Annotated Bibliography of Studies 

on the Geology, Geochemistry, Mineral 

Resources, and Geophysical Character 

of the Early Mesozoic Basins of the 

Eastern United States, 1880-1984 

By JACOB MARGOLIS, G. R. ROBINSON, JR., and 

C. M. SCHAFER 

An annotated bibliography covering early Mesozoic 

geology of M assachusetts, Connecticut, New jersey, 

Pennsylvania, Virginia, Maryland , North Carolina, 

and other Eastern States. Bibliography is indexed 

by author, topic, and geographic area 

U.S. GEOlOGICAl SURVEY BUllETIN 1688 
DEPARTMENT OF THE INTERIOR 

DONALD PAUL HODEL, Secretary 

U.S. GEOLOGICAL SURVEY 

Dallas L. Peck, Director 

UNITED STATES GOVERNMENT PRINTING OFFICE: 1986 

For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 

Federal Center, Box 25425, Denver, CO 80225 

Library of Congress Cataloging-in-Publication Data 

Margolis, jacob. 

Annotated bibliography of studies on the geology, 

geochemistry, mineral resources, and geophysical character 

of the early Mesozoic Basins of the eastern United States, 

1880-1984. 

(U.S. Geological Survey bulletin ; 1688) 

Bibliography: p. 1-492 

Supt. of Docs. no.: I. 19.3: 1688 

1. Geology, Stratigraphic-Mesozoic-Bibliography. 2. 

Geology-Northeastern States-Bibliography. 3. GeologyMiddle Atlantic States-Bibliography. I. Robinson, G.R. II. 

Schafer, Constance M. Ill. Title. IV. Series: U.S. Geological 

Survey bulletin ; 1688. 

QE75.B9 no. 1688 [Z6033.S8] 557.3 s 86--600147 

[QE675] [016.5517'6'0974] 
CONTENTS 

Introduction 1 

Annotation 1 

Indexing the bibliography by area, keyword, and map type 4 

How to use the bibliography-An example 4 

Acknowledgments 5 

Reference cited 6 

Geographic-area index 1-1 

Subject index 2-1 

Map-type index 3--1 

Bibliography 1 through 492 

FIGURE 

1. Map showing exposed basins of the Newark Supergroup in Eastern 

North America 3 

TABLES 

1. Alphabetical listing of keyword file used in annotating the 

bibliography 2 

2. Organization of bibliography indexes by area, keyword, and map-type 

categories 5 

Contents Ill 

Annotated Bibliography of Studies on the Geology, 

Geochemistry, Mineral Resources, and Geophysical 

Character of the Early Mesozoic Basins of the 

Eastern United States, 1880-1984 

By Jacob Margolis, G.R. Robinson, Jr., andC.M. Schafer 

INTRODUCTION 

This bibliography is an annotated list of references 

pertaining to the geology, stratigraphy, lithology, petrology, 

geochemistry, mineral resources, and geophysical character 

· of the early Mesozoic basins of the Eastern United States. 

The list has been restricted by excluding references on 

paleontology and paleobotany which are descriptive in nature and which do not apply to stratigraphic correlation. The 

coverage focuses on references pertaining to the onshore and 

offshore early Mesozoic geology of Massachusetts, 

Connecticut, New Jersey, Pennsylvania, Virginia, Maryland, North Carolina, and South Carolina, although references covering areas in other Eastern States are included. In 

addition , selected references of a regional or global nature 

and references covering Mesozoic geology in the Maritime 

Provinces of Canada, the United States Gulf Coast, northwest Africa, and Western Europe are included where comparison is applicable to the Eastern United States Mesozoic 

basins. 

This bibliography covers a period from approximately 1880 to 1984. Information available prior to 1880 

is included for a few major references of historic significance, but coverage is incomplete. An extensive bibliography of references available prior to 1892 is given in 

Russell (1892). The reference coverage for 1984, when 

the library search was terminated, is incomplete. With few 

exceptions, copies of all articles were used to prepare the 

annotation. When an article was not available, such as 

many unpublished master's theses, the reference is included without a summary section in the annotation. 

Evaluating the quality of the data given in the cited 

references is beyond the scope of this report. This bibliography is designed as a practical tool for geoscientists 

studying the Eastern United States early Mesozoic basins; 

it is intended to identify data sources that can be used to 

assess the breadth of existing information, to identify deficiencies in data, and to plan future research efforts. The 

bibliography is a first step toward evaluating the adequacy 

of existing geologic and geophysical map coverage, identifying sources of information regarding existing drill-hole 

and water-well coverage, and identifying information on 

geochemical anomalies, anomalous mineral occurrences, 

prospects, and mines. 

The annotated bibliography presented here was 

largely compiled and annotated by Jacob Margolis. The 

annotation system was developed by G.R. Robinson, Jr., 

who assisted with the compilation, annotation, and editing 

of the data file. C. M. Schafer developed computer 

routines to sort the data file and entered the data into the 

computer file. Financial support for this work came from 

the Strategic and Critical Minerals Research Program of 

the U.S. Geological Survey. 

ANNOTATION 

The annotated citations are listed alphabetically by 

author in the bibliography section. The annotation consists 

of information in six categories: (1) type of information, 

(2) summary, (3) keyword abstract, ( 4) geographic area of 

coverage, (5) map, and (6) data. 

Each citation in the / bibliography is assigned a sequential reference number that is used to index the bibliography by area, keyword, and map-type categories. A 

code letter immediately following the reference number 

indicates the type-of-information category of the citation. 

The five remaining categories of information are presented 

sequentially below the reference citation. 

Type of information.-Each reference is categorized 

as a paper, field guidebook, thesis, abstract, and (or) map. 

More than one type-of-information classification may be 

Introduction 
given to an entry. The map classification is given to publications providing accurate information in a map format 

having a defined scale and location of cultural and physiographic features. The type-of-information classification 

is identified by the alphabetical code immediately following the reference number at the beginning of each citation: 

Type ofinformation Code 

Paper - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _ p 

Abstract - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A 

Map - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - M 

Field guide - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - F 

Thesis - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - T 

Summary.-The summary is a short paragraph describing the topics covered by the reference, types of data, 

and important conclusions or observations. In the case of 

lengthy reports, the summary outlines the topics covered, 

with less emphasis on specific conclusions. Map references having minimal accompanying text do not have a 

summary section provided in the entry. In addition, a 

summary is not provided if a copy of the publication was 

not available for annotation (for example, most master's 

theses). Several abbreviations are used in the summary 

section. They are Fm(s) for formation(s) and directional 

abbreviations such as NW for northwest and SE for southeast. No effort has been made to evaluate the quality of 

data; however, the summary may refer the reader to 

another reference in the bibliography. that contains 

either complementary or contradictory information or 

conclusions. 

Keyword abstract.-The keyword information enables the reader to review quickly the general subject matter covered in each entry. The keywords used in annotating the bibliography are listed alphabetically in table 1. 

Keywords flagged with an asterisk in table 1 were used to 

develop the subject index of the bibliography. Words in 

brackets, [ ], following the keywords in table 1 are either 

associated keywords or give further information regarding 

the keyword. For example, the commodity keywords 

"coal," "gold," and "silver" are always accompanied by 

the "economic geology" keyword in the annotation. Similarly, the keywords "magnetism" and "gravity" are accompanied in the annotation by the keyword "geophysics"; 

"hornfels" is accompanied by "metamorphism," and "Ar/ 

Table 1. Alphabetical listing of keyword file used in annotating the bibliography 

[*indicates use of keyword in the subject index of the bibliography. Words in[) following the keyword are either associated keywords or provide further 

information about the keyword] 

Aeromagnetism [geophysics] 

Aeroradioactivity [geophysics] 

Ar/ Ar dating [radiometric age]* 

Barite [economic geology]* 

Basalt [rock type]* 

Bedrock geology 

Bibliography* 

Buried basins* 

Chemistry [refers to water] 

Climate* 

Coal [economic geology]* 

Copper [economic geology]* 

Diabase [rock type]* 

Economic geology [accompanied by commodity type]* 

Faults* 

Fission-track dating [radiometric age] 

Gas [economic geology]* 

General geology [a broad category combining regional geology, 

stratigraphy, and structure]* 

Geochemistry [usually accompanied by rock type]* 

Geophysics* 

Gold [economic geology]* 

Granophyre [rock type] 

Gravity [geophysics]* 

Helium dating [radiometric age-water] 

Hornfels [rock type] [metamorphism] 

Hydrology* 

Iron [economic geology]* 

Isotopes [geochemistry]* 

1 Side-looking airborne radar. 

K! Ar dating [radiometric age]* 

Lead [economic geology]* 

Magnetism [geophysics]* 

Metamorphism* 

Mineralogy [accompanied by rock type]* 

Molybdenum [economic geology] 

Nd/Sr isotopes [radiometric age] 

Oil [economic geology]* 

Oil shale [economic geology] 

Paleomagnetism [geophysics] 

Paleontology* 

Petrology [accompanied by rock type]* 

Radioactivity [geophysics]* 

Radiometric age* 

Rb/Sr isotopes [radiometric age] 

Resistivity [geophysics]* 

Salt [economic geology]* 

Sedimentation* 

Sediment [rock type] 

Seismic profiles [geophysics]* 

Silver [economic geology]* 

SLAR 1 [geophysics]* 

Stratigraphy* 

Structure* 

Surficial geology 

Tectonics* 

Uranium [economic geology]* 

Zeolites [mineralogy] 

Zinc [economic geology]* 

2 Bibliography of Studies of Early Mesozoic Basins, Eastern United States 
Ar dating" is accompanied by "radiometric age ." 

Keywords identified in brackets in table 1 as rock type 

(that is, basalt, diabase, granophyre, hornfels, and sediments) are used in situations where information in a reference applies preferentially to a specific rock type. 

Geographic area of coverage.- The geographic area 

entry for each annotation identifies, where appropriate, the 

applicable early Mesozoic basin, State, county, or 7 1/2-

minute USGS topographic quadrangle covered by the reference. Figure 1 shows the locations and names of the 

early Mesozoic basins used in this category. Generally, all 

four items are not noted unless the entry concerns a 

100 200 

specific locality or where such specification is appropriate. 

For the majority of entries, the basin name and the State 

are cited. More than one basin, State, county, or quadrangle may appear for an entry. A State name only may 

appear for those entries concerned with features, such as 

buried basins or Jurassic diabase dikes in the Piedmont, 

that are not restricted to an exposed early Mesozoic basin. 

The term "regional" indicates that the reference applies to a significant portion of the early Mesozoic basin 

system (or Newark Supergroup) of the Eastern United 

States and not necessarily to one particular basin or State. 

300 MILES 

EXPLANATION 

1. Wadesboro (N.C.-S.C.) 

2. Deep River (N.C.) 

3. Durham (N.C.) 

4. Davie County (N.C.) 

5. Dan River and 

Danville (N.C.-Va.) 

6. Scottsburg (Va.) 

7. Basins north of 

Scottsburg (Va.) 

8. Farmville (Va.) 

9. Richmond (Va.) 

10. Taylorsville (Va.) 

11. Scottsville (Va.) 

12. Barboursville (Va.) 

13. Culpeper (Va.-Md.) 

14. Gettysburg (Md.-Pa.) 

15. Newark (N.J.-Pa.-N.Y.) 

16. Pomperaug (Conn.) 

17. Hartford (Conn.-Mass.) 

18. Deerfield (Mass.) 

19. Fundy or Minas 

(Nova Scotia-Canada) 

20. Chedabucto (Nova 

Scotia-Canada) 

100 200 300 400 KILOMETERS 

Figure 1. Exposed basins (black areas) of the Newark Supergroup in Eastern North America. 

Geographic Area of Coverage 3 
The term "Gulf Coast" refers to the onshore and offshore 

areas of the Southern States of the United States having 

.coastlines on the Gulf of Mexico. The term "Maritime 

Province" refers to the Gulf of Maine and onshore and 

offshore areas of Newfoundland and the Maritime Provinces of Canada (Nova Scotia, New Brunswick, and 

Prince Edward Island). Other geographic areas outside the 

Eastern United States are noted by country. These include 

Morocco, Liberia, Greenland, and Eastern Canada. 

Selected references covering these areas are included because of their complementary nature to the study of Eastem United States early Mesozoic basins. 

Map category.-The map annotation indicates 

whether a reference entry contains mapping data (such as 

geologic maps, geologic cross sections, columnar sections, mine sketches, or sample localities). 

One or more subcategories of maps may appear: 

geologic, geophysical, section, or miscellaneous. The map 

scale, if known, is given in brackets following each subcategory. The geology (geol) subcategory covers bedrock 

geology maps, lithology maps, and structural geology 

maps. The geophysics (geophys) subcategory is subdivided into gravity, aeromagnetism, or aeroradioactivity 

maps. The section (section) subcategory covers geologic 

cross sections, stratigraphic columns, columnar sections, 

core or drill-hole logs, geophysical drill-hole logs, and so 

forth. The miscellaneous (mise) subcategory includes map 

types not covered by the other categories, such as depthto-bedrock maps, isopach maps, and mine-location or 

sample-location maps. 

Data.-The data category indicates whether a reference entry includes photographs or tabular or graphic information on chemistry or mineralogy. 

INDEXING THE BIBLIOGRAPHY BY AREA, 

KEYWORD, AND MAP TYPE 

The bibliography is indexed in three ways: by area, 

keyword, and map type. The geographic area index provides a breakdown of the bibliography by geographic 

area. The subject index provides a breakdown of the 

keyword file, subsorted by geographic area and data type. 

The map-type index provides a breakdown of all map-reference citations by map category. Table 2 gives the organization of the indexes by area, keyword, and map-type 

categories. The keywords used in the subject index are 

flagged with an asterisk in table 1. In each index, a cited 

reference is indicated by using the sequential reference 

number that precedes the entry in the bibliography. 

In each index, code letters following the reference 

numbers indicate the type-of-information classification of 

the entries: 

Type of information Code 

Paper - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - P 

Abstract - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A 

Map - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - M 

Field guide - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ·· - F 

Thesis - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - T 

More than one code letter may be given to an entry. 

HOW TO USE THE BIBLIOGRAPHYAN EXAMPLE 

The following example illustrates how to use the 

bibliography. If the reader is interested in information restricted to a certain subject, the keyword list given in table 

2 should be consulted first to determine if a suitable 

keyword has been used in indexing the bibliography. If 

suitable keywords are found, the subject index should be 

consulted to find a list of reference numbers for each 

keyword. The reference numbers are listed sequentially 

in the bibliography and can be used to identify specific 

references. 

If, for example, the reader is interested in 

mineralogical studies of thermally altered rocks around 

diabase sheets in the Culpeper basin of Virginia, the 

keyword "metamorphism" used in the subject index is 

most appropriate. The metamorphism category in the section index has been subdivided by geographic area and 

lists three references covering the Culpeper basin of Virginia: 750 A, 1177 P, and 1178 P. The code letters following the reference number identify the reference as an 

abstract (A), paper (P), map (M), field guidebook (F), or 

thesis (T). Locating these reference numbers in the bibliography gives the following citations: 

750 A: Lee, K.Y., 1982, Thermal metamorphism of 

Triassic and Jurassic sedimentary rocks in the 

Culpeper basin, Virginia: Geological Society of 

America, Abstracts with Programs, v. 14, p. 

34. 

1117 P: Shannon, Earl V., 1925, An occurrence of 

xonotlite at Leesburg, Virginia: American 

Mineralogist, v. 10, p. 12-13. 

1178 P: Shannon, Earl V., 1926, Mineralogy and petrology of Triassic limestone conglomerate metamorphosed by intrusive diabase at Leesburg, 

Virginia: U.S. National Museum, Proceedings, 

v. 66, Art. 28, 31 p. 

A similar procedure can be followed to obtain a list of references for a particular geographic area or a specific map 

type. 

4 . Bibliography of Studies of Early Mesozoic Basins, Eastern United States 
Table 2. Organization of bibliography indexes by area, keyword, and map-type categories 

Geographic-area breakdown 

Connecticut 

Florida 

Georgia 

Gulf Coast 

Maritime 

Maryland 

Massachusetts, Deerfield basin 

Massachusetts, Hartford basin 

Massachusetts, other 

Morocco 

New Jersey 

New York 

North Carolina, Dan River basin 

North Carolina, Durham-Wadesboro-Deep River basins 

North Carolina, other 

Pennsylvania, Gettysburg basin 

Pennsylvania, Newark basin 

Pennsylvania, other 

Regional 

South Carolina 

Virginia, Culpeper basin 

Virginia, Danville basin 

Virginia, Farmville basin 

Virginia, Richmond basin 

Virginia, other 

Keyword breakdown 

Basalt, subsort by geographic area 

Bibliography, subsort by geographic area 

Buried basins, subsort by geographic area 

Climate, subsort by geographic area 

Diabase, subsort by geographic area 

Economic geology, subsort by geographic area 

Economic geology, subsort by commodity category: 

Barite 

Coal 

Copper 

Gas 

Gold 

Iron 

Lead 

Oil 

Salt 

1 Side-looking airborne radar. 

ACKNOWLEDGMENTS 

The authors thank the staff of the U.S. Geological 

Survey Library at the National Center, Reston, Va., for 

their cooperation and assistance in this effort and for their 

diligence in locating obscure or incomplete references. 

Keyword breakdown-Continued 

Silver 

Uranium 

Zinc 

Faults, subsort by geographic area 

General geology, subsort by geographic area 

Geochemistry, subsort by geographic area 

Geophysics, subsort by geographic area 

Geophysics, subsort by type: 

Gravity 

Magnetism 

Radioactivity 

Resistivity 

Seismic profiles 

SLAR1 

Hydrology, subsort by geographic area 

Isotopes, subsort by geographic area 

Metamorphism, subsort by geographic area 

Mineralogy, subsort by geographic area 

Paleontology, subsort by geographic area 

Petrology, subsort by geographic area 

Radiometric age, subsortby geographic area 

Radiometric age, subsort by type: 

Ar/ Ar dating 

K/Ardating 

Other methods 

Sedimentation, subsort by geographic area 

Stratigraphy, subsort by geographic area 

Structure, subsort by geographic area 

Tectonics, subsort by geographic area 

Map-type breakdown 

Geophysics maps, subsort by type: 

Aeromagnetism 

Gravity 

Other geophysics maps 

Aeroradioactivity 

Basement depth contour 

Landsat 

Seismicity 

Geophysics maps, subsort by geographic area 

Geologic maps, subsort by geographic area 

Other maps 

A.J. Froelich and M.P. Foose, both of the U.S. Geological Survey, provided valuable reviews of this manuscript 

and identified many errors and omissions. Nicholas G. 

McDonald shared information from an unpublished bibliography prepared for the State of Connecticut Natural 

Resources Center, Department of Environmental ProtecAcknowledgments 5 
tion that he has compiled covering the Hartford basin in 

Massachusetts and Connecticut. His bibliography contains 

many references of an historical nature not included in this 

report. 

6 Bibliography of Studies of Early Mesozoic Basins, Eastern United States 

REFERENCE CITED 

Russell, I.C., 1892, Correlation papers, the Newark System: 

U.S. Geological Survey Bulletin 85, 344 p. 
SECTION 1. GEOGRAPHIC-AREA INDEX 

Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

Connecticut 297 p 556 p 814 PM 

298 p 582 PM 833 A 

1 p 299 p 590 p 847 A 

7 PM 302 p 593 p 858 T 

8 p 303 PM 594 p 860 T 

14 A 304 p 595 p 861 F 

15 A 305 p 596 p 862 A 

22 p 306 F 613 p 896 PM 

27 T 308 F 614 p 906 T 

28 p 320 p 615 p 907 A 

29 p 334 T 617 A 915 p 

30 p 349 p 619 p 916 p 

46 p 351 p 620 F 920 p 

62 p 356 A 621 p 928 p 

69 p 396 PM 622 p 942 T 

80 A 403 p 623 A 943 F 

92 M 404 p 626 A 969 M 

93 M 405 A 627 p 971 p 

110 A 406 p 628 F 974 T 

183 M 407 p 629 A 975 M 

186 A 408 A 630 p 984 M 

192 p 409 p 632 A 985 M 

201 PM 410 p 633 T 986 M 

206 p 411 p 635 M 987 M 

210 T 421 p 664 p 988 M 

211 A 422 M 680 A 992 A 

230 T 423 M 681 A 994 p 

231 p 424 p 687 p 995 p 

232 p 436 p 688 p 996 p 

233 p 440 PM 691 F 997 A 

235 p 452 A 698 A 999 p 

243 p 454 T 699 p 1002 T 

244 PM 455 p 705 T 1010 PM 

245 M 456 M 708 PM 1015 M 

246 M 457 M 709 A 1016 M 

247 M 474 p 710 PM 1019 M 

254 p 501 A 717 p 1023 T 

255 p 502 F 734 A 1037 p 

258 p 503 F 755 PM 1043 p 

265 M 504 A i62 A 1053 T 

273 A 509 p 764 A 1060 T 

276 p 516 M 800 A 1064 A 

277 p 523 M 802 p 1065 A 

278 p 524 M 803 p 1068 T 

279 p 527 p 804 p 1071 p 

293 p 528 M 805 p 1072 F 

294 p 537 M 806 F 1073 F 

295 p 539 p 812 p 1080 p 

296 p 540 p 813 p 1081 T 

1-1 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

Connecticut-- Cont. 1306 M 842 A 1227 A 

1307 M 843 p 1250 p 

1090 A 1308 M 902 p 1266 p 

1098 F 1311 M 977 p 1267 p 

1099 p 1313 M 1020 p 1346 p 

1100 M 1314 M 1057 A 1347 p 

1112 p 1315 M 1111 p 1374 p 

1113 p 1316 M 1387 A 

1115 p 1318 M Maryland 1117 p 1319 M Gulf Coast 

1123 T 1320 M 16 p 

1124 p 1321 M 1005 p 99 M 

1125 p 1322 M 1006 p 100 M 

1128 A 1323 M 158 M 

1129 M 1324 M Maritime 316 F 

1130 M 1325 M 332 A 

1134 F 1326 M 58 p 353 p 

1137 A 1327 M 59 p 389 M 

1138 A 1328 M 223 p 393 p 

1141 A 1329 M 333 p 425 M 

1142 p 1330 M 359 p 426 M 

1143 F 1370 p 459 p 429 M 

1147 p 1378 T 598 p 659 M 

1148 T 1388 T 616 p 724 p 

1160 p 1389 p 618 A 738 M 

1161 M 1390 p 624 p 746 p 

1162 M 1404 T 625 A 748 p 

1163 M 1410 p 643 p 784 p 

1164 M 1428 p 644 p 789 M 

1165 M 1445 A 645 F 893 p 

1167 T 1446 A 675 p 919 M 

1168 PM 1447 A 689 p 924 p 

1171 p 690 p 950 T 

1176 A Florida 725 p 1057 A 

1184 p 726 p 1067 M 

1185 T 25 p 727 p 1074 p 

1188 M 26 p 735 T 1201 T 

1190 T 32 p 931 p 1203 A 

1193 p 938 A 1204 A 

1201 T Georgia 951 p 1206 p 

1203 A 952 A 1235 p 

1205 p 25 p 953 p 1259 T 

1206 p 237 PM 954 p 1260 A 

1212 p 281 PM 955 p 1262 p 

1216 PM 283 p 972 T 1334 M 

1217 PM 328 T 1024 F 1345 M 

1262 p 330 A 1025 p 1459 M 

1280 T 331 p 1026 p Massachusetts, 1281 A 488 A 1027 p 

1294 p 751 A 1039 A Deerfield basin 

1304 M 761 p 1170 p 19 M 

1305 M 841 p 1223 F 20 M 

1-2 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

Massachusetts, Massachusetts, 593 p 1294 p Deerfield basin Hartford basin 617 A 1336 M --Cont. 628 F 1388 T 

28 p 639 p 1389 p 

21 M 45 F o41 T 1390 p 

47 p 56 PM 697 M 1407 A 

48 p 63 p 703 p 1410 p 

53 M 124 M 705 T 1440 A 

54 M 125 M 706 p 1445 A 

55 M 17~ M 757 M 1447 A 

178 M 179 F 792 M Massachusetts, 184 A 184 A 793 M other 185 A 199 A 794 M 

229 p 200 A 797 M 261 T 

243 p 220 T 799 M 399 p 

370 p 229 p 800 A 400 A 

371 p 243 p 803 p 674 p 

475 p 247 M 806 F 925 p 

522 p 258 p 833 A 947 p 

525 T 293 p 900 p 965 M 

556 p 327 T 944 p 1169 M 

679 p 350 p 948 p 1202 A 

715 T 356 A 949 p 

788 p 357 T 960 p Morocco 795 M 361 p 969 M 

796 M 362 p 970 p 50 A 

798 M 363 p 978 M 91 T ~91 M 364 p 979 M 187 T 

892 M 365 PM 1007 M 188 A 

1009 M 366 p 1008 M 189 p 1013 M 367 p 1012 M 263 p 1014 M 368 p 1016 M 378 p 1225 T 369 p 1017 M 517 p 1226 p 370 p 1018 M 530 T 

1294 p 371 p 1019 M 531 A 1309 M 383 p 1069 A 663 T 

1336 M 402 p 1070 p 808 p 1389 p 514 A 1097 A 839 A 

1390 p 515 T 1132 T 840 p 1405 T 525 T 1133 T 851 p 1406 p 536 T 1137 A 1361 p 1408 F 537 M 1149 T 

1410 p 556 p 1162 M New Jersey 1437 M 559 T 1174 p 

1438 M 560 A 1175 p 1 p 

1439 M 587 T 1213 T 2 p 

1440 A 590 p 1218 T 5 F 

1441 T 591 p 1224 p 6 A 

1447 A 592 p 1268 T 10 A 

1-3 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

New Jersey-- Cont. 390 p 752 p 1000 p 

391 p 763 p 1011 A 

12 T 392 p 766 p 1036 p 

17 M 398 p 767 p 1037 p 

18 M 420 p 768 p 1040 p 

37 A 443 A 769 p 1041 p 

61 p 468 p 770 p 1042 p 

65 PM 483 p 771 p 1054 p 

67 p 494 p 772 p 1055 A 

70 PM 495 p 773 p 1056 F 

71 p 497 p 775 p 1079 F 

79 T 507 p 790 p 1083 A 

80 A 532 p 817 p 1116 p 

96 p 542 p 830 p 1117 p 

98 A 543 p 831 p 1126 T 

104 p 544 p 833 A 1131 p 

114 p 545 p 834 A 1137 A 

116 M 546 p 835 F 1139 p 

117 M 547 A 848 p 1150 p 

118 M 548 p 849 T 1152 F 

119 M 552 F 850 T 1153 A 

120 M 553 p 852 p 1155 p 

121 M 557 p 864 T 1171 p 

122 M 561 M 868 T 1182 A 

123 M 562 M 870 p 1210 A 

198 F 563 M 871 p 1214 p 

222 PM 564 M 878 p 1234 p 

241 p 565 M 879 p 1249 M 

250 p 566 M 880 p 1252 A 

251 p 567 M 882 A 1253 T 

252 p 568 M 901 p 1254 T 

253 p 569 M 904 A 1291 p 

260 p 570 M 920 p 1300 p 

270 p 571 M 922 p 1302 p 

285 p 572 M 923 p 1303 A 

286 A 584 p 927 p 1342 M 

287 p 605 p 928 p 1350 F 

288 PM 612 A 929 F 1351 p 

289 PM 634 p 930 F 1352 p 

293 p 636 p 932 A 1353 p 

326 T 640 p 936 p 1354 p 

335 M 646 p 940 p 1355 p 

336 M 647 F 945 M 1356 A 

339 p 648 F 946 p 1357 A 

344 T 672 p 956 p 1358 F 

346 F 673 T 964 p 1359 A 

373 A 678 p 976 F 1360 p 

374 .p 682 p 980 M 1362 A 

384 p 711 p 981 M 1367 A 

385 p 712 PM 982 M 1368 p 

386 p 714 p 983 M 1369 p 

387 p 744 T 989 p 1370 p 

l-4 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

New Jersey--Cont. 1373 F 256 T 1331 M 

1411 p 266 T 1332 M 

1371 p North Carolina, 267 A 1333 M 

1372 p 268 A 1335 M 

1373 F Dan River basin 325 T 1338 M 

1388 T 207 p 343 A 1340 M 

1389 p 225 M 360 T 1363 p 

1390 p 442 A 395 T 1413 A 

1391 p 903 F 397 p 1414 A 

1392 p 911 p 476 A 1415 p 

1394 T 934 p 496 T 1443 p 

1422 p 1001 T 533 A 1452 p 

1429 p 1085 p 534 T 1458 T 

1431 p 1086 T 535 PM 

1436 p 1232 PM 578 p North Carolina, 

1442 A 1251 p 599 T other 

1446 A 1272 A 600 A 

1451 p 1273 T 601 T 111 p 

1454 p 1274 A 602 p 112 PM 

New York 1276 p 604 p 182 PM 

1277 A 637 T 205 p 

5 F 1279 F 651 p 249 PM 

81 A 1337 M 658 p 280 T 

82 A 1339 M 666 A 281 PM 

97 T 1452 p 667 A 283 p 

209 A 670 T 329 p 

212 T North Carolina, 700 A 340 A 

398 p Durham-Wadesboro- 701 p 341 p 

437 A Deep River basins 756 A 492 p 

443 A 3 PM 832 p 603 T 

562 M 9 PM 854 p 665 A 

612 A 31 T 912 p 669 A 

702 p 39 p 957 A 745 p 

704 T 40 A 958 PM 753 p 

712 PM 41 A 1032 A 777 T 

713 p 42 PM 1033 A 823 p 

791 A 43 FM 1034 p 963 T 

809 p 44 A 1050 p 1045 A 

810 T 51 A 1051 T 1048 p 

904 A 57 T 1052 p 1049 p 

936 p 75 p 1066 PM 1078 A 

941 T 78 F 1158 p 1159 p 

946 p 87 A 1166 p 1207 A 

973 PM 88 p 1181 T 1221 T 

981 M 94 p 1191 T 1230 A 

982 M 191 T 1219 T 1231 PM 

983 M 197 T 1229 p 1255 T 

1054 p 214 A 1251 p 1269 A 

1146 F 215 A 1264 T 1275 p 

1151 T 218 PM 1265 A 1284 p 

1282 PM 219 PM 1285 p 1387 A 

1358 F 236 T 1317 M 1427 T 

1-5 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

Pennsylvania, 450 F 1199 A 132 M 

Gettysburg basin 461 p 1200 p 133 M 

462 T 1215 p 134 M 

34 p 463 A 1236 PM 135 M 

37 A 464 p 1237 PM 136 M 

72 p 465 A 1238 p 137 M 

74 p 466 A 1239 p 138 M 

84 M 484 p 1240 PM 139 M 

95 T 493 p 1241 p 140 M 

106 p 498 FM 1242 M 141 M 

113 p 499 F 1243 p 142 M 

153 M 500 M 1246 PM 143 M 

154 M 529 p 1247 PM 144 M 

155 M 579 A 1248 p 145 M 

156 M 580 T 1256 p 146 M 

157 M 585 p 1270 PM 147 M 

158 M 586 p 1290 p 148 M 

159 M 608 p 1364 T 149 M 

160 M 609 PM 1365 p 150 M 

161 M 610 p 1376 p 151 M 

162 M 611 p J.377 p 152 M 

163 M 631 p 1418 p 173 M 

164 M 638 PM 1419 p 174 M 

165 M 652 PM 1449 PM 196 p 

166 M 662 PM 1450 p 222 PM 

167 M 677 p 1455 p 264 p 

168 M 718 T Pennsylvania, 323 p 

169 M 720 A Newark basin 324 p 

170 M 721 A 37 A 335 M 

171 M 722 p 64 M 336 M 

172 M 723 p 66 PM 344 T 

175 M 724 p 67 p 346 F 

176 M 789 M 68 T 347 p 

240 p 826 M 72 p 348 p 

264 p 874 p 73 p 379 A 

291 p 883 A 74 p 380 p 

323 p 884 p 85 M 381 p 

324 p 885 F 103 p 382 A 

355 T 886 p 105 p 413 p 

379 A 918 p 106 p 441 T 

380 p 922 p 107 p 444 T 

388 PM 1021 T 108 p 446 M 

414 p 1103 M 113 p 447 p 

415 p 1104 PM 120 M 448 F 

416 PM 1105 p 121 M 450 F 

417 p 1106 p 122 M 451 T 

439 F 1107 p 126 M 460 T 

445 PM 1114 PM 127 M 461 p 

446 M 1180 T 128 M 462 T 

447 p 1195 T 129 M 464 p 

448 F 1197 p 130 M 465 A 

449 M 1198 A 131 M 466 A 

1-6 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

Pennsylvania, 910 A 1409 p 301 p Newark basin 922 p 1416 p 307 p --Cont. 92H p 1417 p 309 p 

498 FM 932 A 1418 p 310 A 

499 F 936 p 1419 p 311 A 

500 M 1021 T 1420 p 312 A 

505 p 1022 PM 1421 p 313 A 

518 p 1061 p 1423 PM 314 p 

541 p 1062 p 1435 PM 317 p 

548 p 1079 F 1449 PM 342 p 

580 T 1084 p 1455 p 345 p 

581 p 1101 p 1462 p 372 p 

585 p 1102 p Pennsylvania, 377 p 

608 p 1105 p 401 p 

610 p 1106 p other 418 ·p 

631 p 1107 p 234 p 419 F 

660 PM 1110 T 606 p 431 p 

661 PM 1127 p 765 p 453 p 

673 T 1137 A 927 p 458 p 

677 p 1156 A 1108 A 466 A 

693 p 1173 T 1289 p 467 A 

716 T 1186 A 1424 p 490 A 

720 A 1187 p 1425 p 508 p 

733 T 1189 p Regional 510 A 

736 A 1194 PM 511 p 

760 p 1195 T 33 p 512 T 

807 PM 1196 p 35 p 519 p 

820 p 1198 A 38 p 538 p 

821 p 1199 A 49 p 549 A 

822 p 1200 p 50 A 550 p 

H24 M 1215 p 88 p 554 p 

825 M 1228 p 90 p 588 p 

827 PM 1233 p 102 A 589 p 

828 M 1239 p 109 p 597 p 

855 p 1244 A 115 T 668 A 

868 T 1245 A 193 p 683 p 

H70 p 1256 p 194 p 684 p 

872 p 1290 p 195 A 692 p 

873 p 1292 T 202 p 694 p 

874 p 1296 p 204 p 695 p 

875 p 1300 p 221 p 696 A 

H76 p 1302 p 227 T 720 A 

877 p 1303 A 242 p 729 p 

878 p 1352 p 257 T 743 p 

879 p 1353 p 259 p 758 p 

882 A 1354 p 263 p 759 p 

H83 A 1356 A 271 p 774 p 

886 p 1358 F 272 p 781 A 

887 p 1359 A 274 p 783 p 

H97 p 1362 A 275 p 801 p 

898 PM 1364 T 290 p 805 p 

899 PM 1365 p 300 p 811 p 

1-7 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

Region a 1--Cont. 1183 p 990 p 576 T 

818 p 1205 p 991 p 577 A 

819 p 1206 p 1020 p 583 p 

829 p 1208 p 1031 A 607 p 

835 F 1209 T 1048 p 642 M 

836 p 1211 T 1157 p 649 M 

837 p 1263 p 1192 A 653 p 

838 A 1283 A 1220 A 655 M 

853 p 1293 p 1221 T 656 M 

857 p 1297 p 1222 p 657 M 

859 A 1301 A 1284 p 671 T 

863 p 1348 p Vi rg i ni a, 676 PM 

866 A 1349 p Culpeper basin 728 p 

869 PM 1361 p 730 p 

881 p 1366 p 13 PM 731 M 

909 p 1379 p 24 A 732 p 

926 T 1382 p 36 p 737 M 

933 A 1386 T 83 M 738 M 

935 p 1393 p 86 F 739 M 

937 A 1400 A 101 p 740 A 

939 p 1401 T 177 M 741 A 

967 A 1402 A 180 F 742 A 

968 A 1403 p 213 p 746 p 

993 p 1412 p 224 p 747 M 

1004 A 1426 p 248 F 748 p 

1005 p 1430 A 262 A 749 p 

1035 A 1444 p 269 PM 750 A 

1038 A 1453 p 282 p 778 A 

1044 p 1461 p 292 A 779 p 

1046 A South Carolina 316 F 7SO A 

1047 A 319 p 781 A 

1058 p 76 p 337 M 782 A 

1059 p 77 PM 338 M 784 p 

1063 p 78 F 352 p 785 p 

1075 p 112 PM 354 M 786 T 

1076 p 208 p 358 F 856 p 

1077 p 228 p 394 p 890 p 

1087 A 281 PM 427 M 908 p 

1088 p 283 p 428 M 913 M 

1089 A 321 p 429 M 914 A 

1109 A 329 p 430 M 919 M 

1118 p 470 p 432 M 922 p 

1119 p 471 A 433 M 959 PM 

1120 p 472 p 434 M 962 A 

1121 p 487 p 435 F 1057 A 

1122 p 491 p 438 PM 1082 F 

1135 p 521 p 473 p 1091 T 

1136 A 719 p 485 A 1094 p 

1140 p 776 T 486 T 1177 p 

1144 A 841 p 513 p 1178 p 

1145 A 842 A 520 p 1179 p 

1154 p 843 p 555 T 1261 A 

1-8 
Ref. Ref. Ref. Ref. 

No. Type No. Type 

Virginia, 

Culpeper 1298 basin A 

--Cont. 1433 F 

1434 A 

1286 p 1452 p 

1287 PM Virginia, 1288 p 

1299 A Richmond basin 

1343 M 24 A 

1344 M 89 A 

1345 M 181 p 

1370 p 284 p 

1380 A 477 A 

1381 p 478 A 

1383 p 479 PM 

1385 p 480 A 

1397 p 481 M 

1432 M 482 A 

1448 M 558 p 

1456 A 816 p 

1457 p 921 p 

1459 M 1172 PM 

1460 M 1341 M 

Virginia, 1452 p 

Danville basin Virginia, other 

11 p 4 p 

24 A 23 T 

341 p 217 p 

573 p 238 A 

574 PM 375 PM 

575 M 376 p 

754 PM 469 A 

787 T 489 p 

846 M 650 PM 

894 T 654 PM 

895 PM 685 T 

934 p 686 T 

1028 M 707 PM 

1029 M 815 PM 

1030 p 917 PM 

1085 p 966 p 

1086 T 1092 p 

1272 A 1093 p 

1277 A 1095 p 

1278 A 1096 A 

1310 M 1257 p 

Virginia, 1312 M 

Farmville basin 1375 A 

24 A 1384 p 

190 PM 1395 p 

844 M 1396 A 

845 PM 1398 p 

1399 M 

1-9 

SECTION 2. SUBJECT INDEX 

Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

KEYWORD: basalt 1072 F 367 p 483 p 

Connecticut 1138 A 369 p 543 p 

80 A 1160 p 370 p 546 p 

192 p 1171 p 371 p 557 p 

206 p 1176 A 402 p 636 p 

231 p 1280 T 514 A 672 p 

232 p 1281 A 559 T 744 T 

233 p 560 A 763 p 

235 p 639 p 767 p 

254 p Florida 706 p 768 p 

276 p 833 A 771 p 

277 p 1057 A 944 p 772 p 

278 p 949 p 773 p 

279 p 1069 A 831 p 

293 p Maritime 1175 p 833 A 

297 p 1218 T 834 A 

304 p 333 p 1268 T 835 F 

306 F 359 p 848 p 

308 F 726 p 850 T 

356 A 952 A Massachusetts, 871 p 

403 p 1025 p other 976 F 

404 p 1039 A 1036 p 

405 A 1223 F 399 p 1037 p 

406 p 1374 p 1041 p 

410 p 1116 p 

411 p Morocco 1131 p 

455 p Maryland 1150 p 

501 A 839 A 1155 p 

503 F 1057 A 840 p 1171 p 

504 A 1182 A 

527 p 1367 A 

539 p Massachusetts, New Jersey 1394 T 

540 p Deerfield basin 1422 p 

596 p 79 T 1429 p 

613 p 48 p 80 A 1442 A 

632 A 185 A 98 A 

633 T 370 p 198 F 

764 A 371 p 250 p New York 

833 A 1057 A 253 p 

915 p 287 p 97 T 

994 p 293 p 443 A 

995 p Massachusetts, 384 p 702 p 

996 p Hartford basin 385 p 

997 A 386 p 

1016 M 179 F 390 p North Carolina, 

1019 M 293 p 391 p Durham-Wadesboro1037 p 356 A 392 p Deep River basins 

1043 p 363 p 443 A 

1065 A 364 p 468 p 700 A 

2-1 
No. 

Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. Type No. Type No. Type No. Type 

North Carolina, Connecticut Maritime 1382 p other Provinces 1453 p 1193 p 

665 A 1212 p 459 p 

1346 p South Car o 1 ina 

1347 p Pennsylvania, Pennsylvania, 76 p Newark basin Gettysburg basin 112 PM 

Maryland 281 p 1417 p 484 p 283 p 

1106 p 16 p 321 p 

353 p 470 p Regional 1074 p 471 A Pennsylvania, 472 p 33 p Newark basin 521 p 35 p Massachusetts 776 T 194 p 1106 p 841 p 195 A 399 p 842 A 274 p 400 A 843 p 300 p Virginia 925 p 990 p 309 p 991 p 774 p 815 PM 1020 p 835 F New York 1157 p 993 p 1192 A 1035 A KEYWORD: buried 1411 p 1038 A basins 

1209 T Virginia, North Caro 1 ina Richmond basin 

Connecticut 

South Carolina 111 p 284 p 

110 A 112 PM 

471 A 281 p 

487 p 283 p Virginia, other 491 p Florida 823 p 

991 p 1078 A 4 p 

25 p 1159 p Virginia, 26 p KEYWORD: climate Culpeper basin 32 p 

742 A Regional Connecticut 

856 p Georgia 202 p 621 p 1057 A 272 p 622 p 1381 p 25 p 510 A 710 PM 

237 p 511 p 1115 p 

281 p 694 p KEYWORD: 283 p 695 p bibliography 841 p 829 p Pennsylvania, 842 A 863 p Newark basin Regional 843 p 1075 p 

902 p 1076 p 927 p 554 p 977 p 1077 p 1352 p 1121 p 1020 p 1297 p 1353 p 

2-2 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

Regional Maryland 584 p North Carolina, 

634 p other 549 A 724 p 640 p 550 p 1057 A 744 T 205 p 759 p 1259 T 767 p 340 A 837 p 1260 A 770 p 492 p 926 T 773 p 669 A 1058 p 848 p 1045 A 1297 p Massachusetts, 852 p 1048 p Deerfield basin 901 p 1049 p KEYWORD: diabase 964 p 1221 T 

370 p 989 p 1230 A Connecticut 1011 A 1255 T 

1040 p 1284 p 273 A Massachusetts, 1042 p 1387 A 306 F Hartford basin 1083 A 

455 p 1214 p 

509 p 361 p 1234 p Pennsylvania, 688 p 366 p 1291 p Gettysburg basin 705 T 368 p 1368 p 

717 p 369 p 1369 p 291 p 847 A 370 p 1370 p 355 T 992 A 515 T 1371 p 493 p 999 p 705 T 1372 p 608 p 1053 T 944 p 1373 F 610 p 1068 T 948 p 1429 p 611 p 1124 p 949 p 718 T 1160 p 1174 p 720 A 1370 p New York 721 A 

722 p Massachusetts, 81 A 724 p Georgia other 82 A 1195 T 

212 T 1198 A 330 A 261 T 398 p 1199 A 331 p 947 p 437 A 1200 p 488 A 702 p 1248 p 751 A 713 p 1290 p 761 p Morocco 809 p 1364 T 1057 A 1373 F 1365 p 1111 p 91 T 

1387 A 

North Carolina, Pennsylvania, New Jersey Durham-Wadesboro- Newark basin Maritime Deep River basins 

61 p 413 p 725 p 98 A 578 p 608 p 735 T 287 p 666 A 610 p 952 A 326 T 667 A 720 A 953 p 387 p 670 T 1156 A 954 p 398 p 701 p 1187 p 1170 p 420 p 1219 T 1195 T 1250 p 532 p 1198 A 

2-3 
Ref. Ref. Ref. Hef. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

Pennsylvania, South Carolina 421 p 1294 p Newark basin- 502 F 1410 p Cont. 208 p 590 p 

228 p 595 p 

1199 A 1031 A 614 p Massachusetts, 1200 p 1048 p 630 p other 1290 p 1220 A 734 A 

1364 T 1221 T 915 p 965 M 

1365 p 1222 p 969 M 

1284 p 974 T 

1023 T Morocco Pennsylvania, 1080 p 

other Virginia, 1081 T 1361 p 

Culpeper basin 1128 A 

765 p 1164 lVI 

1108 A 86 F 1184 p New Jersey 

292 A 1188 M 

473 p 1193 p 1 p Regional 520 p 1212 p 65 PM 

583 p 1294 p 67 p 

33 p 728 p 1410 p 70 PM 

90 p 890 p 1428 p 71 p 221 p 908 p 96 p 

227 T 962 A 250 p 

274 p 1057 A Maritime 252 p 300 p 1179 p 260 p 

310 A 1261 A 359 p 286 A 

313 A 1288 p 644 p 288 PM 

490 A 1299 A 951 p 289 PM 

512 T 1370 p 326 T 

538 p 1380 A 494 p 

668 A 1381 p Massachusetts, 495 p 

684 p Deerfield basin 542 p 

720 A 544 p 

967 A Virginia, other 370 p 553 p 

968 A 1294 p 646 p 

993 p 238 A 1410 p 648 F 

1004 A 489 p 1437 M 678 p 

1044 p 966 p 1438 M 711 p 

1046 A 1092 p 714 p 

1047 A 1257 p 752 p 

1109 A 1384 p Massachusetts, 766 p 

1183 p Hartford basin 769 p 

1208 p KEYWORD: economic 830 p 

1209 T geology 63 p 849 T 

1211 T 350 p 870 p 

1386 T Connecticut 365 PM 922 p 

1401 T 590 p 1042 p 1402 A 1 p 591 p 1153 A 

1403 p 69 p 969 M 1234 p 

1430 A 206 p 970 p 1300 p 

2-4 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

New Jersey Pennsylvania, 66 PM 1416 p -Cont. Gettysburg basin 67 p 1435 PM 

68 T 1462 p 1302 p 34 p 113 p 

1369 p 113 p 323 p 

1391 p 291 p 324 p Maryland 1392 p 323 p 347 p 

1451 p 324 p 348 p 425 M 

414 p 381 p New York 415 p 382 A 

416 PM 441 T Regional 209 A 417 p 448 F 

1146 F 445 PM 450 F 290 p 

448 F 498 FM 317 p 

449 M 499 F 377 p North Car o 1 ina, Dan 450 F 541 p 458 p River basin 484 p 580 T 467 A 

498 FM 585 p 490 A 903 F 499 F 610 p 510 A 1232 PM 529 p 631 p 829 p 1251 p 579 A 677 p 1087 A 1272 A 580 T 693 p 1088 p 1452 p 585 p 733 T 1089 A 

609 PM 760 p 1293 p North Carolina, 610 p 820 p 1301 A Durham-Wadesboro- 611 p 821 p 1361 p Deep River basins 631 p 827 PM 1393 p 

677 p 855 p 1461 p 42 PM 721 A 870 p 

43 FM 723 p 897 p 

75 p 918 p 898 PM 

87 A 922 p 922 p South Carolina 197 T 1021 T 1021 T 

214 A 1104 PM 1061 p 1284 p 215 A 1105 p 1101 p 

219 PM 1106 p 1102 p 

658 p 1107 p 1105 p Virginia, 1066 PM 1197 p 1106 p Culpeper basin 1251 p 1199 A 1107 p 

1285 p 1215 p 1189 p 86 F 1363 p 1237 PM 1194 PM 269 PM 1443 p 1240 PM 1196 p 319 p 1452 p 1246 PM 1199 A 352 p 

1247 PM 1215 p 427 M North Carolina, 1290 p 1233 p 434 M other 1290 p 438 PM 

1292 T 607 p 

341 p Pennsylvania, 1296 p 671 T 745 p Newark basin 1300 p 922 p 1231 PM 1302 p 1383 p 1284 p 64 M 1409 p 1385 p 

2-5 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

Virginia, Danville 434 M 760 p 414 p 

basin 438 PM 915 p 425 M 

484 p 921 p 427 M 

341 p 542 p 970 p 434 M 

573 p 544 p 1066 PM 450 F 

1272 A 580 T 1087 A 484 p 

585 p 1088 p 490 A 

590 p 1089 A 494 p 

Virginia, Farmville 591 p 1095 p 495 p 

basin 733 T 1172 PM 502 F 

815 PM 1231 PM 506 p 

1433 F 965 M 1232 PM 544 p 

1452 p 970 p 1251 p 553 p 

1095 p 1272 A 590 p 

1101 p 1285 p 591 p 

Virginia, Richmond 1102 p 1363 p 607 p 

basin 1128 A 1398 p 630 p 

1188 M 1399 M 677 p 

181 p 1193 p 1433 F 678 p 

479 PM 1196 p 1443 p 714 p 

558 p 1212 p 1452 p 733 T 

921 p 1233 p 752 p 

1172 PM 1257 p economic geology, 766 p 

1452 p 1292 T subkeyword: copper 769 p 

1385 p 815 PM 

1409 p 1 p 820 p 

Virginia, other 1416 p 65 PM 821 p 

1435 PM 66 PM 830 p 

376 p 1437 M 67 p 849 T 

815 PM 69 p 898 PM 

1095 p 70 PM 922 p 

1257 p economic geology, 71 p 951 p 

1398 p subkeyword: coal 86 F 965 M 

1399 M 96 p 969 M 

42 PM 206 p 974 T 

economic geology, 43 FM 239 p 1023 T 

subkeyword: barite 63 p 250 p 1066 PM 

64 M 252 p 1080 p 

65 PM 87 A 260 p 1081 T 

69 p 181 p 269 PM 1095 p 

250 p 197 T 286 A 1102 p 

326 T 218 PM 288 PM 1104 PM 

348 p 219 PM 289 PM 1105 p 

350 p 416 PM 347 p 1106 p 

352 p 479 PM 348 p 1128 A 

365 p 558 p 350 p 1153 A 

421 p 595 p 359 p 1164 M 

427 M 658 p 370 p 1184 p 

711 p 376 p 

2-6 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

economic geology, 68 T 1369 p 1363 p 

subkeyword: copper 216 p 1462 p 1461 p 

-Cont. 290 p 

291 p 

1188 M 323 p economic geology, economic geology, 1193 p 324 p subkeyword: lead subkeyword: salt 

1196 p 377 p 

1197 p 381 p 66 PM 510 A 

1212 p 382 A 113 p 644 p 

1237 PM 414 p 239 p 1361 p 

1240 PM 415 p 347 p 

1247 PM 417 p 348 p 

1293 p 441 T 350 p economic geology, 1294 p 445 PM 365 PM subkeyword: silver 

1383 p 448 F 370 p 

1391 p 449 M 450 F 69 p 

1392 p 450 F 484 p 113 p 

1393 p 484 p 590 p 269 PM 

1409 p 498 FM 591 p 286 A 

1410 p 499 F 733 T 319 p 

1416 p 529 p 820 p 607 p 

1428 p 541 p 897 p 614 p 

1435 PM 579 A 965 M 630 p 

1438 M 580 T 970 p 678 p 

1451 p 585 p 974 T 766 p 

609 PM 1061 p 769 p 

610 p 1101 p 897 p 

economic geology, 611 p 1102 p 1101 p 

subkeyword: gas 631 p 1106 p 1102 p 

677 p 1128 A 1106 p 

1146 F 721 A 1188 M 1128 A 

723 p 1196 p 1153 A 

economic geology, 827 PM 1212 p 1197 p 

subkeyword: gold 918 p 1294 p 1409 p 

922 p 1409 p 

75 p 1021 T 1410 p 

214 A 1042 p 1416 p economic geology, 215 A 1105 p 1435 PM subkeyword: 614 p 1106 p 1437 M uranium 

678 p 1107 p 

820 p 1189 p 42 PM 

903 F 1194 PM economic geology, 209 A 

1197 p 1197 p subkeyword: 0 i 1 317 p 

1284 p 1199 A 341 p 

1416 p 1215 p 42 PM 458 p 

1237 PM 614 p 467 A 

economic geology, 1240 PM 734 A 502 F 

subkeyword: iron 1246 PM 829 p 573 p 

1247 PM 961 A 646 p 

34 p 1290 p 1146 F 648 F 

66 PM 1296 p 1272 A 671 T 

2-7 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

economic geology, 1437 M 835 F 886 p subkeyword: 904 A 1239 p 

uranium-Cont. 1054 p 1241 p 

KEYWORD: faults 1055 A 

693 p Connecticut 1056 F 

745 p 1139 p Pennsylvania, 855 p 299 p 1249 M Newark basin 

870 p 303 p 

1023 T 320 p 107 p 

1106 p 407 p New York 379 A 

1164 M 424 p 875 p 

1294 p 474 p 398 p 886 p 

1300 p 755 p 612 A 1156 A 

1301 A 1002 T 7g1 A 1239 p 

1302 p 1123 T 904 A 

1125 p 1054 p 

1410 p Regional economic geology, 1445 A 

subkeyword: zinc North Carolina, Dan 49 p 

River basin 781 A 

66 PM Georgia 783 p 

113 p 207 p 801 p 

239 p 977 p 903 F 835 F 

347 p 1135 p 

348 p 1145 A 

350 p Massachusetts, North Carolina, 1412 p 

365 PM Deerfield basin Durham-Wadesboro- 1426 p 

370 p Deep River basins 1444 p 

450 F 119 p 

484 p 67g p 41 A 

590 p 1410 p 236 T South Carolina 

591 p 1441 T 476 A 

733 T 535 p 321 p 

820 p 958 p 

897 p Massachusetts, 1052 p 

965 M Hartford basin 1265 A Virginia, 970 p Culpeper basin 

1061 p 229 p 

1101 p 1410 p North Carolina, 737 M 

1102 p 1445 A other 741 A 

1106 p 779 p 

1128 A 903 F 781 A 

1188 M New Jersey 1196 p Virginia, 1212 p 6 A Pennsylvania, Danville basin 1294 p 386 p Gettysburg basin 

1409 p 398 p 574 p 

1410 p 547 A 240 p 787 T 1416 p 612 A 379 A 895 p 1435 PM 817 p 884 p 1030 p 

2-8 
Ref. Ref. H.ef. H.e f. H.ef. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

KEYWORD: general 969 M 393 p 900 p geology 971 p 426 M 969 M 

1010 PM 659 M 1149 T 

Connecticut 1060 T 746 p 1162 M 

1071 p 748 p 

46 p 1072 F 784 p 

62 p 1073 F 893 p Massachusetts, 

80 A 1098 F 924 p other 

183 M 1099 p 1067 M 

201 PM 1117 p 1235 p 674 p 

210 T 1138 A 925 p 

233 p 1143 F 1169 M 

235 p 1147 p Massachusetts, 

245 M 1161 M Deerfield basin 

246 M 1162 M New Jersey 247 M 1163 M 47 p 

255 p 1164 M 53 M 5 F 

265 M 1165 M 54 M 67 p 

295 p 1167 T 55 M 70 PM 

297 p 1168 PM 370 p 80 A 

298 p 1188 M 371 p 250 p 

304 p 1216 PM 679 p 251 p 

306 F 1217 PM 1406 p 253 p 

308 F 1378 T 1408 F 287 p 

396 PM 1437 M 288 PM 

410 p 1438 M 289 PM 

411 p Georgia 1439 M 326 T 

422 M 335 M 

423 M 761 p 336 M 

440 PM 841 p Massachusetts, 346 F 

503 F Hartford basin 384 p 

528 M 390 p 

537 M Maritime 56 PM 548 p 

582 PM 179 F 552 F 

596 p 643 p 247 M 647 F 

613 p 645 F 362 p 648 F 

619 p 689 p 364 p 682 p 

620 F 955 p 365 PM 711 p 

628 F 1024 F 370 p 712 PM 

632 A 1025 p 371 p 767 p 

687 p 1026 p 402 p 768 p 

691 F 1027 p 536 T 775 p 

708 PM 1227 A 537 M 864 T 

710 PM 587 T 878 p 

755 PM 592 p 879 p 

803 p Maryland 628 F 880 p 

806 F 697 M 901 p 

814 PM 316 F 703 p 929 F 

896 PM 332 A 757 M 930 F 

906 T 353 p 803 p 936 p 

915 p 389 M 806 F 945 M 

2-9 
Ref. Ref. Ref. Ref. Ref. Ref. Hef. Ref. 

No. Type No. Type No. Type No. Type 

New Jersey North Carolina, 95 T 610 p 

-Cont. Durham-Wadesboro- 323 p 660 PM 

Deep River basins 388 PM 661 PM 

1079 F 415 p 760 p 

1116 p 9 PM 416 PM 820 p 

1117 p 43 FM 439 F 824 M 

1152 F 57 T 445 PM 825 M 

1350 F 78 F 446 M 827 PM 

1358 F 88 p 447 p 828 M 

1373 F 191 T 449 M 872 p 

1431 p 197 T 461 p 873 p 

218 PM 500 M 874 p 

219 PM 610 p 876 p 

New York 256 T 638 PM 877 p 

268 A 662 PM 878 p 

5 F 533 A 826 M 879 p 

437 A 535 PM 874 p 886 p 

712 PM 700 A 885 F 898 PM 

713 p 701 p 886 p 899 PM 

810 T 912 p 1103 M 910 A 

936 p 958 PM 1104 PM 936 p 

973 PM 1032 A 1114 PM 1079 F 

1146 F 1033 A 1236 PM 1084 p 

1151 T 1034 p 1237 PM 1244 A 

1282 PM 1050 p 1240 PM 1245 A 

1358 F 1051 T 1241 p 1358 F 

1373 F 1066 PM 1242 M 1417 p 

1191 T 1246 PM 1418 p 

1219 T 1247 PM 1423 PM 

Morocco 1285 p 1418 p 1435 PM 

1413 A 

188 A 1415 p 

189 p 1443 p Pennsylvania, Pennsylvania, other 

378 p Newark basin 

808 p 606 p 

839 A North Carolina, 64 M 765 p 

840 p other 66 PM 1424 p 

67 p 1425 p 

182 PM 85 M 

North Carolina, 205 p 323 p 

Dan River basin 249 PM 335 M Regional 

1231 PM 336 M 

225 M 1275 p 346 F 38 p 

1001 T 446 M 49 p 

1232 PM 447 p 88 p 

1273 T Pennsylvania, 461 p 257 T 

1276 p Gettysburg basin 500 M 272 p 

1277 A 505 p 275 p 

1279 F 84 M 548 p 431 p 

2-~ 0 
Ref. Ref. H.ef. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

Regional 780 A Virginia, other 1250 p -Cont. 784 p 

786 T 217 p 

453 p 856 p 375 PM Maryland 588 p 913 M 650 PM 

589 p 959 PM 685 T 724 p 

597 p 1082 F 707 PM 1260 A 

743 p 1091 T 917 PM 

759 p 1287 PM 1092 p 

836 p 1432 M 1093 p Massachusetts, 

869 PM 1456 A 1095 p Hartford basin 

881 p 1096 A 

933 A 1257 p 402 p 

935 p Virginia, 1384 p 559 T 

937 A Danville basin 1395 p 1069 A 

939 p 1396 A 1224 p 1063 p 574 PM 1398 p 

1118 p 575 M 1399 M 1119 p 754 PM Massachusetts, 1120 p 846 M other 

1121 p 894 T KEYWORD: 1122 p 895 PM geochemistry 399 p 

1183 p 1028 M 

1029 M Connecticut 

1277 A Morocco South Carolina 1278 A 27 T 

30 p 91 T 

78 F 527 p 839 A 

208 p Virginia, 540 p 840 p 

841 p Farmville basin 633 T 

664 p 

190 PM 847 A New Jersey Virginia, 844 M 996 p Culpeper basin 845 PM 997 A 98 A 

1433 F 1037 p 285 p 

13 PM 1068 T 420 p 

83 M 1160 p 443 A 

248 F 1281 A 634 p 

316 F Virginia, 744 T 

337 M Richmond basin 852 p 

338 M Georgia 964 p 

354 M 181 p 989 p 

358 F 284 p 488 A 1011 A 

435 F 478 A 1036 p 

438 PM 479 PM 1037 p 

676 PM 481 M Maritime 1040 p 

742 A 482 A 1041 p 

746 p 558 p 333 p 1126 T 747 M 816 p 953 p 1234 p 748 p 921 p 954 p 1351 p 

749 p 1172 PM 1039 A 1354 p 

2-11 
Ref. Ref. Ref. Ref. Ref. H.e f. H.e f. Ref. 

No. Type No. Type No. Type No. Type 

New Jersey 520 p 1160 p 720 A 

-Cont. 527 p 1195 T 724 p 

540 p 1198 A 1195 T 

1356 A 559 T 1199 A 1198 A 

1360 p 579 A 1200 p 1199 A 

1367 A 583 p 1208 p 1200 p 

1368 p 608 p 1209 T 

1371 p 611 p 1211 T 

1372 p 633 T 1220 A 

634 p 1221 T Pennsylvania: 

664 p 1222 p Newark basin 

New York 668 A 1224 p 

669 A 1230 A 608 p 

97 T 671 T 1234 p 720 A 

212 T 686 T 1250 p 1195 T 

443 A 718 T 1260 A 1198 A 

720 A 1271 A 1199 A 

724 p 1281 A 1200 p 

North Carolina, 728 p 1284 p 1354 p 

Dan River basin 744 T 1351 p 1356 A 

839 A 1354 p 

27 T 840 p 1356 A 

30 p 847 A 1360 p Pennsylvania, 34 p 852 p 1367 A other 

35 p 867 p 1368 p 

90 p 905 p 1371 p 1108 A 

91 T 953 p 1372 p 

97 T 954 p 1401 T 

98 A 964 p 1402 A Regional 194 p 967 A 1403 p 

195 A 968 A 35 p 

212 T 989 p 90 p 

226 p 993 p North Carolina, 194 p 

228 p 996 p other 195 A 

280 T 997 A 345 p 

285 p 998 A 280 T 490 A 

315 A 1004 A 492 p 668 A 

318 A 1011 A 669 A 720 A 

333 p 1035 A 1045 A 967 A 

345 p 1036 p 1049 p 968 A 

399 p 1037 p 1221 T 993 p 

402 p 1039 A 1230 A 1004 A 

420 p 1040 p 1284 p 1035 A 

443 A 1041 p 1044 p 

471 A 1044 p Pennsylvania, 1046 A 

473 p 1045 A Gettysburg basin 1109 A 

487 p 1046 A 1208 p 

488 A 1049 p 34 p 1209 T 

489 p 1068 T 493 p 1211 T 

490 A 1069 A 579 A 1401 T 

491 p 1108 A 608 p 1402 A 

492 p 1109 A 611 p 1403 p 

493 p 1126 T 718 T 

2-_12 
H.e f. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

South Carolina Georgia 200 A 572 M 

357 T 612 A 

228 p 283 p 514 A 904 A 

471 A 328 T 536 T 946 p 

487 p 330 A 639 p 

491 p 331 p 800 A 

1220 A 841 p New York 

1221 T 843 p 

1222 p 977 p· Massachusetts, 562 M 

1284 p other 612 A 

702 p 

Maritime 261 T 704 T 

Virginia, 399 p 904 A 

Culpeper basin 58 p 946 p 

59 p 

473 p 223 p Morocco 

520 p 598 p North Carolina, 

583 p 675 p 517 p Dan River basin 

671 T 725 p 

728 p 1266 p 442 A 

1267 p New Jersey 

1346 p 

Virginia, other 2 p North Carolina, 

17 M Durham-Wadesboro489 p Maryland 18 M Deep River basins 

686 T 37 A 

99 M 116 M 3 PM 

100 M 117 M 41 A 

KEYWORD: geophysics 158 M 118 M 42 PM 

789 M 119 M 44 A 

Connecticut 120 M 94 p 

121 M 360 T 

14 A Massachusetts, 122 M 599 T 

15 A Deerfield basin 123 M 637 T 

186 A 270 p 651 p 

230 T 19 M 326 T 832 p 

351 p 20 M 344 T 1229 p 

680 A 21 M 37 3 A 

681 A 178 IVI 374 p 

698 A 184 A 532 p North Carolina, 

699 p 185 A 561 M other 

800 A 562 M 

802 p 563 M 112 PM 

1016 M Massachusetts, 564 lV1 283 p 

1019 M Hartford basin 565 M 329 p 

1404 T 566 M 823 p 

124 M 567 M 

125 M 568 M Pennsylvania, Florida 178 M 569 M Gettysburg basin 

184 A 570 IVl 

32 p 199 A 571 M 37 A 

2-13 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. T'ype No. Type 

Pennsylvania, 136 M 77 PM 357 T 

Gettysburg basin 137 M 1,12 PM 442 A 

-Cont. 138 M 283 p 451 T 

139 M 321 p 581 p 

72 p 140 M 329 p 650 PM 

74 p 141 M 470 p 675 p 

153 M 142 M 471 A 695 p 

154 M 143 M 841 p 702 p 

155 M 144 M 843 p 704 ,T 

156 M 145 M 1157 p 716 T 

157 M 146 M 740 A 

158 M 147 M 800 A 

159 M 148 M Virginia, 802 p 

160 M 149 M Culpeper basin 832 p 

161 M 150 M 841 p 

162 M 151 M 177 M 1016 M 

163 M 152 M 262 A 1019 M 

164 M 173 M 282 p 1020 p 

165 M 174 M 394 p 1111 p 

166 M 344 T 513 p 1180 T 

167 M 381 p 642 M 1254 T 

168 M 382 A 649 I\1 1256 p 

169 M 441 T 739 M 1269 A 

170 M 451 T 740 A 1434 A 

171 M 541 p 1448 M 

172 M 581 p 1458 T 

175 M 716 T Virginia, 176 M Danville basin geophysics, 789 M subkeyword: Regional 573 p magnetism 

Pennsylvania, 33 p ·14 A 

Newark basin 115 T Virginia, other 15 A 

271 p 17 M 

37 A 307 p 4 p 18 M 

72 p 309 p 217 p 19 M 

73 p 311 A 262 .A 20 M 

74 p 312 A 650 PM 21 M 

120 M 314 p 37 A 

121 M 342 p 42 PM 

122 M 511 p geophysics, 72 p 

126 M 694 p subkeyword: gravity c 7 3 p 

127 M 695 p 74 p 

128 M 6~6 A 42 PM 77 PM 

129 M 729 p 60 T 99 M 

130 lV1 1382 p 178 M 100 M 

131 M 199 A 115 T 

132 M 200 A 116 l\1 

133 M South Carolina 230 T 117 M 

134 M 282 p 118 M 

135 M 76 p 351 p 119 M 

. 2-14 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

geophysics, 171 M 696 A 1203 A subkeyword: 172 M 698 A 1204 A magnetism-Cont 173 M 699 p 1205 p 

174 M 702 p 1206 p 124 M 175 M 716 T 1207 A 125 M 176 M 725 p 1286 p 

126 M 177 M 726 p 1288 p 

127 M 184 A 727 p 1304 M 

128 M 185 A 729 p 1305 M 129 M 186 A 789 M 1306 M 130 M 203 p 823 p 1307 M 

131 M 217 p 843 p 1308 M 

132 M 223 p 849 T 1309 M 

133 M 261 T 868 T 1310 M 

134 M 271 p 891 M 1311 M 

135 M 282 p 892 M 1312 M 

136 M 307 p 940 p 1313 M 

137 M 309 p 955 p 1314 M 

138 M 311 A 978 M 1315 M 

139 M 312 A 979 M 1316 M 

140 M 314 p 980 M 1317 M 

141 M 329 p 981 M 1318 M 

142 M 342 p 982 M 1319 M 143 M 394 p 983 M 1320 M 

144 M 514 A 984 M 1321 M 

145 M 517 p 985 M 1322 M 

146 M 532 p 986 M 1323 M 

147 M 536 T 987 M 1324 M 

148 M 541 p 988 M 1325 M 

149 M 561 M 990 M 1326 M 

150 M 562 M 991 p 1327 M 

151 M 563 M 1007 M 1328 M 

152 M 564 M 1008 M 1329 M 

153 M 565 M 1009 M 1330 M 154 M 566 M 1012 M 1331 M 

155 M 567 M 1013 M 1332 M 

156 M 568 M 1014 M 1333 M 

157 M 569 M 1015 M 1334 M 

158 M 570 M 1016 M 1335 M 

159 M 571 M 1017 M 1337 M 

160 M 572 M 1018 M 1338 M 

161 M 581 p 1019 M 1341 M 

162 M 598 p 1020 p 1342 M 

163 M 639 p 1057 A 1343 M 

164 M 649 M 1064 A 1344 M 

165 M 650 PM 1083 A 1345 M 

166 M 651 p 1111 p 1348 p 

167 M 675 p 1170 p 1364 T 

168 M 680 A 1173 T 1365 p 

169 M 681 A 1201 T 1386 T 

170 M 695 p 1202 A 1387 A 

2-15 
Ref. Ref. Ref. Ref. Ref. Ref. No. Type No. Ref. Ref. Type No. Type No. Type 

geophysics, 694 p New York 1114 PM subkeyword: 841 p 

magnetism-Cont. 1270 PM 843 p 973 PM 1449 PM 904 A 1450 p 1454 p 946 p 

1462 p 977 p North Carolina 

1157 p 

1229 p 39 p Pennsylvania, geophysics, 1266 p 42 PM Newark basin subkeyword: 1267 p 94 p radioactivity 1346 p 360 T 108 p 1382 p 397 p 505 p 120 M 1404 T 637 T 807 PM 121 M 753 p 1022 PM 122 M 854 p 1084 p 123 M geophysics, 911 p 1449 PM 513 p subkeyword: SLAR 1158 p 

573 p 1443 p 

739 M 42 PM 

919 M Regional 1336 M KEYWORD: hydrology North Carolina, 1339 M Dan River basin 38 p 1340 M Connecticut 272 p 

911 p 

436 p 

geophysics, 664 p 

subkeyword: North Carolina, Virginia, resistivity Durham-Wadesboro- Culpeper basin Georgia Deep River basins 

3 PM 213 p 41 A 841 p 39 p 429 M 42 PM 843 p 42 PM 430 M 94 p 94 p 432 M 282 p 360 T Maryland 433 M 

397 p 653 p 

637 T 654 PM geophysics, 429 M 854 p 655 M subkeyword: 893 p 1158 p 656 M seismic profiles 924 p 1443 p 657 M 1459 M 671 T 4 p 730 p 32 p North Carolina, 731 M 41 A Massachusetts, other 732 p 42 PM Hartford basin 1459 M 44 A 753 p 1460 !VI 59 p 1132 T 

76 p 

112 PM New Jersey Pennsylvania, Virginia, 262 A Gettysburg basin Danville basin 322 p 923 p 

675 p 1431 p 652 PM 754 PM 

2-16 
H.e f. Ref. Ref. Ref. Ref. Ref. Ref. Ref. 

No. Type No. Type No. Type No. Type 

KEYWORD: isotopes North Carolina 501 A 556 p 

539 p 559 T 

Maritime 280 T 556 p 706 p 

594 p 944 p 

598 p 615 p 948 p 

Pennsylvania, 627 p 949 p 

Gettysburg basin 680 A 1174 p 

Pennsylvania, 688 p 1175 p 

Gettysburg basin 1243 p 708 PM 1268 T 

717 p 

34 p 814 PM 

579 A Pennsylvania, 992 A Massachusetts, 

Newark basin 999 p other 

1053 T 

Regional 1186 A 1176 A 261 T 

1296 p 1212 p 947 p 

967 A 1359 A 1280 T 

968 A 1417 p 

1208 p New Jersey 

1209 T 

Pennsylvania, Georgia 10 A 

other 61 p 

Virginia, 751 A 71 p 

Culpeper basin 234 p 761 p 114 p 

1289 p 198 F 

1261 A 339 p 

387 p 

Virginia, Mar it irne 391 p 

KEYWORD: Culpeper basin 392 p 

metamorphism 359 p 468 p 

750 A 953 p 483 p 

Connecticut 1177 p 954 p 507 p 

1178 p 1374 p 542 p 

699 p 543 p 

734 A 545 p 

KEYWORD: Massachusetts, 546 p 

mineralogy Deerfield basin 584 p 

New Jersey 640 p 

185 A 672 p 

640 p Connecticut 370 p 763 p 

773 p 556 p 770 p 

1011 A 27 T 771 p 

1357 A 28 p 773 p 

1359 A 30 p Massachusetts, 790 p 

1360 p 192 p Hartford basin 830 p 

206 p 831 p 

244 PM 28 p 848 p 

New York 254 p 361 p 871 p 

273 A 364 p 964 p 

81 A 404 p 366 p 976 F 

82 A 455 p 370 p 989 p 

2-17 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

New Jersey Pennsylvania, 101 p 858 T -Cont. Gettysburg basin 180 F 860 T 

292 A 861 F 

1011 A 291 p 890 p 916 p 

1131 p 355 T 908 p 920 p 

1150 p 450 F 914 A 928 p 

1152 F 585 p 962 A 943 F 1155 p 608 p 1094 p 1090 A 

1252 A 721 A 1177 p 

1253 T 722 p 1178 p 

1291 p 1238 p 1179 p Maritime 

1351 p 1243 p 1299 A 

1355 p 1248 p 1457 p 644 p 

1356 A 938 A 

1357 A Pennsylvania, Virginia, 1026 p 

1359 A Newark basin Danville basin 

1360 p 

1362 A 413 p 11 p Massachusetts, 1368 p 450 F 1030 p Deerfield basin 

1372 p 518 p 1422 p 585 p 243 p 

1429 p 608 p Virginia, other 370 p 

1442 A 1062 p 371 p 

1186 A 238 A 

1187 p 686 T 

New York 1228 p 966 p Massachusetts, 

1356 A 1092 p Hartford basin 

1359 A 1257 p 

209 A 1362 A 243 p 

1417 p 258 p 

1421 p South Carolina 370 p 

North Carolina, 371 p 

Durham-Wadesboro- 487 p 593 p 

Deep River basins Pennsylvania, 776 T 

other 1031 A 

343 A Morocco 

578 p 234 p 601 T 1289 p KEYWORD: 263 p 602 p paleontology 

666 A 

667 A Regional Connecticut New Jersey 670 T 

227 T 22 p 104 p 

512 T 243 p 241 p North Carolina, 538 p 258 p 497 p 

other 296 p 548 p 

349 p 552 F 

280 T Virginia, Culpeper 593 p 605 p 340 A basin 596 p 648 F 

665 A 812 p 920 p 

1255 T 86 F 813 p 928 p 

2-~8 
Ref. Ref. Ref. H.e f. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

New Jersey 1419 p Virginia, 235 p -Cont. Culpeper basin 596 p 

615 p 

929 F Pennsylvania, 24 A 623 A 

930 F Newark basin 36 p 632 A 

932 A 485 A 633 T 

936 p 103 p 486 T 688 p 

106 p 778 A 705 T 

107 p 1397 p 764 A New York 196 p 847 A 

264 p 862 A 

936 p 548 p Virginia, 992 A 

736 A Danville basin 994 p 

820 p 995 p North Carolina, 822 p 24 A 996 p Dan River basin 928 p 934 p 1053 T 

932 A 1085 p 1065 A 

934 p 936 p 1086 T 1124 p 

1085 p 1127 p 1185 T 

1086 T 1418 p 1280 T 

1232 PM 1419 p Virginia, 1281 A 

1435 PM Farmville basin 1370 p 

1388 T North Carolina, 24 A 1389 p Durham-Wadesboro- 1298 A 1390 p Deep River basins Regional 

43 FM 109 p Virginia, Georgia 51 A 193 p Richmond basin 

604 p 242 p 488 A 

957 A 257 T 24 A 751 A 

958 PM 259 p 89 A 

1166 p 263 p 816 p 

401 p 1172 PM Maritime 

508 p 

North Carolina, 811 p 735 T other 818 p Virginia, other 952 A 

857 p 953 p 

603 T 859 A 23 T 954 p 

926 T 707 PM 1039 A 

933 A 1095 p 1250 p Pennsylvania, 937 A 1398 p 

Gettysburg basin 939 p 

1059 p Maryland 106 p 1089 A KEYWORD: petrology 264 p 1154 p 724 p 

586 p 1283 A Connecticut 1259 T 

1247 PM 1297 p 1260 A 

1376 p 1366 p 27 T 

1377 p 1379 p 29 p 

1418 p 1400 A 30 p 

2-19 
No. 

Ref. 

Type 

Ref. Ref. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. Type 

Massachusetts, 

Deerfield basin 

1367 A 718 T South Carolina 1368 p 720 A 

1369 p 721 A 228 p 370 p 1370 p 722 p 487 p 1389 p 1371 p 724 p 1220 A 1390 p 1372 p 1195 T 1222 p 1405 T 1388 T 1198 A 

1389 p 1199 A 

1390 p Massachusetts, 1200 p Virginia, 

Hartford 1248 p Culpeper basin basin 1290 p New York 292 A 361 p 

742 A 364 p 82 A Pennsylvania, 786 T 366 p 97 T Newark basin 1094 p 368 p 212 T 1179 p 370 p 585 p 1261 A 402 p 608 p 1299 A 515 T North Carolina, 720 A 1370 p 560 A Durham-Wadesboro- 1187 p 1457 p 705 T Deep River basins 1195 T 1268 T 1198 A 1388 T 578 p 1199 A Virginia, other 1389 p 666 A 1200 p 1390 p 667 A 1290 p 238 A 670 T 1417 p 1092 p 

Morocco KEYWORD: North Carolina, Pennsylvania, 91 T radiometric age other other 839 A Connecticut 340 A 1108 A 

665 A New 1064 A Jersey 669 A 1171 p 777 T Regional 1190 T 61 p 1045 A 1262 p 391 p 1049 p 35 p 584 p 1230 A 195 A 640 p 1255 T 227 T Maritime 744 T 1427 T 290 p 770 p 345 p 598 p 773 p 490 A 852 p 538 p Maryland 964 p Pennsylvania, 720 A 989 p Gettysburg basin 993 p 1262 p 1036 p 1004 A 1040 p 291 p 1038 A 1041 p 355 T 1047 A New Jersey 1126 T 585 p 1109 A 1182 A 608 p 1211 T 850 T 1214 p 611 p 1403 p 1171 p 

2-20 
Ref. Ref. 

Ref. Ref. Ref. Ref. Ref. Ref. No. Type 

No. Type No. Type No. Type 628 F 

840 Pennsylvania, p 1060 T 641 T 

Newark basin 850 T 1090 A 960 p 

865 p 1115 p 1070 p 

382 A 1064 A 1117 p 1097 A 

1171 p 1141 A 1133 T 

1190 T 1142 p 1149 T 

South Carolina 1262 p 1389 p 1213 T 

1375 A 1390 p 1389 p 

719 p 1390 p 

1407 A 

radiometric age, Maritime 

Virginia, subkeyword: other 

Culpeper basin methods 616 p Morocco 

618 A 

1261 A 381 p 624 p 188 A 

382 p 625 A 189 p 

1190 T 689 p 378 p 

Virginia, other 690 p 530 T 

KEYWORD: 931 p 531 A 

1375 A sedimentation 972 T 663 T 

808 p 

851 p 

radiometric age, Connecticut Massachusetts, 1361 p 

subkeyword: Ar /Ar Deerfield basin 

dating 27 T 

30 p 47 p New Jersey 

270 p 80 A 522 p 

719 p 211 A 525 T 2 p 

1261 A 293 p 556 p 12 T 

334 T 715 T 80 A 

452 A 788 p 104 p 

radiometric age, 454 T 1225 T 222 PM 

subkeyword: K/Ar 556 p 1226 p 293 p 

dating 617 A 1389 p 390 p 

619 p 1390 p 548 p 

2 p 620 F 1405 T 673 T 

33 p 621 p 1406 p 790 p 

223 p 622 p 835 F 

271 p 623 A 879 p 

315 A 626 A Massachusetts, 882 A 

328 T 627 p Hartford basin 927 p 

330 A 628 F 929 F 

331 p 629 A 45 F 932 A 

373 A 691 F 220 T 956 p 

374 p 709 A 293 p 1000 p 

470 p 710 PM 327 T 1117 p 

471 A 762 A 362 p 1152 F 

551 p 804 p 383 p 1210 A 

598 p 858 T 525 T 1253 T 

612 A 906 T 556 p 1300 p 

727 p 907 A 617 A 

2-2~ 
Ref. Ref. Ref. Ref. Ref. Ref. Ref. lte f. No. Type No. Type No. Type No. Type 

New Jersey North Carolina, 1303 A 576 T 

-Cont. other 1352 p 577 A 

1353 p 778 A 

1302 p 777 T 1356 A 779 p 

1303 A 963 T 1358 F 781 A 

1350 F 1275 p 1362 A 782 A 

1352 p 1427 T 1420 p 785 p 

1353 p 1455 p 1456 A 

1355 p 1457 p 

1356 A Pennsylvania, 

1358 F Gettysburg basin Pennsylvania, 1362 A other Virginia, 1389 p 380 p Danville basin 

1390 p 439 F 927 p 

1436 p 447 p 895 PM 

462 T 934 p 

463 A Regional 1086 T 

New York 464 p 1277 A 

465 A 88 p 

941 T 466 A 275 p 

1358 F 874 p 418 p Virginia, 

883 A 419 F Farmville basin 

1455 p 466 A 

North Carolina, 467 A 1298 A 

Dan River basin 692 p 

Pennsylvania, 781 A 

934 p Newark basin 801 p Virginia, 1086 T 835 F Richmond basin 

1274 A 222 PM 836 p 

1276 p 380 p 837 p 482 A 

1277 A 444 T 926 T 

447 p 933 A 

460 T 1058 p Virginia, other North Carolina, 462 T 1119 p 

Durham-Wadesboro- 464 p 1121 p 686 T 

Deep River basins 465 A 1349 p 1093 p 

466 A 1361 p 1396 A 

31 T 548 p 1398 p 

88 p 673 T 

266 T 822 p South Carolina 

267 A 827 PM KEYWORD: 

268 A 873 p 472 p stratigraphy 325 T 874 p 

600 A 879 p Virginia, Connecticut 

602 p 882 A Culpeper basin 

756 A 883 A 349 p 

958 PM 910 A 224 p 710 PM 

1052 p 932 A 485 A 942 T 

1414 A 1300 p 486 T 1134 F 

1415 p 1302 p 555 T 1143 F 

2-22 
Mef. ¥ef. .H.e f . Ref . Ref. Ref. 

