailleres area : Ross, S. H. 

Senneterre area : Canada G. S. 22 

Taibi Lake area: Belaud 1 

T6miscamie Mts. area, Mlstassini territory : Neilson 

Villebon area: Canada G. S. 24 

Wakeham Lake area, Huronian:

B61and 2 

Waswanipi Lake area, Abitibi-East

County: Blake, D. A. W. 

Saskatchewan, Ile-a-la-Crosse area:

Frarey

Utah, Uinta Basin : Crittenden 

Virginia, Blue Ridge: Bloomer 1, 2 

Wisconsin, Cambrian-pre-C a m b r i a n

boundary: Eaasch 

Prospecting. See Exploration. 

Pseudomorphs, quartz, Oregon : Staples 1 

Pumice, Alaska, Katmai eruption : Fenner 

Pyrite, deposition temperature, spectrographic study of elements: Hawley

3 

Pyroxene, origin, Adlrondacks, New York:

r^aaington

Quartz.

California, olivine basalt: Clark, A. W.

Formation from silicic acid : Birks

Inclusions: Keller 2 

inversion. -<7n.i-intion. geological significance : Keitn

inversion temperature, measurement:

Toder 3

Relation to earth structures: YodeT 3

Nebraska, Bayard : Mitchell, R. S.

New Hampshire, quartz veins in schist: 

Chapman, .C. A. 2

North Carolina, crystals with inclusions : Taber 1

Oklahoma, Wichita Mts., crystals : Polk

Quartz Continued

Oregon, pseudomorphs in petrified wood :

Staples 1

Pennsylvania, Crystal Hill: Lee, O. I. 

Solubility, high temperatures: Morey

In water : Kennedy 3 

Spectrographic analysis : Keller 2 

Synthesis: Hale, D. R. 1, 2 

Quartzite.

Laboratory formation : Fairbairn 1 

New York, southeastern, Delaware aqueduct system : Fluhr 1

Quaternary. See also Glacial geology ; Paleontology, Quaternary. 

Alabama, coastal area, Pleistocene:

Carlston 1

Arctic .America, postglacial submergence : Richards, H. G. 1, 2 

California, Santa Maria district: Woodring 

Florida, Pleistocene shore lines : MacNeil 

Georgia, Pleistocene shore lines: MacNeil 

Great Plains region, Pliocene-Pleistocene

boundary : Stout 1 

Greenland, Disko Bugt: Harder

West: Laursen 

Gulf of Mexico, Pleistocene paleoecology: Deevey

Idaho, Snake River Plains : Bayless 

Iowa, Wisconsin drift, reclassification :

Ruhe 3 

Kansas, Barton County: Latta

Central, Pleistocene drainage: Fent 1 

Northeastern, glacial deposits : Frye 2 

Peoria loess, Pleistocene : Leonard, A. 

B. 2

Pleistocene loess : Frye 3 

Stafford County: Latta 

Kentucky, Jackson Purchase region:

Roberts, J. K. 1 

Labrador: Wenner 

Loess, Mississippi Valley : Leighton 2 

Louisiana, Lower Red River Valley:

Schultz, J. R.

Pliocene-Pleistocene boundary: Russell, R. J. 

Mexico, Becerra formation, Pleistocene :

Arellano 2 

Gulf of California area : Durham 1

Tenoslque ^f0n. Tabasco Province :

Benavides G. 1

Minnesota, Wisconsin drift, reclassification : Ruhe 3

Mississippi, Carroll County: Vestal,

I". El.

Mississippi Klver, Pleistocene co,, rse :

Hobbs

Nebraska, Elkborn River Valley, Pleistocene: Frankfurter

New Mexico, Clovis-Portales area,

Pleistocene: Sellards 

Clovis sites, age: Antevs 2 

New York, Long Island : Perlmutter 

North America: Antevs 1
INDEX 373

Quaternary Continued

North Carolina, Coastal Plain: Richards, H. G. 3

Ontario, Fenelon Township, Pleistocene : Lee, H. A. 

Lake Simcoe district, Pleistocene:

Deane 

Pleistocene glacial drift, radiocarbon

assay: Flint 2

Pleistocene period, length : Lugn 

Pleistocene studies, U. S. Geological Survey : Denny 

Quebec, Lotbiniere region, glacial

ridges: Osborne 3 

Mont Carmel: Osborne 1 

Val-des-Bois area, Champlain Sea

deposits: Mauffette 2 

Rocky Mtn. region, paleosol, pre-Wisconsin : Hunt, C. B. 2 

South Dakota, Pleistocene: Flint 3 

Virginia, Coastal Plain : Roberts, J. K. 3 

Washington, Skagit County : Sceva 

Wisconsin chronology, soil horizons:

Richmond 

Wyoming, Green River Basin, glacial

geology : Blackwelder 1 

Quebec.

Aeromagnetic maps, Arnprior sheet:

Canada G. S. 1 

Clericy area : Canada G. S. 7 

Desboues area: Canada G. S. 10 

Kinojevis area: Canada G. S. 13 

Macamic area : Canada G. S. 16 

Ottawa sheet: Canada G. S. 19 

Taschereau area : Canada G. S. 23 

Geothermal gradients: Misener 

Magnetic map, Southeast Dubuisson

area : Shaw, G. 1

Southeast Vassan area : Shaw, G. 2 

Economic geology.

Capsisit Lake area : Gilbert, J. B. 3

Fiedmont area: Tremblay 1

Gold, Dasserat Township, northwest:

Dawson 

Lesueur Township, Abitibi-East County :

Graham, R. B. 2, 3 

Limestone, Mingan Islands area: Waddington 1

Marl: Waddington 2 

Mattagami-Inconnu 'region : Imbault 2 

Mineral deposits : Dresser 

Structure : Jones, I. W. 

O'Brien gold mine, vein contours and

structural control: Mills 

Peat, Clair peat bog: Risi 

Petroleum, Gasp Peninsula, eastern:

McGerrigle

Trace metals, Amulet mine : Ridclell 

Geologic maps.

Beetz Lake area, Saguenay County:

Grenier 1 

Belleterre area, Guillet Township:

Auger 1 

Capsisit-La Treve area, sketch map :

Gilbert, J. E. 3 

Cawatose area: Wahl

Q u ebec Con tinued

Geologic' maps Continued

Dasserat Township, northwest: Dawson 

Denholm-Hincks area, Gatineau County :

Mauffette 1 

Duverny and Landrienne Townships,

Abitibi-East County: Weber 

Fiedmont area : Canada G. S. 11; Tremblay 1

Gasp6 Peninsula, eastern : McGerrigle 

Grondines area: Clark, T. H.; Lunde 

Gulf of St. Lawrence, Aguanish-Washicoutai Bay area : Claveau 

Mingan-Aguanish area: Longley 

H6b6court Township, Abitibi-West

County: Graham, R. B. 1 

Lac La Treve area, Abitibi-East County :

Gilbert, J. E. 1 

Lesueur Township, Abitibi-East County :

Graham, R. B. 2, 3 

Maicasagi area, Abitibi-East County:

Imbault 1 

Mattagami-Inconnu region, sketch map :

Imbault 2 

Mazarin area, Abitibi-East County:

Tiphane

Mineral deposits: Dresser 

Montauban-les-mines area, Portneuf

County : Smith, J. R. 

Razilly map-area : Maurice 

Sagard-Cailleres area : Ross, S. H. 

Senneterre area: Canada G. S. 22 

Southeast Dasserat area, Temiscamingue

County: Stockwell 2 

Southwest Dassernt area, Temiscamingue County : Stockwell 1 

Taibi Lake area : Beland 1 

Tfimiscamie Mts. area, Mistassini territory : Neilson

Villebon area : Canada G. S. 24 

Waswanipi Lake area, Abitibi-East

County: Blake, D. A. W. 

Historical geology.

Beetz Lake area, Saguenay County:

Grenier 1 

Belleterre area, Guillet Township:

Auger 1 , 

Champlain Sea deposits, Pleistocene,

Val-des-Bois area : Mauffette 2 

Denholm-Hincks area, Gatineau County :

Mauffette 1 

Duvefny and Landrienne Townships,

Abitibi-East County : Weber 

Gabbro Lake area, Huronian : B61and 2 

Gasp6 Peninsula, eastern: McGerrigle 

Grondines area : Clark, T. H.; Lunde 

H6b6court Township, Abitibi-West

County: Graham, R. B. 1 

Lac La Treve area, Abitibi-East

County : Gilbert, J. E. 1 

Lesueur Township, Abitibi-East County :

Graham, R. B. 2 

Maicasagi area, Abitibi-East County:

Imbault 1 

Mazarin area, Abitibi-East County:

Tiphane
374 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Quebec Continued

Historical geology Continued

Montauban-les-mines area, Portneuf

County: Smith, J. R. 

Sagard-Cailleres area: Ross, S. H. 

T6miscamie Mts. area, Mistassini territory : Neilson 

Wakeham Lake area, Huronlan : Belaud

2 

Waswanipi Lake area, Abitibi-East

County: Blake D. A. W. 

Mineralogy.

Hisingerite, Montauban area : Osborne 2 

Pegmatites, La Come Township : Derry

1 

Paleontology.

Eurypterid, Gaspfi County, Devonian :

Russell, L. S. 1 

Fish, Gaspe" County, Devonian : Russell,

L. S. 1

Graptolites: Bulman 1 

Whale, Daveluyville area, Pleistocene :

Laverdiere 

Petrology.

Capsisit Lake area, basic rocks : Gilbert,

J. E. 2

Cawatose area: Wahl 

Dasserat Township, northwest, pre-Cambrian: Dawson 

Piedmont area, pre-Cambriari : Tremblay

1 

Gulf of St. Lawrence, Aguanish-Washicoutai Bay area: Claveau 

Mingan-Aguanish area: Longley 

Lake Albanel region: Grenier 2 

Lamaque mine, ore formation: Smith,

F. G. 

Lesueur Township, southwest: Graham,

R. B. 3 

Razilly map-area : Maurice

' Southeast Dasserat area, Temiscamingue

County : Stockwell, C. H. 2 

Southwest Dasserat area, Temiecamingue Count: Stockwell, C. H. 1

Taibi Lake area: B41and 1 

Physical geology.

Dasserat Township, northwest, structure: Dawson 

GOSpg Peninsula, eastern, structure :

McGerrigle

Quebec City, structure : Auger 2

St, Lawrence earthquake, 1925: Hoasson, E. A. 

Ventifacts, Mont Carmel : Osborne 1

Physiographic geology. 

chubb crater, near Ungava Bay i Meen 2

LOtbinlere region, ridges : Osborne 3

Mont Camel, origin: Osborne 1

Windwork, dunes : Osborne 1 

Radioactive minerals.

Aerial surveying for: Stead 2

Analysis, Geiger methods : Canada Dept.

Mines & Tech. Surveys 

Arctic regions: De Ment 4 

British Columbia, uranium : Stevenson,

2, 3 

 anada : Lang, A. H.

Radioactive minerals Continued

Colorado Plateau, carnotite: Blackman 

General: Bain 1; George, D. R. 

Glossary : Frondel, J. W. 

Greenland: De Ment 4 

Idaho, Coeur d'Alene district: Thurlow 

Missouri, Ste. Genevieve County, carnotite : Muilenberg 

Occurrences, world : Haeberle 1 

Ontario, Sault Ste. Marie area: Kesten 

Pegmatites : Page, L. R. 2 

Saskatchewan: Bichan 1, 2

Goldflelds area, uranium : Stephens

Pitchblende: Conybeare 1

Relation to fractures : Alien, R. B. 

United States: Merritt 

Utah, Antelope Range, uranium : Quigley

Uranium in fossil bone: De Ment 5 

X-ray diffraction data: Arnott 

Radioactivity.

Aerial surveying for : Stead 2 

Colorado, Caribou silver mine: Ridland 

Elzevir batholith, Ontario : Slack 

Geiger counter, highspeed: Rohrer 

Geologic time, measurement: Muench 2 

Georgia, Geiger counter surveys: Lester 1

Granites, distribution : Hurley 1 

Lead ratios of rocks : Muench 1 

Michigan, Northern Peninsula, map:

Stead 1

Mineral content: Marble 1 

Mineral deposits: Keevil 

Missouri, rhyolite porphyry : Damon

Ste. Genevieve County, shale : Muilenberg 

Ocean-bottom sediments, adsorption of

radioelements : Holland 2 

Ontario, Kenora area :' Chisholm 2

Lake Superior, east shore: Nuffleld

Pre-Cambrian rocks : Walter, J. P.