Ref. Ref. o. ype No. Type No. Type No. Type 

North Carolina, 1400 A 424 p 

Maritime Dan River basin 504 A 

804 p 

459 p 1001 T Virginia, 805 p 

645 F 1251 p Culpeper basin 833 A 

938 A 1276 p 896 PM 

1025 p 438 PM 975 M 

1026 p 784 p 1002 T 

North Carolina, 1100 M 

Durham-Wadesboro- 1117 p 

Maryland Deep River basins Virginia, 1123 T 

Danville basin 1125 p 

784 p 1066 PM 1134 F 

1251 p 575 M 1137 A 

895 PM 1143 F 

Massachusetts, 1278 A 1147 p 

Deerfield basin Pennsylvania, 1148 T 

Gettysburg basin 1168 PM 

370 p Virginia, 1410 p 

371 p 461 p Richmond basin 1445 A 

1406 p 1418 p 1446 A 

1172 PM 1447 A 

Massachusetts, Pennsylvania, 

Hartford basin Newark basin Virginia, other Georgia 

45 F 461 p 1095 p 842 A 

362 p 872 p 977 p 

370 p 876 p KEYWORD: structure 

371 p 877 p Maritime 

1149 T 878 p Connecticut 

1218 T 936 p 58 p 

1407 A 1418 p 80 A 59 p 

276 p 1027 p 

294 p 1267 p 

New Jersey Regional 296 p 

297 p Massachusetts, 

443 A 453 p 298 p Deerfield basin 

878 p 511 p 299 p 

929 F 881 p 302 p 47 p 

930 F 926 T 303 PM 48 p 

936 p 933 A 305 p 229 p 

935 p 320 p 475 p 

937 A 351 p 679 p 

New York 939 p 407 p 1410 p 

1063 p 408 A 1440 A 

443 A 1121 p 409 p 1441 T 

713 p 1349 p 410 p 1447 A 

936 p 

2-23 
Ref. Ref. H.e f. Ref. Ref. Ref. Ref. Ref. No. Type No. Type No. Type No. Type 

Massachusetts, 1055 A 1265 A 936 p Hartford basin 1056 F 1137 A 

1117 p 1156 A 56 PM 1137 A North Carolina, 1239 p 229 p 1139 p other 1420 p 833 A 1446 A 1435 PM 1137 A 205 p 1462 p 1218 T 249 PM 

1268 T New York 1048 p 

1410 p 1269 A Regional 1440 A 612 A 

1445 A 791 A 38 p 1447 A 809 p Pennsylvania, 49 p 

904 A Gettysburg basin 50 A 

936 p 102 A Morocco 946 p 240 p 272 p 

1054 p 379 A 300 p 50 A 1282 PM 380 p 301 p 189 p 388 PM 307 p 840 p 445 PM 310 A 

North Carolina, 500 M 683 p 

Dan River basin 610 p 684 p New Jersey 884 p 694 p 

442 A 886 p 781 A 6 A 903 F 1104 PM 783 p 67 p 1180 T 805 p 79 T 1236 PM 835 F 80 A North Carolina, 1239 p 838 A 198 F Durham-Wadesboro- 1241 p 853 p 253 p Deep River basins 866 A 344 T 1119 p 384 p 43 FM Pennsylvania, 1121 p 385 p 44 A Newark basin 1135 p 386 p 219 PM 1136 A 547 A 236 T 66 PM 1140 p 548 p 395 T 67 p 1144 A 557 p 476 A 105 p 1145 A 612 A 496 T 107 p 1412 p 636 p 534 T 344 T 1426 p 711 p 535 PM 379 A 1444 p 768 p 599 T 380 p 817 p 651 p 500 M 833 A 832 p 548 p South Carolina 834 A 912 p 610 p 835 F 958 PM 661 PM 842 A 880 p 1033 A 716 T 1048 p 882 A 1034 p 827 PM 1157 p 904 A 1050 p 875 p 936 p 1052 p 882 A 946 p 1181 T 886 p Virginia, 1054 p 1264 T 887 p Culpeper basin 

428 M 

2-24 
Ref. ltef. Ref. Ref. Ref. H.ef. Ref. Ref. 

No. Type No. Type No. Type No. Type 

Virginia, Gulf Coast New York 836 p 

Culpeper basin 838 A 

-Cont. 1005 p 1054 p 853 p 

430 M 1006 p 866 A 

7 37 M 909 p 

741 A North Carolina, 1005 p 

779 p Maritime Dan River basin 1136 A 

781 A 1140 p 

1432 M 58 p 207 p 1144 .A 

59 p 1145 A 

644 p 1205 p 

Virginia, 675 p North Carolina, 1263 p 

Danville basin 1347 p Durham-Wadesboro- 1348 p 

Deep River basins 1361 p 

574 PM 1430 A 

787 T Maryland 40 A 1444 p 

895 PM 

950 T 

Pennsylvania, South Carolina 

Virginia, Gettysburg basin 

f'armv i 11 e basin Massachusetts, 521 p 

Deerfield basin 380 p 

1434 A 

1447 A 

Pennsylvania, 

Virginia, Newark basin 

Richmond basin Massachusetts, 

Hartford basin 380 p 

477 A 1137 A 

479 PM 1137 A 

480 A 1447 A 

1172 PM Regional 

Virginia, other Morocco 38 p 

90 p 

469 A 91 T 204 p 

1095 p 187 T 271 p 

1257 p 189 p 307 p 

1396 A 531 A 310 A 

1361 p 311 A 

KEYWORD: tectonics 312 A 

313 A 

Connecticut New Jersey 372 p 

519 p 

110 A 384 p 683 p 

409 p 386 p 684 p 

474 p 835 F 695 p 

1137 A 1054 p 729 p 

1205 p 1056 F 758 p 

1446 A 1137 A 801 p 

1447 A 1446 A 835 F 

2-25 

SECTION 3. MAP-TYPE INDEX 

Ref No. Scale Ref No. Scale 

153 (1:24,000) GEOPHYSICS MAPS 154 (1:24,000) Map Type: aeromagnetism 155 (1:24,000) 

156 (1:24,000) 17 (1:31,680) 157 (1:24,000) 18 (1:31,680) 158 (1:24,000) 19 (1:24,000) 159 (1:24,000) 20 (1:24,000) 160 (1:24,000) 

21 (1:24,000) 161 (1:24,000) 42 none given 162 (1:24,000) 

43 (1:250,000) 163 (1:24,000) 

77 (1:222,222) 164 (1:24,000) 

99 (1:24,000) 165 (1:24,000) 

100 (1:24,000) 166 (1:24,000) 

116 (1:24,000) 167 (1:24,000) 117 (1:24,000) 168 (1:24,000) 118 (1:24,000) . 169 (1:24,000) 119 (1:24,000) 170 (1:24,000) 120 (1:24,000) 171 (1:24,000) 121 (1:24,000) 172 (1:24,000) 122 (1:24,000) 173 (1:24,000) 123 (1:24,000) 174 (1:24,000) 124 (1:24,000) 175 (1:24,000) 125 (1:24,000) 176 (1:24,000) 126 (1:24,000) 177 (1:24,000) 127 (1:24,000) 281 (1:1,000,000) 128 (1:24,000) 561 (1:125,000) 129 (1:24,000) 562 (1:31,680) 130 (1:24,000) 563 (1:31,680) 131 (1:24,000) 564 (1:31,680) 132 (1:24,000) 565 (1:31,680) 

133 (1:24,000) 566 (1:31,680) 

134 (1:24,000) 567 (1:31,680) 

135 (1:24,000) 568 (1:31,680) 

136 (1:24,000) 569 (1:31,680) 

137 (1:24,000) 570 (1:31,680) 138 (1:24,000) 571 (1:31,680) 139 (1:24,000) 572 (1:31,680) 

140 (1:24,000) 649 (1:125,000) 141 (1:24,000) 650 (1:62,500) 142 (1:24,000) 789 (1:62,500) 

143 (1:24,000) 891 (1:24,000) 144 (1:24,000) 892 (1:24,000) 

145 (1:24,000) 978 (1:24,000) 

146 (1:24,000) 979 (1:24,000) 

147 (1:24,000) 980 (1:31,680) 

148 (1:24,000) 981 (1:31,680) 

149 (1:24,000) 982 (1:31,680) 

150 (1:24,000) 983 (1:31,680) 

151 (1:24,000) 984 (1:24,000) 

152 (1:24,000) 

3-1 
Ref No. Scale Ref No. Scale 

Map type: aeromagnet ism 1339 (1:125,000) 

-Cont. 1340 (1:125,000) 

1341 (1:125,000) 

985 (1:24,000) 1342 (1:250,000) 

986 (1:24,000) 1343 (1:48,000) 

987 (1:24,000) 1344 (1:48,000) 

988 (1:24,000) 1345 (1:125,000) 

1007 (1:24,000) 

1008 (1:24,000) 

1009 (1:24,000) Map Type: gravity 

1012 (1:24,000) 

1013 (1:24,000) 42 none given 

1014 (1:24,000) 178 (1:250,000) 

1015 (1:24,000) 650 (1:62,500) 

1016 (1:24,000) 1448 (1:125,000) 

1017 (1:24,000) 

1018 (1:24,000) 

1019 (1:24,000) Map Type: other geophysics maps 

1304 (1:24,000) 

1305 (1:24,000) 3 (1:769,231) basement depth contour 

1306 (1:24,000) 642 (1:48,000) landsat 

1307 (1:24,000) 739 (1 :125 ,000) aeroradioactivity 

1308 (1:24,000) 919 (1:125,000) aeroradioactivity 

1309 (1:24,000) 1249 (1:100,000) seismicity 

1310 (1:62,500) 1336 (1:24,000) aeroradioactivity 

1311 (1:24,000) 

1312 (1:62,500) All geophysics maps - 1313 (1:24,000) sorted by geographic area 

1314 (1:24,000) 

1315 (1:24,000) Connecticut 

1316 (1:24,000) 

1317 (1:62,500) 984 (1:24,000) 

1318 (1:24,000) 985 (1:24,000) 

1319 (1:24,000) 986 (1:24,000) 

1320 (1:24,000) 987 (1:24,000) 

1321 (1:24,000) 988 (1:24,000) 

1322 (1:24,000) 1015 (1:24,000) 

1323 (1:24,000) 1016 (1:24,000) 

1324 (1:24,000) 1019 (1:24,000) 

1325 (1:24,000) 1304 (1:24,000) 

1326 (1:24,000) 1305 (1:24,000) 

1327 (1:24,000) 1306 (1:24,000) 

1328 (1:24,000) 1307 (1:24,000) 

1329 (1:24,000) 1308 (1:24,000) 

1330 (1:24,000) 1311 (1:24,000) 

1331 (1:62,500) 1313 (1:24,000) 

1332 (1:62,500) 1314 (1:24,000) 

1333 (1:62,500) 1315 (1:24,000) 

1334 (.1:62,500) 1316 (1:24,000) 

1335 (1:50,000) 1318 (1:24,000) 

1337 (1:250,000) 1319 (1:24,000) 

1338 (1:250,000) 

3-2 
Ref No. Scale Ref No. Scale 

Connecticut-Cont. 

979 (1:24,000) 

1320 (1:24,000) 1007 (1:24,000) 1321 (1:24,000) 1008 (1:24,000) 

1322 (1:24,000) 1012 (1:24,000) 

1323 (1:24,000) 1016 (1:24,000) 

1324 (1:24,000) 1017 (1:24,000) 

1325 (1:24,000) 1018 (1:24,000) 

1326 (1:24,000) 1019 (1:24,000) 

1327 (1:24,000) 1336 (1:24,000) 

1328 (1:24,000) 

1329 (1:24,000) 

1330 (1:24,000) 

New Jersey 

Georgia 17 (1:31,680) 

18 (1:31,680) 

281 (1:1,000,000) 116 (1:24,000) 

117 (1:24,000) 

118 (1:24,000) 

Maryland 119 (1:24,000) 

120 (1:24,000) 

99 (1:24,000) 121 (1:24,000) 

100 (1:24,000) 122 (1:24,000) 

158 (1:24,000) 123 (1:24,000) 

789 (1:62,500) 561 (1:125,000) 

919 (1:125,000) 562 (1:31,680) 

1334 (1:62,500) 563 (1:31,680) 

1345 (1:125,000) 564 (1:31,680) 

565 (1:31,680) 

566 (1:31,680) Massachusetts, Deerfield basin 567 (1:31,680) 

568 (1:31,680) 

19 (1:24,000) 569 (1:31,680) 

20 (1:24,000) 570 (1:31,680) 

21 (1:24,000) 571 (1:31,680) 

178 (1:250,000) 572 (1:31,680) 

891 (1:24,000) 980 (1:31,680) 

892 (1:24,000) 981 (1:31,680) 

1009 (1:24,000) 982 (1:31,680) 

1013 (1:24,000) 983 (1:31,680) 

1014 (1:24,000) 1249 (1:100,000) 

1309 (1:24,000) 1342 (1:250,000) 

1336 (1:24,000) 

Massachusetts, Hartford basin New York 

124 (1:24,000) 562 (1:31,680) 

125 (1:24,000) 981 (1:31,680) 

178 (1:250,000) 982 (1:31,680) 

978 (1:24,000) 983 (1:31,680) 

3-3 
Ref No. Scale 

North Carolina, Dan River basin 

1337 (1:250,000) 

1339 (1:250,000) 

North Carolina, Durhrum-WadesboroDeep River basins 

3 (1:769,231) 

42 none given 

43 (1:250,000) 

1317 (1:62,500) 

1331 (1:62,500) 

1332 (1:62,500) 

1333 (1:62,500) 

1335 (1:250,000) 

1338 (1:250,000) 

1340 (1:250,000) 

North Carolina, other 

281 (1:1,000,000) 

Pennsylvania, Gettysburg basin 

153 (1:24,000) 

154 (1:24,000) 

155 (1:24,000) 

156 (1:24,000) 

157 (1:24,000) 

158 (1:24,000) 

159 (1:24,000) 

160 (1:24,000) 

161 (1:24,000) 

162 (1:24,000) 

163 (1:24,000) 

164 (1:24,000) 

165 (1:24,000) 

166 (1:24,000) 

167 (1:24,000) 

168 (1:24,000) 

169 (1:24,000) 

170 (1:24,000) 

171 (1:24,000) 

172 (1:24,000) 

175 (1:24,000) 

176 (1:24,000) 

789 (1:62,500) 

1016 (1:24,000) 

1019 (1:24,000) 

3-4 

Ref No. Scale 

Pennsylvania, Newark basin 

120 (1:24,000) 

121 (1:24,000) 

122 (1:24,000) 

126 (1:24,000) 

127 (1:24,000) 

128 (1:24,000) 

129 (1:24,000) 

130 (1:24,000) 

131 (1:24,000) 

132 (1:24,000) 

133 (1:24,000) 

134 (1:24,000) 

135 (1:24,000) 

136 (1:24,000) 

137 (1:24,000) 

138 (1:24,000) 

139 (1:24,000) 

140 (1:24,000) 

141 (1:24,000) 

142 (1:24,000) 

143 (1:24,0UO) 

144 (1:24,000) 

145 (1:24,000) 

146 (1:24,000) 

147 (1:24,000) 

148 (1:24,000) 

149 (1:24,000) 

150 (1:24,000) 

151 (1:24,000) 

152 (1:24,000) 

173 (1:24,000) 

174 (1:24,000) 

Regional 

869 (1:5,000,000) 

South Carolina 

3 (1:769,231) 

42 none given 

43 (1:250,000) 

1317 (1:62,500) 

1331 (1:62,500) 

1332 (1:62,500) 

1333 (1:62,500) 

1335 (1:250,000) 

1338 (1:250,000) 
Ref No. Scale 

South Carolina-Cont. 

1340 (1:250,000) 

77 (1:222,222) 

281 (1:1,000,000) 

Virginia, Culpeper basin 

177 (1:24,000) 

642 (1:48,000) 

649 (1:125,000) 

739 (1:125,000) 

919 (1:125,000) 

1343 (1:48,000) 

1344 (1:48,000) 

1345 (1:125,000) 

1448 (1:125,000) 

Virginia, Danville basin 

1310 (1:62,500) 

Virginia, Richmond basin 

1341 (1:125,000) 

Virginia, other 

650 (1:62,500) 

1312 (1:62,500) 

GEOLOGIC MAPS - sorted by geographic area 

Connecticut 

7 

92 

93 

183 

201 

244 

245 

246 

247 

265 

303 

(1:31,680) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:57,600) 

(1:31,680) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:503,000) 

3-5 

Ref No. 

396 

422 

423 

440 

456 

457 

516 

523 

524 

528 

537 

582 

635 

664 

708 

710 

755 

814 

869 

869 

896 

969 

975 

1010 

1100 

1129 

1130 

1161 

1162 

1163 

1164 

1165 

1168 

1188 

1216 

1217 

Florida 

Scale 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:31,680) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:31,680) 

(1:24,000) 

(1:250,000) 

(1:126,720) 

(1:126,720) 

(1:24,000) 

(1:24,000) 

(1:100,000) 

(1:5,000,000) 

(1:63,360) 

(1:24,000) 

(1:24,000) 

(1:15,840) 

(1:250,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

(1:24,000) 

869 (1:250,000) 

869 (1:100,000) 

Georgia 

237 (1:1,968,925) 

869 (1:250,000) 

869 (1:100,000) 
Ref No. Scale 

Gulf Coast 

869 (1:5,000,000) 

869 (1:250,000) 

Maritime 

869 

869 

Maryland 

389 

425 

426 

659 

738 

869 

869 

1067 

(1:100,000) 

(1:5,000,000) 

(1:24,000) 

(1:62,500) 

(1:62,500) 

(1:62,500) 

(1:125,000) 

(1:100,000) 

(1:5,000,000) 

(1:62,500) 

Massachusetts, Deerfield basin 

53 (1:31,680) 

54 (1:31,680) 

55 (1:31,680) 

795 (1:24,000) 

796 (1:24,000) 

798 (1:24,000) 

869 (1:250,000) 

869 (1:100,000) 

1437 (1:31,680) 

1438 (1:31,680) 

1439 (1:31,680) 

Massachusetts, Hartford basin 

56 (1:31,680) 

247 (1:24,000) 

365 (1:125,000) 

537 (1:24,000) 

697 (1:24,000) 

757 (1:24,000) 

792 (1:24,000) 

793 (1:24,000) 

794 (1:24,000) 

797 (1:24,000) 

799 (1:24,000) 

869 (1:5,000,000) 

3-6 

Hef No. 

869 

969 

1162 

Scale 

(1:250,000) 

(1:24,000) 

(1:24,000) 

Massachusetts, other 

869 

869 

1169 

Morocco 

(1:250,000) 

(1:5,000,000) 

(1:31,680) 

869 (1:250,000) 

869 (1:100,000) 

New Jersey 

65 (1:125,000) 

70 (1:125,000) 

222 (1:506,880) 

288 (1:125,000) 

289 (1:538,560) 

335 (1:24,000) 

336 (1:24,000) 

712 (1:633,600) 

869 (1:100,000) 

869 (1:250,000) 

945 (1:24,000) 

New York 

712 (1:633,600) 

869 (1:5,000,000) 

869 (1:250,000) 

973 bar scale only 

1282 (1:31,680) 

North Carolina, Dan River 

225 (1:130,000) 

869 (1:5,000,000) 

869 (1:250,000) 

1232 (1:62,500) 
Ref No. Scale 

North Carolina, Durham-WadesboroDeep River basins 

9 (1:64,000) 

218 (1:63,360) 

219 (1:63,360) 

535 (1:126,720) 

869 (1:5,000,000) 

869 (1:250,000) 

958 (1:100,000) 

1066 (1:96,000) 

North Carolina, other 

112 (1:3,960,000) 

182 (1:97,477) 

249 (1:62,500) 

869 (1:100,000) 

869 (1:5,000,000) 

1231 (1:62,500) 

Pennsylvania, Gettysburg basin 

84 (1:24,000) 

388 (1:24,000) 

416 (1:25,344) 

445 (1:24,000) 

446 (1:24,000) 

449 (1:24,000) 

498 (1:63,360) 

500 (1:24,000) 

609 (1:63,360) 

638 (1:24,000) 

652 (1:62,500) 

662 (1:62,500) 

826 (1:24,000) 

869 (1:250,000) 

869 (1:5,000,000) 

1103 (1:24,000) 

1104 (1:24,000) 

1114 (1:50,000) 

1236 (1:62,500) 

1237 (1:62,500) 

1240 (1" = 2 miles) 

1242 (1:62,500) 

1246 (1:62,500) 

1247 none given 

1270 (1:50,000) 

1449 (1:50,000) 

Ref No. Scale 

Pennsylvania, Newark basin 

64 (1:62,500) 

66 (1:62,500) 

85 (1:24,000) 

222 (1:506,880) 

335 (1:24,000) 

336 (1:24,000) 

446 (1:24,000) 

498 (1:63,360) 

500 (1:24,000) 

660 (1:62,500) 

661 (1:62,500) 

807 (1:62,500) 

824 (1:24,000) 

825 (1:24,000) 

827 (1:24,000) 

828 (1:24,000) 

869 (1:250,000) 

869 (1:100,000) 

898 (1:62,500) 

899 (1:62,500) 

1022 (1:125,000) 

1194 (1:62,500) 

1423 (1:62,500) 

1435 (1:62,500) 

1449 (1:50,000) 

Pennsylvania, other 

869 (1:5,000,000) 

869 (1:100,000) 

Regional 

869 (1:100,000) 

869 (1:5,000,000) 

869 (1:250,000) 

South Carolina 

77 (1:540,541) 

112 (1:3,960,000) 

869 (1:250,000) 

869 (1:100,000) 

Virginia, Culpeper basin 

13 (1:62,500) 

83 (1:62,500) 

3-7 
Ref No. Scale Ref No. Scale 

Virginia, other 

Virginia, Culpeper basin 

-Cont. 375 (1:62,500) 

650 (1:62,500) 

269 (1:90,112) 654 (1:24,000) 

337 (1:48,000) 707 (1:24,000) 

338 (1:48,000) 869 (1:5,000,000) 

354 (1:24,000) 869 (1:250,000) 

427 (1:48,000) 917 (1:62,500) 

428 (1:48,000) 1399 (1:24,000) 

434 (1:125,000) 

438 (1:62,500) 

676 (1:125,000) OTHER MAPS 

738 (1:125,000) 

747 (1:24,000) 396 (1:24,000) 

869 (1:5,000,000) 429 (1:125,000) 

869 (1:100,000) 430 (1:48,000) 

913 (1:48,000) 432 (1:48,000) 

959 (1:31,680) 433 (1:48,000) 

1287 (1:24,000) 655 (1:48,000) 

1432 (1:24,000) 656 (1:48,000) 

657 (1:48,000) 

664 (1:250,000) 

Virginia, Danville basin 731 (1:48,000) 

737 (1:125,000) 

574 (1:24,000) 815 (1:500,000) 

575 (1:24,000) 896 (1:126,720) 

754 bar scale only 965 (1:500,000) 

846 (1:24,000) 1114 (1:50,000) 

869 (1:100,000) 1247 none given 

869 (1:5,000,000) 1459 (1:125,000) 

895 (1:62,500) 1460 (1:48,000) 

1028 (1:24,000) 

1029 (1:24,000) 

Virginia, Farmville basin 

190 (1:62,500) 

844 (1:24,000) 

845 (1:24,000) 

869 (1:5,000,000) 

869 (1:100,000) 

Virginia, Richmond basin 

479 (1:24,000) 

481 (1:24,000) 

869 (1:5,000,000) 

869 (1:100,000) 

1172 (1" = 2 miles) 

3-8 
BIBLIOGRAPHY 

A 

1 P : ABBOTT, C.M., 1970, Colonial copper mines: William and Mary Quarterly, v. 27, no. 2, p. 295-309. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Newark Basin, New Jersey 

2 P ABDEL-MONEM, A.A., AND KULP, J.L., 1968, Paleogeography and the source 

of sediments of the Triassic Basin, New Jersey, by K-Ar dating: 

Geological Society of America, Bulletin, v. 79, p. 1231-1242. 

SUMMARY: K-Ar data are used to trace the source of sediments to the Newark 

Basin. Sources are shown to be from nearly all possible directions, 

from the west as well as from the northeast and southwest. 

KEYWORDS: sedimentation 

geophysics 

radiometric age K/Ar dating 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Mise: sample locations 

DATA: Chern. (type of data): K-Ar data 

3 PM: ACKERMANN, H.D., BAIN, G.L., AND ZOHDY, A.A.R., 1976, Deep exploration 

of an East-Coast Triassic Basin using electrical resistivity: Geology, v. 4, p. 137-140. 

SUMMARY: Schlumberger sounding measurements are used to determine the depth 

of Triassic sediments in the basin and the nature of the TriassicPiedmont contact. Sediment depth is as great as 2300 meters. 

KEYWORDS: geophysics 

resistivity 

GEOGRAPHIC AREA: Durham-Wadesboro Basin, North Carolina 

MAPS: Section: 

Geophys: 

cross sections showing basin depth 

basement-depth contour map [1:769,231] 
Page 2 

4 P ACKERMANN, H.D., AND GRIM, M.S., 1977, Seismic refraction of the preCretaceous basement surface near the inner edge of the Coastal Plain 

in Stafford and King George Counties, Virginia: U.S. Geological 

Survey Open-File Report 77-480, 6 p. 

SUMMARY: Seismic refraction data indicate the presence of a buried Triassic 

basin in King George County beneath the Coastal Plain. The edge of 

this basin is delineated, and seismic velocities range from 4.5 to 

5.0 km/sec. 

KEYWORDS: geophysics 

seismic profiles 

buried basins 

GEOGRAPHIC AREA: Virginia 

MAPS: Geophys: seismic profiles 

Mise: survey locations 

5 F ADAMS, GEORGE F., 1958, The geology of the Triassic lowland of 

Southeastern New York and Northern New Jersey: New York State 

Geological Association, 30th Annual Meeting, Field Guidebook, p. 

27-40. 

SUMMARY: General field guide from Peekskill to the George Washington Bridge 

following the west side of the Hudson, then to Suffern, N.Y., Stony 

Point, N.Y., and back to Peekskill. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New York - New Jersey 

MAPS: Mise: physiographic diagrams 

6 A ADAMS, GEORGE F., 1980, Fault patterns at the Peapack offset of the 

Ramapo border fault, New Jersey Triassic: Geological Society of 

America, Abstracts with Programs, v. 12, p. 21. 

SUMMARY: Extension of the Ramapo fault between Bernardsville and Moggy Hollow 

is discussed suggesting that Brunswick sediments and Watchung 

basalts existed west of the position of the fault. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 3 

7 PM: AITKEN, JANET M., 1955, The bedrock geology of the Rockville Quadrangle: Connecticut Geology and Natural History Survey, Quadrangle 

Report 6, 55 p. 

SUMMARY: The Triassic, which occupies the western edge of the quadrangle, 

lacks outcrop; however, a graywacke conglomerate is described from 

near Case Ponds in the SW corner of the quadrangle. The brecciated 

and chloritized zone along the eastern border of the basin is 

described. 

KEYWORDS: bedrock geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Tolland Co., Hartford Co., 

Rockville Quad. 

MAPS: Geol: [1:31,680] 

DATA: Photos: outcrops 

8 P : ALLBEE, B.H., 1894, The famous Connecticut brownstone: Stone, v. 9, 

p. 1-31. 

KEYWORDS: sediments 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

9 PM: ALLEN, ELDON P., AND WILSON, WILLIAM F., 1968, Geology and mineral 

resources of Orange County, North Carolina: North Carolina Division 

of Mineral Resources, Bulletin 81, 58 p. 

SUMMARY: Triassic rocks occur in the SE corner of the county and are sandstone, arkose, siltstone, shale, and conglomerate of the Sanford 

Formation. Petrified wood fragments occur in the arkose. Contact 

metamorphic effects of several diabase dikes are described briefly. 

(The reader is referred to Harrington (1931), Reinemund (1955), and 

Mann, et al. (1975)). 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Durham Basin, North Carolina, Orange County 

MAPS: Geol: [1:64,000] 

DATA: Photos: outcrops 
Page 4 

10 A : ALLEN, F.I., 1915, The origin of thaumasite: Virginia Minerals, v. 

39, p. 134. 

SUMMARY: Thaumasite, as pseudomorphs after anhydrite, is described from the 

Burger's Quarry, West Patterson, New Jersey. 

KEYWORDS: mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Passaic County 

11 P : ALLEN, GARY C., 1967, Riebeckite occurrence in southern Virginia: 

Virginia Minerals, v. 13, no. 1, p. 10. 

SUMMARY: Authigenic riebeckite occurs surrounding hornblende in the sediments 

west of Danville. Its occurrence may indicate the presence of 

post-depositional mineral solutions. 

KEYWORDS: sediments 

mineralogy 

GEOGRAPHIC AREA: Danville Basin, Virginia, Pittsylvania County 

DATA: Photos: photomicrograph 

12 T ALLEN, J.F., JR., 1979, Paleocurrent and facies analysis of the 

Triassic Stockton Formation in western New Jersey: M.S. Thesis, 

Rutgers University, 83 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 5 

13 PM: ALLEN, R.M., JR., 1963, Geology and mineral resources of Greene and 

Madison Counties: Virginia Division of Mineral Resources, Bulletin 

78, 102 p. 

SUMMARY: The southern area of the basin in Madison County is mapped as consisting of undifferentiated arkosic sandstones, graywackes, and 

shales. Diabase intrusives and greenstone conglomerate are undifferentiated. A fault marks the western and eastern basin border, 

the latter faulted against Precambrian Catoctin greenstone. Several 

faults occur within the basin and offset the western border fault. 

(The area has been reinterpreted and mapped by Lee, K.Y.) 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: [1:62,500] 

DATA: Photos: outcrops 

14 A AMERIGIAN, C.A., AND WATKINS, N.D., 1976, Chemical overprinting of 

Mesozoic detrital remanent magnetism: a study using the East Berlin 

formation of northern Connecticut: Geological Society of America, 

Abstracts with Programs, v. 8, p. 752-753. 

SUMMARY: A 110 meter section reveals that only red sandstones have discordant directions of remanent magnetism due to chemical overprinting of detrital remanent magnetism. The entire sequence is 

weakly magnetized (normal polarity). 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

15 A AMERIGIAN, C.A., AND WATKINS, N.D., 1977, Paleoenvironmental control 

of primary and secondary components of magnetization in the East 

Berlin formation of Connecticut: American Geophysical Union, 

Transactions, v. 58, p. 728. 

SUMMARY: A 11 Clear relationship is observed between magnetic mineralogy and 

depositional environment. Some lithologies acquire a secondary 

component not found in other contemporaneous lithologies. Some 

of this overprinting may have taken place after tilting. 

Detailed correlation between magnetism and environment types is 

not provided. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 6 

16 P ANDERSON, JUDSON L., 1948, Cretaceous and tertiary subsurface geology: 

Maryland Department of Geology, Mines, and Water Resources, Bulletin 

4, 456 p. 

SUMMARY: Two of three drill holes in the Coastal Plain on Maryland•s Eastern 

Shore intersected Triassic rocks. These are: 6 miles east of 

Salisbury, Mt. Hermon Road, 5363-5498 feet, quartz conglomerate overlying red and green shales and arkosic sandstone; and 11 miles 

SE of the previous (Hammond well), 5 miles SW of Berlin, 6566-7151 

feet, basal conglomerate (quartzite, pegmatite, serpentine clasts) 

overlain by red-brown sandstone and shale and finally red and green shale. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Maryland 

MAPS: Section: well logs 

17M ANDREASEN, G.E., CHANDLER, E.J., AND OTHERS, 1963, Aeromagnetic map of 

the High Bridge Quadrangle, Warren and Hunterdon Counties, New Jersey: 

U.S. Geological Survey, Map GP-349. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 

18M ANDREASEN, G.E., HENDERSON, J.R., AND OTHERS, 1963, Aeromagnetic map 

of the Califon Quadrangle and part of the Gladstone Quadrangle, 

Hunterdon and Morris Counties, New Jersey: U.S. Geological Survey, 

Map GP-350. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 
Page 7 

19M ANDREASEN, G.E., AND ZANDLE, G.L., 1963, Aeromagnetic map of the 

Bernardston Quadrangle, Franklin County, Massachusetts, and Windham 

County, Vermont: U.S. Geological Survey, Map GP-430. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

20M ANDREASEN, G.E., AND ZANDLE, G.L., 1963, Aeromagnetic map of the 

Colrain Quadrangle, Franklin County, Massachusetts, and Windham 

County, Vermont: U.S. Geological Survey, Map GP-431. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

21M ANDREASEN, G.E., AND ZANDLE, G.L., 1963, Aeromagnetic map of the 

Northfield Quadrangle, Franklin County, Massachusetts, Windham County, 

Vermont, and Cheshire County, New Hampshire: U.S. Geological Survey, 

Map GP-435. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

22 P : ANTON, ROBERT E., 1956, Triassic fish of the Connecticut Valley: 

Compass, v. 33, p. 288-291. 

SUMMARY: A brief description of the occurrence of Triassic fish in 

Connecticut is given. The fossils are found in the Meriden 

Formation, a black, bituminous shale. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

DATA: Photos: sketches of fish fossils 
Page 8 

23 T : APPLEGATE, S.P., 1956, Additions and review of the paleobiology of the 

Triassic of Virginia: M.S. Thesis, University of Virginia. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Virginia 

24 A : APPLEGATE, SHELTON P., 1956, Distribution of Triassic fish in the 

Piedmont of Virginia: Virginia Journal of Science, v. 7, p. 322-323. 

SUMMARY: Fossil fish species are listed from localities in the Richmond, 

Farmville, Danville, and Culpeper Basins. Correlation based on fish 

is not advised until the species are further studied. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Richmond Basin, Farmville Basin, Danville Basin, Culpeper 

Basin, Virginia 

25 P APPLIN, PAULL., 1951, Preliminary report on buried pre-Mesozoic rocks 

in Florida and adjacent states: U.S. Geological Survey Circular 91, 

28 p. 

SUMMARY: Pre-Mesozoic rocks of Florida are investigated by available core, 

and the nature of the pre-Mesozoic surface is described. Brief 

descriptions of the intercepted Triassic rocks (diabase and 

sediment) are given. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Florida, Georgia, Alabama 

MAPS: Section: core log descriptions 

Geophys: pre-Mesozoic surface contour map 

Mise: well locations 

26 P APPLIN, P.L., AND APPLIN, E.R., 1965, The Comanche Series and associated rocks in the subsurface in Central and South Florida: U.S. 

Geological Survey Professional Paper 447, 84 p. 

SUMMARY: This report discusses the stratigraphy, structure, micropaleontology, and oil potential of the upper Jurassic through 

Cretaceous Fort Pierce and Comanche Series strata overlying the 

Precambrian basement in southern and central Florida. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Florida 
Page 9 

27 T APRIL, RICHARD H., 1978, Clay mineralogy and geochemistry of the 

Triassic- Jurassic sedimentary rocks of the Connecticut Valley: Ph.D. 

Thesis, University of Massachusetts, 206 p. 

KEYWORDS: sedimentation 

mineralogy 

sediments 

petrology 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

28 P APRIL, RICHARD H., 1980, Regularly interstratified chlorite/ 

vermiculite in contact metamorphosed red beds, Newark Group, 

Connecticut Valley: Clays and Clay Minerals, v. 28, no. 1, p. 1-11. 

SUMMARY: The mineral occurs in a 2.5-m wide contact zone within the East 

Berlin Fm. and adjacent to the Hampden basalt. Magnesium was 

supplied by the hydrothermal fluids, by weathering of basalt fragments, and by dissociation of dolomite in the sediment. The precursor mineral was illite or vermiculite. 

KEYWORDS: mineralogy 

sediments 

hornfels 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Connecticut 

MAPS: Mise: sample locations 

DATA: Chern. (type of data): major oxide 

Plots: x-ray diffraction; contact zone thermal gradient 
Page 10 

29 P APRIL, R.H., 1981, Clay petrology of the Upper Triassic/Lower Jurassic 

terrestrial strata of the Newark Supergroup, Connecticut Valley, 

U.S.A.: Sedimentary Geology, v. 29, p. 283-307. 

SUMMARY: The clay mineralogy stratigraphy of the Hartford Basin is outlined. 

Correlation with depositional environment suggests that floodplain 

red-beds are rich in detrital clays with abundant 2M illite, 

lacustrine gray-beds consist of 1Md illite+ chlorite, and black 

lacustrine shales contain 1Md illite + trioctahedral smectite. 

Comparisons are made to other rift basins. Magnesium was apparently concentrated in lacustrine black muds. 

KEYWORDS: sediments 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Section: clay mineralogy stratigraphy 

DATA: Chern. (type of data): major oxides (whole rock) 

30 P APRIL, RICHARD H., 1981, Trioctahedral smectite and interstratified 

chlorite/smectite in Jurassic strata of the Connecticut Valley: Clays 

and Clay Minerals, v. 29, no. 1, p. 31-39. , 

SUMMARY: This mineralogy occurs in the East Berlin Fm. black shale, lacustrine deposits. Magnesium-rich pore waters favored transformation 

of smectite to chlorite/smectite; and these deposits are underlain 

by Mg-rich black shale, a probable source of Mg from trioctahedral, authigenic smectite. 

KEYWORDS: mineralogy 

sediments 

sedimentation 

petrology 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

DATA: Chern. (type of data): major oxide 

Plots: x-ray diffraction 

31 T : ARBOGAST, JEFFREY, 1976, Fluvial deposition of Triassic red beds, 

Durham Basin, North Carolina: M.S. Thesis, Duke University. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Durham Basin, North Carolina 
Page 11 

32 P ARDEN, D.O., 1974, A geophysical profile in the Suwannee Basin, northwestern Florida: in, Symposium on the Petroleum Geology of the 

Georgia Coastal Plain, Georgia Geological Survey Bulletin 87, 111-122. 

SUMMARY: Seismic profiling is used to delineate the Suwannee Basin in NW 

Florida. Faulted Triassic rocks are inferred to occur and reach a 

maximum thickness of 6000 feet. Gravity and magnetic data indicate 

that basalt or diabase may be present in the lower 2000 feet of the 

section. 

KEYWORDS: buried basins 

geophysics 

seismic profiles 

GEOGRAPHIC AREA: Florida 

MAPS: Section: 

Geophys: 

cross sections 

seismic profiles 

33 P ARMSTRONG, RICHARD LEE, AND BESANCON, JAMES, 1970, A Triassic time 

scale dilemma: K-Ar dating of Upper Triassic mafic rocks, Eastern 

U.S.A. and Canada, and post-Upper Triassic plutons, Western Idaho, 

U.S.A.: Eclogae Geologicae Helvetiae, v. 63, p. 15-28. 

SUMMARY: K-Ar dating of diabase and basalt from throughout the Newark system 

does not correlate with accepted estimates of the Triassic-Jurassic 

boundary. Most basalts and diabases cluster at 200 m.y., with 

several dikes clustering at 225 m.y. 

KEYWORDS: geophysics 

radiometric ge 

K/ Ar dating 

diabase 

basalt 

GEOGRAPHIC AREA: al 

MAPS: Mise: ations in Connecticut 
Page 12 

34 P : AULT, w.u., AND KULP, J.L., 1959, Isotopic geochemistry of sulfur: 

SUMMARY: 

KEYWORDS: 

Geochimica et Cosmochimica Acta, v.16, p. 201-235. 

Several sulfur isotope values from the Cornwall deposit are given. Pyrite and chalcopyrite are characterized by delta-s34 values of 

about +9.5. 

geochemistry 

isotopes 

economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lebanon County, Lebanon 

Quad. 

DATA: Chern. (type of data): sulfur isotopes on pyrite, chalcopyrite 

35 P AYUSO, ROBERT A., BENCE, A.E., AND TAYLOR, S.R., 1976, Upper Jurassic 

tholeiitic basalts from DSDP Leg 11: Journal of Geophysical Research, 

v. 81, no. 23, p. 4305-4325. 

SUMMARY: Major oxide and trace element geochemistry (including rare earth 

elements) are used to develop models of mid-ocean ridge basalt 

petrogenesis based on samples collected from the Leg N sites 

(representing mid- to late-Jurassic ridge volcanism) and modern ridge 

samples. Mantle heterogeneity is suggested. Mid-ocean ridge basalts 

show no indication of petrologic evolution since the late Mesozoic. 

KEYWORDS: basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Regional 

DATA: Chern. (type of data): pyroxene, olivine, feldspar, trace elements 

Photos: photomicrographs 
Page 13 

B 

36 P : BAER, FRANCIS M., AND MARTIN, WILLIAM H., 1949, Some new finds of 

fossil ganoids in the Virginia Triassic: Science, v. 110, p. 684-686. 

SUMMARY: Several fish fossil localities are described. The fossils occur in 

dark, carbonaceous shale along a belt 18 miles long and 2 miles wide 

that occurs at the western Triassic border. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Prince William County 

MAPS: Mise: sample location map 

DATA: Photos: fossil fish 

37 A BAIER, E., RIGOTTI, P.A., AND SCHMIDT, V.A., 1978, Paleointensities 

from Upper Triassic and Lower Jurassic intrusives from the Northern 

Appalachians: American Geophysical Union, Transactions, v. 59, p. 

271. 

SUMMARY: Diabase from;Pennsylvania and New Jersey was studied using the ARM 

and Thellier~Thellier methods. Little variation within units is 

observed, but variation between units, apparently decreasing 

northeast of Gettysburg, is found. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania, New Jersey 
Page 14 

38 P BAIN, G.L., 1973, Feasibility study of east coast Triassic basins for 

waste storage, data availability: U.S. Geological Survey Open-File 

Report 73-15, 113 p. 

SUMMARY: This report presents an overview of the geology, structure, 

depositional environment, and tectonic development of the eastern 

U.S. Triassic-Jurassic basins. A summary of the historical 

development of ideas on the geology of the Mesozoic basins is given. 

The second half of the report focuses on the hydrologic character 

and ground-water quality of the eastern U.S. Triassic-Jurassic basins. 

KEYWORDS: general geology 

structure 

tectonics 

hydrology 

GEOGRAPHIC AREA: Regional 

MAPS: Mise: water-well location [1:500,000] 

DATA: Chern. (type of data): well water chemistry (major cations, anions, pH) 

Plots: ground-water chemistry, well yield rate vs. depth 

39 P BAIN, GEORGE L., 1966, Geology and ground-water in the Durham area, 

North Carolina: North Carolina Department of Water Resources, GroundWater Bulletin Number 7, 147 p. 

SUMMARY: General geology of the Durham area, including Triassic rocks, is 

described, and water quality from a number of Triassic wells is 

presented. Well data are presented by county. In the Triassic 

area, sodium and calcium bicarbonate water types are present with 

iron (0.15 ppm avg.), chloride (75 ppm avg.), and hardness (158 ppm 

avg.). 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

MAPS: Geol: (bar scale only) sketch 

Mise: yields per foot of depth; well locations 

DATA: Plots: water-Triassic (average yield; avg. yield vs. weathering 

depth) 
Page 15 

40 A BAIN, GEORGE L.~ 1977, Wrench-fault tectonic or1g1n of East Coast 

Triassic basims: Geological Society of America, Abstracts with 

Programs, v. 9, p. 115. 

SUMMARY: Remote sensing images reveal a left-lateral wrench-fault system 

present in North Carolina. The Durham and Danville Basins are 

apparently 11 Structural elements .. of this system. Such an origin may 

apply to the other basins as well. 

KEYWORDS: structure 

tectonics 

GEOGRAPHIC AREA: Durham Basin, Danville Basin, North Carolina 

41 A BAIN, GEORGE L.~ AND BISDORF, ROBERT J., 1977, Structural reinterpretation of the Durham-Wadesboro Triassic Basin, North Carolina: 

Geological Society of America, Abstracts with Programs, v. 9, p. 116. 

SUMMARY: Resistivity and seismic profiles indicate the basin is not a simple 

monocline dipping east toward the border fault. The basin consists 

of a series of basement step-downs from the east and represented by 

gravity faults. The basins are also apparently synclinal, being 

deepest not at the border, but several miles inside the basin. 

KEYWORDS: structure 

faults 

geophysics 

seismic pro;files 

resistivity 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 
Page 16 

42 PM: BAIN, GEORGE L., AND BROWN, CHARLES E., 1981, Evaluation of the Durham 

Triassic Basin of North Carolina and techniques used to characterize 

its waste-storage potential: U.S. Geological Survey Open-File Report 

80-1295, 132 p. 

SUMMARY: The structural nature of the basin is discussed from geophysical 

data. Sedimentary formations within the basin are considered 

contemporaneous facies·equivalents. Coal, oil shale, and uranium 

occurrences are briefly outlined. Geophysical data from two wells 

are presented. 

KEYWORDS: geophysics 

seismic profiles 

SLAR 

gravity 

magnetism 

resistivity 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

MAPS: Section: resistivity 

structure 

economic geology 

coal 

oil shale 

uranium 

hydrology 

Geophys: gravity, aeromagnetics, SLAR, borehole 

Mise: lineaments 

DATA: Chern. (type of data): water 

43 FM: BAIN, GEORGE L., AND HARVEY, BRUCE W., 1977, Field guide to the 

geology of the Durham Triassic Basin: Carolina Geological Society, 

40th Annual Meeting Guidebook, 83 p. 

SUMMARY: A review of the sedimentation, stratigraphy, and structure is given. 

Geophysical surveys are presented. The two-day field trip includes 

18 stops. Fossil species are emphasized. 

KEYWORDS: general geology 

structure' 

paleontology 

economic geology 

coal 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

MAPS: Section: 

Geophys: 

local strat. columns, drill core logs 

aeromagnetic [1:250,000], resistivity, magnetics, gravity, 

seismic 
Page 17 

44 A BAIN, GEORGE L.~ AND STEWART, D.M., 1975, Three seismic-refraction 

traverses in Durham Triassic Basin near Cary, Green Level, and Bansal, 

North Carolina: Geological Society of America, Abstracts with 

Programs, v. 7, p. 467-468. 

SUMMARY: Seismic traverses indicate that the eastern Jonesboro fault is 

nearly vertical, that beds dip more steeply SE toward the west, horsts~and grabens with thousands of feet of relief are present 

within the basin, and velocities are anomalously high. The latter 

is attributed to past or present regional stress fields. 

KEYWORDS: geophysics 

seismjc profiles 

structure 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

45 F BAIN, G.W. (ed.), 1957, Guidebook to the geology of the northern part 

of the Connecticut Valley: New England Intercollegiate Geological 

Conference Gu1i debook, 49th Ann. Mtg. , Amherst, Massachusetts, 56 p. 

KEYWORDS: stratigraphy 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

46 P BAIN, G.W., AND MEYERHOFF, H.A., 1942, The flow of time in the 

Connecticut Valley - geological imprints: The Hampshire Bookshop (North~mpton, Massachusetts), 129 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

47 P : BAIN, GEORGE W., 1932, The northern area of Connecticut Valley 

Triassi,c: American Journal of Science, v. 23, p. 57-77. 

SUMMARY: The stratigraphy, Triassic and pre-Triassic structure and nature of 

basin sedimentation are discussed. Mt. Toby is emphasized; lake 

beds, mud flows, and the nature of the Triassic-crystalline 

metamQrphics contact are discussed. 

KEYWORDS: general geology 

structure 

sedimentation 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Mise: block diagrams of topography and structure 

DATA: Photos: mudflow, Triassic - pre-Triassic contact 
48 P : BAIN, GEORGE W., 1941, The Holyoke Range and Connecticut Valley 

structure: American Journal of Science, v. 239, p. 261-275. 

Page 18 

SUMMARY: The structure of the Holyoke basalts and related clastics is 

considered. One conclusion reached is that the Holyoke flow has 

moved 5000 feet to the south with respect to the eastern highland 

which resulted in development of numerous fault blocks within the 

flow. 

KEYWORDS: structure 

basalt 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geol: Holyoke Range 

DATA: Photos: view of the Holyoke Range from northeast 

49 P BAIN, GEORGE W., 1957, Triassic age rift structure in Eastern North 

America: New York Academy of Sciences, Transactions, v. 19, ser. II, 

p. 489-502. 

SUMMARY: The basins are considered to have had a .. considerable part of their 

depth .. established prior to sediment influx. The basins have not 

extended far beyond their present limits. Evidence is supplied from 

the Hartford Basin and comparison to Morocco. 

KEYWORDS: general geology 

structure 

faults 

GEOGRAPHIC AREA: Regional 

50 A : BAIN, GEORGE WILLIAM, 1941, African rift valleys and American Triassic 

troughs: Geological Society of America, Bulletin, v. 52, p. 1889. 

SUMMARY: A description of the structural features of the Moroccan Triassic is 

given. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Regional, Morocco 
Page 19 

51 A BAIRD, DONALD, AND PATTERSON, O.F., III, 1968, Archosaur fauna in the 

Pekin Formation (Upper Triassic) of North Carolina: Elisha Mitchell 

Scientific Society, Journal, v. 84, no. 4, p. 439. 

SUMMARY: Species from the clay pit 1/2 mile NW of Gulf are listed and 

include: Rutiodon carolinensis, which also occurs in the Cumnock 

coal (Deep River) and the New Oxford Fm. and the Stockton Fm. 

(Newark- Gettysburg); Rutiodon manhattanensis; Typethorax; 

Teratosaurus and Sinosaurus; and Placerias gigas, not previously 

reported from the Newark Group. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina, Chatham County, Goldston 

Quad. 

52 A : BAIRD, DONALD, AND TAKE, WILLIAM F., 1959, Triassic reptiles from Nova 

Scotia: Geological Society of America, Bulletin, v. 70, p. 1565-1566. 

SUMMARY: Reptile fossil parts, chiefly from arkosic units in the basal 

Wolfville sandstone, are described. A table is presented 

correlating Triassic formations of Nova Scotia with the Connecticut 

Valley and New Jersey. 

KEYWORDS: paleontology 

general geology 

GEOGRAPHIC AREA: Fundy Basin, Canada, Nova Scotia 

53 M BALK, ROBERT, 1956, Bedrock geology of the Massachusetts portion of 

the Bernardston Quadrangle, Massachusetts-Vermont: U.S. Geological 

Survey, Geologic Quadrangle Map GQ-90. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts, Franklin Co. 

MAPS : Ge o 1 : [ 1 : 31 , 68 0] 

54 M BALK, ROBERT, 1956, Bedrock geology of the Massachusetts portion of 

the Northfield Quadrangle, Massachusetts, New Hampshire, and Vermont: 

U.S. Geological Survey, Geologic Quadrangle Map GQ-92. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts, Franklin Co. 

MAPS: Geol: [1:31,680] 
Page 20 

55 M : BALK, ROBERT, 1956, Bedrock geology of the Millers Falls Quadrangle, 

Massachusetts: U.S. Geological Survey, Geologic Quadrangle Map GQ-93. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts, Franklin Co. 

MAPS: Geol: [1:31,680] 

56 PM: BALK, ROBERT, 1957, Geology of Mount Holyoke Quadrangle, Massachusetts: Geological Society of America, Bulletin, v. 68, p. 481-504. 

SUMMARY: The general geology is outlined and consists of (from base) the 

Sugarloaf arkose, the Holyoke diabase, and the Longmeadow sandstone 

(a fining upward sequence) with an interbedded tuffaceous unit (the 

Granby Tuff). The petrography of the diabase and sediments is discussed. Glacial and recent deposits cover most of the quadrangle 

area. 

KEYWORDS: general geology 

structure 

petrology 

diabase 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampshire County, Mt. Holyoke 

Quad. 

MAPS: Geol: [1:31,680] (also surficial) 

DATA: Chern. (type of data): major oxide (diabase) 

57 T BALLARD, J.A., 1959, The geology of the Merry Oaks section of the 

Durham Tr,iassic Basin of North Carolina: M.S. Thesis, University of 

North Carolina, 44 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 
Page 21 

58 P BALLARD, R.D., AND UCHUPI, E., 1972, Carboniferous and Triassic 

rifting: a preliminary outline of the tectonic history of the Gulf of 

Maine: Geological Society of America, Bulletin, v. 83, p. 2285-2302. 

SUMMARY: Geophysical studies indicate that rifting began in the Late Devonian 

and was reinitiated in the Late Triassic, accompanied by crustal 

block translation. Rifting ended as a result of igneous intrusion 

represented by the east coast magnetic anomaly. 

KEYWORDS: tectonics 

geophysics 

structure 

GEOGRAPHIC AREA: Maritime 

MAPS: Geol: tectonic 

Geophys: seismic reflection, magnetic anomaly 

Mise: bathymetric 

59 P BALLARD, R.D., AND UCHUPI, E., 1975, Triassic rift structure in Gulf 

of Maine: American Association of Petroleum Geologists, Bulletin, v. 

59, no. 7, p. 1041-1072. 

SUMMARY: Three fault systems of Triassic Age are found in the Bay of Fundy to 

the Gulf of Maine. Tectonic history is discussed using seismic and 

submersible studies. Triassic rifting occurred along a pre-existing 

Pennsylvanian Fault zone. 

KEYWORDS: tectonics 

structure 

seismic profiles 

GEOGRAPHIC AREA: Maritime Province, Maine, Canada 

MAPS: Geol: tectonics of Gulf area 

Section: cross section (EW) 

Geophys: seismic reflection profiles, magnetics 

Mise: sediment isopachs, depth to basement, sample locations 

DATA: Photos: Alvin-bottom photos 

60 T BANKS, WAYNE, 1982, Detailed gravity profile and structural interpretation of the Mesozoic basin of Northern Connecticut: M.S. Thesis, 

University of Connecticut. 

KEYWORDS: geophysics 

gravity 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecituct 
Page 22 

61 P BARKER, D.S., AND LONG, L.E., 1969, Feldspathoidal syenite in a quartz 

diabase sill, Brookville, New Jersey: Journal of Petrology, v. 10, p. 

202-221. 

SUMMARY: Sr isotopic data, field, and experimental melting data indicate that 

a granophyric differentiate of a diabase intrusion reacted with 

overlying Na-rich argillite to form a nepheline and analcime 

syenite. 

KEYWORDS: mineralogy 

petrology 

diabase 

granophyre 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hunterdon County, Stockton Quad. 

MAPS: Mise: syenite locality 

DATA: Chern. (type of data): major oxide and norms, isotopes 

Plots: mineralogy, argillite melting curve 

62 P : BARRELL, JOSEPH, 1915, Central Connecticut in the geologic past: 

Connecticut Geological and Natural History Survey, Bulletin 23, 44 p. 

SUMMARY: A general discussion is given of the topographic-physiographic 

development of the Triassic basin in Connecticut. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

63 P BARTELS, O.G., 1951, Rediscovery of so-called coal in fissure veins 

near West Springfield, Massachusetts: Rocks and Minerals, v. 26, p. 

600. 

KEYWORDS: economic geology 

coal 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
Page 23 

64 M : BASCOM, F., CLARK, W.B., DARTON, N.H., AND OTHERS, 1909, Philadelphia 

folio: U.S. Geological Survey, Geologic Atlas No. 162. 

SUMMARY: Covers area between 39°45' - 40°15' and 75°- 75°30'. 

KEYWORDS: general geology economic geology 

coal 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery Co., Bucks Co. 

MAPS: Geol: [1:62,500] 

Section: core data through Stockton Fm. in Norristown; stratigraphic 

column 

65 PM: BASCOM, F., DARTON, N.H., KUMMEL, H.B., AND OTHERS, 1909, Trenton 

folio: u.s. Geological Survey, Geologic Atlas No. 167, 24 p. 

SUMMARY: (Covers area between 40°-40°30' and 75°-74°30'.) Text discusses the 

structure, general geology, and petrography of the Lockatong, 

Brunswick, and Stockton Formations, and the diabase, basalt, and 

syenite. Barite and copper prospects are noted on the geologic map. 

KEYWORDS: economic geology barite 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Mercer County, Somerset Coun y, 

Hunterdon County, Middlesex County 

MAPS: Geol: [1:125,000] 

Section: strat. column 

DATA: Chern. (type of data): (major oxide) diabase, basalt, nepheline s enite 
Page 24 

66 PM: BASCOM, F., AND STOSE, G.W., 1938, Geology and mineral resources of 

the Honeybrook and Phoenixville Quadrangles, Pennsylvania: U.S. 

Geological Survey Bulletin 891, 145 p. 

SUMMARY: This general geologic study covers the southern edge of the Newark 

Basin in Pennsylvania which includes the Morgantown, Elverson, 

Pottstown, and Phoenixville 7.5-minute quadrangles. Stockton, 

Lockatong, and Brunswick Formations are described. 

KEYWORDS: general geology 

structure 

economic geology 

zinc 

lead 

iron 

copper 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Chester County, Berks County 

MAPS: Geol: [1:62,500] 

Section: geologic cross sections (5) 

DATA: Photos: Triassic fault at Linfield 

67 P BASCOM, F., WHERRY, E.T., STOSE, G.W., AND JONAS, A.I., 1931, Geology 

and mineral resources of the Quakertown-Doylestown District, Pennsylvania and New Jersey: U.S. Geological Survey Bulletin 828, 62 p. 

SUMMARY: The general geology of the Milford Square, Quakertown, Bedminster, 

Lumberville, Perkiomenville, Telford, Doylestown, and Buckingham 

quadranges is discussed. Sections and general features of the 

Stockton, Lockatong, and Brunswick Formations are presented. 

KEYWORDS: general geology struc~ure 

economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey, Bucks Co., Berks Co. 

MAPS: Geol: [1:62,500] 

DATA: Photos: Lockatong Fm. 

68 T BASU, D., 1974, Genesis of the Grace Mine magnetite deposit, Morgantown, Berks County, southeastern Pennsylvania: Ph.D. Thesis, Lehigh 

University, 317 p. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks Co., Morgantown Quad. 
Page 25 

69 P BATEMAN, ALAN M., 1923, Primary chalcocite: Bristol Copper Mine, 

Connecticut: Economic Geology, v. 18, no. 2, p. 122-166. 

SUMMARY: The Bristol Copper Mine is described. Ore is chiefly bornite and 

chalcocite with traces of galena, sphalerite, barite, and pyrite. 

The paragenesis is characterized by increasing oxidation with time 

producing lower sulfur sulfides but not native copper. Mineral 

solutions are thought to have emanated from diabase fluids. The 

deposit occurs in the Triassic and adjacent to the western border 

fault. 

KEYWORDS: economic geology 

copper 

barite 

silver 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co., Bristol Quad. 

DATA: Photos: camera lucida drawings of ore sections 

70 PM: BAYLEY, W.S., SALISBURY, R.D., AND KUMMEL, H.B., 1914, Raritan folio: 

U.S. Geological Survey, Geologic Atlas No. 191, 32 p. 

SUMMARY: (Covers area between 40°30'-41° and 75°-74°30' .) Text discusses the 

general geologic relations and composition of the Stockton, Lockatong, and Brunswick Fms., the Watchung basalt flows, and the diabase 

dikes and sheets. Structure and sedimentation are also outlined. 

KEYWORDS: general geology 

economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Somerset County, Hunterdon County 

MAPS: Geol: [1:125,000] 

DATA: Chern. (type of data): major oxide (diabase and basalt) 

71 P : BECK, L.C., 1839, Notices of native copper: American Journal of 

Science, First Series, v. 36, p. 107-114. 

SUMMARY: Occurrences of native copper in the Triassic rocks of New Jersey are 

described. 

KEYWORDS: mineralogy 

economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 26 

72 P BECK, MYRL E., JR., 1965, Paleomagnetic and geological implications of 

magnetic properties of the Triassic diabase of southeastern Pennsylvania: Journal of Geophysical Research, v. 70, no. 12, p. 2845-

2856. 

SUMMARY: A Triassic pole position is calculated. Rotation of diabase units 

about regional strike caused linear distributions of site-mean 

directions. The strongest and least stable moments are associated 

with granophyric diabase. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

MAPS: Mise: sample lac. 

DATA: Plots: pole positions, site-mean directions 

73 P BECK, MYRL E., JR., 1966, The effect of magmatic differentiation on 

the magnetic properties of diabase sheets of southeastern Pennsylvania: U.S. Geological Survey Professional Paper 550D, p. D109-

D116. 

SUMMARY: Remanent and induced magnetic intensity increases with crystal 

fractionation of diabase sheets, reflecting an enrichment of ferric 

iron 1n passing from mafic to felsic differentiates. Concentration 

of such residual liquids near the tops of gently dipping sheets may 

result in aeromagnetic profile asymmetry. 

KEYWORDS: geophysics 

magnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Mise: sample lac. 

DATA: Plots: natural vs. induced magnetic intensities 
Page 27 

74 P BECK, MYRL E., JR., 1972, Paleomagnetism of Upper Triassic diabase 

from southeastern Pennsylvania: further results: Journal of 

Geophysical Research, v. 77, no. 29, p. 5673-5687. 

SUMMARY: Upper Triassic diabase dikes (105 samples) yield a paleomagnetic 

pole at 62°N, 104.5°E. Dipole wobble characterizes Late Triassic 

secular variation with no reversals of the field evident. Active 

drifting during the Late Triassic and Jurassic is evident, but polar 

wandering is minimal. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

MAPS: Mise: sample loc. 

DATA: Plots: paleomagnetic pole plots 

75 P : BECKER, GEORGE F., 1895, Gold fields of the southern Appalachians: 

U.S. Geological Survey, 16th Annual Report, Part 3, p. 251-331. 

SUMMARY: A paragraph is devoted to a description of the Womble (mine) 3 miles 

NW of Moncure, North Carolina. Triassic conglomerate consisting of 

quartz and decomposed granite, schist, and "porphyrite" clasts 

contains gold. The author obtained free gold by panning the 

material. The pit is described as being 100 cubic yards. 

KEYWORDS: economic geology 

gold 

GEOGRAPHIC AREA: Deep River Basin, North Carolina, Chatham County 

76 P : BEHRENDT, JOHN C., AND OTHERS, 1983, Marine multichannel seismicreflection evidence for Cenozoic faulting and deep crustal structure 

near Charleston, South Carolina: in, Gohn, G.S., ed., Studies 

Related to the Charleston, South Carolina, Earthquake of 1886 - Tectonics and Seismicity, u.s. Geological Survey Professional Paper 

1313, p. Jl-J29. 

SUMMARY: Seismic data are used to define the Triassic Helena Banks Fault 

offshore of Charleston, a Jurassic basalt layer, and other Triassic 

faults. The lower termination of these faults is along a decollement zone at a depth of about 10 km. It is proposed that seismic 

activity in the Charleston area is related to this zone. 

KEYWORDS: buried basins 

geophysics 

seismic profiles 

GEOGRAPHIC AREA: South Carolina 

MAPS: Geophys: seismic profiles 
Page 28 

77 PM: BELL, HENRY, III, BOOKS, K.G., DANIELS, D.L., HUFF, W.E., JR., AND 

POPENOE, P., 1979, Diabase dikes in the Haile-Brewer area, South 

Carolina, and their magnetic properties: U.S. Geological Survey 

Professional Paper 1123C, 18 p. 

SUMMARY: Aeromagnetics reveals numerous diabase dikes in the Haile-Brewer 

area that have paleomagnetic pole positions clustered in two groups 

of opposing polarity. A Late Triassic, Early Jurassic age is 

considered for the dikes. 

KEYWORDS: geophysics 

paleomagnetism 

aeromagnetism 

magnetism 

GEOGRAPHIC AREA: South Carolina 

MAPS: Geol: [1:540,541] 

Geophys: aeromagnetics magnetic profiles [1:222,222] 

DATA: Chern. (type of data): diabase (major and trace) 

78 F BELL, HENRY, III, BUTLER, J.R., HOWELL, D.E., AND WHEELER, W.H., 1974, 

Geology of the Piedmont and Coastal Plain near Pageland, South 

Carolina and Wadesboro, North Carolina: Carolina Geological Society, 

Guidebook, 23 p. 

SUMMARY: The general geology of the Wadesboro Basin is discussed. Comparisons are made to the Sanford and Durham Basins. Unlike the latter, 

the Wadesboro Basin contains no coal or black shale and its western 

border fault is intensely splintered. The Crowburg Basin is a small 

outlier of the larger Wadesboro and is the southernmost exposed 

Triassic Basin. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Wadesboro Basin, North Carolina, South Carolina 

MAPS: Mise: field trip stops 

79 T BELLO, DON, 1982, Pillow lavas and other volcanic structures of 

Jurassic age: upper flow unit of the Orange Mountain basalt, Newark 

Basin: M.S. Thesis, Rutgers University. 

KEYWORDS: structure 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 29 

80 A BELLO, DONALD M., 1983, Pillow lavas of th~ Triassic-Jurassic Newark 

and Hartford Basins: Geological Society of America, Abstracts with 

Programs, v. 15, p. 91. 

SUMMARY: A 35-meter by 4-km long pillow complex at the base of the upper flow 

unit of the Orange Mtn. basalt consists of flow lobe pillows overlain by bedded pillows in a tight structural framework with open 

interstices. Flow lobe pillows occur at the base of the lower 

Talcott basalt flow unit. Sulfur data (250 ppm Orange, 150 ppm 

Talcott) with vesicularity suggest the pillows formed at depths of 

300 meters (Orange) and 700 m (Talcott). 

KEYWORDS: sedimentation 

general geology 

structure 

basalt 

GEOGRAPHIC AREA: Newark Basin, Hartford Basin, New Jersey, Connecticut 

81 A : BENIMOFF, A.I., AND SCLAR, C.B., 1980, Partial fusion of a xenolith of 

Lockatong argillite in the Palisades diabase, Graniteville Quarry, 

Staten Island: Geological Society of America, Abstracts with Programs, v. 12, p. 24. 

SUMMARY: The Lockatong xe~olith has a coarse-grained pyroxene trondhjemite at 

its interface with the diabase. Composition of the trondhjemite is: 

32 wt. % normative albite, 18 wt. % normative quartz, and 7 wt. % 

total iron. Calcium, magnesium, iron, and titanium diffused from 

the diabase magma into the trondhjemite magma, while sodium diffused 

into the diabase. 

KEYWORDS: diabase 

metamorphism 

granophyre 

hornfels 

diabase 

GEOGRAPHIC AREA: Newark Basin, New York 

82 A : BENIMOFF, ALAN I., AND SCLAR, CHARLES B., 1978, Pyroxene trondhjemite 

derived by partial fusion of a xenolith of Lockatong argillite in the 

Palisades Sill, Staten Island, New York: Geological Society of 

America, Abstracts with Programs, v. 10, p. 33. 

SUMMARY: The chemical and mineralogic features of an argillic xenolith in 

diabase are described. The pyroxene trondhjemite occurs as a 10-cm 

thick band between the xenolith and t~e diabase. 

KEYWORDS: metamorphism 

diabase 

petrology 

GEOGRAPHIC AREA: Newark Basin, New York 
Page 30 

83 M BENNISON, A.P., AND MILTON, C., 1954, Preliminary geologic map of the 

Fairfax and Seneca Quadrangles, Virginia-Maryland: U.S. Geological 

Survey Open-File Map (unnumbered). 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: [1:62,500] 

84 M BERG, T.M., AND GEYER, A.R., 1976, Elizabethtown Quadrangle, Pennsyl- vania: in, Berg, T.M., and Dodge, C.M., eds., 1981, Atlas of 

Preliminary Geologic Quadrangle Maps of Pennsylvania, Pennsylvania 

Geological Survey, Map 61, p. 192. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lancaster Co., Dauphin Co., 

Lebanon Co., Elizabethtown Quad. 

MAPS: Geol: [1:24,000] 

85 M BERG, T.M., AND GEYER, A.R., 1976, Terre Hill Quadrangle, Pennsylvania: in, Berg, T.M., and Dodge, C.M., eds., 1981, Atlas of Pre- liminary~eologic Quadrangle Maps of Pennsylvania, Pennsylvania Geological Survey, Map 61, p. 554. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lancaster Co., Berks Co., Terre· 

Hi 11 Quad. 

MAPS: Geol: [1:24,000] 

86 F : BERNSTEIN, L.R., 1980, Minerals of the Washington, D.C. area: 

Maryland Geological Survey, Education Series No. 5, 148 p. 

SUMMARY: Diabase , zeolite, and copper occurrences in the Culpeper Basin of 

northern Virginia are described. 

KEYWORDS: mineralogy 

zeolites 

diabase 

economic geology 

copper 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: mineral localities 
Page 31 

87 A BERRY, E. WILLARD, 1938, Triassic coals: Elisha Mitchell Scientific 

Society, Journal, v. 54, p. 188. 

SUMMARY: Coal is found in Moore, Chatham, and Lee Counties, and is 

characterized by few spores, much "woody tissue," and the presence 

of glass fragments attributed to contemporaneous volcanic activity. 

KEYWORDS: economic geology 

coal 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

88 P BERRY, E. WILLARD, 1954, Triassic sedimentation in North Carolina and 

the Eastern United States: 19th International Geological Congress, 

Algiers, Section 13, Fascicule 13, p. 93-97. 

SUMMARY: A brief review of the sedimentation processes is given and is 

related to rates of basin subsidence. Arkoses and conglomerates result from faster subsidence. Coal and carbonaceous shale develop 

during slower subsidence. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Regional, Durham Basin, North Carolina 

89 A BERRY, EDWARD W., 1912, The age of the plant-bearing shales of the 

Richmond coal field: American Journal of Science, Fourth Series, v. 

34, p. 224-225. 

SUMMARY: The brief communication cites the work of Zeiller and Nathorst, who, 

in comparing the Richmond coal flora with those of the Keuper aged 

Lunz and Thale flora of Austria and Saxony, respectively, conclude 

that the Richmond beds are also Keuper in age. This evidence, also 

supported by the work of Eastman (1911) in studies of Connecticut 

fish, contradicts the author's study of a calamite type flora from 

the Richmond coal, assumed to be Rhaetic. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Richmond Basin, Virginia 
Page 32 

90 P BERTRAND, H., AND COFFRANT, D., 1977, Geochemistry of tholeiites from 

North-East American margin; correlation with Morocco: Contributions 

to Mineralogy and Petrology, v. 63, p. 65-74. 

SUMMARY: Multivariate statistics are used to review the chemistry and 

geographic positions of diabase intrusives. Moroccan tholeiites 

appear to best correlate with Connecticut - New Jersey tholeiites. 

Magmatic evolution is shown to have proceeded from South to North. 

KEYWORDS: geochemistry 

diabase 

tectonics 

GEOGRAPHIC AREA: Regional 

DATA: Chern. (type of data): average analyses from U.S. and Morocco 

Plots: statistical (principal component and stepwise discriminant) 

91 T BERTRAND, H., AND PRIOTON, J.M., 1975, Les dolerites Moroccaines et 

1 •ouverture de 1 •Atlantique etude petrologique et geochemique: 

Ph.D. Thesis, University of Lyon, France, 314 p. 

KEYWORDS: geochemistry 

petrology 

diabase 

tectonics 

GEOGRAPHIC AREA: Morocco 

92 M : BINGHAM, J.W., 1976, Contour map of the bedrock surface, Middletown 

Quadrangle, Connecticut: u.s. Geological Survey, Map MF-639b. ~ 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 

93 M BINGHAM, J.W., AND PAINE, F.D., 1976, Contour map of the bedrock 

surface, Durham Quadrangle, Connecticut: U.S. Geological Survey, Map 

MF-776a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 
Page 33 

94 P BISDORF, ROBERT J., AND ACKERMAN, HANS D., 1976, Schlumberger soundings in the Durham-Wadesboro Triassic Basin, North Carolina: U.S. 

Geological Survey Open-File Report 76-251, 72 p. 

SUMMARY: As part of a hydrological study of the Durham-Wadesboro Triassic 

basin, 62 Schlumberger resistivity soundings were made. This report only presents the resistivity data, and no interpretations are 

given. (See Ackermann and others, 1976, for a geologic interpretation of the data.) 

KEYWORDS: geophysics 

resistivity 

hydrology 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

DATA: Plots: 62 plots of Schlumberger resistivity versus depth 

95 T : BISSELL, M.H., 1921, The Triassic area of the New Cumberland Quadrangle (York County), Pennsylvania: Ph.D. Thesis, Yale Unversity. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York County, Wellsville 

Quad., Dover Quad., Steelton Quad., Lemoyne Quad. 

96 P : BLACK, GEORGE F., 1922, The Belleville Copper Mine: American 

Mineralogist, v. 7, no. 9, p. 154-158. 

SUMMARY: The Belleville Copper Mine (also known as Schuyler, Arlington, and 

Victoria Mine), located in Union Township, Bergen County, N.J., is 

described. The Belleville Mine was the largest and most important 

copper mine in the Triassic rocks of New Jersey. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Bergen County, Orange Quad. 

97 T : BLACK, WILLIAM W., 1972, Geochemistry of the Triassic Watchung 

basalts, New York: M.S. Thesis, Rutgers University. 

KEYWORDS: geochemistry 

petrology 

basalt 

GEOGRAPHIC AREA: Newark Basin, New York 
Page 34 

98 A BLACK, WILLIAM W., AND PIBURN, MICHAEL D., 1973, Geochemistry of 

Watchung lavas from the Newark Triassic Basin: Geological Soaiety of 

America, Abstracts with Programs, v. 5, no. 5, p. 378. 

SUMMARY: The three quartz-normative flows fractionated along a Fenner trend 

to produce Fe enrichment and Si depletion in younger flows. Diabase 

dikes follow a similar trend. From lower to upper, the three flows 

are: high-Ti02, low-Ti02, and high-Fe203 dolerites (Wiegand and 

Ragland, 1970). 

KEYWORDS: geochemistry 

basalt 

diabase 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

99 M BLANCHETT, JEAN, TYSON, N.S., AND MCGOWAN, E.F., 1963, Aeromagnetic 

map of the Germantown and part of the Poolesville Quadrangles, 

Montgomery and Frederick Counties, Maryland: U.S. Geological Survey, 

Map GP-394. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Culpeper Basin, Maryland, Montgomery County, Frederick 

County 

MAPS: Geophys: aeromagnetism [1:24,000] 

100M BLANCHETT, JEAN, TYSON, N.S., AND MCGOWAN, E.F., 1963, Aeromagnetic 

map of the Seneca and part of the Sterling Quadrangles, Montgomery 

County, Maryland and Loudoun and Fairfax Counties, Virginia: U.S. 

Geological Survey, Map GP-396. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Culpeper Basin, Maryland, Montgomery County 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 35 

101 P BLOOMER, ROBERT 0., 1937, Occurrence of stilbite in the border 

conglomerate near Culpeper, Virginia: American Mineralogist, v. 22, 

p. 309-310. 

SUMMARY: An occurrence of stilbite within conglomerate composed of Catoctin 

schist fragments and calcite is described from near Highway 15. 

Catoctin fragments are largely altered to epidote. 

KEYWORDS: mineralogy 

zeolites 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

102 A BOBYARCHICK, ANDY R., 1982, Influence of the formation of Triassic 

basins on the regional thermal and structural history of crystalline rocks in the Southern Appalachians: Geological Society of America, 

Abstracts with Programs, v. 14, p. 6. 

SUMMARY: Structural and thermal histories of crystalline basement that 

experienced Triassic faulting are distinct from adjacent basement. 

Basin basement temperatures drop upon incipient faulting, slowly 

rise during subsidence, and later, their thermal curves reach those 

of the originally deeper adjacent crystalline rocks due to sediment 

load and igneous activity. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Regional 

103 P BOCK, WILHELM, 1946, New crustaceans from the Lockatong of the Newark 

Series: Academy of Natural Sciences, Philadelphia, Notulae Naturae, 

Number 183, 16 p. 

SUMMARY: A number of species are described from exposures of the Lockatong along the Reading Railroad tunnel near Gwynedd. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

DATA: Photos: fossils 
Page 36 

104 p BOCK, WILHELM, 1952, Triassic reptilian tracks and trends of 

locomotive evolution: Journal of Paleontology, v. 26, p. 395-433. 

SUMMARY: Reptilian foot-prints from the Newark Basin are studied and the 

Lockatong, Stockton, and Brunswick Formations are correlated with 

equivalent European formations. It is estimated that the Stockton, 

Lockatong, and Brunswick Formations represent one million, 2 

million, and 3.5 million years of deposition, respectively. 

KEYWORDS: paleontology 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: many foot-prints 

105 p BOCK, WILHELM, 1952, Vertex monocline studies of the Triassic of 

Southeastern Pennsylvania: Pennsylvania Academy of Science, 

Proceedings, v. 26, p. 93-103. 

SUMMARY: Studies of the Triassic sediments in the Doylestown area indicate 

that subsidence has resulted in prism-shaped, compound monoclines, 

each turning about a common vertex. Such a system explains the 

presence of dips at varying angles to one another. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks County 

MAPS: Section: Delaware River cross sections 

Mise: study area 

106 P BOCK, WILHEL~, 1959, New eastern American Triassic fishes and Triassic 

correlations: National Academy of Science, Geological Center Research 

Series, v. 1, 184 p. 

SUMMARY: Fossil fish species found within the Newark System are described in 

detail with sketches and locations provided. Distinct faunal groups 

characterize the Stockton, Lockatong, and Brunswick Formations and 

verify their formation status as opposed to that of facies interfingering. Faunal assemblages include Lockatong (OsteopleurusGwyneddichtis-Isaura-Candona) and upper Brunswick (ChirotheriumEubrontes-Semionotus). 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

DATA: Photos: fossils 
Page 37 

107 P BOCK, WILHELM, 1959, The Edison fault and the paleontology of some 

Lockatong beds: Pennsylvania Academy of Science, Proceedings, v. 33, 

p. 156-161. 

SUMMARY: A major fault within the Lockatong formation is described from a 

quarry at Edison, near Doylestown, Pennsylvania. Several fossil 

species, including fish, crustacean, and coelacanth are described 

from the gray beds. 

KEYWORDS: structure 

faults 

paleontology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks County, Doylestown 

DATA: Photos: fault exposed in quarry, Turst~odus Acutus (fish) 

108 p BOCK, WILHELM, 1959, The ground-water picture of the Triassic of 

southeastern Pennsylvania: Pennsylvania Academy of Science, 

Proceedings, v. 33, p. 162-184. 

SUMMARY: The hydrogeologic character of the Stockton, Lockatong, and 

Brunswick Formations is discussed. Subjects include water 

velocities, absorptive qualities, topographic influence, and 

economic development factors. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

109 p BOCK, WILHELM, 1969, The American Triassic flora and global distribution: North Wales, Pennsylvania, Geological Center, Geological Center 

Research Series, v. 3 and v. 4, 406 p. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

110 A BOKUNIEWICZ, H.J., 1980, The seaward extension of the Connecticut 

Valley: Geological Society of America, Abstracts with Programs, v. 

12, no. 2, p. 25. 

SUMMARY: Geophysical data are used to delineate the extension of the Hartford 

Basin southward for 15 km. Under Long Island Sound it is approximately 2 to 3 km wide and 200 meters deep. 

KEYWORDS: tectonics 

buried basins 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 38 

111 p BONINI, WILLIAM E., 1964, Is there a Fayetteville "buried Triassic 

basin"?: American Association of Petroleum Geologists, Bulletin, v. 

48, p. 102. 

SUMMARY: The author refers to the seismic work of Bonini and Wollard (1960) 

and emphsizes that the Triassic Basin is assumed from limited data 

and that further well information is required as conclusive evidence. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: North Carolina 

112 PM: BONINI, WILLIAM E., AND WOOLLARD, GEORGE P., 1960, Subsurface geology 

of North Carolina- South Carolina Coastal Plain from seismic data: 

American Association of Petroleum Geologists, Bulletin, v. 44, no. 3, 

p. 298-315. 

SUMMARY: Seismic data indicate that two buried Triassic Basins are present: 

the Florence Basin, 40 x 13 miles, and a new basin extending from 

Raeford into Johnson County, North Carolina. Both areas are beneath 

the Coastal Plain. Well lithologies are also presented. 

KEYWORDS: buried basins 

geophysics 

seismic profiles 

GEOGRAPHIC AREA: North Carolina- South Carolina Coastal Plain 

MAPS: Geol: [1:3,960,000] 

Mise: seismic stations 

DATA: Plots: velocity measurements 
113 P : BOUCOT, ARTHUR J., 1949, Notes on the Ecton Mine, Montgomery Co., 

Pennsylvania: Rocks and Minerals, v. 24, p. 492-495. 

Page 39 

SUMMARY: The deposit occurs in a NE-trending, NW-dipping fault zone within 

the Stockton Formation. The fault zone is twenty-feet wide and 

consists of Triassic gouge as well as adjacent pre-Triassic limestone. Mine workings are outlined. The principal mineralogy is 

argentiferous galena, sphalerite, and chalcopyrite in a gangue of 

vuggy quartz, dolomite, and barite. Fluorite and arsenopyrite have 

been reported. Development of secondary lead, zinc, and copper 

mineralization is described. 

KEYWORDS: economic geology 

1 ead 

zinc 

silver 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania, Montgomery 

Co., Collegeville Quad. 

MAPS: Mise: mine working sketch 

114 P BOURNE, WILLIAM OLAND, 1841, Notice of a locality of zeolites, etc., 

at Bergen, Bergen County, New Jersey: American Journal of Science and 

Arts, v. 40:, p. 69-73. 

SUMMARY: Descriptio~s of zeolite veins in the Bergen Hill diabase, exposed 

during railroad construction, are presented. 

KEYWORDS: mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Bergen County 

115 T BOWKER, D.E., 1960, Remnant magnetization of eastern United States 

Triassic rocks: Ph.D. Thesis, Massachusetts Institute of Technology, 

166 p. 

KEYWORDS: geophysics 

magnetism 

paleomagnetism 

GEOGRAPHIC AREA: R~gional 
Page 40 

116 M BOYNTON, G.R., PITTILLO, D.R., AND ZANDLE, G.L., 1966, Aeromagnetic 

ap of the Bloomsbury and part of the Easton Quadrangles, New Jersey 

and Pennsylvania: U.S. Geological Survey, Map GP-551. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:24,000] 

117 M BOYNTON, G.R., PITTILLO, D.R., AND ZANDLE, G.L., 1966, Aeromagnetic 

map of the Frenchtown and part of the Riegelsville Quadrangles, New 

Jersey and Pennsylvania: u.s. Geological Survey, Map GP-552. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:24,000] 

118 M BOYNTON, G.R., PITTILLO, D.R., AND ZANDLE, G.L., 1966, Aeromagnetic 

·map of parts of the Lambertville, Lumberville, and Stockton Quadrangles, New Jersey and Pennsylvania: u.s. Geological Survey, Map 

GP-553. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:24,000] 

119M BOYNTON, G.R., PITTILLO, D.R., AND ZANDLE, G.L., 1966, Aeromagnetic 

map of the Pittstown and part of the High Bridge Quadrangles, 

Hunterdon County, New Jersey: U.S. Geological Survey, Map GP-554. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:24,000] 
120 M 

Page 41 

BOYNTON, G.R., PITTILLO, D.R., AND ZANDLE, G.L., 1966, Natural gamma 

aeroradioactivity map of the Bloomsbury and part of the'Easton 

Quadrangles, New Jersey and Pennsylvania: U.S. Geological Survey, Map 

GP-570. 

KEYWORDS: geophysics 

aeroradioactivity 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

121 M BOYNTON, G.R.~ PITTILLO, D.R., AND ZANDLE, G.l., 1966, Natijral gamma 

aeroradioactivity map of the Frenchtown and part of the Riegelsville 

Quadrangles, New Jersey and Pennsylvania: U.S. Geological Survey, Map 

GP-571. 

KEYWORDS: geophysics 

aeroradioactivity 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

122 M BOYNTON, G.R., PITTILLO, D.R., AND ZANDLE, G.L., 1966, Natural gamma 

aeroradioactivity map of parts of the Lambertville, Lumberville and 

Stockton Quadrangles, New Jersey and Pennsylvania: u.s. Geological 

Survey, Map GP-572. 

KEYWORDS: geophysics 

aeroradioactivity 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

123 M 

\ 

BOYNTON, G.R.;, PITTILLO, D.R., AND ZANDLE, G.L., 1966, Natural gamma 

aeroradioactivity map of the Pittstown and part of the High Bridge Quadrangles, Hunterdon County, New Jersey: U.S. Geological Survey, 

Map GP-573. 

KEYWORDS: geophysics 

aeroradio~ctivity 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 42 

124 M BOYNTON, G.R., POPENOE, P., AND ZANDLE, G.L., 1965, Aeromagnetic map 

of part of the Southwick Quadrangle, Hampden County, Massachusetts, 

and Hartford County, Connecticut: U.S. Geological Survey, Map GP-534. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA:- Hartford Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

125 M 'BOY-NTON, G.R., POPENOE, P., AND ZANDLE, G.L., 1965, Aeromagnetic map 

of the Woronoco Quadrangle, Hampden and Hampshire Counties, Massachnsetts: u.s. Geological Survey, Map GP-537. 

KEYWORDf: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

126 M BROMERY, R.W., AND OTHERS, 1959, Aeromagnetic map of the Buckingham Quadrangle, Bucks County, Pennsylvania: U.S. Geological Survey, Map 

GP-215. 

KEYWORDS: geophysics_ 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

127 M BROMERY, R.W., AND OTHERS, 1959, Aeromagnetic map of the East Greenville Quadrangle, Berks, Lehigh, and Montgomery Counties, Pennsylvania: U.S. Geological Survey, Map GP-205. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 43 

128M BROMERY, R.W., AND OTHERS, 1959, Aeromagnetic map of the Elverson 

,Quadrangle, Berks and Chester Counties·, Pennsylvania: U.S. Geological 

Survey, Map GP-221. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

129M BROMERY, R.W., AIND OTHERS, 1959, Aeromagnetic map of parts of the 

Lambert vi 11 e1 and Stockton Quadrangles, Bucks County, Pennsyl varii a, and 

Hunterdon and Mercer Counties, New Jersey: U.S. Geological Survey, 

Map GP-216. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newank Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

130M BROMERY, R.W.~ AND OTHERS, 1959, Aeromagnetic map of the Malvern Quadrangle, Chester County, Pennsylvania: U.S. Geological Survey, Map 

GP-202. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

131M BROMERY, R.W., AND OTHERS, 1959, Aeromagnetic map of the Milford 

Square Quadtamgle, Bucks, Lehigh, and Montgomery Counties, Pennsylvania: u.s. Geological Survey, Map GP-206. 

vEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 44 

132 M BROMERY, R.W., AND OTHERS, 1959, Aeromagnetic map of the Morgantown 

Quadrangle, Berks, Lancaster, and Chester Counties, Pennsylvania: 

U.S. Geological Survey, Map GP-220. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

133 M BROMERY, R.W., AND OTHERS, 1959, Aeromagnetic map of part of the 

Norristown Quadrangle, Philadelphia, Chester, Delaware, and Montgomery 

Counties, Pennsylvania: U.S. Geological Survey, Map GP-201. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

134 M BROMERY, R.W., AND OTHERS, 1959, Aeromagnetic map of the Perkiomenville Quadrangle, Montgomery and Bucks Counties, Pennsylvania: U.S. 

Geological Survey, Map GP-208. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

135M BROMERY, R.W., AND OTHERS, 1959, Aeromagnetic map of the Phoenixville 

Quadrangle, Chester and Montgomery Counties, Pennsylvania: U.S. Geological Survey, Map GP-209. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 45 

136 M BROMERY, R. W. , :AND OTHERS, 1959, Aeromagnetic map of the Quakertown 

Quadrangle, Bucks County, Pennsylvania: U.S. Geological Survey, Map 

GP-214. 

KEYWORDS: geophysics 

aeromagnet ir sm 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeroma~netism [1:24,000] 

137M BROMERY, R.W., :AND OTHERS, 1959, Aeroma~~netic map of the Sassamansville Quadrangle, Montgomery and Berks Counties, Pennsylvania: U.S. 

Geological Survey, Map GP-207. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aero~agnetism [1:24,000] 

138 M BROMERY, R.W., AND OTHERS, 1959, Aeromagnetic map of the Valley Forge 

Quadrangle, Chester, Montgomery, and Delaware Counties, Pennsylvania: 

U.S. Geological Survey, Map GP-200. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: NeWark Basin, Pennsylvania 

MAPS: Geophys: aeromargneti sm [1: 24,000] 

139 M BROMERY, R.W. ,! AND OTHERS, 1960, Aeromagnetic map of part of the 

Ambler Quadrangle, Montgomery and Bucks Counties, Pennsylvania: U.S. 

Geological Su~vey, Map GP-265. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 46 

140M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of part of the 

Bedminster Quadrangle, Bucks County, Pennsylvania: u.s. Geological 

Survey, Map GP-260. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

141 M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of the Birdsboro 

Quadrangle, Berks County, Pennsylvania: U.S. Geological Survey, Map 

GP-231. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

142M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of the Boyertown 

Quadrangle, Berks and Montgomery Counties, Pennsylvania: U.S. Geological Survey, Map GP-232. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

143 M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of the Collegeville 

Quadrangle, Montgomery County, Pennsylvania: U.S. Geological Survey, 

Map GP-210. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 47 

144 M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of part of the 

Doylestown Quadrangle, Bucks and Montgomery Counties, Pennsylvania: 

u.s. Geological Survey, Map GP-263. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newa1rk Basin, Pennsylvania 

MAPS: Geophys: aero~agnetism [1:24,000] 

145 M BROMERY, R.W., lAND OTHERS, 1960, Aeromagnetic map of part of the 

Hatboro Quadnangle, Bucks, Montgomery, and Philadelphia Counties, 

Pennsylvania: U.S. Geological Survey,. Map GP-237. 

KEYWORDS: geophysics· 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeroma~netism [1:24,000] 

146M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of the Langhorne 

Quadrangle, Bucks County, Pennsylvania: U.S. Geological Survey, Map 

GP-238. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

147 M BROMERY, R.W. ,, ,AJND OTHERS, 1960, Aeromagnetic map of the Lansdale 

Quadrangle, 'Molntgomery County, Pennsylvania: U.S. Geological Survey, Map GP-264 •. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newa~k Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 48 

148 M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of part of the 

Lumberville Quadrangle, Bucks County, Pennsylvania, and Hunterdon 

County, New Jersey: U.S. Geological Survey, Map GP-261. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

149 M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of the Pottstown 

Quadrangle, Berks, Chester, and Montgomery Counties, Pennsylvania: 

U.S. Geological Survey, Map GP-222. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

150 M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of the Reading 

Quadrangle, Berks County, Pennsylvania: U.S. Geological Survey, Map 

GP-230. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

151M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of part of the 

Riegelsville Quadrangle, Bucks and Northampton Counties, Pennsylvania, 

and Hunterdon and Warren Counties, New Jersey: U.S. Geological 

Survey, Map GP-236. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 49 

152M BROMERY, R.W., AND OTHERS, 1960, Aeromagnetic map of the Telford 

Quadrangle, Montgomery and Bucks Counties, Pennsylvania: U.S. Geological Surv~y~ Map GP-262. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

153M BROMERY, R.W., JlJND OTHERS, 1961, Aeromagnetic map of the Abbottstown 

Quadrangle, Adlams and York Counties, Pennsylvania: U.S. Geological 

Survey, Map GP-281. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

154M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of part of the 

Arendtsville Quadrangle, Adams and Cumbetland Counties, Pennsylvania: 

U.S. Geological Survey, Map GP-278. 

KEYWORDS: geophysics 

aeromagneti$m 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

155M BROMERY, R.W.i, AND OTHERS, 1961, Aeromagnettic map of the Biglerville 

Quadrangle, Adams County, Pennsylvania: U.S. Geological Survey, Map 

GP-279. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 50 

156M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of part of the 

Dillsburg Quadrangle, Adams, York and Cumberland Counties, Pennsylvania: U.S. Geological Survey, Map GP-277. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

157M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Ephrata 

Quadrangle, Lancaster County, Pennsylvania: U.S. Geological Survey, 

Map GP-241. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

158M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of part of the Fairfield Quadrangle and part of the Emmitsburg Quadrangle, Adams County, 

Pennsylvania, and Frederick County, Maryland: U.s.· Geological Survey, 

Map GP-283. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Maryland 

MAPS: Geophys: aeromagnetism [1:24,000] 

159M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Gettysburg 

Quadrangle, and part of the Taneytown Quadrangle, Adams County, Pennsylvania: U.S. Geological Survey, Map GP-284. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 51 

160 M BROMERY, R.W., AND OTHERS, 1961, Aeromagneti¢ map of the Hampton 

Quadrangle, Adams and York Counties, Pennsylvania: U.S. Geological 

Survey, Map GP-280. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

161M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Hanover 

Quadrangle and part of the Manchester Quadrangle, Adams and York 

Counties, Pennsylvania: U.S. Geological Survey, Map GP-286. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

162 M BROMERY, R.W., AND OTHERS, 1961, Aeromagneti1c map of part of the 

Hummelstown Quadrangle, Dauphin County, Pennsylvania: U.S. Geological 

Survey, Map GP-267. 

SUMMARY: (Now the Hershey 7. 5 min. quad.) 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

163 M BROMERY, R.W., AND OTHERS, 1961, A~romagnetic map of the Lebanon 

Quadrangle, Lebanon County, Pennsylvania: U.S. Geological Survey, Map 

GP-254. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 52 

164 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Lititz Quadrangle, Lancaster and Lebanon Counties, Pennsylvania: U.S. Geological 

Survey, Map GP-257. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

165 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Manheim 

Quadrangle, Lancaster and Lebanon Counties, Pennsylvania: U.S. Geological Survey, Map GP-256. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

166M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the McSherrystown 

Quadrangle and part of the Littlestown Quadrangle, Adams County, Pennsylvania: U.S. Geological Survey, Map GP-285. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

167 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of part of the 

Mechanicsburg Quadrangle, Cumberland and York Counties, Pennsylvania: 

U.S. Geological Survey, Map GP-274. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 53 

168 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Middletown 

Quadrangle, D~uphin, Lancaster, Lebanon, and York Counties, Pennsylvania: U.S. Geological Survey, Map GP-269. 

SUMMARY: 15 1 quad covers Middletown, Elizabethtown~ York Haven, and Columbia 

West 7.5 min~te quads. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

169 M BROMERY, R.W., AND OTHERS, 1961, Aeromagneti1c map of part of the Mount 

Holly Springs. Quadrangle, Adams, Cumberland, and York Counties, Pennsylvania: U.S. Geological Survey, Map GP~276. 

KEYWORDS: geophysics 

aeromagnet i,sm 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aero~agnetism [1:24,000] 

170 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the New Cumberland Quadrangle, Cumberland, Dauphin, and York Counties, Pennsylvania: 

u.s. Geologiqal Survey, Map GP-275. 

KEYWORDS: geophysics: 

aeromagnet ;ism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

171 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetrtc map of part of the 

Palmyra Quadrangle, Dauphin and Lebanon Counties, Pennsylvania: U.S. 

Geological Survey, Map GP-268. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 54 

172 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Richland 

Quadrangle, Lancaster and Lebanon Counties, Pennsylvania: U.S. Geological Survey, Map GP-255. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

173 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Sinking 

Spring Quadrangle, Berks and Lancaster Counties, Pennsylvania: U.S. 

Geological Survey, Map GP-240. 

KEYWORDS: geophysics 

, aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

174 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Terre Hill 

Quadrangle, Lancaster and Berks Counties, Pennsylvania: U.S. Geologial Survey, Map GP-242. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 

175 M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the West York 

Quadrangle, York County, Pennsylvania: U.S. Geological Survey, Map 

GP-282. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 55 

176M BROMERY, R.W., AND OTHERS, 1961, Aeromagnetic map of the Womelsdorf 

Quadrangle, Berks, Lebanon, and Lancaster Counties, Pennsylvania: 

u.s. Geological Survey, Map GP-239. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

a·aAPS: Geophys: aeromagneti sm [1: 24,000] 

177M BROMERY, R.W., AND OTHERS, 1963, Aeromagnetic map of the Joplin Quadrangle, Prince William and Stafford Counties, Virginia: U.S. Geological Surv~y, Map GP-390. 

KEYWORDS: geophysics 

aeromagnet i1 sm 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: aeromagnetism [1:24,000] 

178M : BROMERY, RANDOtPH W., 1967, Simple Bouguer gravity map of Massachusetts: U.S. Geological Survey, Map GP-612. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Massachusetts 

MAPS: Geophys: gravity [1:250,000] 

179 F BROPHY, GERALD P., FOOSE, RICHARD M., SHAW, FREDERICK C., AND SZEKELY, 

THOMAS S., 1967, Triassic geologic features in the Connecticut Valley 

near Amherst, Massachusetts: in, Robinson, P., ed., Field Trips in 

the Connecticut Valley, Massachusetts, New England Intercollegiate 

Geological Conference, 59th Meeting, p. 61-72. 

SUMMARY: Field stop~ in the Mt. Tom-Mt. Holyoke area include the pegmatitic facies of the Holyoke basalt, exposures of the upper Sugarloaf and 

Longmeadow ,formations, the volcanic features of the Mountain Park 

area, and the Chicopee shale dinosaur track locality. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geol: sketches 
Page 56 

180 F BROUGHTON, PAUL, 1964, Arlington Quarry, Leesburg, Va.: The Mineralogist, v. 32, no. 4, p. 10-11. 

SUMMARY: Zeolites are described from the diabase quarry along Goose Creek at 

Route 7. Prehnite, stilbite, and diabantite occur in vertical veins 

and seams. 

KEYWORDS: mineralogy 

zeolites 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun County, Leesburg Quad. 

MAPS: Mise: quarry location 

181 p BROWN, C.B., 1937, Outline of the geology and mineral resources of 

Goochland County, Virginia: Virginia Geological Survey, Bulletin No. 

48, 68 p. 

SUMMARY: Red and gray sandstone, shale, and coal seams occur within the 

northern end of the Richmond Basin in eastern Goochland County. 

Coal seams, gray sandstone and shale occur along the western and 

eastern margins and comprise the basal Triassic section. The 

history of coal mining in the area is outlined, and several seams (7 

ft., 12ft., 4ft.) of coal at Manakin and elsewhere are briefly 

described. 

KEYWORDS: general geology 

economic geology 

coal 

GEOGRAPHIC AREA: Richmond Basin, Virginia, Goochland Co. 

MAPS: Geol: [1:125,000] 

182 PM: BROWN, CARL BARRIER, 1932, A new Triassic area in North Carolina: 

American Journal of Science, v. 23, 5th series, p. 525-528. 

SUMMARY: The Triassic outlier in Davie County of the Dan River Basin is 

discussed. Features include basal conglomerate composed of schist 

and gneiss fragments, arkosic beds containing lignitized wood 

fragments, diabase dikes, and numerous faults developed along the 

west edge (see Thayer, P., 1967). 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Davie County Basin (Dan River), North Carolina 

MAPS: Geol: [1:97,477] 
183M : BROWN, C.E., 1974, Contour map of the bedrock surface, Branford 

Quadrangle, Connecticut: U.S. Geological Survey, Map MF-560c. 

KEYWORDS: general geoTogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to basement [1:24,000] 

Page 57 

184 A BROWN, L., KANTOR, L.K., AND GUNTER, K.O., 1977, Preliminary report on 

paleomagnetic studies, Connecticut Rift Valley: American Geophysical 

Union, Transactions, v. 58, p. 376. 

SUMMARY: Samples from:the Deerfield diabase, Holyoke basalt, and their 

associated sediments (Turners Falls s.s., Sugarloaf ark.) indicate 

that pole positions for sediments do not correspond to overlying and 

underlying igneous rocks. Correlations of igneous rocks between the 

basins is possible, but magnetic acquisition for hematite in the 

red-beds needs to be further understood. 

KEYWORDS: geophysics . pa 1 eomagnet 1

i sm 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Massachusetts 

185 A BROWN, LAURIE, AND KELLY, WILLIAM M., 1979, Paleomagnetism, magnetic 

character and oxide mineralogy of the Lower Jurassic Deerfield diabase, Central Massachusetts: Geological Society of America, Abstracts 

with Programs, v. 11, p. 5. 

SUMMARY: The calculated pole position (53°N, 89.1°E) correlates with the 

Holyoke basalt (S. Mass.) and the Talcott basalt (Conn.). Above the 

Curie point, titano-magnetite oxidizes to magnetite and ilmenite and 

then to hematite plus rutile. At lower temperatures, the alteration 

results in hematite, maghemite, and sphene. (The Deerfield samples 

were from 12 sites; I=13.6°, D=11°.) 

KEYWORDS: geophysics' 

paleomagne~ism 

mineraloqy 

basalt 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 
186 A BROWN, L.L., 1979, Magnetic observations of the red beds of the 

northern Connecticut Valley - DRM or CRM?: American Geophysical 

Union, Transactions, v. 60, p. 815. 

Page 58 

SUMMARY: Magnetic remanence of the Turners Falls sandstone and the Sugarloaf arkose is CRM. Sediments both above and below the Deerfield 

diabase yield different directions than the diabase itself. 

Little, if any, detrital hematite is thought to be present. 

Methods and magnetization values are provided. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

187 T : BROWN, R.H., 1974, The Argana Basin: a Triassic model for early 

rifting: M.S. Thesis, Columbia University, 54 p. 

KEYWORDS: tectonics 

GEOGRAPHIC AREA: Morocco 

188 A BROWN, ROY H., 1974, The Argana Basin of Morocco: A basin analysis of 

a Triassic rift: Geological Society of America, Abstracts with 

Programs, v. 6, no. 1, p. 7-8. 

SUMMARY: The depositional and igneous history of the basin is outlined 

beginning with basal conglomerates derived from the east and grading 

upward into sands and muds. Igneous extrusives caused local ponding 

and development of lacustrine carbonate beds. Later marine 

transgression developed a cover of carbonates and evaporites. 

KEYWORDS: general geology 

sedimentation 

G~OGRAPHIC AREA: Morocco 
Page 59 

189 p BROWN, ROY H., 1980, Triassic rocks of Argana Valley, Southern 

Morocco, and their regional structural implications: American 

Association of Petroleum Geologists, Bulletin, v. 64, p. 988-1003. 

SUMMARY: The clastic deposits of the basin system comprise a lower, coarse 

fluvial; a central, lacustrine- deltaic; and an upper, mud plainsalt flat facies. The tectonic development of the graben system and 

its integral west-trending fault blocks is outined. 

KEYWORDS: sedimentation 

general geology 

structure 

tectonics 

GEOGRAPHIC AREA: Morocco 

MAPS: Geol: SW Morocco; Argana Valley 

Section: Argana Valley stratigraphy 

Mise: cross-stratification azimuths 

190 PM: BROWN, WILLIAM RANDALL, 1969, Geology of the Dillwyn Quadrangle, 

Virginia: Virginia Division of Mineral Resources, Report of Investigations 10, 77 p. 

SUMMARY: The northern end of the Farmville Basin, bounded on the west by a 

normal border fault, consists of gneissic and quartzitic conglomerate adjacent to the fault, with clast size decreasing eastward. 

Conglomeratic arkose and pale-green feldspathic graywacke occur 

toward the east, the latter containing quartz, epidote, chlorite, 

and plagioclase. Diabase dikes in the area trend N 20°W. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Farmville Basin, Virginia, Cumberland County, Gold Hill 

Quad. 

MAPS: Geol: [1:62,500] 

DATA: Photos: conglomerate 

191 T : BROWNSON, A.R., 1915, Stratigraphy of the Triassic in eastern North 

Carolina: M.S. Thesis, University of North Carolina. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 
Page 60 

192 P BRUNET, W.M., 1980, Minerals of the trap rock ridges of the Connecticut Valley, with emphasis on Reed•s Gap quarry near Durham: Rocks 

and Minerals, v. 55, p. 232-235. 

SUMMARY: Zeolite minerals found at several Hartford Basin basalt quarries are 

described. Photos are provided. Locations of quarries are included. 

KEYWORDS: basalt 

zeolites 

mi nera 1 ogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

193 P : BRUSH, GRACES., 1966, The absence of pollen and spores in some 

Triassic sediments: Journal of Paleontology, v. 40, p. 1241-1243. 

SUMMARY: Samples of Lockatong, Brunswick, and Stockton Formations yielded no 

fossil pollen; the Cumnock Formation of the Richmond Basin yielded 

pollen. Absence of pollen from 100 samples from U.S. basins and 

Eastern Canada is attributed to oxidation factors during sedimentation. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

194 P BRYAN, W.B., FREY, F.A., AND THOMPSON, G., 1977, Oldest Atlantic 

seafloor: Contributions to Mineralogy and Petrology, v. 64, p. 

223-242. 

SUMMARY: Deep Sea Drilling Project Leg 11 basalts are shown to be geochemically simi~ar to Mid-Atlantic Ridge basalts. Age of the basalts is 

estimated at 150 million years. High K and Sr87/Sr86 values may 

reflect crustal contamination of the magmas. Deep mantle 11 plumes 11 

may have led to the observed LIL-element enrichment and the 

incipient rifting. 

KEYWORDS: geochemistry 

basalt 

GEOGRAPHIC AREA: Regional 

MAPS: Mise: site locations 

DATA: Chern. (type of data): augite, plagioclase, olivine, trace elements, 

REE•s 

Photos: olivine spinifex 
Page 61 

195 A BRYAN, W.B., THOMPSON, G., AND FREY, F.A., 1975, Mesozoic basalts 

associated with early stages of Atlantic rifting: Geological Society 

of America, Abstracts with Programs, v. 7, p. 33. 

SUMMARY: Western Atlantic basalts from DSDP sites 100 and 105 are preOxfordian and resemble many modern Mid-Atlantic Ridge basalts. 

Compared to these and the more evolved seafloor basalts, the 

Hartford and Newark basin flows are less calcic and more potassic. 

Such composition may reflect oceanic basalt fractionation and 

crustal contamination implying a long residence time in the lower 

crust. 

KEYWORDS: geochemistry 

petrology 

basalt 

GEOGRAPHIC AREA: Regional 

196 P BRYANT, WILLIAM L., 1934, New fishes from the Triassic of Pennsylvania: American Philosophical Society, Proceedings, v. 73, no. 5, 

p. 319-326. 

SUMMARY: Fossil fish and sharks from black shale of the Lockatong Formation 

are described in detail. Plants and dinosaur tracks also occur at 

this locality, about one mile south of North Wales along the 

Philadelphia-Reading Railroad. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Norristown County 

DATA: Photos: fish and shark fossils 

197 T : BRYSON, H.J., 1924, Stratigraphy of Deep River coals: M.S. Thesis, 

University of North Carolina. 

KEYWORDS: general geology 

economic geology 

coal 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 
198 F BUCHER, WALTER H., AND KERR, PAUL F., 1948, Excursion to the First 

Watchung basalt at Paterson, New Jersey: Geological Society of 

America, 61st Annual Meeting, Guidebook, p. 109-119. 

Page 62 

SUMMARY: Discussions of the basalt flow include structure (columnar, 

vesicular zones, pillows) and mineralogy (anhydrite, glauberite, 

zeolites). 

KEYWORDS: structure 

basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Mise: sketch of Prospect Park Quarry 

199 A BURGER, H.R., AND ATAMAN, PERI, 1984, Thicknesses of Mesozoic 

sedimentary rocks, Hartford Basin, Massachusetts, as interpreted from 

Bonquer gravity: Geological Society of America, Abstracts with 

Programs, v. 16, p. 7. 

SUMMARY: It is suggested that the Paleozoic basement surface dip southward 

at 15 degrees resulting in a change of basin depth of from 1 km 

(north) to 7.5 km just south of the Conn.-Mass. line. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

200 A BURGER, H.R., III, BARLOW, L.K., NEGRIN!, R.M., AND UPTON, E.G., 1980, 

A gravity investigation of the Connecticut Valley, Massachusetts: 

Geological Society of America, Abstracts with Programs, v. 12, p. 395. 

SUMMARY: Preliminary results indicate that the western margin of the Hartford 

Basin is a fault which dips eastward at 40 degrees, and that the New 

Haven Formation is at least 4 km thick just 4 km inside the margin. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
Page 63 

201 PM: BURGER; HENRY ROBERT, III, 1967, Stratigraphy and structure of the 

western part of the New Haven Quadrangle, Connecticut: Connecticut 

Geological and Natural History Survey, Report of Investigations no. 4, 

15 p. 

SUMMARY: Emphasis is placed upon pre-Triassic metamorphic rocks on the west 

side of the basin. The New Haven arkose contact with these rocks is 

mapped, but the formation is not discussed. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven 

MAPS: Geol: [1:57,600] 

202 P : BURK, C.A., AND DRAKE, C.L., eds., 1974, The geology of continental 

margins: Springer-Verlag, New York, 1009 p. 

SUMMARY: This volume contains papers concerning the general geology and 

mineral resources of continental margins. Discussion of the Early 

Mesozoic offshore geology of the Atlantic margin is included. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Regional 

203 p BURKE, K.B.S., HAMILTON, J.B., AND GUPTA, V.K., 1973, The Caraquet 

Dike: its tectonic significance: Canadian Journal of Earth Sciences, 

v. 10, p. 1760-1768. 

SUMMARY: The Caraquet Dike has been mapped on the ground between Wayerton and 

Caraquet, New Brunswick; and it has been extended an additional 250 

miles to the southwest, well into Maine, by aeromagnetics. Origin 

of the diabase dike is attributed to tensile stress during rifting, 

and faults offsetting the dike may represent rotation of pole posi- 1t 

tions. 

KEYWORDS: tectonics 

geophysics 

aeromagnetism 

magnetism 

general geology 

GEOGRAPHIC AREA: New Brunswick, Canada 

MAPS: Geophys: magnetic profile locations 

Mise: regional setting 
Page 64 

204 P : BURKE, KEVIN, 1976, Development of graben associated with the initial 

ruptures of the Atlantic Ocean: Tectonophysics, v. 36, p. 93-112. 

SUMMARY: This is a generally descriptive account of the entire circumAtlantic rift system. Processes of rifting and timing of basin 

formation with marine transgression are outlined. 

KEYWORDS: tectonics 

GEOGRAPHIC AREA: Regional 

205 p BURT, E.R., CARPENTER, P.A., III, MCDANIEL, R.D., AND WILSON, W.F., 

1978, Diabase dikes of the eastern Piedmont of North Carolina: North 

Carolina Geological Survey Information Circular 23, 12 p. 

SUMMARY: Geologic mapping and aeromagnetics indicate two major sets: N 

10°-30°W-trending and north-trending dikes with a minor NE-trending 

set. The dikes cut all other structures and reflect deep-seated 

stresses. Different dike sets may be attributed to age, chemistry, 

or stress system differences. Magnetic variability of the dikes may 

be attributed to varying magma chemistry or host-rock lithology. 

KEYWORDS: general geology 

diabase 

structure 

GEOGRAPHIC AREA: North Carolina 

MAPS: Geol: (bar scale) dikes 

206 P : BUTLER, B.S., AND BURBANK, W.S., 1929, The copper deposits of 

Michigan: U.S. Geological Survey Professional Paper 144, 238 p. 

SUMMARY: A short discussion of some native copper occurrences in the Mesozoic 

basalt flows in the Hartford basin of Connecticut is given. 

KEYWORDS: basalt 

mineralogy 

economic geology 

copper 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 65 

207 P BUTLER, J.R., AND DUNN, D.E., 1968, Geology of the Sauratown Mountains 

anticlinorium and vicinity, North Carolina: Southeastern Geology, 

Special Publication 1, p. 19-47. 

SUMMARY: An exposure i.s described (stop 3A) of a silicified mylonite zone of 

probable Mesozoic age (Stony Ridge Fault), cutting obliquely across 

the Sauratown Mtn. anticlinorium. The authors note that Triassic 

conglomerates near the fault contain weathered cobbles of mylonite, 

implying the mylonite zones are older faults locally rejuvenated during the Triassic. 

KEYWORDS: faults 

tectonics 

GEOGRAPHIC AREA: Dan River Basin, North Carolina 

208 p BUTLER, JAMES ROBERT, AND HOWELL, D.E., 1976, Geology of the Taxahow 

Quadrangle, Lancaster County, South Carolina: South Carolina Division 

of Geology, Geologic Notes, v. 20, p. 133-149. 

SUMMARY: This quadrangle, which is just SW of the southern-most exposed 

basin, contains over 30 diabase dikes, one of which is 340-m thick. 

The position of several of the dikes is shown, but no detailed 

discussion is presented. Mineralogically, the dikes consist of 

plagioclase, augite, olivine (3-20%), and opaques. 

KEYWORDS: general geology 

diabase 

GEOGRAPHIC AREA: South Carolina 

MAPS: Geol: sketches 

209 A : BUTLER, S.B., 1944, Fluorescent palisades hyalite: Rocks and 

Minerals, v. 19, p. 349. 

SUMMARY: Hyalite, fluorescent 11 Vivid green, .. forms crusts associated with 

carnotite in a fine-grained arkose. The locality is one mile north 

of the George Washington Bridge. 

KEYWORDS: mineralogy 

economic geology 

uranium 

GEOGRAPHIC AREA: Newark Basin, New York, Bergen Co. 
Page 66 

210 T : BYRNES, J.B., 1972, The bedrock geology of Dinosaur State Park, Rocky 

Hill, Connecticut: M.S. Thesis, University of Connecticut, 244 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

211 A BYRNES, J.B., AND HORNE, J.C., 1974, Alluvial fan to marine facies of 

Connecticut Valley Triassic: American Association of Petroleum 

Geologists, Annual Meeting, Abstracts, v. 1, p. 15. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

212 T 

c 

CAAMANO, EDWARD, 1981, A geochemical investigation of the northern 

portion of the Palisades diabase intrusion and New City Park dike, 

Rockland County, New York: M.S. Thesis, Rutgers University, 66 p. 

KEYWORDS: geochemistry 

petrology 

diabase 

GEOGRAPHIC AREA: Newark Basin, New York 

213 P : CADY, R.C., 1938, Ground-water resources of Northern Virginia: 

Virginia Geological Survey, Bulletin 50, 200 p. 

SUMMARY: The ground-water properties of the Triassic sediments and diabase 

are investigated. Several well logs are presented that transect the 

sediments. Water hardness of diabase is shown to be 350 ppm, and 

that for the sediments is about 200 ppm. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co., Prince William Co. 

MAPS: Section: well logs 
Page 67 

214 A CALLAHAN, JOHN E., 1976, Are there Witwatersrand types of gold 

deposits in the Triassic basins of the Southeast?: Geological Society 

of America, Abstracts with Programs, v. 8, p. 144-145. 

SUMMARY: Potential for gold deposits within the Triassic sediments is 

suggested by the presence of numerous gold deposits in the adjacent 

Piedmont - the sediment source. Basin sediments are shown to be 

unmetamorphosed analogues of the Witwatersrand system. 

KEYWORDS: economic geology 

gold 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

215 A CALLAHAN, JOHN E., 1979, An exploration for Triassic age gold and 

uranium occurrences in the Northern Wadesboro and Southern Sanford 

Basins: Geological Society of America, Abstracts with Programs, v. 

11, p. 173. 

SUMMARY: Stream sediment samples yielded uranium values of {1-1.6 ppm), with 

thorium present {112-853 ppm) in 5 of 18 samples. One anomalous 

site near Covenington yielded 8.5 ppm U and 5 ppm Th. Gold values 

as high as .83 ppm (stream sed.) and 7.2 ppm (panned cone.) were 

obtained with a pattern of high values near Mangum, N.C. The source 

of the sediments, may, however, be from rocks younger than the 

Triassic. 

KEYWORDS: economic geology 

gold 

GEOGRAPHIC AREA: Wadesboro Basin, Sanford Basin, North Carolina 

216 P : CALLAHAN, W.H., AND NEWHOUSE, W.H., 1929, A study of the magnetite ore 

body at Cornwall, Pennsylvania: Economic Geology, v. 24, p. 403-411. 

SUMMARY: The magnetite deposit is considered a replacement of shaley limestone by fluids from the adjacent diabase. Ore-body mineral zonation is outlined and includes: tremolite, talc, pyrite, chalcopyrite, and brown magnetite increase with distance from the sharp, 

ore-diabase contact, while other silicates (green biotite and 

augite) are more abundant towards the diabase. Apatite is a conspicuous component of the Footwall diabase. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsyvania, Lebanon Co., Lebanon Quad. 
Page 68 

217 p CAMPBELL, F.H., III, AND COLE, J.M., JR., 1961, A re-evaluation of a 

diabase dike near Greenville, Augusta County, Virginia: The Compass, 

v. 38, p. 69-77. 

SUMMARY: A diabase dike in the Appalachian Valley Province is remapped by ground magnetics. It is shown to follow pre-existing joint patterns 

in the intruded sedimentary rocks. 

KEYWORDS: general geology 

geophysics 

magnetism 

GEOGRAPHIC AREA: Virginia, Augusta Co. 

MAPS: Geol: dike location 

Geophys: magnetic profiles 

218 PM: CAMPBELL, M.R., AND KIMBALL, K.K., 1922, Sketch map and description of 

a previously unmapped part of the Triassic coal fields of North 

Carolina: U.S. Geological Survey Open-File Report 514, 4 p. 

SUMMARY: A portion of northern Richmond County is mapped and the eastern 

Piedmont contact shown. The geology of the area, only several 

square miles, is discussed. 

KEYWORDS: general geology 

coal 

GEOGRAPHIC AREA: Deep River Basin, North Carolina, Richmond Co. 

MAPS: Geol: [1:63,360] 

219 PM: CAMPBELL, MARIUS R., AND KIMBALL, KENT W., 1923, The Deep River Coal 

Field of North~Carolina: North Carolina Geological and Economic 

Survey, Bulletin no. 33, 95 p. 

SUMMARY: The geologic formations (Pekin, Cumnock, and Sanford), the 

structure, and the character of the coal beds are discussed. The 

Cumnock coal seam and mine are described. The coal is considered of 

poor quality, but continued exploration is urged. 

KEYWORDS: economic geology 

coal 

structure 

genera 1 geo 1 ogy 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

MAPS: Geol: [1:63,360] 

Section: coal bed sections 

DATA: Photos: Cumnock coal bed and mine, Jonesboro fault 
Page 69 

220 T CAREY, P.J., 1974, Sedimentology of inferred mudflat and lake 

deposits, East Berlin Formation, Holyoke, Massachusetts: M.S. Thesis, 

University of Massachusetts, 95 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

221 P : CAREY, S. WARREN, ED., 1958, Dolerite: a symposium: Tasmania 

University, Department of Geology, 274 p. 

SUMMARY: The 20 papers presented in this volume consider dolerite intrusions 

in general and include topics relating to the differentiation, 

petrography, structure, and geophysical exploration of diabase, 

primarily in Tasmania but also in South Africa and the Eastern U.S. 

basins. 

KEYWORDS: diabase 

GEOGRAPHIC AREA: Regional 

222 PM: CARLSTON, CHARLES W., 1946, Appalachian drainage and the highland 

border sediments of the Newark series: Geological Society of America, 

Bulletin, v. 57, p. 997-1032. 

SUMMARY: A detailed petrographic and regional study of the border fanglomerates in the Newark Basin show no correlation with present 

drainage patterns. Streams that deposited the conglomerates were 

short and steep, and their sediment composition reflects the rock 

types exposed in the adjacent highlands. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey and Pennsylvania 

MAPS: Geol: [1:506,880] 
Page 70 

223 p CARMICHAEL, C.M., AND PALMER, H.C., 1968, Paleomagnetism of the Late 

Triassic, North Mountain basalt of Nova Scotia: Journal of 

Geophysical Research, v. 73, no. 8, p. 2811-2822. 

SUMMARY: K-Ar calculations indicate a 200+10 m.y. age for the basalt which 

yields bimodal NRM directions that correlate stratigraphically 

indicating two periods of extrusions separated by a period of 

non-extrusion. The pole position of 104°E, 73°N is closer to the 

present pole position than to that in U.S. Triassic rocks. 

KEYWORDS: geophysics 

paleomagnetism 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Maritime, Canada 

MAPS: Mise: sample locations 

DATA: Plots: pole positions 

~24 P : CAROZZI, ALBERT V., 1964, Complex ooids from Triassic lake deposit, 

Virginia: American Journal of Science, v. 262, no. 2, p. 231-241. 

SUMMARY: Complex and reworked ooids from a lacustrine limestone of the 

Manassas Formation are described. The location is on St. Rt. 3, 3.5 

miles east of Culpeper. This rare occurrence of abundant complex 

ooids is typical of local reworking within a shallow water 

environment. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Culpeper Co., Culpeper East Quad. 

DATA: Photos: ooids (3 plates) 

225 M CARPENTER, P. ALBERT, III, 1982, Geologic map of Region G, North 

Carolina: North Carolina Geological Survey Section, Regional Geology Series 2. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Dan River Basin, North Carolina, Rockingham County 

MAPS: Geol: [1:130,000] 
Page 71 

226 p CARTER, S.R., EVENSEN, N.M., HAMILTON, P.J., AND 01 NIONS, R.K., 1979, 

Basalt magma sources during the opening of the North Atlantic: 

Nature, v. 281, p. 28-30. 

SUMMARY: Tertiary volcanics in Greenland and Scotland display positive 

delta-Nd and negative delta-Sr values indicating involvement of a 

depleted mantle and crustal contamination. Isotopic character of 

the basalts is similar to present-day sub-oceanic mantle. 

KEYWORDS: basalt 

geochemistry 

Nd/Sr isotopes 

Rb/Sr isotopes 

GEOGRAPHIC AREA: North Atlantic 

227 T CHALCRAFT, RICHARD G., 1972, A petrographic study of Mesozoic 

dolerites from eastern North Amer~ica: Ph.D. Thesis, University of 

North Carolina. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Regional 

228 P : CHALCRAFT, RICHARD G., 1976, The petrology of Mesozoic dolerite dikes 

in South Carolina: Geologic Notes, v. 20, no. 2, p. 52-61. 

SUMMARY: Chemical and petrographic analysis of 16 dikes indicates that they 

are olivine rich (MgO = 10.71%), possibly attributed to deep-level 

fractionation intersected by thE~ present erosional surface or to a 

distinctly different magma parent. However, REE data indicate that 

rapid magma ascension and lack of contamination or differentiation 

(Ragland, et al., 1971) resulted in the S. Carolina olivinenormative suite. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: South Carolina 

DATA: Chern. (type of data): major oxide 
229 p 

Page 72 

CHANDLER, WILLIAM E., JR., 1978, Graben mechanics at the junction of 

the Hartford and Deerfield Basins of the Connecticut Valley, 

Massachusetts: University of Massachusetts, Department of Geology and 

Geography, Contribution No. 33, 151 p. 

SUMMARY: A detailed analysis of the Amherst-Belchertown region is presented. 

Conclusions reached include: two sets of normal faults, a preMesozoic controlled N 30°E set and a Mesozoic N 80°E set; no evidence for strike-slip motion as suggested by Bain (1941); and the 

Amherst block, a structural high due to the Belchertown complex, 

separates the two basins. 

KEYWORDS: faults 

structure 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Massachusetts 

MAPS: Geol: plots of structural data 

Mise: block diagrams 

230 T : CHANG, C.C., 1968, A gravity study of the Triassic Valley in southern 

Connecticut: M.S. Thesis, Wesleyan University, 108 p. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

231 P : CHAPIN, J.H., 1887, The Hanging Hills: Meriden Science Association 

Proceedings and Transactions, v. 2, p. 23-28. 

KEYWORDS: basalt 

surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

232 P : CHAPIN, J.H., 1889, The trap ridges of Meriden again: Meriden Science 

Association Proceedings and Transactions, v. 3, p. 35-36. 

KEYWORDS: basalt 

surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 73 

233 P : CHAPIN, J.H., 1891, Some geological features of Meriden: Meriden 

Science Association Proceedings and Transactions, v. 4, p. 58-61. 

KEYWORDS: general geology 

basalt 

surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

234 p CHAPMAN, RANDOLPH W., 1950, Contact-metamorphic effects of Triassic 

diabase at Safe Harbor, Pennsylvania: Geological Society of America, 

Bulletin, v. 61, p. 191-220. 

SUMMARY: A detailed study of the pyroxene hornfels facies zones in a schist 

and dolomite intruded by diabase is presented. The mineralogy and 

petrography of the reactions zones are discussed. Thermal effects 

characterize inner zones, and hydrothermal effects characterize 

outer zones of alteration. Equilibrium reactions are outlined. 

KEYWORDS: metamorphism 

hornfels 

mineralogy 

GEOGRAPHIC AREA: Lancaster County, Pennsylvania 

MAPS: Mise: outcrop map [1:1200] 

DATA: Photos: outcrops, photomicrographs 

235 p CHAPMAN, RANDOLPH W., 1965, Stratigraphy and petrology of the Hampden 

basalt in Central Connecticut: Connecticut Geological and Natural 

History Survey, Report of Investigations no. 3, 38 p. 

SUMMARY: Eight individual flow units of similar petrography and chemistry 

comprise the olivine basalt flows. Pipe vesicles and amygdules 

indicate that flow was northeasterly. The Hampden basalt may be 

distinguished from the Talcott and Holyoke units on physical 

character. Contact metamorphic effects are also discussed. 

KEYWORDS: basalt 

petrology 

general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Middlesex and Hartford 

DATA: Photos: photomicrographs, outcrops 
Page 74 

236 T CHARLES, WILLIAM C., 1960, The east border of the Durham Triassic 

Basin of North Carolina: M.S. Thesis, University of North Carolina, 

47 p. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

237 PM: CHOWNS, T.M., AND WILLIAMS, C.T., 1983, Pre-cretaceous rocks beneath 

the Georgia Coastal Plain- regional implications: in, Gohn, G.S., 

ed., u.s. Geological Survey Professional Paper 1313,]p. L1-L42. 

SUMMARY: Studies of the subsurface units indicate a Triassic basin, 3500 

meters thick, occupying a complex graben. Diabase dikes, basalt 

flows, zeolite hornfels, and red beds occur. Well logs, the 

petrography of the sediments, the chemistry of the basalts and 

diabase, and radiometric ages are presented. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Georgia 

MAPS: Geol: [1:1,968,925] 

Section: well logs, cross section (geol) from Warrenton, Ga., to 

Okeechobee, Fla. 

DATA: Chern. (type of data): diabase 

Plots: diabase chemistry 

238 A CLEMENT, STEPHEN C., 1969, Petrogenesis of an amygdaloidal diabase 

dike, Rawlings Quarry, Virginia: Virginia Journal of Science, v. 20, 

p. 125. 

SUMMARY: The petrography of the dike cross section is presented. A labradorite-rich chill zone, characterized by crystal parallelism by 

flowage, grades into an amygdule-rich, andesine center. Similarly chrysolite in margins grades to titaniferous augite in centers. 

KEYWORDS: diabase 

petrology 

mineralogy 

GEOGRAPHIC AREA: Virginia 
Page 75 

239 p CLEMMENSEN, LARS B., 1980, Triassic rift sedimentation and paleogeography of Central East Greenland: Geological Survey of Greenland, 

Bulletin no. 136, 72 p. 

SUMMARY: The sedimentary facies within a N-S trending, fault-bounded rift 

valley are discussed. Sediment·-hosted copper-lead-zinc occurrences 

are noted. Basal units are conglomeratic fan deposits which grade 

upward into flood plain, playa, and lacustrine deposits. 

KEYWORDS: sedimentation 

economic geology 

copper 

lead 

zinc 

GEOGRAPHIC AREA: Greenland 

MAPS: Section: many strat. columns 

DATA: Photos: outcrops (sedimentary structures) 

240 p CLOOS, ERNST, AND PETTIJOHN, F.J., 1973, Southern border of the 

Triassic Basin, west of York, Pennsylvania: fault or overlap?: 

Geological Society of America, Bulletin, v. 84, p. 523-536. 

SUMMARY: Examination of drill core from just inside the eastern margin of the 

basin at Thomasville indicates the presence of a fault as opposed to 

simple overlap. Triassic units were encountered to a depth of 800 

feet as opposed to the 100 feet expected from dips and contacts just 

to the east, if an overlap is supposed. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., West York Quad. 

MAPS: Section: core logs 

241 p COLBERT, EDWIN H., 1965, A phytosaur from North Bergen, New Jersey: 

American Museum Novitates, no. 2230, 25 p. 

SUMMARY: A quarry at Granton, a mile west of the Hudson, has yielded fish, 

tetrapods, and a phytosaur, outlined in the study. The occurrence 

is in the Lockatong Formation. Several pages are also devoted to a 

discussion of other phytosaurs from the Triassic Basins. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 76 

242 p COLBERT, EDWIN H., AND GREGORY, JOSEPH T., 1957, Correlation of continental Triassic sediments by vertebrate fossils: Geological Society 

of America, Bulletin, v. 68, p. 1456-1467. 

SUMMARY: A review of the faunal composition of the Newark Group as well as 

the Dockum Group, Chinle Fm., and Chugwater Fm. is presented. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

243 p COLBERT, EDWIN HARRIS, 1963, Fossils of the Connecticut Valley- the 

age of dinosaurs begins: Connecticut Geological and Natural History 

Survey, Bulletin no. 96, 31 p. 

SUMMARY: An outline ·of the paleontology of the Hartford and Deerfield basins 

is presented and includes the historic discoveries, plant, fish, and 

reptile fossils. Numerous sketches are included. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Connecticut, Massachusetts 

244 PM: COLLINS, GLENDON E., 1954, The bedrock geology of the Ellington 

Quadrangle: Connecticut Geological and Natural History Survey, 

Quadrangle Report No. 4, 44 p. 

SUMMARY: The Triassic Portland Arkose occupies the west half of the 

quadrangle and consists of red, micaceous, arkose, sandstone and 

conglomerate, which contains pebbles derived from the crystallines 

to the east. A steeply dipping normal fault forms the eastern 

border of the basin, and outcrops are rare. The petrography of a 

diabase dike within the crystalline rocks is discussed. 

KEYWORDS: surficial geology 

mineralogy 

petrology 

diabase 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Tollan Co., Ellington Quad. 

MAPS: Geol: [1:31,680] 

Mise: depth to bedrock 
Page 77 

245M : COLTON, ROGER B., 1965, Geology of the Broad Brook Quadrangle: U.S. 

Geological Survey, Geologic Quadrangle Map GQ-434. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co., Tolland Co. 

MAPS: Geol: [1:24,000] 

246M : COLTON, ROGER B., 1965, Geology of the Manchester Quadrangle: U.S. 

Geological Survey, Geologic Quadrangle Map GQ-433. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co., Tolland Co. 

MAPS: Geol: [1:24,000] 

247M COLTON, ROGER B., AND HARTSHORN, JOSEPH H., 1966, Bedrock geology of 

the West Springfield Quadrangle: u.s. Geological Survey, Geologic Quadrangle Map GQ-537. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts, Hartford Co. 

(Conn.), Hampden Co. (Mass.) 

MAPS: Geol: [1:24,000] 

248 F CONLEY, J.F., AND JOHNSON, S.S., 1975, Road log of the geology from 

Madison to Cumberland Counties in the Piedmont, Central Virginia: 

Virginia Minerals, v. 21, no. 4, p. 29-38. 

SUMMARY: This road log includes stops in Triassic conglomerate and volcanic 

agglomerate along State Road 721 and at the intersection of State 

Roads 720 and 686. Mafic lava flows (basalt) occur in a quarry SE 

of the intersection of Roads 522 and 647. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Culpeper County 

MAPS: Geol : sketch 
Page 78 

249 PM: CONLEY, JAMES F., 1962, Geology and mineral resources of Moore County, 

North Carolina: North Carolina Division of Mineral Resources, 

Bulletin 76, 40 p. 

SUMMARY: The basal Pekin Formation, the Cumnock Formation, and the Sanford 

Formation are described and mapped. Depositional environments and 

structure are outlined. Three ages of faults are present. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Sanford Basin, North Carolina, Moore Co. 

MAPS: Geol: [1:62,500] 

Section: geologic cross sections 

250 P : COOK, GEORGE H., 1868, Geology of New Jersey: New Jersey Geological 

Survey, 900 p. 

SUMMARY: The age of the Triassic rocks, discussions of the basalt mountains 

and sedimentary units, and copper and barite occurrences are 

presented. A section on historical geology raises questions on the 

origin of iron in the sediments and the relation of the trap-rocks. 

{This a is particularly good reference dealing with early views and 

descriptions of the Triassic rocks and the copper ores.) 

KEYWORDS: general geology 

basalt 

economic geology 

copper 

barite 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

251 P : COOK, GEORGE H., 1882, Red sandstone district: New Jersey Geological 

Survey, Annual Report of the State Geologist, 1882, p. 11-66. 

SUMMARY: A review is given of the research developments on the Newark Basin. 

The rocks are described along with a table of over 100 strike and 

dip measurements. Regional tilting of beds is attributed to subsidence. Twenty pages are devoted to detailed description of the 

trap-rock mountains. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 79 

252 p COOK, GEORGE H., 1883, Miscellaneous - copper ores: New Jersey 

Geological Survey, Annual Report of the State Geologist, 1883, p. 

164-166. 

SUMMARY: A description is given of the sandstone-hosted copper deposits 

adjacent to the Watchung basalts. Beds of ore at the Bridgewater 

mine in Somerville are 2.5-feet thick. Ore occurs above and below 

the trap-rock, and an obvious exploration procedure is suggested. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

253 p COOK, GEORGE H., 1884, Triassic rocks- columnar trap-rocks of Orange Mountain: Geological Survey of New Jersey, Annual Report of the State 

Geologist, 1884, p. 23-28. 

SUMMARY: A detailed description of the basaltic columns on Orange Mountain is 

given, and their origin is attributed to shrinking during cooling. 

KEYWORDS: general geology 

basalt 

structure 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Essex Co. 

254 P : COOK, M.D., 1971, Exploring the roadcut, Route 66, Connecticut: Rocks 

and Minerals, v. 46, p. 189. 

KEYWORDS: basalt 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

255 P : COOK, T.A., 1933, Geology of Connecticut: Hartford, Connecticut, The 

Bond Press, 112 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

256 T : COPELAND, R.E., 1974, The geology of the northern portion of the 

Wadesboro Triassic Basin: M.S. Thesis, University of Florida. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Wadesboro Basin, North Carolina 
257 T : CORNET, BRUCE, 1977, The palynostratigraphy and age of the Newark 

Supergroup: Ph.D. Thesis, Pennsylvania State University, 506 p. 

Page 80 

SUMMARY: The classic palynological study to date which clearly establishes a 

late Triassic - early Jurassic age for Newark Supergroup strata in 

Eastern North America. 

KEYWORDS: paleontology 

general geology 

GEOGRAPHIC AREA: Regional 

258 p CORNET, BRUCE, AND TRAVERSE, ALFRED, 1975, Palynological contributions 

to the chronology and stratigraphy of the Hartford basin in 

Connecticut and Massachusetts: Geoscience and Man, v. 11, p. 1-33. 

SUMMARY: Twenty-seven genera and 42 species of palynofloras are described and 

indicate that the Triassic-Jurassic boundary is within the basin. 

The Shuttle Meadow formation is shown to be of basal Liassic age, 

and the Jurassic boundary may lie just below this formation. The 

Corollina-based floras indicate a warm, seasonally wet and dry 

climate. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut and Massachusetts 

259 p CORNET, BRUCE, TRAVERSE, ALFRED, AND MCDONALD, N.G., 1973, Fossil 

spores, pollen, and fishes from Connecticut indicate Early Jurassic 

age for part of the Newark Grou~: Science, v. 182, p. 1243-1247. 

SUMMARY: Coniferous·pollen of the Circulina-Classopollis type and fossil fish 

semionotids indicate an Upper Triassic age for the Cumnock {N.C.}, 

Vinita {Va.}, and New Oxford {Pa.} Formations, and a Rhaeto-Liassic 

age for the Brunswick {N.J.}, Portland {Conn., Mass.}, and Shuttle 

Meadow {Conn.} Formations. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

DATA: Photos: fish, spores, pollen 
260 p 

Page 81 

CORNWALL, H.R., 1945, The Arlington Copper Mine, North Arlington, New 

Jersey: U.S. Geological Survey Strategic Minerals Investigations 

Report [unnumbered, 1943], 6 p. 

SUMMARY: Copper mineralization of the Ar'lington Mine (also Schyler Mi.e) is 

stratabound in an arkosic sandstone layer in the Brunswick 

Formation, overlying a thin (few feet thick) diabase sill. 

Mineralization is best developed in a zone 4 to 8 feet thick. 

Chalcocite, chrysocolla, and malachite are the dominant ore 

minerals. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: sketch map of mine site 

261 T CORRIGAN, DONALD, 1973, The paleomagnetism and magnetic mineralogy of 

the Medford diabase dike (Medford area of Boston, Massachusetts): 

M.S. Thesis, University of Rhode Island. 

KEYWORDS: geophysics 

paleomagnetism 

mineralogy 

diabase 

GEOGRAPHIC AREA: Eastern Massachusetts 

262 A COSTAIN, J.K., PRATT, T.L., CORUH, D., GLOVER, L., III, FROELICH, 

A.J., AND ZIEGLER, D., 1982, Reflection seismic characteristics of 

some on-shore Triassic basins in the southeastern United States: 

Geological Society of America, Abstracts with Programs, v. 14, no. 7, 

p. 467-468. 

SUMMARY: Rift-basin seismic analysis is discussed and applied to the Culpeper 

and Scottsville Basins and a buried S. Carolina basin. Maximum 

sediment thicknesses of 2500 and 1700 meters are suggested for 

Culpeper and Scottsville, respectively. Border faults are not distinct in seismic profiling but may be inferred from abrupt truncation and dislocation as seen in the Culpeper Basin. 

KEYWORDS: geophysics 

seismic profiles 

GEOGRAPHIC AREA: Culpeper Basin, Scottsville Basin, Virginia 
Page 82 

263 P COUSMINER, HAROLD L., AND MANSPEIZER, WARREN, 1976, Triassic pollen 

date Moroccan high atlas and the incipient rifting of Pangea as Middle 

Carnian: Science, v. 191, p. 943-945. 

SUMMARY: Palynomorphs from the Moroccan Upper Triassic are equated with the 

lower Newark group in the Taylorsville, Richmond, and Deep River 

Basins, and the lower New Oxford Formation of the Gettysburg Basin. 

Newark sediments in New Jersey and New England are considered 

younger, Rhaetic to Liassic. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional, Morocco 

DATA: Plots: palynomorph time-table species chart 

264 P CRAMER, HOWARD ROSS, 1960, Bibliography and index of Triassic 

paleontology in Pennsylvania: Pennsylvania Academy of Science, 

Proceedings, v. 34, p. 96-100. 

SUMMARY: A list of known fossils and 64 references is presented. References 

included discuss specific locations and provide descriptions of the 

fossils. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

265M : CUSHMAN, ROBERT V., 1963, Geology of the Hartford North Quadrangle: 

U.S. Geological Survey, Geologic Quadrangle Map GQ-223. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co. 

MAPS: Geol: [1:24,000] 

266 T : CUSTER, R.L.P., 1966, Paleocurrents of the Triassic Durham Basin, 

North Carolina: M.S. Thesis, North Carolina State University, 34 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Durham Basin, North Carolina 
Page 83 

267 A CUSTER, RICHARD L.P., 1966, Paleocurrents of the Triassic Durham 

Basin, North Carolina: _Elisha Mitchell Scientific Society, Journal, 

v. 22, p. 94. 

SUMMARY: Primary sedimentary structures indicate that current flow was to the 

northeast, though meandering complexity is evident. The deposi- tional environment is considered tropical to humid temperate 

domina\ed, in part, by fresh water lakes and swamps. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

268 A CUSTER, RICHARD L.P., 1967, Occurrences of limestones in the Durham 

Triassic Basin: Elisha Mitchell Scientific Society, Journal, v. 83, 

p. 176. 

SUMMARY: Arenaceous and argillaceoous limestone units up to 2-feet thick are 

found in the east-central area of the basin. Other carbonatecemented units are found to the southwest, are time-equated with the 

coal beds of the Sanford Basin, and may reflect different 

contemporaneous drainage patterns on opposite sides of the 

Colon-Cross Structure. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

D 

269 PM: D'AGOSTINO, J.P., AND HANSHAW, P.M., 1970, Malachite- and specularitebearing Triassic sandstone localities near Chantilly, Virginia: U.S. 

Geological Survey Professional Paper 700-C, p. C103-C106. 

SUMMARY: Malachite, azurite, and barit~ occur within carbonaceous layers of 

the red Manassas sandstone near a diabase intrusive. A zone of 

specularite is also noted in a siliceous zone nearer the diabase. 

KEYWORDS: economic geology 

copper 

silver 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax Co., Manassas Quad., 

Herndon Quad. 

MAPS: Geol: [1:90,112] 

DATA: Chern. (type of data): trace elements 
Page 84 

270 P : DALLMEYER, R.D., 1975~ The Palisades Sill: a Jurassic intrusion? 

Evidence from 40Ar/ 9Ar incremental release ages: Geology, v. 3, 

p. 243-245. 

SUMMARY: Ar-Ar dating of both upper and lower chill zones indicates a final 

crystallization age of about 190 m.y. (Jurassic). Such an age 

correlates with the tectonic history and the time-stratigraphic 

units in the Hartford Basin (i.e., Holyoke, Hampden basalts). 

KEYWORDS: geophysics 

radiometric age 

Ar/Ar dating 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): Ar/Ar data 

271 P DALRYMPLE, G.B., GROMME, C.S., AND WHITE, R.W., 1975, Potassium-argon 

age and paleomagnetism of diabase dikes in Liberia: initiation of 

Central Atlantic rifting: Geological Society of America, Bulletin, v. 

86, p. 399-411. 

SUMMARY: Northwest-trending diabase dikes cutting Paleozoic sediments yield 

ages between 173 and 192 m.y. Those cutting the Pre-cambrian 

contain excess 40Ar and give ages as old as 1200 m.y. Both sets 

yield a common pole at 68°N and 242°E. A pre-drift refit of the 

continents indicates an earliest 180 m.y. age for rift inception. 

KEYWORDS: geophysics 

radiometric age 

K/Ar dating 

paleomagnetism 

tectonics 

GEOGRAPHIC AREA: Liberia, Regional 

DATA: Plots: pole positions 
Page 85 

272 p DAMES AND MOORE, INC., 1980, Review of potential host rocks for radioactive waste disposal in the southeast United States Triassic Basin 

subregion: E.I. du Pont de Nemours and Company, Savannah River 

Laboratory, Aiken, South Carolina, 250 p. 

SUMMARY: Review and study of the general geology, structure, seismicity, and 

hydrology of exposed and buried basins in Maryland, North Carolina, 

Virginia, and South Carolina indicate the basins are favorable for 

the containment of radioactive waste by meeting criteria which 

include: tectonic stability, slow ground-water movement, and long 

flow paths to the biosphere. 

KEYWORDS: general geology 

structure 

hydrology 

buried basins 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: sketches 

Mise: diabase dikes; lineaments (Landsat) 

273 A : DANA, E.S., 1874, Trap rocks of the Connecticut Valley: American 

Journal of Science and Arts, 3rd series, v. 8, p. 390-392. 

SUMMARY: The petrographic and mineralogic character of the diabase is 

described. It is noted that water content (4-5%) increases toward 

the eastern basin margin, and the rock becomes amygdaloidal. 

Chemistry of the feldspar and the mineralogy indicate the rock is a .. dolerite .. and not diorite. 

KEYWORDS: mineralogy 

diabase 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

274 p DANA, J.D., 1881, Dolerite (trap) of the Triassic-Jurassic area of 

eastern North America: American Journal of Science, v. 22, p. 230-

233. 

KEYWORDS: basalt 

diabase 

GEOGRAPHIC AREA: Regional 
Page 86 

275 P : DANA, J.D., 1883, The or1g1n of the Jura-Trias of Eastern North 

America: American Journal of Science, 3rd series, v. 25, p. 383-386. 

SUMMARY: The character of the sedimentary rocks is outlined and attributed to 

non-lacustrine fluvial conditions. Local large-scale flooding and 

glaciation account for the occurrence of boulder-sized clasts. An 

artesian boring at New Haven indicates a sediment thickness of 1900 

feet. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Regional 

276 p DANA, J.D., 1891, On Percival•s map of the Jura-Trias trap-belts of 

central Connecticut, with observations on the upturning or mountainmaking disturbance of the formation: American Journal of Science, v. 

42, p. 439-447. 

KEYWORDS: basalt 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

277 p DANA, J.D., 1891, On the four rocks of the New Haven Region, East 

Rock, West Rock, Pine Rock and Mill Rock, in illustration ~f the 

features of non-volcanic igneous ejections, with a guide to walks and 

drives about New Haven: New Haven, Connecticut, Tuttle, Morehouse and 

Taylor, 120 p. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

278 p DANA, J.D., 1891, Some of the features of non-volcanic igneous ejections, as illustrated in the four 11 rocks 11 of the New Haven region, West Rock, Pine Rock, Mill Rock, and East Rock: American Journal of 

Science, v. 42, p. 79-110. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

279 P : DANA, J.D., 1892, Additional observations on the Jura-Trias trap of 

the New Haven region: American Journal of Science, v. 44, p. 165-169. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 87 

280 T DANIELS, C.C., III, 1974, Metamorphism of sheet silicates in response 

to temperature and pressure gradients: Ph.D. Thesis (unpublished}, 

University of North Carolina, 131 p. 

SUMMARY: The contact aurole of a 56-foot thick dolerite (diabase) dike in the 

Deep River (Sanford) basin exhibits progressive chemical and 

mineralogical variations from the unmetamorphosed Triassic 

sedimentary rocks. The aureole is 40-feet thick, divided into three 

distinct mineral zones, an outer montmorilonite zone, a middle 

quartz-feldspar zone, and an inner hematite-saponite zone adjacent 

to the diabase. Chemical data show complex trends, with Fe, K, Hg, 

Mn, Al and Rb decreasing towards the dike, Si increasing, and Ca, 

Na, Cr and Ti constant or varying only slightly. The mineral zones 

are explained in terms of migrating isotherms and reaction fronts. 

KEYWORDS: metamorphism 

hornfels 

mineralogy 

geochemistry 

GEOGRAPHIC AREA: Deep River (Sanford) Basin, North Carolina 

DATA: Chern. (type of data): major and trace element {XRF, atomic absorption 

spectophotometry) Plots: modal analyses, chemistry 

281 PM: DANIELS, D.L., ZIETZ, I., AND POPENOE, P., 1983, Distribution of 

subsurface Lower Mesozoic rocks in the Southeastern United States, as 

interpreted from regional aeromagnetic and gravity maps: U.S. 

Geological Survey Professional Paper 1313-K, 24 p. 

SUMMARY: The South Georgia rift, extending from the Gulf of Mexico to 

Charleston, is delineated and described as are the Riddleville (Ga.) 

and the Dunbarton (S.C.) Basins. Two groups of diabase dikes are 

present - a N-trending group and a NW-trending group to the 

southwest part of the area. Diabase sills are also present. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Georgia, South Carolina~ North Carolina 

MAPS: Geol: regional 

Geophys: (11) aeromagnetic maps [1:1,000,000], depth to basement (2) 
Page 88 

282 p DANIELS, DAVID L., 1980, Geophysical-geological analysis of Fairfax 

County, Virginia: U.S. Geological Survey Open-File Report 80-1165, 64 

p. 

SUMMARY: Gravity, aeromagnetics, ground magnetics, and magnetic susceptibility are used to delineate the Herndon and Centreville diabase 

bodies, diabase dikes, the basin•s eastern border, and a horst of 

pre-Triassic schist surrounded by Triassic rocks. A two-dimensional 

model of the Herndon diabase body is developed. Resistivity soundings indicate a thickness of 3600 feet for Triassic rocks along the 

western edge of Fairfax County. 

KEYWORDS: geophysics 

magnetism 

gravity 

aeromagnetism 

resistivity 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: magnetic, gravity, resistivity, aeromagnetic 

283 p DANIELS, DAVID L., AND ZIETZ, ISIDORE, 1978, Geologic interpretation 

of aeromagneti/c maps of the Coastal Plain region of South Carolina and 

parts of North Carolina and Georgia: U.S. Geological Survey Open-File 

Report 78-261, 47 p. 

SUMMARY: Buried Triassic basins of the Coastal Plain are identified and their 

locations mapped. A basin at Kinston, N.C., as well as basins in 

S.C. and Georgia, are described. A large N-trending swarm of 

diabase extends from the Santee River near Charleston to Buena 

Vista, Va. Geophysical criteria for basin recognition are 

discussed. Well logs from the three states are included. 

KEYWORDS: buried basins 

geophysics 

GEOGRAPHIC AREA: South Carolina, Georgia, North Carolina 

MAPS: Geol: Kinston Basin, Dunbarton Basin 
Page 89 

284 p DANIELS, PAUL A., JR., AND ONUSCHAK, EMIL, JR., 1974, Geology of the 

Studley, Yellow Tavern, Richmond, and Seven Pines Quadrangles, Virginia: Virginia Division of Mineral Resources, Report of Investigations 38, 75 p. 

SUMMARY: Undifferentiated Triassic sediments are encountered by drilling and 

underlie the Cretaceous Patuxent Formation. Triassic rocks do not 

outcrop but are shown on cross sections to occur below 30 to 400 

feet below sealevel (500-600 feet in depth). Core logs are provided. The Triassic sand and clay are described as poorly sorted, 

feldspathic and glauconitic, with rock fragments common. 

KEYWORDS: buried basins 

general geology 

GEOGRAPHIC AREA: Richmond Basins Virginia, Henrico Co., Hanover Co., Seven 

Pines Quad. 

MAPS: Section: cross sections 

Mise: drill hole locations 

285 P : DARTON, N.H., 1883, On the disinte~Jrated sandstone at New Durham, 

N.J.: New York Academy of Science, Transactions, v. 2, p. 117-120. 

SUMMARY: Analysis of fresh and altered arkosic sandstone indicates an 

abundance of Na20 inferred to represent albite. However, it is 

uncertain where the albite was derived, as the granitic rocks that 

supplied the sediments rarely contain albite. 

KEYWORDS: geochemistry 

sediments 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

286 A : DAR~ON, N.H., 1885, On the occurrence of native silver in New Jersey: 

American Journal of Science, 3rd series, v. 30, p. 80-81. 

SUMMARY: Native silver is described from the Schuyler Mine, Hudson County. 

Another occurrence is noted from the Bridgewater Mine, Somerville, 

associated with cuprite. 

KEYWORDS: economic geology 

silver 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 90 

287 p DARTON, N.H., 1889, On the great lava flows and intrusive trap sheets 

of the Newark system in New Jersey: American Journal of Science, 3rd 

series, v. 38, p. 134-139. 

SUMMARY: A brief outline of the diabase and basalt is given in advance of 

USGS Bulletin 67 by the author. Extrusive, as opposed to intrusive, 

sheets are delineated by a set of field criteria. An historical 

review of previous work is given. 

KEYWORDS: general geology 

diabase 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

288 PM: DARTON, N.H., BAYLEY, W.S., SALISBURY, R.D., AND KUMMEL, H.B., 1908, 

Passaic folio: U.S. Geological Survey, Geologic Atlas No. 157, 27 p. 

SUMMARY: (Area covers 74°-74°30 1 , 40°30 1 -41°.) Text discusses the general 

geology and structure of the Watchung basalt, the Palisades diabase, 

and the Triassic sediments (undifferentiated). 

KEYWORDS: general geology 

economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Bergen County, Passaic County, 

Essex County, Union County, Hudson County, Morris County 

MAPS: Geol: [1:125,000] 

DATA: Chern. (type of data): major oxides (Palisades diabase) 

Photos: {4) basalt and Newark s.s. outcrops 
Page 91 

289 PM: DARTON, NELSON HORATIO, 1890, The relations of the traps of the Newark 

system: u.s. Geological Survey Bulletin 67, 82 p. 

SUMMARY: The structural relations of the Watchung, Vernon, Palisades, Union 

Hill, Snake Hills, Arlington, and other trap intrusi ns are 

described. Copper occurrences are noted (Schuyler Mine). Numerous 

sketches and a few photographs are included. This i a comprehen- sive reference on the physical nature of the basalt nd diabase of 

New Jersey. 

KEYWORDS: general geology 

diabase 

basalt 

economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: [1:538,560] 

290 p DAVIDSON, A., AND WYLLIE, P.J., 1965, Zoned magnetite ad platy 

magnetite in Cornwall type ore deposits: Economic Ge logy, v. 60, p. 

766-771. 

SUMMARY: A detailed study of the Mg, Fe, and Al distribution n magnetites 

from various phases of the deposits is presented. T e history of 

the deposits is shown to be more complex than previa sly suggested, 

and continued studies in detailed mineralogic zoning are required. 

The 11 blue 11 and brown magnetites are attributed to le s iron in the 

1 atter. 

KEYWORDS: economic geology 

iron 

petrology 

GEOGRAPHIC AREA: Regional 

DATA: Chern. (type of data): microprobe traverses 

Photos: photomicrographs 
Page 92 

291 p DAVIDSON, A., AND WYLIE, P.J., 1968, Opaque oxide minerals of some 

diabase-granophyre associations in Pennsylvania: Economic Geology, v. 

63, p. 950-960. 

SUMMARY: Petrographic studies and analyses of ilmenite-magnetite-ulvospinel 

indicate an iron leaching of Ti-magnetite leaving skeletal ilmenite 

and Ti-poor magnetite. Such an aqueous fluid stage during 

differentiation may carry iron and escape to an environment where 

precipitation would produce a Cornwall-type deposit. 

KEYWORDS: economic geology 

iron 

diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Mise: (general) location of Cornwall-type deposits 

DATA: Chern. (type of data): microprobe traverses 

Photos: photomicrographs 

Plots: differentiation 

292 A : DAVIES, H.M., 1971, Vein alteration in Triassic diabase in Northern 

Virginia: Virginia Journal of Science, v. 322, p. 120. 

SUMMARY: A prehnite-calcite-quartz vein is bounded by a zone of fibrous 

tremolite. Farther away, chlorite and amphibole occur replacing 

pyroxene (pigeonite) but not augite. A hydrothermal origin for the 

vein alteration is proposed. 

KEYWORDS: petrology 

mineralogy 

diabase 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co., Leesburg 

293 p DAVIS, W.M., 1883, On the relations of the Triassic traps and sandstones of the eastern United States: Museum of Comparative Zoology 

Bulletin, v. 7, p. 249-309. 

KEYWORDS: basalt 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Basin, Massachusetts, 

Newark Basin, New Jersey 
294 p 

Page 93 

DAVIS, W.M., 1887, Mechanical or1g1n of the Triassic monoclinal in the 

Connecticut Valley: American Association for the Advancement of 

Science, Proceedings, v. 35, p. 224-227. 

SUMMARY: It is concluded that development of the monoclinal tilting and 

faulting of the Triassic beds was post-depositional and related to a 

single E-W-directed compressional episode that created N-S-trending 

reverse fault blocks. Such structures are considered to have 

developed contemporaneously with the paralleled structure of the 

underlying and adjacent pre-Triassic rocks. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

295 p DAVIS, W.M., 1889, Topographic development of the Triassic Formation 

of the Connecticut Valley: American Journal of Science, 3rd series, 

v. 37, p. 423-434. 

SUMMARY: The stages of structurally controlled topographic development are 

outlined. Particular attention is given to a comparison with the 

Great Basin and Range of the Western U.S. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

296 p DAVIS, W.M., AND LOPER, S.W., 1890, Two belts of fossiliferous black 

shale in the Triassic Formation of Connecticut: Geological Society of 

America, Bulletin, v. 2, p.415-430. 

SUMMARY: Two offset units of black, fossiliferous shale containing fish and 

plants were determined to be equivalent beds, thus supporting the 

faulted monocline theory of Davis. Species are outlined. The 

structural geology of the area is outlined. 

KEYWORDS: structure 

paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Mise: geologic sketch map of Meriden area 
Page 94 

297 P : DAVIS, WILLIAM M., 1896, The quarries in the lava beds at Meriden, 

Connecticut: American Journal of Science, v. 1, 4th series, p. 1-13. 

SUMMARY: The relationships of two basalt flows are described. The lower flow 

is vesicular and purplish-red, especially toward its top, while the 

upper flow is more massive and columnar. Faults within the flows 

are also described. 

KEYWORDS: general geology 

basalt 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven, Meriden 

298 P : DAVIS, WILLIAM M., 1898, The Triassic Formation of Connecticut: U.S. 

Geological Survey Annual Report, 18th, pt. 2, p. 1-192. 

SUMMARY: This extensive treatise covers the sedimentary and igneous rock 

units, faulting and other structures, and the post-depositional 

erosional processes. Numerous photographs and sketches are 

included. Discussions concerning the conditions of deposition and 

the origin of the "trough" are also presented. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: (no scale) Connecticut Triassic with cross sections 

299 p DAVIS, WILLIAM M., AND GRISWOLD, L.S., 1894, Eastern boundary of the 

Connecticut Triassic: Geological Society of America, Bulletin, v. 5, 

p. 515-530. 

SUMMARY: Five eastern border fault segments are recognized chiefly by strata 

discontinuity and termination, as the actual faults are not 

extensively visible in the field. Further evidence for border 

faulting is alteration of the crystalline rock, fault breccias, and 

the geometry of intrabasin faults. Approximate displacements are 

also calculated. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 95 

300 P DAVIS, WILLIAM MORRIS, 1882, Brief notice of observations on the 

Triassic trap rocks of Massachusetts, Connecticut, and New Jersey: 

American Journal of Science, v. 24, 3rd series, p. 345-359. 

SUMMARY: Distinction is made between the extrusive and intrusive igneous rocks as well as the dikes. A compressionary history developing a 

post-depositional faulted monocline is suggested. 

KEYWORDS: diabase 

basalt 

structure 

GEOGRAPHIC AREA: Regional 

301 P DAVIS, WILLIAM MORRIS, 1882, The structural value of the trap ridges 

of the Connecticut Valley: Boston Society of Natural History, Proceedings, v. 22, p. 116-124. 

SUMMARY: The author summarizes previous explanations for the monoclinal 

tilting of the red beds (i.e., oblique deposition, and anticlinal 

arching followed by erosion) and shows that these are unlikely possibilities. It is suggested that conformable trap extrusives 

must play a significant role in deciphering the structural history of the sediments they intrude. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Regional 

302 P DAVIS, WILLIAM MORRIS, 1886, The structure of the Triassic Formation 

of the Connecticut Valley: Amer-ican Journal of Science, v. 32, 3rd 

series, p. 342-352. 

SUMMARY: This discussion is a briefer version of the author's 1888 work and 

presents the nature of structure within the basalt flows of the 

Hartford Basin. A compressional history paralleling the Appa- lachians is suggested. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 96 

303 PM: DAVIS, WILLIAM MORRIS, 1888, The structure of the Triassic Formation 

of the Connecticut Valley: u.s. Geological Survey Annual Report, 7th, 

p. 455-490. 

SUMMARY: A structural review of the Hartford Basin is given. Origin of the 

faulted monoclinal trough is attributed to forces of compression 

perpendicular to the valley strike. Faulting followed pre-existing 

fabric in the crystalline basement. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: [1:503,000] 

304 p DAVIS, WILLIAM MORRIS, 1889, The ash bed at Meriden and its structural 

relations: Meriden Scientific Association, Transactions, Meriden, 

Connecticut, v. 3, p. 23-30. 

SUMMARY: This is a descriptive account of the features of Lamentation 

Mountain and the history of geologic events constituting its basalt 

flows. The ash bed, composed of various sized basalt blocks, is 

associated with the anterior flow and is traced in this same 

position to Chauncy Peak and Higby Mountain. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven, Meriden 

305 p DAVIS, WILLIAM MORRIS, 1889, The faults in the Triassic Formation near 

Meriden, Connecticut: Museum of Comparative Zoology, Bulletin, 

Harvard College, v. 16, no. 4, p. 61-87. 

SUMMARY: This is a descriptive guide to the structural features associated 

with Lamentation, Higby, and Short Mountains in the Meriden-New 

Britain area. Major faults occurring within the trap sheets are 

difficult to trace into the sediments but reveal a regional 

narrow-block structure striking oblique to bedding, considered to 

have developed upon pre-existing pre-Triassic foliation grain. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: sketches 
Page 97 

306 F DAVIS, WILLIAM MORRIS, AND WHITTLE, CHARLES LIVY, 1889, The intrusive 

and extrusive Triassic trap sheets of the Connecticut Valley: Museum 

of Comparative Zoology, Bulletin, Harvard College, v. 16, no. 6, p. 

100-138. 

SUMMARY: The distinguishing features of the extrusive and intrusive sheets 

are outlined and descriptions of all igneous rocks within the 

Hartford Basin {Conn.) are given. Eastern sheets are extrusive and, 

with one exception {Hartford), all belong to one of three flows. 

Western sheets are intrusive. 

KEYWORDS: general geology 

basalt 

diabase 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: sketches 

307 p 

Mise: field observation localities; hand sample sketches 

DE BOER, JELLE, 1967, Paleomagnetic-tectonic study of Mesozoic dike 

swarms in the Appalachians: Journal of Geophysical Research, v. 72, 

no. 8, p. 2237-2250. 

SUMMARY: The diabase dike swarms appear to be Jurassic in age, and their fan 

shape developed during a period of deep-seated sinistral polarity 

shear movements. 

KEYWORDS: geophysics 

paleomagnetism 

tectonics 

structure 

GEOGRAPHIC AREA: Regional 

MAPS: Mise: dike distributions and geometry 

DATA: Plots: pole positions 
Page 98 

308 F DE BOER, JELLE, 1968, Late Triassic volcanism in the Connecticut 

Valley and related structure: in, Orville, P.M., ed., Guidebook for 

Fieldtrips in Connecticut, New !ng\and Intercollegiate Geological 

Conference, Meeting, Trip C-5, 12 p. 

SUMMARY: The intrusive and extrusive rocks are discussed. The volcanic 

events are correlated and distinguished by paleomagnetics as (from 

oldest): Talcott, Holyokoe, Hampden, and Higganum. Iron and boron 

appear to increase with time. The extensive dikes present in all 

the basins are of Higganum age. Field stops are in southern 

Connecticut. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven, Middlesex, Mount 

Carmel-Durham-Meriden 

309 p DE BOER, JELLE, 1968, Paleomagnetic differentiation and correlation of 

the Late Triassic volcanic rocks in the Central Appalachians (with 

special reference to the Connecticut Valley): Geological Society of 

America, Bulletin, v. 79, p. 609-626. 

SUMMARY: Four volcanic events are paleomagnetically differentiated - from 

oldest: Talcott, Holyoke, Hampden, and Higganum •. Rapid pole 

movement during this period results in inclination of 12° for 

Talcott to 35° for Higganum. Gettysburg Basin and Nova Scotia 

intrusives correlate with the Holyoke and Hampden respectively 

indicating a northeasterly rift migration with time. The 

accelerated Triassic polar shift is discussed. 

KEYWORDS: geophysics 

paleomagnetism 

basalt 

GEOGRAPHIC AREA: Regional 

MAPS: Geo 1 : Conn. and Mass. (sketch) 

DATA: Plots: pole positions 
Page 99 

310 A DE BOER, JELLE, 1968, Paleomagnetic-tectonic study of the Mesozoic 

dikes in the Appalachians: Geological Society of America, Special 

Paper 101, p. 249. 

SUMMARY: The Appalachian diabase dike swarms are attributed to a Jurassic to . Cretaceous "White Mountains tectonic phase" resulting in a fanshaped arrangement rotating northeastward from south to north. The 

dikes are surface expressions of deep-seated stress releases 

associated with sinistral shear. 

KEYWORDS: tectonics 

structure 

diabase 

GEOGRAPHIC AREA: Regional 

311 A : DE BOER, JELLE, 1971, The Triassic magnetic field: Pennsylvania Academy of Science, v. 45, p. 201. 

SUMMARY: A review of paleomagnetic results is given including a late Triassic 

rapid pole migration of 25 cm/yr, a northeasterly trend of igneous activity with time, a post-depostional magnetic acquisition for the 

red beds, and a thermal and structural embryonic stage of rifting as 

early as the Carboniferous. 

KEYWORDS: geophysics 

paleomagnetism 

tectonics 

GEOGRAPHIC AREA: Regional 

312 A DE BOER, JELLE, 1983, Magnetic and paleomagnetic evidence bearing on 

hotspot models for Mesozoic magmatism: Geological Society of America, 

Abstracts with Programs, v. 15, p. 91. 

SUMMARY: A Magsat magnetic low that parallels the rift basins is best 

developed in northern Georgia in the region of the postulated RRR 

triple junction, but south of the proposed Carolina hotspot. Two 

hotspot traces, cha racte ri ied by "residua 1" 1 ows, are from southern 

Georgia to Bermuda and SE from the Adirondacks to the Mesozoic White 

Mtns. In both regions, magmatism occurred earliest at the hot spot 

centers and progressed NE. 

KEYWORDS: geophysics 

paleomagnetism 

tectonics 

GEOGRAPHIC AREA: Regional 
Page 100 

313 A DE BOER, JELLE, 1983, Structural control of Mesozoic magmatism in the 

Appalachians: Geological Society of America, Abstracts with.Programs, 

v. 15, no. 6, p. 554. 

SUMMARY: Stresses which governed magmatic pathways alternated between NW and 

SW. Volcanism is associated with SW stresses. Dike-sillswarms 

which fed flows occurred along longitudinal faults, while narrow 

dikes and linear provinces (White Mountains) occurred along cross 

(transform) faults. A strong strike-slip component to dip-slip 

movement is suggested for the rift basins. 

KEYWORDS: diabase 

tectonics 

GEOGRAPHIC AREA: Regional 

314 P DE BOER, JELLE, AND SNIDER, FREDERIC G., 1979, Magnetic and chemical 

variations of Mesozoic diabase dikes from Eastern North America: 

evidence for a hotspot in the Carolinas?: Geological Society of 

America, Bulletin, v. 90, p. 185-198. 

SUMMARY: A Carolina 11 hot spot 11 is suggested by higher aeromagnetic anomalies, 

higher total iron, lower Ti02, by older dikes (than to the NE and 

SW) in the Carolinas, and by an early olivine-normative stage. Evolution of the hot spot and a magmatic history from the Early 

Triassic to Late Jurassic are outlined. 

KEYWORDS: geophysics 

aeromagnetism 

paleomagnetism 

GEOGRAPHIC AREA: Regional 

DATA: Chern. (type of data): Ti02, Fe203, telechemistry 

Plots: pole positions, TRM geographic trends 

315 A DENINGER, R.W., DALLMEYER, R.D., AND NEATHERY, T.L., 1975, Chemical 

variations and K-Ar ages of diabase dikes in East-Central Alabama: 

Geological Society of America, Abstracts with Programs, v. 7, p. 482. 

SUMMARY: Two diabase types (Auburn, Salem) are found in Alabama and 

correspond to the low Ti02-qtz. norm and olivine norm groups (respectively) of Weigand and Ragland (1970). The Auburn dikes are 

also younger (164 m.y.) than the Salem group (189 m.y.). 

KEYWORDS: geochemistry 

diabase 

geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Alabama 
Page 101 

316 F : DENNIS, J.V., 1968, The limestone conglomerate formations of Maryland 

and Northern Virginia: Atlantic Naturalist, v. 23, p. 14-18. 

SUMMARY: A brief discription is given of the nature of the limestone 

conglomerate (along the western border fault) and its associated 

vegetation. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia and Maryland 

317 p DENNISON, JOHN M., AND WHEELER, WALTER H., 1975, Stratigraphy of Precambrian through Cretaceous strata of probable fluvial origin in 

Southeastern United States and their potential as uranium host rocks: 

Southeastern Geology, Special Publication No. 5, 211 p. 

SUMMARY: A review of the general geology and depositional environments of the 

Newark Group indicates that it has 11 high potential .. for uranium 

mineralization. Criteria for uranium mineralization are outlined 

and include the presence of fluvial, arkosic sandstones, carbonaceous and pyritic material, granitic source rocks, and structural 

controls. 

KEYWORDS: economic geology 

uranium 

GEOGRAPHIC AREA: Regional 

318 A DICKENSON, M.P., AND HERMES, O.D., 1979, REE distributions in premetamorphic and post-metamorphic diabase dikes from Southeast New 

England: Geological Society of America, Abstracts with Programs, v. 

11, p. 10. 

SUMMARY: Both Mesozoic and pre-Mesozoic (meta-) diabase dikes from R.I. and 

SE Mass. exhibit similar REE distributions with light REE enrichment 

and positive Eu anomalies suggesting similar petrogenetic histories. 

The dikes are alkali olivine basalts in composition but display REE 

patterns unlike other Eastern U.S. dolerites; this may be attributed 

to different basement terranes. 

KEYWORDS: geochemistry 

diabase 

GEOGRAPHIC AREA: New England (outside of basin area) 
Page 102 

319 p DIETRICH, R.U., 1955, Additions to Virginia mineral localities: 

Virginia Polytechnical Institute Bulletin, Engineering Experiment 

Station, Series 105, 30 p. 