Petroleum exploration: Stothart

^respecting information : De Ment 3 

Round Lake batholith, Ontario : siack

Saskatchewan, Goldflelds area, red

rocks: Conybeare 3

Scintillometer prospecting; Browueii 

1,2

Surface films on minerals : Church 

Wyoming, Sweetwater, agates: Buddhue 3

Rare earths, pegmatites : Page, L. R. 2

Red beds,

Appalachian region, relation tfl Oil OCcurrence : Rlttenhouse

, Colorado, McCoy area: Sheridan

Origin : Krynine 2

Reefs.

Aiberta, Leduc oil field \ Waring

Bibliography : Pugh

Canada, western, petroleum exploration :

Beach

Classification : Sloss 4

Configuration: Link, T. A. 6

Definition: Link, T. A. 1; Twenhofel 2;

Wilson, W. B. 1 

Development: Link, T. A. 1
INDEX 375

Reefs Continued

Gravity anomalies : Pohly

Great Lakes area, Niagaran: Lowenstam 2

Illinois, Niagaran, relation to oil accui mulation : Lowenstam 1 

New Mexico, Capitan reef, Permian:

Adams, J. E. 

Northwest Territories, Pine Point area,

Middle Devonian : Campbell, N. 

Ontario, southwestern, Silurian : Evans,

C. S.

Petroleum formation : Boos, C. M. 

Physical structure: Shrock 

Problems : Harris 

Recent, formation : Ladd

Interpretation: Hoffmeister 

Seismic evidence: Agnich ; Alcock, E. D. 

Texas: Brodie

Capitan reef, Permian: Adams, J. E. 

Pennsylvanian: Richardson, C. B. 

Scurry County : Van Siclen 

Western: Harris

Pennsylvanian: Bartley 1; Keplinger 

Refractories, United States, northwestern:

Kelly, H. J. 

Reptilia.

Alberta, Upper Cretaceous : Sternberg 1 

Diadectes, temporal elements: Olson,

E. C.

Dinosaur National Monument, ColoradoUtah : U. S. G. S. 1

Elasmosaurs, environment and restoration : Shuler

Illinois, Mazon Creek nodules, Pennsylvanian : Gregory, J. T. 1 

Leptoceratops: Sternberg 2 

Montana, turtle, Miocene: Oelrich 

' Oklahoma, dinosaur, Lower Cretaceous :

Stovall 2

Permian, new genus : Stovall 1 

Texas, Cedar Hill, elasmosaur, Cretaceous : Shuler; Welles 

Cope's types : Wilson, J. A. 1 

Tortoise phylogeny : Williams, E. 

Research.

Coal: Cady, G. H.

Geological projects, bibliography : Am.

Geol. Inst. 3

Geomorphic, 1931-49 : Carlston 2 

Paleontologic, publication trend: Simpson 3 

Petrology, experimental, Geophysical

Laboratory : Adams, L. H. 

Rhode Island.

Bibliography : Quinn, A. W. 1 

Geologic maps.

Bristol County, glacial geology : Alien,

W. B. 

Woonsocket area, bedrock: Quinn,

A. W. 2

Surflclal deposits : Quinn, A. W. 2 

Ground water.

Bristol County : Alien, W. B. 

Woonsocket area : Quinn, A. W. 2

Rhode Island Continued 

Historical geology.

Woonsocket area: Quinn, A. W. 2 

Petrology.

Granite, point-counter analyses : Chayes

4 

Physiographic geology.

Bristol County, glacial geology : Alien,

W. B. 

Ripple marks.

Michigan, rock salt, Silurian: Kaufmann, D. W.

Profiles, development: Menard 1 

Utah, Moenkopi formation, Triassic:

Stokes 3 

Rivers.

Colorado River, turbidity currents:

Gould

Flow, relation to geology : Bernhagen 

Haiti, Artibonite River, course: Butterlin 2

James River, Virginia : Stow 

Lower Red River, Louisiana: Schultz,

J. R. 

Mississippi River, Pleistocene course:

Hobbs 

Missouri River, Pleistocene drainage

changes: Flint 1 

Niobrara River, Nebraska, sediment

transportation: Serr 

Shoaling problems: Patterson, C. B. 

Stream channel control: Happ 1 

West Virginia, glacial drainage: Fridley 

Road materials. See Construction materials. 

Rock bursts, sedimentary rocks, stress Interpretation : McKinstry 

Rock creep, earthquakes : Benioff 1, 2 

Rock descriptions. See also Igneous rocks; 

Metamorphic rocks; Petrology; 

Sedimentary rocks. 

Arkose, granitized, Washington : Coombs

2

Augen gneiss, Georgia: Ingram, W. F. 

Canada, Hudson and James Bays, igneous rocks: Je're'mine 

Metamorphic rocks: Je're'mine 

Connecticut, eastern: Foye 

Dacite, Laughlin Peak, New Mexico:

Stobbe

Itacolumite, Georgia: Grant 

Labrador, igneous rocks: Je're'mine

Metamorphic rocks: Jfire'mine 

Mine rock, physical and petrographic

properties: Windes 

Peridotite, Wyoming: Albanese 

Quebec, Fiedmont area: Tremblay 1 

Southern California batholith: Larsen,

E. S. 1 

Volcanics, Parlcutin region, Mexico:

Williams, H. 

Rocks.

Thermal expansion, determination:

Moyd 2

Thermoluminescence: Daniels 

St. Vincent Island, industrial minerals: 

Stacey
376

Salt.

Appalachian region : Ames

Calcium carbonate, Wyoming : Brown,

P. L.

Bvapprites, occurrence : Krumbein 4 

Michigan, Salina formation, ripple

mark : Kaufmann, D. W. 

North Dakota, origin : Grossman 

Saskatchewan, sodium sulf ate : Tomkins 

Washington, Carbonate Lake, sodium

carbonate : Bennett 

Salt domes.

Gulf Coast, continental shelf, oil possibilities : Carsey 

Gulf of Mexico : McGee 

Scale model, construction : McDowell 

Texas, South Liberty dome : Halbouty 

Salvador, El, fossil localities : Lard£ y Larln 

Sand.

Aggregate for concrete, tests : Rexford 

Beach sand, grain-size distribution :

Emery 6

Foundry, properties : Hies 

Indiana, Ohio River formation : Patton,

J. B.

New Hampshire, foundry sands : Meyers 

New York, Staten Island : Ellison, L. A. 

Oklahoma, Canadian River, sorting :

Tanner 2 

Shoestring sands, formation, structure '

Evaus, O. F. 2 

United States, economic beach sands ' 

Cannon, H. B. 

Sand dunes. See Dunes. 

sandstone. See also Construction materials.

Bradford sand, permeability and grain

orientation : Griffiths 

Colorado, Corral Bluffs, sandstone

spindles : Hussey 2 

Front Range, Cretaceous, heavy minerals : Goldstein

Dakota sandstone, origin : Stokes 2 

Georgia, itacolumite : Grant 

Impregnation materials for thin section

study : Lockwood, W. N. 

lOWa, DBS Moines series, Pennsylvanlan :

Clark, R. H. 

Kansas, ciieycnne «n n fin tone Nixon 2 ;

Rose, K. B. 

Tonganoxie Valley, Pennsylvanian :

Uns

NOVa SCOtia, Hantsport area ; Gemdge

Oklahoma, DCS Moines series, petPennsylvanian .- £u°cas 2 

Rush Springs sandstone, Permian;

Davis, L. v. 2

verden sandstone, origin : Evans, o.

Pore-space reduction :

Tennessee, Crab Orchard district ! Gildersleeve 2

Utah, Navajo sandstone : Kiersch 1 

Saskatchewan.

Geologic time, measurement, pitchblende : Ellaworth

Saskatchewan Continued 

Economic geology.

Goldflelds area: Robinson, S. C. 

Petroleum, Lloydminster area : Coons 

Pitchblende, scintillometer survey:

Brownell 1, 2 

Radioactive minerals, Goldflelds area:

Stephens 

Radioactive occurrences : Bichan 1

'Relation to fractures: Alien, R. B. 

Sodium sulfate: Tomkins 

Uranium : Bichan 2

Goldflelds area : James, W. F. 

Zinc, Flin Flon mine : Tanton 1 

Geologic maps.

Goldfields area : James, W. F. 

Ile-a-la-Crosse area : Frarey 

Pine Channel area, Lake Athabaska district : Mawdsley 

Historical geology.

Cretaceous : Russell, L. S. 2 

Tertiary : Russell, L. S. 2 

Mineralogy.

Goldflelds area : Robinson, S. C. 

Pitchblende, metamict: Conybeare 1 

Paleontology.

Tertiary mammals: Russell, L. S. 3 

Petrology.

Goldflelds area, red radioactive rocks:

Coriybeare 3

Ile-a-la-Crosse area : Frarey 

Pine Channel area, Lake Athabaska district, pre-Cambrian : Mawdsley 

Scaphopoda. See also Mollusca.

Mexico, Miocene: Alencaster-Ibarra 1 

Schist.

Pennsylvania, Wissahickon schist, petfOfabric study : Ch'ih

South Dakota, Fourmile area, alteration

near pegmatites : Lang, A. J. 

Sedimentary fades. See Facies. 

Sedimentary petrology.

Albite, authigenic, Green River shale, 

Colorado : Moore, F. E.

Authigenic minerals, West Virginia 

sandstones: Heald, M. T. 4

Beach sand laminae, grain-size distribution I Emery 6

Bedford sand, permeability and grain

orientation : Grimths 

A Classification of sedimentary rocks:

Dapples 

Cretaceous sandstones. Front Range,

Colorado: Goldstein

civjided bedding, origin: Kuenen 3

Illinois, E-re<Sooitt ooilte - <3,-ttt 3

Iowa, Des Moines series, Pennsylvania.* =

Olark, R. H. 

Mineral particles, Initial 8Hape: Ailing

Missouri, Perry Farm shale '. Kcller 5

Nomenclature : Qolamnr, Sand analysis, Emery settling tube:

Poole 

Sandstone, pore-space reduction: Taylor, J. M. 

Triassic sediments, Connecticut: Krynlne 1
INDEX 377

Sedimentary rocks. See also Petrology: 

Rock descriptions; Limestone; 

Sandstone, etc.

Alberta, Edmonton area, Devonian : Im- 

_ perial Oil, Ltd.

Bradford sand, permeability and grain 

orientation : Griffiths

British Columbia, clastic sediments, 

origin : Daly, R. A. 2

Classification : Dapples ; Philbrick ; Rodgers 2 ; Trefethen

Colorado, Boulder area: Harding, R. C. 

McCoy area.: Sheridan 

Wellsville area, Paleozoic : Rold 1

Connecticut, Triassic rocks : Krynine 1

Continental slope deposits, criteria: 

Rich 1

General: LeRoy 2

Gulf Coastal Plain, thickness, geophysical evidence: Goldstone

Iowa, Des Moines series, Pennsylvanian : 

Clark, R. H.

Kansas, eastern, Paleozoic : Jewett 

Rice County : Fent 2

Mexico, Jurassic: Elizondo 

Sinaloa : Mina Uhink 1 

Tenosique area, Tabasco Province: 

Benavides G. 1

Mineral particles, initial shape : Ailing

Nomenclature : Rodgers 2

Northwest Territories, Imperial River 

Canyon, Paleozoic: Laudon

Nova Scotia, Cape Breton Island, Horton, Mississippian : Decker, R. W. 

Northern, Horton, Mississippian: 

Decker, R. W.

Pennsylvania, Turnpike area, Paleozoic : 

Cleaves 1

Permeability : Pancher

Porosity : Fancher

Potassium content: Whitehead 2

Radioactivity logging, gamma ray-neutron curve values: McGaha 1

Red beds, origin : Krynine 2

Reservoir rocks, petrophysics : Archie

Sandstone, pore-space reduction : Taylor, 

J. M.

Seismic velocities, field and laboratory 

measurements: Ollphant

Shales, density analysis : Johnson, F. W.

United States, mineral production from : 

McKelvey 3

Uranium content, marine sediments: 

McKelvey 2

Washington, Swauk arkose, granltization : Coombs 2

Yukon, Dezadeash area : Kindle 

Sedimentary structures.

Colorado, Corral Bluffs, sandstone spindles : Hussey 2 

Diastems, recognition, evidence: Frizzell 2

Plattin limestone, Missouri: Larson 1 

Illinois, Brewerville sandstone, Mississippian : Swann 

Interformational folding, Pleistocene 

strata, California : Emery 5

Sedimentary structures Continued

Kentucky, Mississippian,.flow markings :

Rich 2

 Missouri, Aux Vases sandstone, Mississippian : Swann

Ohio, Mineral City area, slumping:

Gray, H. H.