SUMMARY: One significant Triassic occurrence is noted: native silver and 

greenockite with prehnite in a diabase quarry near U.S. Rt. 29 and 

211 west of Centreville. 

KEYWORDS: economic geology 

silver 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax County 

320 P : DIGMAN, RALPH, 1950, An exposure of the Triassic eastern border fault 

in Connecticut: American Journal of Science, v. 248, p. 37-45. 

SUMMARY: An exposure of the eastern border fault is revealed one-half mile 

north of Quonnipaug. Triassic basalt is in normal fault contact 

with Bolton schist, and a 3-foot gouge zone is present. The fault 

strikes N 5°E and dips 55°NW. A photo is provided. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven 

321 p DILLON, W.P., KLITGORD, K.D., AND PAULL, C.K., 1983, Mesozoic 

development and structure of the continental margin off South 

Carolina: U.S. Geological Survey Professional Paper 1313-N, 16 p. 

SUMMARY: The nature of the subsurface, off-shore coastal basement is 

described as consisting of Triassic and Lower Jurassic sediments 

with a basaltic flow cover erupted about 175 m.y. during a spreading 

center reorganization. Seismic profiles and depth to Jurassic rocks 

are presented. 

KEYWORDS: buried basins 

geophysics 

faults 

GEOGRAPHIC AREA: South Carolina (Coast) 
Page 103 

322 p DILLON, WILLIAM P., AND OTHERS, 1979, Structure and development of the 

southeast Georgia embayment and northern Blake Plateau: preliminary 

analysis: in, Watkins, J.S., and others, eds., Geological and Geophysical Investigations of Continental Margins, American Association 

of Petroleum Geologists, Memoir 29, p. 27-41. 

SUMMARY: Seismic reflection profiles indicate that Triassic and Jurassic 

sediments and volcanics occur within grabens. below the Cretaceous 

and Cenozoic shelf sediments. The volcanic episode may have been 

triggered by a "spreading center jump" 175 m.y. ago. 

KEYWORDS: buried basins 

geophysics 

seismic profiles 

GEOGRAPHIC AREA: S.E. Continental Margin 

MAPS: Geophys: seismic profiles 

323 p D1 INVILLIERS, E.V., 1883, The geology of the South Mountain belt of 

Berks County: Pennsylvania Geological Survey {2nd), Report ODD, 441 

p. 

SUMMARY: Descriptions of the general geology of the Triassic area are given 

and include structural information and the occurrence of diabase and 

conglomerate. Several Cornwall-type magnetite deposits, including 

the Wheatfield and Fritz Island Mines, are described briefly and 

considered sedimentary in origin. 

KEYWORDS: general geology 

economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania, Berks County, 

Morgantown, Reading, Boyertown, Sinking Spring, Birdsboro, 

Mechanicsburg, and Lemoyne Quads. 

DATA: Chern. {type of data): diabase {major), ore {major) 

Photos: outcrop 

324 P D1 INVILLIERS, E.V., 1887, Report on the iron ore mines and limestone 

quarries of the Cumberland-Lebanon Valley: Pennsylvania Geological 

Survey, Annual Report for 1886, pt. IV, p. 1411-1518. 

SUMMARY: Cornwall-type iron ore deposits are included in this description of 

the ore workings and ore chemistry from the Dillsburg, Cornwall and 

Hummelstown deposits in Pennsylvania. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 
Page 104 

325 T DITTMAR, EDWARD I., 1979, Environmental interpretation of paleocurrents in the Triassic Durham Basin: M.S. Thesis, University of North 

Carolina. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

326 T DOMBROSKI, DANIEL R., JR., 1980, A geological and geophysical investigation of concealed contacts near an abandoned barite mine, Hopewell, 

New Jersey: M.S. Thesis, Rutgers University, N.J., 33 p. 

KEYWORDS: economic geology 

barite 

general geology 

diabase 

geophysics 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Mercer County 

327 T : DONALDSON, A.C., 1949, Sedimentation in the Holyoke Range: Thesis 

(type unknown), Amherst College. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

328 T : DOOLEY, R.E., 1977, K-Ar relationships in dolerite dikes of Georgia: 

M.S. Thesis, Georgia Institute of Technology, 185 p. 

KEYWORDS: geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Georgia (not in Triassic basin) 
Page 105 

329 P DOOLEY, ROBERT E., AND SMITH, WILLIAM A., 1982, Age and magnetism of 

diabase dikes and tilting of the Piedmont: Tectonophysics, v. 90, p. 

283-307. 

SUMMARY: A paleopole position of 86.1°E and 66.4°N is acquired from 50 dikes 

in Georgia, South Carolina, and North Carolina. A 10° westerly tilt 

of the Appalachians due to a domal effect accounts for the deviation 

from the accepted 190 m.y. pole of E. Irving (1982). 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: North Carolina and South Carolina 

DATA: Plots: pole paths and positions 

330 A DOOLEY, ROBERT E., AND WAMPLER, J.M., 1977, K-Ar relationships in 

dolerite dikes of Georgia: Geological Society of America, Abstracts 

with Programs, v. 9, p. 134. 

SUMMARY: K-Ar studies indicate three age groups of dikes that do not 

apparently correspond with composition: 186-190 m.y., 200-210 m.y., 

and 220-228 m.y. An excess radiogenic argon problem in some samples 

is suggested. 

KEYWORDS: geophysics 

radiometric age 

K/Ar dating 

diabase 

GEOGRAPHIC AREA: Georgia 

331 p DOOLEY, ROBERT E., AND WAMPLER, J.M., 1983, Potassium-argon relations 

in diabase dikes of Georgia - the influence of excess 40Ar on the 

geochronology of Early Mesozoic igneous and tectonic events: U.S. 

Geological Survey Professional Paper 1313-M, 24 p. 

SUMMARY: Excess 40Ar in Georgia dikes results in discordant and variable 

ages (190-1628 m.y.) with greater excess (1.6 nmol/g) in the north. 

Such an excess is attributed to a thicker crust through which the 

magma ascended and is inherent to the magma. 

KEYWORDS: geophysics 

radiometric age 

K/Ar dating diabase 

GEOGRAPHIC AREA: Georgia 

MAPS: Mise: distribution of diabase dikes (Georgia) [1:2,564,102] 

DATA: Plots: K-Ar and Ar vs. heat duration 
332 A 

Page 106 

DORSEY, GEORGE EDWIN, 1919, Stratigraphy and structure of the Newark 

system in Maryland and its relation to the Newark system of Eastern 

North America: Geological Society of America, Bulletin, v. 30, p. 

155-157. 

SUMMARY: Three areas of Triassic rocks are outlined. Mudcracks, tracks, 

wood, and cross-bedding point to continental conditions during 

sedimentation. The rock units are considered as time-equivalent facies changes. The structure is a faulted monocline to the west 

developed in two stages - an early western margin normal faulting 

and a later parallel-to-strike faulting within the basin through which dikes intruded. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Culpeper Basin, Maryland 

333 P : DOSTAL, J., AND DUPUY, C., 1984, Geochemistry of the North Mountain 

basalts {Nova Scotia, Canada): Chemical Geology, v. 45, p. 245-261. 

SUMMARY: Most of the North Mountain basalts are similar to the Mesozoic 

high-Ti quartz-normative tholeiites of Weigand and Ragland {1970). 

Fractional crystallization is dominated by pyroxene and plagioclase 

separation. It is suggested that these continental tholeiites were 

derived from an upper mantle source similar to that for oceanic 

tholeiites, but were affected by crustal contamination. 

KEYWORDS: basalt 

geochemistry 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

DATA: Chern. (type of data): 8 basalt analyses, major and trace elements 

334 T DOWDALL, W.L., 1979, Stratigraphy, depositional environments, and 

petrology of the New Haven arkose, Newark Supergroup, southern and 

central Connecticut: M.S. Thesis, University of Massachusetts, 184 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 107 

335M DRAKE, A.A., JR., MCLAUGHLIN, D.B., AND DAVIS, R.E., 1961, Geology of 

the Frenchtown Quadrangle, New Jersey-Pennsylvania: U.S. Geological 

Survey, Geologic Quadrangle Map GQ-133. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey, Hunterdon Co. 

(N.J.), Bucks Co. (Pa.), Frenchtown Quad. 

MAPS: Geol: [1:24,000] 

336M DRAKE, A.A., JR., MCLAUGHLIN, D.B., AND DAVIS, R.E., 1967, Geologic 

map of the Riegelsville Quadrangle, Pennsylvania-New Jersey: U.S. 

Geological Survey, Geologic Quadrangle Map GQ-593. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey, Bucks Co. (Pa.), 

Hunterdon Co. (N.J.), Riegelsville Quad. 

MAPS: Geol: [1:24,000] 

337M DRAKE, AVERY A., JR., AND FROELICH, A.J., 1977, Preliminary bedrock 

map of Fairfax County, Virginia: U.S. Geological Survey Open-File 

Report 77-523. 

KEYWORDS: general geology 

bedrock geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: [1:48,000] 

338M DRAKE, AVERY A., JR., AND OTHERS, 1979, Preliminary geologic map of 

Fairfax County, Virginia (sheet 1) and map showing selected geologic 

data (sheet 2): U.S. Geological Survey Open-File Report 79-398. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: [1:48,000] 
Page 108 

339 P : DRAKE, HARRY Y., 1943, The quarry at Upper Montclair, New Jersey: 

Rocks and Minerals, v. 18, p. 332-333. 

SUMMARY: The zeolite minerals from this quarry in the First Watchung Mountain 

are described briefly. 

KEYWORDS: mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Essex Co. 

340 A DREZ, PAUL E., 1977, Deuteric alteration in Mesozoic didabase dikes 

from Central North Carolina: Geological Society of America, Abstracts 

with Programs, v. 9, p. 134. 

SUMMARY: An olivine-normative diabase dike 30 km SW of Raleigh was studied. 

Vesicles of carbonate and sulfide indicate a magmatic vapor phase. 

Sr isotopic ratios are (.704-.705). Al, Mg, Ca, Si, Mn, Ba, Li were 

mobile, while Na, Fe, Ti, Zr, and Y were immobile during deuteric 

alteration. Mineral reactions are noted. 

KEYWORDS: mineralogy 

petrology 

diabase 

GEOGRAPHIC AREA: North Carolina 

341 p DRIBUS, JOHN R., 1978, Preliminary study of the uranium potential of 

the Dan River Triassic Basin system, North Caroilna and Virginia: 

U.S. Department of Energy, Grand Junction Operations, GJBX-131(78), 26 

p. 

SUMMARY: Scintillometer and chemical studies indicate that uranium mineralization may occur along the unconformable basin contact with the 

pre-Triassic, along the contact between the bleached hornfels zones 

and the unaltered sediments, and within stratigraphic traps created 

by intertonguing of black shales and red sandstones. 

KEYWORDS: economic geology 

uranium 

GEOGRAPHIC AREA: Dan River-Danville Basin, Davie County Basin, North 

Carolina, Virginia 

MAPS: Geol: sketches 

Geophys: scintillometer surveys 

Mise: sample locations; diabase dikes 

DATA: Chern. (type of data): sedimentary rock (K, U, Th, Mo, Se, Pb, Ba, Co, 

Cr, V) 

Plots: sedimentary rock mineralogy 
Page 109 

342 P : DUBOIS, P.M., AND OTHERS, 1957, The geomagnetic field in Upper 

Triassic times in the United States: Nature, v. 180, p. 1186-1187. 

SUMMARY: Paleomagnetic data from red beds in Utah, the Holyoke lava and its 

associated red-beds in Massachusetts, and the Brunswick Formation of 

New Jersey indicate that paleomagnetic pole positions on the North 

American continent are approximately equivalent and differ from 

similar age rocks in England. The arguments support the continental 

drift theory. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Regional 

DATA: Plots: pole positions 

343 A DUHLING, W.H., JR., 1955, A report on the mineralogy of the Triassic 

Durham basin in northern Wake County, North Carolina: Elisha Mitchell 

Scientific Society, Journal, v. 71, no. 2, p. 176-177. 

SUMMARY: A stream sediment survey (?) reveals the presence of 24 minerals, of 

which ilmenite, epidote, and kyanite are ubiquitous in the 2.965 to 

4.0 specific gravity range. Other minerals include: hematite, 

pyrite, tremolite-actinolite, hypersthene-enstatite, zircon, sillimanite, garnet, and diopside - in decreasing order of abundance. 

KEYWORDS: mineralogy 

GEOGRAPHIC AREA: Durham Basin, North Carolina, Wake County 

344 T DUNLEAVY, J.M., 1975, A geophysical investigation of the contact along 

the northern margin of the Newark Triassic Basin, Hosensack, Pennsylvania to Gladstone, New Jersey: M.S. Thesis, Lehigh University, 68 

p. 

KEYWORDS: structure 

geophysics 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 
345 p 

Page 110 

DUPUY, C., AND DOSTAL, J., 1984, Trace element geochemistry of some 

continental tholeiites: Earth and Planetary Science Letters, v. 67, 

p. 61-69. 

SUMMARY: Such tholeiites (including those of Nova Scotia and Morocco: 

Mesozoic) differ from mid-ocean ridge tholeiites by higher K, Rb, 

Ba, Th, and lighter rare earth elements with negative Nb anomalies. 

Such differences are attributed to interaction with continental 

crust. 

KEYWORDS: geochemistry 

petrology 

GEOGRAPHIC AREA: Regional 

DATA: Plots: variations: P205, Ti02, La vs. Mg; REE vs. chondrite 

346 F DYSON, JAMES L., AND OTHERS, 1953, Guidebook: Field Conference of 

Pennsylvania Geologists, Nineteenth Annual Meeting, Department of 

Geology and Geography, LaFayette College, Easton, Pa., p. 54-65. 

SUMMARY: Field trip stops along the Delaware River in northern Bucks County, 

Pa., and Hunterdon County, N.J., include the northern border fault, 

the Brunswick shale, hornfelsed Brunswick shale at Ringing Rocks, 

the Lockatong Formation, and fanglomerate. A road log and outcrop 

descriptions are included. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey, Bucks County {Pa.), 

Hunterdon County {N.J.) 
347 p 

Page 111 

E 

EARL, KENNETH M., 1950, Investigation of New Galena lead deposit, 

Bucks County, Pennsylvania: U.S. Bureau of Mines, Report of Investigations 4703, 7 p. 

SUMMARY: The old prospects are several miles NW of Doylestown at Neshaminy 

Creek. Quartz, ankerite, calcite, galena, sphalerite, pyrite, 

chalcopyrite, and bornite occur within brecciated seams in black and 

gray shale in proximity to diabase. Ore dips to the southeast. 

Two drill core descriptions are presented, but no ore was intersected. Mining history is outlined. 

KEYWORDS: economic geology 

lead 

zinc 

copper 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co., Doylestown Quad. 

MAPS: Mise: sketch (pits and drill holes) 

348 p EARL, KENNETH M., 1950, Investigation of Perkiomen Creek copper 

deposits, Montgomery County, Pennsylvania: U.S. Bureau of Mines, 

Report of Investigations 4666, 13 p. 

SUMMARY: A vein zone 2- to 19-feet thick occurs within red shale (Stockton 

Fm.) 5 miles east of Phoenixville and consists of chalcopyrite, 

galena, sphalerite, quartz, and barite. The vein strikes N 40°E and 

dips 75°SE. Four drill cores (logged) intersected the vein. Shale 

immediately adjacent to the vein is "bleached" and fragments of 

country rock within the vein are common. Mining history and workings are described. 

KEYWORDS: economic geology 

copper 

1 ead 

zinc 

barite 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery County, Collegeville 

Quad. 

MAPS: Section: mine cross section 

Mise: drill hole locations; sketch of mine location 
Page 112 

349 P : EASTMAN, CHARLES ROCHESTER, 1911, Triassic fishes of Connecticut: 

Connecticut Geological and Natural History Survey, Bulletin 18, 78 p. 

SUMMARY: A review of Triassic fish fauna from the area is presented with 

numerous sketches and photos. Species are described in detail and a 

brief discussion of previous work and correlation is presented. 

KEYWORDS: paleontology 

stratigraphy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

350 p EATON, AMOS, 1818, Account of the strata perforated by, and of the 

minerals found in, the Great Adit to the Southampton Lead Mine: 

American Journal of Science, First Series, v. 1, p. 136-139. 

SUMMARY: This is a descriptive account of the rocks constituting the adit to 

the mine. Granite, serpentine, slate, and coal occur, and ore 

minerals include galena, fluorite, chalcopyrite, and barite within 

veins in these rocks. Observations were made to the 800-foot level. 

KEYWORDS: economic geology 

lead 

zinc 

barite 

copper 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampshire Co. 

351 p EATON, GORDON P., ~ND ROSENFELD, JOHN L., 1960, Gravimetric and 

structural investigations in Central Connecticut: International 

Geological Congress, 21st Session, Norden, Part II, p. 168-178. 

SUMMARY: The formation of the Triassic trough coincided with pre-Mesozoic 

structural foliation and zones of weakness in the gneiss domes 

flanking the east and west sides. Later deformation forming joints 

that transect all provinces indicate that this event was of regional 

extent with the area responding as a unit. 

KEYWORDS: structure 

geophysics 

gravity 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: Central Connecticut 

Section: Triassic strat. column. 

Geophys: gravity profiles 
Page 113 

352 P : EDMUNDSON, R.S., 1938, Barite deposits of Virginia: Virginia Division 

of Mineral Resources, Bulletin 53, 85 p. 

SUMMARY: Five small barite deposits within the Triassic of Fauquier County 

are described. Four occur in the Bull Run shale as barite-rich 

brecciated fractures associated with quartz and calcite. One occurs 

along a weathered diabase dike. A magmatic, deep-seated origin for 

the fluids is proposed; and other barite deposits not within 

Triassic rocks may have formed as a result of Triassic magmatism. 

Silicification of adjacent Bull Run shale is present. 

KEYWORDS: economic geology 

barite 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fauquier County 

MAPS: Mise: (bar scale only) mine locations 

DATA: Photos: photomicrographs 

353 P : EDWARDS, JONATHAN, JR., 1970, Deep wells of Maryland: Maryland Geological Survey, Basic Data Report No. 5, 161 p. 

SUMMARY: Abbreviated well logs and well locations are presented in table 

form. Those that intersected Triassic rocks at depth or at the 

surface include: Union Bridge (0-950 feet); Frederick (0-? feet/ 

Frederick limestone); Brandywine, Prince Georges Co. (1491-? feet); 

Piscataway (1490-? feet); Upper Marlboro (2) (1617-1665 feet and 

1720-1750 feet); Ninepin (6570-7130 feet). 

KEYWORDS: general geology buried basins 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland, Maryland 

354M : EGGLETON, R.E., 1975, Preliminary geologic map of the Herndon Quad.: 

U.S. Geological Survey Open-File Report 75-386. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax Co., Loudoun Co. 

MAPS: Geol: [1:24,000] 
Page 114 

355 T EHRENFELD, F., 1898, A study of the igneous rocks at York Haven and 

Stony Brook, Pennsylvania, and their accompanying formations: Thesis 

(type unknown), University of Pennsylvania, 24 p. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

356 A ELLEFSEN, KARL J., AND RYDEL, PAULL., 1983, Flow direction of the 

Hampden basalt in the Hartford Basin: Geological Society of America, 

Abstracts with Programs, v. 15, p. 122. 

SUMMARY: Study of pipe vesicles indicates flow direction of the Hampden 

basalt was from the SW and possibly emanated from the Newark Basin's 

Third Watchung basalt, which is chemically similar. Imbrication and 

orientation of plagioclase phenocrysts confirms this northeastward 

flow direction. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts 

357 T : ELLEN, S.D., 1964, A gravity survey of the northern Connecticut Valley 

Triassic Basin: Senior Thesis, Amherst College, 68 p. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

358 F ELLISON, R.L., AND OTHERS, 1971, Triassic basin -Culpeper: Field 

Trip Atlas, Virginia Field Conference, University of Virginia, 

Charlottesville, Virginia, 2 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
Page 115 

359 p ELLS, R.W., 1904, Bulletin on the ores of copper in the provinces of 

Nova Scotia, New Brunswick and Quebec, Canada: Canadian Geological 

Survey, Mineral Resources, 58 p. 

SUMMARY: Small, but abundant, masses of native copper, ranging from tiny 

grains to bodies several pounds in weight, are found in amygdaloidal 

Mesozoic basalt in the Bay of Fundy area, Nova Scotia. The copper 

occurs with quartz, calcite, and zeolites in veins which cut basalt 

flows. 

KEYWORDS: basalt 

mineralogy 

economic geology 

copper 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia 

360 T EL TAHIR, O.I., 1980, Geophysical investigation of diabase dikes in 

the Durham Triassic Basin and their hydrological significance: M.S. 

Thesis, North Carolina State University. 

KEYWORDS: geophysics 

hydrology 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

361 p EMERSON, B.K., 1882, The Deerfield dyke and its minerals: American 

Journal of Science, Third Series, v. 24, p. 195-202, 270-278, 349-

360. 

SUMMARY: The detailed mineralogy of the dike, which is best observed at 

Turner's Falls at the mouth of Fall River, is outlined with the 

following minerals discussed: diabantite, albite, prehnite, 

calcite, epidote, chalcopyrite, sphalerite, datolite, fluorite, 

natrolite, and other zeolites. The series of articles concludes 

with an overall paragenesis. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
Page 116 

362 P : EMERSON, B.K., 1891, On the Triassic of Massachusetts: Geological Society of America, Bulletin, v. 2, p. 451-456. 

SUMMARY: The rocks of the Triassic are distinguished into 6 formations: the 

Sugarloaf arkose, Mount Toby conglomerate, Longmeadow sandstone, 

Chicopee shale, Granby tuff, and Holyoke and Deerfield basalt 

sheets. Deposition of all sediments is considered synchronous and 

related to a central mudflat bordered by fast currents depositing 

coarser material. 

KEYWORDS: general geology 

stratigraphy 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geol: general (Massachusetts Triassic area) 

363 p EMERSON, B.K., 1892, Proofs that the Holyoke and Deerfield trap sheets 

are contemporaneous flows and not later intrusions: American Journal 

of Science, v. 43, p. 146-148. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

364 p EMERSON, B.K., 1897, Diabase pitchstone and mud enclosures of the 

Triassic trap of New England: Geological Society of America, 

Bulletin, v. 8, p. 59-86. 

SUMMARY: Field descripti~hs are given of the diabase tuffs and the mudincorporated flow sheets. Mud is incorporated on the surface of the 

advancing lava sheet and also carried to its underside. Little contact metamorphic effects are present. In other cases, water-rich 

muds react more violently with the molten rock resulting in cracked, 

spherulitic glass units and mud volcanoes. 

KEYWORDS: general geology 

basalt 

mineralogy 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

DATA: Photos: photomicrographs; outcrops 
Page 117 

365 PM: EMERSON, B.K., 1898, Holyoke folio: u.s. Geological Survey, Geologic 

Atlas No. 50, 13 p. 

SUMMARY: {Covers area between 73°-72°30' and 42°-42°30'.) Text includes 

descriptions of the Talcott, Holyoke, and Hampden basalts, the Mount 

Toby conglomerate, the Sugarloaf arkose, Longmeadow sandstone, 

Chicopee shale, and Granby tuff. 

KEYWORDS: economic geology 

lead 

zinc 

barite 

general geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampden County, Hampshire 

County, Franklin County 

MAPS: Geol: (4) [1:125,000] 

366 P : EMERSON, B.K., 1902, Holyokeite, a purely feldspathic diabase from the 

Triassic of Massachusetts: Journal of Geology, v. 10, p. 508-512. 

SUMMARY: A white diabase differentiate {holyokeite) is described as occurring 

within sandstone beds just above the trap sheet. It is composed of 

70% albite, 16% calcite, 9% orthoclase, and 1% ilmenite in addition ~o minor pyrite and chalcopyrite. The holyokeite is intermediate 

between diabase and E.O. Hovey's keratophyre dike. 

KEYWORDS: diabase 

petrology 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampden Co. 

DATA: Chern. (no. of data): (3) 

Chern. (type of data): major oxides 

367 P EMERSON, B.K., 1904, Note on a calcite-prehnite cement rock in the 

tuff of the Holyoke Range: American Journal of Science, v. 17, p. 

277-278. 

KEYWORDS: basalt 

zeolites 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
Page 118 

368 p EMERSON, B.K., 1905, Plumose diabase and palagonite from the Holyoke 

trap sheet: Geological Society of America, Bulletin, v. 16, p. 91-

130. 

SUMMARY: A lengthy description of the nature of the Holyoke sheet is given 

including inclusions, explosion breccia, schlieren types, glasses, 

porphyry, spherulites, and holyokeite differentiate. Magmatic 

processes are outlined. 

KEYWORDS: diabase 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geol: Holyoke area, Massachusetts 

DATA: Chern. (no. of data): {13} 

Chern. (type of data): major oxides 

Photos: photomicrographs and hand samples 

369 P EMERSON, B.K., 1916, Description of large cylinders of scoriaceous 

diabase in the normal Holyoke diabase: American Journal of Science, 

v. 41, p. 321-322. 

KEYWORDS: diabase 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

370 p EMERSON, B.K., 1917, Geology of Massachusetts and Rhode Island: u.s. 

Geological Survey Bulletin 597, 289 p. 

SUMMARY: The following is included in the report: descriptions of the 

Sugarloaf arkose, the Mt. Tobj•conglomerate, Longmeadow sandstone, 

Granby tuff, Chicopee shale, the fossil flora and fauna, and the 

petrography and form of the diabase and basalt flows. Coarse basin 

facies are attributed to glacial deposition. 

KEYWORDS: general geology 

stratigraphy 

economic geology 

copper 

lead 

zinc 

paleontology 

mine ra 1 ogy 

diabase 

basalt 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Massachusetts 

MAPS: Geol: [1:250,000] 
371 P : EMERSON, BENJAMIN KENDALL, 1898, Geology of Old Hampshire County, Massachusetts: U.S. Geological Survey Monograph 29, 790 p. 

Page 119 

SUMMARY: Two hundred pages are devoted to discussions of the Triassic 

sedimentary and igneous rocks, the latter includes petrographic 

photos and descriptions of the various types. Artesian well logs 

are presented. The paleontology and structure are also discussed. 

KEYWORDS: general geology stratigraphy 

paleontology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin~ Massachusetts, Hampshire 

Co. 

MAPS: Geol: [1:190,080] 

372 p ENGELEN, G.B., 1963, Indications for large-scale graben formation 

along the continental margin of the Eastern United States: Geologie 

en Mijnbouw, v. 42, no. 3, p. 65-75. 

SUMMARY: Geophysical and topographic data indicate a graben system along the 

Atlantic margin from Puerto Rico to Newfoundland. Rifting progressed southward. Such graben formation surrounding the Atlantic 

indicates a tensional environment in support of a mid-Atlantic rift. 

Graben development is attributed to a complex late Mesozoic 

subsidence. 

KEYWORDS: tectonics 

GEOGRAPHIC AREA: Regional 

MAPS: Section: graben profiles 

373 A ERICKSON, G.P., AND KULP, J.L., 1960, Potassium-argon measurements on 

the Palisades diabase and associated basalts: Journal of Geophysical 

Research, v. 65, no. 8, p. 2487-2488. 

SUMMARY: Compared with biotite, the fine (chilled) and coarse facies 

(Palisades and Watchung basalts) retain 90% of their radiogenic 

argon - the coarser facies somewhat less. The retention is attributed to the amount and alteration of K-feldspar, absent in the fine 

facies and abundant in the coarse facies. Biotite gives a 190 m.y. 

crystallization age for the Palisades diabase. 

KEYWORDS: geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 120 

374 p ERICKSON, G.P., AND KULP, J.L., 1961, Potassium-argon measurements on 

the Palisades Sill, New Jersey: Geological Society of America, 

Bulletin, v. 72, p. 649-652. 

SUMMARY: K-Ar dating is conducted on seven different units within the sill 

(illustrated). _Much attention is given to the technical procedure 

and retentivity. Biotite indicates a 190+5 m.y. age, and wholerock 

values may be as accurate. -

KEYWORDS: geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

375 PM: ERN, ERNEST H., 1968, Geology of the Buckingham Quadrangle, Virginia: 

Virginia Division of Mineral Resources, Report of Investigations 15, 

42 p. 

SUMMARY: The southwest area of the basin is discussed. It is bounded on the 

west and on most of the east by normal faults. Three facies of 

sedimentary rocks, an eastern arkosic sandstone, shale, and siltstone unit, a central fanglomerate unit, and a western green-gray 

shale unit are present. Diabase dikes are also present. 

KEYWORDS: general geology 

CEOGRAPHIC AREA: Scottsville Basin, Virginia, Buckingham Co., Nelson Co., 

Howardsville Quad., Glenmore Quad. 

MAPS: Geol: [1:62,500] 

376 p ESPENSHADE, G.H., 1954, Geology and mineral deposits of the James 

River-Roanoke River manganese district, Virginia: U.S. Geological 

Survey Bulletin 1008, 115 p. 

SUMMARY: An occurrence of minor copper mineralization associated with quartzcalcite veins cutting Triassic shale is described (Dolan property, 

p. 79, 145). 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Virginia, Nelson County 
377 p 

Page 121 

EUGSTER, HANS P., AND CHOU, I-MING, 1979, A model for the deposition 

of Cornwall-type magnetite deposits: Economic Geology, v. 74, p. 

763-774. 

SUMMARY: Ore emplacement occurred at about 500°C. A convecting system of 

aqueous chloride solutions becomes more acidic by the conversion 

of muscovite to K-spar in the country rock. HCl dissolves iron 

minerals in the diabase to yield FeC12, which then precipitates 

magnetite upon contact with the limestone. A detailed chemical discussion is provided. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Regional 

378 p EVANS, I., KENDALL, C.G. ST.C., AND WARME, J.E., 1974, Jurassic 

sedimentation in the high Atlas Mountains of Morocco during early 

rifting of Africa and North America: Geology, v. 2, p. 295-296. 

SUMMARY: Studies in the Ziz Valley indicate a carbonate-dominated sedimentation during the Early Jurassic and an infilling of the rift trough 

by the Middle Jurassic. Syntectonic deformation is evidenced by 

Early Jurassic turbidites and slump blocks. Deformation of the 

trough occurred after the Jurassic. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Morocco 

F 

379 A FAILL, ROGER T., 1971, A tectonic model for the Triassic Basin in 

Pennsylvania: Pennsylvania Academy of Science, Proceedings, v. 45, p. 

198-199. 

SUMMARY: Fault evidence along the southeastern and northwestern basin borders 

is lacking. Only isolated, small-scale (< 3000 feet) displacements 

occur. Aeromagnetics and gravity surveys show no faulting, and 

intrusions are concentrated away from basin edges. A series of 

rotational and extensional events is favored. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 
Page 122 

380 p FAILL, ROGER T., 1973, Tectonic development of the Triassic NewarkGettysburg Basin in Pennsylvania: Geological Society of America, 

Bulletin, v. 84, p. 725-740. 

SUMMARY: The origin of the basin is attributed to simple synformal downwarp 

and not fault-bounded graben development. Evidence is provided by 

structural data (including): lack of syndepositional faulting and 

comparison of gravity data to known grabens. In addition, the 

homogeneity of intrusive composition is cited as evidence. Igneous 

intrusion occurred late and tilting-faulting followed deposition. 

KEYWORDS: structure 

tectonics 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

MAPS: Geol: basin 

381 p 

Mise: paleofacies, structure (domain map) 

FANALE, F.P., AND KULP, J.L., 1962, The helium method and the age of 

the Cornwall, Pennsylvania, magnetite ore: Economic Geology, v. 57, 

p. 745-756. 

SUMMARY: A discussion of the dating technique is presented and involves an 

important leaching process for secondary radioactive ~rain coatings. The remaining lattice helium is then a function of the 

inherent retentivity of the crystal lattice. Cornwall magnetite 

yields ages of about 194 m.y. with pyrite 170 m.y. The magnetite 

values are consistent with known K-Ar dates. 

KEYWORDS: geophysics 

radiometric age 

helium dating 

economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lebanon Co., Lebanon Quad. 

382 A : FANALE, F.P., AND KULP, J.L., 1964, Uranium, thorium-helium dating of 

magnetite: Geological Society of America, Special Paper 76, p. 57. 

SUMMARY: Isotope-dilution measurements on magnetite from Cornwall indicate a 

200 m.y. age. Accuracy in the method depends upon sample leaching, 

which yields higher ages than unleached samples. 

KEYWORDS: geophysics 

radiometric age 

economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lebanon Co., Lebanon Quad. 
383 p 

Page 123 

FARQUHAR, O.C., 1967, Tectonic and nontectonic structures in Triassic 

sedimentary rocks at Holyoke, Massachusetts: in, Farquhar, O.C. 

(ed.), Economic geology in Massachusetts: Amherst, Massachusetts, 

Graduate School, University of Massachusetts, p. 317-336. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

384 p FAUST, GEORGE T., 1975, A review and interpretation of the geologic 

setting of the Watchung basalt flows, New Jersey: U.S. Geological 

Survey Professional Paper 864-A, 42 p. 

SUMMARY: The time-stratigraphic position and relationship of the basalt flo\~S 

to their associated sediments are outlined. Late arching of the 

basin produced tectonic joints in the basalt flows. Feeder dikes 

are hidden by cover. The areal extent of the flows, their 

chemistry, and the regional tectonic framework are discussed. 

KEYWORDS: general geology 

structure 

tectonics 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Section: stratigraphic columns, cross section 

DATA: Chern. (no. of data): (9) 

Chern. (type of data): basalt major oxide and norms 

385 P : FAUST, GEORGE T., 1978, Joint systems in the Watchung basalt flows, 

New Jersey: U.S. Geological Survey Professional Paper 864-B, 46 p. 

SUMMARY: The cooling, tectonic, and weathering joint phenomena are discussed. 

Each flow is composed of (from top) a vesicular, columnar, blocky, 

curvilinear, and basal vesicular zone related to cooling. Tectonic 

joints are superimposed and fo1lowed by later glacial sheeting and 

weathering joint development. Numerous field photos are provided. 

KEYWORDS: basalt 

structure 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: (50) 
Page 124 

386 p FAUST, GEORGE T., 1978, Time relation of the Watchung basalt flows to 

the faulting in the Newark graben: Journal of Research, U.S. 

Geological Survey v. 6, no. 3, p. 391-394. 

SUMMARY: Each of the three basalt flows is underlain by a fanglomerate which· 

is in turn overlain by only a thin shale layer, and this is true for 

Conn. as well. This indicates that extrusion occurred after 

faulting episodes and the border faults did not provide ingress. The nonsimultaneity of faulting and extrusion is suggested. 

KEYWORDS: structure 

basalt 

tectonics 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: sketch of Watchung Mtns. 

387 p FAUST, GEORGE T., AND MURATA, K.J., 1953, Stevensite, redefined as a 

member of the montmorillonite group: American Mineralogist, v. 38, p. 

973-987. 

SUMMARY: This hydrous magnesium silicate occurs as pseudomorphs after 

pectolite in basa.lt at Hoboken, N.J. Its chemistry and physical 

properties are outlined. (Further descriptions of this occurrence 

may be found in: Glenn, M.L., 1916, American Mineralogist, v. 1, p. 

44-46.) 

KEYWORDS: mineralogy 

diabase 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): major oxide 
Page 125 

388 PM: FAUTH, J.L., 1978, Geology and mineral resources of the Iron Springs 

area, Adams and Franklin Counties, Pennsylvania: Pennsylvania 

Geological Survey, Atlas 129C, 72 p. 

SUMMARY: The western edge of the basin, which occupies the eastern edge of 

the quadrangle, is in fault contact with the lower Paleozoic and 

Precambrian Blue Ridge rocks, and consists of shale and sandstone 

of the Gettysburg Fm., diabase, and, unlike observations by Stose 

and Bascom {1929}, does not apparently contain Cambro-Ordovician 

limestone east of the border fault. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Adams County, Iron Springs 

Quad. 

MAPS: Geol: [1:24,000] 

389M : FAUTH, JOHN L., 1977, Geologic map of the Catoctin Furnace and Blue 

Ridge Summit Quadrangles, Maryland: Maryland Geological Survey. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland, Frederick County 

MAPS: Geol: [1:24,000] 

390 p FENNER, CLARENCE N., 1908, Features indicative of physiographic conditions prevailing at the time of the trap extrusions in New Jersey: 

Journal of Geology, v. 16, p. 299-327. 

SUMMARY: Study of the basalt-sedimentary rock relationships indicate depositional conditions of a semi-desert area with an eolian component. A central lake, here named Lake Paterson, was present during basalt 

extrusion as evidenced by an area of secondary minerals and glassy flows. 

KEYWORDS: general geology 

sedimentation 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 126 

391 p FENNER, CLARENCE N., 1910, The Watchung basalt and the paragenesis of 

its zeolites and other secondary minerals: New York Academy of 

Sciences, Annals, v. 20, p. 93-187. 

SUMMARY: This extensive treatise, concerning the occurrence of zeolites and 

other minerals found in the Watchungs, concludes that such mineralrich areas formed above pre-existing lakes. Three stages are 

present: (1) albite, garnet, amphibole, sulfides, datolite, 

prehnite, pectolite; (2) analcite, zeolites, chlorite; (3) calcite, 

gypsum. 

KEYWORDS: basalt 

mineralogy 

petrology 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: photomicrographs 

392 P : FENNER, CLARENCE N., 1914, Babingtonite from Passaic County, New 

Jersey: Washington Academy of Science, Journal, v. 4, p. 552-558. 

SUMMARY: Babingtonite is found in the zeolite cavities in the Watchung basalt 

at the Francisco Quarry at Great Notch. Most often i't is dissolved 

by early alteration leaving casts. The chemical and physical 

properties are outlined. 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Passaic Co. 
Page 127 

393 p FISHER, G.W., 1964, The Triassic rocks of Montgomery County: in, 

The Geology of Howard and Montgomery Counties, Maryland Geological 

Survey, p. 10-17. 

SUMMARY: A sequence of Triassic sediments is described and consists of (from 

base) quartzite and phyllite conglomerate (200ft.); arkosic sandstone, siltstone, and shale (900 to 2000 ft.); and red shales (5000 

ft. in southern area) and sandstones and conglomerates (4000 ft. in 

northern area). The Boyds diabase sill occurs in the NE cnrner of 

the area along the unconformable basin margin and contains hypersthene phenocrysts in a ground mass of augite, plagioclase, and 

hypersthene. Olivine is most abundant along the sill margin. 

Diabase dikes are described. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Maryland 

MAPS: Geol : sketch 

DATA: Chern. (type of data): diabase major oxide 

394 P : FLANIGAN, V.J., 1978, Geophysical investigations in Fairfax County, 

Virginia: U.S. Geological Survey Open-File Report 78-150, 14 p. 

SUMMARY: VLF electromagnetic surveys conducted in the Herndon Quadrangle 

delineate the basin's eastern border and a diabase dike. 

KEYWORDS: geophysics 

magnetism 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: profiles 

Mise: line locations 

395 T FLEISHER, P. JAY, 1963, Structural control of the igneous intrusions 

of the Durham Triassic Basins, North Carolina: M.S. Thesis, University of North Carolina. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Durham Basin, North Carolina 
Page 128 

396 PM: FLINT, RICHARD FOSTER, 1964, The surficial geology of the Branford 

Quadrangle: Connecticut Geological and Natural History Survey, 

Quadrangle Report no. 14, 46 p. 

SUMMARY: The area consists mostly of glacial sediments and recent surficial 

deposits, and a small number of Triassic exposures occur. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven 

MAPS: Geol: surficial [1:24,000] 

397 p 

Mise: surficial geology, outcrop location [1:24,000] 

FLOYD, EDWIN 0., 1965, Geology and ground-water resources of the 

Monroe area, North Carolina: North Carolina Department of Water 

Resources, Division of Ground Water, Ground Water Bulletin 5, 109 p. 

SUMMARY: The rock units of the Triassic are briefly described and include a 

western fanglomerate. Ground water data from 26 wells are presented. Water tends to be hard with high amounts of iron and 

chloride. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Wadesboro Basin, North Carolina, Anson Co., Union Co. 

MAPS: Mise: geologic sketch maps of the two counties showing Triassic 

398 p FLUHR, THOMAS W., 1941, The geology of the Lincoln Tunnel: Rocks and 

Minerals, v. 16, no. 6, p. 115-119, 155-160, 195-198. 

SUMMARY: This series of articles outlines the geology of the tunnel including 

the presence of faults, diabase, and Triassic sediments. Their 

relationship to construction is emphasized. 

KEYWORDS: diabase 

faults 

sediments 

GEOGRAPHIC AREA: Newark Basin, New York, New Jersey 

MAPS: Geol: sketches 
Page 129 

399 P FOLGER, D.W., HATHAWAY, J.C., CHRISTOPHER, R.A., VALENTINE, P.C., AND 

POAG, C.W., 1978, Stratigraphic test well, Nantucket Island, Massachusetts: U.S. Geological Survey Circular 773, 28 p. 

SUMMARY: A 514-m borehole intersected basult at about 450 meters. Chemical 

and petrographic data are presented. Geophysical data and the core 

indicate that an early Mesozoic graben may exist between Nantucket 

and Martha's Vineyard. 

KEYWORDS: buried basins 

geophysics 

basalt 

geochemistry 

GEOGRAPHIC AREA: Massachusetts (offshore) 

MAPS: Geophys: gravity [1:1,574,803] 

400 A FOLGER, D.W., HATHAWAY, J.C., AND POAG, C.W., 1976, Mesozoic 

stratigraphic test, Nantucket Island, Massachusetts: American 

Association of Petroleum Geologists, v. 60, p. 672. 

SUMMARY: The objectives of the test well are outlined without specific 

conclusions with regard to the Mesozoic. (The reader is referred to 

Folger and others, 1978.) 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Massachusetts (offshore) 

401 P FONTAINE, W.M., 1883, Contributions to the knowledge of the older 

Mesozoic flora of Virginia: U.S. Geological Survey, Monograph 6, 144 

p. 

SUMMARY: The plant species from the lower, carbonaceous units of the Virginia 

and North Carolina Basins are described in detail, and 54 plates of 

drawings are included. All the basin areas are considered the same 

age. Unlike the Virginia Triassic, N. Carolina is richer in 

conifers, contains plants within upper, coarser units, and contains 

only rare fossils within the coal strata. The plant species are 

considered no older than Rhaetic in age. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 
Page 130 

402 p FOOSE, R.M., RYTUBA, J.J., AND SHERIDAN, M.F., 1968, Volcanic plugs in 

the Connecticut Valley Triassic near Mt. Tom, Massachusetts: Geological Society of America, Bulletin, v. 79, p. 1655-1662. 

SUMMARY: Five lava flows originated from this exposed plug and deformed the 

surrounding sediments. Direction of flow, primarily NE, was determined by plagioclase orientation. Petrographic and chemical data 

are presented. Local field relations of the flows, breccias, xenoliths, and intruded sediments are outlined. 

KEYWORDS: general geology 

basalt 

petrology 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

403 P : FORD, F.L., 1903, The trap rock of the Connecticut Valley: Stone, v. 

26, p. 130-133. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

404 P : FOSTER, G.V., 1943, Occurrences of prehnite at King Philip•s cave: 

Rocks and Minerals, v. 18, p. 298-299. 

KEYWORDS: basalt 

zeolites 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

405 A : FOYE, W.G., 1924, Anterior range of Connecticut: Geological Society of America, Bulletin, v. 35, p. 87. 

KEYWORDS: basalt 

surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

406 P : FOYE, W.G., 1936, A spatter cone in the main trap sheet, Farmington, 

Connecticut: American Journal of Science, v. 31, p. 296-300. 

SUMMARY: An apparent basalt vent is described from the Farmington Quarry and 

is composed of vesicular basalt cemented by calcite and datolite. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

DATA: Photo: spatter cone exposed in quarry; thin sections 
Page 131 

407 P : FOYE, WILBUR G., 1922, Origin of the Triassic trough of Connecticut: 

Journal of Geology, v. 30, p. 690-699. 

SUMMARY: An eastern border normal faulting theory is proposed as opposed to a 

bowl-shaped unfaulted geosyncline. Evidence is in part provided by 

coarse conglomerate, lack of bed repetition about a central 

symmetry, and volcanic centers near the eastern boundary. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

408 A FOYE, WILBUR G., 1922, Structure of the Connecticut Basin during the 

Newark Epoch: Geological Society of America, Bulletin, v. 33, p. 87-

89. 

SUMMARY: A faulted monocline is proposed rather than a downwarped peneplain. 

(A discussion follows the abstract and contains remarks in favor of 

faulting by J.B. Woodworth, C.E. Gordon, W.J. Miller, C.R. Longwell, and others.) 

KEYWORDS: structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

409 P : FOYE, WILBUR G., 1924, Abnormal dips near the eastern boundary fault 

of the Connecticut Triassic: Science, v. 59, p. 240. 

SUMMARY: A marked increase in steepening of dips is noted at the eastern 

fault and is attributed to a late stage of compression directed from 

the west. Dips increase to 50°E at the fault from l0°E one-half 

mile to the west. 

KEYWORDS: structure 

tectonics 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 132 

410 p FOYE, WILBUR G., 1924, Pillow structure in the Triassic basalts of 

Connecticut: Geological Society of America, Bulletin, v. 35, p. 329-

346. 

SUMMARY: Pillow basalts occur in the Anterior Range at Talcott, Lamentation, 

and East Peak Mountains. Their character is described, but their 

origin does not appear to correlate with other pillow studies. The 

Connecticut area is considered to have lacked significant bodies of 

water and the pillows did not form on the leading edge of the basalt 

flow. 

KEYWORDS: general geology 

basalt 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

411 p FOYE, WILBUR G., 1930, A basaltic vent of Triassic Age at Durham, 

Connecticut: American Journal of Science, 5th Series, v. 19, p. 

151-157. 

SUMMARY: An agglomeratic basalt exposure associated with local faulting is 

considered evidence for a volcanic vent at the eastern border of the 

basin. Stoping and secondary mineralization are also evident. 

Sketches and photographs are presented. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Middlesex Co., Durham 

Quadrangle 

412 T FRANZ, A.J., 1978, Sedimentology of the Sugarloaf Arkose, Late 

Triassic-Early Jurassic of the Connecticut Valley: M.S. Thesis, 

University of Massachusetts, 174 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin 
Page 133 

413 p FRASER, D.M., BUTLER, R.D., AND HURLBUT, C.S., JR., 1938, Prehnite 

from Coopersburg, Pennsylvania: American Mineralogist, v. 23, p. 

583-587. 

SUMMARY: The optical and crystallographic properties of prehnite are 

described from a vein within diabase. The diabase adjacent to the 

vein is altered to uralite, quartz, and epidote. 

KEYWORDS: mineralogy 

zeolites 

diabase 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks Co. 

414 P : FRAZER, P., 1877, Regarding some Mesozoic ores: American Philosophical Society, Proceedings, v. 16, p. 651-655. 

SUMMARY: A model is developed advocating erosion of pre-Triassic iron and 

copper deposits from the South Mountain region and deposition within 

the Triassic basin area. Consideration of the direction of sediment 

transport accounts for the observed geographic distribution of 

Triassic deposits. Triassic copper and iron deposits are therefore 

considered synsedimentary and not related to diabase intrusives. 

KEYWORDS: economic geology 

copper 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

415 p FRAZER, P., JR., 1880, The geology of Lancaster County: Pennsylvania 

Geological Survey (2nd), Report of Progress in 1877, Reports CCC, 350 

p. 

SUMMARY: General geologic descriptions, some chemical data; also detailed 

descriptions of worked mines, quarries and prospects in the county, 

with tables of chemical analyses of the 11 trap11 and other ore-bearing 

rocks. A brief description is given of the Triassic rocks present 

in the northern part of the county. Included are major oxide 

analyses of diabase, magnetite 11 ore, 11 and adjacent limestone from 

the Dillsburg (York County) mines and vicinity. 

KEYWORDS: general geology ~conomic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lancaster Co., York Co. 

DATA: Chern. (type of data): diabase (major); ores (major); limestone (major); 

orthofelsite (major) 
Page 134 

416 PM: FRAZER, PERSIFOR, 1886, General notes - sketch on the geology of York 

County, Pennsylvania: American Philosophical Society, Proceedings, v. 

23, p. 391-410. 

SUMMARY: The general geology of York County is outlined and the Mesozoic 

redbeds are described. An eastern conglomerate is recognized, as is 

coal near Liverpool; paleontological notes are also presented. 

KEYWORDS: general geology 

economic geology ~oal 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co. 

MAPS: Geol: [1:25,344] 

417 p FRAZER, PERSIFOR, JR., 1877, Report of progress in the counties of 

York, Adams, Cumberland and Franklin: Pennsylvania Geological Survey 

(2nd), Report CC, 200 p. 

SUMMARY: Detailed descriptions are given of the Dillsburg mines and include 

structure, ore analyses, drill hole logs, and mine plans. A 

discussion following the descriptive text advocates a sedimentary origin for the deposits. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Section: geologic cross sections 

Mise: mine locations with topography 

DATA: Chern. (type of data): ore (major oxide) 

418 P : FRAZER, PERSIFOR, JR., 1879, The Mesozoic sandstone of the Atlantic 

slope: American Naturalist, v. 13, p. 284-292. 

KEYWORDS: sediments 

sedimentation 

GEOGRAPHIC AREA: Regional 
Page 135 

419 F FRIEDMAN, G.M., SANDERS, J.E., AND MARTINI, I.P., 1982, Sedimentary facies: products of sedimentary environments in a cross section of 

the classic Appalachian Mountains and adjoining Applachian basin in 

New York and Ontario: 11th International Congress on Sedimentology, 

McMaster University, Hamilton, Ont., Field Excursion Guidebook, 

Excursion 17a, 266 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Regional 

420 p FRIEDMAN, GERALD M., 1954, Note on the relative abundance of some 

trace elements near the lower and upper contacts of the Palisades 

Sill: American Journal of Science, v. 252, no. 8, p. 502-503. 

SUMMARY: A brief study of trace elements was made and indicates that Cr, Co, 

Cu, Mn, Ti, and V decrease upwards, and Ni shows little differentiation. Volatiles appear to be enriched at the top. 

KEYWORDS: geochemistry 

diabase 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): trace elements 

421 p FRITTS, C.E., 1962, The barite mines of Cheshire: The Cheshire 

Historical Society, Cheshire, Connecticut. 

SUMMARY: The history, mine workings, and production of five barite deposits 

are outlined. Deposits occur as veins and fault breccia fillings 

closely associated with diabase and within interbedded siltstone, 

arkose, and conglomerate. No appreciable copper, zinc, or lead 

sulfides occur. 

KEYWORDS: economic geology 

barite 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol : sketch 

Mise: locations of mines, mine plans 

DATA: Photos: mineral specimens 
Page 136 

422 M : FRITTS, CRAWFORD E., 1963, Bedrock geology of the Mount Carmel Quadrangle: u.s. Geological Survey, Geologic Quadrangle Map GQ-199. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven Co. 

MAPS: Geol: [1:24,000] 

423 M : FRITTS, CRAWFORD E., 1963, Bedrock geology of the Southington Quadrangle: u.s. Geological Survey, Geologic Quadrangle Map GQ-200. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co., New Haven Co. 

MAPS: Geol: [1:24,000] 

424 P FRITTS, CRAWFORD E., 1963, Late Newark fault versus pre-Newark peneplain in Connecticut: American Journal of Science, v. 261, p. 268-

281. 

SUMMARY: Evidence for a pre-Newark peneplain is lacking in the southwestern 

Hartford Basin. New exposures of faults and unconformities and a 

general reinvestigation of the area provide such evidence. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven Co., Mount Carmel Quad~ 

MAPS: Mise: geol. sketches of field area 

DATA: Photos: Mixville fault, Roaring Brook unconformity 

425 M FROELICH, A., 1975, Map showing mineral resources of Montgomery 

County, Maryland: U.S. Geological Survey Miscellaneous Investiga- tions, Map 1-920-E. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Culpeper Basin, Maryland 

MAPS: Geol: [1:62,500] 
Page 137 

426 M : FROELICH, A.J., 1975, Bedrock map of Montgomery County, Maryland: 

U.S. Geological Survey Miscellaneous Investigations Map I-920-D. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Maryland 

MAPS: Geol: [1:62,500] 

427 M FROELICH, A.J., 1976, Map showing mineral resources of Fairfax County, Virginia - availability and planning for future needs: U.S. Geological Survey, Open-File Report 76-660. 

KEYWORDS: economic geology 

barite 

copper 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: [1:48,000] 

428 M FROELICH, A.J., 1978, Map showing planar and linear features of 

Fairfax County, Virginia: U.S. Geological Survey Open-File Report 

78-443. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: structure [1:48,000] 

429 M FROELICH, A.J., 1984, Maps showing geologic and hydrologic factors 

affecting land-use planning in the Culpeper basin, Virginia and 

Maryland: U.S. Geological Survey Miscellaneous Investigations Report 

I-1313-J. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Maryland 

MAPS: Mise: land-use planning [1:125,000] 
430 M 

Page 138 

FROELICH, A.J., AND LANGER, W.H., 1981, Geologic provinces, landforms, 

drainage basins and flooding in Fairfax County, Virginia: u.s. Geological Survey, Miscellaneous Investigation Map MI-1421. 

KEYWORDS: hydrology 

structure 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: [1:48,000] 

431 P FROELICH, A.J., AND OLSEN, P.E., 1984, Newark Supergroup, a revision 

of the Newark Group in eastern North America: U.S. Geological Survey 

Bulletin 1537A, 7 p. 

SUMMARY: A review of the regional setting of the Early Mesozoic basins is 

given; and the use of the term 11 Newark Supergroup .. to incorporate 

all exposed basins of eastern North America is stressed. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Regional 

432 M FROELICH, A.J., AND ZENONE, C., 1983, Geologic terrane, drainage 

basins, overburden, and low flow of streams in Fairfax County and 

vicinity, Virginia: u.s. Geological Survey Miscellaneous Investigations Map I-1534. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: [1:48,000] 

433 M FROELICH, A.J., AND ZENONE, C., 1983, The relation of water quality to 

geology and land-use changes in Fairfax County and vicinity, Virginia: 

U.S. Geological Survey Miscellaneous Investigations Map I-1561. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: [1:48,000] 
Page 139 

434 M FROELICH, ALBERT J., AND LEAVY, B.D., 1981, Map showing mineral 

resources of the Culpeper Basin, Northern Virginia and Maryland: u.s. 

Geological Survey Miscellaneous Investigations Map I-1313B. 

KEYWORDS: economic geology 

copper 

barite 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: lithology [1:125,000] 

435 F FROELICH, ALBERT J., LEAVY, B.D., AND LINDHOLM, R.C., 1982, Geologic 

traverse across the Culpeper Basin (Triassic-Jurassic) of northern 

Virginia: in, Lyttle, P.T., ed., Central Appalachian Geology, Geological Society of America, Field Trip Guidebook, p. 55-81. 

SUMMARY: Eight field stops in the northern area of the basin include eastern 

margin faults, hornfels, carbonate clast conglomerate, border conglomerate, basalt, and lacustrine sequences. Detailed discussions 

are provided. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: sketches 

Section: outcrop sections 

436 P FULLER, M.L., 1905, Triassic rocks of the Connecticut Valley sa 

source of water supply: U.S. Geological Survey Water Suppl Paper, 

no. 110, p. 95-112. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

437 A : FULLER, RICHARD E., 1950, Palisades joint cracks: Geological Society of America, Bulletin, v. 61, p. 1523. 

SUMMARY: An exposure on 125 St. in New York exposes the basal chill zone, and 

olivine-rich and olivine-poor phases. Vertical joints rep esent 

escape of volatiles without alteration of olivine. 

KEYWORDS: general geology 

diabase 

GEOGRAPHIC AREA: Newark Basin, New York 
Page 140 

438 PM: FURCRON, A.S., 1939, Geology and mineral resources of the Warrenton 

Quadrangle, Virginia: Virginia Geological Survey, Bulletin 54, 94 p. 

SUMMARY: The Triassic area, bordered on the west by the Catoctin Fault, 

contains a lower Bull Run shale and an upp~r fanglomerate, which 

contains Catoctin metabasalt fragments. Several barite deposits are 

mentioned. 

KEYWORDS: general geology 

stratigraphy 

economic geology 

barite 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Culpeper Co., Fauquier Co., 

Warrenton Quad. 

MAPS: Geol: [1:62,500] 

G 

439 F GANIS, G.R., AND HOPKINS, D., 1984, Stratigraphy, structural style, 

and economic geology of the York-Hanover Valley: Harrisburg Area 

Geological Society, 3rd Annual Field Trip, 51 p. 

SUMMARY: Caves within the Cambrian Ledger dolomite just south of the Triassic 

border near Thomasville contain red shale of presumed Triassic age 

with angular dolomite blocks. A 70-foot wide zone of coarse 

dolomite breccia cemented with red shale also occurs in this quarry 

(J.E. Baker Company). Another field trip stop in the area displays 

the New Oxford (Triassic) overlap onto Precambrian greenstone at the 

south basin marg1n. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York County 

MAPS: Geol: sketches 
440 PM: GATES, ROBERT M., 1954, The bedrock geology of the Woodbury 

Quadrangle: Connecticut Geological and Natural History Survey, 

Quadrangle Report 3, 23 p. 

Page 141 

SUMMARY: This area includes the northern part of the basin and consists of 

poorly exposed sandstone and conglomerate and the middle basalt flow 

of the Meriden Formation. An eastern border fault is represented on 

the map. No detailed discussions of the sediments or basalt are 

given, and the reader is referred to W.H. Hobbs {1901). 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut 

MAPS: Geol: [1:31,680] 

441 T GEODE, R.W., 1965, Geophysical investigation of a magnetite deposit, 

Chester County, Pennsylvania: M.S. Thesis, Pennsylvania State University, 59 p. 

KEYWORDS: geophysics 

economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Chester Co. 

442 A GEDDES, WILBURT H., AND THAYER, PAUL A., 1971, Gravity investigation 

of the Dan River Triassic Basin of North Carolina: Geological Society 

of America, Abstracts with Programs, v. 3, p. 312-313. 

SUMMARY: Data collected from 450 gravity stations indicates a 2-milligal 

anomaly associated with the basin with.small anomalies correlated to 

buried diabase. The sedimentary units are estimated to be 5000 feet 

thick. 

KEYWORDS: geophysics 

gravity 

structure 

GEOGRAPHIC AREA: Dan River Basin, North Carolina 
Page 142 

443 A GEIGER, F.J., PUFFER, J.H., AND LECHLER, P.J., 1980, Geochemical and 

petrographic evidence of the former extent of the Watchung basalts of 

New Jersey and of the eruption of the Palisades magma onto the floor 

of the Newark Basin: Geological Society of America, Abstracts with 

Programs, v. 12, p. 37. 

SUMMARY: Trace elements and petrography indicate the Sand Brook and 

Germantown basalts are erosional remnants of the First and Second 

Watchung flows. The Ladentown diabase is correlated with the second 

Palisades magma. 

KEYWORDS: basalt 

geochemistry 

stratigraphy 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York, Hunterdon Co., Rockland 

Co. 

444 T : GERHARD, R.C., 1952, Petrologic study of rocks of the Newark Group, 

eastern Pennsylvania: M.S. Thesis, University of Chicago. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

445 PM: GEYER, A.R., 1970, Geology, mineral resources, and environmental 

geology of the Palmyra Quadrangle, Lebanon and Dauphin Counties: 

Pennsylvania Geological Survey Atlas 157d, 45 p. 

SUMMARY: This northern edge of the basin is fault bounded and internally 

folded, consists of coarse sandstone, shale, and conglomerate of the 

Hammer Creek Fm., and contains irregular bodies of diabase, some of 

which enter the pre-Triassic rocks to the north. The geologic 

relations of the faults and folds and descriptions of the diabase 

are included. A small magnetite (Cornwall-type) deposit occurs 

along the north margin of the basin in the Mill Hill slate, but is 

not described in detail. 

KEYWORDS: general geology 

structure 

economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lebanon C~unty, Dauphin 

County, Palmyra Quad. 

MAPS: Geol: [1:24,000] 

Section: columnar 
446 M 

Page 143 

GEYER, A.R., AND BERG, T.M., 1976, Ephrata Quadrangle, Pennsylvania: 

in, Berg, T.M., and Dodge, C.M., eds., 1981, Atlas of Preliminary ~ologic Quadrangle Maps of Pennsylvania, Pennsylvania Geological 

Survey, Map 61, p. 204. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania, Lancaster 

Co., Ephrata Quad. 

MAPS: Geol: [1:24,000] 

447 p GEYER, A.R., BUCKWALTER, T.V., MCLAUGHLIN, D.B., AND GRAY, C., 1963, 

Geology and mineral resources of the Womelsdorf Quadrangle: Pennsylvania Geological Survey, Atlas 177c, 96 p. 

SUMMARY: This northern area of the basin, bounded on the N by a normal fault, 

is composed of the Gettysburg Fm. Here, the Gettysburg consists of 

a lower conglomeratic facies, a central sandstone-shale facies, and 

an upper conglomeratic facies, the latter of which contains 

Martinsburg Fm. shale fragments. The lower conglomerate lenses thin 

eastward away from the Hammer Creek alluvial fan. Provenance, 

structure, and diabase intrusions are further discussed. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania, Lancaster 

Co., Lebanon Co., Womelsdorf Quad. 

MAPS: Geol: [1:24,000] 

448 F GEYER, ALAN R., AND GRAY, CARLYLE, 1957, Triassic Basin and Great 

Valley from Lancaster-Lebanon interchange on the Pennsylvania Turnpike 

to Harrisburg: in, Dorf, E., ed., Guidebook for Field Trips, 

Atlantic City Meeting, 1957, Geological Society of America, p. 

233-254. 

SUMMARY: A description of the Cornwall deposit is given. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania, Lebanon Co. 

MAPS: Mise: geologic sketch map of Cornwall mine area 
Page 144 

449 M GEYER, ALAN R., GRAY, CARLYLE, MCLAUGHLIN, DEAN B., AND MOSELEY, JOHN 

R., 1958, Geology of the Lebanon Quadrangle: Pennsylvania Geological Survey, Fourth Series, Geologic Atlas, 167 c. 

KEYWORDS: general geology 

economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lebanon Co., Lebanon Quad. 

MAPS: Geol: [1:24,000] 

Section: cross sections 

450 F GEYER, ALAN R., SMITH, R.C., II, AND BARNES, J.H., 1976, Mineral 

collecting in Pennsylvania: Pennsylvania Geological Survey, General 

Geology Report 33, 260 p. 

SUMMARY: This revised version presents the history, geologic setting, and 

minerals of a number of Triassic occurrences including zeolites in 

diabase, Cornwall-type deposits, and copper, lead-zinc occurrences. 

KEYWORDS: economic geology 

copper 

lead 

zinc 

iron 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

MAPS: Mise: local topographic maps showing mineral localities 

451 T GHAFFER-ADLY, R., 1961, A detailed gravity survey in the Triassic 

basin, north Chester Co., Pennsylvania: M.S. Thesis, The Pennsylvania State University. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Chester County 
452 A GIERLOWSKI-KORDESCH, E., 1983, Playa deposition in a closed basin 

system: East Berlin Formation: Geological Society of America, 

Abstracts with Programs, v. 15, p. 122. 

Page 145 

SUMMARY: Facies of the formation (primary textures and interpretation), 

indicate a sandflat-mudflat-lake model. Facies include: fossiliferous oil shale (perennial lake}; mudcracked, planar mudstones with 

sand lenses (dry, playa mudflat); concretion zones in mudstone 

(diagenetic disruption zone); and cross-laminated mudstone 

(sandflat). 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

453 P : GILBERT, G.K., 1894, The name 11 Newark 11 in North American stratigraphy: 

Journal of Geology, v. 2, p. 55-61. 

SUMMARY: A set of criteria is discussed that justifies stratigraphic 

nomenclature and the use of the term 11 Newark ... A short response by 

B.S. Lyman in disagreement follows. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Regional 

454 T GILCHRIST, J.M., 1979, Sedimentology of the Lower to Middle Jurassic 

Portland Arkose of central Connecticut: M.S. Thesis, University of 

Massachusetts, 166 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

455 P : GILLSON, J.L., 1926, Pigeonite from the Triassic traps of the 

Connecticut Valley: American Mineralogist, v. 11, p. 317-319. 

KEYWORDS: basalt 

diabase 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
456 M : GINSBERG, M.H., 1976, Map showing depth to bedrock, Guilford 

Quadrangle, Connecticut: U.S. Geological Survey, Map MF-583c. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 

457 M GINSBERG, M.H., 1976, Map showing depth to bedrock, New Haven and 

Woodmont Quadrangles, Connecticut: u.s. Geological Survey, Map 

MF-557a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 

458 P : GIROUARD, J.G., 1967, The Appalachian Triassic basin uranium belt 

theory: Rocks and Minerals, v. 42, p. 373. 

KEYWORDS: economic geology 

uranium 

GEOGRAPHIC AREA: Regional 

Page 146 

459 P GIVEN, M.M., 1977, Mesozoic and early Cenozoic geology of offshore 

Nova Scotia: Canadian Petroleum Geology Bulletin, v. 25, no. 1, p. 

63-91. 

KEYWORDS: buried basins 

stratigraphy 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

460 T GLAESER, J. DOUGLAS, 1958, Petrology of the basal Stockton (Triassic) 

lithofacies of eastern Montgomery County, Pennsylvania: M.S. Thesis, 

Miami University, Ohio, 73 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery Co. 
461 p 

Page 147 

GLAESER, J. DOUGLAS, 1963, Lithostratigraphic nomenclature of the 

Triassic Newark-Gettysburg Basin: Pennsylvania Academy of Science, 

Proceedings, v. 37, p. 179-188. 

SUMMARY: The Hammer Creek Fm. is defined and proposed as lying between the 

Gettysburg and Brunswick Fms. The type section is presented. New 

Oxford and Stockton sections are presented and represent the basal 

units. Gettysburg, Lockatong, and Brunswick sections are presented. 

Brunswick-Lockatong intertongueing represents a lithosomal relationship. 

KEYWORDS: general geology stratigraphy 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

MAPS: Geol: regional 

462 T 

Mise: geologic sketch maps (detail of Brunswick-Lockatong 

relations, detail of narrow area near Schuylkill River) 

GLAESER, J. DOUGLAS, 1964, Provenance, dispersal, and depositional 

environment of Triassic sediments im the Newark-Gettysburg Basin: 

Ph.D. Thesis, Northwestern University, 234 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

463 A GLAESER, J. DOUGLAS, 1965, Sediment dispersal interpreted from 

composition and texture distributions in the Triassic NewarkGettysburg Basin: Geological Society of America, Special Paper 82, p. 

73. 

SUMMARY: The present outcrop shape of the basin closely approximates that 

during sedimentation. Evidence includes the felspar-rich, poorly sorted, angular fragments of the lower Stockton and New Oxford Fms. 

which required short transport distance. Character of the limestone 

conglomerates of the Brunswick ahd Gettysburg Fms. imply the same. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark-Gettysburg Basin, Pennsylvania 
464 p 

Page 148 

GLAESER, J. DOUGLAS, 1966, Provenance, dispersal, and depositional environments of Triassic sediments in the Newark-Gettysburg Basin: 

Pennsylvania Geological Survey, 4th, General Geology Report 43 

(Bulletin G43), 168 p. 

SUMMARY: Stockton and New Oxford Fms. represent arkosic sediments derived 

from granitics south of the basin and dispersed normal to the basin. 

Hammer Creek Fm. sediments represent dispersal through a narrow fone 

from the north and lateral dispersal within the basin to develop 

Heidlersberg and Lockatong sediments. Medial sediments contain 

detrital hematite. Petrography and sedimentation environments are 

further discussed. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

MAPS: Mise: sample locations, rock color variation 

DATA: Plots: petrography, sediment composition, texture, thin section 

data 

465 A GLAESER, J. DOUGLAS, 1971, A possible sedimentologic analogue of the 

Triassic Newark-Gettysburg Basin - the Northwest Gulf of California: 

Geological Society of America, Abstracts with Programs, v. 3, p. 32-

33. 

SUMMARY: (See J.D. Glaeser, 1971.) Aridity is supported by Lockatong chemical cycles, glauberite, anhydrite and caliche. The analogue is supported by the basin's arkosic sediments; lateral, parallel to basin 

axis dispersal (Hammer Creek Fm.); and the fact that the Hammer 

Creek clastic barrier permitted the soda-rich Lockatong lake 

deposits. Red b~ds are not considered climatic indicators. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

466 A GLAESER, J. DOUGLAS, 1971, Sedimentologic evidence of a warm arid 

climate in the Triassic Newark-Gettysburg Basin: Pennsylvania Academy 

of Science, Proceedings, v. 45, p. 197-198. 

SUMMARY: The basin's depositional history is found to be analogous with 

present warm-arid sedimentation in the Gulf of California. Evidence 

includes: marginal, alluvial, arkosic, caliche-rich Stockton and 

New Oxford Fms.; Hammer Creek Fm. deltaic-like dispersal; and 

limestone conglomerates. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania (Regional) 
Page 149 

467 A GLAESER, J. DOUGLAS, 1979, Environments for sedimentary uranium in 

Triassic- Jurassic Basins, Eastern North America: American 

Association of Petroleum Geologists, Bulletin, v. 63, no. 5, p. 827. 

SUMMARY: It is suggested that uranium potential exists within the basins• 

interfingering oxidizing feldspar-rich weathering products (alluvial 

fans) and reducing medial dark shales and coals. Pre-Triassic 

granitic rocks were the source of the sediments. 

KEYWORDS: economic geology 

uranium 

sedimentation 

GEOGRAPHIC AREA: Regional 

468 P : GLENN, M.L., 1917, Pectolite pseudomorphs after quartz from West 

Paterson, N.J.: American Mineralogist, v. 2, p. 43-45. 

SUMMARY: The chemistry and optical properties of the pectolite replacements 

are described. The specimens are from the McKiernan and Bergin•s 

Quarries. 

KEYWORDS: mineralogy 

zeolites 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Passaic County 

469 A GLOVER, LYNN, III, POLAND, F.B., TUCKER, R.D., AND BOURLAND, W.C., 

1980, Diachronous Paleozoic mylonites and structural heredity of 

Triassic-Jurassic basins in Virginia: Geological Society of America, 

Abstracts with Programs, v. 12, p. 178. 

SUMMARY: It is shown that, with possible exception of the Culpeper Basin, the 

eastern (Richmond), central (Farmville), and western (Danville and 

Scottsville) basins localized along pre-existing thrust fault zones 

of Paleozoic age. Age data on these greenschist facies ductile 

zones suggest that the western zone is of Taconic age, the central 

zone is Acadian, and the eastern zone is Alleghanian. Such heredity precludes a simple Triassic stress field origin for basin localization. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Virginia 
Page 150 

470 p GOHN, G.S., GOTTFRIED, D., LANPHERE, M.A., AND HIGGINS, B.B., 1978, 

Regional implications of Triassic or Jurassic age for basalt and 

sedimentary red beds in the South Carolina Coastal Plain: Science, v. 

202, p. 887-890. 

SUMMARY: K-Ar dating on basalt intersected beneath the Coastal Plain near 

Charleston yields early Mesozoic ages suggesting the presence of a 

buried basin. Red-beds underlie the basalt and are also interpreted as early Mesozoic. (The reader is referred to Gohn and 

others, 1983, for a more complete discussion.) 

KEYWORDS: buried basins 

geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Charleston, South Carolina 

DATA: Chern. (type of data): K-Ar data 

471 A GOHN, G.S., AND OTHERS, 1978, Preliminary report on the geology of two 

deep test holes, Clubhouse Crossroads No. 2 and No. 3, near 

Charleston, South Carolina: Geological Society of America, Abstracts 

with Programs, v. 10, p. 169-170. 

SUMMARY: Upper Triassic-Lower Jurassic basalt was encountered between 775 m 

and 1032 m below Coastal Plain and above red-beds. K-Ar ages are 

162-204 m.y., older than core no. 1 basalt but similar in composition (quartz-normative). K and Rb are variable, two magmas are 

present, and a serpentinized olivine zone occurs at 925 m. Red-beds 

are unfossiliferous with abundant conglomerate. 

KEYWORDS: buried basins 

geophysics 

radiometric age 

K/Ar dating 

geochemistry 

basalt 

GEOGRAPHIC AREA: SW Dorchester Co., South Carolina 
Page 151 

472 p GOHN, GREGORY S., HOUSER, BRENDA B., AND SCHEIDER, RAY R., 1983, 

Geology of the Lower Mesozoic(?) sedimentary rocks in Clubhouse 

Crossroads Test Hole No. 3, near Charleston, South Carolina: U.S. 

Geological Survey Professional Paper 1313D, 17 p. 

SUMMARY: 121 meters of red-beds underlie 256 meters of subaerial basalt 

beneath 775 meters of Coastal Plain cover. The lower 82 meters of 

sediments are coarser grained and conglomeratic. Sandstones are 

arkosic. Heavy minerals and lithic fragments indicate a granitic 

source. Petrography, mineralogy, sedimentary structures, and 

tectonics are discussed. 

KEYWORDS: buried basins 

sedimentation 

GEOGRAPHIC AREA: Charleston, South Carolina 

MAPS: Section: core logs 

Mise: core location 

DATA: Photos: core sediments 

473 p 

Plots: petrography, mineralogy 

GOLDICH, SAMUEL S., AND OSLUND, EILEEN H., 1956, Composition of 

Westerly granite G-1 and Centerville diabase W-1: Geological Society 

of America, Bulletin, v. 67, p. 811-815. 

SUMMARY: Chemical analyses of the diabase are presented, and the analytical 

methods are discussed. (The analysis is part of U.S. Geological 

Survey Bulletin 980, which deals with analytical precision and 

accuracy.) 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

DATA: Chern. (type of data): major oxide, trace 

474 P GOLDSTEIN, A.G., AND WISE, D.U., 1982, W.H. Hobbs revisted: fracture 

and lineament studies in southwestern New England: Northeastern 

Geology, v. 4, p. 73-80. 

KEYWORDS: tectonics 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 152 

475 p GOLDSTEIN, ARTHUR G., 1975, Brittle fracture history of the Montague 

Basin, North-Central Massachusetts: Department of Geology and 

Geography, University of Massachusetts, Contribution No. 25, 99 p. 

SUMMARY: Orientations and relative motions of 3300 faults and joints were 

studied in two areas - Turners Falls and Cheapside. Both areas 

contain numerous conjugate strike-slip faults developed before 

bedding was tilted. Normal faults are present. Jointing is normal 

to bedding and developed prior to tilting. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Mise: geologic sketch map 

DATA: Plots: structural data, stereonets, etc. 

476 A GOLDSTON, E.F., AND STUCKEY, J.L., 1930, The Jonesboro fault scarp 

west of Cary, N.C.: Elisha Mitchell Scientific Society, Journal, v. 

46, p. 67-68. 

SUMMARY: A brief description is given of a 50-foot wide shear zone exposed in 

a railroad cut two miles west of Cary that marks the contact between 

Triassic rocks to the west and schists to the east. The Jonesboro 

fault at this exposure strikes N 65°E. Triassic rocks adjacent to 

the fault are coarse conglomerates that dip 5 to 10 degrees NW. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Deep River _gasin, North Carolina, Wake Co., Cary Quad. 

477 A : GOODWIN, B.K., 1971, The structure of the northern half of the 

Richmond Basin: Virginia Journal of Science, v. 22, no. 3, p. 120. 

SUMMARY: North of 37°30 1 , Triassic rocks on the eastern margin are in unconformable contact with granites that are locally offset by normal 

faults. The western margin, characterized by a 1000-foot wide zone 

of coarse boulder conglomerate, is in normal-fault contact with 

granites and metavolcanics. The synclinal structure of basin sediments is attributed to post-depositional uplift of a fault-bounded 

Petersburg granite block along the west margin. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Richmond Basin, Virginia 
Page 153 

478 A GOODWIN, B.K., AND JOHNSON, G.H., 1967, Geologic structures and 

stratigraphy of a portion of the Triassic Basin at Deep Run, Henrico 

County, Virginia: Virginia Journal of Science, v. 18, p. 185. 

SUMMARY: Exposures along Interstate 95 between Deep Run and Cox Road reveal a 

small Triassic basin that is fault-bounded with the Petersburg 

granite along the west side. Normal faults and folding occur within 

coal beds, red micaceous arkose, and silty shale. The basin is just 

southeast of Short Pump and a mile east of the Richmond Basin. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Richmond Basin, Virginia 

479 PM: GOODWIN, BRUCE K., 1970, Geology of the Hylas and Midlothian Quadrangles, Virginia: Virginia Division of Mineral Resources, Report of 

Investigations 23, 51 p. 

SUMMARY: The lithologic units and structural development of the Northern 

Richmond Basin are summarized. Basal coal seams occur within 

arkosic sandstone and shale, and conglomerates occur along the 

western and eastern borders. The western border is fault-bounded 

with a paleozoic horst present. 

KEYWORDS: general geology 

economic geology 

coal 

structure 

GEOGRAPHIC AREA: Richmond Basin, Virginia, GoochlCo., Chesterfield Co., and 

Powhatan Co. 

MAPS: Geol: [1:24,000] 

Section: stratigraphic (2) 

DATA: Photos: Tertiary-Triassic contact 

480 A GOODWIN, BRUCE K., 1980, A reconnaissance study of the geology of the 

southern half of the Richmond Basin, Virginia: Virginia Journal of 

Science, v. 31, p. 126. 

SUMMARY: Four mappable units (south of 37°30') occur: (1) coarse conglomerate (along the western faulted margin), (2) coal measures 

(unconformable upon the basement along the eastern margin), (3) gray 

lacustrine sandstone and shale, and (4) red fluvial sandstone 

(1500-feet thick). Beds dip westward, although local flexures to an 

easterly dip are present - especially along the border faults. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Richmond Basin, Virginia 
Page 154 

481 M : GOODWIN, BRUCE K., 1980, Geology of the Bon Air Quadrangle, Virginia: 

Virginia Division of Mineral Resources, Publication 18. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Richmond Basin, Virginia, Henrico Co., Chesterfield Co., Bon 

Air Quad. 

MAPS: Geol: [1:24,000] 

482 A GOODWIN, BRUCE K., 1981, Some stratigraphic details of the Otterdale 

sandstone in the Richmond Basin: Virginia Journal of Science, v. 32, 

no. 3, p. 127. 

SUMMARY: This formation occurs along the western margin of the basin and is 

arkosic and conglomeratic. Cross-stratification occurs, and conglomerates occupy channel bases within finer sandstone. Northeastward, the Otterdale interfingers with the Vinita beds and 

becomes finer. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Richmond Basin, Virginia 

483 p GORDON, SAMUEL G., 1916, A review of the genesis of the zeolite 

deposits of First Watchung Mountain, N.J.: American Mineralogist, v. 

1, p. 73-80. 

SUMMARY: This brief work reviews the literature on the deposits and outlines 

the minerals present. The author favors the view that the zeolites 

formed by the presence of lake water with a magmatic water component 

and not by circulating ground water. 

KEYWORDS:· mineralogy 

zeolites 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 155 

484 P : GORDON, SAMUEL G., 1959, The mineralogy of Pennsylvania: Philadelphia 

Academy of Natural Sciences, Special Publication No. 1, 255 p. 

SUMMARY: Mineral locations with references are presented for counties containing Triassic rocks. Cornwall-type magnetite occurrences as well 

as minor copper, lead, zinc, and barite deposits are mentioned. No 

maps are provided. 

KEYWORDS: bibliography zinc 

economic geology 

iron 

copper 

barite 

1 ead 

GEOGRAPHIC AREA: Newark and Gettysburg Basins, Pennsylvania 

485 A GORE, P.J.W., AND LINDHOLM, R.C., 1983, Paleoecology of Triassic and 

Jurassic lacustrine deposits in the Culpeper Basin of northern 

Virginia: Geological Society of America, Abstracts with Programs, v. 

15, p. 122. 

SUMMARY: Lacustrine sequences deposited in perennial lakes contain black 

shale (maximum water depth) within gray lutites (shallower water) 

and are of two types: (1) conchostracans and ostracodes in gray and 

black uni-ts with fish restricted to black units; (2) sparsely 

fossiliferous with the former two fossil groups as well as notostracans present in some near-shore transitional gray to red lutites at 

the top of the given sequence. 

KEYWORDS: paleontology 

sedimentation 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

486 T GORE, PAMELA J.W., 1983, Sedimentology and invertebrate paleontology of Triassic and Jurassic lacustrine deposits, Culpeper Basin, northern 

Virginia: Ph.D. Thesis, George Washington University, 356 p. 

KEYWORDS: sedimentation 

paleontology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
Page 156 

487 p GOTTFRIED, D., ANNELL, C.S., AND BYERLY, G.R., 1983, Geochemistry and 

tectonic significance of subsurface basalts from Charleston, South 

Carolina: Clubhouse Crossroads Test Holes No. 2 and No. 3: U.S. 

Geological Survey Professional Paper 1313A, 19 p. 

SUMMARY: Two basalt chemical types are present: a high-Ti, quartz-normative 

tholeiite, and an olivine-normative tholeiite. The latter is 

intercalated within the former. Quartz-norm. basalt below the 

olivine norm. basalt contains more Cu and Ni with a higher Ni/Co 

ratio attributed to early separation of a sulfidic melt. Olivine 

tholeiites are therefore not the earliest stage of volcanism in the 

Early Mesozoic Province. 

KEYWORDS: basalt 

geochemistry 

petrology 

mineralogy 

petrology 

GEOGRAPHIC AREA: South Carolina 

MAPS: Section: core logs 

DATA: Chern. (type of data): major, minor, trace, REE 

Plots: Hf-Th-Ta (basalt) 

488 A GOTTFRIED, D., DOOLEY, R.E., AND HIGGINS, M.W., 1983, Geochemistry of 

lower Mesozoic diabase dikes of the Georgia Piedmont: implications 

for mantle heterogeneity: Geological Society of America, Abstracts 

with Programs, v. 15, p. 583. 

SUMMARY: Olivine tholeiites dominate this suite of NW-trending dikes, 

although other tholeiitic magma types are present (see Weigand and 

Ragland, 1970). Low- and high-Ti quartz-normative types may have 

been derived from two recognized olivine-normative types. Olivinenormative dikes show light REE depletion, previously unrecognized in 

the Eastern Mesozoic province. Olivine- and quartz-normative types 

may be contemporaneous (190-195 m.y.) suggesting variations in 

extent and process of melting of a heterogeneous mantle source. 

KEYWORDS: geochemistry 

diabase 

petrology 

GEOGRAPHIC AREA: Georgia 
Page 157 

489 p GOTTFRIED, D., MOORE, R., AND CAEMMERER, A., 1962, Thorium and uranium 

in some alkalic igneous rocks from Virginia and Texas: U.S. 

Geological Survey Professional Paper 4508, p. B70-B72. 

SUMMARY: Dikes of assumed Triassic age studied by Watson and Cline (1913) are 

analyzed for uranium and thorium and show increasing uranium and 

thorium in the more siliceous dikes. Rock types are nepheline 

syenite, teschenite, and picrite. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Virginia, Augusta Co. 

DATA: Chern. (type of data): diabase (Th, U) 

Plots: Th and U vs. Si02 + Ca0/Na20 + K20 

490 A GOTTFRIED, DAVID, 1983, Cu, Ni, and Co fractionation patterns in 

Mesozoic tholeiitic magmas of Eastern North America: evidence for 

sulfide fractionation: Geological Society of America, Abstracts with 

Programs, v. 15, p. 92. 