Mississippian, flow markings: Rich 2 

,Ripple marks, Utah, Moenkopi formation, Triassic: Stokes 3

Ripple profiles, development: Menard 1

Sand pockets, Leadville limestone, Star 

Basin area, Colorado: Garrett, 

H. L.

Sink structures, Missouri: Bretz 2

Stylolites, pre-Carr>brian quartzite, 

origin: Conybeare 2; Shaub 2

Unconformities: Stewart, W. A.

Utah, Navajo sandstone, Jurassic:

Kiersch 1 

Sedimentation. See also Erosion.

Aggregate, influence : Rhoades ' Bibliography : U. S. Dept. Agriculture, 

Soil Conserv. Service.

California, Repetto formation, Pliocene : 

Natland 2

Connecticut, Triassic rocks: Krynine 1

Continental slope deposits, criteria: 

Rich 1

Cyclic, Paleozoic: Moore, R. C. 1 ; Wanless 1 

Appalachians: Willard 2

Density currents : Menard 4

Greenland, Kap Oswald area, pre-Cambrian-Cambrian : Schaub

Ground water relations: Foley

Gulf of Mexico, northwest: Phleger 1

Harbor: Caldwell, J. M.

Iron deposits, sedimentary : Tyler, S. A.

Irrigation canals, silting : Golz6

Kansas, Eskridge shale, color significance : Wells, J. D. 

Tonganoxie Valley, Pennsylvanian: 

Lins

Lake Mead, Colorado River : Nichols 

Turbidity currents : Gould

Mexico, Gulf of California: Revelle

Military geology : Whitmore

Mineral particles, settling behavior : Lacabanne

Missouri, Plattin limestone, diastemg, 

Ordovician : Larson 1

Montana, Paleozoic: Sloss 1

Naval problems, application: Russell, 

R. D. 1

Nebraska, Niobrara River, sediment 

transportation : Serr

Ohio, Blue Rock-Salt Creek pool area, 

deltaic, Silurian : Swain

Oklahoma, Canadian River sands : Tanner 2 

Deep Fork of North Canadian River,

flood plains: Harper, H. J. 

Des Moines series, Pennsylvanian:

Scruton

Verden sandstone, origin: Evans,- 

O. F. 3
Sedimentation Continued

Principles, textbook : Twenhofel 1

Processes : Trask 2

Reservoir, measurement : Pry

Roundness' scale : Powers

Sediment movement, relation to current velocity : Menard 3 

Sediment transportation laws : Einstein 

Shoaling problems : Patterson, C. B. 

Shoestring sands, formation, structure :

Evans, O. F. 2

Stream channel control : Happ 1 

Study, use in petroleum exploration :

Link, W. K. 2 

Symposium : Trask 1 

Texas, Pecan Gap chalk, diastems,

Cretaceous : Frizzell 2 

Turbidity currents : Kuenen 3 ; PettiJohn 

Utah, Navajo sandstone, eolian : Kiersch

1

Watersheds : Brown, C. B. 

West Virginia, Silurian limestones,

rhythmic : Ludlum 

Sediments.

Classification : Trefethen

Continental shelf, transportation :

Evans, O. F. 4 

Deep-sea, adsorption of radioelements :

Holland 2

Surface area : Kulp 3 

Grain-size definitions, correlation :

Truesdell 1 

Gulf Coast, Cenozoic : Murray, G. E. 4

Mesozoic : Murray, G. E. 4 

Marine, compaction : Emery 7 

Mexico, Gulf of California : Revelle 

Mississippi Valley : Turnbull 

Openwork gravel, origin : Gary 1 

Size distribution analysis, standardization : Inman, D. L. 2 

Strength, water content, and grain size :

Trask 4 

Submarine, identification by sonic device : LaFond

Submarine movement : Shepard 6 

Foraminiferal evidence : Phleger 3

Transportation, by bubbles : Menard 2

Transportation laws : Einstein

Wave velocity, dependence upon depth

and lithology : West

Seismology. See also Earthquakes.

Applied : Leet 1

Bibliography : Milne, W. G.

Earth crust, seismic investigation 

Tuve 2

Earth waves : Leet 1

Earthquake waves, depth : Gutenberg 3

Low velocity layer : Gutenberg l

Earthquakes, first motions : Byerly 1 

; Anonymous 3

Shallow focus, T phase : Tolstoy

T phase and tsunami prediction :

Ewing 1 

Energy ratios, waves at rock-water

boundary : Ergin 1 

Epicenter location : Bailey, L. F.

Seismology Continued

General: Gassmann ; Gutenberg 2 

Longitudinal waves, earth's core: Denson, M. E. 

Velocities, carbonate rocks: Kiselinger 

Microseisms, short-period, recording

equipment: Volk 1 

Missouri, St. Louis, microseisms : Heinrich, R. R. 3 

P waves, velocities at short distances :

Richter 1

Phase after P phase : Mackle 

Quartz inversion temperature, effect:

Yoder 3 

Rayleigh waves, propagation in oceans :

Ewing 4 

Seismograph, capacity transducer : Bentoff 3

Types : Robertson, F. 

Seismograph recording, magnification :

Ingram, R. E. 

Visual photoelectric : Sulkowski; Volk

2 

South Dakota, Homestake mine, seismic

investigations : Carder 

Strain waves in rock, experimental:

Obert 

Submarine earthquakes, Airy phase:

Press

Surface waves, slow : Byerly 3 

T phase investigations : Leet 3 

Underground vibrations : Walter, E. J. 

United States, 1948 : Roberts, E. B. 

Vibration problems, graphical solution :

Bruce, V.

Volcanic tremor, theory : Omer 

Wave amplitudes, deep-focus earthquakes : Ergin 2 

Wave velocities : Richter 1, 2 

Waves reflected at earth core: Martner 

Serpentine.

Equilibrium relations : Bowen 5 

Structure: Bates 3 

Texas: Barnes, V. E. 2

Shale. See also Oil shale.

Density analysis : Johnson, F. W. 

Eskridge shale, Kansas, color significance ; Wells, J. D. 

Missouri, Perry Farm shale, petrology :

Keller 5

Ste. Genevieve County, radioactive:

Muilenberg

South Carolina: Buie

South Dakota, Pierre shale, nomenclature : Crandell

Uranium content, black shales : McKeivey 2

Shore lines. See also Beaches ; Changes of

level; Glacial lakes; Terraces, 

Engineering pr°Dlem8 Mason, M. A.

Florida, Pleistocene: MacNeil 

Georgia, Pleistocene: MacNeil 

Harbor sedimentation : Caldwell, J. M. 

Michigan, Crystal Lake, submerged 

shelf: Evans, O. F. 1
INDEX 379

Shore lines Continued

Motion during deposition, seismic determination : West 

Oregon, pluvial lakes: Allison 

Processes : Krumbein 1 

Sand migration, pulsational: Krumbein 3

Shoaling problems: Patterson, C. B. 

Shore processes, interpretation, photography for: Shepard 5 

Sierra Nevada, glaciers, recession : Harrison,

A. E. 

Silicates.

Atomic models for teaching : Henderson,

D. M. 1 

Calcium orthosilicate, polymorphism:

Bredig 

Fluorine mica, synthesis : Hatch ; Van

Valkenburgh 

Minor constituents, spectrochemical

analysis: Ahrens, L. H. 1 

Mulllte, synthetic, X-ray investigation :

McAtee

Reaction energy : Gruner 

System, BaO-Al2O3-Si02 : Thomas, R. H. 

CaO-MgO-Al203-Si02 : Osborn 2 

CaSiOs-CaaAloSiCVNaAlSiC^ : Juan 

MgO-Al203-Si02 : Foster, W. R. 

MgO-Al2O3-2CaO.SiO2 : Prince 

Sillcoflagellates : Mandra 

Sills. See also Intrusions.

Idaho, Boundary County, relation to

mineralization : Killsgaard 1 

Oregon, Coast Range : Snavely 

Silt, Alaska, Fairbanks area, eolian origin:

Pfiwe" 1

Silurian. See also Paleontology, Silurian. 

Illinois, Neda iron formation: Workman 1

Indiana: Bsarey 1; Hare 

Michigan, Salina formation, ripple

mark : Kaufmann, D. W. 

Newfoundland, Fogo Island area : Baird,

D. M. 

Northwest Territories, Imperial River

Canyon : Laudon 

Ohio, Blue Rock-Salt Creek pool area,

Medina sand, origin : Swain 

Ontario, southwestern : Evans, C. S. 

Reefs, Great Lakes area: Lowenstam 2 

West Virginia, rhythmic sedimentation :

Ludlum 

Sliver.

British Columbia, vegetation : Warren,

H. V. 1

Colorado, San Juan area: King, W. H. 

Idaho, Boulder Creek district: Kiilsgaard 2 

Idaho, Hailey-Bellevue area : Anderson,

A. L.

Mayflower area: Fryklund 

Triumph-Parker mine area: Kiilsgaard 3

Montana, Park County : Reed, G. C. 

Nevada, Lyon County : Stoddard

Storey County : Stoddard 

Ontario : Reid

Temlskaming area: Reid

Silver Continued

Utah, Silver Reef mining area : Proctor 

Yukon : Bostock

Keno Hill area : Smitheringale 

Sink holes.

British Columbia, Kamloops area:

Buckham 2

Florida : Jordan, R. H. 

Indiana, Lost River: Malott 

Missouri: .Bretz 2 

Montana, Armington : Green, J. R. 

Slate.

Peach Bottom slate, PennsylvaniaMaryland : Agron 2 

Soils.

Alluvial, classification : Happ 3

Classification : Trefethen

Clay minerals, X-ray data: Marel

Conservation, .geology in : Griswold

Erosion pavement: Lowdermilk

Formation : Jenny ; Reiche 1

Identification from airphotos : Parvis

Indiana: Bushnell

Iowa, loess : Riecken

Kansas, Dakota group, Cretaceous:

Thorp 1

Pleistocene: Frye 4 

Lateritic, Cretaceous, Dakota group:

Thorp 1 

Nebraska, Dakota group, Cretaceous:

Thorp 1

Ohio, northeastern, relation to Wisconsin drift: White, G. W. 2 

Origin : Jenny 

Profiles, use in estimating geologic

time: Thorp 2 

Properties, mineralogical factors : Grim

1, 2 

Rocky Mtn. region, paleosol, pre-Wisconsin: Hunt, C. B. 2 

Soil mechanics, geology in : Kaye 

United States, eolian deposits, distribution : Thorp 3

Wisconsin glacial chronology, soil horizons : Richmond 

South Carolina.

Bibliography: Petty 

Economic geology. 

Barlte : Van Horn 

Shales: Buie 

Sillimauite: Teague 

Vermiculite: Hunter, C. E. 

Geologic maps.

Index: Boardman 8 

Shale distribution, sketch map : Bule 

Mineralogy.

Topaz, Brewer mine: Jones, W. H. 1 

Paleontology.

Foramlnifera : McLean 1

Fossil locality, Cherry Grove Inlet:

Jones, W. H. 2 

Physical geology.

Carolina bays, origin : Melton 1 ; Prouty 

Physiographic geology.

Blue Ridge Front, fault scarp: White, 

W. A.
380 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

South Dakota.

Magnetic anomalies: Carlson 

Magnetic surveys: Petsch 

Economic geology.

Fort Randall Dam, artesian conditions :

Johnston, F. T. 

Gold, Homestake mine: McLaughlin,

D. H. 2 ; Noble 1

Lignite, Cheyenne River .Indian Reservation : Denson, N. M. 

Standing Rock Indian Reservation:

Denson, N. M. 

Manganese: Tullis 

Mica, Custer County : Needham 

Geologic mops.

Cheyenne River Indian Reservation:

Denson, N. M. 

Standing Rock Indian Reservation:

Denson, N. M. 

Ground water.

Fort Randall Dam area : Johnston, F. T. 

General: Gries 

Historical geology.

Cheyenne River Indian Reservation:

Denson, N .M. 

Pierre shale, Cretaceous, nomenclature :

Crandell

Pleistocene : Flint 3 

Subsurface formations: S. Dak. G. S. 

Standing Rock Indian Reservation : Denson, N. M. 

Paleontology.

Cat, Oligocene: Macdonald, J. R. 2 

Foraminifera, Jurassic: Loeblich 1 

Petrology.

Fourmile area, pegmatite wall rock, alteration : Lang, A. J. 

Physical geology.

Fort Randall Dam, frost action on Niobrara chalk: Trantina 

Homestake mine, seismic investigations :

Carder 

Physiographic geology.

Lake Dakota, bed : Rothrock, E. P. 

LeBeau quadrangle, glacial deposits:

Mickelson 

Pleistocene drainage changes : Flint 1

Speleology. See Caves.