SUMMARY: During fractional crystallization, Ni and to a lesser extent Co are 

depleted (decreasing Ni/Co ratio), and Cu is enriched in the 

residual liquid. Unlike the Palisades (N.J.) and Dillsburg (Pa.) 

intrusions which follow this pattern, intrusions in North and South 

Carolina show depletion of Cu as well as a decreasing Ni/Co ratio 

consistent with separation of an immiscible sulfide melt. Such 

fractionation can serve as a guide for magmatic Ni-Cu sulfide 

deposits. 

KEYWORDS: petrology 

diabase 

geochemistry 

economic geology 

copper 

GEOGRAPHIC AREA: Regional 
Page 158 

491 p GOTTFRIED, DAVID, ANNELL, C.S., AND SCHWARZ, L.J., 1977, Geochemistry 

of subsurface basalt from the deep core hole (Clubhouse Crossroads 

Corehole 1) near Charleston, South Carolina- magma type and tectonic 

implications: U.S. Geological Survey Professional Paper 1028, p. 

91-113. 

SUMMARY: Forty-two meters of basalt, much of which has undergone oxidation, 

hydration, and hydrothermal alteration, are shown chemically to 

resemble the high-Ti quartz-normative tholeiite type (Weigand and 

Ragland, 1970). Discussions include: rare earth element patterns, 

trace elements, and comparison to other tholeiitic provinces. The 

basalts are shown to be temporarily and spatially associated with 

the Early Mesozoic rifting regime. 

KEYWORDS: geochemistry 

basalt 

GEOGRAPHIC AREA: South Carolina 

DATA: Chern. (type of data): basalt (major, trace) 

Plots: Ti vs. Zr; Zr-Ti-Sr; Zr-Ti-Y; REE abundance 

492 P GOTTFRIED, DAVID, AND GREENLAND, L. PAUL, 1972, Variation of iridium 

and gold in oceanic and continental basalts: 24th International 

Geological Conference, Proceedings, Section 10, p. 135-144. 

SUMMARY: Included in this discussion of the distribution and variation of 

iridium and gold are analyses of North Carolina dikes (localities 

given in Ragland and others, 1980): Au (4.8 ppb), Ir (0.38). The 

dikes more closely resemble primitive mantle material than do 

Hawaiian lavas and East Pacific Rise alkalic basalts. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: North Carolina 

DATA: Plots: Ir vs. K20 
Page 159 

493 p GOTTFRIED, DAVID, GREENLAND, L. PAUL, AND CAMPBELL, E.Y., 1968, Variation of Nb-Ta, Zr-Hf, Th-U, and K-Cs in two diabase granophyre suites: 

Geochimica et Cosmochimica Acta, v. 32, p. 925-947. 

SUMMARY: The trace element variations within diabase differentiates were 

studied. Dillsburg, Pa. diabase was investigated. With differentiation, Nb, Ta, Zr, Hf, Th, U, Cs increase. The Zr/Hf ratio 

decreases, the Th/U ratio remains constant. Other considerations 

indicate that crustal contamination does not account for t~e 

differences between oceanic and continental tholeiites. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co. 

DATA: Chern. (type of data): trace elements (see summary) 

Plots: trace elements vs. mafic index 

494 P : GRANBERRY, J.H., 1906, History of the Schuyler Mine: Engineering and 

Mining Journal, v. 82, p. 1116-1119. 

SUMMARY: The mine operations began in the early eighteenth century and continued to the late nineteenth. Ore contains from 6 to 70 percent 

copper and up to 7 ounces per one hundred pounds silver. Chalcocite 

and copper carbonates occur in shale and sandstone adjacent to 

diabase. Ore is localized along fractures. A six- to nine-inch 

seam of shale containing six-percent copper occurs just below 

brecciated basalt (photo of quarry face shows this relationship). 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Bergen Co. 

495 P : GRANBERRY, J.H., 1907, The Schuyler Mine: Journal of the Franklin 

Institute, v. 164, p. 13-28. 

SUMMARY: A detailed review is given of the history of mine development, the 

expenditures and production, mine plans and workings, and operation. 

Ore minerals are chalcopyrite and copper carbonates within fractured 

red and gray sandstone and shale adjacent to diabase. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Bergen County, Orange Quad. 

MAPS: Mise: mine plans 
Page 160 

496 T : GRANNELL, DANA B., 1961, Geologic section across the Durham Triassic 

Basin, North Carolina: M.S. Thesis, North Carolina State University. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

497 P : GRATACAP, L.P., 1886, Fish remains and tracks in the Triassic rocks at 

Weehawken, New Jersey: American Naturalist, v. 20, no. 3, p. 243-246. 

SUMMARY: A bed of shale eight feet thick contains fossil fish, plant, and nut 

remains along its base, is in contact with the Palisades Sill above, 

and grades downward into a feldspathic sandstone that contains footprints. Sketches are provided. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hudson County 

498 FM: GRAY, CARLYLE, AND LAPHAM, DAVIS M., 1961, Guide to the geology of 

Cornwall, Pennsylvania: Pennsylvania Geological Survey, Bulletin G35, 

18 p. 

SUMMARY: This is a brief review of the field geology of the Cambro-Ordovician 

and Triassic host rocks, the diabase, and the structure and mineralogy of the ore zone. A brief historic introduction is included. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Gettysburg Basin, Pennsyl- vania,.~ebanon Co. 

MAPS: Geol: Cornwall area [1:63,360] 

Section: cross section (ore relations) 

499 F GRAY, CARLYLE, AND SOCOLOW, ARTHUR A., 1959, Mineral deposits of 

Eastern Pennsylvania: Geological Society of America, Guidebook for 

Field Trips, Pittsburgh Meeting, 1959, Field Trip 4, p. 143-166. 

SUMMARY: The history, local stratigraphy, structure, and ore petrography of 

the Cornwall deposit are outlined briefly. (The reader is also 

referred to Gray and Lapham, 1961.) 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania, Lebanon Co. 

MAPS: Section: cross sections (ore relations) 
500 M 

Page 161 

GRAY, CARLYLE, GEYER, A.R., AND MCLAUGHLIN, D.B., 1958, Geology of the 

Richland Quadrangle: Pennsylvania Geological Survey, Fourth Series, 

Geologic Atlas 167 D. 

KEYWORDS: structure 

general geology 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania, Lebanon 

County, Lancaster County, Richland Quad. 

MAPS: Geol: [1:24,000] 

501 A GRAY, N.H., STEINEN, R.P., AND ANDERSON, J.B., 1978, Banded chalcedony 

in the Mesozoic basalts of Connecticut: Geological Society of 

America, Abstracts with Programs, v. 10, no. 2, p. 45. 

SUMMARY: Chalcedony-lines cavities in the Talcott and Hampden basalts near 

Farmington, Conn. are described. Precipitation of the various quartz 

morphologies is attributed to silica-saturated geothermal waters that 

experienced episodic "geyser-like" flash boiling. 

KEYWORDS: basalt 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

502 F GRAY, NORMAN H., 1982, Copper occurrences in the Hartford Basin of 

northern Connecticut: in, Joesten, R., and Quarrier, S.S., eds., 

Guidebook for Fieldtrips-in Connecticut and South Central Massachusetts, New England Intercollegiate Geological Conference, 74th Annual 

Meeting, p. 195-211. 

SUMMARY: Copper mineralization is discussed for the Newgate Prison Mine, 

Higley Copper Mine (East Granby), and veins in New Britain. The 

Newgate deposit consists of a bornite, chalcopyrite, and chalcocite 

impregnated arkosic gray sandstone. Mineralization follows an 

unconformity just above the Talcott basalt flow and may be attributed to late Talcott hydrothermal activity. The Higley Mine consists of copper sulfide- and carbonate- filled fractures within the 

amygdaloidal section of the upper Talcott flow. Carbonate-quartzbarite veins along faults at New Britain are attributed to diage- netic fluid remobilization. 

KEYWORDS: economic geology 

copper 

uranium 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: sketches 

Section: mine plans 
Page 162 

503 F GRAY, NORMAN H., 1982, Mesozoic volcanism in north-central Connecticut: in, Joesten, R., and Quarrier, S.S., eds., Guidebook for 

Field- trips in Connecticut and South Central Massachusetts, New 

England Intercollegiate Geological Conference, 74th Annual Meeting, p. 

173- 190. 

SUMMARY: Descriptions of the Talcott, Holyoke, and Hampden basalts are 

presented and include internal structures, contact relations, flow 

directions, and petrography, including pegmatite segregations. 

Field stops are: Manitook Mtn. (Suffield), Farmington River Gorge 

(Tariffville), Talcott Mtn. State Park, Cooks Gap (Plainville), and 

Rock Ridge Park (Hartford). 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Section: measured sections (basalt) 

Mise: basalt flow directions 

504 A GRAY, NORMAN H., 1983, Pillows in the Talcott basalt of north and 

central Connecticut: Geological Society of America, Abstracts with 

Programs, v. 15, p. 122. 

SUMMARY: Distribution and morphology of pillowed sequences and associated 

massive flows within the 30- to 50-meter thick Talcott basalt 

reflect the distribution of ponded water created by the·basalt flows 

themselves. 

KEYWORDS: basalt 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 163 

505 P : GREENMAN, D.W., 1955, Ground water resources of Bucks County, Pennsylvania: Pennsylvania Geological Survey, Bulletin W-11, 66 p. 

SUMMARY: Water chemistry and quality and the character of the Stockton, 

Lockatong, and Brunswick Formations are presented. The Stockton Fm. 

is the most reliable water source; however, high Ca, Mg, and sulfate 

are locally present. The Lockatong is a poor aquifer, and water is 

moderately hard. The Brunswick Fm., which occupies more·than 1/3 of 

the county, is a moderate water supplier of generally good quality. 

KEYWORDS: general geology 

hydrology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks County 

MAPS: Geol: [1:62,500] 

Mise: well locations 

DATA: Chern. (type of data): water (Stockton, Lockatong, Brunswick Fms.) 

Plots: well: depth, yield 

506 P GREGORY, G.E., 1971, Route 84 road cut in New Britain, Connecticut, 

producing wide variety of mineral specimens: Rocks and Minerals, v. 

46, p. 156-158. 

SUMMARY: A road cut on the east side of the New Haven Traprock Quarry No. 2 

exposes a 4-inch to 18-inch sulfide vein in diabase. Sulfides and 

secondary minerals include: chalcopyrite, arsenopyrite, covellite, 

azurite, bornite, and chrysocolla. Vugs of zeolites occur in the 

diabase. Relative quantities of the sulfide minerals within the 

vein are not noted. 

KEYWORDS: economic geology 

copper 

diabase 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connectict 

DATA: Photos: outcrop 
Page 164 

507 P : GREGORY, GARDINER, 1965, Minerals in the New Jersey traprocks: Rocks 

and Minerals, v. 40, p. 725-728. 

SUMMARY: A brief review is given of the zeolite minerals occurring in the 

Watchung Mountains. 

KEYWORDS: mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: chabazite, prehnite 

508 p GREGORY, J.T., 1957, Significance of fossil vertebrates for correlation of late Triassic continental deposits of North America: International Geological Congress Report, 20th Session, Mexico City, Sect. 

2, p. 7-25. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

509 P : GRISWOLD, L.S., 1893, A basic dike in the Connecticut Triassic: 

Museum of Comparative Zoology Bulletin, v. 16, p. 239-242. 

KEYWORDS: diabase 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

510 A GROW, J.A., KLITGORD, K.D., AND HUTCHINSON, D.R., 1983, U.S. east 

coast offshore Mesozoic basins: Geological Society of America, 

Abstracts with Programs, v. 15, p. 122. 

SUMMARY: Recoynized major offshore basins are from north to south - Georges 

Bank Basin, Baltimore Canyon Trough, Carolina Trough, and Blake 

Plateau Trough, with respective sedimentary deposit maximum thickness of 7, 13, 11, and 12 kilometers. Evaporites formed during the 

transition from rifting to sea-floor spreading. 

KEYWORDS: buried basins 

economic ~eology 

salt 

GEOGRAPHIC AREA: Regional 
Page 165 

511 p GROW, JOHN A., 1981, Structure of the Atlantic margin of the United 

States: in, Bally, A.W., and others, eds., Geology of Passive 

Continental Margins, American Association of Petroleum Geologists, 

Education Course Note, Series No. 19, p. (3)1-(3)41. 

SUMMARY: Seismic, magnetic, and gravity data are used to delineate the 

structure and stratigraphy.of the Triassic and Jurassic deposits within offshore basins. These basins are: Blake Plateau Basin, 

Baltimore Canyon Trough, Carolina Trough, and Georges Bank Basin. 

Evaporite deposits are present in the two troughs. 

KEYWORDS: buried basins 

geophysics 

stratigraphy 

GEOGRAPHIC AREA: Regional 

512 T : GRUBBS, DONALD K., 1969, Weathering of diabase: Ph.D. Thesis, University of Pittsburgh, 106 p. 

KEYWORDS: diabase 

mineralogy 

GEOGRAPHIC AREA: Regional 

513 p GUILLOU, ROBERT B., AND SCHMIDT, ROBERT G., 1960, Correlation of aeroradioactivity data and areal geology: U.S. Geological Survey Professional Paper 400B, p. B117-B119. 

SUMMARY: Aeroradioactivity profiles in the Bealeton area correlate with geologic units and delineate the contacts between diabase and sedimentary rock. Diabase yields lower values (counts per second) than the 

sediments. 

KEYWORDS: geophysics 

aeroradioactivity 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: aeroradioactivity profiles 
Page 166 

514 A GUNTER, K.D., AND KELLY, W.M., 1978, Paleomagnetism and oxide 

mineralogy of the Lower Jurassic Holyoke basalt: American Geophysical 

Union, Transactions, v. 59, p. 271. 

SUMMARY: While the lower two-thirds of a 64-meter traverse are consistent 

with published lower Jurassic data, the upper third contains a 180° 

declination reversal characterized by a rising magnetic moment. The 

magnetic oxide phase is titanomagnetic with low-temperature 

maghemite altered to Fe-Ti oxide. No correlation between mineralogy 

and the magnetic parameters was observed. 

KEYWORDS: ~eophysics 

paleomagnetism 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

515 T : GUTMANN, J.T., 1965, The petrology of the Holyoke diabase, Mt. Holyoke 

Quadrangle, Massachusetts: Bachelor's Thesis, Amherst College, 63 p. 

KEYWORDS: petrology 

diabase 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampshire Co., Mt. Holyoke 

Quad. 

H 

516 M: HAENI, F.P., 1976, Contour map of the bedrock surface, Meriden 

Quadrangle, Connecticut: U.S. Geological Survey, Map MF-661a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 
Page 167 

517 p HAlLWOOD, E.A., AND MITCHELL, J.G., 1971, Paleomagnetic and radiometric dating results from Jurassic intrusions in South Morocco: Geophysical Journal of the Royal Astronomical Society, v. 24, p. 351-364. 

SUMMARY: In southern Morocco, the Foum-Zguid (quartz-dolerite) dike, the Draa 

Valley dolerite sills, and Central Atlas gabbroic and alkalic bodies 

yield similar pole positions at 61°S, 71°E, A(95) = 14° •• The former 

two, originally considered Paleozoic, give radiometric ages in the 

Jurassic (181-187 m.y.) - the Central Atlas units are Mesozoic. It 

is concluded that this widespread Jurassic igneous episode was in 

response to break-up of Pangaea in the Mesozoic. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Morocco 

MAPS: Geol: sketch 

DATA: Plots: pole plots, NRM 

518 p HAJI-VASSILIOU, A., AND PUFFER, J.H., 1975, A macrocrystalline 

attapulgite-palygorskite occurrence in calcite veins: American 

Mineralogist, v. 60, p. 328-330. 

SUMMARY: An unusual occurrence of this clay mineral is reported from the 

Brunswick Fm. near Limerick, six miles east of Pottstown, Pa. The 

fibrous clay occurs within calcite veins associated with a local 

shear zone. 

KEYWORDS: mineralogy 

sediments 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery Co., Phoenixville 

Quad. 

DATA: Chern. (type of data): major oxide 

519 P : HALLAM, A., 1971, Mesozoic geology and the opening of the North 

Atlantic: Journal of Geology, v. 79, no. 2, p. 129-157. 

SUMMARY: Investigations of the Mesozoic geology of the North Atlantic indicate that continental movement initiated in the Jurassic; evidence 

is provided by faunal history, igneous episodes, and collapse of the 

Mediterranean carbonate platform. The evolutionary history of 

rifting in the area is further discussed. A continental fit along 

the Quiet Magnetic Zone is preferred. 

KEYWORDS: tectonics 

GEOGRAPHIC AREA: Regional 
520 p 

Page 168 

HAMAGUCHI, HIROSHI, AND OTHERS, 1961, Values for trace elements in G-1 

and W-1 with neutron activation analysis: Geochimica et Cosmochimica 

Acta, v. 23, p. 296-299. 

SUMMARY: The Centerville, Virginia, diabase standard yields the following 

values in parts per million: Sc 34.3, Cu 120, As 2.2, Sb 0.95, La 

27, Au 0.0049, U 0.28. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

DATA: Chern. (type of data): diabase (trace) 

521 p HAMILTON, ROBERT M., BEHRENDT, J.C., AND ACKERMANN, H.D., 1983, Land 

multichannel seismic-reflection evidence for tectonic features near 

Charleston, South Carolina: in, Gohn, G.S., ed., Studies Related to 

the Charleston, South Carolin~ Earthquake of 1886- Tectonics and 

Seismicity, U.S. Geological Survey Professional Paper 1313, p. I1-I17. 

SUMMARY: Triassic and younger-aged faults and a buried Triassic basin are 

delineated by seismic data. The spatial and dynamic relationships 

of these faults are discussed. 

KEYWORDS: buried basins 

tectonics 

GEOGRAPHIC AREA: South Carolina 

MAPS: Geophys: seismic profiles 

522 p HAND, B.M., WESSEL, J.M., AND HAYES, M.O., 1969, Antidunes in the 

Mount Toby Conglomerate (Triassic), Massachusetts: Journal of 

Sedimentary Petrology, v. 39, p. 1310-1316. 

SUMMARY: An exposure near Sunderland reveals a series of 19 antidunes that 

migrated in an upstream direction. Dimensions of the dunes and 

hydrodynamic calculations indicate a paleoslope of 3°, water 

velocity of 100 em/sec, and water depth of 1.6 em. This is 

compatible with sheetwash along an alluvial fan. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts, Franklin Co., Mt. Toby Quad. 

DATA: Photos: outcrop 

Plots: stream dynamics 
523 M 

Page 169 

HANDMAN, E.H., 1973, Depth to bedrock, Windsor Locks Quadrangle, 

Connecticut: U.S. Geological Survey, Map MF-450b. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 

524 M HANDMAN, E.H., AND RYDER, R.B., 1973, Contour map of the bedrock 

surface, Avon Quadrangle, Connecticut: U.S. Geological Survey, Map 

MF-514a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 

525 T HANDY, W.A., 1976, Depositional history and diagenesis of lacustrine 

and fluvial sedimentary rocks of the Turners Falls and Mount Toby 

transition, north-central Massachusetts: M.S. Thesis, University of 

Massachusetts, 115 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Massachusetts 

526 

527 p 

Intentionally blank. 

HANSHAW, P.M., AND BARNETT, P.R., 1960, Possible use of boron, 

chromium, and nickel content in correlating Triassic igneous rocks in 

Connecticut: U.S. Geological Survey Professional Paper 400B, p. 

B170-B172. 

SUMMARY: The Talcott, Holyoke, and Hampden basalts were studied. The extrusives contain more boron than the intrusives. The Holyoke contains 

one-half and one-tenth the chromium content of the Hampden and 

Talcott basalts, respectively. The Holyoke also contains less 

nickel than the other units. The results are suggested to aid in 

basalt correlation and recognition. 

KEYWORDS: basalt 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

DATA: Chern. {no. of data): 

Chern. {type of data): 

{37 samples) 

B, Ni, Cr ppm 
Page 170 

528 M HANSHAW, PENELOPE M., 1968, ~edrock Geology of the Meriden Quadrangle: 

U.S. Geological Survey, Geologic Quadrangle Map GQ-738. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co., New Haven Co. 

MAPS: Geol: [1:24,000] 

529 p HARDER, E.C., 1910, Structure and or1g1n of the magnetite deposits 

near Dillsburg, York County, Pennsylvania: Economic Geology, v. 5, p. 

599-622. 

SUMMARY: The local geology and the underground plans of several of the mines 

are described. Magnetite ore occurs beneath the relatively flatlying, near-surface diabase and replaces calcareous sediments. The 

ore is attributed to the cooling diabase magma with iron preferring 

replacement of calcareous sediment. Feldspar, pyrite, and garnet 

are accessories. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Dillsburg Quad. 

MAPS: Section: mine plans 

530 T HARDING, A.G., 1975, The stratiyraphic analysis and significance of 

the Late Triassic to Upper Lower Jurassic rocks of the Western High 

Atlas Mountains in southwest Morocco: M.S. Thesis, University of 

South Carolina, 66 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Morocco 
531 A 

Page 171 

HARDING, ANDREW, AND BROWN, R.H., 1975, Structural controls over 

thickness and facies distribution in a Late Triassic-Early Jurassic 

carbonate surface - red bed sequence in Southwestern Morocco, and its 

relationship to the opening of the Atlantic: Geological Society of 

America, Abstracts with Programs, v. 7, p. 1099-1100. 

SUMMARY: The Liassic rocks consist of a shallow-water carbonate platform 

(west) which passes east into an evaporitic (sulfate) and fluvial, 

clastic, red bed sequence. Their juxtaposition is attributed to 

active growth faulting. A postrifting, regional subsidence ~vent 

produced the Liassic transgression and its carbonate facies. 

KEYWORDS: sedimentation 

tectonics 

GEOGRAPHIC AREA: Morocco 

532 p HARGRAVES, R.B., AND YOUNG, W.M., 1969, Source of stable remanent 

maynetism in Lambertville diabase: American Journal of Science, v. 

267, p. 1161-1177. 

SUMMARY: Measurements of natural, thermal, and saturation remanent magnetism and their stabilities were conducted using plagioclase, pyroxene, 

and oxide separates. Stable remanence is found to be associated 

with submicroscopic magnetite particles (.004%) within plagioclase. 

KEYWORDS: geophysics 

magnetism 

paleomagnetism 

diabase 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: photomicrographs 

533 A 

Plots: demagnetization, saturation vs. temp. 

HARRINGTON, JOHN W., 1947, A perched Triassic trough on the west wall 

of the Durham Triassic Basin: Elisha Mitchell Scientific Society, 

Journal, v. 63, p. 102-103. 

SUMMARY: A Triassic outlier at Eastwood Lake northeast of Chapel Hill lies 

above the main basin floor to the east and is separated from it by a 

platform of Carolina slate volcanics representing the floor of 

deposition of the outlier. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Durham Basin, North Carolina, Orange Co. 
Page 172 

534 T: HARRINGTON, JOHN W., 1948, The west border of the Durham Triassic 

Basin: Ph.D. Thesis, University of North Carolina, 106 p. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

535 PM: HARRINGTON, JOHN w., 1951, Structural analysis of the west border of 

the Durham Triassic Basin: Geological Society of America, Bulletin, 

v. 62, p. 149-158. 

SUMMARY: Multiple-surface analysis of saprolite indicates that the basin did 

not extend much beyond its present border. 1800 feet of sediments 

have been eroded since faulting occurred. The basin-crystalline 

contact zone is divided into three structural zones, and the 

structural history of the basin is discussed. 

KEYWORDS: structure 

general geology 

faults 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

MAPS: Geol: west side of Durham basin [1:126,720] 

DATA: Plots: average strike lines superposed over border linears 

536 T HARRIS, N.B., 1974, Geology and magnetics at the eastern end of the 

Holyoke Range, Belchertown, Massachusetts: Senior Thesis, Amherst 

College, 92 p. 

KEYWORDS: general geology ~eophysics 

magnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampshire Co. 

537 M HARTSHORN, JOSEPH, AND KOTEFF, CARL, 1967, Geology of the Springfield 

South Quadrangle: U.S. Geological Survey, Geologic Quadrangle Map 

GQ-678. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Connecticut, Hampden Co. 

(Mass.), Tolland Co. (Conn.) 

MAPS: Geol: [1:24,000] 
Page 173 

538 p HAWES, G.W., 1881, On the mineralogical composition of the normal 

Mesozoic diabase upon the Atlantic border: U.S. Natural Museum 

Proceedings, v. 4, p. 129-134. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Regional 

539 p HAWES, GEORGE W., 1875, On diabantite, a chlorite occurring in the 

trap of the Connecticut Valley: American Journal of Science and Arts, 

3rd Series, v. 9, p. 454-457. 

SUMMARY: The chemical and optical properties of this radiated, foliated 

chlorite are presented. The mineral occurs within large amygdules 

in basalt at Farmington Hills and is attributed to primary magmatic 

vapors. 

KEYWORDS: mineralogy 

basalt 

GEOGRAPHIC AREA: Hartford Hasin, Connecticut 

DATA: Chern. (type of data): major oxide 

540 P : HAWES, GEORGE W., 1875, The trap rocks of the Connecticut Valley: 

American Journal of Science and Arts, 3rd Series, v. 9, p. 185-192. 

SUMMARY: Chemical analyses and petrography indicate that an anhydrous 

dolerite and a chloritic, hydrous diabase occur in the region. 

Samples include rock from Mt. Holyoke, West Rock, and Lake 

Saltonstall. Acquisition of hydrous phases is attributed to 

alteration. 

KEYWORDS: geochemistry 

basalt 

GEOGRAPHIC AREA: Hartford Hasin, Connecticut 

DATA: Chern. (type of data): major oxide 
Page 174 

541 p HAWKES, H.E., WEDOW, H., AND BALSLEY, J.R., 1953, Geologic investigation of the Boyertown magnetite deposits in Pennsylvania: U.S. 

Geological Survey Bulletin 995-D, p. 135-149. 

SUMMARY: This Cornwall-type deposit was investigated by aeroma9netics and 

drill core. Iron ore occurs within Cambro-Ordovician limestone 

adjacent to diabase and just below the Triassic sediments. Drill 

core and geophysics indicate downdip continuation of the ore beyond 

the mining operations. Two large magnetic anomalies, interpreted as 

possible ore bodies, occur in the vicinity. 

KEYWORDS: economic geology 

iron 

geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks Co., Boyertown Quad. 

MAPS: Geol: local 

Section: drill core logs, mine section 

Geophys: ground magnetic contour maps (local) 

542 P HAWKINS, A.C., 1928, Halite and glauberite cavities in the Triassic 

rocks of Central New Jersey: American Journal of Science, 5th Series, 

v. 16, p. 361-362. 

SUMMARY: A detailed description is given of the locations and occurrences of 

halite cavities in red shale and glauberite replaced by calcite or 

occurring with barite at localities near New Brunswick and Black 

Wells Mills, New Jersey. 

KEYWORDS: mineralogy 

sediments 

economic geology barite 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Middlesex Co. 

543 p HAWKINS, A.C., 1933, Glauberite crystals from West Paterson, New 

Jersey: American Mineralogist, v. 18, p. 273-276. 

SUMMARY: Glauberite occurs with gypsum in large cavities in the basalt. Its 

formation is attributed to the action of groundwater present during 

the Pleistocene glacial period. Crystal forms are discussed. 

KEYWORDS: mineralogy 

basalt 

zeolites 

GEOGRAPHIC AREA:. Newark Basin, New Jersey, Passaic Co. 
Page 175 

544 P : HAWKINS, A.C., 1945, Old copper mines at New Brunswick, New Jersey: 

Rocks and Minerals, v. 20, p. 207-209. 

SUMMARY: The mine workings of the New Brunswick and Raritan Mines and the 

localities of copper and barite mineralization are briefly 

described. 

KEYWORDS: economic geology 

copper 

barite 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Middlesex Co. 

545 p HAWKINS, A.C., AND WHITLOCK, H.P., 1933, Minerals of the trap rock 

quarries of Paterson, New Jersey: 16th International Geological 

Congress, Guidebook 9, p. 128-139. 

SUMMARY: The geologic setting of the Watchung basalts, a list of their 

primary and secondary minerals, and a discussion on the origin of 

the zeolites are presented. The latter outlines previous work in 

the area as well as other zeolite provinces. A comprehensive 

reference list is provided. 

KEYWORDS: mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Passaic Co. 

546 P : HAWKINS, ALFRED C., 1936, Calcite twins from North Plainfield, New 

Jersey: Rocks and Minerals, v. 21, p. 809-811. 

SUMMARY: The crystallography of twinned calcite occurring in fault breccia in 

the Somerset basalt quarry between North Plainfield and Watchung is 

described. 

KEYWORDS: mineralogy 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey,,Sommerset County 

547 A: HAWKINS, ALFRED C., 1940, Major faultiny in the Triassic of New 

Jersey: Geological Society of America, Bulletin, v. 51, p. 1994-1995. 

SUMMARY: The geometry of the Hopewell Fault and its relationships to Sourland 

Mountain and sharp flexure in the shales are briefly described. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 176 

548 p HAWKINS, ALFRED CARY, 1914, Lockatong Formation of the Triassic of New 

Jersey and Pennsylvania: New York Academy of Science, Annals, v. 23, 

p. 145-176. 

SUMMARY: The formation is shown to represent central basin deposits that owe 

their iron to primary depositional processes and that intertongue 

with the Brunswick and Stockton Formations. Joints and faults were 

developed after diabase intrusion and contain brookite, ilmenite, 

analcite, and barite. The paleontology and petrography of the 

formation are outlined. 

KEYWORDS: general geology 

paleontology 

sedimentation 

structure 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 

MAPS: Geol: sketch 

Section: local columnar sections (2) 

549 A HAY, W.W., AND BARRON, E.J., 1981, Triassic-Liassic paleoclimatology 

and sedimentation in proto-Atlantic rifts: Geological Society of 

America, Abstracts with Programs, v. 13, no. 7, p. 470. 

SUMMARY: Deposition in the rift basins reflects a paleoclimate which became 

more arid with time. Rifts developed close to a boundary between 

subtropical and arid climates, so that local relief resulted in arid 

climates in the basins with greatest relative, local relief. 

KEYWORDS: climate 

GEOGRAPHIC AREA: Regional 

550 p HAY, W.W., BEHENSKY, J.F., JR., BARRON, E.J., AND SLOAN, J.L., III, 

1982, Late Triassic-Liassic paleoclimatology of the proto-central 

North Atlantic rift system: Palaeography, Palaeoclimatology, 

Palaeoecology, v. 40, p. 13-30. 

SUMMARY: Sedimentology and paleontology elucidate the climatic character 

of the rift basins during the early Mesozoic. Aridity increased 

northward and with time (i.e., Triassic to Liassic). Global 

climate is reviewed for this time period. Topography strongly 

influenced climate during deposition in the rift basfns. 

KEYWORDS: climate 

GEOGRAPHIC AREA: Regional 
Page 177 

551 p HAYATSU, A., 1979, K-Ar isochron age of the North Mountain basalt, 

Nova Scotia: Canadian Journal of Earth Sciences, v. 16, p. 973-975. 

SUMMARY: The North Mountain Basalt of the southern shore of the Bay of Fundy 

yields an isochron of 191 m.y. The K-Ar technique is discussed. 

KEYWORDS: geophysics 

radiometric age 

K/Ar dating 

basalt 

GEOGRAPHIC AREA: Nova Scotia 

DATA: Chern. (type of data): K-Ar 

552 F HAYES, A.O., 1933, Geologic features from the Watchung Mountains to 

Sandy Hook: 16th International Geological Congress, Guidebook 9, p. 

45-52. 

SUMMARY: This is a brief description of the general features of the New 

Jersey Triassic east of the Watchung Mountains and includes descriptions of the Triassic-Coastal Plain unconformity and the nature of 

fossil tracks. 

KEYWORDS: general geology 

paleontology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: [1:937,500] 

553 P : HAYES, W.H., 1949, The Bridgewater Copper Mine from the collector's 

standpoint: Rocks and Minerals, v. 24, p. 27-29. 

SUMMARY: The native copper and secondary copper minerals occurring at the 

mine dumps and workings are described. The mine is located along 

the SW slope of the First Watchung Mtn., three miles north of 

Somerville. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Somerset Co., Bound Brook Quad. 

DATA: Photos: specimens 
Page 178 

554 P : HAZEN, R.M., AND HAZEN, M.H., 1980, American geological literature, 

1669 to 1850: Stroudsbur~, Penn., Dowden, Hutchinson and Ross, 431 p. 

KEYWORDS: bibliography 

GEOGRAPHIC AREA: Regional 

555 T HAZLETT, J.M., 1978, Petrology and provenance of the Triassic limestone conglomerate in the vicinity of Leesburg, Virginia: M.S. 

Thesis, George Washington University, 100 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co. 

556 p HEALD, MILTON T., 1956, Cementation of Triassic arkoses in Connecticut 

and Massachusetts: Geological Society of America, Bulletin, v. 67, p. 

1133-1154. 

SUMMARY: The arkoses contain secondary feldspar and little secondary quartz; 

calcite and laumontite occur; albite forms overgrowths on detrital 

K-spar and plagioclase. Near intrusives, albite fills pores and 

replaces primary minerals. The petrography of arkoses along the 

border faults and adjacent to diabase is discussed. Cementation is 

attributed to igneous solutions. 

KEYWORDS: sedimentation 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Connecticut, Massachusetts 

MAPS: Geol: regional sketch 

DATA: Photos: photomicrographs 

Plots: mineral composition 

557 P HEILPRIN, ANGELO, 1884, On a remarkable exposure of columnar trap near 

Orange, New Jersey: Philadelphia Academy of Science, Proceedings, v. 

36, p. 318-320. 

SUMMARY: The trap columns of the O'Rourke Quarry are described and attributed 

to cooling phenomena. A sketch is provided. 

KEYWORDS: structure 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Essex Co. 
558 p HEINRICH, OSWALD J., 1879, The Mesozoic Formation of Virginia: 

American Institute of Mining (and Metallurgical) Engineers, 

Transactions, v. 6, p. 227-274. 

Page 179 

SUMMARY: The geographic setting of the Mesozoic basins is outlined. Emphasis 

is placed upon the stratigraphy of the Richmond Basin and its coal 

seams. Fossils are briefly described. The quality of the coal is 

discussed. 

KEYWORDS: general ~eology 

economic geology 

coal 

GEOGRAPHIC AREA: Richmond Basin, Virginia 

MAPS: Section: Midlothian coal mine column and cross section (regional) 

559 T HEINRICH, SILVIA M., 1980, Chemistry and mineralogy of the Holyoke 

basalt at East Mountain, Massachusetts: Honors Thesis, Department of 

Geology, University of Massachusetts, 47 p. 

KEYWORDS: mineralogy 

geochemistry 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampden Co., Mt. Tom Quad. 

560 A HEITZMAN, THOMAS, FEICK, K., AND REID, J.B., JR., 1979, The petrology 

and mode of emplacement of the Holyoke diabase, Long Mountain, 

Massachusetts: Geological Society of America, Abstracts with Programs, v. 11, p. 16. 

SUMMARY: The 500-foot lava sheet evolved as a single lava lake or as an epi- sodically filled lake of constant composition. Grain size increases 

from top to bottom, augite phenocrysts show constant Wo 35 En 47 Fs 

18 with two internal trends near the center, plagioclase is An 75, 

olivine is not present, and REE patterns are constant with light REE 

enrichment. 

KEYWORDS: petrology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
561 M 

Page 180 

HENDERSON, J.R., ANDREASON, G.E., AND PETTY, A.J., 1966, Aeromagnetic 

map of northern New Jersey and adjacent parts of New York and Pennsylvania: U.S. Geological Survey, Map GP-562. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:125,000] 

562 M HENDERSON, J.R., CHANDLER, E.J., AND OTHERS, 1962, Aeromagnetic map of 

the Ramsey Quadrangle, Passaic and Bergen Counties, New Jersey, and 

Rockland County, New York: U.S. Geological Survey, Map GP-344. 

KEYWORDS: geophysics 

aeromaynetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 

MAPS: Geophys: aeromagnetism [1:31,680] 

563 M HENDERSON, J.R., CHANDLER, E.J., AND OTHERS, 1963, Aeromagnetic map of 

parts of the Paterson and Orange Quadrangles, Essex, Passaic, and 

Bergen Counties, New Jersey: U.S. Geological Survey, Map GP-345. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 

564 M HENDERSON, J.R., TYSON, N., AND OTHERS, 1958, Aeromagnetic map of the 

Bernardsville and part of the Bound Brook Quadrangles, Middlesex, 

Somerset, and Morris Counties, New Jersey: U.S. Geological Survey, 

Map GP-174. 

KEYWORDS: geophysics 

aeromaynetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 
Page 181 

565 M HENDERSON, J.R., TYSON, N., AND OTHERS, 1958, Aeromagnetic map of the 

Boonton Quadrangle, Morris County, New Jersey: U.S. Geological 

Survey, Map GP-167. 

KEYWORDS: geophysics 

aeromaynetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 

566 M HENDERSON, J.R., TYSON, N., AND OTHERS, 1958, Aeromagnetic map of the 

Caldwell Quadrangle, Essex and Morris Counties, New Jersey: U.S. 

Geological Survey, Map GP-172. 

KEYWORDS: yeophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 

567 M HENDERSON, J.R., TYSON, N., AND OTHERS, 1958, Aeromagnetic map of the 

Chatham and parts of the Roselle and Plainfield Quadrangles, Morris, 

Essex, and Somerset Counties, New Jersey: U.S. Geological Survey, Map 

GP-175. 

KEYWORDS: geophysics 

aeromaynetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 

568 M HENDERSON, J.R., TYSON, N., AND OTHERS, 1958, Aeromagnetic map of the 

Gladstone Quadrangle, Somerset, Morris, and Hunterdon Counties, New 

Jersey: U.S. Geological Survey, Map GP-173. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 
Page 182 

569 M HENDERSON, J.R., TYSON, N., AND OTHERS, 1958, Aeromagnetic map of the 

Mendham Quadrangle, Morris County, New Jersey: U.S. Geological 

Survey, Map GP-170. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 

570 M HENDERSON, J.R., TYSON, N., AND OTHERS, 1958, Aeromagnetic map of the 

Morristown Quadrangle, Morris County, New Jersey: U.S. Geological 

Survey, Map GP-171. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 

571 M HENDERSON, J.R., TYSON, N., AND OTHERS, 1958, Aeromagnetic map of the 

Pompton Plains Quadrangle, Morris, Passaic and Essex Counties, New 

Jersey: U.S. Geological Survey, Map GP-168. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 

572 M HENDERSON, J.R., TYSON, N., AND OTHERS, 1958, Aeromagnetic map of the 

Wanaque Quadrangle, Passaic and Bergen Counties, New Jersey: U.S. 

Geological Survey, Map GP-164. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 
Page 183 

573 p HENIKA, WILLIAMS., AND JOHNSON, STANLEY S., 1980, Aeroradiometric 

contour pattern and rock distribution in the Danville 15-minute 

quadrangle: in, Price, v., Jr., and others, eds., Carolina 

Geological SoCiety Field Trip Guidebook, 1980, Trip VI, 5 p. 

SUMMARY: A groundwater model for uranium deposition is proposed in which 

diabase and microbreccia dikes pond groundwater up gradient (SE), 

thus allowing for precipitation of uraniuim, originally leached from 

basin-adjacent granitic rocks. North-south linear anomalies along 

the basin margins and symmetrical about diabase or micro- breccia 

dikes may reflect such a groundwater uranium depositional system. 

KEYWORDS: yeophysics 

aeroradioactivity 

economic geology 

uranium 

GEOGRAPHIC AREA: Danville Basin, Virginia 

MAPS: Geophys: aeroradiometric 

574 PM: HENIKA, WILLIAMS., AND THAYER, PAUL A., 1977, Geology of the Blairs, 

Mount Hermon, Danville, and Ringgold Quadrangles, Virginia: Virginia Division of Mineral Resources, Publication 2, 45 p. 

SUMMARY: The general geology and structure of part of the basin are presented. The Triassic is represented by the Dry Fork Fm. which contains gray sandstones, mudstones, and conglomerates, the latter 

along basin margins. The sandstones are arkosic. Petrographic data 

are presented. Diabase dikes trend N 5°W. The Chatham Fault bounds 

the basin to the NW with minor faults also present alon9 the SE 

margin. Beds dip to the NW. 

KEYWORDS: ~eneral ~eology 

structure 

faults 

GEOGRAPHIC AREA: Danville Basin, Virginia, Pittsylvania Co. 

MAPS: Geol: [1:24,000] 

Section: Dry Fork Fm. 

DATA: Photos: outcrops and photomicrographs Plots: sandstone composition 
575 M 

Page 184 

HENIKA, WILLIAMS., AND THAYER, PAUL A., 1983, Geologic map of the 

Spring Garden Quadrangle, Virginia: Virginia Division of Mineral 

Resources Publication 48. 

SUMMARY: A portion of the Danville Triassic basin covers the central part of 

the quadrangle. Paul Thayer mapped the Triassic rocks. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Danville Basin, Virginia, Pittsylvania County, Spring Garden 

Quadrangle 

MAPS: Geol: [1:24,000] 

576 T HENTZ, T.F., 1981, The sedimentology of the Culpeper Group lake beds 

(Lower Jurassic) at Thoroughfare Gap, Virginia: M.S. Thesis, University of Kansas. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

577 A HENTZ, TUCKER F., 1982, Sedimentology and structure of Lower Jurassic 

lake beds in the Culpeper Basin at Thoroughfare Gap, Virginia: Geological Society of America, Abstracts with Programs, v. 14, p. 24-25. 

SUMMARY: Gray lacustrine strata along the western margin define shore-terrace 

(sediment agitation by waves), lateral-slope (deposition from suspension, slumping,~ and proximal gravity flows), and basin-plain 

(deposition from distal turbidity currents) environments. Morphology of dips and unconformities within several cyclic sequences 

suggest synsedimentary tilting. Source sediment was from the Blue 

Ridge (W) and previously deposited Triassic sediments and basalts 

(E) • 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
578 p 

Page 185 

HERMES, 0. DON, 1964, A quantitative petrographic study of dolerite in 

the Deep River Basin, North Carolina: American Mineralogist, v. 49, 

p. 1718-1729. 

SUMMARY: Modal compositions, optical properties, and chemistry of about 50 

diabase dikes indicate that olivine, which averages 15-20% and as 

much as 54%, is present in greater amounts than dikes from other 

basins- even the olivine-rich zone of the Pali~ades Sill. Dike 

centers contain more olivine and Mg than their margins. 

KEYdORDS: mineralogy 

petrology 

diabase 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

DATA: Chern. (type of data): major oxide 

Plots: mineral percentages; Mg olivine vs. Mg augite 

579 A HERRICK, D.C., ROSE, A.W., AND DEINES, P., 1972, Mineralogical and 

isotopic studies of the Cornwall iron deposit, Pennsylvania: 

Geological Society of America, Abstracts with Programs, v. 4, p. 

534-535. 

SUMMARY: Deposition temperatures for magnetite were determined from the 

mineral assemblages and delta-0(18) to be 450°C with FS2(1o-21) 

and F02(1o-5). 0(18) values for calcite in and out of the ore 

zone show little variation. Those for magnetite and the water in 

equilibrium with ore are unusually heavy. Diffusion may have played 

an important role. 

KEYWORDS: economic geology 

iron 

geochemistry 

isotopes 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

580 T HERRICK, D.M., 1973, An isotopic study of the magnetite-chalcopyrite 

deposit at Cornwall, Pennsylvania: Ph.D. Thesis, Pennsylvania State 

University, 95 p. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania, Lebanon Co., 

Lebanon Quad. 
581 p 

Page 186 

HERSEY, J.B., 1941, Gravity and magnetic studies along the PaleozoicTriassic contact in Eastern Pennsylvania: American Geophysical Union, 

Transactions, v. 22, p. 350-353. 

SUMMARY: A discussion is given of magnetic and gravity surveying techniques 

used in studying the northern basin border between the Delaware 

River and Quakertown. It is recognized that trap-rock yields high 

values and can therefore be mapped accurately. (The brief report is 

preliminary in nature.) 

KEYWORDS: geophysics 

magnetism 

gravity 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geophys: magnetic traverses (trap-sediment contact) 

582 PM: HERZ, NORMAN, 1955, The bedrock geology of the Glastonbury Quadrangle: 

Connecticut Geological and Natural History Survey, Quadrangle Report 

No. 5, 24 p. 

SUMMARY: The southeast area of the basin contains poorly sorted arkosic 

sandstone (Portland Fm.) that is in fault contact with the metamorphics. Outcrops are sparse. The border fault is recognized by 

the mylonitized metamorphics. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co., Glastonburg Quad. 

MAPS: Geol: (1) [1:31,680] 

583 p HERZOG, L.F., AND PINSON, W.H., JR., 1955, The Sr and Rb contents of 

granite G-1 and the diabase W-1: Geochimica et Cosmochimica Acta, v. 

8, p. 295-298. 

SUMMARY: Analytical techniques are discussed, and the diabase standard is 

found to contain 28.5 ppm Rb and 117 ppm Sr. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax Co., Manassas Quad. 
Page 187 

584 p HESS, H.H., 1941, Pyroxenes of common mafic magmas, Part 1: American 

Mineralogist, v. 26, p. 515-535. 

SUMMARY: The evolution of pyroxenes in basaltic magmas is discussed, including the relationship between augite and pigeonite and the inversion 

of pigeonite to hypersthene. The evolution of pyroxene within the 

Palisades diabase is outlined. 

KEYWORDS: diabase 

petrology 

mineralogy 

GEOGRAPHIC AREA: Newark Hasin, New Jersey 

585 p HICKOCK, W.O., IV, 1933, The iron ore deposits at Cornwall, Pennsylvania: Economic Geology, v. 28, no. 3, p. 193-255. 

SUMMARY: This extensive treatise discusses the local geology of the magnetite 

deposit replacing limestone adjacent to diabase. Emphasis is placed 

on the mineralogy and petrography of the magnetite and other ore and 

gangue minerals. Mineral zoning within the ore body is outlined. A 

lengthy discussion of theories concerning the ore genesis is given. 

The author proposes direct magmatic emanation from the diabase. 

KEYWORDS: economic geology 

iron 

mineralogy 

petrology 

GEOGRAPHIC AREA: Gettysburg Hasin, Newark Hasin, Pennsylvania, Lebanon 

Co., Lebanon Quad. 

MAPS: Geol: sketch map 

Section: mineral zoning 

DATA: Chern. (type of data): ore, limestone 

Photos: magnetite 

586 p HICKOCK, W.O., AND WILLARD, H., 1933, Dinosaur foot tracks near 

Yocumtown, York County, Pennsylvania: Pennsylvania Academy of 

Science, Proceedings, v. 7, p. 55-58. 

SUMMARY: Two dinosaur species are attributed to tracks found in the central 

Gettysburg Fm. Correlation of the Gettysburg Fm. with the Upper 

series in Connecticut is made on similar Conn. fossils. A sketch of 

the tracks is provided. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York 
587 T 

Page 188 

HINTHORNE, J.R., 1967, Bedrock and engineering geology of the Mt. Tom 

area, Massachusetts: M.S. Thesis, University of Massachusetts, 126 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

588 p HITCHCOCK, C.H., 1890, The use of the terms Laurentian and Newark in 

geological treatises: American Geologist, v. 5, p. 197-202. 

SUMMARY: The term Newark is considered not appropriate because the Newark 

area does not represent the Triassic system in its fullest development, the term Connecticut sandstone pre-dates the Newark term, and 

the Connecticut Valley Triassic is shown to have been the model with 

which other basin areas were correlated. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Regional 

589 p HITCHCOCK, C.H., 1895, The Connecticut Sandstone Group: Science, v. 

1, no. 3, p. 74-77. 

SUMMARY: Ar~uments are proposed in favor of the term Connecticut and not 

Newark as a regional name for the Mesozoic system of the Atlantic 

Coast. (Refer to Redfield, 1856; B.S. Lyman; and C.H. Hitchcock.} 

KEYWORDS: ~eneral geology 

GEOGRAPHIC AREA: Regional 

590 p HITCHCOCK, EDWARD, 1823, A sketch of the geology, mineralogy, and 

scenery of the regions contiguous to the River Connecticut; with a 

geological map and drawings of organic remains; and occasional 

botanical notices, Part II, Simple minerals: American Journal of 

Science, v. 6, p. 201-236. 

SUMMARY: This is a descriptive account of the mineral veins within the 

Hartford Basin. Mines or veins discussed include: Southampton Lead 

Mine, Berlin (lead-zinc-barite), Granby (Simsbury Mines}, and 

Greenfield (copper). 

KEYWORDS: economic geology 

copper 

lead 

zinc 

barite 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts 
Page 189 

591 p HITCHCOCK, EDWARD, 1835, Economical geology: in, Hitchcock, E., 

Report on the Geoloyy, Mineralogy, Botany, and Zoology of Massachusetts, p. 68-74. 

SUMMARY: This is a brief descriptive account of the mineralogy and workings 

of the sphalerite-galena-barite-quartz veins at Southampton, 

Northampton, Westhampton, Whately, Hatfield, Leverett, and 

Greenfield (copper). The Greenfield vein is specifically indicated 

as occurriny within basalt and red sandstone (Triassic). Other 

occurrences are localized along the basin margins and host country 

rock is only specified for the Southhampton and Leverett veins: 

granite and schist (pre-Triassic). 

KEYWORDS: economic geology 

lead 

zinc 

barite 

copper 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

592 P : HITCHCOCK, EDWARD, 1841, Final report on the geology of Massachusetts: 

Amherst, Massachusetts, Commonwealth of Massachusetts, 831 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

593 p HITCHCOCK, EDWARD, 1858, Ichnology of New England, a report on the 

sandstone rif the Connecticut Valley, especially its fossil footmarks: 

W. White, Boston, Massachusetts, 220 p. 

SUMMARY: This extensive treatise describes in detail the fossil species 

(footprints) in the Hartford Basin. Sixty plates of sketches are 

included. A discussion of the analysis and morphology of footprints 

is presented. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut~ Massachusetts 

594 P: HOADLEY, C.W., 1917, A mineralogical pilgrimage through Connecticut: 

American Mineralogist, v. 2, p. 99-100. 

KEYWORDS: mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 190 

595 P : HOADLEY, c.w., 1935, Anthracite coal found in West Hartford, Connecticut: Rocks and Minerals, v. 10, p. 123. 

KEYWORDS: economic geology 

coal 

GEOGRAPHIC AREA: Hartford Hasin, Connecticut 

596 p HOHHS, WILLIAM HERHERT, 1901, The Newark system of the Pomperaug 

Valley, Connecticut: U.S. Geological Survey Annual Report No. 21, pt. 

3, p. 7-160. 

SUMMARY: The geology, structure, and paleontology of the basin are outlined. 

Hasalt flows occupy the central area with arkosic sandstone to the 

west and shale to the east. A complex joint and fault system is 

discussed with the basin bordered on all sides by faults against 

schist and gneiss. Heds dip eastward. 

KEYWORDS: general geology paleontology 

petrology 

basalt 

GEOGRAPHIC AREA: Pomperaug Hasin, Connecticut 

MAPS: Geol: general, structure 

DATA: Chern. (type of data): basalt 

597 P : HOHBS, WILLIAM HERBERT, 1902, Former extent of the Newark System: 

Geological Society of America, Hulletin, v. 13, p. 139-148. 

SUMMARY: This discussion summarizes the local basin vs. broad terrain or 

connected basin controversy. The author supports the latter with 

evidence from erosional considerations, fault continuity, and 

gradational sediment changes. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Regional 
Page 191 

598 p HODYCH, J.P., AND HAYATSU, A., 1980, K-Ar isochron age and paleomagnetism of diabase along the Trans-Avalon Aeromagnetic Lineament - evidence of Late Triassic riftin~ in Newfoundland: Canadian Journal 

of Earth Sciences, v. 17, p. 491-499. 

SUMMARY: The aeromagnetic lineament (caused by diabase) trends NE across the 

Avalon Peninsula in East Newfoundland and is genetically related to 

the Shelburne dike and North Mountain basalt of Nova Scotia by 

similar age (201 m.y. Avalon dike) and paleomagnetic pole position 

(87.8°E, 72.9°N). 

KEYWORDS: geophysics 

radiometric age 

isotopes 

K/Ar dating 

paleomagnetism 

GEOGRAPHIC AREA: Maritime 

MAPS: Geol: regional 

Geophys: aeromagnetics 

599 T: HOLLAND, W.T., 1930, A geophysical and geological survey of the Deep 

River Triassic Basin: M.S. Thesis, University of North Carolina. 

KEYWORDS: geophysics 

structure 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

600 A HOLMES, J.A., 1889, Conglomerate and pebble beds of the Triassic and 

Potomac formations in North Carolina: Elisha Mitchell Scientific 

Society, Journal, v. 6, p. 148. 

SUMMARY: Conglomerates near Morrisville and on the Nevie River in Granville 

County were deposited in a westerly direction when the area to the 

east was higher than it is today. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Durham Basin, North Carolina 
601 T 

Page 192 

HOOKS, w. GARY, 1953, The clay minerals and iron oxide minerals of the 

Triassic "red beds" of the Durham Basin, North Carolina: M.S. Thesis, 

University of North Carolina. 

KEYWORDS: mineralogy 

sediments 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

602 p HOOKS, W. GARY, AND INGRAM, ROY L., 1955, The clay minerals and the 

iron oxide minerals of the Triassic "Red Beds" of the Durham Basin, 

North Carolina: American Journal of Science, v. 253, p. 19-25. 

SUMMARY: X-ray diffraction of red and non-red sediments indicate that illite 

and montmorillonoids are most abundant, followed by kaolin and 

vermiculite. The minerals were derived from deep erosion of red 

lateritic soils with the former two coming from the partially 

weathered (C-horizon) and the latter two, the more leached (A, B 

horizons). 

KEYWORDS: sedimentation 

mineralogy 

sediments 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

603 T: HOPE, R.C., 1975, A paleobotanical analysis of the Sanford Triassic 

Basin, North Carolina: Ph.D. Thesis, University of South Carolina. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Sanford Basin, North Carolina 

604 p HOPE, R.C., AND PATTERSON, O.F., III, 1969, Triassic flora from the 

Deep River Basin, North Carolina: North Carolina Division of Mineral 

Resources, Special Publication No. 2, 23 p. 

SUMMARY: Plant species are described from a red-brown siltstone 400 feet 

above the base of the Pekin Fm. at a clay pit at Gulf. The 

formation is correlated with the Monitor Butte Mb. of the Chinle Fm. 

Ten plates of photographs are presented. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina, Chatham Co. 
Page 193 

605 p HORNSTEIN, S., AND SINGER, H., 1970, Granton Quarry, Bergen County, 

New Jersey: New York Paleontological Society Notes, v. 1, no. 5, p. 

3-5. 

SUMMARY: The nature and origin of the Lockatong Fm. is discussed briefly, and 

a partial list of the fish, reptile, and branchiopod fossils is 

given with references. A discussion of the sediment cycles of the 

Lockatong Fm. is taken from Van Houten (1964). 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Bergen Co. 

606 P : HOSKINS, D.M., 1976, Triassic-Jurassic dike extended: Pennsylvania 

Geology, v. 7, no. 3, p. 6-8. 

SUMMARY: This is a brief note on the observation of the continuation of a 

diabase dike from the Gettysburg area into the Valley and Ridge 

Province. The thin dike turns northeastward an additional 40 

degrees after crossing the Susquehanna River and may correspond to a 

Landsat image linear. 

KEYWORDS: 9eneral geology 

GEOGRAPHIC AREA: North of Harrisburg, Pennsylvania 

607 P : HOTCHKISS, J., 1884, The copper ores of Loudoun County, Virginia: The 

Virginias, v. 5, p. 192. 

SUMMARY: This is a brief description of the copper-silver workings at Goose 

Creek. Geology is not emphasized. Several shallow shafts within 

red shale follow veins of copper carbonate yielding 20-80 percent 

copper and 20 ounces per ton silver. The mine is operated by Frank 

N. Wise of Eagle Mining Co., Leesburg, Va. 

KEYWORDS: economic geology 

copper 

silver 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co., Leesburg Quad. 
Page 194 

608 p HOTZ, PRESTON E., 1949, Petrology and habit of some diabase sheets in 

Southeastern Pennsylvania: U.S. Geological Survey Open-File Report 

30, 81 p. 

SUMMARY: Detailed descriptions of the mineralogy and petrography are given of 

the diabase and granophyre. Alkalies and silica increase into the 

granophyre, while iron attains a maximum in the transition zone. 

Crystal differentiation accounts for the granophyre. A late-stage, 

residual, iron-rich volatile phase may escape to form magnetite 

replacement deposits or may remain in the magma to form gas cavities. 

KEYWORDS: diabase 

mineralogy 

petrology 

geochemistry 

granophyre 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

MAPS: Geol: sketches 

Mise: Dillsburg drill-hole log 

DATA: Chern. (type of data}: major oxide 

Photos: photomicrographs 

Plots: pyroxene composition; mineral % vs. depth; Na20-K20-Ca0 

609 PM: HOTZ, PRESTON E., 1950, Diamond-drill exploration of the Dillsburg 

magnetite deposits, York County, Pennsylvania: U.S. Geological Survey 

Bulletin 969-A, 27 p. 

SUMMARY: Magnetite replacement bodies of a limestone conglomerate occur 

between two nearly flat-lying diabase sheets. 15 drill holes 

provide detailed stratigraphic relationships. Gangue minerals 

·include diopside, chlorite, garnet, and pyrite; and ore grades from 

20 to 40 percent metallic iron in veins or pods ranging up to 30 

feet thick, but usually only several feet. The deposits are 

attributed to emanations from the diabase magma. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Dillsburg Quad. 

MAPS: Geol: [1:63,360] 

Section: drill cores and cross sections (6 plates) 

DATA: Chern. (type of data): Fe ore grades 
Page 195 

610 P : HOTZ, PRESTON E., 1952, Form of diabase sheets in Southeastern 

Pennsylvania: American Journal of Science, v. 250, p. 375-388. 

SUMMARY: Diamond drilling and gravity surveys support the fact that the 

elliptical diabase intrusions are essentially nearly flat lying and 

saucer-shaped below their enclosed sediment cover. Descriptions of 

the forms of the Dillsburg, Cornwall, Quakertown, and Boyertown 

sheets are given. Many similarities are shown to exist with the 

Karoo intrusives of South Africa. 

KEYWORDS: general geology 

structure 

diabase 

economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

MAPS: Geol: Dillsburg, Cornwall, Quakertown, Boyertown areas 

Section: cross sections of the above 

611 P HOTZ, PRESTON ENSLOW, 1953, Petrology of granophyre in diabase near 

Dillsburg, Pennsylvania: Geological Society of America, Bulletin, v. 

64, p. 675-704. 

SUMMARY: Chemistry and petrography indicate that alkalies and silica increase 

from diabase to granophyre, with iron increasing and maximizing in 

the transitional zone. Crystal fractionation resulted in granophyre 

generation and the escape of iron-rich volatiles into the sediment 

producing magnetite deposits. A drill core through the diabase 

below the magnetite deposits was studied. 

KEYWORDS: diabase 

geochemistry 

petrology 

granophyre 

economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Dillsburg Quad. 

MAPS: Geol: N. York County, Dillsburg area 

Section: drill core 

DATA: Chern. (type of data): major oxide, norms; trace 

Photos: photomicrographs (sketches) 

Plots: pyroxene composition and optics; mineralogy vs. depth; 

FeO-MgO-(K-Na); K20-Na20-Ca0 
Page 196 

612 A HOULIK, C.W., JR., AND LAIRD, H.S., 1977, Mesozoic wrench tectonics 

and the development of the northern Newark Basin: Geological Society 

of America, Abstracts with Programs, v. 9, p. 275. 

SUMMARY: Late Triassic Ramapo Fault movement initiated deposition. The fault 

zone is intruded by diabase - some of which reached the surface 

(e.g., Ladentown, N.Y.) -that yields K/Ar dates of 156+7 and 

149+7 m.y. Sinistral transform faulting accompanied dip-slip 

movement. Northern termination of the Newark Basin is attributed to 

Paleozoic "synthetic" shears. 

KEYWORDS: structure 

faults 

geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 

613 p HOVEY, E.O., 1889, Observations on some of the trap ridges of the East 

Haven-Branford Region: American Journal of Science, 3rd Series, v. 

38, p. 361-383. 

SUMMARY: The structure and relationship of the Pond Rock (basalt) and 

associated traps to the adjacent sandstone are discussed. The range 

is considered to be intrusive and later than local faulting, in some 

disagreement with the previous work of W.M. Davis. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Hartfo~d Basin, Connecticut, New Haven, Branford 

MAPS: Geol: [1:36,000] 

614 P : HOVEY, E.O., 1890, The oil well of Southbury, Connecticut: Scientific 

American, v. 62, p. 275. 

SUMMARY: An oil well drilled in the Pomperaug basin has little oil or gas 

potential, but minor silver and gold mineralization is reported. 

KEYWORDS: economic geology 

oil 

silver 

gold 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut 
Page 197 

615 p HOVEY, EDMUND OTIS, 1897, A relatively acid dike in the Connecitcut 

Triassic area: American Journal of Science, 4th Series, v. 3, p. 287-

292. 

SUMMARY: A group of dikes exposed in Triassic sandstone at New Haven is shown 

to be a keratophyre. Albite phenocrysts with finer orthoclase 

groundmass constitutes nearly 90% with chlorite and calcite present. Chemical analysis indicates 60% (Si02), 20.5% (Al203), 2.6% 

(GaO), and 9.6% (Na20). The occurrence of a non-diabase dike is 

considered anomalous for the Triassic Newark system. 

KEYWORDS: granophyre 

petrology 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven Co., Branford 

Quadrangle 

MAPS: Geol: (1) New Haven area 

Section: outcrop 

616 P HUBERT, J.F., AND HYDE, M.G., 1982, Sheet-flow deposits of graded beds 

and mudstones on an alluvial sandflat-playa system: Upper Triassic 

Blomidon redbeds, St. Mary's Bay, Nova Scotia: Sedimentology, v. 29, 

p. 457-474. 

SUMMARY: Flash floods from mountains to the south of the basin area deposited 

sand, silt and clay as graded beds on sand flats, and sheet flows 

were deposited on more distal playas. The Blomidon is represented 

by 32, 5-meter fining upward cycles generated by this alluvial fansandflat-playa system. Conditions were subtropical at 25°N paleolatitude during the late Triassic. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia 

MAPS: Section: stratigraphic columns and logs 

DATA: Photos: outcrops 

Plots: lithofacies frequency distributions; paleocurrents 
617 A 

Page 198 

HUBERT, J.F., DOWDALL, W.L., AND FRANZ, A.J., 1979, Late Triassic 

paleogeography of red beds in the Hartford Basin and Pomperaug outlier, Connecticut and Massachusetts: Geological Society of America, 

Abstracts with Pro~rams, v. 11, p. 17. 

SUMMARY: The 2000 meters of New Haven Fm. red arkose (Conn.) and Sugarloaf 

Fm. arkose (Mass.) represent fluvial rocks deposited over a 9 m.y. 

period in a tropical, semi-arid rift valley at 15°N paleolatitude 

from Early Norian through Rhaetian. Three facies occur: escarpment 

aluvial fans, ephemeral braided rivers, and a meander belt. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts 

618 A HUBERT, J.F., HYDE, M.G., AND MERTZ, K.A., 1981, Sandflat-playa model: 

The Upper Triassic Blomidon redbeds of Nova Scotia: Geological 

Society of America, Abstracts with Programs, v. 17, p. 477. 

SUMMARY: This formation, 400-m thick, accumulated by sheet flows over 

alluvial fans onto sandflats and mudflows (1-cm thick) onto distal 

playas. Ten- to 15-cm gypsum crusts formed by discharge of groundwater brine rich in Na-S04-Cl. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Maritime, Nova Scotia 

619 p HUBERT, J.F., REED, A.A., AND CAREY, P.J., 1976, Paleogeography of the 

East Berlin Formation, Newark Group, Connecticut Valley: American 

Journal of Science, v. 276, p. 1183-1207. 

SUMMARY: This formation, between the Holyoke and Hampden Basalts, is composed 

of alluvial fan sandstones-conglomerates; cross-bedded, red, channel 

sandstones; and alkaline lake. gray and black shales. The climate 

was tropical with large lakes (4700 km2)), and sediments were 

derived from the east. Paleowinds, from the northwest, are 

interpreted. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Section: stratigraphic columns 

Mise: paleocurrents, paleoenvironments 

DATA: Photos: outcrops 
Page 199 

620 F HUHERT, J.F., REED, A.A., DOWDALL, W.L., AND GILCHRIST, J.M., 1978, 

Guide to the redbeds of Central Connecticut: 1978 Field Trip, Eastern 

Section of S.E.P.M.: University of Massachusetts, Department of 

Geology and Geography, Contribution No. 32, 129 p. 

SUMMARY: This guidebook covers the Portland Arkose, New Haven Arkose, the 

Shuttle Meadow and East Berlin Formations, and the basalt flows. 

Discussions of the paleoenvironments of deposition, the broad versus 

isolated terrane theories, and diagenesis are presented. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Pomperaug Basin, Connecticut 

MAPS: Section: stratigraphic columns, cross sections 

Mise: paleocurrents, stream morphology 

DATA: 

621 p 

Photos: outcrops 

Plots: paleocurrents, petrography 

HUBERT, JOHN F., 1977, Paleosol caliche in the New Haven Arkose, 

Connecticut: Record of semiaridity in Late Triassic - Early Jurassic 

time: Geology, v. 5, p. 302-304. 

SUMMARY: (This is a shorter equivalent of the author's 1978 publication.) 

Comparison is made with Quaternary profiles, and the petrography of 

the calcareous nodules is discussed. The climate is considered 

semi-arid with slow sedimentation rate and 100 to 500 mm of 

rainfall. Calcite often replaces 50 to 70 percent of the fine 

sediment. 

KEYWORDS: sedimentation 

climate 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Section: profile of local stratigra~hy 

Mise: samples 

DATA: Photos: outcrops 
Page 200 

622 p HUBERT, JOHN F., 1978, Paleosol caliche in the New Haven Arkose, 

Newark Group, Connecticut: Paleogeography, Paleoclimatology, and 

Paleoecology, v. 24, p. 151-168. 

SUMMARY: Studies of the calcareous caliche horizons of the arkose provide 

evidence suggestiny that the climate (Late Triassic to Early 

Jurassic) was semi-arid in transition between humid to the south and 

arid to the northeast. Possible sources of the calcium are 

discussed including plant concentration and weathering of carbonates west of the basin. 

KEYWORDS: sedimentation 

climate 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Section: local stratigraphic profiles 

Mise: caliche localities 

DATA: Plots: outcrops, photomicrographs 

623 A HUBERT, JOHN F., AND GILCHRIST, JAMES M., 1984, Brownstones of the 

Connecticut Valley: Geological Society of America, Abstracts with 

Programs, v. 16, no. 1, p. 25. 

SUMMARY: Sedimentary features of fluvial sandstones in the Hartford Basin, 

Connecticut, are discussed. 

KEYWORDS: sedimentation 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

624 P : HUBERT, JOHN F., AND MERTZ, KARL A., 1980, Eolian dune field of Late 

lriassic aye, Fundy Basin, Nova Scotia: Geology, v. 8, p. 516-519. 

SUMMARY: Large dunes within the Wolfville Fm. developed by winds from the NE 

and place the basin area at a subtropical paleolatitude of 25°N. 

The dunes occur on the northern side of the basin and are overlain 

by red-bed evaporites of the Blomidon Fm. It is proposed that, 

during Late Triassic time, the climate in the Newark Supergroup was 

one of increasing aridity from south to north. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Maritime 

MAPS: Section: measured (Wolfville Fm.); regional stratigraphy (Fundy Group) Mise: paleogeography 

DATA: Photos: outcrops 
625 A 

Page 201 

HUBERT, JOHN F., AND OTHERS, 1983, Upper Triassic alluvial fans, 

braided rivers and eolian dunes of the Wolfville redbeds, Fundy Rift 

Valley, Nova Scotia: Geological Society of America, Abstracts with 

Programs, v. 15, p. 121. 

SUMMARY: The Wolfville Fm. (375 meters) formed at 20°N paleolatitude, with 

drainage from the highlands coalescing into braided rivers producing 

4- to 10-meter fining upward cycles (described). Beds of eolian 

sandstone are interbedded with alluvial-fan and braided-river red 

beds on the north side of the valley. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Maritime 

626 A HUBERT, JOHN F., AND REED, ALAN A., 1976, Lacustrine cycles in the 

East 8erlin Formation, Newark Group, Connecticut Valley: Geological 

Society of America, Abstracts with Programs, v. 8, p. 202. 

SUMMARY: The Lower Jurassic Formation is composed of 2- to 7-meter symmetrical cycles representing lacustrine conditions with black-pyritic 

shale and gray mudstones (containing mud rocks, analcime, gypsum, 

and halite) representing deeper-anaerobic, and shallow conditions 

respectively. Paleowinds were from the northwest. Diagenesis is 

represented by replacement and addition of Mg and Na (dolomite, 

albite). 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

627 p HUBERT, JOHN F., AND REED, ALAN A., 1978, Red-bed diagenesis in the 

East Berlin Formation, Newark Group, Connecticut Valley: Journal of 

Sedimentary Petrology, v. 48, p. 175-184. 

SUMMARY: The formation, an Early Jurassic fluvial and lacustrine sequence, 

contains authigenic hematite pigment produced by: conversion of 

detrital limonite stains to hematite by aging, intrastratal solution of Fe-silicates, detrital magnetite oxidation, and replacement of Fe-silicates by dolomite cement. 

KEYWORDS: sedimentation 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Section: stratigraphic Mise: geologic sketch map 

DATA: Photos: photomicroyraphs 

Plots: mineral composition 
628 F 

Page 202 

HUBERT, JOHN F., GILCHRIST, JAMES M., AND REED, ALAN A., 1982, 

Jurassic redbeds of the Connecticut Valley: (1) Brownstones of the 

Portland Formation; and (2) Playa-Playa lake-Oligomictic lake model 

for parts of the East Berlin, Shuttle Meadow, and Portland Formations: 

in, Joesten, R., and Quarrier, S.S., eds., Guidebook for Fieldtrips Tn Connecticut and South Central Massachusetts, New England Intercollegiate Geological Conf., 74th Meeting, Storrs, Conn., p. 103-141. 

SUMMARY: Sedimentary structures, petrography, deposition, and paleontology 

are discussed for the Portland Formation (Buckland Quarry, Manchester, Conn.). The playa and oligomictic models are outlined. 

Control for repeated cycles in these two environments was long-term 

precipitation fluctuation. A laminite rock consisting of alternating light dolomite and kerogen-bearing black mud characterizes the 

oligomictic lakes. Field stops include: Talcott Basalt, Shuttle 

Meadow Fm., East Berlin Fm, and Portland Fm. 

KEYWORDS: sedimentation 

general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts 

MAPS: Geol: sketches 

Section: measures sections 

DATA: Photos: outcrops, photomicrographs 

629 A 

Plots: paleocurrents; sandstone composition 

HUBERT, JOHN F., REED, ALAN A., AND CAREY, PATRICK J., 1975, Triassic 

winds of the Connecticut Valley: Geological Society of America, 

Abstracts with Programs, v. 7, p. 76-77. 

SUMMARY: The 200-meter East Berlin Fm. consists of dark, pyritic mudstone and 

dolomite (lacustrine), and red mudstones, sandstones, and white 

sandstones (fluvial). At its paleo 25°N latitude position, winds 

blew from the NW and N generating lake currents. The valley floor 

sloped towards the SW as evidenced by slump sheets and the position 

of gray mudstone. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 203 

630 P : HULBERT, E.M., 1897, Copper mining in Connecticut: Connecticut 

Quarterly, v. 3, p. 23-32. 

SUMMARY: This is a descriptive account of the history of mining at the 

Newgate Prison and Higley Mines (East Granby) and the Bristol Mines. 

Native copper, silver, and ·copper sulfides and carbonates occur. No 

detailed geologic descriptions are given. 

KEYWORDS: economic geology 

copper 

silver 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

631 p HUNT, T. STERRY, 1875, The Cornwall iron mine and some related 

deposits in Pennsylvania: American Institute of Mining Engineers, 

Transactions, v. 4, p. 319-325. 

SUMMARY: A discussion of the Cornwall, Boyertown, Dillsburg, and Wheatfield 

Cornwall-type deposits is given. Their size and general geologic 

character is briefly outlined. The deposits are not considered to 

be genetically related to the diabase, but are considered sedimentary and belonyiny to the Taconic rocks of the Valley and Ridge 

Province. 

KEYWORDS: economic geology iron 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

632 A HURTUBISE, D.O., 1983, Geochemistry and petrology of the Pomperaug 

Basin basalts, Connecticut: Geological Society of America, Abstracts 

with Programs, v. 15, p. 91. 

SUMMARY: The basalts are of the quartz-normative high-Fe203 type (Weigand, 

et al., 1970), plot along the Palisades fractionation trend, closely 

resemble (chemistry) the Second Watchung (Newark) and Holyoke (Hartford) basalts, and are interpreted as'time-and rock- stratigraphic 

equivalents of these. The sampled unit is that of "t3" (Scott, 

1974) and is not correlated with the Talcott basalt as suggested by 

Scott (1974). 

KEYWORDS: general yeology 

basalt 

petrology 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut 
Page 204 

633 T HURTUBISE, DONLON, 1979, Geochemistry and petrology of the Talcott, 

Holyoke, and Hampden Basalts, southern Hartford Basin, Connecticut: 

M.S. Thesis, Rutgers University, 70 p. 

KEYWORDS: geochemistry 

petrology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

634 p HUSCH, JONATHAN M., STURGIS, DOUGLASS., AND BAMBRICK, THOMAS C., 

1984, Mesozoic diabases from west-central New Jersey: major and trace 

element chemistry of whole rock samples: Northeastern Geology, v. 6, 

p. 51-63. 

SUMMARY: Rock suites from seven Mesozoic diabase bodies from west-central New 

Jersey were analyzed for major and trace element chemistry. Most 

analyses are similar to the high-Ti quartz normative tholeiites of 

Weigand and Ragland (1970). Overall, the fractionation patterns 

follow the classic Palisades trend. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): 25 diabase analyses, major and trace elements 

635 M : HYDE, R.C., AND COLTON, R.B., 1973, Depth to bedrock, Broad Brook 

Quadrangle, Connecticut: U.S. Geological Survey, Map MF-451g. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 
Page 205 

I 

636 p IDDINGS, JOSEPH P., 1886, The columnar structure in the igneous rock 

on Orange Mountain, New Jersey: American Journal of Science, 3rd 

Series, v. 31, p. 321-331. 

SUMMARY: The origin of the basaltic columns is attributed to slow cooling 

after solidification as evidenced by crystals cut by the joints. 

The geometry of the joint systems is discussed, and it is assumed 

that platy iointing near the upper surface of the flow results from 

a faster cooling rate. 

KEYWORDS: structure 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Essex Co. 

637 T lORIS, E.O., 1980, Geophysical investigation of diabase dikes in the 

Durham Triassic Basin and their hydrological significance: M.S. 

Thesis, North Carolina State University. 

KEYWORDS: hydrology 

geophysics 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

638 PM: INNERS, J.D., AND WILSHUSEN, J.P., 1978, Triassic-Jurassic diabase 

dike at Hellam, York County, Pennsylvania: Pennsylvania Geology, v. 

9, no. 2, p. 12-15. 

SUMMARY: A small diabase dike trending N 20°E to N 0 E occurs within CambroOrdovician rocks south of the basin. The dike was not recognized 

previously. Petrographic data are presented. 

KEYWORDS: general geology 

diabase 

petrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Columbia West 

Quad., Red Lion Quad. 

MAPS: Geol: [1:24,000] 

DATA: Photos: outcrop, photomicrograph 
Page 206 

639 p IRVING, E., AND BANKS, M.R., 1961, Paleomagnetic results from the 

Upper Triassic lavas of Massachusetts: Journal of Geophysical 

Research, v. 66, no. 6, p. 1935-1939. 

SUMMARY: Samples from the Granby and Holyoke lavas yield a pole position at 

55°N, 88°E, consistent with other U.S. Triassic measurements. Calculations require the removal of a "soft" magnetic component that 

results in variable directions. Specific locations of samples are 

provided. 

KEYWORDS: basalt 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

DATA: Plots: poles 

640 P : IRVING, JOHN DUER, 1899, Some contact phenomena of the Palisade 

diabase: School of Mines Quarterly, v. 20, p. 213-223. 

SUMMARY: The internal and external (contact) effects of the intrusion are 

considered with the former characterized by fining of grain size and 

increasing density from the center to the edge. The adjacent 

hornfels zones are described mineralogically. Andalusite on the 

upper contact confirms an intrusive emplacement. 

KEYWORDS: diabase 

mineralogy 

petroloyy 

metamorphism 

hornfels 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

641 T IRWIN, D.J., 1982, Sedimentology and petrology of the Jurassic 

Portland Formation, Hartford Basin: M.S. Thesis, University of 

Massachusetts. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
642 M 

Page 207 

IWAHASHI, TORU, AND HEIRONIMUS, T.L., 1978, Map showing LANDSAT 

imagery alignments in Fairfax County, Virginia: U.S. Geological 

Survey Open-File Report 78-525. 

KEYWORDS: geophysics 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: landsat [1:48,000] 

643 p 

J 

JANSA, L.F., AND WADE, J.A., 1975, Geology of the continental margin 

off Nova Scotia and Newfoundland: in, Vol. 2: Offshore Geology of 

Eastern Canada, Paper 74, v. 30, p.-s1-105. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Newfoundland (offshore), 

Canada 

644 p JANSA, L.F., BUJAK, J.P., AND WILLIAMS, G.L., 1980, Upper Triassic 

salt deposits of the Western North Atlantic: Canadian Journal of 

Earth Sciences, v. 17, no. 5, p. 547-559. 

SUMMARY: Halite (2054 meters) was discovered during drilling in the Carson 

Sub-basin, Eastern Grand Banks, Newfoundland, and is shown by palynology to be Upper Triassic. A model of the salt formation is 

developed and includes sea encroachment into the rift-related 

graben. Further tectonic implications are outlined. 

KEYWORDS: paleontology 

economic geology 

salt 

tectonics 

GEOGRAPHIC AREA: Maritime Province, Newfoundland (offshore) 

MAPS: Geol: N. Atlantic paleogeography 

Section: core log 
Page 208 

645 F: JENSEN, LYNDON R., 1975, Late Triassic redbeds, Kingsport area: 

Maritime Sediments, v. 11, no. 2, p. 77-81. 

SUMMARY: The stratigraphy of this area of Nova Scotia is described briefly 

and consists of a lower fluviatile unit (60-750 m), a central 

lacustrine and fluviatile unit (7-370 m), the North Mtn. Basalt, and 

an upper sandstone-limestone unit. Strata are folded into a SE 

plunging syncline within the half-graben. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia 

MAPS: Geol: Kingsport area 

Section: stratigraphic column 

Mise: block diagram 

DATA: Photos: outcrops 

646 p JOHNSON, DONALD H., 1950, A torbernite deposit near Stockton, 

Hunterdon County, New Jersey: U.S. Geological Survey, Trace Elements 

Memorandum Report 125, 2 p. 

SUMMARY: High radioactivity and torbernite occur in a 10-foot by 20-foot zone 

of limonite and manganese stained arkosic sandstone of the middle 

part of the Stockton Formation. The exposure is 0.7 miles NW of 

Stockton on the road to Raven Rock. Equivalent U ranges from 0.13 

to 0.34%, and chemical U ranges from 0.09 to 1.28%. 

KEYWORDS: economic geology 

uranium 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hunterdon Co., Stockton Quad. 

DATA: Chern. (type of data): U, Th 

647 F JOHNSON, HELGI, 1957, Trap rock aggregates in New Jersey: Geological 

Society of America, Guidebook for Fieldtrips, 1957, Field Trip No. 7, 

p. 42-45. 

SUMMARY: A brief review of the Watchung basalts and diabase is given with a 

field trip stop at the Summit, New Jersey basalt quarry. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Union Co., Roselle Quad. 

MAPS: Geol: geol. sketch map of diabase and basalt in Newark Basin, N.J. 
Page 209 

648 F JOHNSON, MEREDITH E., AND MCLAUGHLIN, DEAN B., 1957, Triassic 

formations in the Delaware Valley: Geological Society of America, 

Guidebook for Fieldtrips, 1957, Field Trip No. 2, 38 p. 

SUMMARY: The lithologic character, fossils, and relationships among the 

arkosic Stockton Formation, the argillaceous Lockatong Formation, 

and the red shale Brunswick Formation are outlined with specific 

reference to field trip stops along the Delaware River between 

Lambertville and Holland. A uranium occurrence in the Stockton is 

included. 

KEYWORDS: general geology 

paleontology 

economic geology 

uranium 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hunterdon Co. 

MAPS: Section: strat. sections 

Mise: field stops with road log 

649 M JOHNSON, STANLEY S., AND FROELICH, ALBERT J., 1982, Aeromagnetic contour map of the Culpeper Basin and vicinity, Virginia: Virginia Division of Mineral Resources Publication. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: aeromagnetism [1:125,000], 100 gammas 

650 PM: JOHNSON, STANLEY S., AND SWEET, PALMER C., 1969, Magnetic and gravity 

surveys of Albemarle and Fluvanna Counties, Virginia: Virginia Division of Mineral Resources, Report of Investigations 20, 10 p. 

SUMMARY: Bouguer gravity and total intensity magnetic surveys are superimposed upon the geology of the northern part of the Scottsville 

Basin in southern Albemarle County. No significant geophysical 

features are noted for the basin. Instrumentation techniques are 

outlined. 

KEYWORDS: general geology 

geophysics 

gravity 

magnetism 

GEOGRAPHIC AREA: Scottsville Basin, Virginia 

MAPS: Geol: [1:62,500] 

Geophys: gravity and magnetics [1:62,500] 
Page 210 

651 p JOHNSON, W.R., JR., AND STRALEY, H.W., III, 1935, An attempt to locate 

the boundaries of the Durham Triassic Basin with a magnetometer: American Geophysical Union, Transactions, 16th Annual Meeting, Part 1, 

p. 176-181. 

SUMMARY: A series of traverses across the basin indicates faulting on the NW 

border, distribution of fanglomerates, and possible faulting within 

the basin. The irreyularity of the basin floor and the occurrences 

of crystalline Paleozoic inliers is recognized. 

KEYWORDS: geophysics 

magnetism 

structure 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

MAPS: Geophys: magnetometer traverses 

652 PM: JOHNSTON, HERBERT E., 1966, Hydrology of the New Oxford Formation in 

Lancaster County, Pennsylvania: Pennsylvania Geological Survey, 

Bulletin W23, 80 p. 

SUMMARY: Groundwater is most abundant in coarser sandstones and conglomerates, is of the calcium-bicarbonate type,. and 80% of 349 wells 

have dissolved-solids contents less than 250 ppm. Water is dominantly soft to moderately hard. No relationship exists between well 

yield and depth. Yield, depth, pH, and hardness data are pro- vided. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lancaster Co. 

MAPS: Geol: [1:62,500] 

Section: well logs 

Mise: well locations 
Page 211 

653 p JOHNSTON, PAUL M., 1960, Ground water supplies in shale and sandstone 

in Fairfax, Loudoun, and Prince William Counties, Virginia: 4 U.S. 

Geological Survey Circular 424, 7 p. 

SUMMARY: Two wells drilled at the Dulle:s Int. Airport yielded between 330 and 

600 gallons per minute at depths up to 955 feet, much deeper than 

previously reported in the Triassic rocks of the area. Water is 

hard (533 to 500 ppm); but the abundance of water and the depth of 

the Triassic rocks suggest that they may be a significant·source of 

ground water. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

DATA: Chern. (type of data): water (2 holes, plus 10 previosly published) 

654 PM: JOHNSTON, PAUL M., 1962, Geology and ground water resources of the 

Fairfax Quadrangle, Virginia: U.S. Geological Survey Water-Supply 

Paper 1539L, 61 p. 