Spongiae. See Porifera.

Springs. See also Ground water ; Thermal

waters.

Nevada, Steamboat Springs, thermal: 

White, D. E. 2

Thermal, classification: White, D. E. 2

stalactites, mineralogy : Hicks, F. L. 

Stalagmites, mineralogy : Hicka, IT. IL.

Stocks. See also Intrusions.

Montana, Marysville granodiorite stock:

Knopf 2

Stratigraphy. See also Historical geology. 

Appalachian, nomenclature: Woodward 2

Classification of units : Moore, R. C. 3 

Facies analysis : Sloss 3 

Strata thickness terms, scale : Willard 1 

Tertiary, Gulf and Atlantic Coast Plain,

nomenclature: Murray, G. B. 1

Stratigraphy Continued

Value in metamorpbic rock study : Billings 1

Zone, definition : Teichert 

Stream capture. See also Drainage changes.

Haiti, Artibonite River: Butterlin 2 

Streams. See also Rivers.

Appalachians, northern, relation to 

structure: Carlston 3

Pennsylvania, Ridge and Valley province, subsequent streams : Broscoe

Virginia, Ridge and Valley province, subsequent streams : Broscoe 

Structural geology. See also Physical geology.

Lineaments: Kaiser, B. P. 2

Texas, Abilene area, oil field structure:

Abilene Geol. Soc. 2 

West-central, oil field structure:

Abilene Geol. Soc. 1 

Study and teaching.

Augustana College: Fryxell 1

Colorado School of Mines, geophysics : 

Hollister

Demonstration of double refraction: 

Denning

Elementary geology, value of a research 

paper: Myers

Geologic map interpretation : Mackin 2

Geologist career : Anonymous 5 ; Bannerman ; Hutt

Geology for agricultural students: 

Shatter

Geology for engineers : White, G. W. 1

Geology in secondary schools: Eisenberg

Geomorphologists, training: Bryan 2

Geophysical education : Macelwane

Georgia, earth sciences, college curriculum : Prunty

Mineralogy, atomic models : Henderson, 

D. M. 1

Optical mineralogy, models: Chapman,

C. A. 1

Petroleum geologist, qualifications : McCampbell

Photogeology : Tator 1

University of Illinois, aerial photograph collection: Wanless 2

stereoscopic projection : Kuenen 2

Summer field courses, 1950 : Am. Geol.

Inst. 2 

University of Colorado: Cavender

Field geology : Murray, H. F.

West Virginia University, neia course-. 

Maxwell

Geology department : MC.OV.B 

StylOlitCS, Origin, in pre-Canrbriau quartzlte :

Conybeare.2; Shaub 2

Submarine geology.

Atlantic Coast, Seismic refraction measurements : Ewing 3

Atlantic Continental terrace : Kuonen 4

Atlantic Ocean Basin, seismic refraction

measurements: Ewing 2 

Structure: Leet 2 

Atlantic Ocean floor : Emery 2
INDEX 381

Submarine geology Continued

Bottom sediments, identification by

sonic device: LaFond 

California, Cororiado submarine canyon,

topography: Shepard 3 

La Jolla submarine canyon, topography : Shepard 3 

Mugu Canyon : Inman, D. L. 1 

Offshore topography : Lawson 

Phosphorite nodules : Emery 1 

Seismic studies : Raitt 

Southern, bottom samples, data:

Garrison

Offshore, potential oil: Emery 8 

. Submarine canyons : Crowell 2 

Canyons, origin : Emery 3 ; von Engeln 

Continental shelf, origin: Weaver 1 

Sediment transportation: Evans, 0.

F. 4 

Continental slope deposits, criteria:

Rich 1

Continental slopes, origin : Emery 3 

Crustal layering, evidence from Rayleigh

waves : Ewing 4

Deep-sea sediments, adsorption of radioelements : Holland 2 

Surface area: Kulp 3 

General: Kuenen 1 

Greenland, continental shelf, marginal

fault: Holtedahl

Gulf Coast, continental shelf: Carsey 

Gulf of Maine : Chadwick 

Labrador, continental shelf, marginal

fault: Holtedahl 

Mexico, Gulf of California: Shepard 4

Phosphorite nodules : Emery 1 

Ocean basins, structure : Bucher 1 

Ocean floor, seismic investigation : Press 

Sediments, movement: Shepard 6

Foraminiferal evidence : Phleger 3 

U. S. Navy research : Russell, R. D. 2 

Subsurface geologic methods : LeRoy 1 

Sulfur.

Crystal structure : Frondel, C. 4

North Dakota, in lignite: Burr, Magnusson 

Surveys.

Illinois State Geological Survey, activities : Leighton 1 

Ohio Geological Survey : Melvin 

Pennsylvania Geological Survey, duties :

Cathcart, S. H. 2 

U. S. Coast and Geodetic Survey, seismo-

. logic work: Roberts, E. B. 

U. S. Geological Survey, geologist career,

requirements : Bannerman 

Mineral resource work : Lasky, S. G. 2 

Pleistocene studies : Denny 

West Virginia Geological Survey : Price,

P. H. 

Symposia.

Applied geology : Van Tuyl, 'F. M. 

Applied sedimentation : Trask 1 

Columbia River basalts : Wallace 1 

Engineering geology, Berkey Volume: 

Geol. Soc. Am.

Symposia Continued

Future oil provinces, Pacific Coast region : Moody

Geomorphology : Bryan 1

Lead : Dunham 1

Mineral resources, southeastern United 

States: Snyder

Pennsylvania mineral resources: Pa. 

Acad. Sci.

Photogeology : Lundahl

Subsurface geologic methods : LeRoy 1

Subsurface logging techniques: Moore, 

C. A.

Texas, Abilene area, oil field structure:

Abilene Geol. Soc. 2 

West central, oil field structure: Abilene Geol. Soc. 1

Zinc: Dunham 1

Synclines, Peach Bottom syncline, MarylandPennsylvania, deformation : Agronl 

Systems.

BaO-AloO:1 -SiO2 : Thomas, R. H.

Binary, temperature-pressure-concentration diagram : Tunell 1

CaFa-BeF2 : Counts

CaO-MgO-Al203-Si02 : Osborn 2

CaO-MgO-FeO-Si02 : Schairer 1

CaSiOjrCasjAUSiOrNaAlSiOi: Juan

Leucite-SiOs-FeO : Roedder

LiF-MgF2 : Counts

LiF-BeF2, NaF-BeF2 : Roy, D. M.

Li20-Al208-SiO3 : Roy, R.

MgF2-BeF2 : Counts

MgO-Al2O3-Si02 : Foster, W. R.

MgO-Al208-2CaO.Si02 : Prince

Mn3O4 -Fe8O4: McMurdie

NaAlSi808-KAlSi3O8-H2O : Bowen 3

NaAlSiO4-KAlSiO4-SiO2 : Schairer 2

Na20-Si02-H20 : Friedman

PbFo-BeFo: Counts

Silica-water, solubility: Kennedy 3

SiO2-TiO2 : Ricker, R. W.

Spessartite-yttrogarnet, substitution of

aluminum for silicon : Yoder 4 

Talc.

California: Wright, L. A. 1

Silver Lake area : Wright, L. A. 2

Equilibrium relations : Bowen 5

United States, southeastern : Stuckey 1 

Technique. 

Apparatus.

Abrasion hardness tester : Jaggar.

Amplifier for differential thermal analysis : Beck, C. W. 2

Geiger counter, high-speed : Rohrer 

Laboratory power supply : Ives 1

Quartz, inversion temperature measurement : Yoder 3

Rock impregnation: Munyan

Seismograph : Robertson, F. 

Electronic: Volk 1 

Visual photoelectric recording : Sulkowski; Volk 2

Seismograph recording, magnification : 

Ingram, R. E.

Seismometer, capacity transducer : Benioflf 3

980682° 52- -25
382 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Technique Continued 

Apparatus Continued

Sonic device for underwater sediment 

surveys: LaFond

Thermal analysis, differential: Kauffman 1 

Geophysical.

Airborne electrical prospecting: Lundberg 1

Airborne magnetometer : Anonymous 7

Electrical logging: Doll

Electrical resistivity logging, prediction 

of oil production: Milne, W. P.; 

Spradlin

General: Hysom

Gravity data from boreholes: Smith, 

N. J.

Gravity methods : Hammer 2

Ore exploration : Evans, J. H.

Poulter seismic method : Poulter 2, 3

Radioactivity logging: Terry

Review : Kelly, S. F. 1

Scintillometer prospecting: Brownell 

1, 2

Seismic methods, development: Clewell 

2

Seismic refraction profiles, interpretation: Slotnick

Self-potential data, Interpretation: 

YUngul

Underground rock densities, gravimeter

measurements: Hammer i

Ground mater.

Ground water flow, tracing methods:

Kent

Sand aquifers, rate of depletion estimates : Kellogg 

Mapping.

Dip of beds: Campbell, F. F. 1 

Lap-out maps, transgressive sediments : 

Turk 2

Mining geology maps, preparation:

Herness 

Photogeoiogic maps, compilation:

Wasem 

Structural contouring by photogeology :

Desjardins 2 

symbols for geologic maps '. Postel 1

Thickness of beds : Campbell, F. V. 1

Mineral exploration.

Airborne radioactivity survey: stead 2 

Dithizone field test: Chlsholm 1

Geochemical prospecting: Sokoloff 

Gold, prospecting guide : Gardner, H. D.

Z1HC, Boll analysis : Fulton

Abrasion hardness tester :

Amplifier for differential thermal analysis : Beck, C. W. 2

tions: Ireland

Cerussite, field test: Jerome

Clay, infrared absorption : Bray ; Keller

1,3 

Coal seam correlation, spectrographic

ash analysis : Newmarch 

Cone-axis diffraction patterns: Fisher,

D. J. 1

Technique Continued 

Mineralogic Continued

Crystal adjustment, Weissenberg goniometer : Winchell 

Crystal elasticity : Birch 2 

Dark-field stereoscopic microscope :

Ross, C. S. 

Double refraction, demonstration : Denning

Fragment sections : Wagner, W. R. 

Heavy mineral separation : Wagner,

W. R. 

Instrument for grinding parallel sections : Croft 

Iron oxide coatings, removal from mineral grains : Leith, C. J. 2 

Microscope for infrared light : Bailly 2 

Models, atomic, for teaching : Henderson, D. M. 1 

Models, optical mineralogy teaching :

Chapman, C. A. 1

Monochromator : Hurlbut 4

Ore mineral identification, polarization

figures : Cameron, E. N. 1 

Phosphorus test : Mann, V. I. 

Plagioclase composition, X-ray diffrac-

' tion method : Claisse 

Quartz, inversion temperature measurement : Yoder 3 

Refractive index determination : Rosenfeld, J. L. 

Refractive index measurement, mlcaceOUS minerals : Girault

Refractometer for infrared light : Bailly 2 . Specimens, field labeling : Shaub 1 

Fragile, preservation : Foster, W. J.

Spectrochemical determination of. tin 

and indium : Ahrens, L. H. 3

Thin sections : Gibbs ; Wagner, W. R. 

Oriented : Tuttle 1

Triclinic cell constants, nomographs :

Bond

Uranium ores, analysis: Canada Dept. 

Mines & Tech. Surveys

Volume Surface ratios, statistical analysis : Rose, W. D.

Miscellaneous. 

Aerial photographs, dip estimation,

graphic methoa : Miller, v. C 1

Construction of sections of foiaed formations : Stockwell 3

Correlation by resistivity values; ciaudet

Dip and strike, determination, subsurface : Boucher

gtereographic determination -. wai-

'

lace 2

OgiC

Prescott

preparati

Geologic scale models, construction : McDowell 

Geologic time measurement.' AllFSDS,

L. H. 4; Holland 1 

Pleistocene drift, radiocarbon assay :

Flint 2
INDEX 383

Technique Continued 

Miscellaneous Continued

Glacial drift, differentiation, graphic 

method : Ruhe 2

Gold, silver in trees, plants: Warren, 

H. V. 1

Paleotemperatures, determination, oxygen isotope method : Urey 1

Permeability, field tests : Ahrens, T. P. 

Measurement: Fancher

Photogeology : Desjardins 3

Porosity, measurement: Fancher

Stereoscopic projection, teaching: 

Kuenen 2

Strata thickness terms, scale : Willard 1

Subsurface geologic methods: LeRoy 1

Trace metals in rocks: Riddell

Vein contours for showing structural

control of ore bodies: Mills 

Paleontoloffic.