SUMMARY: A small area of Triassic Manassas sandstone occupies the NW corner 

of the area. The hydrology of the quad. primarily concerns the 

Paleozoic and older formations, but water chemistry and quality are 

described from two Triassic wells. The Triassic is considered a 

poor aquifer. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax Co. 

MAPS: Geo 1 : [ 1 :24, 000] 

655 M 

Mise: wells and springs 

JOHNSTON, R.H., 1978, Probable yields of wells in bedrock aquifers of 

Fairfax County, Virginia: U.S. Geological Survey Open-File Report 

78-267. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: water well yield [1:48,000] 
Page 212 

656 M JOHNSTON, R.H., AND LARSON, J.D., 1979, Principal sources of ground 

water in Fairfax County, Virginia: u.s. Geological Survey Open-File 

' Report 79-211. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: ground-water aquifer [1:48,000] 

657 M JOHNSTON, R.H., AND VAN ORIEL, J.N., 1979, Evaluation of potential 

yields of water wells in bedrock aquifers of Fairfax County, Virginia 

- a computer composite map: U.S. Geological Survey Open-File Report 

79-525. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: water well yield [1:48,000] 

658 p JOHNSTON, WALTER R., 1850, On the coal formation of central North 

Carolina: American Association for the Advancement of Science, Proceedings, v. 4, p. 274-275. 

SUMMARY: Several coal localities where coal has been worked are described 

briefly. The semi-bituminous coal at Haughton•s Mills along a 

tributary to the Deep River is four feet thick, has a specific 

gravity of 1.31, pnd its volatile and fixed carbon contents are 24% 

and 73%, respectfvely. An anthracite coal 6.5 mi SW of Horton•s 

Mills has a specific gravity of 1.55, and its volatile and carbon 

contents are 7% and 84%, respectively. 

KEYWORDS: economic geology 

coal 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

659 M: JONAS, A.I., AND STOSE, G.W., 1938, Geologic map of Frederick County: 

Maryland Geological Survey 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland, Frederick Co. 

MAPS: Geol : [ 1:62 ,500] 
Page 213 

660 PM: JONAS, ANNA I., 1917, The Precambrian and Triassic diabase in Eastern 

Pennsylvania: American Museum ,of Natural History, Bulletin, v. 37, p. 

173-181. 

SUMMARY: The field relations and lithologic character of Triassic and 

Precambrian diabase in the region are outlined. The two are 

distinguished by the alteration and pyrite content of the latter, 

and by the fact that the latter dikes do not cross into the Triassic 

region and are found only in the metamorphics north of the basin. 

KEYWORDS: ~eneral geology 

diabase 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery, Bucks, Lehigh 

MAPS: Geol: [1:62,500] 

661 PM: JONAS, ANNA I., AND STOSE, GEORGE W., 1926, New Holland Quadrangle: 

Pennsylvania Geological Survey, 4th Series, Atlas No. 178, 40 p. 

SUMMARY: The southern area of the basi~ is mapped and described. The 

Triassic rocks consist of (lower to upper): arkosic s.s., red 

congl., red shale (Gettysburg Formation), and conglomerate. Faults 

occur within the basin and form the borders of the basin tongue at 

Ephrata known as the Ephrata $yncline. Beds dip to the NW and are 

elsewhere in overlap contact with older rocks. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lancaster, Berks, Ephrata Quad., 

Terre Hi 11 Quad. 

MAPS: Geol: [1:62,500] 

662 PM: JONAS, ANNA I., AND STOSE, GEORGE W., 1930, Lancaster Quadrangle: 

Pennsylvania Geological Survey~ 4th Series, Atlas No. 168, 106 p. 

SUMMARY: The geology of the southern edge of the basin is included in the 

report and consists of the arkosic, basal New Oxford and the red, 

argillaceous Gettysburg Formations lying in overlap contact with 

Ordovician rocks to the south .• A conglomeratic member lies at the 

base of the Gettysburg Formation and achieves prominent relief in 

the area. The diabase is described. Beds dip to the NW at 35° 

(avg) and are not folded, but normal faults occur. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lancaster Co., Lebanon Co., 

Manheim Quad., Lititz Quad. 

MAPS: Geol: [1:62,500] 
663 T 

Page 214 

JONES, D.F., 1975, Stratigraphy, environments of deposition, 

petrology, age, and provenance of the basal red beds of the Argana 

Valley, Western High Atlas Mountains, Morocco: M.S. Thesis, New 

Mexico Institute of Mining Technology, 148 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Morocco 

664 p JONES, P.L., 1979, Hartford 1°X2° NTMS area, Connecticut, New Jersey, 

and New York: U.S. Department of Energy, National Uranium Resource 

Evaluation Program, Savannah River Laboratory, Aiken, South Carolina, 

GJBS-94, 70 p. 

SUMMARY: This work is a data release on the chemistry of ground and stream 

water and stream sediment samples for the southern Hartford Basin. 

Data include: groundwater (pH, well depth, U, Br, Cl, F, Mn, Na, 

and V), stream sediment (pH, U, Th, Hf, Al, Ce, Fe, Mn, Sc, Na, Ti, 

V, and REE 1 s), and stream water (pH, V, Al, Br, Cl, Dy, F, Mn, Na, 

and V). 

KEYWORDS: hydrology 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: [1:250,000] 

Mise: sample locations; U and Th distribution [1:250,000] 

DATA: Chern. (type of data): (see summary) 

665 A JUSTUS, PHILIPS., 1967, Evidence for volcanism or shallow intrusion 

in the Triassic Pekin Formation of the Deep River Basin, North 

Carolina: Elisha Mitchell Scientific Society, Journal, v. 83, p. 

176-177. 

SUMMARY: Amy~daloidal basalt, basaltic breccia, and vitrophyre occur at Gulf 

700 feet above the base of the Pekin Formation. The basalt contains augite, orthopyroxene, and zoned andesine with magnetite, 

apatite, and ~yrite. Field relations are difficult to determine, 

and the intrusive or extrusive origin is elusive. 

KEYWORDS: basalt 

mineralogy 

petrology 

GEOGRAPHIC AREA: Sanford Basin, North Carolina, Chatham Co., Goldston Quad. 
Page 215 

666 A JUSTUS, PHILIPS., 1967, Sequence of development of microscopic textures in diabase dikes of the Deep River Triassic Basin, North 

Carolina: Geological Society of America, Abstracts with Programs, 

Annual Meeting, p. 113. 

SUMMARY: Symmetrical textural development about dike centers for three dike 

types {based on olivine content) reveal: intergranular and intersertal textures develop independent of composition along chilled 

zones, and subophitic texture after intergranular and prior·to 

ophitic textures occur independent of composition. Subophitic and 

ophitic textures develop as a result of olivine modal variation: 

subophitic {less olivine). Textural types are outlined and may be 

used to delimit zones of equal cooling rate within intrusions (refer 

to Justus and Butler, 1966). 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

667 A JUSTUS, PHILIPS., AND BUTLER, J. ROBERT, 1966, Modal and textural 

zonation of diabase dikes in the Deep River Basin, North Carolina: 

Geological Society of America, Special Paper 101, p. 363. 

SUMMARY: Ten dikes consist of plagioclase (32-60%), clinopyroxene (6-42%), 

and olivine (2-58%), with modal symmetry about dike centers evident 

in most. Increasing olivine toward dike centers is attributed to 

flowage differentiation. Three dike groups, recognized according to 

olivine content, illustrate distinct textural development from contact to center. The most common (10-45% olivine) is: porphyriticintergranular-subophitic-ophitic from edge to center. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 
668 A 

Page 216 

JUSTUS, PHILIPS., AND WEIGAND, PETER W., 1971, Distribution of 

dolerite magma types and variation of dike-swarm pattern: clues to 

tectonic history of Appalachians in Early Mesozoic: Pennsylvania 

Academy of Science, Proceedings, v. 45, p. 202-203. 

SUMMARY: Four magma types are recognized: ol. norm., low-Ti qtz. norm., 

high-Ti qtz. norm., and high-Fe qtz. norm. The petrogenetic relations of these types are outlined in detail, and it is recognized 

that olivine norm. dikes predominate toward the south. Further 

discussion considers the tectonic/stress history with relation to 

magma emplacement. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Regional 

669 A JUSTUS, PHILIPS., THAYER, PAUL A., AND WEIGAND, PETER, 1970, Comparative geochemistry and petrology of diabase dikes in the North Carolina 

Triassic basins: Geological Society of America, Abstracts with 

Programs, v. 2, p. 223. 

SUMMARY: A review of the diabase chemistry-types is presented. High-alumina 

and alkali basalts are found in the Dan River Basin with most of the 

dikes being olivine tholeiites, with fewer micropegmatite- bearing 

tholeiites and a rare troctolite. Diabases differentiated at low 

pressure - the olivine member at decreasing oxygen fugacity and 

increasing iron. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: North Carolina 

DATA: Chern. (type of data): major oxide (averages) 

670 T JUSTUS, PHILIP STANLEY, 1966, Modal and textural zonation of diabase 

dikes, Deep River Basin, North Carolina: M.S. Thesis, University of 

North Carolina. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 
671 T 

Page 217 

K 

KAISERMAN, RONALD M., 1984, Lithologic controls on groundwater chemistry in uranium-bearing rocks of the southern Culpeper TriassicJurassic Basin, Virginia: M.S. Thesis, University of Virginia, 110 p. 

KEYWORDS: geochemistry 

hydrology 

economic geology 

uranium 

GEOGRAPHIC AREA: Culpeper Basin, Virgimia 

672 p KATO, F., 1891, Some of Bergen Hill's rare minerals: Mineralogists' 

Monthly, v. 6, no. 8, p. 85-89. 

SUMMARY: A brief review of the occurrence of rare minerals from Bergen and 

Weehawken is given and includes copper, chalcopyrite, galena, 

sphalerite, barite, byssolite, hyalite, diabantite, and titanite. 

KEYWORDS: basalt 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, New Je~sey, Hudson Co. 

673 T KATZ, S.B., 1983, Sedimentary features and soil-like fabrics in 

chemical cycles of the Lockatong Formation, Newark Supergroup (Late 

Triassic), New Jersey and Pennsylvania: M.S. Thesis, State University 

of New York, Stony Brook. 

SUMMARY: Detailed descriptions are given of sedimentary features and 

stratigraphy in the Lockaton~ Formation cycles. Soil-like 

sedimentary fabrics in massive mudstone units are described. 

Comparison to modern playa mwdflat environments suggest alternation 

of pluvial to arid conditions during deposition. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 
Page 218 

674 p KAYE, CLIFFORD A., 1983, Discovery of a Late Triassic basin north of 

Boston and some implications as to post-Paleozoic tectonics in Northeastern Massachusetts: American Journal of Science, v. 283, p. 1060-

1079. 

SUMMARY: A 6 km by 0.5 km NE-trending Triassic basin, partially faultbounded, occurs 17 km north of Boston at Peabody. Red conglomerate, 

arkose, and shale occur, the latter containing Late Triassic plant 

fossils. Other faults of similar orientation in the area are considered post-Paleozoic. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Massachusetts 

MAPS: Geol: sketch 

DATA: Photos: outcrops, fossils 

675 p KEEN, C.E., HALL, B.R., AND SULLIVAN, K.D., 1977, Mesozoic evolution 

of the Newfoundland Basin: Earth and Planetary Science Letters, v. 

37, p. 307-320. 

SUMMARY: Geophysical data from the basin indicate it formed by Cretaceous 

sea-floor spreading. Basalts from the Newfoundland Seamount chain 

show affinity with oceanic island basalts and not with mid-ocean 

ridge basalts. A tectonic reconstruction of the N. Atlantic from 

155-73 m.y. is presented. 

KEYWORDS: tectonics 

geophysics 

seismic profiles 

gravity 

magnetism 

GEOGRAPHIC AREA: Maritime Province, Newfoundland (offshore) 

MAPS: Geophys: magnetic, seismic, gravity profiles 

Mise: tectonic reconstruction 

DATA: Chern. (type of data): REE (basalt) 
Page 219 

676 PM: KEITH, ARTHUR, 1894, Description of the Harpers Ferry sheet (Virginia, 

Maryland, West Virginia): U.S. Geological Survey Atlas, Folio No. 10. 

SUMMARY: (Covers Triassic basin area west of 77°30' and north of 39°.) 

KEYWORDS: general geology 

bedrock geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: [1:125,000] 

677 p KEITH, M.L., CRUFT, E.F., AND DAHLBERG, E.G., 1967, Trace metals in 

stream sediments of southeastern Pennsylvania, Part I. Geochemical 

prospecting guide based on regional distribution of zinc, copper, 

nickel cobalt, chromium, and vanadium: Pennsylvania State University, 

Earth and Mineral Sciences Experiment Station, Bulletin 82, 14 p. 

SUMMARY: Statistical evaluation of the metals defines areas within the 

Triassic that contain enrichment. Enrichment of chromium, cobalt, 

and vanadium occurs in the Gettysburg area, which is underlain by 

Triassic and diabase sediments. Unlike this area, copper and nickel 

enrichment characterizes the region underlain by Triassic in Lebanon 

and Lancaster Counties and including the Cornwall and Morgantown 

magnetite deposits. 

KEYWORDS: economic yeology 

iron 

copper 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

MAPS: Mise: trace metal distribution {bar scale only) 
678 P : KEITH, N.S., 1906, The copper deposits of New Jersey: Mining 

Magazine, v. 13, p. 468-475. 

Page 220 

SUMMARY: Copper deposits within sediments adjacent to diabase are described. 

These are the Bound Brook, the Schuyler Mine (North Arlington, 

Bergen County), and the Pahaquarry Mine (Warren County), which is 

not apparently related to diabase. Copper sulfides and carbonates 

occur within shale and sandstone. Native copper is abundant below a 

depth of 700 feet at the Bound Brook deposit.' Gold and silver 

values are also noted for this deposit. Mine workings and history 

are emphasized. 

KEYWORDS: economic geology 

copper 

gold 

silver 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: mines 

679 P KELLER, JANE, AND HRAINARD, CHARLOTTE, 1940, Faulted phyllite east of 

Greenfield, Massachusetts: American Journal of Science, v. 238, p. 

354-365. 

SUMMARY: A narrow horst block of pre-Triassic phyllite occurs within the 

Mount Toby Conglomerate just inside the east border of the basin. 

Fault observations are outlined along the Connecticut River just 

north of French King Hridye. 

KEYWORDS: general geology 

structure · faults 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts, Franklin Co., Millers Falls 

Quad. 

MAPS: Geol: (sketch) French King Bridge area 
680 A 

Page 221 

KELLY, W.M., 1977, Alteration of oxide mineral phases in red beds and 

basalts in the Connecticut Rift Valley: American Geophysical Union, 

Transactions, v. 58, no. 6, p. 382. 

SUMMARY: In basalts, magnetite exhibit~ high temperature sub-solidus alteration to ilmenite or hematite/rutile. Hematite also develops in 

fractures. No detrital oxide minerals remain in the redbeds, all 

magnetite altering to hematite. The study was conducted to 

interpret the remnant magneti~ation and paleomagnetism of the rocks. 

KEYWORDS: sediments 

mineralogy 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

681 A KELLY, W.M., 1979, Magnetic minerals of the red beds of the northern 

Connecticut Valley - DRM or CRM?: American Geophysical Union, Transactions, v. 60, p. 815. 

SUMMARY: Hematite is the dominant magnetic oxide. Most of the hematite is 

altered magnetite or ilmenite. The grains are not detrital in 

origin. Hematite also occurs around iron-silicate grains. It is 

suggested thdt the red beds have acquired their magnetization 

after deposition. 

KEYWORDS: geophysics 

magnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

682 p KINDLE, CECIL H., 1944, A disco~ery of limestone in the Newark Series: 

Geological Review, City College Geological Society, New York, v. 4, 

no. 1. p. 3-4. 

SUMMARY: A small limestone bed is found in a railroad cut north of the 

Granton Quarry in Hudson County at North Bergen and indicates that 

the Lockatong Formation exists farther· east than originally 

described by Kummel (1897). Lake deposits are also evident in the 

quarry. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hudson Co. 
Page 222 

683 p KING, PHILIP B., 1961, Systematic pattern of Triassic dikes in the 

Appalachian region: U.S. Geological Survey Professional Paper 424-B, 

p. B93-B95. 

SUMMARY: It is recognized that diabase dikes, unlike the basin border faults, 

are discordant with pre-existing structure and foliation. The dikes 

trend NW to the southern, then N in the central, and finally NE in 

the northern Appalachians, indicating a rotating tensile stress 

field. 

KEYWORDS: structure 

tectonics 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: (regional) basins and dikes 

684 p KING, PHILIP B., 1971, Systematic pattern of Triassic dikes in the 

Appalachian region - second report: U.S. Geological Survey Professional Paper 750-D, p. D84-D88. 

SUMMARY: A systematic pattern is seen whereby the dikes trend NW to the 

south, N in the central, and NE in the northern Appalachians. Dikes 

terminate against the Brevard zone, and this is attributed to a 

greater depth to the mantle NW of the zone. 

KEYWORDS: tectonics 

structure 

diabase 

GEOGRAPHIC AREA: Regional 

MAPS: Mise: [1:6,336,000] (dike distribution) 

685 T: KINGERLY, T.L., 1954, The geology of the Triassic Basin, Scottsville, 

Virginia: M.S. Thesis, University of Cincinnati. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Scottsville Basin, Virginia 
Page 223 

686 T KINGSTON, M.J., 1979, The geochemistry of the fine grained sediments 

of the Doswell Formation, Taylorsville Basin, Virginia: M.S. Thesis, 

George Washington University, 95 p. 

KEYWORDS: sedimentation 

~eochemistry 

sediments 

mineralogy 

GEOGRAPHIC AREA: Taylorsville Basin, Virginia 

687 P : KITSON, J.E., 1934, Geology of the Connecticut Valley: Rocks and 

Minerals, v. 9, p. 157-159. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

688 p KIZIS, J.A., JR., AND LUX, D.R., 1974, Petrography of some mafic dikes 

northeast of Hartford, Connecticut: The Compass, v. 52, no. 1, p. 15-

19. 

SUMMARY: Two sub-parallel diabase dikes within pre-Triassic metamorphics east 

of the Hartford Basin show similar mineralogy, no differentiation; 

and a common magma source is suggested. 

KEYWORDS: mineralogy 

petrology 

diabase 

GEOGRAPHIC AREA: Connecticut, Tolland Co. 

MAPS: Mise: sample locations 
Paye 224 

689 p KLEIN, GEORGE DE VRIES, 1962, Triassic sedimentation, Maritime 

Provinces, Canada: Geoloyical Society of America, Bulletin, v. 73, p. 

1127-1146. 

SUMMARY: The stratigraphy of the Bay of Fundy Triassic sedimentary rocks and 

basalts is discussed. Primary structures and depositional environments are stressed. Sandstone compositional variation within 

formations is attributed to provenance and correlated to the parent 

pre-Triassic units. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Maritime Province 

MAPS: Geol: distribution of facies within formations [1:1,520,640] 

Section: stratigraphic 

DATA: Photos: outcrops 

690 p 

Plots: sandstone compositions 

KLEIN, GEORGE DE VRIES, 1963, Regional implications of Triassic paleocurrents, Maritime Provinces, Canada: Journal of Geoloyy, v. 71, p. 

801-808. 

SUMMARY: Cross-stratification measurements in the Fundy Group (Upper 

Triassic) of Nova Scotia indicate derivation of sediment from the 

north and west as well as the south and southeast. Such a pattern 

is shown to occur in the U.S. basins and suggests sedimentation in 

separate basins. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia 

MAPS: Geol: with current directions (Bay of Fundy region) 
Page 225 

691 F KLEIN, GEORGE DE VRIES, 1968, Sedimentology of Triassic rocks in the 

Lower Connecticut Valley: in, Orville, P.M., ed., Guidebook for 

Field Trips in Connecticut,~ew England Intercollegiate Geological 

Con- ference, 60th Meeting, Gu,idebook No. 2, Trip C-1, 19 p. 

SUMMARY: This field yuide discusses the stratigraphy and depositional 

environments of the Portland Arkose, East Berlin Fm., Shuttle Meadow 

Fm., Talcott Fm., and the New Haven arkose. Interpretation of sedimentary structures is emphasized. (Nine field stops.) 

KEYWORDS: sedimentation 

yeneral geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: sketch 

DATA: Photos: outcrops 

692 p KLEIN, GEORGE DE VRIES, 1969, Deposition of Triassic sedimentary rocks 

in separate basins, Eastern North America: Geological Society of 

America, Bulletin, v. 80, p. 1825-1832. 

SUMMARY: This report summarizes previous data and suggests that K-Ar 

measurements on sediments indicate deposition in separate nonconnected basins. In addition, the three lava flows in N.J. and 

Conn. cannot be correlated as once thought. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Regional 

MAPS: Mise: (regional) sediment dispersal patterns 

693 P : KLEMIC, HARRY, 1962, Uranium occurrences in sedimentary rocks of 

Pennsylvania: U.S. Geological Survey Bulletin 1107-D, p. D243-D288. 

SUMMARY: Several uranium occurrences are noted and described in the Stockton 

Arkose and Lockatong argillite of eastern Bucks County. Chemical 

analyses are given with distinct uranium minerals only being noted 

in the Stockton occurrences. Locations of outcrops are given. 

KEYWORDS: economic geology 

uranium 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co. 
Page 226 

694 p KLITGORD, KIM D., AND BEHRENDT, JOHN C., 1979, Basin structure of the 

U.S. Atlantic margin: in, Watkins, Joel S., Montadent, Lucia, and 

Kickersa, P.W., eds., Geological and Geophysical Investigations of 

Continental Margins: American Association of Petroleum Geologists, 

Memoir 29, p. 85-112. 

KEYWORDS: buried basins 

geophysics 

structure 

seismic profiles 

GEOGRAPHIC AREA: Regional 

695 p KLITGORD, KIM D., DILLON, WILLIAM P., AND POPENOE, PETER, 1983, Mesozoic tectonics of the Southeastern United States Coastal Plain and 

continental margin: U.S. Geological Survey Professional Paper 1313-P, 

15 p. 

SUMMARY: Magnetic, ~ravity, seismic-reflection, and drill hole data are used 

to ellucidate the tectonic zones and history of the SE coastal offshore area. Two elongate zones of graben development are noted, an 

onshore and an offshore, with the latter serving as the locus of 

Jurassic and later rifting. 

KEYWORDS: seismic profiles 

magnetism 

gravity 

tectonics 

geophysics 

buried basins 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: tectono-geologic reconstructions with geophysical overlay 

696 A KLUGER, K.L., 1977, Chemical leac~ing of Triassic red beds from the 

Newark Basin reveals acquisition of multiple polarities: American 

Geophysical Union, Transactions, v. 58, p. 382. 

SUMMARY: Thermal and chemical demagnetization of the sediments reveals a 

possible dual polarity acquisition unable to be detected by thermal 

treatment. Red beds may require 105 years to achieve remanence, 

and their use in magnetic stratigraphy is questionable. 

KEYWORDS: geophysics 

magnetism 

GEOGRAPHIC AREA: Regional 
Page 227 

697 M: KNAPP, D.A., 1978, Geologic map of the Granville area, Hampden County, 

Massachusetts: U.S. Geological Survey Open-File Report 78-271. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampden Co., Southwick Quad. 

MAPS: Geol: [1:24,000] 

698 A KOBAYASHI, K., TASHBOOK, L.F., AND NAGATA, T., 1964, Paleomagnetic 

measurements for the Newark Series of the Connecticut Valley: Geological Society of America, Special Paper 76, p. 94. 

SUMMARY: 46 samples of sediments, diabase, basalt, and hornfels are in 

agreement with previous work (i.e., 42°N, 73°W). The "fold test" of 

Graham correlated the data with previous New Jersey results, and 

conclusions regarding depositional history have been drawn. (These 

conclusions and results are not outlined in the abstract.) 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

699 p KOBAYASHI, KAZUO, AND SCHWARZ, E.J., 1966, Magnetic properties of the 

contact zone between Upper Triassic red beds and basalt in Connecticut: Journal of Geophysical Research, v. 71, no. 22, p. 5357-5364. 

SUMMARY: Samples near Middletown of the East Berlin Formation and the Hamden 

basalt were thermomagnetically analyzed between -190°C and 620°C. 

Magnetite is shown to form at least at 375°C up to 40 em from the 

basalt. Evidence for a magnetic reversal during the Late Triassic 

is presented. 

KEYWORDS: geophysics 

magnetism 

paleomagnetism 

metamorphism 

hornfels 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Middlesex Co., Middletown Quad. 

DATA: Plots: thermomagnetic curves, NRM directions 
Page 228 

700 A KOCH, HENNING F., 1967, Probable flow structures of the diabase of the 

Durham Triassic Basin, North Carolina: Elisha Mitchell Scientific 

Society, Journal, v. 83, p. 176. 

SUMMARY: Evidence for basaltic extrusive volcanism along the western margin 

of the basin is suggested by the nature of the overlying sediment 

contact, which is considered to have been an erosional surface. 

Basalts may also exist in the western margin of the Sanford Basin. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

701 p KOCH, HENNING F., 1967, The diabase of the Butner-Creedmoor Area, 

Granville County, North Carolina: Southeastern Geology, v. 8, p. 

73-79. 

SUMMARY: Diabase sills and dikes are mapped on the basis of soil type, which 

is a brown, heavy, plastic clay soil, and residual diabase rock. 

Diabase sills are considered to represent flows by the lack of contact metamorphism in overlying sediments while it occurs in underlying sediments, and the presence of a possible unconformable surface above the diabase. 

KEYWORDS: general geology 

diabase 

GEOGRAPHIC AREA: Durham Basin, North Carolina, Granville County 

MAPS: Geol: sketch 
Page 229 

702 p KODAMA, KENNETH P., 1983, Magnetic and gravity evidence for a subsurface connection between the Palisades Sill and the Ladentown 

basalts: Geological Society of America, Bulletin, v. 94, p. 151-158. 

SUMMARY: Magnetic and gravity measurements near Mount Ivy, N.Y., indicate 

that a 200-meter thick "dense slab" dipping south connects the NW 

edge of the Palisades diabase sill with the Ladentown basalt flows 

1.3 km to the west and indicates a Palisades magma source for the 

flows. A N-S trending normal fault may offset the sill at its NW 

edye. 

KEYWORDS: diabase 

basalt 

geophysics 

magnetism 

gravity 

GEOGRAPHIC AREA: Newark Basin, New York, Rockland Co. 

MAPS: Geophys: gravity-magnetics 

Mise: stations 

DATA: Plots: NRM's; magnetic profiles 

703 p KOLTZ, CHARLES, 1982, Geology in the Connecticut River Valley of 

western Massachusetts: in, Farquhar, O.C., (ed.), Geotechnology in 

Massachusetts: Amherst,~assachusetts, Graduate School, University of 

Massachusetts, p. 335-340. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

704 T KOUTSOMITIS, D., 1980, Gravity investigation of the northern TriassicJurassic Newark Basin and Palisades sill in Rockland County, New York: 

M.S. Thesis, Rutgers University, 103 p. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Newark Basin, New York 

705 T : KOZA, D.M., 1976, Petrology of the Higganum diabase dike in Connecticut and Massachusetts: M.S. Thesis, University of Connecticut. 

KEYWORDS: diabase 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts 
Page 230 

706 p KRAUS, E.H., AND COOK, C.W., 1906, Datolite from Westfield, 

Massachusetts: American Journal of Science, v. 22, p. 21-28. 

KEYWORDS: basalt 

mineraloyy 

zeolites 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

707 PM: KREISA, R.D., 1980, Geology of the Omega, South Boston, Cluster 

Springs and Virgilina Quadrangles: Virginia Division of Mineral 

Resources, Publication 5, 22 p. 

SUMMARY: The southern area of the basin is bounded on the west by a normal 

fault and largely covered by Quaternary alluvium. The most common 

lithology in the basin is a poorly sorted, grayish-red feldspathic 

sandstone comprised of quartz, plagioclase, microcline, biotite, 

muscovite, rock fragments, and hematitic cement. A fossiliferous 

(bivalve - Unionacea; crustacea - ostracode, branchiopod; and fish 

scales) gray red shale is interbedded with the sandstone. Coarse 

conglomerate occurs along the western and eastern edges of the 

basin. 

KEYWORDS: general geology 

paleontology 

GEOGRAPHIC AREA: Scottsburg Basin, Virginia, Halifax County, Omega Quad. 

MAPS: Geol: [1:24,000] 
Page 231 

708 PM: KROLL, RICHARD L., 1976, Barndoor diabase intrusions, North-Central 

Connecticut: Geological Society of America, Bulletin, v. 87, p. 

1449-1454. 

SUMMARY: The petrography and emplacement of the diabase within the New Haven 

Arkose is outlined. Features include: semispherically fractured 

pigeonite, pale-green pyroxene, differentiation in magma chambers 

and emplacement from 2 magma chambers by 5 conduits, and chemical 

similarity to the Talcott basalts. 

KEYWORDS: mineralogy 

petrology 

diabase 

general geology 

GEOGRAPHIC AREA: Hartford Basin, Conne~ticut, Hartford Co., Tariffville Quad. 

MAPS: Geol: [1:126,720] 

Section: diabase 

DATA: Chern. (type of data): B, Cr, Ni (basalt} 

Photos: pigeonite 

Plots: augite composition; alk.-FeO-MgO 

709 A: KRYNINE, PAUL D., 1941, Triassic sediments of Connecticut: Geological 

Society of America, Bulletin, v. 52, p. 1919. 

SUMMARY: (See Krynine, 1950.) Sediments, divided into 7 non-opaque heavy 

mineral zones, form an east-dipping wedge up to 16,000 feet thick 

against the eastern fault and were derived from 2 main alluvial fan 

systems on the eastern border. Red clay, swamps, flora, fresh 

arkose, and dessication suggest heavy precipitation and hot temperature but alternating dry seasons. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 232 

710 PM: KRYNINE, PAUL D., 1950, Petrology, stratigraphy, and origin of the 

Triassic sedimentary rocks of Connecticut: Connecticut Geological and 

Natural History Survey, Bulletin 73, 247 p. 

SUMMARY: This extensive work covers southern Conn. and proposes a stratigraphy as follows: New Haven Arkose (lower), Meriden Formation 

(lacustrine, central), and the Portland Arkose (upper). Detailed 

petrographic-mineralogic and textural data is pres'ented. The 

climate is interpreted to have been humid-tropical. 

KEYWORDS: general geology 

stratigraphy 

sedimentation 

climate 

GEOGRAPHIC AREA: Hartford Basin, Pomperaug Basin, Connecticut 

MAPS: Geol: [1:126,720] 

Section: stratigraphic columns; sections (type) 

DATA: Plots: mineralogy; texture 

711 P : KUMMEL, HENRY B., 1898, The Newark system or red sandstone belt: New 

Jersey Geological Survey, Annual Report 1897, p. 23-159. 

SUMMARY: This report summarizes the geological character, distribution, and 

structure of the Stockton, Lockatong, and Brunswick Formations, and 

the diabase and basalt. Deposition and history are briefly 

summarized: shallow water deposition occurring with subsidence of a 

peneplained basin followed by tilting and faulting. 

KEYWORDS: general geology 

structure 

economic geology 

coal 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: N.J. general; sketches 

DATA: Photos: outcrops 
Page 233 

712 PM: KUMMEL, HENRY B., 1899, The Newark rocks of New Jersey and New York: 

Journal of Geology, v. 7, p. 23-52. 

SUMMARY: The geology of the Stockton, Lockatong, and Brunswick Formations is 

discussed, and lateral facies changes along strike to the NW and NE 

are emphasized. The structure, thicknesses of these units, and 

deposition and provenance are discussed. A pre-Triassic peneplain, 

followed by shallow water lacustrine deposition, is favored. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 

MAPS: Geol: [1:633,600] 

713 p KUMMEL, HENRY B., 1900, The Newark or new red sandstone rocks of 

Rockland County, New York: New York State Museum, 52nd Annual Report, 

v. 2, p. 9-50. 

SUMMARY: This work is a descriptive account of the Brunswick, Lockatong, and 

Stockton Fms., the Palisades and Ladentown diabase intrusives 

(structure, relationship to sediments, contact metamorphism), and 

structure of the Newark Basin in New York. A depositional model is 

developed. 

KEYWORDS: general geology 

stratigraphy 

diabase 

GEOGRAPHIC AREA: Newark Basin, New York 

DATA: Photos: outcrops 

714 P : KUMMEL, HENRY B., 1909, Copper m~ning in New Jersey: Engineering 

and Mining Journal, v. 87, p. 808. 

SUMMARY: The mining methods of the Somerville Mine at the base of the First 

Watchung Mountains are outlined. Ore occurs in the first several 

feet of shale adjacent to and beneath the basalt. Native copper 

dominates beyond the first 600 feet along the 1400-foot main slope. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
715 T 

Page 234 

KUNIHOLM, J.G., 1980, Depositional interpretation of the Late Triassic 

and Early Jurassic sedimentary strata exposed at Turners Falls, Massachusetts: B.A. Honors Thesis, Amherst College, 66 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

716 T KUSIAK, JOHN, 1977, A detailed gravity and magnetic interpretation of 

the structure and deformational history of the Jacksonwald syncline, 

Berks County, Pennsylvania: Ph.D. Thesis, Pennsylvania State University. 

KEYWORDS: geophysics 

gravity 

magnetism 

structure 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks Co. 

717 p 

L 

LA GANZA, R.F., 1960, Paragenetic relationships of deuteric .minerals 

in Triassic dolerite near New Haven, Connecticut: Neues Jahrbuch fur 

Mineralogie, Abhandlungen, v. 94, p. 559-563. 

KEYWORDS: diabase 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

718 T : LANNING, R.M., 1972, An olivine tholeiite swarm in Lancaster County, Pennsylvania: M.S. Thesis, Pennsylvania State University, 79 p. 

KEYWORDS: diabase 

petrology 

geochemistry 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 
719 p 

Page 235 

LANPHERE, MARVIN A., 1983, 40Arj39Ar ages of basalt from Clubhouse 

Crossroads Test Hole No. 2, near Charleston, South Carolina: U.S. 

Geological Survey Professional Paper 1313B, B1-B8. 

SUMMARY: 40Ar/39Ar total-fusion ages on the basalt range from 182 to 236 

m.y., with an isochron age of 184+3.3 m.y. Such an age is consistent with emplacement shortly after initial Atlantic rifting 

about 190 m.y. ago. 

KEYWORDS: radiometric age 

Ar/Ar dating 

GEOGRAPHIC AREA: South Carolina 

720 A LAPHAM, D.M., 1971, Triassic tholeiite magma as a fundamental of 

Mesozoic continental rifting: Pennsylvania Academy of Science, 

Proceedings, v. 45, p. 201-202. 

SUMMARY: Qtz.-norm. tholeiitic intrusi0ns in Pennsylvania follow a 3-stage 

history: flows during late sedimentation, sub-horizontal intrusion, and filling of extensio~al fractures. Olivine-deficient 

tholeiites occur distal from magma foci. Magma ponding in the crust 

and mantle inhomogeneity may explain flows of high Fe and K, Ti02 

provinces, and Sr variation. 

KEYWORDS: diabase 

petrology 

geochemistry 

GEOGRAPHIC AREA: Regional; Newark Basin, Gettysburg Basin, Pennsylvania 

721 A LAPHAM, DAVIS M., 1960, Photomicrography of the Cornwall magnetite ore 

body, Cornwall, Pennsylvania: Geological Society of America, 

Bulletin, v. 71, p. 1913. 

SUMMARY: This study of the eastern ore body indicates: diabase is not 

Fe-depleted, amphibole-chlorite~sericite in upper diabase increase 

toward ore, and ore locatizatijon controls include compositional and 

textural banding of the host ?edimentary rocks. Ore was emplaced 

later than crystallization of diabase and is associated with 

hydrothermal solution. 

KEYWORDS: economic geology 

iron 

diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lebanon Co., Lebanon Quad. 
722 p 

Page 236 

LAPHAM, DAVIS M., 1963, Leonhardite and laumontite in diabase from 

Dillsburg, Pennsylvania: American Mineralogist, v. 48, p. 683-689. 

SUMMARY: The chemistry, x-ray patterns, and optics of leonhardite and 

laumontite are presented. The minerals occur with calcite, quartz, 

zeolites, and minor sulfides, and fluorite in fractures in the top 

300 feet of the diabase sheet on Route 15. Formation may be due to 

low-temperature hydrothermal solutions. 

KEYWORDS: diabase 

mineraloyy 

petrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Dillsburg Quad. 

723 p LAPHAM, DAVIS M., 1968, Triassic magnetite and diabase at Cornwall, 

Pennsylvania: in, Ridge, J.D., ed., Ore Deposits of the United 

States 1933-196~ vol. 1, American Institute of Mining and Metallurgical Engineers, p. 73-94. 

SUMMARY: Magnetite, chalcopyrite (with Ay, Au), and pyrite (with Co) occur in 

replacement bodies of Cambro-Ordovician limestone adjacent to a diabase sheet. Calc-silicate replacement of limestone, potassium metasomatism, and metal-mineral zoning occur. Magnetite mineralization 

followed intrusion of an iron-alkali fractionated diabase. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lebanon Co., Lebanon Quad. 

MAPS: Geol: Cornwall area 

Section: cross section 

DATA: Chern. (type of data): ore (Fe, S, Cu, Ni, Co, Mn, P); major oxide (ore, 

diabase, country rock) 

Plots: paragenesis; mineral-chemical zoning 
Page 237 

724 p LAPHAM, DAVIS M., AND SAYLOR, TIMOTHY E., 1970, Chemical analyses of 

three Triassic (?) diabase dikes in Pennsylvania: Pennsylvania 

Geological Survey, 4th Series, Information Circular 68, 16 p. 

SUMMARY: Samples from diabase dikes between Gettysburg and Duncannon, and 

Cornwall, Pa., and Pilot, Md.~ are studied chemically and petrographically. Comparison with ~ther tholeiites is made. The later 

two dikes are compositionally ~istinct, with the former dike swarm 

trend being compositionally uniform. Al203 varies inversely with 

Ti02. Diabase dike and sheet composition vary only slightly. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Maryland 

DATA: Chern. (type of data): major oxide, trace 

Plots: Al203 vs. Ti02 

725 P : LAROCHELLE, A., 1967, Paleomagnetic directions of a basic sill in 

Prince Edward Island: Canada Geological Survey, Paper 67-39-1, 6 p. 

SUMMARY: Paleomagnetic directions indicate that the sill, which intrudes red 

beds of Permian (?) age, is Upper Permian in age. The occurrence is 

on Hog Island, Malpeque Bay. Previously published Triassic pole 

positions are noted. 

KEYWORDS: diabase 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Maritime Province, Prince Edward Island, Canada 

DATA: Plots: poles, NRM 1 s 

726 p LAROCHELLE, A., 1967, Preliminary data on the paleomagnetism of the 

North Mountain basalt, Nova Scotia: Canada Geological Survey, Paper 

67-39-2, 5 p. 

SUMMARY: Data from this unit along the Bay of Fundy yield a pole position at 

113°E - 66°N, which, together with other Triassic pole positions 

from the Newark Series (avg. 102°E, 64°N), indicate that the 

Triassic pole is 10° farther morth than suggested by Irving (1964). 

KEYWORDS: paleomagnetism 

basalt 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

DATA: Plots: NRM•s, poles 
Page 238 

727 p LAROCHELLE, A., AND WANLESS, R.K., 1966, The paleomagnetism of a 

Triassic diabase dike in Nova Scotia: Journal of Geophysical 

Research, v. 71, no. 20, p. 4949-4953. 

SUMMARY: This dike in southeast Nova Scotia is 197 m.y. and yields a pole 

position at 98°E, 69°N in agreement with other North American 

Triassic pole positions. 

KEYWORDS: geophysics 

paleomagnetism 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

MAPS: Geol: dike location 

DATA: Plots: poles 

728 p LARSEN, ESPER S., AND GOTTFRIED, DAVID, 1960, Uranium and thorium in 

selected suites of igneous rocks: American Journal of Science, 

Bradley Volume, v. 258A, p. 151-169. 

SUMMARY: Uranium and thorium contents of normal diabase (pyroxene, labradorite), intermediate diabase (amphibole, less calcic plagioclase, 

quartz), and granophyre (albite, amphibole, quartz) are.(U-Th) 

0.5-2.1, 1.4-5.4, and 2.5-9.6, respectively. Locations are not 

provided. Discussion of the differentiation trend behavior of the 

two elements is discussed. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax Co. 

DATA: Chern. (type of data): diabase (U, Th) 
729 p 

Page 239 

LARSON, E.E., AND LA FOUNTAIN, L., 1970, Timing and breakup of the 

continents around the Atlantic ,as determined by pa 1 eomagnet ism: Earth 

and Planetary Science Letters, v. 8, p. 341-351. 

SUMMARY: Paleomagnetic data indicates that through much of the Triassic the 

continents were contiguous and that breakup began about 200 m.y. 

ago. Spreading in the North and South Atlantic was uniform during 

the first 100 m.y.; but, during the last 100 m.y., the South 

Atlantic has opened at a faster rate. Paleomagnetic data for the 

North Atlantic is in disagreement with ocean floor magneti~ 

anomalies and present drift rates. 

KEYWORDS: tectonics 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Regional 

730 p LARSON, J.D., 1978, Chemical composition of surface water during low 

flow- Fairfax County, Virginia: U.S. Geological Survey Open-File 

Report 78-719, 31 p. 

SUMMARY: Chemical analyses of stream discharges in August 1977 were studied. 

Streams in the Triassic rocks have the highest level of natural 

contamination of dissolved minerals, due largely to its hard, high 

sulfate character. Such chemistry also reflects the presence of 

more soluble minerals (calcite) and longer transit time. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: (water chemistry and discharge) [1:48,000] 

DATA: Chern. (type of data): water 

731 M LARSON, J.D., 1978, Chemical quality of groundwater, Fairfax County, 

Virginia: U.S. Geological Survey Open-File Report 78-268. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: ground water [1:48,000] 
Page 240 

732 p LARSON, J.D., 1978, Hydrogeology of the observation well site at the 

U.S. Geological Survey, National Center, Reston, Virginia: U.S. 

Geological Survey Open-File Report 78-144, 35 p. 

SUMMARY: Geophysical, petrographic, and flowmeter studies of two wells just 

within the east border of the basin are presented. The Manassas 

sandstone is a fractured-rock aquifer and provides high-quality 

water. Core logs are presented. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax County 

DATA: Chern. (type of data): water 

733 T LAWLER, JEANNE PASSONTE, 1981, Fluid inclusion evidence for ore-forming solutions, Phoenixville, Audubon, New Galena District, Pennsylvania: M.S. Thesis, Bryn Mayr College. 

KEYWORDS: economic geology 

lead 

zinc 

barite 

copper 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

734 A LAWLOR, S.J.M., MURPHY, S.M.T.J., AND CHAPMAN, R.W., 1967, Hydrocarbons isolated from shales of the East Berlin Formation, Connecticut: 

Geological Society of America, Special Paper 115, p. 128-129. 

SUMMARY: Aromatic hydrocarbons, with smaller amounts of saturated and acid 

components, are found in the gray and black shales just below the 

Hampden basalt. The black shale in the contact zone contains less 

organic matter than the gray shale below this zone, a phenomenon related to the heat of the extrusion. 

KEYWORDS: economic geology 

oil 

metamorphism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co., Middletown Quad. 

735 T: LAWRENCE, D.E., 1966, A contribution to the petrology of the Great 

Dike of Nova Scotia: M.S. Thesis, Dalhousie University, 108 p. 

KEYWORDS: diabase 

petrology 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 
736 A 

Page 241 

LEA, I., 1857, Observations on tne red sandstone near Gwynned, 

Montgomery County, Pennsylvania: Academy of Natural Sciences, 

Philadelphia, Proceedings, v. 9, p. 173. 

SUMMARY: This brief note refers to a fish scale occurrence at Gwynned which 

is shown to be Radiolepes speciosus, the species that occurs in the 

Chatham series of N. Carolina. {No details are given.) 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery County 

737 M LEAVY, B.D., 1984, Map showing p1anar and linear features, Culpeper 

basin and vicinity: U.S. Geological Survey Miscellaneous Investigations Report I-1313-G. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: structure [1:125,000] 

738 M LEAVY, B.D., FROELICH, A.J., AND ABRAM, E.C., 1982, Bedrock map and 

geotechnical properties of rocks of the Culpeper Basin and vicinity, 

Virginia and Maryland: U.S. G~ological Survey, Miscellaneous Investigations, Map I-1313-C. 

KEYWORDS: bedrock geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Maryland 

MAPS: Geol: [1:125,000] 

739 M LEAVY, B.D., GROSZ, A.E., AND JOHNSON, S.S., 1982, Total count aeroradioactivity map of the Culpeper Basin and vicinity, Virginia: Virginia Division of Mineral Resources Publication No. 40. 

KEYWORDS: geophysics 

aeroradioactivity 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: aeroradioactivity [1:125,000] 
740 A 

Paye 242 

LEAVY, B.D., JOHNSON, S.S., KELLER, G.R., AND FROELICH, A.J., 1981, A 

preliminary interpretation of a gravity investigation of the Culpeper 

Basin, Virginia: Geological Society of America, Abstracts with 

Programs, v. 13, p. 142. 

SUMMARY: Basin sediments along the western margin produce weak gravity lows, 

while pre-Mesozoic basement rocks and Jurassic igneous rocks cause 

stronger anomalies. The trend of the basin is parallel to the 

pre-Mesozoic rocks in the N part of the basin but cuts westward 

across the regional strike in the south. The basin is estimated to 

be 2- to 3-km thick at its deepest part. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

741 A LEAVY, BRIAN D., 1980, Tectonic and sedimentary structures along the 

eastern margin of the Culpeper Basin, Virginia: Geological Society of 

America, Abstracts with Programs, v. 12, p. 182. 

SUMMARY: Exposures of normal border faults at Herndon and Manassas trend N 

6°E (avg) with the latter showing a 27-meter displacement. The 

faults do not parallel the schistosity of the pre-Triassic rocks. 

Faults within the basin are mostly syndepositional. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax Co. 

742 A LEAVY, BRIAN D., 1983, Physical and chemical characteristics of four 

Jurassic basalt units in the Culpeper Basin, Virginia: Geological 

Society of America, Abstracts with Programs, v. 15, p. 92. 

SUMMARY: Four basalt units occur along the western margin of the basin and 

are intercalated with sedimentary rocks. The three older flows are 

quartz-normative, with the oldest a high Ti02 type. For the most 

part thick ponded flows and Tomkeieff sequences are absent, unlike 

basalts of the Newark Basin. Relationships between the flows and 

conglomerates along the basin margin suggest that the basin was 

active tectonically during basalt extrusion. 

KEYWORDS: basalt 

general geology 

petrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
Page 243 

743 p LEBLING, Clemens, 1915, Die senkungen im bereiche der Newarktrias; 

in: Tectonische Forschungen in den Appalachen: Geologische 

Rundschau, v. 5, p. 449-462. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Regional 

744 T : LECHLER, PAUL, 1978, Geochemistry of Cushetunk Mountain: M.S. Thesis, 

Rutgers University, 37 p. 

KEYWORDS: diabase 

basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

745 p LEE, C.H., 1978, Preliminary study of the uranium potential of the 

Triassic Sanford Basin and Colon cross structure, North Carolina: 

U.S. Department of Energy, Grand Junction Operations, GJBX-8(78), 13 

p. 

SUMMARY: Potential for uranium deposits may exist at the contacts between the 

Pekin and Cumnock, and the Pekin and Sanford Formations near the 

Colon cross structure. The Jonesboro Fault may also be a favorable 

precipitation site. Uranium may be leached from exposed rocks and 

redeposited at depth (Cumnock shale). 

KEYWORDS: economic geology 

uranium 

GEOGRAPHIC AREA: Sanford Basin, North Carolina 

MAPS: Geol: (2) 

Section: cross section, stratigraphic column 
746 p 

Page 244 

LEE, K.Y., 1977, Triassic stratigraphy in the northern part of the 

Culpeper Basin, Virginia and Maryland: U.S. Geological Survey 

Bulletin 1422-C, 17 p. 

SUMMARY: (See K.Y. Lee, 1979.) The Manassas sandstone and conglomerate, the 

Balls Bluff siltstone, and the Leesburg limestone conglomerate and a 

clastic upper unit with basalt flows constitute the eastern edge, 

the central, and the western edge of the basin, respectively. The 

three formations are respectively correlated to the Stockton, 

Lockatong and Brunswick Formations of the Newark Basin. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Maryland 

MAPS: Geol: [1:250,000] 

747 M LEE, K.Y., 1978, Geologic map of the Arcola Quadrangle, Loudoun and 

Fairfax Counties, Virginia: U.S. Geological Survey Miscellaneous 

Field Studies Map, MF-973. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co., Fairfax Co., Arcola 

Quad. 

MAPS: Geol: [1:24,000] 

748 p LEE, K.Y., 1979, Triassic-Jurassic geology of the northern part of the 

Culpeper Basin, Virginia and Maryland: U.S. Geological Survey OpenFile Report 79-1557, 10 p. 

SUMMARY: The stratigraphy of the basin and the mineralogic and field 

relations of the units are outlined (see Lee, 1980). The Culpeper 

Group consists of the Manassas, Balls Bluff, and Bull Run Formations with basalt flows in the latter. Diabase and granophyre are 

present. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Maryland 
Page 245 

749 p LEE, K.Y., 1980, Triassic-Jurassic geology of the southern part of the 

Culpeper Basin and the Barboursville Basin, Virginia: U.S. Geological 

Survey Open-File Report 80-468, 9 p. 

SUMMARY: The stratigraphy of the basin is briefly outlined and consists of 

the Manassas sandstone, the Balls Bluff siltstone, several basalt 

flows and diabase intrusives, and an upper Bull Run conglomerate. 

Copper and barite occur but are not discussed in detail. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virgi~ia 

750 A LEE, K.Y., 1982, Thermal metamorphism of Triassic and Jurassic sedimentary rocks in the Culpeper Basin, Virginia: Geological Society of 

America, Abstracts with Programs, v. 14, p. 34. 

SUMMARY: The mineralogic composition or the contact metamorphic sedimentary 

rocks is outlined, and four ~roups are recognized: hornfels, 

granofels, quartzite, and marble. Parental materials for these are 

respectively: shale-mudstone~siltstone, arkose, (forms within 

granofels), limestone conglomerate. Thermal effects include: 

addition of Na20 and K20 to lacustrine deposits, and addition of 

boron to arkosic rocks. 

KEYWORDS: metamorphism 

hornfels 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

751 A : LEE, L. DOYCE, 1971, A diabase dike in Meriwether County, Georgia: 

Georgia Academy of Science, Bulletin, v. 29, p. 127. 

SUMMARY: The mineralogy and petrography of a 28-mile long, NW-trending dike 

are outlined. Plagioclase (An60), clinopyroxene, pyrite, magnetite, 

and olivine are the constitu~nts. Grain size increases toward. the 

center of the dike with pyrite and magnetite more abundant (4.3%) in 

the finer grained diabase. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Georgia, Meriwether Co. 
Page 246 

752 p LEE, 0. IVAN, 1937, Ye ancient copper mine of Arent Schuyler: Rocks 

and Minerals, v. 12, p. 99-109. 

SUMMARY: A review is given of the history of mining at the Schuyler Mine. A 

descriptive account of the underground workings is also provided. 

Minerals found at the deposit include: azurite, calcite, chalcocite, chrysocolla, copper, covellite, cuprite, epidote, gold, malachite, silver, and rutile. No details on the geology are provided. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Bergen County, Orange Quad. 

DATA: Photos: underground workings (3) 

753 p LEGRAND, HARRY E., 1954, Geology and ground water in the Statesville 

area, North Carolina: North Carolina Department of Conservation and 

Development, Bulletin 68, 68 p. 

SUMMARY: Chemistry of water from one well within Triassic sandstone is presented (pH 6.8, hardness as CaC03 59 ppm, dissolved solids 84 ppm); 

and a small (1 sq. mile) area of Triassic occurs in Iredell County 

to the SW of the basin and is considered an erosional remnant of the 

basin. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Davie County Basin, North Carolina 

MAPS: Geol: sketch 

DATA: Chern. (type of data): water 

754 PM: LEGRAND, HARRY ELWOOD, 1960, Geology and ground water resources of 

Pittsylvania and Halifax Counties: Virginia Division of Mineral 

Resources, Bulletin 75, 86 p. 

SUMMARY: Data from wells in the Triassic sediments are presented (gallons per 

minute, locations, depth, chemistry). It is noted that ground-water 

circulation is probably confined to the upper 50 feet of the shales 

and sandstones. 

KEYWORDS: general geology 

hydrology 

GEOGRAPHIC AREA: Danville Basin, Scottsburg Basin, Walnut Creek Basin, 

Virginia, Halifax Co., Pittsylvania Co. 

MAPS: Geol: (bar scale only) 
Page 247 

755 PM: LEHMANN, E.P., 1959, The bedrock geology of the Middletown Quadrangle: 

Connecticut Geological and Natu:ral History Survey, Quadrangle Report 

8' 40 p. 

SUMMARY: The stratigraphy, field relations, and petrography of (from oldest) 

the New Haven Arkose, Talcott Basalt, Shuttle Meadow Formation, 

Holyoke Basalt, East Berlin Formation, Hampden Basalt, and Portland 

Arkose are presented, including fossils, primary structure and type 

sections. Structure is also outlined and consists primarily of 

intra-basin normal faults. 

KEYWORDS: general geology 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Middlesex, Hartford Co., New 

Haven Quad. 

MAPS: Geol: [1:24,000] 

DATA: Photos: outcrops 

756 A 

Plots: joint system map 

LEITH, C.J., AND CUSTER, R.L.P., 1967, Triassic paleocurrents in the 

Durham Basin, North Carolina: Geological Society of America, Special 

Paper 115, p. 484-485. 

SUMMARY: Cross bedding, channel and pebble structures indicate that current 

flow was toward the northeast. Sediment derived from bordering 

metamorphics was deposited on floodplains, river channels, and 

lakes. The NE flank of the Colon cross structure influenced 

drainage direction, particularly in the oldest (lower) units. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

757 M LEO, G.W., ROBINSON, PETER, AND HALL, D.J., 1977, Bedrock geologic map 

of the Ludlow Quadrangle, Hampden and Hampshire Counties, Massachusetts: U.S. Geological Survey, Geologic Quadrangle Map GQ-1353. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geol: [1:24,000] 
Page 248 

758 p LE PICHON, XAVIER, AND FOX, PAUL J., 1971, Marginal offsets, fracture 

zones, and the early opening of the North Atlantic: Journal of 

Geophysical Research, v. 76, no. 26, p. 6294-6308. 

SUMMARY: (This is an auxilliary tectonic study included to provide information on the tectonic evolution of the opening of the Atlantic.) 

Emphasis is placed upon the fracture zones, the}r respective poles 

and the regional rotational history. 

KEYWORDS: tectonics 

GEOGRAPHIC AREA: Regional 

MAPS: Mise: reconstruction of continents 

759 P : LEROSE, PETER F., 1971, The Triassic basins of eastern North America: 

Rocks and Minerals, v. 46, no. 2, p. 81-82. 

SUMMARY: A general review is given of the regional geologic features of the 

basins. The climatic history is considered complex, with the Early 

lriassic wet, followed by a period of instability (fanglomerates), 

and finally a "calm" mudflat period. Southern basin areas were more 

humid (coal) than the arid northern basins. 

KEYWORDS: general geology 

climate 

GEOGRAPHIC AREA: Regional 

760 p LESLEY, J.P., 1891, On an important boring through 2000 feet of Trias, 

in Eastern Pennsylvania: American Philosophical Society, Proceedings, 

v. 29, p. 20-25. 

SUMMARY: A 2084-foot drill hole at Revere is logged and consists primarily of 

brown to gray shale and sandstone with black shale.and a 9-foot 

anthracite coal bed recognized by the corer. The author doubts the 

occurrence of the coal based on field observations (additional 

comments by B.S. Lyman). 

KEYWORDS: general geology 

economic geology coal 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co. 
Page 249 

761 p LESTER, J.G., AND ALLEN, A.T., 1950, Diabase of the Georgia Piedmont: 

Geological Society of America, Bulletin, v. 61, p. 1217-1224. 

SUMMARY: Fifty-seven dikes, not previously recognized, are mapped, and their 

petrography, weathering and field relations are discussed. Dikes 

trend NW and range from 10°W in the west to 35°W toward the east. 

Dike swarms consist of shorter dikes of varying orientation. Dikes, 

truncated by the Brevard zone to the north, are intruded parallel to 

NW-SE-trendiny syncline axes. 

KEYWORDS: general geology 

diabase 

mineralogy 

GEOGRAPHIC AREA: Georgia 

MAPS: Geo 1 : ( 2) no sea 1 e 

762 A LETOURNEAU, PETER M., AND HORNE, GREGORY S., 1984, Alluvial fan 

development in the Lower Juras$ic Portland Formation, Connecticut: 

Geological Society of America, Abstracts with Programs, v. 16, no. 1, 

p. 46-47. 

SUMMARY: Sedimentary facies associated with alluvial fan sequences in the 

Jurassic Portland formation are discussed. 

KEYWORDS: sedimentology 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

763 p LEVISON, WILLIAM GOOLD, 1909, On the origin and sequences of the 

minerals of the Newark (Triassic) igneous rocks of New Jersey: New 

York Academy of Science, Annals, v. 19, p. 121-134. 

SUMMARY: Crystallization of the second~ry minerals in the trap is attributed 

to the action of groundwater,: which is shown by experiment to 

dissolve diabase. No prevalent paragenesis is shown to exist, but 

quartz, calcite, and datolite' appear to be most often primary. 

Descriptions of zeolites from.various N.J. quarries are presented. 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: mineral specimens 
Page 250 

764 A LEWIS, CATHERINE L., AND PHILPOTTS, ANTHONY R., 1984, Origin of pipe 

vesicles: Geological Society of America, Abstracts with Programs, v. 

16, no. 1, p. 47. 

SUMMARY: Pipe vesicles in Mesozoic basalts of the Hartford Basin, Connecticut, are .interpreted as forming from nucleation and growth of 

bubbles of gas exsolved from the crystallizing lava. 

KEYWORDS: basalt 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

765 p LEWIS, H. CARVILLE, 1885, A great trap dyke across Southeastern 

Pennsylvania: American Philosophical Society, Proceedings, v. 22, p. 

438-456. 

SUMMARY: The field relations of a seventy-mile long diabase dike are 

described in detail. 

KEYWORDS: general geology diabase 

GEOGRAPHIC AREA: Pennsylvania, Chester County 

MAPS: Geol: [1:300,000] 

766 P : LEWIS, J. VOLNEY, 1907, Copper deposits of the New Jersey Triassic: 

Economic Geology, v. 2, p. 242-257. 

SUMMARY: Ores, consisting of native copper and chalcocite, occur in contact 

with basalt and diabase sheets at Griggstown, Arlington, and 

Somerville, to name a few. In contrast to theory by Weed (1902), 

the author proposes a primary hydrothermal origin. A number of 

mines are described, and it is recognized that several copper- silver occurrences are not·spatially related to diabase or basalt. 

KEYWORDS: economic geology 

copper 

silver 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Mise: copper occurrences 
Page 251 

767 p LEWIS, J. VOLNEY, 1907, Structure: and correlation of Newark trap rocks 

of New Jersey: Geological Soci,ety of America, Bulletin, v. 18, p. 

195-210. 

SUMMARY: Study of the field relations of the igneous rocks indicates: Second 

Watchung Mountain is a double flow; New Vernon correlates with Long 

Hill; Sand Brook and New Germantown remnants correlate with first 

and Second Watchungs; Palisades Sill continues (correlates with) 

Rocky Hill-Baldpate Mountains~sourland Mountains-Byram mass. 

KEYWORDS: general geology 

diabase 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geo 1 : ( 3) sketches 

768 P : LEWIS, J. VOLNEY, 1907, The double crest of Second Watchung Mountain: 

Journal of Geology, v. 15, p. 39-45. 

SUMMARY: The double crest is attributed to a second flow occurring shortly 

after a first, but after a period of sedimentation following the 

first flow. Deformation of t~e basin in the area occurred after the 

first flow so that the intervening sedimentation between the two 

flows is localized near the center of the local basin downwarping. 

The double crest is not attriDuted to a curved fault. 

KEYWORDS: ~eneral ~eology 

basalt 

structure 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geo 1 : ( 2) sketch 
Page 252 

769 p LEWIS, J. VOLNEY, 1907, The Newark (Triassic) copper ores of New 

Jersey: New Jersey Geoloyical Survey, Annual Report of the State 

Geologist, 1906, p. 131-164. 

SUMMARY: The geology, nature of workings, and ore minerals are described for 

the Rocky Hill, Schuyler, Flemington, Somerville, Chimney Rock, and 

other mines. A primary hydrothermal source depositing oxidized 

copper minerals in nearer intrusives and native copper distally 

accounts for these occurrences in the sedimentary rocks associated 

with intrusives. 

KEYWORDS: economic geology 

copper 

silver 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Mise: mine plans 

770 P : LEWIS, J. VOLNEY, 1908, The Palisade diabase of New Jersey: American 

Journal of Science, v. 26, p. 155-162. 

SUMMARY: The detailed petrography and chemistry of the diabase is presented. 

The diabase is chiefly a quartz-diabase with a subordinate olivinediabase near its base attributed to crystal gravity settling. 

Hypersthene and diopside are the chief pyroxenes with feldspars 

ranging from orthoclase and albite to labradorite. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (no. of data): (8) 

Chern. (type of data): major oxide (diabase, augite) 
771 p 

Page 253 

LEWIS, J. VOLNEY, 1915, Origin of the secondary minerals of the 

Triassic trap rocks: New Jersey Geological Survey, Bulletin 16, p. 

45-49. 

SUMMARY: The zeolite and other secondary minerals are listed and attributed 

not to the action of groundwater, but to primary magmatic fluids 

emanating from late, volatile-rich differentiates. Such an origin 

best correlates with field relations and the occurrence of boronand fluorine-rich minerals (datolite, fluorite, apatite, and 

tourmaline). 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

772 p LEWIS, J. VOLNEY, 1915, The pillow lavas of the Watchung Mountains: 

New Jersey Geological Survey, Bulletin 16, p. 51-56. 

SUMMARY: Pillow lavas, measuring one to two feet and characterized by an 

outer glassy coating, elliptical shape, radiating joints, and 

central vesicle, occur in the upper First Mountain basalt and the 

lower part of the Second Mountain. Locations include McBride Ave., 

Paterson; Little Falls; and Glenside Park. Theories on pillow 

origin follow. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pasaic Co. 
Page 254 

773 p LEWIS, J.V., 1908, Petrography of the Newark igneous rocks of New 

Jersey: New Jersey Geological Survey, Annual Report of the State 

Geologist, 1907, p. 97-167. 

SUMMARY: This extensive work describes the petrography, mineralogy, and 

chemistry of the diabase, its differentiates, inclusions, and 

associated hornfels facies. The micro- and megascopic character of 

the basalts are also outlined. 

KEYWORDS: diabase 

basalt 

mineralogy 

petrology 

metamorphism 

hornfels 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): augite, diabase, feldspar, arkose inclusions 

(major oxide) 

Photos: outcrops, quarries (40); photomicrographs (32) 

Plots: composition 

774 P : LEWIS, J.V., 1914, Origin of pillow lavas: Geological Society of 

America Bulletin, v. 25, p. 32-33, 591-654. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Regional 

775 p LEWIS, J.V., AND KUMMEL, H.B., 1940, The geology of New Jersey 

(revised): New Jersey Department of Conservation and Development, 

Bulletin 50, 203 p. 

SUMMARY: The structural relations; character of the Stockton, Lockatong, and 

Brunswick Fms.; the basalt and diabase; and depositional history of 

the early Mesozoic are briefly outlined. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
776 T 

Page 255 

LEWIS, STANLEY R., 1974, Significance of the vertical and lateral 

changes in the clay mineralogy of the Dunbarton Triassic Basin, South 

Carolina: M.S. Thesis, University of North Carolina. 

KEYWORDS: buried basins 

sediments 

mineralogy 

GEOGRAPHIC AREA: Dunbarton Basin, South Carolina 

777 T LIGGON, GEORGE H., 1972, Petrology and depositional environments of 

some Triassic sediments in North Carolina: M.S. Thesis, North 

Carolina State University. 

KEYWORDS: sedimentation 

sediments 

petrology 

GEOGRAPHIC AREA: North Carolina 

778 A LINDHOLM, R.C., GORE, P.J., AND CROWLEY, J.K., 1982, A lacustrine 

sequence in the Upper Triassic Bull Run Formation (Culpeper Basin) in 

Northern Virginia: Geological Society of America, Abstracts with 

Programs, v. 14, p. 35. 

SUMMARY: A seven-meter lacustrine transgressive-regressive sequence consists 

of a central (2 m) olive-gray lutite that accumulated below wavebase. Olive-gray shale and sandstone occur above and below and were 

deposited toward the lake margin. A 2 to 3 em black stromatolitic 

limestone occurs at the top. Ostracods and the clam shrimp Cyzicus 

are abundant in the shallower deposits. 

KEYWORDS: sedimentation 

paleontology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Prince William Co., Manassas Quad. 
779 p 

Page 256 

LINDHOLM, R.C., HAZLETT, J.M., AND FAGIN, S.W., 1979, Petrology of 

Triassic-Jurassic conglomerates in the Culpeper Basin, Virginia: 

Journal of Sedimentary Petrology, v. 49, no. 4, p. 1245-1262. 

SUMMARY: The muddy sandy pebble conglomerates of the Bull Run Formation 

contain clasts derived from Precambrian Blue Ridge greenstone, quartzite, and limestone and were deposited as debris flows along 

east-dipping alluvial fans along the fault-bounded western margin. 

lhe geometry of the intersection of the fault with the Blue Ridge 

anticlinorium to the west dictated that, to the south, progressively 

older Blue Ridge Formations provided these clastics. 

KEYWORDS: sedimentation 

structure 

faults 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: sketches 

DATA: Plots: clast lithology and size relationships;; mineral composition 

780 A LINDHOLM, ROY C., 1977, Geology of Jurassic-Triassic Culpeper Basin, 

north of Rappahannock River, Virginia: American Association of 

Petroleum Geologists, Bulletin, v. 61, p. 809. 

SUMMARY: Beds dip westward and generally increase in dip westward toward the 

border fault; local faulting may occur on the eastern margin. 

Paleocurrent data indicate that sediments were derived from the 

west. 2800 feet ~f basalt is present as at least five flows toward 

the western margin. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
781 A 

Page 257 

LINDHOLM, ROY C., 1977, The Culpeper Basin, Virginia: a case study in 

which Triassic tectonic patterns were inherited from pre-existing 

structural fabrics: Geological Society of America, Abstracts with 

Programs, v. 9, p. 1070. 

SUMMARY: East-dipping pre-Triassic foliation is shown to be responsible for 

east-dipping normal faults on the west edges of the basin. The 

converse is true for border faults along eastern edges. Coarse 

sediment deposition fining upward is attributed to renewed border 

faulting. Tilting of beds caused ponding of basalt toward the west~ 

KEYWORDS: structure 

faults 

sedimentation 

GEOGRAPHIC AREA: Culpeper Basin, Virginia; Regional 

782 A LINDHOLM, ROY C., 1978, Tectonic control of sedimentation in 

Triassic-Jurassic Culpeper Basin, Virginia: American Association of 

Petroleum Geologists, Bulletin, v. 62, no. 3, p. 537. 

SUMMARY: A first fining upward sequence followed incipient border faulting. 

A second coarse sequence of border conglomerates indicates renewed 

faulting. Tilting to the west occurred before deposition ended, as 

the upper basalt flows and upper lacustrine beds thicken toward the 

western border fault, indicating ponding. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

783 p LINDHOLM, ROY c., 1978, Triassic-Jurassic faulting in Eastern North 

America - a model based on pre-Triassic structures: Geology, v. 6, p. 

365-368. 

SUMMARY: Analysis of structural data from bordering pre-Triassic rocks 

indicates that, where a western-east dipping border fault occurs, 

the pre-Triassic foliation is parallel to the fault and dipping 

east. The converse is true for eastern border, west dipping faults. 

The tectonic development of these basins is attributed to 

pre-existing foliation which dictates on which side the border fault 

will develop (see Leavy, 1980). 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Regional 

DATA: Plots: (Newark, Gettysburg, N. England, Deep River) structure 
Page 258 

784 p LINDHOLM, ROY C., 1979, Geologic history and stratigraphy of the 

Triassic-Jurassic Culpeper Basin, Virginia: summary: Geological 

Society of America, Bulletin, v. 90, p. 995-997. 

SUMMARY: This paper presents a revision of the basin•s stratigraphic 

nomenclature for the Culpeper Basin, Virginia. A general fining 

upward sequence is represented by (from lowest): Reston Formation, 

Manassas s.s., and the Bull Run Formation. Coarse conglomerates 

derived from the Blue Ridge mark renewed margin faulting. Upper 

basalt flows with intercalated lacustrine beds (Buckland Formation) 

are in turn overlain by western conglomerate to shale facies 

(Waterfall Formation). 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Maryland 

785 P: LINDHOLM, ROY C., 1982, Flat stratification: two ancient examples: 

Journal of Sedimentary Petrology, v. 52, no. 1, p. 227-231. 

SUMMARY: This structure, produced by migration of small (5 mm or less in 

height, 10 em or less ampl.) ripples in shallow (5 mm or less) 

water, is observed in the Bull Run siltstone of the Culpeper Basin. 

This planar stratification correlates with the hypothesized shallow, 

sheet-washed, mud-flat environment of the formation. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

DATA: Photos: sedimentary structures 

786 T LINDSKOLD, JOHN ERIC, 1961, Geology and petrology of the Gainesville, 

Virginia, Quadrangle: M.S. Thesis, George Washington University, 50 

p. 

KEYWORDS: general geology 

petrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Prince William Co., Gainesville 

Quad. 

787 T LINEBERGER, DAVID H., JR., 1983, Geology of the Chatham fault zone, 

Pittsylvania County, Virginia: M.S. Thesis, Universtiy of North 

Carolina, 74 p. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Danville Basin, Virginia 
Page 259 

788 p LITTLE, RICHARD D., 1982, Lithified armored mud balls of the Lower 

Jurassic Turners Falls sandstone, north-central Massachusetts: 

Journal of Geology, v. 90, p. 203-207. 

SUMMARY: Study of the fluvial, armored mud balls indicates that they formed 11 quickly, from nearby mud deposits, in a distal fan environment ... Their ellipsoidal shape suggests modification of disc-shaped mud 

clasts by stream abrasion. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Mise: sample locality 

DATA: Photos: specimens 

789 M 

Plots: major axis vs. minor axis 

LOCKWOOD, KESSLER AND BARTLETT, INC., 1973, Aeromagnetic map of 

northern Frederick County, Maryland and parts of adjacent counties in 

Maryland and Pennsylvania: U.S. Geological Survey Open-File (unnumbered). 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland, Pennsylvania 

MAPS: Geophys: aeromagnetism [1:62,500] 

790 p LODDING, WILLIAM, AND STURM, EDWARD, 1968, Weathering and orientation 

in Triassic clay sediments of New Jersey: Clays and Clay Minerals, v. 

16, p. 179-186. 

SUMMARY: Weathered Lockatong Fm. (illite-chlorite-feldspar) becomes nearly 

entirely kaolinite in the upper clay zone. The Brunswick shale 

consists largely of illite with minor kaolinite, quartz, feldspar, 

and montmorillonite. Similarly here, kaolinite increases upward, but illite (30%) remains. Unlike chlorite, illite is strongly 

aligned in the weathered zone. Differences in clay mineralogy in 

the two formations are attributed to different parent mineralogies 

and not to different diagenesis. 

KEYWORDS: sedimentation 

sediments 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Middlesex Co. 

DATA: Chern. (type of data): major oxide (Brunswick, Lockatong) 

Plots: mineralogy (Brunswick, Lockatong) 
Page 260 

791 A LOMANDO, ANTHONY J., AND ENGELDER, TERRY, 1980, Strain within the 

rocks of the Newark Basin, New York: Geological Society of America, 

Abstracts with Programs, v. 12, p. 70-71. 

SUMMARY: Deformed calcite of the Brunswick Formation indicates a northtrending maximum compressive strain (E1) decreases from 60° along 

the western fault to 20° in the basin center. The 60°E1 refers to 

normal faulting, while the 20°E1 refers to a maximum strain parallel 

to bedding that is responsible for N 40°E left-lateral, strike slip 

faults within the basin. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Newark Basin, New York 

792 M: LONDQUIST, C.J., 1973, Contour map of the bedrock surface, Ludlow 

Quadrangle, Massachusetts: U.S. Geological Survey, Map MF-503a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geol: depth to bedrock [1:24,000] 

793 M: LONDQUIST, C.J., 1973, Contour map of the bedrock surface, Mount Tom 

Quadrangle, Massachusetts: u.s. Geological Survey, Map MF-504a. 

KEYWORDS: surficiai geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geol: depth to bedrock [1:24,000] 

794 M: LONDQUIST, C.J., 1973, Depth to bedrock, Hampden Quadrangle, 

Massachusetts-Connecticut: U.S. Geological Survey, Map MF-486b. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geol: depth to bedrock [1:24,000] 
Page 261 

795 M : LONDQUIST, C.J., 1974, Contour map of the bedrock surface, Mount Toby 

Quadrangle, Massachusetts: U.S. Geological Survey, Map MF-621a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geol: depth to bedrock [1:24,000] 

796 M: LONDQUIST, C.J., 1974, Map showing depth to bedrock, Shelburne Falls 

Quadrangle, Massachusetts: U.S. Geological Survey, Map MF-591a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geol: depth to bedrock [1:24,000] 

797 M : LONDQUIST, C.J., 1976, Map showing depth to bedrock, Mount Holyoke 

Quadrangle, Massachusetts: U.S. Geological Survey, Map MF-640b. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geol: depth to bedrock [1:24,000] 

798 M LONDQUIST, C.J., AND HANSEN, B.P., 1974, Contour map of the bedrock 

surface, Greenfield Quadrangle, Massachusetts: U.S. Geological 

Survey, Map MF-629a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geol: depth to bedrock [1:24,000] 

799 M LONDQUIST, C.J., AND LEO, G.W., 1974, Map showing depth to bedrock, 

Ludlow Quadrangle, Massachusetts: U.S. Geological Survey Miscellaneous Field Studies, Map MF-503b. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geol: depth to bedrock [1:24,000] 
800 A 

Page 262 

LONGWELL, C.R., 1937, Geologic interpretation of gravity anomalies in 

Connecticut and Massachusetts: Geological Society of America Proceedings, 1936, p. 86-87. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Basin, Massachusetts 

801 P : LONGWELL, C.R., 1937, Sedimentation in relation to faulting: 

Geological Society of America Bulletin, v. 48, p. 433-442. 

KEYWORDS: sedimentation 

faults 

tectonics 

GEOGRAPHIC AREA: Regional 

802 p LONGWELL, C.R., 1943, Geologic interpretation of gravity anomalies in 

the southern New England- Hudson Valley region: Geological Society 

of America Bulletin, v. 54, p. 555-590. 

SUMMARY: The Hartford Basin is poorly delineated by gravity in this study. 

Implications for the structural style and origin of the basin are 

not discussed. (Of interest is the occurrence of a gravity high axis which trends N-S and just outside of the western basin margin 

and continues south into New Jersey.) 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

803 p LONGWELL, C.R., AND DANA, E.S., 1932, Walks and rides in central 

Connecticut and Massachusetts: Published by the authors (New Haven, 

Connecticut), 229 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Basin, Massachusetts 
Page 263 

804 p LONGWELL, CHESTER R., 1922, Notes on the structure of the Triassic 

rocks in Southern Connecticut: American Journal of Science, 5th 

Series, v. 4, p. 223-236. 

SUMMARY: The author describes the sediments and basalt present in a tunnel 

through Saltonstall Ridge several miles east of New Haven. Normal 

faults occur and are related to regional structure. The eastern 

fanglomerates are discussed, and it is suggested that their basalt 

fragments indicate that basalt flows spread east of the border 

fault. Beds dip progressively greater toward the eastern border 

fault. 

KEYWORDS: structure 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Mise: location of tunnel 

805 p LONGWELL, CHESTER R., 1928, The Triassic of Connecticut: American 

Journal of Science, 5th Series, v. 16, p. 259-263. 

SUMMARY: This is chiefly a critique of the work of J.K. Roberts (1928) on the 

Virginia Triassic in which he proposes a synformal trough model for 

Connecticut. The author, citing structure and sedimentologic evidence, favors an eastern fault bounded half-graben in which beds dip 

homoclinally eastward. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut; Regional 

MAPS: Section: sketches 

806 F LONGWELL, CHESTER R., 1933, The Triassic belt of Massachusetts and 

Connecticut: International Geological Congress, 16th, Guidebook 1, 

Excursion A-1, p. 93-118. 

SUMMARY: The general stratigraphy, structure, and paleontology of the area is 

outlined, and field trips include Amherst to Hartford and New Haven 

to New York. A broad-terraine hypothesis is favored whereby the 

Newark and Hartford Basins represent the remnant limbs of an 

anticlinally-arched graben. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts 

MAPS: Geol: sketches 

Section: cross sections, block diagrams {sketches) 
Page 264 

807 PM: LONGWILL, STANLEY M., AND WOOD, CHARLES R., 1965, Ground-water 

resources of the Brunswick Formation in Montgomery and Berks Counties, 

Pennsylvania: Pennsylvania Geological Survey, Water Resource Report 

W22, 59 p. 

SUMMARY: Water yield i,s greater than that of the Lockatong Fm., and wells 

drilled below 200 ft. will obtain maximum yields. Water is 

generally harder than that of the Lockatong, is of the calciumsulfate type, and dissolved-solids content is 302 ppm (avg). 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery Co., Berks Co. 

MAPS: Geol: [1:62,500] 

Section: well logs 

Mise: well locations 

DATA: Chern. (type of data): water 

Plots: yields vs. depth; Mg, Na, Ca vs. dissolved-solids content 

808 P LORENZ, JOHN, 1976, Triassic sediments and basin structure of the 

Kerrouchen Basin, Central Morocco: Journal of Sedimentary Petrology, 

v. 46, no. 4, p. 897-905. 

SUMMARY: This elongated basin in the southern High Atlas is underlain by 

Paleozoic metamorphics. Coarse clastics eroded from granites (SE 

part of basin) and from meta-sediments (NE part of basin) deposited in the down-faulted (SE) and downwarped basin (NE). With diminished 

tectonic activity, mudflat deposits covered the coarser sediments. 

Basalts are intercalated with these upper mudstones. 

KEYWORDS: sedimentation 

general geology 

GEOGRAPHIC AREA: Morocco 

MAPS: Geol: sketches 

Section: block diagrams 

DATA: Plots: sedimentary textures 
809 p 

Page 265 

LOWE, KURT E., 1959, Structure of the Palisades intrusion at 

Haverstraw and West Nyack, N.Y.: New York Academy of Sciences, 

Annals, v. 80, p. 1127-1138. 

SUMMARY: Quarries at these two localities provide information on the nature 

of the contact between the intrusion and the sediments. At 

Haverstraw, the southwest contact dips more steeply (40°) than the 

dip of sediments (16°) or the northeast contact (11°). Leaning 

polygonal columns exposed in the quarry support the steepening. It 

is shown that the intrusion is dikelike. (Discussion by R.W. 

Fairbridge and H.D. Thompson follows.) 

KEYWORDS: structure 

diabase 

GEOGRAPHIC AREA: Newark Basin, New York 

MAPS: Mise: location of quarries 

DATA: Photos: quarries 

810 T LUCANIA, J.A., 1974, The limestone cobble conglomerate and associated 

Ladentown basalt, Rockland County, New York: M.S. Thesis, Brooklyn 

College. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New York 

811 p LULL, RICHARD SWAN, 1904, Fossil footprints of the Jura Trias of North 

America: Boston Society of Natural History, Memoir 5, no. 11, p. 

461-557. 

SUMMARY: Detailed descriptions are presented of the ichnology of reptilian 

species found primarily in the Hartford Basin. Discussions of 

morphology and an extensive bibliography are included. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 
Page 266 

812 P : LULL, RICHARD SWANN, 1915, Triassic life of the Connecticut Valley: 

Connecticut Geological and Natural History Survey, Bulletin 24, 285 p. 

SUMMARY: This extensive work deals with the development of life in the 

Hartford Basin and describes in detail the fish, reptile, plant and 

other fossil remains present. Each species is described, and 

sketches, photographs, and sketch maps are included. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

813 p LULL, RICHARD SWANN, 1953, Triassic life of the Connecticut Valley 

(revised edition): Connecticut Geological and Natural History Survey, 

Bulletin 81, 366 p. 

SUMMARY: This extensive work describes the species of flora and aquatic and 

terrestrial vertebrates present as fossil skeletons and footprints 

in the Triassic. Sketches, photographs, and sketch maps of 

localities are presented. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

814 PM: LUNDGREN, LAWRENCE, JR., 1979, The bedrock geology of the Haddem 

Quadrangle: Connecticut Geological and Natural History Survey, 

Quadrangle Report 37, 44 p. 13 figs. 

SUMMARY: The Higganum diabase dike crosses the quadrangle, and it is 

described in the text as consisting of the common plagioclase-augite 

diabase as well as a coarser leuco-diabase composed of quartz, 

biotite, K-feldspar, and angular intergrowths of plagioclase and 

K-feldspar. Localities of dike exposures are given. No detailed 

petrography or chemistry is presented. 

KEYWORDS: general geology 

diabase 

mineralogy 

petrology 

uEOGRAPHIC AREA: Connecticut, Middlesex Co. (not in basin) 

MAPS: Geol: [1:24,000] 
Page 267 

815 PM: LUTTRELL, GWENDOLYN W., 1966, Base- and precious-metal and related ore 

deposits of Virginia: Virginia Division of Mineral Resources, Mineral 

Resources Report 7, 167 p. 

SUMMARY: Abandoned mines, prospects, and occurrences of copper and barite 

mineralization in the Triassic-Jurassic basins of Virginia are 

described. Most Mesozoic occurrences are located in northern 

Virginia. 

KEYWORDS: bibliography 

economic geology 

copper 

barite 

GEOGRAPHIC AREA: Virginia 

MAPS: Mise: mineral resource [1:500,000] 

816 p LYELL, SIR CHARLES, 1847, On the structure and probable age of the 

coal field of the James River, near Richmond, Virginia: Quarterly 

Journal of the Geological Society of London, v. 3, p. 261-280. 

SUMMARY: The general stratigraphy, the organic content of the coal, observations of the coal altered to coke adjacent to basalt, and the fossil 

fish remains are discussed. It is concluded that the coal beds are 

equivalent to the lower Oolitic or Jurassic of Europe. Comparisons 

are also made to the Paleozoic coal fields near St. Etienne, France. 

KEYWORDS: paleontology 

general geology 

GEOGRAPHIC AREA: Richmond Basin, Virginia 

DATA: Photos: fossil fish (sketches) 

817 P : LYMAN, B.S., 1893, The Great Mesozoic Fault of New Jersey: American 

Philosophical Society, Proceedings, v. 31, p. 314-317. 