Carbonized compressions, transfer method : Abbott 1

Disintegration of siliceous rocks: Bolli

Foraminiferal correlations, range 

charts: Bursch

Fossil spores, examination : Arnold

Gypsum removal from samples : Nelson, 

D. O.

Instrument for grinding parallel sections : Croft

Invertebrate fossils, storage : Richards, 

H. G. 4

Microfossil sectioning: Levinson 2

Shale disintegration: Layne 

Petroleum exploration.

Aerial photography : Bench ; Brundall

Borehole exploration methods : Cervera 

del Castlllo

Core analyses: Russell, J. E.

Electronic method: Baiter

Fluoroanalysis: De Ment 1

General: Busch ; Hysom

Methods : Eaufmann, G. F.

Mineral alteration studies : Lasky, B. H.

Particle-type well logging: Banks, .T. E.

Permeability, determination: Locke

Petrophysics of reservoir rocks: Archie

Porosity determination : Locke

Radioactivity logging: Kerr, A. J.

Radioactivity logging: Terry 

Interpretation: Bush

Reefs, seismic evidence: Agnich

Subsurface logging techniques : Moore, 

C. A.

Ultraviolet light: De Ment 2

Well logs, standardized system : Maddox, D. C. 

Petroyraphic.

Calcareous rocks, acid etching: Lamar 

Curved surface sections: Ireland

Disintegration of siliceous rocks: Bolli

Fragment sections: Wagner, W. R.

Grain-size measurement: Chayes 3; 

Krumbein 2

Granite, identification by acid treatment : McKinley

Gypsum removal from samples : Nelson, 

D. O.

Technique Continued 

Petrographic Continued

Measurement of intercept distances in

thin section: Chayes C 

Metamorphic rock studies: Billings 3 

Rock impregnation : Lockwood, W. N. ;

Munyan

; Rocks, thermal expansion : Moyd 2 

Sand analysis, Emery settling tube:

Poole

Shale density analysis: Johnson, F. W. 

Shale disintegration : Layne ' 

Size distribution analysis of sediments,

standardization : Inman, D. L. 2 

Thin sections, oriented, preparation:

Tuttle 1

Preparation : Gibbs ; Wagner, W. R. 

Volume surface ratios, statistical analysis : Rose, W. D. 

Photographic.

Electron micrographs, clays: Davis,

D. W.

Microfossils : Fournier 

Seismologic.

Epicenter location : Bailey, L. F.

Seismograms : Burgess

Seismograph recording, magnification:

Ingram, R. B. 

Tectonics. See also Faulting; Folding;

Orogeny; Structural geology. 

Canada, tectonic map : Geol. Assoc. Canada

Notes: Derry 2 

Dominican Republic, Cordillera Central:

Weyl, R. 1 

Geotectonic elements, classification,

evolution: Cady, W. M. 2 

Great Basin : Longwell 1 

Rhythm and synchronism: Umbgrove 

Synclines and island arc structure:

Tanner 1 

United States, southeastern: King,

P. B. 3 . West Indies: Weyl, R. 2 

Tektites.

Age, gas bubbles: Suess 

Physical and chemical data: Hammond 

Temperature. See Earth, Temperature. 

Tennessee.

South Holston Dam : Moneymaker 

Tennessee Valley engineering projects,

geology : Tenn. Valley Authority 

: Economic geology. 

; Building stone, Crab Orchard district:

Gildersleeve 2 

Copper, Ducktown district: Simmons,

W. W.

Ducktown district, geochemical prospecting : Eingman 

Phosphate rock : Burwell, H. B. 

Zinc: Brokaw

Mascot-Jefferson City area : Oder 

Geologic maps.

Ducktown copper district: Simmons,

W. W. 

Ground water.

Tracing flow, cavernous terrain : Eent 

Western: Schneider, R.
384 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Tennessee Continued 

Historical geology.

Cross section, Cretaceous-Tertiary:

Schneider, R. 

Great Smoky Mtn. region : King, P. B.

1, 2 

Physical geology.

Sequatchie anticline, thrust origin:

Rodgers 1 

Tennessee Valley.

Engineering projects, geology: Tenn.

Valley Authority

Terraces. See also Beaches ; Shore lines. 

Alabama, coastal area, Pleistocene:

Carlston 1

Florida, Pleistocene : MacNeil 

Georgia, Pleistocene: MacNeil 

Lower Red River Valley, Louisiana:

Schultz, J. R. 

Nebraska, Elkhorn River Valley,

Pleistocene : Frankf orter 

North America, Atlantic terrace;

Kuenen 4

North Carolina, coastal: Frey 

Texas, Henderson County, Pleistocene:

Stovall 3

Wyoming, Green River Basin: Blackwelder 1

Tertiary. See also Paleontology, Tertiary. 

Alberta: Russell, L. S. 2 

Atlantic Coastal Plain : Spangler 1 

Eocene nomenclature: Murray, G. E.

1 

California, Delta-Mendota Canal area:

Reiche 2

Hungry Valley area: Crowell 1 

Santa Maria district: Woodring

Cuba : Bermadez 1

Dominican Republic, Maim6n-Hatillo 

district: Koschmann 1

Great Plains region, Pliocene-Pleistocene 

boundary : Stout 1

Greenland, igneous, correlation with 

Scotland : Tyrrell

Gulf Coast, Eocene nomenclature : Murray, G. E. 1 

Jacksonian strata: Murray, G. E. 3

Idaho, Snake River Plains : Bayless

Illinois, Henry County, gravel: Horberg 3

Jamaica : Hose

Kansas, Barton County : Latta

Rexroad formation : Hibbard 2 

Stafford County: Latta

Kentucky, Jackson Purchase region!

Roberts, J. K. 1 

Land bridges, types : Haeberle 2 

Louisiana, Gulf Coast oil fields, facies :

Bornhauser

Lower Red River Valley: Schultz, 

J. R.

Pliocene-Pleistocene boundary : Russell, E. J.

Maryland, Brandywine area: Hack 

Southern : Overbeck

Tertiary Continued

Mexico, Cerro Pel6n area, Veracruz:

Benavides G. 2 

Comalcalco well, Tabasco: Alvarez

A., J. 

Gulf of California area: Anderson,

C. A. 2 ; Durham 1 

Moloacan-Ixhuatlan area, Veracruz :

Contreras

Moralillo oil field : Suarez C. 

Poza Rica area, well sections: L6pez

Ramos 1 

Salina Basin, Tehuantepec Isthmus :

Alvarez 3 

Tamaulipas, Oligocene: Meneses de

Gyves 

Tampico-Tuxpan area, Sorites beds,

Oligocene: Lim6n-Guti6rrez 

Tenosique area, Tabasco Province:

Benavides G. 1 

Miocene-Pliocene boundary: Cook, H.

J. 1 

Mississippi, Carroll County: Vestal,

F. E.

Fearn Springs formation : Mellen 

Montana, Bearpaw Mts., Paleocene,

Eocene : Brown, R. W. 1 

Blacktail Deer Creek formation, Miocene : Hibbard 3 

Flaxville gravel: Russell, L. S. 3 

Livingston formation: Richards, P.

W.

Western, faulting: Pardee 

Nebraska, western, structure: Cook, H.

J. 2 

Nevada, Truckee formation, Pliocene

age: Macdonald, J. R. 1 

New Mexico, Rio Grande Depression:

Simpson 1

San Juan Basin : Simpson 1 

North Carolina, Coastal Plain: Richards, H. G. 3

Subsurface strata : Spangler 2 

Oregon, John Day formation : Green, M. 

Pacific Basin : Durham 3 

Panama, Gatun Lake area : Jones, S. M. 

Pliocene fluvial deposits, Cumberland

Plateau : Jillson 1 

. Saskatchewan: Russell, L. S. 2 

Tennessee, western, subsurface cross section : Schneider, R.

Texas, BrazOB County : Mnthews, A. 

A. L.

Troup district: Stenzel 1

Utali, UintaBasin; Williams, M.D.

Virginia, Coastal Plain : Roberts, J. K. 3 

Washington, Skagit County : Sceva 

West Indies, Carriacou Island: Leaner,

 E. ' Wyoming, Beaver Divide area: Van

Houten

Green River formation, Bridger 

Basin : Donovan

Volcanic rocks, petrography: Love 6

Wasatch formation, Bridger Basin : 

Donovan
INDEX 385

Texas.

Abilene area, geothermal gradients:

Jenke 

Photogeology, coastal area : Desjardins

1 

Economic geology.

Abilene area, oil field structure : Abilene

Geol. Soc. 2 

Clay : Stenzel 2

Troup district: Pence ; Stenzel 1 

Delaware Basin : Haigh 

Magnetic survey : Hoylman 

Seismic and gravity survey: McFadden

Natural gas: Bartley 2 

Beddo field: FitzGerald 

Carthage field, Panola County : Wilhelm 

North Snyder oil field, seismic work:

Clayton 1 

Oil fields, west central Texas, structure :

Abilene Geol. Soc. 1 

Palo Pinto reef, porosity : Kerr, A. J. 

Petroleum : Bartley 1, 2

Alexander-Myatt area : Byram 

Bateman Ranch field : Walker, R. Y. 1 

Beddo field : FitzGerald 

Blackfoot field, Anderson County:

Branson

Bronte field : Brown, R. 

Diamond M reef field : Klinger 

Ellenburger formation, Ordovician:

Bartram

Fort Worth Basin : Moorhead 

Good field : Rodan

Gulf Coast, continental shelf : Carsey 

Howard field : Perini 

Humphrey-Gray pool: Martin, B. H. 

Jimburt pool: Tompkins 

Jud pool: Bassett, J. S. 

Meadows field : Shepherd 

Millican field : Bonifield 

North Winters field : Wasselhoeft 

Pardue field : Vickers 

Pegasus field : Shepherd 

Pennsylvanian : Bartley 1 

Roby pool: Barnes, A. B. 

Ross Ranch field : Walker, R. Y. 2 

Rotan field : Perini 

Round Top field : Day 

Scurry County : Van Siclen 

South Haskell field : Edwards 

Susan Peak field : Graham, D. W. 

Todd Deep field : Inibt, R. F. 

Vealmoor field: Taylor, S. J. 

Weinert field : Kerfoot 

Winters pool: Tompkins 

Reefs : Harris ; Keplinger 

Serpentine: Barnes, V. E. 2 

Snyder area,' seismic reflections : Clayton 2

South Liberty salt dome : Halbouty 

Geologic maps,

Brazos County : Mnthews, A. A. L. 

Coal Creek serpentine area : Barnes, V. 

E. 2

Texas Con ti n u ed

Geologic maps Continued 

Houston area : Lang, J. W. 

Llano region, Carboniferous: Abilene

Geol. Soc. 3 ; Plummer, F. B. 

Rio Grande watershed, sketch map:

Griswold

Serpentine deposits: Barnes, V. E. 2 

Sierra Blanca region : West Texas Geol.

Soc.

 Troup district, clay deposits : Stenzel 1 

Ground water.

Atascosa County : Sundstrom 

Gregg County: Broadhurst 

Houston area: Lang, J. W. 

Liberty County : Alexander 

Rio Grande watershed : Griswold 

Historical geology. 

Anadarko Basin, western, subsurface:

Meholin

Blackfoot oil field, Cretaceous : Branson 

Brazos County, Tertiary: Mathews,

A. A. L.

Capitan reef, Permian : Adams, J. E. 

Carthage gas field, Panola County,

Cretaceous: Wilhelm 

Cenozoic, Gulf Coast: Colle 

Cretaceous, Troup district: Stenzel 1 

Cross section, Runnels and Coke Counties, Carboniferous: McFall 

Diamond M reef oil-field, Pennsylvanian : Klinger 

El Paso formation, correlation : Vanderpool 

Ellenburger formation, Ordovician:

Bartram

Fort Worth Basin, Paleozoic : Moorhead 

Franklin Mts. : Nelson, L. A. 

Houston area : Lang, J. W. 

Hudspeth County, Cretaceous : Albritton 

Llano region, Carboniferous : Abilene

Geol. Soc. 3 ; Plummer, F. B. 

Marfa Basin : DeFord 

Mesozoic, Gulf Coast: Colle 

Ochoa series, Permian : Donegan 

Pegasus oil field, section : Anonymous 6 

Pennsylvanian reefs: Richardson, C. B. 

Permian facies : Wheeler, R. R. 4 

Pleistocene terraces, Henderson County :

Stovall 3 

Rockwall area, clastic dikes, origin:

Monroe 

Sierra Blanca region :'West Texas Geol.

Soc.

South Liberty salt dome : Halbouty 

Tertiary, Troup district: Stenzel 1 

Van Horn Mts., Cretaceous : Havard 

Woodford shale, Devonian: Ellison,

S. P. 2 

Mineralogy.