SUMMARY: Based upon the presence of a major fault in eastern Bucks County, 

Pennsylvania, that places a pre-Triassic horst within the basin, the 

fault is extended into the New Jersey Triassic. Evidence for the 

extension is provided by topography and the character of the sediments on either side of the fault. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: [1:126,720] 
Page 268 

818 P: LYMAN, B.S., 1894, Further on the age of the Newark brownstone: 

American Philosophical Society Proceedings, v. 33, p. 9-10. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

819 p LYMAN, B.S., 1894, Some New Red horizons: American Philosophical 

Society Proceedings, v. 33, p. 192-215. 

KEYWORDS: sediments 

GEOGRAPHIC AREA: Regional 

820 p LYMAN, BENJAMIN SMITH, 1895, Report on the new red of Bucks and 

Montgomery Counties: Geological Survey of Pennsylvania, 2nd, Final 

Report, v. 3, Part 2, p. 2589-2638. 

SUMMARY: From lower to upper units, the area is divided into Norristown red 

sh., Gwynedd black sh., Lansdale red sh., Perkasie green sh., and 

Pottstown red sh. Coal occurrences (2-inch seams) occur in the 

Gwynedd, and localities are given. A gold-bearing conglomerate (?) 

was found near Yardleyville. Copper occurrences and the New Galena 

and Perkiomen lead-zinc prospects are mentioned. Fossil plants and 

reptile tracks are sketched. 

KEYWORDS: general geology 

paleontology 

economic geology 

gold 

copper 

lead 

zinc 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks County, Montgomery County 

821 p LYMAN, BENJAMIN SMITH, 1898, Copper traces in Bucks and Montgomery 

Counties: Journal of the Franklin Institute, v. 146, no. 6, p. 416-

423. 

SUMMARY: About 30 localities of copper occurrences are briefly described in 

the Triassic area. It is recognized that the copper carbonates 

occur in darker shales (green to black), and that their precipita- tion is due to reduction of copper sulfate by the organic matter in 

these shales. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks County, Montgomery County 
822 p 

Page 269 

LYMAN, BENJAMIN SMITH, 1902, Lodel Creek and Skippack Creek: 

Philadelphia Academy of Natural Sciences, Proceedings, v. 53, p. 

604-607. 

SUMMARY: A quarry (Fisher's Quarry) at Lodel Creek yields slabs of red shale 

containing dinosaur footprints and 2-inch (amplitude) ripple marks. 

Between Norristown and Collegeville at Skippack Creek, a 21-inch x 

8-inch Cyad leaf was found in red sandstone. These features are 

indicative of a shallow estuary environment. (Locations are not 

precisely given.) 

KEYWORDS: paleontology 

sedimentation 

uEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery County 

M 

823 p MACCARTHY, GERALD R., 1936, Magnetic anomalies and geologic structures 

of the Carolina Coastal Plain: Journal of Geology, v. 44, p. 396-406. 

SUMMARY: A Triassic basin is outlined from Lynchburg, S.C. to Raeford, N.C. 

by magnetometer surveys. 

KEYWORDS: buried basins 

geophysics 

magnetism 

GEOGRAPHIC AREA: North Carolina 

824 M MACLACHLAN, D.B., 1976, Allentown East Quadrangle, Pennsylvania: 

in, Berg, T.M., and Dodge, C.M., eds., 1981, Atlas of Preliminary Geologic Quadrangle Maps of Pennsylvania, Pennsylvania Geological 

Survey, Map 61, p. 17. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lehigh Co., Allentown East Quad. 

MAPS: Geol: [1:24,000] 
Page 270 

825 M MACLACHLAN, D.B., 1976, Hellertown Quadrangle, Pennsylvania: in, 

Berg, T.M., and Dodge, C.M., eds., 1981, Alas of PreliminaryiGeologic 

Quadrangle Maps of Pennsylvania, Pennsylvania Geological Survey, Map 

61, p. 271. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co., Lehigh Co., 

Northampton Co., Hellertown Quad. 

MAPS: Geol: [1:24,000] 

826 M MACLACHLAN, D.B., AND BERG, T.M., 1977, Hershey Quadrangle, Pennsylvania: in, Berg, T.M., and Dodge, C.M., eds., 1981, Atlas of 

Preliminary Geologic Quadrangle Maps of Pennsylvania, Pennsylvania 

Geological Survey, Map 61, p. 272. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Dauphin Co., Hershey Quad. 

MAPS: Geol: [1:24,000] 

827 PM: MACLACHLAN, D.B., BUCKWALTER, T.V., AND MCLAUGHLAN, D.B., 1975, 

Geology and mineral resources of the Sinking Spring 7.5-minute 

Quadrangle, Berks and Lancaster Counties, Pennsylvania: Pennsylvania 

Geological Survey, Atlas 177d, 228 p. 

SUMMARY: Included in text are discussions of the sandstone and conglomerate 

of the Hammer Creek Fm.; sedimentation and provenance; diabase 

mineralogy, structure, intrusion thickness, and contact metamorphic 

effects; and a detailed study of the structure. The Wheatfield 

magnetite deposit occurs along the northern basin margin but is not 

described in detail. 

KEYWORDS: general geology 

structure 

economic geology 

iron 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks County, Lancaster County, 

Sinking Spring Quad. 

MAPS: Geol: [1:24,000] 

Section: Hammer Creek Fm. 

Mise: pegmatitic diabase 

DATA: Photos: outcrops 

Plots: stereograms (bedding) 
Page 271 

828 M MACLACHLAN, DAVID B., 1983, Geology and mineral resources of the 

Reading and Birdsboro Quadrangles, Berks County, Pennsylvania: 

Pennsylvania Geological Survey, Atlas 187cd. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks Co., Reading Quad,, 

Birdsboro Quad. 

MAPS: Geol: [1:24,000] 

829 p MAHER, JOHN C., 1971, Geologic framework and petroleum potential of 

the Atlantic Coastal Plain and continental shelf: U.S. Geological 

Survey Professiona Paper 659, 98 p. 

SUMMARY: Based on well data, buried basins are indicated under the Maryland, 

Alabama, and Georgia Coastal Plains. These early Mesozoic rocks are 

considered good reservoirs for oil but not good source rocks. A 

table presents well locations and lithologic information. 

KEYWORDS: buried basins 

economic geology 

oil 

GEOGRAPHIC AREA: Regional 

MAPS: Section: (well logs-stratigraphic) Coastal Plain (Md., Alabama, 

Georgia) 

830 P : MANCHESTER, J.G., 1931, The minerals of New York City and its 

environs: Bulletin of the New York Mineralogical Club, v. 3, 64 p. 

SUMMARY: This volume describes the mineralogy of some of the abandoned copper 

mines and prospects in Triassic rocks in northern New Jersey. 

KEYWORDS: mineralogy 

economic geology 

copper 

uEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 272 

831 P : MANCHESTER, JAMES G., 1919, The minerals of the Bergen Archways: 

American Mineralogist, v. 4, no. 9, p. 107-116. 

SUMMARY: Exposures along the Bergen Hill-Palisades intrusion are mentioned 

and zeolite minerals are described from the Berge~ archways construction. Minerals discussed include: diabantite, chalcopyrite, 

calcite, sphalerite, analcite, datolite, and apophyllite. 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Bergen Co. 

DATA: Photos: minerals 

832 p MANN, VIRGIL I., AND ZABLOCKI, FRANKS., 1961, Gravity features of the 

Deep River-Wadesboro Triassic Basin of North Carolina: Southeastern 

Geology, v. 2, no. 4, p. 191-216. 

SUMMARY: Gravity studies indicate that the basin is not a significant gravity 

feature and cannot be easily delineated. The Durham, Sanford, and 

Wadesboro Basins are deepest (respectively) in their northeast and 

southeast, central, and southeastern parts. The Sanford Basin continues under the Coastal Plain to the south. The NW Durham Basin 

consists of numerous fault blocks while the SE is a graben against 

the Jonesboro Fault. 

KEYWORDS: geophysics 

gravity 

structure 

GEOGRAPHIC AREA: Deep River Basin, Wadesboro Basin, North Carolina 

MAPS: Geophys: gravity profiles 
833 A 

Page 273 

MANSPEIZER, WARREN, 1969, Paleoflow structures in Late Triassic 

basaltic lava of the Newark Basin and their regional implication: 

Geological Society of America, Abstracts with Programs, v. 1, pt. 7, 

p. 142. 

SUMMARY: Vesicles in the First, Second, and Third Watchung basalts indicate 

respective flow directions of N49E, N70E, and S82W. The former two 

flowed east conforming to the paleoslope, and the latter flowed west 

and may be genetically related to the Palisades Sill, which, 

therefore, postdates the first two flows. The Talcott, Holyoke, and 

Hampden basalts flowed east and may be genetically related to West 

Rock and Mt. Carmel. 

KEYWORDS: structure 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey; Hartford Basin, Connecticut, 

Massachusetts 

834 A MANSPEIZER, WARREN, 1969, Radial and concentric joints, First Watchung 

Mountains, New Jersey: Geological Society of America, Abstracts with 

Programs, v. 1, pt. 1, p. 38. 

SUMMARY: An exposure along Route 280 in Orange exposes a complete Tomkeieff 

structural sequence of colonnade (columns) and entablature (curved 

joints). Radial and concentric joints developed in response to 

undulating near-surface isotherms that paralleled surface 

topography. 

KEYWORDS: structure 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Essex Co., Orange Quad. 
835 F 

Page 274 

MANSPEIZER, WARREN, 1980, Rift tectonics inferred from volcanic and 

clastic structures: in, Manspeizer, W., ed., Field Studies of New 

Jersey Geology and Guide to Field Trips, 52nd Annual Meeting, N.Y. 

State Geological Association, p. 314-350. 

SUMMARY: This guidebook concerns structures within the Passaic and Feltville 

Formations and the First and Second Watchung basalts. Features 

include pillow lavas, palagonite forset bedding, and tumuli. The 

tectonic and structural history of the basins with reference to the 

Newark is outlined. It is shown that the Ramapo border fault did 

not provide ingress for the magmas of the Watchung Mountains. 

KEYWORDS: structure 

basalt 

sedimentation 

tectonics 

taults 

~~OGRAPHIC AREA: Newark Basin, New Jersey; Regional 

MAPS: Geol: sketch (field stops) 

Section: stratigraphic sections 

DATA: Photos: outcrops, sedimentary structures 

836 p MANSPEIZER, WARREN, 1981, Early Mesozoic basins of the Central 

Atlantic passive margins: American Association of Petroleum 

Geologists, Education Course Note Series No. 19, Part 4, 60 p. 

SUMMARY: This extensive work deals with the tectonic evolution, sedimentation 

and volcanism of the Atlantic margins during the early Mesozoic. 

The author stresses the view that such development not be considered an end-phase of the Appalachian Revolution, but the initial 

phase of the Atlantic tectonic cycle. 

KEYWORDS: tectonics 

general geology 

sedimentation 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: sketches, Morocco, Newark; block diagrams 

Section: stratigraphic (U.S. and Morocco) 

DATA: Plots: correlation by fossils 
Page 275 

837 P : MANSPEIZER, WARREN, 1982, Triassic-Liassic basins and climate of the 

Atlantic passive margin: Geologische Rundschau, v. 71, p. 895-917. 

SUMMARY: The physiographic and climatic evolution of the Atlantic rim rift 

basins is outlined. The model is based upon tracking of the 

Laurasian Plate over hot spots, and the generation of assymetric 

basins by strike-slip motion. 

KEYWORDS: climate 

sedimentation 

GEOGRAPHIC AREA: Regional 

838 A MANSPEIZER, WARREN, 1983, Inherited Appalachian-Hercynian structures 

and their impact on Triassic-Liassic "rifting11 : Geological Society of 

America, Abstracts with Programs, v. 15, no. 3, p. 184. 

SUMMARY: The evolution of rifting based on pre-existing transform boundaries 

is outlined. Continued stress along these zones broke the passive 

margin into wrench-induced rift basins (Newark and Hartford) and 

thrust fault-induced, listric normal thrustfault controlled basins (e.g. 

Richmond). 

KEYWORDS: tectonics 

structure 

GEOGRAPHIC AREA: Regional 

tl39 A MANSPEIZER, WARREN, PUFFER, JOHN H., AND COUSMINER, HAROLD L., 1976, 

Subduction, rifting, and sea floor spreading: a volcanic record in 

Morocco and Eastern North America: Geological Society of America, 

Abstracts wtih Programs, v. 8, p. 224-225. 

SUMMARY: Moroccan early Mesozoic volcanics include: Ladinian andesites to 

the northeast, High Atlas olivine- and quartz-tholeiites (198 m.y.), 

and the Meseta and Middle Atlas low-alkali, quartz-tholeiites (187 

m.y.). The olivine- and quartz-tholeiites and the low-alkali 

tholeiites are similar to the York Haven-Watchung and Quarryville 

basalts in the Newark basin, respectively. Andesites are attributed 

to subduction, the other tholeiites to incipient and later rifting. 

KEYWORDS: geochemistry 

petrology 

basalt 

general geology 

GEOGRAPHIC AREA: Morocco 
Page 276 

840 p MANSPEIZER, WARREN, PUFFER, JOHN H., AND COUSMINER, HAROLD L., 1978, 

Separation of Morocco and Eastern North America: a Triassic-Liassic 

stratigraphic record: Geological Society of America, Bulletin, v. 89, 

p. 901-920. 

SUMMARY: (See same authors, 1976.) Also: The Early Mesozoic of Morocco is 

divided into three zones: Oran Meseta - andesite, carbonate 

evaporites; High Atlas (SW) - red beds, evaporites, tholeiites 

(equals York Haven type); Meseta (Wand Central)- evaporites, qtz. 

tholeiites {equals Rossville type). A four-stage tectonic model is 

developed to explain these features. 

KEYWORDS: general geology 

structure 

geochemistry 

basalt 

geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Morocco 

MAPS: Geol: sketches of provinces 

Section: stratigraphic columns 

DATA: Chern. (type of data): K-Ar; tholeiites (major oxide, trace elements, 

norms) 

Plots: differentiation trends 

841 P MARINE, I. WENDELL, 1974, Geohydrology of buried Triassic basin at 

Savannah River Plant, South Carolina: American Association of 

Petroleum Geologists, Bulletin, v. 58, no. 9, p. 1825-1837. 

SUMMARY: Seismic and gravity data indicate the basin is 30 miles long and 6 

miles wide and contains 5300 feet of mudstone, sandstone, and border 

conglomerate, but no coal or igneous rocks. Permeability and 

porosity is low. Formational waterhead exceeds overlying Coastal 

Plain aquifers. Water chemistry is presented. 

KEYWORDS: general geology 

buried basins 

hydrology 

geophysics 

seismic profiles 

gravity 

GEOGRAPHIC AREA: South Carolina, Georgia, Dunbarton Basin 

DATA: Chern. (type of data): water (gas, major elements) 
Page 277 

842 A MARINE, I. WENDELL, 1976, Structural model of the buried Dunbarton 

Triassic Basin in South Carolina and Georgia: Geological Society of 

America, Abstracts with Programs, v. 8, no. 2, p. 225. 

SUMMARY: This basin, 350 meters below the Coastal Plain cover, lies on the 

state line 32 km SE of the fall line. Geophysics indicates that the 

basin consists of fault blocks. No faulting has occurred since an 

erosional surface on top of the Triassic was developed 100 m.y. ago. 

KEYWORDS: buried basins 

structure 

GEOGRAPHIC AREA: South Carolina, Georgia, Dunbarton Basin 

843 p MARINE, I. WENDELL, AND SIPLE, GEORGE E., 1974, Buried Triassic basin 

in the Central Savannah River Area, South Carolina and Georgia: 

Geological Society of America, Bulletin, v. 85, p. 311-320. 

SUMMARY: Data from aeromagnetics, seismic refraction, and wells delineates 

the Dunbarton Basin 32 km SE of Augusta. The basin is buried 

beneath 350 meters of coastal sediment, possesses a well-defined 

(geophysics) western margin, contains 500 meters of a western fanglomerate, and at least 900 meters of red mudstone and sandstone in 

its center. Hydrologic data are given. 

KEYWORDS: buried basins 

hydrology 

geophysics 

aeromagnetism 

seismic profiles 

GEOGRAPHIC AREA: South Carolina, Georgia, Dunbarton Basin 

MAPS: Geol: (regional) buried and exposed basins 

Geophys: aeromagnetic 

DATA: Chern. (type of data): water 

Photos: drill core 

Plots: redbed particle size 

844 M MARR, JOHN D., JR., 1980, The geology of the Willis Mountain Quadrangle, Virginia: Virginia Division of Mineral Resources, Publication 25. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Farmville Basin, Virginia, Buckingham Co., Cumberland Co., 

Willis Mountain Quad. 

MAPS: Geol: [1:24,000] 
Page 278 

845 PM: MARR, JOHN D., JR., 1981, Stratigraphy and structure (Triassic system 

by M.B. McCollum): in, Geologic Investigations in the Willis 

Mountain and Andersonville Quadrangles, Virginia, Virginia Division of 

Mineral Resources Publication 29, p. 3-8. 

SUMMARY: Triassic coarse fanglomerate occurs in the NW part of the Farmville 

Basin within theSE corner of the Willis Mtn. Quadrangle. The basin 

is bordered on its NW side by a high-angle, SE-dipping normal fault. 

The fanglomerate is composed of pebble- to boulder-sized metamorphic 

clasts within a fine-grained arkosic matrix. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Farmville Basin, Virginia, Cumberland Co., Willis Mtn. Quad. 

MAPS: Geol: [1:24,000] 

846 M MARR, JOHN D., JR., 1984, Geologic map of the Pittsville and Chatham 

Quadrangles, Virginia: Virginia Division of Mineral Resources 

Publication 49. 

SUMMARY: A small portion of the southeast corner of the Chatham quadrangle is 

underlain by Triassic rocks of the Danville basin. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Danville Basin, Virginia, Pittsylvania County, Chatham 

Quadrangle 

MAPS: Geol: [1:24,000] 

847 A MARTELLO, ANGELA R., GRAY, NORMAN H., PHILPOTTS, ANTHONY R., DOWLING, 

JOHN J., and KOZA, DOUGLAS M., 1984, Mesozoic diabase dikes of southeastern New England: Geological Society of America, Abstracts with 

Programs, v. 16, no. 1, p. 48. 

SUMMARY: Four diabase dikes are correlated with basalt flows in the Hartford 

Basin, Connecticut, on the basis of petrologic and geochemical similarities. 

KEYWORDS: diabase 

petrology 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 279 

848 p MASON, BRIAN H., 1960, Trap rock minerals of New Jersey: New Jersey 

Geological Survey, Bulletin 64, 51 p. 

SUMMARY: The geologic setting, paragenesis, quarry localities and individual 

minerals are described emphasizing information from previous literature. Zeolites as well as sulfides, native copper and silver, and 

carbonates are described. 

KEYWORDS: diabase 

basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: mineral specimens 

849 T MASSA, VITO, JR., 1979, A geophysical and geological investigation of 

the Edison copper mine area, Edison, New Jersey: M.S. Thesis, Rutgers 

University, 33 p. 

KEYWORDS: economic geology 

copper 

geophysics 

magnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

850 T MASTERSON, W.O., 1979, Potassium-argon dating of the Watchung basalt 

flows: Senior Paper Series, Yale University, Department of Geology and Geophysics, 13 p. 

KEYWORDS: basalt 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 280 

851 p MATTIS, ALLEN F., 1977, Nonmarine Triassic sedimentation, Central High 

Atlas Mountains, Morocco: Journal of Sedimentary Petrology, v. 47, 

no. 1, p. 107-119. 

SUMMARY: 1000 m of mudstone, sandstone, and conglomerate red beds with intercalated basalt flows in the upper part of the section occur in NEtrending basins whose sediment transport directi,on was parallel to 

the basin axis, and whose sediment source was of local Paleozoic 

provenance. Lacustrine and playa conditions occurred locally. 

Facies relationships are discussed. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Morocco 

MAPS: Section: geologic cross section; stratigraphic Mise: paleocurrents 

DATA: Photos: photomicrographs (sediments) 

852 p MAXEY, LAWRENCE R., 1973, Dolerite dikes of the New Jersey highlands: 

probable comagmatic relation with the Mesozoic Palisades Sill and 

dolerite dikes of Eastern United States: Geological Society of 

America, Bulletin, v. 84, p. 1081-1086. 

SUMMARY: Four quartz-tholeiites and one olivine-tholeiite dike of presumed 

early Mesozoic age that cut Precambrian rocks in northern N.J., 

contain high Ti02 that corresponds with Ti-rich Palisades sill 

dolerite (60% solidified) and the Palisades differentiation trend. 

Separation of the dike magma occurred at a later stage of 

differentiation than did the Palisades magma. 

KEYWORDS: geochemistry 

petrology 

diabase 

GEOGRAPHIC AREA: New Jersey (not in basin) 

MAPS: Geol: sketch 

DATA: Chern. (type of data): major oxide 

Plots: mafic index vs. Ti02; variation plots 
Page 281 

853 p MAYt PAUL R.t 1971t Pattern of Triassic-Jurassic diabase dikes around 

the North Atlantic in the context of predrift po~ition of the continents: Geological Society of Americat Bulletint v. 82t p. 1285-1292. 

SUMMARY: Early Mesozoic dolerite dikes from the eastern u.s.t northeastern 

South America, and northwestern Africa form a radial pattern convergent on the Blake Plateaut the Bahama Platform, and the Western 

Senegal Basin. The pattern corresponds to a net of principal 

stresses imposed by the upper mantle prior to incipient rifting. 

KEYWORDS: tectonics 

structure 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: regional dike patterns 

854 p MAY, V. JEFFt AND THOMAS, J.D.t 1968, Geology and ground-water 

resources in the Raleigh areat North Carolina: North Carolina 

Department of Water Resources, Division of Ground Watert Ground Water 

Bulletin No. 15t 135 p. 

SUMMARY: Water properties within Triassic rocks are presented, and it is 

shown that the rocks are poor aquifers and water is hard. Data 

include: well yield vs. deptht well locationst and chemistry. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

MAPS: Mise: well locations 

855 P : MCCAULEYt JOHN F., 1961t Uranium in Pennsylvania: Pennsylvania 

Geological Surveyt Bulletin M43t 71 p. 

SUMMARY: Several uranium occurrences in the arkosic Stockton Formation are 

described. Uranium is associated with ferruginous zones with pyrite 

common. Meta-autunite and metazeunerite occur. Minor amounts of 

zirconiumt arsenict and zinc were detected by qualitative analysis. 

KEYWORDS: economic geology 

uranium 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co., Stockton Quad. 

MAPS: Mise: uranium occurrences 
856 p 

Page 282 

MCCOLLUM, MICHAEL B., 1971, Basalt flows in the Triassic Culpeper 

Basin, Virginia: Geological Society of America, Bulletin, v. 82, p. 

2331-2332. 

SUMMARY: Five basalt units occur in the western part of the basin and are 

best exposed near Buckland. A gabbro feeder dike is exposed near 

Haymarket. The thickness of these flows and their intercalated 

sediments is about 5500 feet with three flows of 175ft., one of 500 

ft., and a multiflow unit of 1600 ft. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: sketch 

857 P MCCUNE, A.R., THOMSON, K.S., AND OLSEN, P.E., 1984, Semionotid fishes 

from the Mesozoic great lakes of North America: in, Echelle, A.A., 

and Kornfield, I., (eds.}, Evolution of fish species flocks: 

University of Maine at Orono Press (Orono, Maine), p. 27-44. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

858 T MCDONALD, N.G., 1970, Paleontology and paleoecology of a previously 

undescribed locality of Triassic black shale near Durham, Connecticut: 

B.A. Thesis, Franklin and Marshall College, 73 p. 

KEYWORDS: paleontology 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

859 A MCDONALD, N.G., 1983, History of paleoichthyology in the Newark Supergroup basins, eastern North America: Geological Society of America, 

Abstracts with Programs, v. 15, no. 3, p. 121. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 
Page 283 

860 T : MCDONALD, NICHOLAS G., 1975, Fossil fishes from the Newark Group of 

the Connecticut Valley: M.S. Thesis, Wesleyan University, 250 p. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

861 F MCDONALD, NICHOLAS G., 1982, Paleontology of the Mesozoic rocks of the 

Connecticut Valley: in, Joesten, R., and Quarrier, S.S., eds., 

Guidebook for Field Trfps in Connecticut and South Central 

Massachusetts, New England Intercollegiate Geological Conference, 74th 

Annual Meeting, p. 143-172. 

SUMMARY: Field stops include: Turners Falls sandstone, Clathropteris locality at Holyoke, Dinosaur State Park at Rocky Hill, and the East 

Berlin Fm. at Cromwell (Conn.) and Westfield (Conn.). A review of 

fossil reptile, reptile track, fish, coprolite, invertebrate, and 

floral fossil species occurring in the Hartford Basin is presented. 

A comprehensive bibliography is included. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Section: stratigraphic columns 

862 A MCDONALD, NICHOLAS G., AND TEXTORIS, DANIEL A., 1984, Petrology of 

ooid-bearing silcrete, Upper Triassic Cherry Brook Basin, Connecticut: 

Geological Society of America, Abstracts with Programs, v. 16, no. 1, 

p. 49. 

SUMMARY: The petrology of a seven-meter-thick zone of siliceous mudstonesandstone in the Cherry Brook Basin (located 2 km west of the 

Hartford Basin) is discussed. This unit is interpreted as a 

paleosoil. 

KEYWORDS: sedimentology 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 284 

863 p MCFARLAN, E., AND DRAKE, C.L., eds., 1977, Geology of continental 

margins: American Association of Petroleum Geologists, Continuing 

Education, Course Note Series No. 5, 121 p. 

SUMMARY: This symposium volume contains articles and abstracts concerning the 

stratigraphy, structure, evolution, and mineral resources of the 

Atlantic Continental Margin system. Early Mesozoic offshore geology 

is included in the discussions. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Regional 

864 T MCGOWEN, MICHAEL, 1981, The Feltville Formation of the Watchung syncline, Newark Basin, New Jersey: M.S. Thesis, Rutgers University, 135 

p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

865 p MCHONE, J. GREGORY, 1978, Distribution, orientation, and ages of mafic 

dikes in Central New England: Geological Society of America, 

Bulletin, v. 89, p. 1645-1655. 

SUMMARY: Study of diabase dikes from New Hampshire and Vermont indicate that 

they intruded NE-trending fractures during the Late Triassic. Later 

intrusions of camptonite and spessartite dikes in the Jurassic and 

monchiquite dike~·in the Cretaceous indicate a rotating tensile 

stress field from NW (Triassic) to north and northeast (Cretaceous). 

KEYWORDS: general geology 

diabase 

geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: New England 

MAPS: Mise: dike distributions and patterns 

DATA: Chern. (type of data): K-Ar 
Page 285 

866 A MCHONE, J.G., 1982, Mesozoic rifting in northern New England: Geological Society of America, Abstracts with Programs, v. 14, p. 40. 

SUMMARY: Evidence of Mesozoic fault activity and the presence of Mesozoic 

alkalic intrusives suggest that NE-trending faults and basins in the 

Lake Champlain Valley, the Taconic Mtn. border zones, and the upper 

Connecticut River Valley may have been active during the Mesozoic. 

KEYWORDS: tectonics 

structure 

GEOGRAPHIC AREA: New England, Regional 

867 P : MCHONE, J.G., AND TRYGSTAD, J.C., 1982, Mesozoic mafic dikes of 

southern Maine: Maine Geology, Bulletin No. 2, p. 16-32. 

SUMMARY: Orientation, petrography, and geochemistry of Early Jurassic diabase 

dikes and Early Jurassic and later lamprophyre dikes are discussed. 

The dikes trend N 30°E (avg.), and the diabase dikes are considered 

alkali olivine basalts. A petrogenetic model is developed consistent with tectonic and magmatic processes. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: New England 

DATA: Chern. (type of data): diabase (major oxide, trace) 

Photos: photomicrographs 

868 T MCINTOSH, W.C., 1976, Paleomagnetic reversals in the Newark Group, 

Brunswick Formation of eastern Pennsylvania and central New Jersey: 

Bachelor•s Thesis, Princeton University, 78 p. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 
Page 286 

869 PM: MCKEE, E.D., AND OTHERS, 1959, Paleotectonic maps of the Triassic 

system: U.S. Geological Survey Miscellaneous Geologic Investigations 

Map I-300. 

SUMMARY: A brief discussion of the regional characteristics of the East Coast 

basins is given. Maps (with sources of information provided) 

include: basement rock type, lithofacies of basin sediments, sediment thickness, lithologic units (detailed for Deep River, N.C., and 

Newark, Pa., basins) only. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: [1:100,000] (Deep River), [1:250,000] (Newark), (others) 

[1:5,000,000] 

870 p MCKEOWN, F.A., CHOQUETTE, P.W., AND BAKER, R.C., 1954, Uranium 

occurrences in Bucks County, Pennsylvania, and Hunterdon County, New 

Jersey: U.S. Geological Survey, Trace Elements Investigations Report 

414, 36 p. 

SUMMARY: Eleven uraniferous argillite (Lockatong Fm.) and five uraniferous 

sandstone (Stockton Fm.) occurrences are described. Argillite 

occurrences contain .010% uranium (avg.) and as much as .034%, are 

limited to strike lengths of from several hundred to several 

thousand feet, and are 1 to 6 feet in thickness. Sandstone 

occurrences are associated with pyrite, limonite, and feldspar 

alteration, are smaller in extent, but are higher in grade within 

zones rich in mud pellets. 

KEYWORDS: economic geology 

uranium 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 

MAPS: Section: measured (Stockton Fm.) 

Mise: uranium locations [1:31,680]; Delaware Quar~ [1:360] 

871 P MCKOWN, MERTON, 1948, Quartz crystal casts after anhydrite from 

Paterson, N.J.: Rocks and Minerals, v. 23, p. 406-407. 

SUMMARY: Cavities within the Prospect Park basalt quarry yield quartz casts 

(up to 3 inches in length) after anhydrite. 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Passaic Co., Paterson Quad. 
Page 287 

872 p MCLAUGHLIN, D.B., 1933, A note on the stratigraphy of the Brunswick 

Formation (Newark) in Pennsylvania: Michigan Academy of Science, 

Papers, v. 18, p. 421-435. 

SUMMARY: Detailed geologic field studies of the black shale members in Bucks 

and Montgomery Counties revise earlier mapping and the nature of the 

shale members, which is here considered to be one of lateral continuity and not of a lenticular or fault-repetitive nature. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geol: sketches 

Section: columnar sections 

873 P MCLAUGHLIN, DEAN B., 1932, The thickness of the Newark Series in 

Pennsylvania and the age of the border conglomerate: Michigan Academy 

of Science, Papers, v. 16, p. 421-427. 

SUMMARY: Unlike J.K. Roberts' (1928) estimate of 2000 feet for the Culpeper 

Basin strata, a total thickness of over 20,000 feet is suggested for 

the eastern Pa. area and along the Delaware River section. The 

border conglomerates, as they chiefly occur within Brunswick units, 

are considered the youngest deposits in the basins, a fact in 

agreement with the work of Wherry (1913) and Stose (FairfieldGettysburg Folio). 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

874 P : MCLAUGHLIN, DEAN B., 1939, A great alluvial fan in the Triassic of 

Pennsylvania: Michigan Academy of Science, Papers, v. 24, p. 59-74. 

SUMMARY: Between the Gettysburg and Newark Basins, a large alluvial fan south 

of Reading deposited coarse quartzite-limestone gravel and arkosic 

sands whose source was derived from the north. Lateral deposition 

along the basin area away from this fan developed the finer 

Lockatong, Brunswick, and Gettysburg Formations. 

KEYWORDS: general geology sedimentation 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

MAPS: Geol: sketches 

Section: columnar sections 
Page 288 

875 p MCLAUGHLIN, DEAN B., 1941, The distribution of minor faults in the 

Triassic of Pennsylvania: Michigan Academy of Science, Papers, v. 27, 

p. 465-479. 

SUMMARY: Minor faults cluster along major fault and fracture zones that cross 

the basin or that form the northern border. The 'Delaware River 

section reveals few dislocations, so that the effect of faults upon 

the previously calculated thicknesses is negligible. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geol: sketches 

876 P : MCLAUGHLIN, DEAN B., 1943, The Revere well and Triassic stratigraphy: 

Pennsylvania Academy of Science, Proceedings, v. 17, p. 104-110. 

SUMMARY: The well (2084 feet in the Brunswick Fm.) along Rapp Creek at 

Revere, Pa., and studies of the outcrop patterns in the area reveal 

that the Brunswick Formation, which is interbedded with Lockatong 

gray beds, is not disturbed by faulting and that the well log and 

the outcrop sections of the Delaware River and the area around 

Revere correlate well. A regional stratigraphic column is 

developed. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co., Riegelsville Quad. 

MAPS: Geol: sketch 

Section: stratigraphic (from Stockton, N.J. to Haycock Mtn., Pa.) 

877 P MCLAUGHLIN, DEAN B., 1944, Triassic stratigraphy in the Point Pleasant 

District, Pennsylvania: Pennsylvania Academy of Science, Proceedings, v. 18, p. 62-69. 

SUMMARY: The geology of the Lockatong, Brunswick, and Stockton Formations is 

discussed in detail. Formations are divided into individual shale 

units based primarily on color. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co., Lumberville Quad. 

MAPS: Geol: sketches 
Page 289 

878 p MCLAUGHLIN, DEAN B., 1945, Type sections of the Stockton and Lockatong 

Formations: Pennsylvania Academy of Science, Proceedings, v. 19, p. 

102-113. 

SUMMARY: Exposures along the Delaware River reveal the sections of the two 

formations. The lower Stockton consists of gray arkose and conglomerate, red sandstone, and lesser amounts of shale. The upper 

Lockatong consists of red, gray, and black argillites and limestone. 

No faults in the formations are present north of Lumberville. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania, Bucks Co., Hunterdon 

Co. 

MAPS: Geol: sketch (Delaware River area) 

Section: type section 

879 P MCLAUGHLIN, DEAN B., 1946, Continuity of strata in the Newark Series: 

Michigan Academy of Science, Papers, v. 32, p. 295-303. 

SUMMARY: Extensive continuity of the dark shale members of the Lockatong and 

Brunswick Fms. and the lesser lateral continuity of Stockton and red 

Brunswick beds indicates that deposition of the former was characterized by regional lacustrine quiessence, while the latter was 

characterized by more turbulant deposition. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 

MAPS: Section: columnar sections 

880 p MCLAUGHLIN, DEAN B., 1946, The Triassic rocks of the Hunterdon 

Plateau, New Jersey: Pennsylvania Academy of Science, Proceedings, v. 

20, p. 89-98. 

SUMMARY: A detailed discussion of the geology of this synformally warped 

area of western Hunterdon County is presented. The Brunswick and 

Lockatong Formations occur. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hunterdon Co. 

MAPS: Geol: sketches 
881 p 

Page 290 

MCLAUGHLIN, DEAN B., 1950, A suggested correlation of Triassic areas 

of the Eastern United States: Pennsylvania Academy of Science, 

Proceedings, v. 24, p. 161-169. 

SUMMARY: Consideration of the similar geologic history of sedimentation in 

the Newark Basins results in correlation among the basins. Several 

correlation tables are presented. Equivalence is drawn between the 

three lava flows of N.J. and Conn., Richmond coal and Stockton 

Formation, and New Oxford Formation and Manassas Formation, to name 

a few. Evidence is based partly on paleontology. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Regional 

882 A MCLAUGHLIN, DEAN B., 1953, Triassic Basin in Pennsylvania and New 

Jersey: Geological Society of America, Bulletin, v. 64, p. 1452-1453. 

SUMMARY: The pre-Triassic basin floor had relief of several thousand feet. 

Faults with most movement occurring before the end of deposition 

form only parts of the NW border, and sediments accumulated against 

the escarpment. Elsewhere sediments overlapped on the pre- Triassic. The pre-Triassic floor developed by erosion of weaker 

Paleozoic shales and carbonates (see R.T. Faill). 

KEYWORDS: structure 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 

883 A : MCLAUGHLIN, DEAN B., 1957, Triassic alluvial fans in Pennsylvania: 

Geological Society of America, Bulletin, v. 68, p. 1765-1766. 

SUMMARY: Between the Brunswick and Gettysburg shale units, coarse conglomerates and sandstones occur southeast of Reading and along Furnace 

Ridge south of Lebanon. These units are 5000 and 2300 feet thick 

respectively, and occur in the Upper and Lower Gettysburg Fm. within 

the narrow area of the Pennsylvania Triassic. These units were 

derived from the north and define local provenance reflecting erosion of adjacent Paleozoic rocks. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 
Page 291 

884 P : MCLAUGHLIN, DEAN B., 1958, Triassic north border near South Mountain: 

Pennsylvania Academy of Science, Proceedings, v. 32, p. 151-155. 

SUMMARY: A northern border fault at the base of the Precambrian South 

Mountain is suggested by the distribution and composition of 

conglomerate and the occurrence of slickensided and silicified 

Triassic rocks. Faulting extends from Kleinfeltersville, where the 

Martinsburg Formation is adjacent to the Triassic, to Frit~town, 

where Hardystown quartzite is adjacent. East of Fritztown, diabase 

may occupy a possible border fault. Elsewhere, evidence for 

faulting is lacking. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lancaster Co., Berks Co., 

Lebanon Co. 

MAPS: Geol: sketch 

885 F MCLAUGHLIN, DEAN B., 1960, Notes on the New Oxford Formation and the 

limestone conglomerate at Conoy Creek: 25th Annual Field Conference 

of Pennsylvania Geologists, Guidebook, p. 84-88. 

SUMMARY: The New Oxford Formation consists chiefly of arkoses best seen in 

Lancaster County. Near Bainbridge (Lancaster Co.) and Mount Wolf 

(York Co.) several of the larger exposures of limestone conglomerates occur. These conglomerates often exhibit crude sorting and 

stratification and are associated with arkose and quartz conglomerate. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Lancaster Co., 

York Haven Quad. 

MAPS: Geol: sketch 
886 p 

Page 292 

MCLAUGHLIN, DEAN B., 1961, Some features of the Triassic north border 

in Pennsylvania: Pennsylvania Academy of Science, Proceedings, v. 35, 

p. 124-128. 

SUMMARY: This report describes exposures at the Greshville Quarry (Berks 

County), the Big Dam Quarry southeast of Reading, the Harrisburg 

West Shore interchange of the Pa. Turnpike in eastern Cumberland 

County, and the York Springs Quarry in NE Adams County. All show no 

evidence of border faulting at the contact between the Triassic and 

the Paleozoic. 11 New11 areas of limestone conglomerate are described 

from Yellow Breeches Creek area, York County. 

KEYWORDS: structure 

faults 

general geology 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

887 p MCLAUGHLIN, DEAN B., 1963, Newly recognized folding in the Triassic of 

Pennsylvania: Pennsylvania Academy of Science, Proceedings, v. 37, p. 

156-159. 

SUMMARY: A syncline and corresponding anticline transected by a branching 

fault occur near Vinemont and within conglomerates and sandstones of 

the Gettysburg Formation. Folding may have been caused by diabase 

intrusion or regional tilting against the northern border fault. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks Co., Sinking Spring Quad. 

MAPS: Geol: local geology and structure 
888 p 

Page 293 

MCLAUGHLIN, DEAN B., AND GERHARD, ROBERT C., 1953, Stratigraphy and 

origin of Triassic fluviatile sediments, Lebanon and Lancaster 

Counties: Pennsylvania Academy of Science, Proceedings, v. 27, p. 

136-142. 

SUMMARY: The narrow region between the Newark and Gettysburg basins is 

characterized by steep dips (50°) to the north, and is composed of 

the lower New Oxford subarkoses and the upper Gettysburg sandstones. 

Studies of sedimentary structures and mineralogy indicate the former 

was derived from southern igneous and metamorphic (feldspathic) 

rocks, while the latter was derived from northern sedimentary rocks. 

KEYWORDS: sedimentation 

stratigraphy 

general geology 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennnsylvania, Lebanon Co., 

Lancaster Co. 

MAPS: Geol: sketch 

Section: stratigraphic (Hammer Creek section) 

889 P MCLAUGHLIN, DEAN B., AND WILLARD, BRADFORD, 1949, Triassic facies in 

the Delaware Valley: Pennsylvania Academy of Science, Proceedings, v. 

23, p. 34-44. 

SUMMARY: Studies of the Stockton, Lockatong, and Brunswick Formations indicate that the three do not represent distinct formations deposited 

successively, but are in part contemporaneous. 

KEYWORDS: sedimentation 

stratigraphy 

general geology 

GEOGRAPHIC AREA: Newark Basin 

MAPS: Geol: sketch of Hunterdon area, N.J. 
Page 294 

890 P : MEDICI, JOHN C., 1972, Minerals of the Fairfax Quarry, Centerville, 

Virginia: Mineralogical Record, v. 3, p. 173-179. 

SUMMARY: A description is given of a prehnite tube or tunnel associated with 

a fault in the diabase. Prehnite, apophyllite, as well as rare 

copper-bismuth sulfides, native silver, and other zeolites were 

found in this occurrence. 

KEYWORDS: diabase 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax Co., Manassas Quad. 

DATA: Photos: mineral specimens 

891 M MEUSCHKE, J.L., AND ZANDLE, G.L., 1963, Aeromagnetic map of the 

Greenfield Quadrangle, Franklin County, Massachusetts: u.s. Geological Survey, Map GP-432. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

892 M MEUSCHKE, J.L., AND ZANDLE, G.L., 1963, Aeromagnetic map of the 

Shelburne Falls Quadrangle, Franklin County, Massachusetts: U.S. 

Geological Survey, Map GP-438. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 
893 p 

Page 295 

MEYER, GERALD, 1958, The water resources of Carroll and Frederick 

Counties: Maryland Department of Geology, Mines, and Water Resources, 

Bulletin 22, 355 p. 

SUMMARY: The water-bearing properties of the lower-eastern, arkosic New 

Oxford Formation and the upper-western Gettysburg shale are 

outlined. Data from 169 wells are presented and indicate that 

average yield is 11 gallons per minute and increases with depth. 

The New Oxford water is softer (58 ppm) than the Gettysburg (230 

ppm). Both waters are of the calcium magnesium bicarbonate type. 

KEYWORDS: hydrology 

general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland, Frederick Co., Carroll Co. 

MAPS: Geol: sketch (no topography) 

Mise: well locations [1:62,500] 

DATA: Chern. (type of data): water 

894 T MEYERTONS, C.T., 1959, The geology of the Danville Triassic Basin of 

Virginia: Ph.D. Thesis, Virginia Polytechnic Institute, 188 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Danville Basin, Virginia 
Page 296 

895 PM: MEYERTONS, CARL THEILE, 1963, Triassic formations of the Danville 

Basin: Virginia Division of Mineral Resources, Report of Investiga- tions 6, 65 p. 

SUMMARY: The basin's stratigraphy and general geology are described. A lower 

Leakesville Formation consists of intertongueing black to gray shales (Cow Branch mb.) and red shales and conglomerates (Cascade 

Station mb.). A middle Dry Fork Formation consists of arkoses and 

graywackes; and the uppermost Cedar Forest Formation of red shale 

and conglomerate. The normal Chatham fault borders the basin to the 

west with beds dipping west. 

KEYWORDS: general geology 

stratigraphy 

structure 

faults 

sedimentation 

GEOGRAPHIC AREA: Danville Basin, Virginia 

MAPS: Geol: [1:62,500] 

Section: formation type sections 

DATA: Photos: photomicrographs, outcrops 

Plots: sediment mineralogy 

896 PM: MIKAMI, H.M., AND DIGMAN, R.E., 1957, Bedrock geology of the Guilford 

15-minute Quadrangle and a portion of the New Haven Quadrangle: 

Connecticut Geological and Natural History Survey, Bulletin 86, 99 p. 

SUMMARY: This area covers the SE corner of the basin and contains the Meriden 

Formation (red shales and limestone) and the Portland Arkose. 

Fanglomerates occur adjacent to the border fault. Exposures of the 

Holyoke and Hampden Basalts as well as the Talcott Basaltic tuff are 

present in the area. The structure of the area is outlined, and 

dips increase toward the border fault. Basalts are considered to 

have overlapped onto pre-Triassic rocks. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven Co., Middlesex Co., 

Branford Quad., Guilford Quad., Durham Quad. 

MAPS: Geol: [1:63,360] 

Section: structure sections 

Mise: [1:126,720] structure; cobble size in fanglomerate; joints 
Page 297 

897 p MILLER, B.L., 1924, Lead and zinc ores of Pennsylvania: Pennsylvania 

Geological Survey, Fourth Series, Bulletin M5, 91 p. 

SUMMARY: The lead-zinc veins along the southern edge of the basin in Chester 

and Bucks Counties are described. The veins consist of argentiferous galena, sphalerite and secondary lead-zinc minerals within a 

gangue of quartz, carbonate, and barite. The veins are considered 

Triassic or post-Triassic in age, as they transect Triassic and 

Paleozoic rocks. 

KEYWORDS: economic geology 

lead 

zinc 

silver 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

898 PM: MILLER, BENJAMIN LEROY, 1939, Northampton County, Pennsylvania: 

Pennsylvania Geological Survey, Fourth Series, Bulletin C 48, 496 p. 

SUMMARY: The Brunswick Formation occurs along the northern edge of the basin 

in the extreme southern area of the county and consists of a coarse, 

quartzite and limestone conglomerate that is considered to rest 

unconformably on Paleozoic rocks to the north. Malachite staining 

of the conglomerate occurs at two localities that are not immediately adjacent to diabase. 

KEYWORDS: general geology 

economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Northampton County, Hellertown 

Quad. 

MAPS: Geol: [1:62,500] 

899 PM: MILLER, BENJAMIN LEROY, 1941, Lehigh County, Pennsylvania: 

Pennsylvania Geological Survey, 4th Series, Bulletin C39, 492 p. 

SUMMARY: The Brunswick Formation of the Newark group forms the north edge of 

the Newark Basin in southernmost Lehigh County. Conglomerates, 

composed of limestone and sandstone fragments in red clay matrix, 

dominate with only local shale present at Coopersburg. There is no 

evidence for border faulting. Several diabase dikes occur and, 

enigmatically, do not alter the adjacent calcareous conglomerate. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lehigh Co. 

MAPS: Geol: [1:62,500] 
Page 298 

900 p MILLER, W.J., 1921, The geological history of the Connecticut Valley 

of Massachusetts; a popular account of its rocks and origin: 

Northampton, Massachusetts, The Hampshire Bookshop, 74 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

901 P : MILTON, CHARLES, 1947, Diabase dikes of the Franklin Furnace, New 

Jersey, Quadrangle: Journal of Geology, v. 55, p. 522-526. 

SUMMARY: Four dikes intruding Paleozoic gneiss are shown by petrography and 

chemistry to be diabase dikes, unlike the other dike rocks of the 

quadrangle. They are considered Triassic in age. Three of the 

dikes are quartz-normative, and one is olivine-normative. Field 

relations are discussed. 

KEYWORDS: general geology 

diabase 

GEOGRAPHIC AREA: New Jersey, Sussex County 

MAPS: Geol: sketch 

DATA: Chern. (type of data): major oxides 

902 p MILTON; CHARLES, AND HURST, VERNON J., 1965, Subsurface basement rocks 

of Georgia: Georgia Geological Survey, Bulletin 76, 56 p. 

SUMMARY: A review is presented of the known wells that have penetrated 

basement rocks beneath the Coastal Plain. Many of these are 

apparently intersecting Triassic rocks. (This is primarily a review 

of previous literature, and presents no new well data.) 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Georgia 
Page 299 

903 F MILTON, DANIEL J., 1980, A cataclastic zone associated with the Davie 

County Triassic Basin: in, Price, V., Jr., and others, eds., 

Carolina Geological Society Field Trip Guidebook, 1980, Trip IX, 10 p. 

SUMMARY: The petrographic characteristics of the cataclastic zone, which 

occurs NE and SW of the basin and marks the boundary between the 

Charlotte and Inner Piedmont Belts as well as the Charlotte and 

Sauratown Mtns. anticlinorium, are outlined. This greenschist· 

facies mylonitic zone passes generally beneath the basin and 

contrasts with the higher regional metamorphic grade of the 

pre-Triassic rocks. Gold deposits may occur along this zone of 

cataclasis. 

KEYWORDS: structure 

faults 

economic geology 

gold 

GEOGRAPHIC AREA: Davie County Basin, Dan River Basin, North Carolina 

MAPS: Geol: sketch 

DATA: Photos: photomicrographs 

904 A MOLNAR, PETER H., AND PAGE, ROBERT A., 1968, Seismicity in the 

vicinity of the Ramapo Fault, New Jersey-New York: Earthquake Notes, 

v. 39, p. 8. 

SUMMARY: Since 1962, 4 small earthquakes have occurred along this border 

fault of the Newark Basin near the New York-New Jersey border. The 

seismograph recording was conducted by the Lamont Geological 

Observatory. 

KEYWORDS: geophysics 

seismic profiles 

structure 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 
Page 300 

905 p MOODY, C.L., 1949, Mesozoic igneous rocks of Northern Gulf Coastal 

Plain: American Association of Petroleum Geologists, v. 33, p. 

1410-1428. 

SUMMARY: Studies of igneous rocks from wells in Louisiana, Arkansas, and 

Mississippi reveal a variety of magma types characterized by both 

basaltic (Triassic) and alkalic and basaltic (Cretaceous) episodes. 

Descriptions of the rock types and well locations are given. 

KEYWORDS: buried basins 

basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Mississippi embayment 

MAPS: Mise: well locations w/rock type 

DATA: Chern. (type of data): major oxide 

906 T MOONEY, JOHN, 1980, The or1g1n and diagenetic history of a Mesozoic 

carbonate hot spring deposit, Coe's Quarry, North Branford, Connecticut: M.S. Thesis, University of Connecticut. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven Co. 

907 A MOONEY, JOHN, STEINEN, RANDOLPH, AND GRAY, NORMAN, 1984, A Mesozoic 

carbonate hot spring deposit, Coe's Quarry, North Branford, Connecticut: Geological Society of America, Abstracts with Programs, v. 16, 

no. 1, p. 52. 

SUMMARY: A Mesozoic carbonate deposit in the Hartford Basin, Connecticut, 

containing tufa, travertine, and chalcedony, is interpreted as a hot 

spring deposit. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
908 p 

Page 301 

MORGAN, FRENCH, 1951, Minerals of the Arlington trap rock quarry in 

Goose Creek, Loudoun County, Virginia: Rocks and Minerals, v. 26, p. 

339-343. 

SUMMARY: A list and brief descriptions of the minerals are given. They occur 

primarily in joints within the diabase. Minerals include: 

apophyllite, babingtonite, byssolite, chabazite, prehnite, and 

laumontite. 

KEYWORDS: diabase 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co., Leesburg Quad. 

MAPS: Mise: sketch of quarry location 

909 p MORGAN, PAUL, AND BAKER, BRIAN H., ED., 1983, Processes of continental 

rifting: Tectonophysics, v. 94, no. 1-4, 680 p. 

SUMMARY: This special issue presents articles concerning the mechanics, 

geophysical and geochemical constraints, mineral resources, and 

tectonic evolution of ancient and modern continental rift systems. 

KEYWORDS: tectonics 

geophysics 

GEOGRAPHIC AREA: Regional 

910 A : MORNINGSTAR, HELEN, 1916, The origin of the Newark Series in the 

Philadelphia District: Science, v. 43, p. 395-396. 

SUMMARY: A railroad exposure at Bridgeport reveals the Stockton Formation. 

It consists of lens-shaped masses of conglomerate within beds of red 

and gray sandstone. A thin (few inches) carbonaceous black shale 

occurs. Decomposed feldspar is abundant. A semi-arid, terrestrial, 

fluviatile origin is attributed to these sediments and is considered 

similar to current sedimentation in the Valley of California. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery Co., Norristown Quad. 
Page 302 

911 p MUNDORFF, M.J., 1948, Geology and ground water in the Greensboro area, 

North Carolina: North Carolina Department of Conservation and Development, Bulletin 55, 108 p. 

SUMMARY: The general geology (stratigraphy and structure) of the Dan River 

Basin is outlined, and hydrologic properties and well information 

are provided. Water is moderately hard, but the Triassic rocks are 11 0ne of the better acquifers 11 in the Greensboro area. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Dan River Basin, North Carolina 

MAPS: Mise: well locations 

912 P : MURRAY, GROVER, 1937, Durham Triassic Basin: Compass, v. 17, p. 214-

223. 

SUMMARY: The general geology of the basin is outlined. Arkosic sandstone, 

conglomerate, and red to gray sandstone and shale dominate. 

Conglomerates occur near the basin edges, deposits become more 

calcareous with depth, and carbonaceous shales occur and contain 

fossils (listed). The southeast border is represented by a series 

of step-faults. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

DATA: Photos: outcrops 

913 M 

N 

NELSON, A.E., AND FORCE, L.M., 1976, Preliminary geologic map of the 

Coastal Plain and the Triassic lowland of Fairfax County, Virginia: 

U.S. Geological Survey Open-File Report 76-312. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: [1:48,000] 
Page 303 

914 A : NELSON, BRUCE W., 1956, Mineralogy of sediments from the Virginia 

Triassic: Virginia Journal of Science, v. 7, p. 325. 

SUMMARY: The sediments of the Culpeper Basin are considered arkosic with 

calcite cement and a hematitic clay fraction. No kaolinite is 

found, but illite and chlorite occur with quartz, feldspar, and mica 

as major constituents. 

KEYWORDS: sediments 

mi ner·a 1 ogy 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

915 P : NELSON, ROBERT H., 1964, Coal in basalt at Rocky Hill, Connecticut: 

Rocks and Minerals, v. 39, p. 461. 

SUMMARY: At the! Wethersfield-Rocky Hill exit of Route 9, coal occurs in a 

limestone block within a basalt flow. Calcite and pyrite also occur 

as veins in the limestone. The coal is thought to have formed 

th rou~Jh therma 1 metamorphism of a swamp by the engulfing 1 ava. 

KEYWORDS: general geology 

basalt 

economic geology 

coal 

GEOGRAPHIC AREA:: Hartford Basin, Connecticut, Hartford Co., Hartford South 

Quad. 

916 P : NELSON, ROBERT H., 1965, New locality for dinosaur tracks in 

Connecticut: Rocks and Minerals, v. 40, p. 5-7. 

SUMMARY: Dinosaur species are recognized from footprints in a micaceous red 

sands:one interbeded with shale southeast of a NE-trending fault at 

the intersection of Routes 3 and 160 at Rocky Hill. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connefticut, Hartford Co., Hartford South 

Quad. 

DATA: Photos: outcrops 
Page 304 

917 PM: NELSON, WILBUR A., 1962, Geology and mineral resources of Albemarle 

County: Virginia Division of Mineral Resources, Bulletin 77, 92 p. 

SUMMARY: The northern area of the Scottsville Basin and the southern tip of 

the Barboursville Basin are mapped. The Scottsville Basin is bordered by normal faults to the east, west, and northwest. Sediments 

consist of (from lowest): poorly sorted red sandstone (eastern), a 

boulder fanglomerate composed of Catoctin Formation fragments 

(western), and a western red, gray, and green siltstone. Diabase 

dikes are present throughout the county. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Scottsville Basin, Barboursville Basin, Virginia, Albemarle 

County 

MAPS: Geol: [1:62,500] 

918 p NEUMANN, G.L., 1947, Investigation of the Dillsburg magnetite 

deposits, York County, Pennsylvania: U.S. Bureau of Mines, Report of 

Investigations 4145, 7 p. 

SUMMARY: Magnetite deposits occur in limestone conglomerate between two 

diabase sheets. Pyrite and chalcopyrite as well as cobalt are 

present in the ore. Mine descriptions are given. A magnetic survey 

of the area is conducted. Iron content in cores is presented. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Dillsburg Quad. 

DATA: Chern. (type of data): ore 

919 M NEUSCHEL, S.K., 1965, Natural gamma aeroradioactivity of the District 

of Columbia and parts of Maryland, Virginia, and West Virginia: U.S. 

Geological Survey, Geophysical Investigations Map GP-475. 

KEYWORDS: geophysics 

aeroradioactivity 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Maryland 

MAPS: Geophys: aeroradioactivity [1:125,000] 
Page 305 

920 p NEWBURRY~ JOHNs., 1888, Fossil fishes and fossil plants of the 

Triassic rocks of New Jersey and the Connecticut Valley: U.S. 

Geological Survey Memoir 14, 152 p. 

SUMMARY: Photoqraphs accompany detailed descriptions of the fossil fish and 

plant species. A brief introductory discussion considers the histol~ical development of ideas concerning the correlation and age 

of the Triassic rocks. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Newark Basin, New Jersey 

921 P : NEWELL, F.H., 1889, Richmond coal field, Virginia: Geological 

Magazine, Decade Ill, v. 6, p. 138-140. 

SUMMARY: It is suggested that, unlike other opinions, the coal beds of the 

basin were deposited uniformly and horizontally and were later 

tilted and folded. Deposition did not take place in a previously 

developed basin with irregularity of depth. 

KEYWORDS: general geology 

economic geology 

coal 

GEOGRAPHIC AREA: Richmond Basin, Virginia 

922 p NEWHOUSE, W.H., 1933, Mineral zoning in the New Jersey-PennsylvaniaNew Jersey Triassic area: Economic Geology, v. 28, p. 613-633. 

SUMMARY: The rragnetite-copper sulfide Cornwall-type deposits of Pennsylvania 

are considered to be related to hydrothermal solutions associated 

with diabase along faults. The presence of limestone is not considered an important factor. Copper-rich deposits in N.J. and Va. 

formed at lower temperature, and had a primary, deep hydrothermal 

source that was of lower temperature, perhaps due to the Triassic 

erosional surface. 

KEYWORDS: economic geology 

iron 

copper 

GEOGRAPHIC AREt\: Newark Basin, Gettysburg Basin, Culpeper Basin, New Jersey, 

Pennsylvania, Virginia 
Page 306 

923 p NICHOLS, WILLIAM D., 1968, Ground-water resources of Essex County, New 

Jersey: New Jersey Division of Water Policy and Supply, Special 

Report 28, 56 p. 

SUMMARY: A description of the water-bearing properties of the Brunswick Fm. 

and the Watchung basalt is given. Wells in the former average 364 

gpm yield, while the latter averages 116 gpm. The most productive 

zones in the Brunswick shale are between depths of 300 and 400 feet. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Essex Co. 

MAPS: Geol: bedrock topography and geology 

Mise: piezometric contours; well locations 

DATA: Chern. (type of data): water (incl. pH) 

Plots: specific capacity 

924 P : NUTTER, L.J., 1975, Hydrogeology of the Triassic rocks of Maryland: 

Maryland Geological Survey, Report of Investigations No. 26, 20 p. 

SUMMARY: Water chemistry and supply from numerous wells in the Triassic are 

presented. Limestone conglomerate yields the greatest supply of 

water. The geology and distribution of the New Oxford and 

Gettysburg Formations are outlined. Water is generally of good 

quality; however, iron, manganese, and especially nitrate are highly 

concentrated. 

KEYWORDS: hydrology 

general geology 

GEOGRAPHIC AREA: Culpeper Basin, Gettysburg Basin, Maryland 

MAPS: Geol: sketch 

Mise: well locations 

DATA: Chern. (type of data): water 
925 p 

Page 307 

0 

OLDALE, ROBERT N., 1962, Sedimentary rocks of Triassic age in 

Northeastern Massachusetts: u.s. Geological Survey Professional Paper 

450-C, p. C31-C32. 

SUMMARY: Unmeta~orphosed red arkose, conglomerate, and shale are found in the 

northwest area of the Salem Quadrangle and within the glacial till 

cover. Directions of glacial movement indicate that the fragments 

were derived from a nearby source just to the NW of the area. 

Petrographically, the rocks more closely resemble those of the 

Connecticut Valley. 

KEYWORDS: general geology 

buried basins 

GEOGRAPHIC AREA: Massachusetts 

MAPS: Mise: sample locations 

926 T OLSEN, P.E., 1984, Comparative paleolimnology of the Newark Supergroup: a study of ecosystem evolution: Ph.D. Thesis, Yale University, 726 p. 

KEYWORDS: sedimentation 

paleontology 

stratigraphy 

climate 

GEOGRAPHIC AREA: Regional 

927 p OLSEN, P.E., 1984, Periodicity of lake-level cycles in the Late 

Triassic Lockatong Formation of the Newark Basin (Newark Supergroup, 

New Jersey and Pennsylvania): in, Berger, A., Imbrie, J., Hays, J., 

Kukla, G., and Saltzman, B., ed~, Milankovitch and climate, NATO 

Symposium: Dordrecht, D. Reidel Publishing Co., Part 1, p. 129-146. 

KEYWORDS: sedimentation 

climate 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Newark Basin, Pennsylvania 
928 p 

Page 308 

OLSEN, PAUL E., 1980, A comparison of the vertebrate assemblages from 

the Newark and Hartford Basins (Early Mesozoic, Newark Supergroup) of 

eastern North America: in, Jacobs, L.L., ed., Aspects of Vertebrate 

History, Museum of Northern Arizona Press, Flagstaff, p. 35-53. 

SUMMARY: Study of the vertebrate assemblages from the Stockton, Lockatong, 

and Passaic Fms. (Newark), the New Haven Arkose (Conn.), and the 

Early Jurassic Fms. indicates a general correlation between the 

major homotaxial lithologic divisions in the two basins. Details 

include: correlation of the New Haven and Passaic Fms., roughly 

contemporaneous basalt extrusion, and absence of Stockton and 

Lockatong time equivalents in the Hartford Basin. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Newark Basin, New Jersey, 

Pennsylvania 

MAPS: Section: stratigraphic columns 

DATA: Photos: fossil sketches 

929 F OLSEN, PAUL E., 1980, Fossil Great Lakes of the Newark Supergroup in 

New Jersey: in, Manspeizer, W., ed., Field Studies of New Jersey 

Geology and GUTde to Field Trips, New York State Geological Association, 52nd Annual Meeting, p. 352-398. 

SUMMARY: The lacustrine cycles of the Lockatong, Feltville, and Towaco 

Formations are described. Fossil invertebrates are outlined and 

used as depositional indicators. Other topics include: lacustrine 

turbidites, fluvial and flood plain facies, climatic change, and 

comparative paleolimnology. Field stops are in the NE area of the 

basin in the vicinity of Rutgers, N.J. 

KEYWORDS: paleontology 

sedimentation 

stratigraphy 

general geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Section: stratigraphic; cross sections 

DATA: Photos: sedimentary cycles 
Page 309 

930 F OLSEN, PAUL E., 1980, Triassic and Jurassic formations of the Newark 

Basin: in, Manspeizer, W., ed., Field Studies of New Jersey Geology 

and Guide-to Field Trips, New York State Geological Association, 52nd 

Annual Meeting, p. 2-39. 

SUMMARY: A review is given of the Stockton, Lockatong, Passaic, Feltville, 

Towaco, and Boonton Formations. Type sections and fossil species 

are outlined. The former three formations are considered Middle and 

Late Carnian-Rhaetic, and the latter, Hettangian and Sinemurian. 

Field stops are along Route 80. 

KEYWORDS: general geology 

stratigraphy 

paleontology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Section: stratigraphic 

931 p OLSEN, PAUL E., 1981, Comment and reply on 11 Eolian Dune Field of Late 

Triassic Age, Fundy Basin, Nova Scotia 11 : Geology, v. 9, p. 557-559. 

SUMMARY: A reinterpretation of the dunal stratigraphy in the NE Fundy Basin 

reveals that the Red Head and Clark Head sections are of different 

ages, the former Late Triassic, the latter Early Jurassic. This 

suggests that a trend in aridity from S to N existed not only in the 

Late Triassic, but in the Early Jurassic as well. (Based on the 

work of Hubert and Mertz, 1980.) 

KEYWORDS: sedimentation 

GEOGRAPHIC AREt~: Maritime, Nova Scotia 

MAPS: Section: stratigraphic 

932 A OLSEN, PAUL E., 1982, Lockatong Fm. detrital cycles (Late Triassic, 

Newark Basin, N.J. and Pa.), Great Lakes, and ecosystem efficiency: Geolo~Jical Society of America, Abstracts with Programs, v. 14, p. 70. 

SUMMARY: Black, microlaminated, deepest-lake siltstones have to~al organic 

carbonic (TOC) contents of (1.5-7.0%), while shallower red siltstones have TOC values of 0-1.5%. This difference is attributed to 

ecosystem efficiency, being lowest in the black, non-bioturbated, 

high-TOC facies. 

KEYWORDS: paleontology 

sedimentation 

GEOGRAPHI~ AREA: Newark Basin, New Jersey, Pennsylvania 
933 A 

Page 310 

OLSEN, PAUL E., 1983, On the non-correlation of the Newark Supergroup 

by fossil fishes: biogeographic, structural and sedimentological 

implications: Geological Society of America, Abstracts with Programs, 

v. 15, p. 121. 

SUMMARY: Discovery of the Semionotus tenuiceps group and the s. elegans group 

in the Culpeper Basin Waterfall Fm. suggests: a one-to-one correlation of the Jurassic Hartford and Newark Basin Fms., regional geographic barriers, and non-connection of the Newark and Hartford 

Basins. The similarity of the Feltville Fm. (Newark)-Shuttle Meadow 

Fm. (Hartford), and Towaco Fm. (Newark)-East Berlin Fm. (Hartford) 

is attributed to similar (regional) climatic and tectonic factors. 

KEYWORDS: paleontology 

stratigraphy 

sedimentation 

general geology 

GEOGRAPHIC AREA: Regional 

934 p OLSEN, PAUL E., REMINGTON, CHARLES L., CORNET, BRUCE, AND THOMSON, 

KEITH S., 1978, Cyclic change in Late Triassic lacustrine communities: Science, v. 201, p. 729-733. 

SUMMARY: Studies of the Dan River Group reveal the presence of abundant 

lacustrine aquatic reptiles, fishes, insects, crustaceans, and 

diverse flora. Cyclic changes in this flora and fauna correlate 

with sedimentary cycles affected by climatic fluctuation and 

tectonic activity, reflecting the development and extinction of 

meromictic lakes. 

KEYWORDS: sedimentation 

paleontology 

GEOGRAPHIC AREA: Danville Basin, Virginia, Dan River Basin, North Carolina 

935 p OLSEN, PAUL ERIC, 1978, On the use of the term Newark for Triassic and 

Early Jurassic rocks of Eastern North America: Newsletters on 

Stratigraphy, v. 7, no. 2, p. 90-95. 

SUMMARY: It is proposed that the rank of the term Newark be raised to supergroup to permit use of group names for individual basins and to conform better with the American Code of Stratigraphic Nomenclature 

(see Froelich and Olsen, 1984). 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Regional 
Page 311 

936 p OLSEN, P~UL ERIC, 1980, The latest Triassic and Early Jurassic formations of the Newark Basin (eastern North America, Newark Supergroup): stratigraphy, structure and correlation: New Jersey Academy 

of Science, Bulletin, v. 25, no. 2, p. 25-51. 

SUMMARY: The Newark Basin stratigraphy is revised into nine formations (from 

base): Stockton, Lockatong, Passaic, Orange Mountain (basalt), 

Feltville, Preakness (basalt), Towaco, Hook Mountain (basalt), 4nd 

Boonton. Lithologies, sedimentary cycles, and paleontology of these 

are discussed. Faulted and unconformable relationships occur along 

both basin margins, with greater fault movement on the NW border. 

Stockton, Lockatong, and lower Passaic Fms. are Late Triassic, while 

the upper Passaic Fm. is Early Jurassic. 

KEYWORDS: general geology 

stratigraphy 

structure 

paleontology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey, New York 

MAPS: Geol: sketches 

Section: type sections, stratigraphic 

937 A OLSEN, PAUL ERIC, 1983, Relationship between biostratigraphic 

subdivisions and igneous activity in the Newark Supergroup: 

Geolo£,ical Society of America, Abstracts with Programs, v. 15, p. 93. 

SUMMARY: Study of the footprint and fish fossil zones and the igneous rocks 

that cut them reveal that basalts are interbedded with Early 

Jurassic sediments; sills intrude only Late Triassic sediments; 

apparent feeders to basalts and diabase dikes cut all zones. 

Further conclusions are: no evidence for pre-Early Jurassic igneous 

activity; in some basins, sedimentation continued after cessation of 

igneous activity; and some dikes post-date the extrusives. 

KEYWORDS: pal E!Ontol ogy 

st rclt i g raphy 

gene!ral geology 

GEOGRAPHIC AREA: Regional 
938 A 

Page 312 

OLSEN, PAUL ERIC, AND BAIRD, D., 1982, Early Jurassic vertebrate 

assemblages from the McCoy Brook Fm. of the Fundy Group (Newark 

Supergroup, Nova Scotia, Canada): Geological Society of America, 

Abstracts with Programs, v. 14, p. 70. 

SUMMARY: Unlike previously recognized assemblages, vertebrates from the red 

eolian, fluvial, and lacustrine McCoy Brook Fm. are Early Jurassic 

in age and indicate that the Fm. is equivalent to the Scots Bay Fm. 

Further evidence: K/Ar ages of interfingering N. Mountain basalt, 

palynomorphs, footprints, and common reptile bones and hybodent 

teeth. 

KEYWORDS: paleontology 

stratigraphy 

GEOGRAPHIC AREA: Maritime 

939 p OLSEN, PAUL ERIC, MCCUNE, AMY REED, AND THOMSON, KEITH STEWART, 1982, 

Correlation of the Early Mesozoic Newark Supergroup by vertebrates, 

principally fishes: American Journal of Science, v. 282, p. 1-44. 

SUMMARY: Fossil fish, floral, and tetrapod evidence are used to develop five 

biostratigraphic zones that are related to Early Mesozoic sequences 

throughout the world. Basalt flows in the Newark rocks, while 

limited to the Hettangian and Sinemurian (Early Jurassic), cannot be 

correlated among the basins. 

KEYWORDS: paleontology 

stratigraphy 

general geology 

GEOGRAPHIC AREA: Regional 

940 p OPDYKE, N.D., 1961, The paleomagnetism of the New Jersey Triassic: a 

field study of the inclination error in red sediments: Journal of 

Geophysical Research, v. 66, no. 6, p. 1941-1949. 

SUMMARY: Samples of red beds and basalt show no significant error in 

inclination of the bed beds as compared to the igneous rocks. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Mise: sample locations 

DATA: Plots: pole positions 
Page 313 

941 T ORLOWSKI, WAYNE, 1979, Paleogeomorphology and sedimentary analysis of 

the Brunswick Formation, New York Thruway, Rockland County, New York: 

M.S. Thesis, Rutgers University, 81 p. 

KEYWORDS: sedi 11lentat ion 

GEOGRAPHIC AREA: Newark Basin, New York 

942 T : OSBORNE, 1966, Portland Formation exposed in Broad Brook, north of 

Hartford: M.S. Thesis, University of Connecticut. 

KEYWORDS: sediments 

stratigraphy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

943 F OSTRUM, JOHN H., AND QUARRIER, SIDNEY S., 1968, The Rocky Hill dinosaurs: in, Orville, P.M., ed., Guidebook for Field Trips in 

Connecticut, New England Intercollegiate Geological Conference, 60th 

Meetirg, Guidebook No. 2, Trip C-3, 12 p. 

SUMMARY: An exposure of a bedding surface within the East Berlin Fm. arkose 

at Dinosaur State Park displays a great density of reptile footprints. A review of the species present and the nature of dinosaur 

life is outlined. 

KEYWORDS: paleontology 

GEOGRAPHIC AREJ\: Hartford Basin, Connecticut, Hartford, Hartford South 

DATA: Photos: outcrops (tracks) 

944 P : OTIS, L~D., 1952, Minerals and rocks of Springfield and vicinity: 

Sprinqfield Museum of Natural History Bulletin, no. 9, 50 p. 

KEYWORDS: diabase 

basalt 

mi m~ral ogy zeal ites 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
945 M 

Page 314 

OWENS, J.P., AND MINARD, J.P., 1964, Pre-quaternary geology of the 

Trenton East Quadrangle, New Jersey-Pennsylvania: U.S. Geological 

Survey, Geologic Quadrangle Map GQ-341. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Mercer Co., Trenton East Quad. 

MAPS: Geol: [1:24,000] 

p 

946 p PAGE, ROBERT A., MOLNAR, PETER H., AND OLIVER, JACK, 1968, Seismicity 

in the vicinity of the Ramapo Fault, New Jersey-New York: Seismological Society of America, Bulletin, v. 58, p. 681-687. 

SUMMARY: Four small earthquakes have occurred along the fault since 1962, and 

previous accounts of earthquakes indicate the zone has not been 

highly active since the Triassic. Published earthquake data are 

presented. 

KEYWORDS: geophysics 

seismic profiles 

structure 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 

MAPS: Geophys: epicenters 

947 p PALACHE, C., AND FRAPRIE, F.R., 1902, 1. Babingtonite from 

Somerville, Mass. 2. Babingtonite from Athol, Mass.: American 

Academy of Arts and Sciences, Proceedings, v. 38, p. 383-393. 

SUMMARY: This is a brief description of the crystallography, chemistry and 

occurrence of babingtonite in association with prehnite in Mesozoic 

diabase at Somerville, Massachusetts. 

KEYWORDS: diabase 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Massachusetts 
Page 315 

948 P : PALACHE, CHARLES, 1936, Babingtonite and epidote from Westfield, 

Massachusetts: American Mineralogist, v. 21, p. 193, 652-655. 

KEYWORDS: diabase 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

949 P : PALACHE, CHARLES, AND GONYER, F.A., 1932, On babingtonite: American 

Mineralogist, v. 17, p. 295-303. 

KEYWORDS: diabase 

basalt 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

950 T PALMER, RICHARD B., 1949, Triassic tectonics in Maryland: Ph.D. 

Thesis, Johns Hopkins University, 50 p. 

KEYWORDS: tectonics 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland 

951 P : PAPENF~S, E. B., 1931, 11Red bed 11 copper deposits in Nova Scotia and New 

Brunswick: Economic Geology, v. 26, p. 314-330. 

SUMMARY: It is suggested that the copper sulfide deposits within Permian red bed~ in Cumberland County, Nova Scotia, owe their origin to copper 

emanated from the Triassic North Mountain basalt. Mineralization con~ists of pyrite and chalcocite nodules and replacements of 

carbonaceous and cementing material. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, New Brunswick, Canada 

DATA: Photos: ore photomicrographs 
952 A 

Page 316 

PAPEZIK, V.S., 1983, Early Mesozoic basalt from the western part of 

the Bay of Fundy, Nova Scotia: chemistry, stratigraphy and origin: 

Geological Society of America, Abstracts with Programs, v. 15, p. 92. 

SUMMARY: The SW part of the 190-200 m.y. old North Mountajn basalt consists 

of, from base, a massive diabase (190m); amygdaloidal, zeolite-rich 

basalt (50 m); and coarse diabase (160m). The diabase units contain mafic pegmatite, are unaltered, and consist of bronzite, Mgaugite, and zoned plagioclase (An 57-75). The rock is a low-Ti 

quartz-normative tholeiite with relatively high MgO (9%) and Cr (370 

ppm) indicating oceanic basalt affinity. Emplacement in the rift 

zone occurred with only minor crustal contamination. 

KEYWORDS: petrology 

diabase 

basalt 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

953 p PAPEZIK, V.S., AND BARR, S.M., 1981, The Shelburne dike, an Early 

Mesozoic diabase dike in Nova Scotia: mineralogy, chemistry, and 

regional significance: Canadian Journal of Earth Sciences, v. 18, no. 

8, p. 1341-1355. 

SUMMARY: The petrography and mineral and bulk chemistry of the 140-km diabase 

dike in SW Nova Scotia are presented and indicate that it is a 

quartz-normative tholeiite characterized by a more advanced 

differentiation than the Avalon Peninsula dike. 

KEYWORDS: geochemistry 

petrology 

mineralogy 

petrology 

diabase 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

MAPS: Mise: sample locations 

DATA: Chern. (type of data): major oxide, trace (bulk, pyroxene, plagioclase) 

Plots: pyroxene composition; Ti-Zr-Y 
954 p 

Page 317 

PAPEZIK~ V.S.~ AND HODYCH~ J.P.~ 1980~ Early Mesozoic diabase dikes of 

the twalon Peninsula~ Newfoundland: petrochemistry~ mineralogy and 

origin: Canadian Journal of Earth Sciences, v. 17, no. 10~ p. 1417-

1430 .. 

SUMMARY: The 110-km long diabase dike dated at 201 and 191 m.y. is a quartznormative, high-Ti dolerite equivalent to the York Haven type (Smith 

et al., 1975) with a high-MgO content. Petrography and chemistry 

are outlined. The regional synthesis of the Early Mesozoic diabase dikE~ swarms of the Appalachians is considered more complex than 

first postulated. 

KEYWORDS: geochemistry 

petrology 

mineralogy 

petrology 

diabase 

GEOGRAPHIC AREA: Maritime Province, Newfoundland, Canada 

DATA: Chern. (type of data): major oxide~ trace (bulk, pyroxene, olivine, 

palgioclase, talc, Fe-Ti oxides) 

955 p 

Plots: Ti-Zr-Y 

PAPEZIK~ V.S., HODYCH, J.P.~ AND GOODACRE, A.K., 1975~ The Avalon magnetic lineament -a possible continuation of the Triassic dike system 

of New Brunswick and Nova Scotia: Canadian Journal of Earth Sciences, 

v. 12, p. 332-335. 

SUMMARY: A magnetic lineament that cuts the Avalon Peninsula of Newfoundland 

is considered to represent the extension of the Early Mesozoic 

diabase dike system of the Appalachians, and, in particular, the 

Shelburne dike of Nova Scotia. 

KEYWORDS: geophysics 

aeromagnetism 

general geology 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, New Brunswick, Canada 

MAPS: Geophys: aeromagnetic 
Page 318 

956 p PARK, YONG AHN, 1967, Petrography and depositional environments of the 

Triassic border conglomerates in New Jersey: Geological Society of 

Korea, Journal, v. 3, p. 36-50. 

SUMMARY: Fanglomerates along the western margin of the Newark Basin are 

studied and shown to be derived from the Silurian Green Pond and 

Decker Formation, the Cambro-Ordovician Kittatinny Formation, and 

Precambrian crystalline rocks. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Mise: sample locations 

DATA: Plots: petrographic data (sphericity, grain size) 

957 A PARKER, JOHN M., 1966, Triassic reptilian fossil from Wake County, 

North Carolina: Elisha Mitchell Scientific Society, Journal, v. 82, 

p. 92. 

SUMMARY: A part of a pseudosuchian reptile was found in a quarry 2.5 miles 

south of Lowe•s Grove in the western part of the County. The 

specimen came from a red to green arkosic sandstone that is interbedded in red mudstone. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Durham Basin, North Carolina, Wake Co. 
Page 319 

958 PM: PARKER. JOHN M., III, 1977, Geology and mineral resources of Wake 

County: North Carolina Geological Survey, Bulletin 86, 122 p. 

SUMMARY: This eastern area of the basin is bounded by the Jonesboro fault 

(discussed in detail) and contains coarse fanglomerate against the 

fau·lt, mudstone and sandstone further west, and a limestone, chert, 

and mudstone unit. The field relations, structure, and petrography 

of these units are discussed. A depositional model is developed bast~d upon syndepositional faulting in which the western (Pekin), 

central (Cumnock}, and eastern (Sanford) facies are timestratigraphic equivalents filling a wedge-shaped half graben. 

KEYWORDS: general geology 

structure 

faults 

paleontology 

sedimentation 

GEOGRAPHIC AR~A: Deep River Basin, North Carolina, Wake Co. 

MAPS: Geol: [1:100,000] 

Mise: diabase dikes (trend and thickness); Coastal Plain cover; 

Jonesboro Fault 

959 PM: PARKER, P.E., 1968, Geologic investigation of the Lincoln and Bluemont 

Quadrangles, Virginia: Virginia Division of Mineral Resources, Report 

of Investigations 14, 23 p. 

SUMMARY: The western, faulted-bounded edge of the basin occurs in the SE 

corner of the Lincoln quadrangle and is adjacent to the Weverton 

quartzite. Sandstones and conglomerates occur but are not 

described. Diabase dikes cut pre-Triassic rocks to the west. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun County, Lincoln Quad. 

MAPS: Geol: [1:31,680] 
Page 320 

960 P : PARNELL, J., 1983, Skeletal halites from the Jurassic of Massachusetts 

and their significance: Sedimentology, v. 30, p. 711-715. 

SUMMARY: The presence of skeletal pseudomorphs after halite that occur within 

a black shale horizon of the Chicopee shale at the Holyoke Dam 

indicates that evaporation to dryness is not essential to the 

genesis of skeletal halite and that it may form in a subaqueous 

brine-saturated sediment. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

DATA: Photos: photomicrographs 

961 A PARROTT, WILLIAM T., 1949, An occurrence of natural asphalt in Prince 

William County, Virginia: Virginia Academy of Science, Proceedings 

for the Year 1948-1949, p. 134-135. 

SUMMARY: A small occurrence of natural asphalt in Triassic conglomerate is 

found in a quarry at Routes 55 and 600. The asphalt occurs in 

cracks in the conglomerate, and may have been remobilized from 

overlying shales during faulting. Post-Triassic faulting may have 

volatilized the oil, leaving the asphalt. 

KEYWORDS: economic geology 

oil 

GEOGRAPHIC AREA: Culpeper Basin, Virgina, Prince William Co. 

962 A : PARROTT, WILLIAM T., 1954, An occurrence of zeolites in Fairfax 

County, Virginia: Virginia Journal of Science, v. 5, p. 308. 

SUMMARY: A diabase quarry 1.5 miles south of Centreville revealed specimens 

of fibrous natrolite and crystalline thaumasite on massive prehnite. 

KEYWORDS: diabase 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax Co., Manassas Quad. 

963 T PATTERSON, O.F., 1969, The depositional environment and paleoecology 

of the Pekin Formation of the Sanford Triassic Basin, North Carolina: 

M.S. Thesis, North Carolina State University. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Sanford Basin, North Carolina 
Page 321 

964 p PEARCE~ T.H., 1970, Chemical variations in the Palisade Sill: Journal 

of Petrology, v. 11, p. 15-32. 

SUMMARY: Variation diagrams and major element chemistry suggest crystal 

fractionation of olivine and pyroxene from a single, parent magma. 

Two trends may be present, one for the olivine-diabase, the other 

for the quartz-diabase. Al203, K20, Ti02, and Na20 are shown to be 

relatively constant through the differentiation. 

KEYWORDS: geochemistry 

petrology 

mineraloyy 

diabase 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): major oxide 

Plots: MgO vs. Si02, FeO vs. Si02, CaO vs. Si02, Na20 vs. Si02, K20 

vs. Si02, Ti02 vs. Si02 

965 M PEARRE, NANCY C., 1956, Mineral deposits and occurrences in Massachusetts and Rhode Island, exclusive of clay, sand, gravel, and peat: 

U.S. Geological Survey, Mineral Investigations Resource Map MR-4. 

KEYWORDS: economic geology 

copper 

bal"'i te 

zinc 

lead 

GEOGRAPHIC AREA: Massachusetts 

MAPS: Mise: [1:500,000] 

966 P : PEGAU, A.A., 1937, Mineralogy of the Virginia diabase: American 

Mineralogist, v. 22, p. 872-874. 

SUMMARY: Di al)ase dikes intruding Triassic rocks contain the greatest number 

of minerals (38) attributed to proximity to the original source and 

hydrothermal action. Dikes intruding the Piedmont contain an intermediate number, while dikes in the Valley and Ridge Province contain 

the fewest minerals (18) attributed to fewer dikes in this group and 

greater distance from the "source." Minerals are listed. It is 

noted that, near the Roseland rutile area, diabase dikes there contain rutile, graphite, and pyrrhotite. 