Clay, Troup .district: Pence 

Serpentine: Barnes, V. E. 2 

Paleontology.

Algae, trochiliscids, Devonian : Ellison,

S. P. 1
386 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Texas Continued

Paleontology Continued

Algae-Foraminifera, Permian : Johnson,

J. H. 

Ammonoidea, Barnett formation, Mississippian : Miller, A. K. 5 

Finis shale, Pennsylvanian: Miller,

. A. K. 3 

Brachiopods, Glass Mts., Permian:

Cooper, G. A.

Conodonts, Devonian : Ellison, S. P. 1 

Elasmosaur, Cedar Hill, Cretaceous:

Shuler; Welles 

Foraminifera, Cretaceous: Applin,

E. E. R. 1; Frizzell 1 

Fusulinids, Moran formation, Permian :

Henderson, G. G. 

High Plains, mammals, Quaternary:

Evans, G. L. 

Llano region, Carboniferous : Plummer,

F. B.

Ochoa series, Permian : Donegan 

Ostracoda, Glass Mts., Permian:

Sohn 1 

Helms formation, Mississippian:

Sohn 3 

Platysomus, Permian, King County:

Wilson, J. A. 2 

Pleospongia, Cambrian, San Saba area :

Wilson, J. L. 1

Reptilia, Cope's types : Wilson, J. A. 1 

Rodent, Tertiary : Hibbard 4 

Trilobites, Welge sandstone, Cambrian : Wilson, J. L. 3

Van Horn Mts., Cretaceous: Havard 

Vertebrata, Pleistocene terraces, Henderson County : Stovall 3 

Woouf ord shale, Devonian : Ellison

S. P. 2 

Petrology.

Amphibolites, Van Horn Mts.: Fiawn 

Big Bend National Park : Lonsdale

Physical geology.

Abilene area, oil field Structure :

Abllene Geol. Soc. 2 

Faults, interpretation from seismic reflections: Quarles

Folding, Permian : Wheeler, R. R. 4

Oil flelas, -west central Texas, structure : Abilene Geol. Soc. 1 

Pecan Gap chalk, diastems, Cretaceous :

Reefs : Brodie

Surface buckling, Lenders limestone,

Concho County : Osmond 

Van Horn Mts., thrusting: Havard 

Physiographic geology.

Bolsons, West Texas: West Texas Geoi.

Soc.

Terraces, I'leistoceue, s0nii»r«,o=

County: Stovall 3

Textbooks.

Economic mineral deposits: Bateman,

A. M.

Geochemistry: Rankama 

Geology for Boy Scouts: Am. Assoc.

Petrol. Geol.

Textbooks Continued

Geophysics, exploration : Jakosky 

Igneous petrology : Wahlstrom 1 

Marine geology : Kuenen 1 

Physical geology : Monnett 

Physical geology, laboratory manual:

Mather, K. F. 1 

Sedimentation : Twenhofel 1 

This earth of ours : Wolf e 

Thermal analyses. 

Alunite: Gad 

Aragonite : Gruver 

Carbonates: Beck, C. W. 3; Faust;

Kauffman 1 

Clay : Kauffman 1 

Alunitic : Gad

Fox clay deposit, Utah : Stringham 3 

Georgia: Mitchell, L. 2 

Troup district, TfiXaS : PeDCC 

Differential, .curves : Kauffman 1 

Feldspar, potash-soda : Heald, M. T. 3 

Jarosite : Kulp 1 

Manganese oxides : Kulp 2 

Oxides, hydrous : Kauffman 1 

Phosphate : Kauffman 1; Manly 

Silicates : Kauffman 1 

Sulfates : Kauffman 1 

Volcanic glass : Kauffman 1 

Thermal waters. See also Springs.

Hawaii, Kilauea volcano : Finch 1 

Nevada, Steamboat Springs: White,

D. E. 2 

Thorium.

General: Bain 1 

Minerals : George, D. R.

Glossary : Frondel, J. W. 

Thrusts and thrusting. See also Faulting;

Physical geology. 

Appalachians, southern : Stose 3 

California, Antelope Valley area : Wiese

3

Hungry Valley area: Croweii i 

Low-angle, experiments: Bullock 

Missouri, St. Clair County : Beveridge 

Nevada, northeastern :'Wheeler, H. E. 2

Pennsylvania, Nittany arcli windows :

Fox

Utah, Wasatch Mts., thrust' surfaces;

Christiansen 1

Vermont, northwest, Onk Hill succeSsion, Cambrian : Booth 

Wyoming, Heart Mtn. : Pierce, W. G. Snake River region iEardiey 2

Till.

Kansas, northeastern, glacial deposits:

Frye 2 

Missouri, Columbia, gumbotil origin:

Hseung

Montana, limestone-dolomite content:

TTowixrcI A D 2 ' Nortn DaKota, "iiii.'«»t;».,«-.iu,.: . mtto _

tent: Howard, A, D, 2

Alabama, Coosa County; Keeci, A. H. 

California, Neenach quadrangle; Wiese 2

In mica : Ahrens, L. H. 3 

Mexico, Durango : Smith, W. C.
INDEX 387

Titanium.

General: Pegau

Virginia : Pegau 

Tourmaline.

Electron microscope examination: 

Barnes, W. H.

Oklahoma : Lucas 1 

Tracks and trails.

Michigan, Ajibik quartzite, pre-Cambrian : Faul

Pennsylvanian footprints: Baird, D.

Permian footprints: Baird, D. 

Triassic. See also Paleontology, Triassic.

Ari/ona, popular account: Colbert 3

Colorado, McCoy area : Sheridan 

San Juan Basin : Wengerd 1

Connecticut, sedimentary rocks: Krynine 1

Mexico, Oaxaca Province : Salas

New Mexico, Chama River Valley, Chinle

formation : Colbert 2 

San Juan Basin : Wengerd 1

United States, eastern, correlation : McLanghlin, D. B. 1

Utah, Wasatch Mts. : Scott, W. P.

Virginia, Piedmont province: Roberts, 

J. K. 3

Wyoming, southwest: Kummel 

Trilobita. See also Crustacea; Arthropoda.

Geographic range : Shaw, A. B. 1

Massachusetts, eastern, Cambrian: 

Shaw, A. B. 2

Montana, Big Snowy Mts., Ordovician :

Lochman 3

Little Rock Mts., Upper Cambrian: 

Lochman 2

Ordovician, genotypes : Whittington 1

Pennsylvania, Warrior formation: 

Tasch

Protaspid, Ordovician, ontogenetic development : Ross, R. J.

Ptychopleurites zone, Cambrian : Wilson, J. L. 2

Texas, Welge sandstone, Cambrian : Wilson, J. L. 3

Trinucleus Murchison, nomenclature: 

Shaw, A. B. 3

Virginia, Edinburg formation, Ordovician : Whittington 2

Washington, Metallne limestone, Cambrian : McLaughlin K. P. 1 

Trinidad. See also West Indies.

Foraminifera, Hantkcnina, Eocene: 

Bronniman

Petroleum, Morne Diablo-Quinam field :

Barr 

Tungsten.

California, Tungsten Hills deposits: 

Bateman, P. C.

North Carolina, Cabarrus County:

Jones, J. 0. 

Hamme district: Espenshade

United States, southeastern: Espenshade

Virginia, Hamme district: Espenshade

Twinning.

Diamond: Slawson 1

Feldspar: Laves 1

Microcline : Laves 3

Plagioclase, metamorphic rocks : Turner

2 

Unconformities: Stewart, W. A.

Illinois, Mississippian - Pennsylvanian

unconformity : Siever 2 

Pennsylvania, Kempton area, Ordovician-Silurian : Moseley 

Underground water. See Ground water. 

United States. See also the various states. 

Geologic map, bibliography : Jillson 4 

Gravity map : Lyons 

Guide books, index : Rolshausen 

Rocky Mountain Trench, bibliography:

Howell, J. V. 

Economic geology.

Barite, southeastern states : Kesler 1 

Bauxite, southeastern states : Bridge 

Beach sand deposits, southeastern

states : Cannon, H. B. 

Coal: Searight

Northwestern : Green, S. H. 

Reserves : Averitt 1, 2 : Fieldner 

Western : Parry 

Feldspar, southeastern states : Parker,

J. M.

Kyanite, southeastern states : Furcron 2 

Lead, Mississippi Valley : Behre 2 

Lignite: Selvig

Manganese, southeastern states : Miser 1 

Mica, southeastern states: Jahns 1;

Parker, J. M.

Mineral deposits, classification, southeastern states: Behre 1 

Mineral exploration, southeastern states,

review : Laurence 

Mineral production, by rock classes:

McKelvey 3 

Mineral resources, appraisal: Lasky,

S. G. 2 

Symposium, southeastern states:

Snyder 

Natural gas, depth of occurrence: Cloninger 

Reserves: Am. Gas Assoc.; Am.

Petroleum Inst; McGowen 

Pegmatites, southeastern states: Parker, J. M. 

Petroleum : Ver Wiebe

Atlantic Coastal Plain : Straley 1 

Depth of occurrence: Cloninger 

Future provinces, Pacific Coast:

Moody

Major fields : Heald, K. C. 3 

Reserves: Am. Petroleum Inst.;

Ayres

Rocky Mtn. region : Hager 1 

Pyrophyllite, southeastern states:

Stuckey 1

Radioactive minerals : Bain 1 

Refractory materials, northwestern: 

Kelly, H. J. .
388 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

United States Continued

Economic geology Continued

Sillimanite, southeastern states : Furcron 2

Talc, southeastern states : Stuckey 1 

Tungsten, southeastern states : Bspenshade 

Uranium : Wright, R. J.

Exploration : Merritt 

Vermiculite, southeastern states :

Hunter, C. B.

Zinc, Mississippi Valley : Behre 2 

Ground water.

General : Meinzer 1 ; Sayre 3 

Investigations : Sayre 1 

Southeastern states : Stringfleld

Relation to mining : DeBuchananne 

Historical geology.

Atlantic Coastal Plain : Straley 1

Cretaceous and Tertiary : Spangler 1 

Bentonite, distribution : Baker 

Buckhorn conglomerate, Cretaceous :

Stokes 2 

Colorado River Basin : U. S. Dept. Interior 

Columbia-Snake River plateau, formation : Fenton

Cretaceous, eastern : Stephenson, L. W. 

Cyclic sedimentation, Appalachians,

Paleozoic: Willard 2 

Paleozoic : Moore, R. C. 1 ; Wanless 1 

Dakota sandstone, Cretaceous : Stokes 2 

Niagaran reefs, Great Lakes area :

Lowenstam 2 

Rocky Mtn. region, paleosol, pre-Wisconsin : Hunt, C. B. 2 . 

Shinarump conglomerate, - Triassic :

Stokes 2

Southeastern, tectonics : King, P. B. 3 

Southwest, Castile and Salado formations : Lang, W. T. B. 

Triassic correlation, eastern : McLaughlin, D. B. 1 

tipper Mississippi Valley, Ordovician :

Agnew 1, 2 

Western interior, paleoecology, Jurassic: Imlay 1

Mineralogy.

Clay, reference specimens, microscopic

examination : Main, M. S. 

Occurrence : Kerr, P. F. 8 

Diamonds : Field, D. s. M. 2

Gems : Mclntosh 

Paleontology.

Cretaceous, eastern : Stepfaenacm, r>. W,

Feril fructifications, Carboniferous :

Mamay 1 

Foraminitera, rtychociaaia, J?nicozot c -.

Elias 3

--

nent area; Kapner

Mid-Continent, Bryozoa, Paleozoic palGOecology : Elias 1

Molluscn, Pleistocene : Leonard, A. 

B. 1

United States Continued 

Paleontology Continued

Psaronii, Eastern Interior Basin : Kosanke 2 

Petrology.

Columbia River basalt: Campbell, C. D.;

Wallace 1

Evaporites : Krumbein 4 

Iron range rocks, Lake Superior district,

origin : Tanton 2 

Lignite: Selvig 

Physical geology.

Appalachian mountain system, southern : King, P. B. 3 

Basin and Range province, tectonics:

Longwell 1

Columbia River basalt, structure: Baldwin, E. M. ; Fuller, R. E. 1 

Cordilleran orogeny, Tertiary : Wisser 2 

Earthquakes, 1947 : Murphy 

1948: Roberts, E. B. 

Mississippi Valley : Waterways Expt.

Sta.

Faulting, Mississippi Valley: Waterways Expt. Sta. 

Seismicity zones : Gutenberg 2 

Physiographic geology.

Colorado River Basin: U. S. Dept.

Interior

Columbia River basalt: Baldwin, E. M. 

Eolian .deposits, distribution : Thorp 3 

Glaciers, variation : Matthes 1 

Ice caves, distribution : Merriam 

Pliocene fluvial deposits, Cumberland

Plateau : .Tillson 1

United States Geological Survey. See Surveys. 

Uranium. See also Radioactive minerals;

Radioactivity.

Analysis, Geiger methods : Canada Dept. 

Mines & Tech. Surveys

British Columbia; Stevenson 2, 3 

Canada : James, W. F. ; Lang, A. H.

Reserves : Wright, R. J. 

Colorado, sandstone deposits : Fischer,

R. P.

Deposits, oxidation zones : Everhnrt ?>

Florida, in phosphate: Cathcart, J, B, l

General: Bain 1

Idaho, Coeur d'Alene district, uraninite :

Thurlow 

Minerals : George, D. R.

Glossary: Fromiei, J. w. 

Montana, in moss agate : Dake 4

Northwest Territories, Eldorado mine : 

Jixmes, W. v.

Occurrence: Kimble

World : Haeberle 1 

Ontario, Caim-ay deposit : James, w. F.

Oregon, agate-filled nodules : Dake 2

Prospecting information; DcMent 3

Saskatchewan : Bichan 1, 2

GoldfielclS area : James, W. F.; Robinson, S. C.
INDEX 389

Uranium Continued

Sedimentary rocks, marine, content:

McKelvey 2 

United States : Merritt

Reserves : Wright, R. .T. 

Utah, Antelope Range : Quigley

Marysvale : Fetzer 

Utah.

Iron Springs district, magnetic surveys :

Cook, K. L. 1

Monument Upwarp. photogeologic interpretation : Wengerd 2 

Economic geology.

Coal, Iron County, eastern: Gregory,

H. E.

East Tintic district: Levering 5 

Pluorite : Buranek

Kyanite, Grouse Creek Range: Crawford 3

Lead-zinc, Bingham area : Hunt, R. N. 

Manganese, Daggett Chief deposit: Heim 

Mirnbilite, near Great Salt Lake : Bell,

G. L.

Natural gas : Hager 2 

Clay Basin field : Fidlar 4 

Uinta. Basin : Eardley 1 

Ore metal dispersion, Tintic district:

Morris

Park City district, geochemical prospecting: Gilbert, R. E. 

Pegmatites : Hartley 

Petroleum : Hager 2

Ashley Valley field : Peterson, V. E. 

Potential: Dudley 

Roosevelt field : Miller, .T. R. 

. Uinta Basin : Eardley 1 

Silver, Silver Reef mining area : Proctor 

Uranium, Antelope Range : Quigley 

Geologic maps.

Beryl-Enterprise district, Escalante Valley : Fix

 Central: Spiekor

Iron County, eastern : Gregory, H. E. 

Three Creeks reservoir site : Griswold 

Uinta Mts., north flank, sketch map:

Curtis 

Ground looter.

Escalante Valley : Fix 

Three Creeks dam site : Griswold 

Historical geology.

Canyon Range : Christiansen 2

Central: Spieker

Dinosaur National Monument: U. S.

G. S. 1

Duchesne River Valley : Schnelder, H. 

Eastern, Lower Cretaceous : Stokes 4 

Gunnison plateau : Lehner, R. E. 

Iron County, eastern : Gregory, H. E. 

Jurassic : Hoover

Monument Upwarp, photogeologic interpretation : Wengevd 2 

Paleozoic, southeastern : Bass 1 

Pogonlp-Eureka sequence, Ordovician :

Hiutze

Southeastern, columnar section : Bradish 1

Utah Continued

Historical geology Continued

Split Mountain area, Mesozoic: Untermnnn

Paleozoic: Untermauu 

Uinta Basin : Cliilds : Eardley 1 

Carboniferous : Bissell 

Mesozoic : Stokes 1 

Paleozoic : Crittenden 

Permian : Bissell 

Pre-Cambrian : Crittenden 

Tertiary : Williams, M. D. 

Wnsatch Mts., Triassie : Scott, W. F. 

Wasatch plateau : Lehner, R. E. 

Mineralogy.

Arduinite, Tintic district, discredited:

Stringham 2 

Clay, Fox cla.y deposit, Lake Mts.:

Stringham 3

Epsomite, Tintic District: Meissner 

Gilsonite, Uinta Basin : Murray, A. N. 

Halloysite, Bull Valley district: Crawford 1

Mordenite, Tintic district: Stringham 2 

Nontronite, Bingham : Stringham 4 

Uranium, in fossil bone : DeMent 5

Marysvale : Fetzer 

Paleontology.

Cephalopoda, Confusion Range, Mississippian : Youngquist 2 

Dinosaur National Monument: U. S.

G. S. 1 

Fusuliuidae, Pennsylvanian, Wasatch

Mts. : Thompson, M. L. 

Pisces, Triassie, new species : Schaeffer 

Plant spores, Lucerne valley, Carboniferous : Schemel 1

Trilobita, protaspid, Garden City formation : Ross, R. J. 

Petrology.

Iron Springs district, welded tuffs:

Mackin 3 

Physical geology.

Canyon Range : Christiansen 2 

Central, structure : Spieker 

Potholes, Zion National Park : Spitznas 

Ripple marks, Moenkopi formation,

Triassie : Stokes 3

Sedimentary structures, Navajo sandstone : Kiersch 1 

Solution weathering: Buss 

Uinta Mts., north flank, structure:

Curtis

Wasatch Mts., thrust surfaces: Christiansen 1 

Physiographic geology.

Glaciation, Little Cottonwood Canyon :

Ives 2

Iron County, eastern : Gregory, H. E. 

Valleys.

British Columbia, Lightning Lakes valley : Mathews, W. H. 2 

Colorado, physical features: Powell,

.T. W. 

Formation : Buckham 2
390 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Valleys Continued

Illinois, bedrock valley systems : Horberg 1

Pennsylvania, Susquehanna River 

buried valley, Wilkes-Barre area : 

Ash

Yosemite Valley, California : Matthes 2 

Vanadium, occurrence : Bertrand 

Varves, New Hampshire, map : N. H. State

Plan. Dev. Comm. 

Veins.

Gold-quartz, ribbon structure : Dougherty 

Magnetic anomalies, quantitative interpretation : Cook, K. L. 2 

New Hampshire, quartz veins in schist,

origin : Chapman, C. A. 2 

Origin : Schmitt 3 

Saskatchewan, radioactive occurrences :

Alien, R. B. 

Ventifacts, Quebec, - Mont Carmel : Osborne 1 

Vermont.

Physical features : Jacobs 

Geologic maps.

Bradford-Thetford area : Haclley, J. B. 

Castleton area : Fowler, P. 

Bast-central : White, W. S. 

Northwestern : Booth 

Historical geology.

Bradford-Thetford area : Hadley, J. B. 

Brandon area, Tertiary lignite : Barghoorn

Castleton area : Fowler, P. 

Chazyan : Oxley

East-central, Paleozoic: White, W. S. 

Northwest, Onk Hill succession, Canxbrinn : Booth

Ordovician, Canadian-Chazyan : Kay

Paleontology. 

Brandon area, Tertiary lignite: Barghoorn 

Corals, Ordovician, Montpelier area :

Cady. W. M. 1 

Petrology.

MetamorphoSed' DiafiC (HReS, Woousviiie

quadrangle : Billings 2

Replacement, Barre granite : Chayes 1

Physical geology.

Bradford-Thetford area : Hadley, J. B.

Castleton area : Fowler, P.

Northwest, Oak Hill succession, Cambrian : Booth 

Physiographic geology.

Physical features : Jacobs 

Vertebrata (general). See also Amphibia;

Aves, etc.

Stock 1

Evolution, skeletal: Gregory, W. K. Greenland, East, stegocepnai inns : jar 

1

Migration, Cenozoic ; Burton 2

Vertebrata (general) Continued

New Mexico, Abo formation, Permian :

Romer 1 

Chama River valley, Chinle fauna,

Triassic : Colbert 2 

San Juan Basin : Colbert 2

Tertiary, f aunal list : Simpson 1 

Oregon, near Pendleton, Tertiary :

Sargent

Origin : Robertson, G. M. 

Texas, Henderson County, Pleistocene :

Stovall 3 

Use in dating formations : Schultz,

C. B. 2 

Wyoming, Green River Basin, Tertiary :

McGrew 

Virgin Islands. See also West Indies

St. Croix, stratigraphy, ground water,

and geologic map : Cederstrom 2 

Virginia.

James River Basin : Roberts, J. K. 2 

Economic geology.

James River Basin : Roberts, J. K. 2 

Petroleum, Jonesville district : Miller,

R. L. 1

Piedmont province : Brown, W. R. 

Titanium : Pegau

Tungsten, Hamme district : Bspenshade 

Valley and Ridge province : Edniundson 

Zinc, Austinville district : Oder 

Geologic maps.

Jonesville district : Miller, R. L. 1 

Love area, sketch map : Bloomer 2 

Oronoco area, sketch map : Bloomer 2 

Riverton area, sketch map : Shainin 

Valley and Ridge province : Edmundson 

Ground water.

Coastal Plain : Cederstrom 1 

Historical geology.

Blue Ridge, Albemarle County area : 

Nelson, W. A.

Cambrian : Bloomer 1, 2

Pre-Cambrian : Bloomer 1, 2 

Coastal Plain : Roberts, J. K. 3 

Cretaceous strata : Spangler 1 

James River Basin : Roberts, J. K. 2

JonesvillG district i Mi»p-r, B- L- !

Piedmont province : Brown, W. R.

Trinssic : Roberts, J. K. 3

Tertiary strata : Spangler i

Valley and Ridge province, Paleozoic :

Mineralogy.

Babingtonite : Cosminsky 

Paleontology.

Foramiuifera : McLean 1

TrilObitCS, Eclinbm-g formation, Ordovician : Whittiugton 2

f-1,;j»l<;.,T. vcvlv.ov. Blue Ridge, Aibemane county area.

structure : Nelson, W. A. 

Fractures, Athens limestone, Riverton . 

Shainin
INDEX 391

Virginia Continued 

Physiographic geology.

Blue Ridge Front, fault scarp: White,

W. A.

James River: Stow 

Streams, subsequent, Ridge and Valley

province: Broscoe. 

Volcanic ash.

Mexico, Parfcutin area, erosion : Segerstrom

St. Vincent Island : Stacey 

Volcanic glass, California, perlite : Chesterman

Volcanic rocks. See Igneous rocks. 

Volcanism.

Alaska, Aleutian arc : Coats

Katmai eruption, chemical kinetics:

Fenner

Arizona, Grand Canyon area: Maxson 1 

California, Toowa Valley : Webb 

Columbia-Snake River plateau, northwestern United States : Fenton 

General: Perret 

Hawaii: Perret 

Hawaii, Puehu cinder cone, origin:

Macdonald, G. A. 2 

Martinique : Perret 

Mexico, Parfcutin Volcano: Fries 2:

Ord6nez

Water vapor measurement: Foshag 

Oregon, John Day region, Miocene:

Thayer

Rock creep : Benioff 2 

Volcanic tremor, theory : Omer 

West Indies, Caribbean volcanic arc:

MacGregor 

Volcanoes.

Alaska, Aleutian arc: Coats

British Columbia, Mount Garibaldi:

Mathews, W. H. 1 

Guatemala : Dozy 

Hawaii, Kilauea, thermal water : Finch

1

Volcanic tremor: Omer 

Mauna Loa, eruption, 1949: Macdonald, G. A. 1

Earthquakes: Finch 3 

Eruption, June 1950 : Finch 2, 5 ;

Macdonald, G. A. 3 

Mexico, Parfcutin : Derruau ; Fries 2 ;

Ordfiuez : Pough ; Williams, H. 

Bibliography : Hatt 

West Indies, Guadeloupe, Soufriere:

Bruet 

Washington.

Ross Dam, vibration studies: Coombs 1 

Seattle, landslide problem, engineering

geology : Mackin 1 

Economic geology.

Celestite, Fidalgo Island: Caldwell,

W. E. 

Iron : Zapffe

Blewett deposit: Lamey 

Nickel, Blewett deposit: Lamey

Washington Continued

Economic geology Continued

Petroleum, potential: Etherington 

Sodium carbonate, Carbonate Lake:

Bennett 

Stroutianite, Fidalgo Island : Caldwell,

W. E. 

Geologic maps.

Blewett iron-nickel deposit: Lamey 

Skagit County : Sceva 

Ground water.

Skagit County : Sceva 

Historical geology. 

Permian : Danner 

San Juan Islands, Cretaceous : Bradley,

J. S. 

Skagit County, Quaternary : Sceva

Tertiary : Sceva 

Mineralogy.

Gems : Dake 1; Fernquist 

Mackinaw nickel mine : Milton 2 

Mineral collecting: Dake 1

Forest: Powell, R. D. 

Okanogan Valley : Dysart 

Paleontology.

Cambrian, near Addy : Okulitch 5 

Foraminifera, Willapa River Valley,

Tertiary : Ran

Fusulinids, Permian : Danner 

Paleozoic fauna, northeastern area : McLaughlin, K. P. 2

Trilobita, Metaline limestone, Cambrian : McLaughlin, K. P. 1 

Petrology.

Granitization, Okanogan Range: Goldsmith, R.

Swank arkose : Coombs 2 

Physical geology.

Columbia River basalt, joints : Trimble 

Earthquake, April 1949 : Nuttli 

Mt. Rainier, ice cavern : Potts 

Olympic Peninsula, volcanics, structure :

Park 

Physiographic geology.

Columbia River basalt, channel pattern :

Trimble

Okanogan Valley : Dysart 

Skykomish Valley, glaciation : Gary 2 

Wenatchee area, glaciation : Long 

White River Valley, glaciation : Anderson, N. R. 

Water. See also Ground water.

Content of granitic magma : Injrerson 

Measurement of water emitted by volcanoes : Foshag ' 

Pressure-volume-temperature relations :

Kennedy 1 

Weathering. See also Erosion.

Colorado, Corral Bluffs, sandstone

spindles : Hussey 2 

Exfoliation : Howard, A. D. 1 

Plagioclase feldspar, rate : Graham, E. R. 

Processes and products : Reiche 1 

Utah; southwestern: Buss
392 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

West Indies. See also the various islands

and countries. 

Seismic waves: Coulomb 

Economic geology.

Industrial minerals, St. Vincent Island :

Stacey 

Geologic maps.

Carriacou Island : Lehner, E. 

Ground water.

Carriacou Island : Lehner, B. 

Historical geology.

Carriacou Island : Lehner, E. 

Physical geology.

Caribbean volcanic arc, activity : MacGregor 

Dominican Republic, Cordillera Central,

tectonics: Weyl, R. 1 

Lesser Antilles, volcanism, prediction :

MacGregor

Souf riere Volcano, Guadeloupe: Bruet 

Tectonic zones : Weyl, R. 2 

West Virginia.

Bibliography, Cambrian system: Woodward 1

West Virginia Geological Survey : Price,

P. H.

West Virginia University, geology department : Moebs 

Field course: Maxwel] 

Economic geology. 

Natural gas : Reeves 

Petroleum: Reeves 

Geologic maps.

Alvon area : Maxwell

Cambrian, Sketch map : Woodward 1

Historical geology.

Alvon area, Paleozoic : Maxwell 

Cambrian : Woodward 1 

Paleozoic: Reeves

Silurian, limestones, rhythmic sedimentation : Ludlum 

Southeastern, Mississippian: Wells, D.

Mineralogy.

Authigenic minerals in sandstones:

Heald, M. T. 4

Paleontology. 

Eurypterida, Wills Creek formation, SiFaunal list, Denmar formatic

sippian : Wells, D. 

formation,

Wells, D. 

Petrology.

Authigenic minerals in sandstones : Heald, M. T. 4 

Physical geology.

Folding, Paleozoic ; Reeves

Potomac Kiver Valley, deformation

Glacial drainage: Fridley

d -wort.

Alaska, Fairbanks area, eolian silt;

Quebec, Mont Carmel, dunes, v

Osborne 1 

United States, eolian deposits, distribution : Thorp 3

Wisconsin.

Bayfleld group, Cambrian-pre-Cambrian

boundary : Raasch 

Glacial Lake Merrimac, Baraboo area:

Bretz 1 

Franconia formation, Cambrian: Bell,

W. C. 2 

Ripon-Fond du Lac area, electrical

resistivity survey : Spicer 

Wyoming.

Guidebook, southwest Wyoming: Wyo.

G.eol. Assoc. 1 

Economic geology.

Calcium carbonate : Brown, P. L. 

Coal, Kemmerer field : Hunter, W. S.

Reserves : Averitt 2 ; Berryhill 

Natural gas, Baxter Basin fields : Fidlar 2

Church Buttes field : Fidlar 3 

Cretaceous strata : Love 5 

Lander area : Thompson, Raymond M. 

Newcastle sandstone: Summerford 

Penetration chart for gas wells : Wyo.

Geol. Assoc. 2 

Southeastern Wyoming, penetration

chart: Wyo. Geol. Assoc. 3 

Pegmatites: Hanley 

Petroleum, Aspen field: Hauptman 

Cretaceous strata: Love 5 

LaBarge field: Christensen 

Lander area : Thompson, Raymond M. 

Newcastle sandstone: Summerford 

Penetration chart for oil wells : Wyo.

Geol. Assoc. 2 

Powder River Basin : Rea

Southeastern Wyoming, penetration

chart: Wyo. Geol. Assoc. 3 

Spring Valley field : Hauptman 

Sulphur Creek field : Hauptman 

Phosphate: Cochran 1 

Geologic maps.

Albany County: Love 1

Beaver Divide area : Van Houten 

Bridger Basin : Donovan

Cumberland Reservoir-Little Muddy

creek area! Walker, C. L. Lander area; Thompson, Raymond M.

Laramie Basin : Littleton 3

Southwestern : Love 2

Wheatland Flats area : Littleton 1

Wind River Its., soutirat BP*I Pale°-

zoic : Love 3

Ground water.

Gillette area : Littleton 2 

Laraniie Basin : Littleton 3 

Wheatland Flats area : Littleton 1

Historical geology.

Beaver Divide area, Tertiary: Van

Cambrian paieoecoiogy ; LochmM i

Cross section, Upper Cretaceous, southwest tO TcllOTTBUOUC I-wrli ; Lovo 4

Gillette area, Tertiary : Littleton 2 

(flgeU UlrOF BBSS?; v-^ oioe^u,

log : Burton 

Green River formation, Eocene, Bridger

Basin : Donovan
INDEX 393

Wyoming Continued

Historical geology Continued

Jurassic, Green River Basin : Imlay 2

Lander area : Thompson, Raymond M.

Laramie Basin : Littleton 3

Montana group, Upper Cretaceous, Rock 

Springs uplift: Hale, L. A.

Newcastle sandstone, facies: Summerford

Paleozoic, southwest: Thomas, H. D. 

Wind River Mts., southwest flank: 

Love 3

Snider Basin area, Mesozoic: Woodbury

Sweetwater Valley : Bell, W. G.

Tongue River area, Bighorn Mts.: Zakis

Triassic, southwest: Kummel

Volcanic rocks, Tertiary, correlation by 

petrography : Love 6

Wasatch formation, Eocene, Bridger

Basin : Donovan 

Mineralogy.

Agate, Sweetwater, radioactivity : Buddhue 3

Gems: Dake 1

Mineral collecting : Dake 1

Searlesite; Fahey 2

Stove Creek meteorite, discredited: 

Crawford 2

Trona: Brown, P. L. 

Paleontology.

Atrypa, new species, Devonian: Kottlowski 1

Flora, Yellowstone National Park, Tertiary : Beyer

Foramiriifera, Jurassic: Loeblich 2

Green River Basin, Tertiary vertebrates : McGrew 

Petrology.

Peridotite, Laramie Mts.: Albanese

Sandstone, pore-space reduction: Taylor, J. M.

Volcanic rocks, Tertiary : Love 6 

Physical geology.

Bear tooth Mts., features caused by 

frost: Smith, H. T. U. 3

Bighorn Mts., Cretaceous uplift: 

Hunter, L. D.

Flat Top anticline : Carey

Green River Basin, structure : Fidlar 1

Heart Mtn. thrust: Pierce, W. G.

Lander area, structure: Thompson, 

Raymond M.

Laramie Range,. arcuate folds and 

faults : Barlow

Snake River region, thrusting : Bardley 

2

Sweetwater Valley : Bell, W. G. 

Physiographic geology.

Green River Basin region: Knight 

Glaciation : Blackwelder 1

Teton Mts., glaciers, aerial survey: 

Miller, M. M. 1

Wind River Mts., erosion surfaces: 

Holmes, G. W.

X-ray investigations. 

Albite: Laves 2 

Aragonite: Gruver 

Asbestos: Beatty 

Chromium mica: Kauffman 2 

Clay: Kerr, P. F. 4

Fox clay deposit, Utah: Stringham 3 

Troup district, Texas : Pence 

Clay minerals, Laramie formation,

Golden, Colorado: Gude 

Cone-axis diffraction patterns : Fisher,

D. J. 1 

Crystal symmetry determination:

Buerger 2 

Euxenite: Arnott 

Feldspars, synthetic, gallium and

germanium in : Goldsmith, J. R. 

Geocronite : Kauffman 2 

Glaucodot: Kauffman 2 

Jarosite : Kulp 1 

Kotschubeite : Kauffman 2 

Manganophyllite: Kauffman 2 

Mullite, synthetic: McAtee 

Parkerite: Peacock 1 

Pearls: Wild 

Pitchblende, Saskatchewan: Conybeare 1

Plagioclase, composition: Claisse 

Plumbojarosite: Kauffman 2 

Pseudomalachite : Kauffman 2 

Pyromorphite : Kauffman 2 

Radioactive minerals: Arnott 

Selenides : Barley 

Shandite : Peacock 1 

Soil clays, minerals : Marel 

Uranothorite : Pabst 2 

Yukon.

Alaska Highway, terrain study : Raup 

St. Ellas Range, bedrock: Odell 1, 2 

Economic geology. 

Coal: Bostock 

Gold : Bostock

Lead, Keno Hill area: Smitherlngale 

Mineral resources: Bostock 

Silver, Keno Hill area : Smitheringale 

Geologic maps.

Dezadeash area: Kindle 

Galena Hill: McTaggart 

Keno Hill: McTaggart

Sketch map : Smitheringale 

Mineralogy.

Mineral occurrences : Thompson, Robert

M. 1 

Paleontology.

Coral, new genus, Carboniferous:

Harker 

Graptolites, Ordovician, Pelly Mts.:

Decker, C. E. 2 

Petrology.

Dezadeash area: Kindle 

Physiographic geology.

Seward ice field: Sharp 1, 2 

Zeolites.

Luminescence: Claffy 

Maryland, Baltimore: Kepper
394 ANNOTATED BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, 1950

Zinc.

Arizona : Wilson, E. D. 2

Aravaipa district: Wilson, E. D. 4 

Bagdad area: Anderson, C. A. 1 

Bisbee district: Hogue 

Globe-Miami district: Peterson, N. P. 

Iron King area: Creasey, S. C. 2 

Johnson Camp area: Cooper, J. R. 

Pima district: Wilson, E. D. 3 

St. Anthony area: Creasey, S. C. 1 

Superior area: Wilson, E. D. 5 

Wallapai district: Dings

British Columbia, Salmo area : Little 

Sullivan mine : Swanson

Colorado, Aspen district: Volin 

San Juan area: King, W. H.

Geochemical prospecting, tests : Sokoloff

Idaho, Boundary County: Kiilsgaard 1 

 Coeur d'Alene district: Shenon

Triumph-Parker mine area: Kiilsgaard 3 

Lead-zinc replacement deposits : Brown,

J. S. 3 

Kansas, Picher field, mineralization:

Lyden 1, 2

Manitoba, Flin Flon mine : Tanton 1 

Sherritt Gordon mine: Tanton 1 

Mexico : Gonzalez Reyna 2 

El Bote mine area, Zacatecas: Mapes

Vasquez 

Taxco district: Fowler, G. M. 1

Zinc Continued

Mississippi Valley : Behre 2

Nevada, Pioche district: Young

New Jersey, Franklin-Sterling area:

Finger 

New Mexico, Central mining district:

Lasky, S. G. 1

Houston-Thomas prospect, gravity investigations : Barnes, V. E. 1 

Royal John deposit: Soul6 

Santa Rita area, trace-element

studies: Graf 2 

Oklahoma, Picher field, mineralization :

Lyden 1, 2 

Ontario : Thomson 3 

Prospecting, soil analysis: Fulton 

Quebec, Montaubau-les-mines area Portneuf County : Smith, J. R. 

Saskatchewan, Flin Flon mine: Tan-

' ion 1

Symposium : Dunhani 1 

Tennessee, eastern : Brokaw

Mascot-Jefferson City area : Oder 

Tri-State district, biogeochemical investigations : Harbaugb 

Utah, Bingham area : Hunt, R. N. 

Virginia, Austinville district: Oder 

Zircon.

Oklahoma: Lucas 1

Ontario, Renfrew County : Field, D. S. 

M. 1

O