KEYWORDS: diabase 

mineralogy 

GEOGRAPHIC AREA: Virginia 
Page 322 

967 A PEGRAM, W.J., 1982, Pb and Nd isotopic variations in the Mesozoic 

Appalachian tholeiite province: Geological Society of America, 

Abstracts with Programs, v. 14, no. 7, p. 585. 

SUMMARY: An isotopic model is developed which precludes a simple twocomponent mixing model relating all the tholeiites. Two sources 

are suggested. North Carolina olivine tholeiites reflect an old 

U/Pb enrichment followed by later U/Pb depletion (w.r.t. MORB). 

The rest of the early Mesozoic province was derived from a source 

which had a higher time-averaged U/Pb and Sm/Nd. 

KEYWORDS: diabase 

geochemistry 

isotopes 

GEOGRAPHIC AREA: Regional 

968 A PEGRAM, W.J., 1983, Isotopic characteristics of the Mesozoic 

Appalachian tholeiites: Geological Society of America, Abstracts with 

Programs, v. 15, no. 6, p. 660. 

SUMMARY: A reinterpretation of magma types is presented, and five types 

are recognized: (1) low-LIL olivine tholeiites, (2) high-LIL 

olivine tholeiites, (3) high-Ti quartz tholeiites, (4) low-Ti 

quartz tholeiites, and (5) alkalai olivine diabases. The latter 

are present in New England. Petrogenetic trends, geographic 

distribution, and ages of these groups are outlined. 

KEYWORDS: diabase 

geochemistry 

isotopes 

GEOGRAPHIC AREA: Regional 

969 M: PEPER, JOHN D., 1977, Bedrock geology of the Hampden Quadrangle: U.S. 

Geological Survey, Geologic Quadrangle Map GQ-1368. 

KEYWORDS: general geology 

economic geology 

copper 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts, Tolland Co. 

(Conn.), Hampden Co. (Mass.) 

MAPS: Geol: [1:24,000] 
Page 323 

970 P : PERCIVAL, J.G., 1822, Notice of the locality of sulphate of barytes: 

American Journal of Science, v. 5, p. 42-45. 

SUMMARY: A description is given of a two- to three-foot wide barite vein 

within basalt near its contact with red sandstone. Galena and 

sphalerite occur in veins just to the north of the barite. Veins 

containing quartz and coal fragments also occur. The locality is 

given as 11 half a mile west of Kensington meeting-house .. in·Berlin. 

(Refer to Hanshaw, P.M., 1968, U.S.G.S. Geologic Quadrangle Map 

738.) 

KEYWORDS: economic geology 

lead 

zinc 

barite 

coal 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hartford Co., Meriden Quad. 

971 P : PERCIVAL, J.G., 1842, Report on the geology of the State of 

Connecticut: New Haven, Connecticut, Published by the State, 495 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

972 T : PERKINS, R.E., 1981, Sedimentology of the Upper Triassic redbeds of 

King•s County, Nova Scotia: M.S. Thesis, University of Massachusetts. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Maritime 
Page 324 

973 PM: PERLMUTTER, NATHANIEL M., 1959, Geology and ground-water resources of 

Rockland County, New York: New York State Department of Conservation, 

Water Power and Control Commission, Bulletin GW-42, 133 p. 

SUMMARY: The northern Newark Basin area consists chiefly of west-dipping, red 

and brown shale, sandstone, and conglomerate of the Brunswick Fm. 

and arkose of the Stockton Fm. in the SE area of the county. These 

units are the principal aquifers with median yields of 300 gpm with 

water moderately hard. The Palisade and Ladentown diabase sills 

yield a median of 5 gpm. Water-bearing properties, chemistry, and 

well logs are presented. 

KEYWORDS: general geology 

hydrology 

EOGRAPHIC AREA: Newark Basin, New York, Rockland County 

MAPS: Geol: (bar scale only) 

Mise: well locations 

DATA: Chern. (type of data): water 

974 T : PERRIN, JOHN D., 1976, Geology of the Newgate Prison Mine, East 

Granby, Connecticut: M.S. Thesis, University of Connecticut. 

KEYWORDS: econow~c geology 

copper 

lead 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co. 

975 M PESSL, FRED, JR., AND LANGER, W.H., 1972, Bedrock geology, Hartford 

North quadrangle, Connecticut: U.S. Geological Survey Miscellaneous 

Geological Investigations Map, 1-784-B. 

KEYWORDS: bedrock geology 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: [1:24,000] 
Page 325 

976 F : PETERS, T.A., PETERS, J.J., AND WEBER, J., 1978, Paterson, New Jersey: 

Mineralogical Record, v. 9, p. 157-179. 

SUMMARY: Mineral collecting localities described include: New Street 

Quarries, Prospect Park, and the McKiernan and Bergin Quarry. 

Zeolites and sulfides are described and outlined paragenetically 

according to W.T. Schaller, 1932. 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: quarries, mineral specimens 

977 p PETERSON, TODD A., BROWN, L.D., COOK, F.A., KAUFMAN, S., AND OLIVER, 

J.E., 1984, Structure of the Riddleville Basin from COCORP seismic 

data and implications for reactivation tectonics: Journal of Geology, 

v. 92, p. 261-271. 

SUMMARY: Seismic reflection data delineate the basin buried beneath the 

Coastal Plain 200 km NW of Savannah. The east-trending basin 

contains north-dipping strata in a lower section and more horizontal 

strata in an upper section of the 3-km deep basin. The lower section may represent lacustrine units or clastics interlayered with 

basalt. A south-dipping normal fault along the basin's northern 

edge truncates the strata and merges at depth with a major Paleozoic 

thrust -the Augusta fault. This implies Early Mesozoic reactivation of the thrust and a pre-existing structural control governing 

basin location. 

KEYWORDS: buried basins 

structure 

faults 

geophysics 

seismic profiles 

GEOGRAPHIC AREA: Georgia 

MAPS: Geol: basin location 

Geophys: seismic profiles 
978 M 

Page 326 

PHILBIN, P.W., AND GILBERT, F.P., 1968, Aeromagnetic map of the 

Springfield North Quadrangle, Hampden and Hampshire Counties, 

Massachusetts: u.s. Geological Survey, Map GP-618. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

979 M PHILBIN, P.W., AND GILBERT, F.P., 1968, Aeromagnetic map of the West 

Springfield Quadrangle and part of the Southwick Quadrangle, Hampden 

County, Massachusetts, and Hartford County, Connecticut: U.S. Geological Survey, Map GP-635. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

980 M PHILBIN, P.W., AND KIRBY, J.R., 1964, Aeromagnetic map of parts of the 

Hackensack and Paterson Quadrangles, Bergen and Passaic Counties, New 

Jersey: U.S. Geological Survey, Map GP-492. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:31,680] 

981 M PHILBIN, P.W., AND KIRBY, J.R., 1964, Aeromagnetic map of the Nyack 

Quadrangle and part of the White Plains Quadrangle, Bergen County, New 

Jersey, and Rockland and Westchester Counties, New York: U.S. Geological Survey, Map GP-493. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 

MAPS: Geophys: aeromagnetism [1:31,680] 
982 M 

Page 327 

PHILBIN, P.W., AND KIRBY, J.R., 1964, Aeromagnetic map of the Park 

Ridge Quadrangle, Bergen County, New Jersey and Rockland County, New 

York: U.S. Geological Survey, Map GP-494. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 

MAPS: Geophys: aeromagnetism [1:31,680] 

983 M PHILBIN, P.W., AND KIRBY, J.R., 1964, Aeromagnetic map of parts of the 

Yonkers and Mount Vernon Quadrangles, Bergen County, New Jersey, and 

Bronx, Rockland, and Westchester Counties, New York: U.S. Geological Survey, Map GP-495. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 

MAPS: Geophys: aeromagnetism [1:31,680] 

984 M PHILBIN, P.W., AND SMITH, C.W., 1966, Aeromagnetic map of the Avon 

Quadrangle, Hartford County, Connecticut: U.S. Geological Survey, 

Geophysical Investigations Map GP-594. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

985 M PHILBIN, P.W., AND SMITH, C.W., 1966, Aeromagnetic map of the Collinsville Quadrangle, Litchfield and Hartford Counties, Connecticut: U.S. 

Geological Survey, Geophysical Investigations Map GP-588. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 328 

986 M PHILBIN, P.W., AND SMITH, C.W., 1966, Aeromagnetic map of the Hartford 

North Quadrangle, Hartford County, Connecticut: U.S. Geological Survey, Map GP-595. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

987 M PHILBIN, P.W., AND SMITH, C.W., 1966, Aeromagnetic map of the 

Manchester Quadrangle, Hartford and Tollan Counties, Connecticut: 

u.s. Geological Survey, Map GP-596. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

988 M PHILBIN, P.W., AND SMITH, C.W., 1966, Aeromagnetic map of the 

Rockville Quadrangle, Hartford and Tollan Counties, Connecticut: U.S. 

Geological Survey, Map GP-587. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

989 p PHILLIPS, ALEXANDER HAMILTON, 1899, The mineralogical structure and 

chemical composition of the trap of Rocky Hill, New Jersey: American 

Journal of Science, 4th Series, v. 8, p. 267-285. 

SUMMARY: A description of the mineralogy and chemistry of the dike is presented. It is considered an olivine diabase with acid feldspars 

concentrated in the younger portions. Field relations are outlined. 

KEYWORDS: diabase 

mineralogy 

petrology 

geochemistry 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Somerset Co., Rock Hill Quad. 

DATA: Chern. (type of data): major oxide (bulk, augite, feldspar) 
990 p 

Page 329 

PHILLIPS, J.D., 1977, Magnetic basement near Charleston, South 

Carolina- a preliminary report: in, Rankin, D.W., ed., Studies 

Related to the Charleston, South Carolina Earthquake of 1886- a 

preliminary report: U.S. Geological Survey Professional Paper 1028, 

p. 138-149. 

SUMMARY: Depth to crystalline basement and a (Mesozoic) basalt horizon are 

delineated by aeromagnetic data in the Middleton place area. Other 

magnetic features are discussed and interpreted in conjunction with 

seismic and geologic data. 

KEYWORDS: geophysics 

magnetism 

subsurface 

buried basins 

GEOGRAPHIC AREA: South Carolina 

991 p PHILLIPS, JEFFREY D., 1983, Paleomagnetic investigations of the Clubhouse Crossroads basalt: U.S. Geological Survey Professional Paper 

1313-C, 18 p. 

SUMMARY: A 256-m. thick basalt flow overlying Triassic red beds consists of 

23 flow units. Six flows have reversed magnetic polarity. The mean 

thermal remanent magnetization for the 23 flows is 35.4+3.2°. In 

one core, five reversed-polarity intervals are separated by four of 

normal polarity. The minimum age of the basalt is considered to be 

170 m.y. 

KEYWORDS: basalt 

geophysics 

paleomagnetism 

buried basins 

GEOGRAPHIC AREA: South Carolina 

992 A : PHILPOTTS, A.R., 1973, Clinobronzite in the diabase of eastern 

Connecticut: American Geophysical Union, Transactions, v. 54, p. 492. 

KEYWORDS: diabase 

petrology 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 330 

993 P PHILPOTTS, A.R., 1978, Rift-associated igneous activity in eastern 

North America: in, Neumann, E.R., and Ramberg, I.B., (eds.), 

Petrology and geochemistry of continental rifts: D. Reidel Publishing 

Co., NATO Advanced Study Institute Proceedings, Paleorift Systems, 

Boston, Massachusetts, Vol. 1, p. 133-154. 

KEYWORDS: diabase 

basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Regional 

994 P : PHILPOTTS, A.R., 1979, Silicate liquid immiscibility in tholeiitic 

basalts: Journal of Petrology, v. 20, p. 99-118. 

SUMMARY: Petrographic study of immiscible silicate liquids (i.e., fresh 

glare) in basalt of the Pomperaug Basin in conjunction with experi- mental work, indicates that tholeiitic magmas may commonly develop 

immiscible silicate liquids. Implications for differentiation are 

outlined. 

KEYWORDS: basalt 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

DATA: Chern. (type of data): major oxides 

Photos: thin sections 

995 P : PHILPOTTS, A.R., AND DOYLE, C.D., 1980, Immiscibility in tholeiites: 

a discussion: Mineralogical Magazine, v. 43, p~ 939-940. 

KEYWORDS: basalt 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

996 p PHILPOTTS, A.R., AND DOYLE, C.D., 1983, Effect of magma oxidation 

state on the extent of silicate liquid immiscibility in a tholeiitic 

basalt: American Journal of Science, v. 283, p. 967-986. 

KEYWORDS: basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
997 A 

Page 331 

PHILPOTTS, A.R., AND REICHENBACK, I., 1983, Liquidus relations and 

differentiation of Mesozoic basalts of the Hartford basin, Connecticut: Geological Society of America, Abstacts with Programs, v. 15, 

p. 122. 

SUMMARY: Oxygen fugacity studies indicate that the Holyoke Basalt fractionated from the Talcott at considerable depth (lower cru~t}, and 

that the Hampden Basalt differentiated from the Talcott at a higher 

level, possibly within the Triassic red beds (see Reichenback, et 

al., 1983}. 

KEYWORDS: basalt 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

998 A PHILPOTTS, A.R., DOYLE, C.D., AND THOMAS, M.A., 1980, Effect of magma 

oxidation state on the extent of liquid immiscibility in a tholeiitic 

basalt: Geological Society of America, Abstracts with Programs, v. 

12, no. 7, p. 499. 

KEYWORDS: basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecituct 

999 P PHILPOTTS, ANTHONY R., AND GRAY, NORMAN H., 1974, Inverted clinobronzite in Eastern Connecticut diabase: American Mineralogist, v. 

59, p. 374-377. 

SUMMARY: Morphology of bronzite phenocrysts from the chilled margins of a 

diabase dike indicates the mineral crystallized monoclinically (2/m) 

and later inverted to orthorhombic form. 

KEYWORDS: diabase 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Middlesex Co. 

DATA: Photos: photomicrographs 
Page 332 

1000 p PICARD, M.D., AND HIGH, L.R., 1963, Rhythmic alternations in the 

Triassic Chugwater and Brunswick Formations, Wyoming and New Jersey: 

Wyoming University Contributions to Geology, v. 2, p. 87-99. 

SUMMARY: The textural features of alternations exposed along the Delaware 

River at Milford, N.J., are described and consist of a resistant, 

poorly sorted siltstone with sandstone interbeds and a less resistant mudstone with poorly sorted siltstone interbeds. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hunterdon Co., Frenchtown Quad. 

DATA: Photos: outcrop 

1001 T PICKETT, THOMAS ERNEST, 1962, Stratigraphy of the Dan River Triassic 

Basin in North Carolina: M.S. Thesis, University of North Carolina, 

54 p. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Dan River Basin, North Carolina 

1002 T PIEPUL, ROBERT G., 1975, Analysis of jointing and faulting at the 

southern end of the Eastern Border Fault, Connecticut: University of 

Massachusetts, Department of Geology, Contribution 23, 109 p. 

SUMMARY: Computer-assisted analysis of joints and fractures at the southern 

end of the Hartford Basin and the adjacent pre-Triassic rocks 

indicates that many Triassic structures reflect or overprint the 

pre-existing tectonic fabric. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

DATA: Plots: stereonet pole diagrams 

1003 T : PIERCE, T.A., 1976, Petrology of dolerite-metadolerite dikes of southeastern New England: M.S. Thesis, University of Rhode Island. 

KEYWORDS: diabase 

petrology 

GEOGRAPHIC AREA: New England 
1004 A 

Page 333 

PIERCE, THOMAS A., AND HERMES, 0. DON, 1978, Petrology and geochemistry of diabase and metadiabase dikes in Southeastern New England: 

Geological Society of America, Abstracts with Programs, v. 10, p. 80. 

SUMMARY: Of the two types, the diabase dikes are Triassic and strike NE, as 

opposed to the E-W trending Paleozoic metadiabases. The diabases 

are not quartz normative but olivine and nepheline normative, 

transitional betwen alkali basalts and olivine tholeiites. The 

dikes occur east of the Avalonian-Appalachian suture. 

KEYWORDS: geochemistry 

petrology 

diabase 

GEOGRAPHIC AREA: Regional, New England 

1005 p PILGER, REX H., JR., 1978, A closed Gulf of Mexico, Pre-Atlantic Ocean 

plate reconstruction and the early rift history of the Gulf and North 

Atlantic: Gulf Coast Association of Geological Societies, Transactions, v. 28, p. 385-393. 

SUMMARY: Prior to the opening of the Gulf, South America is shown to have 

been adjacent to the Gulf coast. In the early Mesozoic, opening of 

the Gulf and the Atlantic coast was in a N-S direction and by rightlateral movement, respectively. The Gulf oceanic floor is older 

than that of the Atlantic, and initial Pangaea break-up was 

concentrated along axes of Appalachian-Hercynian mountain belts. 

KEYWORDS: tectonics 

GEOGRAPHIC AREA: Regional, Gulf Coast 

1006 p PILGER, REX H., JR., 1981, The opening of the Gulf of Mexico: implications for the tectonic evolution of the Northern Gulf Coast: Gulf 

Coast Association of Geological Societies, Transactions, 31st Annual 

Meeting, v. 31, p. 377-381. 

SUMMARY: The Gulf is shown to have opened synchronously with the N. Atlantic 

(180-130 Ma.) in a NW-SE direction. Atlantic and Gulf spreading 

centers were linked by transform faults. Basin formation in the 

Gulf Coast involved shallow grabens and crustal thinning with an 

exponential basin subsidence. 

KEYWORDS: tectonics 

GEOGRAPHIC AREA: Gulf Coast 
Page 334 

1007 M PITKIN, J.A., AND PHILBIN, P.W., 1969, Aeromagnetic map of the 

Belchertown Quadrangle, Hampshire County, Massachusetts: U.S. 

Geological Survey, Map GP-663. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

1008 M PITKIN, J.A., AND PHILBIN, P.W., 1969, Aeromagnetic map of the Mt. 

Holyoke Quadrangle, Hampshire and Hampden Counties, Massachusetts: 

U.S. Geological Survey, Map GP-662. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

1009 M PITKIN, J.A., AND PHILBIN, P.W., 1969, Aeromagnetic map of the Mt. 

Toby Quadrangle and part of the Greenfi e 1 d Quadrang_l e, Franklin and 

Hampshire Counties, Massachusetts: U.S. Geological Survey, Map 

GP-660. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

1010 PM: PLATT, JAMES N., JR., 1957, Sedimentary rocks of the Newark Group in 

the Cherry Brook Valley, Cant.on Center, Connecticut: American Journal 

of Science, v. 255, p. 517-522. 

SUMMARY: A small Triassic basin outlier is described and occurs 1.25 miles 

west of the Hartford Basin. A lower conglomerate is in 11Contact 11 

with the Hoosac schist and grades upward in section into red 

arkoses, shale, and sandstone. Beds dip 15 degrees to the southeast 

and terminate against a probable eastern border fault. No basalt or 

diabase occurs. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Cherry Brook Basin, Connecticut, Hartford Co., New Hartford 

Quad., Collinsville Quad. 

MAPS: Geol: [1:15,840] 
Page 335 

1011 A POLIVKA, DAVID R., 1979, The thermal metamorphic effects of a diabase 

sill: North Bergen, New Jersey: Ohio Journal of Science, v. 79, 

April Program Abstracts, p. 24. 

SUMMARY: (No specific data are presented.) Samples from the Lockatong Formation exposed below its contact with a Palisades diabase apophyse 

were analyzed by x-ray diffraction and x-ray fluorescence to study 

the mineralogic and petrologic changes across the contact zone. 

KEYWORDS: diabase 

mineralogy 

geochemistry 

metamorphism 

hornfels 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Bergen County 

1012 M POPENOE, P., AND SMITH, E.P., 1969, Aeromagnetic map of the Easthampton Quadrangle, Hampshire and Hampden Counties, Massachusetts: 

U.S. Geological Survey, Map GP-661. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

1013 M POPENOE, P., AND SMITH, E.P., 1969, Aeromagnetic map of the Williamsburg Quadrangle and part of the Shelburne Falls Quadrangle, Franklin 

and Hampshire Counties, Massachusetts: U.S. Geological Survey, Map 

GP-659. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

1014 M POPENOE, P., AND ZANDLE, G.L., 1963, Aeromagnetic map of the Millers 

Falls Quadrangle, Franklin County, Massachusetts: U.S. Geological 

Survey, Map GP-434. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 
1015 M 

Page 336 

POPENOE, P., BROMERY, R.W., AND KIRBY, J.R., 1962, Aeromagnetic map of 

the Newtown Quadrangle, Fairfield, Litchfield, and New Haven Counties, 

Connecticut: U.S. Geological Survey, Map GP-366. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1016 M POPENOE, P., PHILBIN, P.W., AND GILBERT, F.P., 1968, Aeromagnetic map 

of the Hampden Quadrangle, Hampden County, Massachusetts, and Tolland 

County, Connecticut: U.S. Geological Survey, Map GP-629. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1017 M POPENOE, P., PHILBIN, P.W., AND GILBERT, F.P., 1968, Aeromagnetic map 

of the Ludlow Quadrangle, Hampden and Hampshire Counties, Massachusetts: U.S. Geological Survey, Map GP-619. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

1018 M POPENOE, P., PHILBIN, P.W., AND GILBERT, F.P., 1968, Aeromagnetic map 

of the Mount Tom Quadrangle and part of the Woronoco Quadrangle, 

Hampden and Hampshire Counties, Massachusetts: U.S. Geological 

Survey, Map GP-622. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 
1019 M 

Page 337 

POPENOE, P., PHILBIN, P.W., AND GILBERT, F.P., 1968, Aeromagnetic map 

of the Springfield South Quadrangle, Hampden County, Massachusetts, 

and Hartford and Tolland Counties, Connecticut: U.S. Geological 

Survey, Map GP-632. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1020 p POPENOE, PETER, AND ZIETZ, ISIDORE, 1977, The nature of the geophysical basement beneath the Coastal Plain of South Carolina and northeastern Georgia: U.S. Geological Survey Professional Paper 1028, p. 

119-137. 

SUMMARY: Aeromagnetic and gravity surveys suggest that a large part of the 

area in eastern Georgia and South Carolina is underlain by a 

Triassic basin containing basaltic sills and dikes. 

KEYWORDS: geophysics 

aeromagnetism 

gravity 

buried basins 

GEOGRAPHIC AREA: South Carolina, Georgia 

MAPS: Geophys: gravity, aeromagnetic (bar scales) 

1021 T POPOVICH, D.E., 1965, Distribution of certain elements in the major rock units of Cornwall and Morgantown Mines, Pennsylvania: M.S. 

Thesis, Pennsylvania State University, 73 p. 

KEYWORDS: economic geology 

1 ron 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 
Page 338 

1022 PM: POTH, CHARLES W., 1977, Summary ground-water resources of Lancaster 

County, Pennsylvania: Pennsylvania Geological Survey, Water Resources 

Report 43 (Bulletin W 43), 80 p. 

SUMMARY: Data from wells include water chemistry, hardness, depth of wells, 

lithology, yield, and pH. Data include diabase (9 wells, hardness 

of 100 mg/1, 10 gpm yield), Gettysburg and Hammer Creek Formations 

(10 wells, 16 gpm yield, 50 mg/1 hardness), New Oxford and Stockton 

Formations (400 wells, 12 gpm yield, 100 mg/1 hardness). 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lancaster County 

MAPS: Geol: [1:125,000] 

Mise: well locations 

1023 T : POTISAT, SOMSAK, 1978, Copper and uranium deposits in red beds of the 

Connecticut Valley: M.S. Thesis, Wesleyan University, 123 p. 

KEYWORDS: economic geology 

copper 

uranium 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1024 F POTTER, R.R., BINGLEY, J.M., AND SMITH, J.C., 1972, Appalachian 

stratigraphy and structure of the Maritime Provinces: 24th International Geological Congress, Guide to Excursion A57-C57, 48 p. 

SUMMARY: A field stop at Glenholme occurs in the red conglomerate and 

sandstone of the Annapolis Formation along the Bay of Fundy. A 

semi-arid depositional environment is suggested. A second field 

stop is at the McKay Head basalt of Economy Mountain. This basalt 

is considered younger than the North Mountain basalt. Only these 

two of the 41 field stops are Triassic locations. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Maritime Province, Canada 
Page 339 

1025 P : POWERS, SIDNEY, 1916, The Acadian Triassic (Part 1): Journal of 

Geology, v. 24, p. 1-26. 

SUMMARY: Descriptive geology of a number of localities within the Bay of 

Fundy area of Nova Scotia is presented. The general stratigraphy 

consists of (from lower to upper) the Annapolis Formation (red shale 

and sandstone, often calcareous), the North Mountain basalt flows, 

and the white, calcareous sandstone of the Scots Bay Formation. 

KEYWORDS: general geology 

stratigraphy 

basalt 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

MAPS: Geol: sketches 

1026 P : POWERS, SIDNEY, 1916, The Acadian Triassic (Part II): Journal of 

Geology, v. 24, p. 105-122. 

SUMMARY: This is a continuation of the descriptive geology and stratigraphy 

of the Bay of Fundy area and includes: Gerrish Mtn., Scots Bay, 

Bennetts Bay, Digby Gut, and Brier Island. Fossil fish, plant, and 

bivalve remains indicate the Acadian area is part of the Newark 

System and also correlates with the German Lettenkohle. 

KEYWORDS: general geology 

paleontology 

stratigraphy 

GEOGRAPHIC AREA: Maritime Province, Canada 

DATA: Photos: outcrops 

1027 P : POWERS, SIDNEY, 1916, The Acadian Triassic (Part III): Journal of 

Geology, v. 24, p. 254-268. 

SUMMARY: The structure of the Acadian area is outlined and consists of small, 

gentle folds within a monoclinal sequence that dips to the west and 

terminates against a western and northern margin normal fault 

system. Faulting occurred after sedimentation. The nature of the 

basalt flows is discussed for the Five Island volcanics, which 

include tuff and agglomerate, and the North Mountain basalt, which 

consists of several 150- to 300-foot flows. General depositional 

environments of the Acadian area are briefly outlined. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Maritime Province, Canada 
1028 M 

Page 340 

PRICE, VAN, CONLEY, J.F., PIEPUL, R.G., ROBINSON, G.R., AND THAYER, 

P.A., 1980, Geology of the Axton and Northeast Eden Quadrangles, 

Virginia: Virginia Division of Mineral Resources, Publication 22. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Danville Basin, Virginia, Pittsylvania Co., Northeast Eden 

Quad. 

MAPS: Geol: [1:24,000] 

1029 M PRICE, VAN, AND OTHERS, 1980, Geology of the Whitmell and Brosville 

Quadrangles, Virginia: Virginia Division of Mineral Resources, 

Publication 21. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Danville Basin, Virginia, Pittsylvania Co., Whitmell Quad., 

Brosville Quad. 

MAPS: Geol: [1:24,000] 

1030 p PRIVETT, D.R., 1977, An unusual octahedral fluorite, stilbite, 

laumontite, calcite, and quartz assemblage in Danville, Virginia: 

Virginia Minerals, v. 23, no. 1, p. 7-9. 

SUMMARY: Stilbite, fluorite, and laumontite occur associated with quartz in 

veins within granite and hornblende gneiss. The location is given 

as 11 behind the Riverside Shopping Center off U.S. Highway 58W11 in 

Danville. The gneiss and granite are altered (chloritized) and 

brecciated. (The occurrence may be of early Mesozoic age.) 

KEYWORDS: faults 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Danville Basin, Virginia, Pittsylvania County 

DATA: Photos: stilbite 
1031 A 

Page 341 

PRIVETT, DONALD R., 1966, Structure and petrography of some diabase 

dikes in Central South Carolina: Geological Society of America, 

Special Paper 87, p. 260. 

SUMMARY: Olivine diabase dikes trending 20-40° NW occur N and W of Columbia, 

S.C., and contain unaltered plagioclase, partly altered augite (to 

uralite), and partly altered olivine (to serpentine and magnetite). 

Plagioclase increases, while olivine plus pyroxene decrease from the 

dike edges to the centers. The dikes, which intrude metamorphics 

and granite, are of 11 questionable 11 Triassic age. 

KEYWORDS: diabase 

mineralogy 

GEOGRAPHIC AREA: South Carolina 

1032 A PROUTY, WILLIAM F., 1926, The Triassic of the Durham Basin: Elisha 

Mitchell Scientific Society, Journal, v. 42, p. 22-24. 

SUMMARY: The Durham Basin differs from the Sanford Basin in having no coal 

and black shale. The general geology and structure of the former is 

briefly outlined. Coarse gneiss, schist, and granite-bearing conglomerates (with some clasts several feet across) occur against the 

eastern border fault. Origin of the basins of the East Coast is 

attributed to erosional collapse of a graben-horst segmented anticlinorium, and assumes sedimentation in one large basin system now 

represented by erosional remnants. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

1033 A PROUTY, WILLIAM F., 1928, Triassic deposits of Durham Basin, North 

Carolina, and structural relations to other Triassic basins of Eastern 

North America: Geological Society of America, Bulletin, v. 39, p. 

210-211. 

SUMMARY: The sediments are considered to have accumulated under an arid, 

terrestrial climate. 10,000 feet of section is estimated. Basic 

dikes and sills occur along the basin periphery and center, 

respectively. Beds dip monoclinally east and terminate against the 

eastern border fault, active after and during late stages of sedimentation. A broad-terrain origin is favored whereby the basins 

represent remnants of a collapsed, broader, anticlinorium. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Durham Basin, North Carolina 
1034 p 

Page 342 

PROUTY, WILLIAM F., 1931, Triassic deposits of the Durham Basin and 

their relation to other Triassic areas of Eastern United States: 

American Journal of Science, v. 21, p. 473-490. 

SUMMARY: The general geology, structure, and origin of the basin is outlined. 

Sediments consist of gray and red arkosic sandstones, carbonaceous 

shales, conglomerates, and border fanglomerates. Beds dip southeast 

and terminate against the 70° dipping, eastern, normal border fault. 

Basin development is attributed to crustal buckling due to melting 

at depth, with Triassic sediment accumulating in grabens. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

1035 A PUFFER, J.H., AND HURTUBISE, D.O., 1983, Eastern North American 

Jurassic basalts: an interbasin petrologic model: Geological Society 

of America, Abstra-cts with Programs, v. 15, no. 6, p. 665. 

SUMMARY: High-Ti02 magmatism throughout the basins reflects a nearly synchronous event and not hot-spot activity. Augite compositional 

homogeneity among these areas is cited for both the Ti02-rich 

basalts and the overlying high-Fe basalts. Upper mantle fractionation is suggested. 

KEYWORDS: basalt 

geochemistry 

GEOGRAPHIC AREA: Regional 
1036 p 

Page 343 

PUFFER, J.H., AND LECHLER, P., 1980, Geochemical cross section through the Watchung basalt of New Jersey: Geological Society of America, 

Bulletin, Part II, v. 91, p. 156-191. 

SUMMARY: Interpretation of the chemistry of the three basalt flows reveals 

that the First Watchung is a high-Ti02 type (Weigand and Ragland, 

1970); the Second is a fractionation product of the First and 

resembles the Holyoke Basalt; and the Third is the prodijct of an 

1ndependent magma genetically unrelated to the First. Evidence for 

the latter is provided by flow evidence as well. Comparisons are 

made to the Palisades Sill. Early Mesozoic magmatic evolution is 

outlined. 

KEYWORDS: basalt 

petrology 

geochemistry 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Mise: sample locations 

DATA: Chern. (type of data): basalt (major oxide and trace elements) 

Plots: MgO variation 

1037 p PUFFER, J.H., HURTUBISE, D.O., GEIGER, F.J., AND LECHLER, P., 1981, 

Chemical composition and stratigraphic correlation of Mesozoic basalt 

units of the Newark Basin, New Jersey, and the Hartford Basin, 

Connecticut: summary: Geological Society of America, Bulletin, v. 

92, p. 155-159. 

SUMMARY: The First Watchung and Talcott basalts are similar chemically and 

are placed stratigraphically at the base of the Hettangian. Rates 

of fractionation and similarity of the Second Watchung and Holyoke 

basalts indicate these two flows may be correlated and genetically 

tied to the earlier flows. The Third Watchung and Hampden flows 

eruped from a new, second magma source that had reached advanced 

fractionation. 

KEYWORDS: basalt 

geochemistry 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hartford Basin, Connecticut 

MAPS: Section: stratigraphic 

DATA: Chern. (type of data): major oxide and trace 
1038 A 

Page 344 

PUFFER, J.H., PESTANA, E.M., AND THEOKRITOFF, G., 1983, Geochemical 

characteristics of rift related volcanic rocks in the Appalachian 

orogen: Geological Society of America, Abstracts with Programs, v. 

15, p. 184. 

SUMMARY: Early Mesozoic basalts of the Atlantic margin are tholeiitic instead 

of the expected alkalic basalts associated with plume-generated 

triple junctions. The Hadrynian basalts near Chatham, N.Y., associated with Iapetus ocean rifting are iron- and titanium-enriched 

tholeiites that differ from the early Mesozoic basalts. 

KEYWORDS: basalt 

petrology 

GEOGRAPHIC AREA: Regional 

1039 A PUFFER, JOHN H., AND HURTUBISE, DONLON 0., 1982, Early Jurassic basalt 

of Fundy Basin, Nova Scotia: Geological Society of America, Abstracts 

with Programs, v. 14, p. 74. 

SUMMARY: The McKay Head and North Mountain basalts are geochemically similar 

and suggest that the former is a continuation of the latter. This 

high Ti02-type basalt resembles the Talcott (Conn.), Orange Mountain 

(N.J.), York Haven (Pa.), and Mt. Zion Church (Va.) basalts. Major 

oxides: 52.65 Si, 1.01 Ti, 14.29 Al, 10.38 FeO, 7.01 Mg, 10.39 Ca, 

2.37 Na, and 0.78 K. 

KEYWORDS: basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

DATA: Chern. (type of data): major oxide 
1040 p 

Page 345 

PUFFER, JOHN H., AND LECHLER, PAUL, 1979, The geochemistry of 

Cushetunk Mountain, New Jersey: New Jersey Academy of Science, 

Bulletin, v. 24, p. 1-5. 

SUMMARY: This horseshoe-shaped diabase intrusion lies along the east side of 

the Flemington Fault and grades from a fine-grained, quartznormative tholeiite at both contacts to a coarser, iron-rich 

granophyre in its interior. Petrography is outlined. Chemically, 

the diabase correlates with the high-Fe, quartz-normative type 

(Weigand and Ragland, 1970) and resembles the Second Watchung basalt 

more closely than the First or Third Watchung. 

KEYWORDS: diabase 

petrology 

geochemistry 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): diabase (major oxide and trace) 

Plots: mafic index vs. Ti02 

1041 P PUFFER, JOHN H., AND LECHLER, PAUL, 1980, Geochemical cross sections 

through the Watchung basalt of New Jersey: summary: Geological 

Society of America, Bulletin, Part 1, v. 91, p. 7-10. 

SUMMARY: The petrogenesis of the three basalt flows is summarized in detail. 

Conclusions include: genesis of the second flow through fractionation of the first (a similar model may be applied to the second 

basalt flow in the Hartford Basin- the Holyoke flow), and the 

genesis of the third flow from a 11 normal 11 mid-Atlantic ridge basalt 

that was contaminated on ascension through the crust. 

KEYWORDS: basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Plots: MgO variations 
1042 p 

Page 346 

PUFFER, JOHN H., AND PETERS, J.J., 1974, Magnetite veins in diabase of 

Laurel Hill, New Jersey: Economic Geology, v. 69, p. 1294-1299. 

SUMMARY: Magnetite veins, less than 3-cm thick, occupy joints within the 

diabase. Diabase adjacent to the veins is leached of iron 

originally present in pyroxene and Fe-Ti oxides. Origin of the 

magnetite is attributed to deuteric fluids transfering iron, and 

such an origin may be attributed to larger Cornwall-type ore bodies. 

KEYWORDS: diabase 

economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hudson Co., Jersey City Quad. 

DATA: Chern. (type of data): magnetite vein (major oxide) 

1043 P : PYNCHON, W.H.C., 1896, The ancient lavas of Connecticut: Connecticut 

Quarterly, v. 2, p. 308-319. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1044 p 

R 

RAGLAND, P.C., BRUNFELT, A.O., AND WEIGAND, P.W., 1971, Rare-earth 

abundances in Mesozoic dolerite dikes from Eastern United States: 

in, Brunfelt, A.O., and Steinnes, E., eds., Activation Analysis in 

Geochemistry and Cosmochemistry, Universitet Sforlaget, Oslo, p. 

227-235. 

SUMMARY: Three distinct REE patterns are evident: moderately fractionated 

pattern w.r.t. chondrites and highest REE abundance (high-Ti quartz 

tholeiite), unfractionated and lowest abundance (olivine tholeiite), 

and an intermediate member (low-Ti quartz tholeiite). Selective 

diffusion from crustal country rocks may explain the patterns. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Regional 

DATA: Chern. (type of data): major oxide, trace, REE 
1045 A 

Page 347 

RAGLAND, P.C., AND HATCHER, R.D., JR., 1980, Mesozoic olivinenormative diabase in North Carolina: multiple compositional types and 

orientations: Geological Society of America, Abstracts with Programs, 

v. 12, p. 205. 

SUMMARY: Four dike domains are recognized from SW to NE: (1) NW-trending, 

(2) N-trending, (3) NW-trending, (4) composite domain. Dikes (1) 

are less evolved (more primitive) than dikes (2). Dikes (3) are 

chemically 11 enigmatic, 11 and two or three olivine-normativ~ magma 

types existed in this area. Relative age data are not avilable. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: North Carolina 

1046 A RAGLAND, P.C., AND WHITTINGTON, DAVID, 1983, Early Mesozoic diabase 

dikes of eastern North America: magma types: Geological Society of 

America, Abstracts with Programs, v. 15, no. 6, p. 666. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Regional 

1047 A RAGLAND, PAUL C., 1983, 11 Primitive 11 Mesozoic diabase dikes of eastern 

North America: primary or derivative?: Geological Society of 

America, Abstracts with Programs, v. 15, p. 92. 

SUMMARY: The olivine-tholeiite suite of intrusives does not represent primary 

melts from the mantle in part because of LIL element discrepancy. 

Data from fine-grained, non-porphyritic diabases indicate that all 

intrusive types can be derived from the partial melting of olivineor quartz-normative magma parents, the least fractionated of these 

having a mafic index of 0.7 and 0.6, respectively. The olivinetype magma fractionated by the 11 Fenner Trend 11 or by iron plus silica 

enrichment. 

KEYWORDS: diabase 

petrology 

GEOGRAPHIC AREA: Regional 
1048 p 

Page 348 

RAGLAND, PAUL C., HATCHER, ROBERT D., JR., AND WHITTINGTON, DAVID, 

1983, Juxtaposed Mesozoic diabase dike sets from the Carolinas: a 

preliminary assessment: Geology, v. 11, p. 394-399. 

SUMMARY: Dike orientations are studied, and a systematic correlation of 

chemical type with orientation and age is suggested. Two dike 

trends are evident: diverging N-S trending system that converges 

near Charleston, and a more abundant NW trending group. The former 

group may have developed by crustal deformation above a mantle 

plume. Other tectonic implications are noted. 

KEYWORDS: diabase 

structure 

GEOGRAPHIC AREA: North Carolina, South Carolina 

MAPS: Mise: dike patterns 

DATA: Plots: MyO variation diagrams 

1049 p RAGLAND, PAUL C., ROGERS, JOHN J.W., AND JUSTUS, PHILIPS., 1968, 

Origin and differentiation of Triassic dolerite magmas, North 

Carolina, USA: Contributions to Mineralogy and Petrology, v. 20, p. 

57-80. 

SUMMARY: The average bulk composition of the dolerite dikes is presented. Of 

the ten dikes studied, one exhibits crystal settling of olivine, one 

exhibits a central micropegmatite, and all but three indicate 

decreasing oxygen pressure during crystallization. Comparisons are 

made to other igneous provinces, and the N.C. dolerite is considered 

an oceanic tholeiite. Continental mantle and crust may not have 

existed beneath the Piedmont in the Early Mesozoic. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: North Carolina 

DATA: Chern. (type of data): major oxide, trace elements 

Plots: mineral and chemical traverses across dikes; Si02 vs. 

Fe/Mg+Fe; Mg0-Fe0-K20 + Na20 
1050 p 

Page 349 

RANDAZZO, A.F., AND COPELAND, R.E., 1976, The geology of the northern 

portion of the Wadesboro Triassic Basin, North Carolina: Southeastern 

Geology, v. 17, p. 115-138. 

SUMMARY: Fanglomerates occur along the NW border, where complex faulting 

occurs. Post-depositional movement along the SE Jonesboro border 

fault has tilted the beds to the SE. Fanglomerate-filled outliers 

further to the east indicate the basin was once exposed wider than 

it is now. Cross faulting along the Pekin cross structure may have 

uplifted the basin with respect to the Durham Basin, thus eroding 

perhaps 5000 feet of section including the Cumnock Fm. The sedimentary rocks and structure are further discussed. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Wadesboro Basin, North Carolina 

MAPS: Geol: sketches 

DATA: Plots: sandstone composition 

1051 T RANDAZZO, ANTHONY F., 1965, The stratigraphy of the Wadesboro Triassic 

Basin in North and South Carolina: M.S. Thesis, University of North 

C a ro 1 i n a , 52 p • 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Wadesboro Basin, North Carolina 

1052 p RANDAZZO, ANTHONY F., SWE, WIN, AND WHEELER, WALTER H., 1970, A study 

of tectonic influence on Triassic sedimentation - the Wadesboro Basin, 

Central Piedmont: Journal of Sedimentary Petrology, v. 40, no. 3, p. 

998-1006. 

SUMMARY: Structural splintering produced a complex series of parallel horsts 

and grabens on the western margin, resulting in fanglomerate deposition. Lack of such clastics along the eastern border may suggest 

that the eastern fault was active after deposition; but fanglomerates present as remnant outliers within the Coastal Plain further 

east suggest that faulting may have been syndepositional. A 11 1ocal 

basin 11 origin is suggested. 

KEYWORDS: sedimentation 

structure 

faults 

GEOGRAPHIC AREA: Wadesboro Basin, North Carolina 

MAPS: Geol: sketches 
1053 T 

Page 350 

RASTEGAR, I., 1972, A detailed study of the diabase dikes in the 

Middle Haddam Quadrangle, Connecticut: M.S. Thesis, Wesleyan University, 87 p. 

KEYWORDS: mineralogy 

diabase 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Middlesex Co., Middle Haddam 

Quad. 

1054 p RATCLIFFE, NICHOLAS M., 1971, The Ramapo fault system in New York and 

adjacent northern New Jersey: a case of tectonic heredity: Geological Society of America, Bulletin, v. 82, p. 125-142. 

SUMMARY: Studies of the cataclastic zones indicate a fault history beginning 

in the Precambrian and continuing in the Ordovician as rightlateral-transcurrent faulting. Syndepositional faulting in the Late 

Triassic produced the Hammer Creek Fm. fanglomerates. Current 

seismicity suggests that this 700 m.y. old fault zone represents a 

significant, deep crustal fracture system that trapped magmas which 

rose to the surface throughout its history. 

KEYWORDS: tectonics 

structure 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 

MAPS: Geol: sketches 

Section: cross sections 

1055 A RATCLIFFE, NICHOLAS M., 1979, Cataclastic rocks from the Ramapo fault 

and evaluation of evidence of reactivation on the basis of new core 

data: Geological Society of America, Abstracts with Programs, v. 11, 

p. 50. 

SUMMARY: Two cores intersected the fault zone at 83 and 141 meters, and the 

zone dips 60° southeast. The attitude of the cataclastic zone 

between Triassic lava flows and Precambrian gneiss agrees well with 

focal-plane solutions. Additional coring is in progress. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
1056 F 

Page 351 

RATCLIFFE, NICHOLAS M., 1980, Brittle faults (Ramapo fault) and 

phyllonitic ductile shear zones in the basement rocks of the Ramapo 

seismic zones, New York and New Jersey, and their relationship to 

current seismicity: in, Manspeizer, W., ed., Field Studies of New 

Jersey Geology and Guide to Field Trips, 52nd New York State 

Geological Association Meeting, p. 278-313. 

SUMMARY: This guide examines the cataclastic and mylonitic rocks constituting 

the Proterozoic to Mesozoic Ramapo seismic zone. The activation of 

the Mesozoic faulting is shown to parallel Grenvillian and 

Ordovician 11 grain. 11 The magnitude, seismic history, attitude of the 

fault zone, and the evidence of syndepositional faulting are outlined. 

KEYWORDS: tectonics 

structure 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: block diagrams, sketches 

Section: cross sections 

1057 A RAYMOND, CAROL A., ELLWOOD, BROOKS B., AND CHAVES, LISA, 1982, Paleomagnetic analyses of Lower Mesozoic diabase and basalt from the Central and Southern Appalachians: Geological Society of America, 

Abstracts with Programs, v. 14, p. 76. 

SUMMARY: Paleopoles calculated from 6 diabase sills, 4 dikes, and 3 flows in 

the Culpeper Basin are consistent and correlate with the accepted N. 

American 200 m.y. pole. However, correlating this pole result with 

K-Ar dates assigned to Hartford Basin dike and sill poles (175 and 

190 m.y., respectively), a 180-185 m.y. age is derived for the 

Culpeper units. Similarly, an older 190 m.y. age is assigned to 

Georgia Piedmont dikes. This pattern suggests a progression of dike 

emplacement from south to north. 

KEYWORDS: diabase 

basalt 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Culpeper Basin, Maryland, Virginia, Georgia 
Page 352 

1058 P : RAYMOND, PERCY E., 1927, The significance of red color in sediments: 

American Journal of Science, Fifth Series, v. 13, p. 234-251. 

SUMMARY: A moist, humid climate during basin deposition is considered because 

of the abundance of fossil vegetation, including ginkgoes, cycads, 

and ferns, the preservation of red color, and the abundance of 

vertebrate life. 

KEYWORDS: sedimentation 

climate 

GEOGRAPHIC AREA: Regional 

1059 p REDFIELD, W.C., 1856, On the relations of the fossil fishes of the 

sandstone of Connecticut and other Atlantic states to the Liassic and 

Oolitic Periods: American Journal of Science, 2nd series, v. 22, p. 

357-363. 

SUMMARY: This is a detailed discussion of the use of fish in assigning Early 

Mesozoic age to the Newark Group rocks. Fish species are outlined 

and attention is given to the work of Agassiz. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

1060 T REED, ALAN A., 1976, Stratigraphy, depositional environments and sedimentary petrology of the Lower Jurassic East Berlin Formation, central 

Connecticut: M.S. Thesis, University of Massachusetts, 175 p. 

KEYWORDS: sedimentation 

general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
1061 p 

Page 353 

REED, DONALD F., 1949, Investigation of Pickering Creek lead-zinc 

deposits, Chester County, Pennsylvania: U.S. Bureau of Mines, Report 

of Investigations 4451, 11 p. 

SUMMARY: A number of small lead-zinc veins occur in pre-Triassic gneiss and 

gabbro and extend into the Triassic Stockton Fm. with no change in 

mineralogy. Vein mineralogy consists of galena, sphalerite, 

chalcopyrite, pyrite, quartz, siderite, dolomite, fluorite, and 

barite. Vein and mine descriptions and descriptions of eight core 

holes are given. Diabase dikes also occur in the area. 

KEYWORDS: economic geology 

lead 

zinc 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Chester Co., Phoenixville Quad. 

MAPS: Mise: drillhole locations 

1062 p REED, JULIET C., 1976, Annotated bibliography of minerals new to the 

Pennsylvania list, 1965-1974: Mineralogical Society of Pennsylvania, 

83 p. 

SUMMARY: The cobalt minerals cobaltite and glaucodot are identified from 

hornfelsed Triassic sediments adjacent to diabase in the Kibblehouse 

Quarry in Perkiomenville; and cobaltite and arsenopyrite occur in 

the Dyer diabase quar~, Gickerville, associated with ·prehnite and 

babingtonite. (No other significant Triassic-hosted mineral 

occurrences are noted.) 

KEYWORDS: hornfels 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks County, Montgomery County 

1063 p REESIDE, JOHN B., JR. (CHAIRMAN), AND OTHERS, 1957, Correlation of the 

Triassic formations of North America exclusive of Canada: Geological 

Society of America, Bulletin, v. 68, p. 1451-1514. 

SUMMARY: A correlation chart is presented for Triassic rocks of N. America 

and includes the Eastern u.s. basins from Georgia to Massachusetts. 

An extensive annotation and bibliography is included. Units are 

Carnian to Norian with Rhaetian rocks present in Virginia and N. 

Carolina. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Regional 
1064 A 

Page 354 

REESMAN, R.H., FILBERT, C.R., AND KRUEGER, H.W., 1973, Potassium-argon 

dating of the Upper Triassic lavas of the Connecticut Valley, New 

England: Geological Society of America, Abstracts. with Programs, v. 

5, p. 211. 

SUMMARY: Potassium-argon dates on 14 samples of the Holyoke, Hampden, and 

Talcott basalts yield a consistent range of ages whose mean is 184 

m.y. + 8 m.y. No evidence for excess argon or argon loss is 

evident. 

KEYWORDS: geophysics 

paleomagnetism 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1065 A REICHENBACK, I., AND PHILPOTTS, A.R., 1983, Compositional relations 

between the Mesozoic basalts of the Hartford Basin, Connecticut: 

Geological Society of America, Abstracts with Programs, v. 15, p. 122. 

SUMMARY: Geochemical study indicates that the Holyoke and Hampden basalts can 

be derived by a 48% and 31% (respectively) solidification of the 

Talcott basalt. Study of the olivine and augite within the Talcott 

indicate that Talcott fractionation involved orthopyroxene and not 

olivine. 

KEYWORDS: basalt 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 355 

1066 PM: REINEMUND, JOHN A., 1955, Geology of the Deep River Coal Field, North 

Carolina: U.S. Geological Survey Professional Paper 246, 159 p. 

SUMMARY: This extensive work outlines the stratigraphy and petrography of the 

sedimentary rocks, the occurrence of igneous dikes and sills, the 

structure and geomorpology, and the economic geology of the Cumnock 

coal bed within the Deep River Basin. Emphasis is placed upon the 

properties of the coal, the structure of the beds, and ~he mine 

workings. Well logs are presented. 

KEYWORDS: economic geology 

coal 

copper 

general geology 

stratigraphy 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

MAPS: Geol: [1:96,000] 

Section: coal mine plans; measured sections; cross sections 

DATA: Photos: outcrops, photomicrographs 

Plots: sedimentary petrographic data 

1067 M: REINHARDT, JUERGEN, 1974, Geologic map of the Frederick Valley, 

Maryland: Maryland Geological Survey, Report of Investigations 23. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland, Frederick County 

MAPS: Geol: [1:62,500] 

1068 T RESSETAR, R.M., 1976, Major and minor element geochemistry on the 

Holyoke Basalt, Connecticut Triassic Basin: M.S. Thesis, University of South Carolina, 62 p. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 356 

1069 A : RESSETAR, ROBERT M., 1976, Geochemistry of the Holyoke Basalt: Geological Society of America, Abstracts with Programs, v. 8, p. 254-255. 

SUMMARY: This central of the three main flowsheets of the Connecticut Valley 

is an iron-rich, quartz-normative tholeiite consisting of at least 

three flows in the lower 120 feet that show little fractionation. 

Fractionation is similar to other N.J. and Pa. diabases. Results 

support the contention that the basalts were derived from a continental crust-trapped olivine tholeiite. 

KEYWORDS: basalt 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

1070 P: REYNOLDS, DONALD D., AND LEAVITT, DAVID H., 1927, A scree of Triassic 

age: American Journal of Science, Fifth Series, v. 13, p. 167-171. 

SUMMARY: The Leverett breccia is described as a monolithic talus breccia of 

metamorphic rock fragments of varying size that occurs against the 

eastern border fault and grades westward into the Mt. Toby alluvial 

fan conglomerate - the latter being polymictic and cemented by red 

sand and silt. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

1071 p RICE, W.N., AND GREGORY, H.E., 1906, Manual of the geology of 

Connecticut: Connecticut Geological Natural History Survey Bulletin, 

no. 6, 273 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1072 F RICE, WILLIAM NORTH, 1886, On the trap and sandstone in the gorge of 

the Farmington River at Tariffville, Connecticut: American Journal of 

Science, 3rd series, v. 32, p. 430-433. 

SUMMARY: A description of an exposure of the lower and upper basalt flows 

(Holyoke) and the sediments between them indicate that the basalts 

are contemporaneous and extrusive and not later intrusives. The 

exposure is along the Farmington River between Simsbury and 

Bloomfield. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford County 
1073 F 

Page 357 

RICE, WILLIAM NORTH, AND FOYE, WILBUR GARLAND, 1927, Geology of 

Middletown, Connecticut, and vicinity: Connecticut Geological and 

Natural History Survey, Bulletin 41, 137 p. 

SUMMARY: The Triassic sedimentary rocks are briefly described and an outline 

is given of the geomorphologic and depositional history of the 

Connecticut Valley. Field guides are presented for a number of 

Triassic and Triassic-Highland exposures in the area. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Middlesex County 

MAPS: Geol: sketches 

1074 p RICHARDS, HORACE G., 1945, Deep oil test at Salisbury, Wicomico 

County, Maryland: American Association of Petroleum Geologists, 

Bulletin, v. 29, no. 8, p. 1196-1202. 

SUMMARY: A well drilled in 1944, 6 miles east of Salisbury in the Coastal 

Plain, intersected Triassic rocks between depths of 5529 and 5563 

feet. Rocks are described as 11 red and greenish shale, with alternating layers of coa~se arkosic sandstone ... Beneath 5563 feet are 

crystalline rocks interpreted as Precambrian basement. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Maryland 

1075 p RICHARDS, HORACE G., 1945, Subsurface stratigraphy of Atlantic Coastal 

Plain between New Jersey and Georgia: American Association of Petroleum Geologists, Bulletin, V. 29, no. 7, p. 885-955. 

SUMMARY: Well logs and locations are presented for wells in the Coastal 

Plain. Those that intersect Triassic rocks are: Salisbury, Md. 

(5529-5563 ft.); Bowling Green, Virginia (1160-1550 ft.); Florence, 

S. Carolina (1335-1750 ft.); Clayton, Alabama (5372-5572 ft.); 

Hillard, Florida (4795-4817 ft.). 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Regional 
1076 p 

Page 358 

RICHARDS, HORACE G., 1948, Studies on the subsurface geology and 

paleontology of the Atlantic Coastal Plain: Academy of Natural 

Sciences of Philadelphia, Proceedings, v. 100, p. 39-76. 

SUMMARY: Brief descriptions of a number of wells drilled in the Coastal Plain 

are presented, many of which intersect Triassic rocks. Locations 

where Triassic rocks are encountered include: Runyon, N.J., at 307 

to 310 feet; Salisbury and Berlin, Md., at 5529 to 5563 feet and 

6486 to 7157 feet, respectively. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Regional 

1077 p RICHARDS, HORACE G., 1949, The occurrence of Triassic rocks in the 

subsurface of the Atlantic Coastal Plain: Pennsylvania Academy of 

Science, Proceedings, v. 23, p. 45-48. 

SUMMARY: A brief review is given of known data supporting the existence of 

buried Triassic basins in southeastern Maryland; in Caroline County, 

Virginia; at Florence and Summerville, South Carolina; and at 

Camilla, Georgia, and Hilliard, Florida. Data from wells in these 

areas are cited. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: Regional 

1078 A RICHARDS, HORACE G., 1954, Subsurface Triassic in Eastern North 

Carolina: American Association of Petroleum Geologists, Bulletin, v. 

38, p. 2564-2565. 

SUMMARY: A well drilled 10 miles northeast of Elizabeth City encountered 

Triassic shale, diabase, and calcareous chert at a depth of 4910 

feet to the bottom of the well at 5500 feet. Samples are on file at 

the Academy of Natural Sciences of Philadelphia. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: North Carolina 
Page 359 

1079 F RICHARDS, HORACE G., 1956, Geology of the Delaware River: Mineralogical Society of Pennsylvania, Philadelphia, 106 p. 

SUMMARY: Descriptions are given for twenty-five localities within the 

Stockton, Lockatong, and Brunswick Formations in Bucks, Montgomery, 

and Chester Counties (Pa.) and Hunterdon and Mercer Counties (N.J.). 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 

1080 P : RICHARDSON, CHARLES SAMUEL, 1854, The Old Bristol Copper Mine, 

Connecticut: Mining Magazine, v. 3, p. 251-255. 

SUMMARY: The history and mine workings are discussed. Ore occurs in an 

80-foot thick zone of micaceous and feldspathic 11 flookan, 11 gneiss, 

and slate along the margin of the basin between Triassic and preTriassic rocks. Details of some of the underground ore relations 

are given. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co., Bristol Quad. 

1081 T : RICHARDSON, CREEL, 1928, A history of the Simsbury copper mines: M.A. 

Thesis, Trinity College. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1082 F RIDLEY, ROBERT W., AND 01

CONNER, JAMES V., 1979, The Culpeper Basin of 

the Triassic lowlands of northern Virginia: in, Exline, J.D., ed., 

Guidebook for Field Trips in Virginia, National Association of Geology 

Teachers, Eastern Section, April 1979, p. 49-59. 

SUMMARY: Field trip stops include: Balls Bluff Formation, Centreville 

diabase quarry, Manassas Sandstone, eastern contact (unconformable 

and faulted), hornfels zone at Goose Creek, Leesburg conglomerate, 

and the Mount Zion Church basalt. Discussions and road log are 

included. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
Page 360 

1083 A RIGOTTI, P., AND SCHMIDT, V.A., 1976, Upper Triassic secular variation 

as recorded by the Palisades Sill, New Jersey: American Geophysical 

Union, Transactions, v. 57, p. 238. 

SUMMARY: The sill is shown to have recorded a several thousand year secular 

variation record whose VGP trace corresponds with other Upper 

Triassic paleopoles and ranges in the area of 60-77°N, 94-118°E. 

Secular variation in the Upper Triassic is apparently similar to 

that observed today. 

KEYWORDS: diabase 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

1084 p RIMA, DONALD R., MEISLER, HAROLD, AND LONGWILL, STANLEY, 1962, Geology 

and hydrology of the Stockton Formation in Southeastern Pennsylvania: 

Pennsylvania Geological Survey, Bulletin W-14, 111 p. 

SUMMARY: The Stockton Formation is divided into a lower arkosic conglomerate, 

a middle arkosic sandstone, and an upper shale member. The three 

members pinch and grade into one another locally. The middle arkose 

and upper shale have the highest (130 gpm) and lowest (20 gpm) 

yields, respectively. Water is of the calcium bicarbonate type with 

an average hardness of 202 ppm. Well logs and well data are 

presented for about 200 wells. 

KEYWORDS: general geology 

hydrology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery Co., Bucks Co., 

Chester Co. 

MAPS: Geol: [1:24,000] 

Section: cross sections 

Mise: well locations with water quality data 

DATA: Chern. (type of data): water 
1085 p 

Page 361 

ROBBINS, E. IBERALL, AND TRAVERSE, ALFRED, 1980, Degraded palynomorphs 

from the Dan River (North Carolina) -Danville (Virginia) Basin: 

in, Price, V., Jr., and others, eds., Carolina Geological Society 

Field Trip Guidebook, 1980, Trip X, 5 p. 

SUMMARY: A study of core and outcrop samples from the Cow Branch Formation 

yields twenty-four taxa of palynomorphs that confirm a late Carnian 

(late Triassic) age for the lacustrine unit. Processing of the 

palynomorphs and their syndepositional and diagenetic degradation 

are outlined. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Dan River Basin, North Carolina, Danville Basin, Virginia 

1086 T ROBBINS, E.I., 1981, Fossil Lake Danville: the paleoecology of a Late 

Triassic ecosystem on the North Carolina-Virginia border: Ph.D. 

Thesis, Pennsylvania State University. 

KEYWORDS: sedimentation 

paleontology 

GEOGRAPHIC AREA: Danville Basin, Virginia; Dan River Basin, North Carolina 

1087 A ROBBINS, E.I., 1982, Economic potential of ancient lakebeds in the 

Newark rift system (eastern North America): Geological Society of 

America, Abstracts with Programs, v. 14, no. 1-2, p. 77. 

SUMMARY: Fossil fuels, phosphate, uraniuim, copper, and zinc occur in the 

basin lacustrine deposits throughout the Newark Supergroup. A 

model is developed which integrates tectonic processes with biological activity, climate, hydrology, and sedimentology. 

Minerals precipitate primarily at aerobic-anaerobic interfaces. 

KEYWORDS: economic geology 

coal 

GEOGRAPHIC AREA: Regional 

1088 p ROBBINS, E.I., 1983, Accumulation of fossil fuels and metallic 

minerals in active and ancient rift lakes: Tectonophysics, v. 94, p. 

633-658. 

KEYWORDS: economic geology 

coal 

GEOGRAPHIC AREA: Regional 
Page 362 

1089 A ROBBINS, E.I., GOODWIN, B., WILKES, G.P., AND WEEMS, R.E., 1983, Coal 

deposits of the Newark rift system (eastern North America): Geological Society of America, Abstracts with Programs, v. 15, no. 3, p. 

122. 

SUMMARY: Coal deposits of Carnian age (Late Triassic) in the Dan RiverDanville, Deep River, Farmville, Richmond, and Taylorsville Basins 

contain pollen and spores suggesting a swamp assemblage of conifers 

and pteridosperms. The Newark rift system coal beds show similarities to modern, lacustrine, peat-forming swamps. 

KEYWORDS: economic geology 

coal 

paleontology 

GEOGRAPHIC AREA: Regional 

1090 A ROBBINS, E.I., NIKLAS, K.J., AND SANDERS, J.E., 1979, Algal kerogens 

in the Newark Group lakebeds - their bearing on the Early Mesozoic 

History of the Atlantic continental margin: Palynology, v. 3, p. 291. 

SUMMARY: Five Portland Formation shale beds are considered to have been 

deposited in a large algal-rich lake whose algal matter, now amorphous organic matter, consists of three kerogen types: mucilaginous 

blue-green algae sheaths, zooplankton fecal pellets, and amorphous 

Botryococcus. Newark Group debris transported to the Baltimore 

Canyon consists of a hematite, algal sheath, and Rhaetian-Liassic 

pollen and spore metallo-organic suite. 

KEYWORDS: sedimentation 

paleontology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1091 T: ROBERTS, J.K., 1922, The Triassic of northern Virginia: Ph.D. Thesis, 

Johns Hopkins University, 272 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
Page 363 

1092 p ROBERTS, J.K., 1923, Jurassic? intrusives of Piedmont Virginia: 

Pan-American Geologist, v. 39, p. 289-296. 

SUMMARY: Diabase dikes are considered to be Jurassic in age (based on field 

relations). The Belmont, Sterling, Mount Pony, and Buzzard Mountain 

diabase sills are described, the former containing a pegmatite with 

coarse fluorite. The mineralogy and petrography of the dikes and 

sills are outlined briefly. 

KEYWORDS: general geology 

diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Virginia 

DATA: Chern. (type of data): major oxide 

Photos: photomicrographs 

1093 P : ROBERTS, J.K., 1923, Triassic basins of Northern Virginia: 

Pan-American Geologist, v. 39, no. 3, p. 185-200. 

SUMMARY: Five distinct basins are recognized. Border conglomerates consist 

of rocks derived from the Blue Ridge schists and metabasalts, the 

Shenandoah limestones, and the Piedmont granites. The distribution 

and character of these units as well as the sandstone and shales are 

outlined, the latter constituting 60% of the total section and 

occurring in the central areas of the basins. Border faults are 

described. The symmetrical pattern of border conglomerates, 

followed inward by sandstone and then shale, indicates that each 

individual type is time-stratigraphic, with fining upward processes 

occurring at each margin. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Virginia 
Page 364 

1094 p ROBERTS, J.K., 1924, Petrographic analysis of Triassic sandstone: 

Pan-American Geologist, v. 41, p. 22-30. 

SUMMARY: Six samples of sandstone are petrographically studied (from 

locations near Manassas and Centreville). Mineral percentages and 

sample descriptions are given. No specific conclusions are reached 

and attention is given to the technical procedure and ferric oxide 

content which imparts a red color. 

KEYWORDS: sediments 

mineralogy 

petrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

DATA: Photos: photomicrographs 

1095 p ROBERTS, J.K., 1928, The geology of the Virginia Triassic: Virginia 

Geological Survey, Bulletin 29, 205 p. 

SUMMARY: This extensive work is principally descriptive and includes: 

stratigraphy (border conglomerates, Manassas sandstone, Bull Run 

shale; mineralogy, texture, extent), mineralogy of the diabase and 

hornfels, adjacent pre-Triassic rocks, structure, coal mining and 

quality, barite and copper occurrences, and fossil occurrences of 

flora and fauna. A list of 150 references is included. 

KEYWORDS: general geology 

stratigraphy 

economic geology 

coal 

copper 

barite 

GEOGRAPHIC AREA: Virginia 

structure 

paleontology 

MAPS: Geol: (bar scale only) Danville Basin, Scottsville Basin, 

Farmville Basin, Richmond Basin, Culpeper Basin 

DATA: Chern. (type of data): coal 

Photos: outcrops, photomicrographs 
1096 A 

Page 365 

ROBERTS, JOSEPH K., 1938, Triassic rocks of Virginia: Geologial 

Society of America, Bulletin, v. 49, p. 1958. 

SUMMARY: The Triassic basins of Virginia lie along the eastern edges of the 

Blue Ridge and along the fall zone, the latter areas containing 

coal. Beds dip NW toward western boundary faults and consist of 

sediments derived chiefly from Piedmont crystalline rocks. Fossil 

floras are of Keuper age and are rare. Geophysical studies are 

suggested. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Virginia 

1097 A ROBINSON, PETER, HUBERT, J.F., WISE, D.U., AND HALL, L.M., 1978, The 

"JuraTrias" of Emerson (1898) on the new Massachusetts geologic map: 

Geological Society of America, Abstracts with Programs, v. 10, no. 2, 

p. 82-83. 

SUMMARY: A detailed summary is given of the sedimentologic and structural evolutio~ of the Hartford and Deerfield Basins. Specific data include 

evidence of syndeposition faulting, strike-slip in addition to dipslip motion, K-Ar dates suggesting that eastern border-fault movement 

began at about 215 my and continued to at least 140 m.y.b.p., and a 

30 degree westerly dip for the border fault. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

1098 F RODGERS, JOHN, 1968, General geology of the Triassic rocks of Central 

and Southern Connecticut: in, Orville, P.M., ed., Guidebook for 

Fieldtrips in Connecticut, New England Intercollegiate Geological 

Conference, 60th, Trip C-2, 9 p. 

SUMMARY: This road log includes the following stops: basal unconformity of 

New Haven arkose and schist, Dinosaur State Park, East Berlin Fm. 

lacustrine deposits, fanglomerates, agglomeratic basalt, and New 

Haven Arkose flood-plain facies. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 366 

1099 p RODGERS, JOHN, 1980, The geological history of Connecticut: 

Discovery, v. 15, p. 3-25. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1100 M RODGERS, JOHN, 1982, Preliminary bedrock geological map of Connecticut: Hartford, Connecticut, Connecticut Geological Natural History 

Survey. 

KEYWORDS: bedrock geology 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: [1:250,000] 

1101 P : ROGERS, HENRY D., 1853, Report on the Wheatley and Brookdale Mines, 

Chest Co., Penn.: Mining Magazine, v. 1, p. 375-387. 

SUMMARY: This report discusses the physical relationships of the veins, their 

mineralogy, the occurrence of diabase dikes, and the extent of 

underground workings. 

KEYWORDS: economic geology 

lead 

zinc 

silver 

barite 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Chester County 
Page 367 

1102 p ROGERS, HENRY DARWIN, 1858, The geology of Pennsylvania: J.B. 

Lippincott and Company, Philadelphia, 815 p. 

SUMMARY: Includes detailed descriptions of the mine workings and veins in the 

Phoenixville District, particularly the Wheatley and Brookdale 

Mines. Veins containing galena, sphalerite, chalcopyrite, barite, 

tetrahedrite, silver, and wulfenite occur along the south edge of 

the basin. Veins within Triassic rocks are generally richer in 

copper, and veins principally in the bordering gneiss are richer in 

lead, with zinc being ubiquitous. Descriptions of the French Creek, 

Warwick, and Knavertown Cornwall-type deposits are given. 

KEYWORDS: economic geology 

copper 

lead 

zinc 

barite 

silver 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Montgomery Co., Chester Co. 

1103 M ROOT, S.I., 1978, Geology and Mineral Resources of the Carlisle and 

Mechanicsburg Quadrangles, Cumberland County, Pennsylvania: Pennsylvania Geological Survey, Atlas 138ab. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York County, Carlisle Quad. 

MAPS: Geol: [1:24,000] 

1104 PM: ROOT, SAMUEL I., 1977, Geology and mineral resources of the Harrisburg 

West area, Cumberland and York Counties, Pennsylvania: Pennsylvania 

Geological Survey, Atlas 148ab, 106 p. 

SUMMARY: The Gettysburg Formation here consists of red mudstone with quartz 

and limestone conglomerate and sandstone lenses. A structural model 

is developed and suggests the basin consists of a number of SEdipping normal fault blocks resulting in the thickest Triassic sedimentary section near the center of the basin. A NW border fault is 

present but locally covered by a thin SE-dipping cover of Triassic 

that lies unconformably above Paleozoic limestone. 

KEYWORDS: general geology 

structure 

economic geology 

copper 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Cumberland Co., 

Lemoyne Quad., Steelton Quad. 

MAPS: Geol: [1:24,000] 
1105 p 

Page 368 

ROSE, A.W., AND KEITH, M.L., 1971, Trace metals in stream sediments of 

southeastern Pennsylvania: Pennsylvania State University, Earth and 

Mineral Sciences Experiment Station, Bulletin 86, 36 p. 

SUr1MARY: Statistical treatment of trace metal data and field checking of 

anomalous areas (see Keith and others, 1967) reveal localities 

worthy of further investigation for metallic deposits -especially 

in the area of Cornwall and Morgantown (copper and nickel). Data 

are presented. 

KEYWORDS: economic geology 

copper 

iron 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

1106 p ROSE, ARTHUR W., 1970, Atlas of Pennsylvania•s mineral resources, Part 

3: Metal mines and occurrences in Pennsylvania: Pennsylvania 

Geological Survey, Bulletin M50, 14 p. 

SUMMARY: Locations of Triassic-hosted occurrences are listed in a table, and 

locations are shown on an accompanying map. Deposits belong to 

several groups: copper and other metals in diabase, Cornwall-type 

magnetite, copper in hornfels adjacent to diabase, copper in sediments distant from diabase, lead-zinc-silver veins, and uranium. A 

number of the larger of these deposits are briefly described. 

KEYWORDS: bibliography 

economic geology 

iron 

copper 

lead 

zinc 

silver 

uranium 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

MAPS: Mise: deposit locations 
1107 p 

Page 369 

ROSE, ARTHUR W., 1972, Favorability for Cornwall-type magnetite 

deposits in Pennsylvania using geological, geochemical, and 

geophysical data in a discriminant function: Journal of Geochemical 

Exploration, v. 1, p. 182-194. 

SUMMARY: Variables used in a simple and stepwise discriminant analysis 

include stream sediment data, rock types, aeromagnetics, diabase 

sheet thickness, and diabase-carbonate contacts. The latter is 

found to be most important. Two additional favorable areas for the 

skarn deposits - SW of Gettysburg and at Boyertown - are recognized. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

1108 A ROSE, ARTHUR W., AND SMITH, ROBERT C., II, 1971, The occurrence and 

chemical composition of two distinct types of Triassic diabase in 

Pennsylvania: Pennsylvania Academy of Science, v. 45, p. 200. 

SUMMARY: Two chemically distinct Pennsylvania diabases are recognized: 

high Al and S, high alumina (Rossville type), and a higher Ti 

quartz tholeiite (York Haven-type). Field relations indicate 

the Rossville-type is younger; and behavior of magma concepts 

indicate the two were derived from distinct batches of magma. 

Rossville-type displays similar REE patterns with island arc 

tholeiites. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: Pennsylvania 

a 

and Cu 

that 

The 

1109 A ROSE, ARTHUR W., AND SMITH, ROBERT C., II, 1974, Assimilation of 

mantle and crust in the origin of Triassic diabase of Eastern U.S.: 

American Geophysical Union, Transactions, v. 55, p. 460. 

SUMMARY: Removal of 25% olivine, 8% clinopyroxene, and 11% plagioclase 

coupled with an acquisition of 14% orthopyroxene from the older 

olivine tholeiites can produce the younger low-Ti quartz normative 

Rossville type. Chemical data indicate little crustal assimilation 

in the previous case, but as much as 20% assimilation in the York 

Haven type of intermediate age. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: Regional 
Page 370 

1110 T ROSS, H.P., 1963, Detailed electrical surveys in the Triassic basin, 

north Chester County, Pennsylvania: M.S. Thesis, The Pennsylvania 

State University. 

KEYWORDS: geophysics 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Chester County 

1111 p ROTHE, GEORGE H., AND LONG, L. TIMOTHY, 1976, Geophysical investigation of a diabase dike swarm in West-Central Georgia: Southeastern 

Geology, v. 17, p. 67-79. 

SUMMARY: A 750-meter wide dike swarm in Meriwether County produces a gravity 

and magnetic anomaly of 2 milligals and 1000 gammas, respectively. 

With removal of the regional gradient, gravity anomalies suggest a 

70- to 80-degree eastward dip for the dikes. A koenigsberger ratio, 

Q, of one is suggested. 

KEYWORDS: diabase 

geophysics 

gravity 

magnetism 

aeromagnetism 

GEOGRAPHIC AREA: Georgia 

MAPS: Geophys: gravity, aeromagnetic 

DATA: Plots: geophysical profiles; NRM plot 

1112 P : ROTHWELL, R.P. (ed.), 1895, Connecticut brownstone: Mineral Industry, 

v. 3, p. 510-513. 

KEYWORDS: sediments 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1113 P : ROTHWELL, R.P. (ed.), 1896, Connecticut brownstone: Mineral Industry, 

v. 4, p. 555-558. 

KEYWORDS: sediments 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 371 

1114 PM: ROYER, DENISE W., 1983, Summary groundwater resources of Lebanon 

County, Pennsylvania: Pennsylvania Geological Survey, Fourth Series, 

Water Resources Report 55, 84 p. 

SUMMARY: Data are presented for wells within the Hammer Creek Fm. and diabase 

and include pH, yield, depth, hardness, and chemistry. Diabase 

yields moderately hard (103 mg/L) water with yields of 1 to 40 gal/ 

min. Hammer Creek sandstone yields good quality, hard water with a 

median yield of 90 gal/min. Hammer Creek quartz conglomerate yields 

softer water, pH 5.9, yield 120 gal/min. 

KEYWORDS: hydrology 

general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Lebanon County 

MAPS: Geol: [1:50,000] 

Mise: well locations [1:50,000] 

DATA: Chern. (type of data): water 

1115 P : RUSSELL, I.C., 1891, Are there glacial records in the Newark System?: 

American Journal of Science, v. 41, p. 499-505. 

KEYWORDS: sedimentation 

climate 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1116 P : RUSSELL, ISRAEL C., 1878, On the intrusive nature of the Triassic trap 

sheets of New Jersey: American Journal of Science, 3rd series, v. 15, 

p. 277-280. 

SUMMARY: An exposure in a ravine near Feltville along the western slope of 

the First Watchung Mountain reveals highly contact-metamorphosed 

sediments above the igneous rock, providing evidence for an intrusive origin. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 372 

1117 p RUSSELL, ISRAEL C., 1878, On the physical history of the Triassic 

Formation in New Jersey and the Connecticut Valley: New York Academy 

of Sciences, Annals, v. 1, no. 7-8, p. 220-254. 

SUMMARY: Study of the sedimentary rocks and eruptive rocks indicates that the 

two basins are remnants of an anticlinal arch, whose center has been 

eroded and whose original upheaval provided ingress for magmatic 

eruption. 

KEYWORDS: general geology 

structure 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hartford Basin, Connecticut 

1118 p RUSSELL, ISRAEL C., 1878, The Newark System: American Geologist, v. 

3, p. 178. 

SUMMARY: A review of previous literature concerning the basins reveals the 

use of a great many names, and the term Newark Group is considered 

most appropriate. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Regional 

1119 p RUSSELL, ISRAEL C., 1880, On the former extent of the Triassic 

Formation of the Atlantic states: American Naturalist, v. 14, p. 

703-712. 

SUMMARY: A broad-terrain hypothesis is favored whereby all the basin areas 

represent the erosional remnants of one continuous anticlinally 

folded basin. Evidence includes: dip of the Connecticut and Newark 

Basin areas, the existence of incomplete estuary deposits in each 

basin, the similarity of the basalt flows in Conn. and N.J., and the 

existence of basin outliers. Fossil evidence and the nature of the 

border conglomerates preclude a glacial environment. 

KEYWORDS: general geology 

structure 

sedimentation 

GEOGRAPHIC AREA: Regional 
Page 373 

1120 p RUSSELL, ISRAEL C., 1891, Has 11 Newark 11 priority as a group name: 

American Geologist, v. 7, p. 238-241. 

SUMMARY: It is suggested that the term "Newark 11 be elevated to 11System11 

status. A review of C.H. Hitchcock's 1890 arguments against the 

term "Newark 11 are outlined and debated. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Regional 

1121 p RUSSELL, ISRAEL C., 1892, Correlation papers, the Newark System: U.S. 

Geological Survey Bulletin 85, 344 p. 

SUMMARY: This is an extensive review of the sedimentary stratigraphy, 

paleontology, igneous rocks, deformation, and correlation of the 

Newark system. Review of all previous literature is presented by 

subject and author in a 200-page bibliography. Topics discussed in 

the text include: stratigraphy, depositional and climatic history, 

deformation, former extent, paleontology, and correlation. 

KEYWORDS: bibliography 

general geology 

stratigraphy 

structure 

sedimentation 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: sketches 

DATA: Photos: outcrops 

1122 p RUSSELL, ISRAEL C., 1895, The Newark system: Science, v. 1, p. 266-

268. 

SUMMARY: This is a brief discussion concerning the use of the term 11 Newark 11 

for the system of Early Mesozoic rocks. Russell favors Redfield's 11 Newark Group11 and opposes the disagreeing arguments of C.H. 

Hitchcock, which are outlined (see Froelich and Olsen, 1984). 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Regional 
Page 374 

1123 T RUSSELL, W.L., 1922, The Great Triassic Fault of southern Connecticut 

and its structural and stratigraphic relations: M.S. Thesis, Yale 

University, 95 p. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1124 P : RUSSELL, W.L., 1923, The camptonite dikes in the Connecticut Triassic: 

American Journal of Science, v. 5, p. 409-416. 

KEYWORDS: diabase 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1125 p RUSSELL, WILLIAM L., 1922, The structural and stratigraphic relations 

of the Great Triassic Fault of Southern Connecticut: American Journal 

of Science, v. 4, p. 483-497. 

SUMMARY: Studies of the fanglomerates and other geologic relations indicate 

that the eastern boundary fault was active before the Triassic, as 

evidenced by the pre-Triassic quartz vein, was active during sedimentation, as evidenced by the fanglomerates, and was active after 

deposition, as evidenced by the monoclinal tilt. The fault's dip 

and throw are calculated to be 30°-60° and 16,000-30,000 feet, 

respectively. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1126 T : RYAN, J.D., 1948, The petrology of the diabase intrusives of the 

Delaware River Valley: M.S. Thesis, Lehigh University. 

KEYWORDS: geochemistry 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 375 

1127 p RYAN, JOHN DONALD, AND WILLARD, BRADFORD, 1947, Triassic footprints 

from Bucks County, Pennsylvania: Pennsylvania Academy of Science, v. 

21, p. 91-93. 

SUMMARY: A brief description is presented of footprints in the upper 

Brunswick Fm. (red shale) one mile south of Kintersville on Rt. 611. 

The tracks are considered to have been made by a Triturus-like 

animal swimming in shallow water. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co., Riegelsville Quad. 

1128 A RYAN, SCOTT, 1984, Carbonate-quartz-barite veins of the Hartford 

Basin: Geological Society of America, Abstracts with Programs, v. 16, 

p. 61. 

SUMMARY: Such veins, occurring in N 45°E-trending normal faults, indicate 

alternate precipitation of carbonate and quartz later cemented by 

carbonate, quartz and barite, the latter suggesting that faulting 

occurred during mineralization. Lead, zinc, and copper sulfides, as 

well as tennantite, occur, often associated with vitreous bitumen. 

Fluid inclusion results are outlined and indicate hydrothermal 

fluids were C02-rich and 123°C to 200°C. Heated groundwater that 

had leached the sediments was the probable hydrothermal fluid 

source. 

KEYWORDS: economic geology 

barite 

silver 

copper 

zinc 

lead 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1129 M: RYDER, R.B., 1972, Contour map of the bedrock surface, Manchester 

Quadrangle, Connecticut: U.S. Geological Survey, Map MF-452a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 
1130 M 

Page 376 

RYDER, R.B., AND HANDMAN, E.H., 1973, Contour map of the bedrock 

surface, Hartford South Quadrangle, Connecticut: U.S. Geological 

Survey, Map MF-487a. 

KEYWORDS: surficial geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: depth to bedrock [1:24,000] 

s 

1131 P : SACHS, WALTER P., 1940, The story of the Great Notch Quarry: Rocks 

and Minerals, v. 15, no. 4, p. 111-115. 

SUMMARY: A history of the quarry's development is outlined. A list and 

description of the secondary minerals occurring at this locality 

along the First Watchung Mtn. basalt are given and include 

apophyllite, babingtonite, datolite, greenockite, pectolite, and 

stilbite. 

KEYWORDS: mineralogy 

basalt 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Passaic County 

1132 T SAINES, M., 1973, Hydrogeology and hydrogeochemistry of part of South 

Hadley, Massachusetts: Ph.D. Thesis, University of Massachusetts, 252 

p. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampshire Co., Mt. Holyoke 

Quad. 

1133 T SANCTON, JOEL A., 1970, The East Berlin Fm. of Massachusetts: a 

Triassic alluvial fan complex: M.S. Thesis, University of Massachusetts, Amherst, 132 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
1134 F 

Page 377 

SANDERS, JOHN E., 1958, Stratigraphy and structure of the Triassic 

rocks of central Connecticut: New England Intercollegiate Geological 

Conference, 50th Meeting, Trip Guide B. 

KEYWORDS: stratigraphy 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1135 p SANDERS, JOHN E., 1960, Structural history of Triassic rocks of the 

Connecticut Valley belt and its regional implications: New York 

Academy of Sciences, Transactions, Series II, v. 23, no. 2, p. 119-

132. 

SUMMARY: Border faults were active during deposition as evidenced by fanglomerates. After deposition, tilting occurred and NW-trending warps 

developed. The Danbury anticlinal axis represents the regional arch 

axis that produced the Newark Basin-Hartford Basin mirror symmetry, 

which is also expressed in the basement rocks. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: sketches 

Section: cross section 

1136 A SANDERS, JOHN E., 1961, Tectonophysics of Lat~e Triassic deformation, 

Northeastern United States: Journal of Geophysical Research, v. 66, 

p. 2557-2558. 

SUMMARY: A broad terrane hypothesis is favored in which the Newark and 

Hartford Basins represent erosional remnants of an arched longitudinal basin that was 50 km. wide. Effects of this crustal arching 

on the regional Paleozoic and Precambrian geology are outlined and 

include the southward disappearance of the Taconic allochthon and 

the origin of Appalachian drainage. 

KEYWORDS: tectonics 

structure 

GEOGRAPHIC AREA: Regional 
1137 A 

Page 378 

SANDERS, JOHN E., 1962, Relationships of folds to faults in Upper 

Triassic rocks, northeast of the Schuylkill (Pennsylvania to 

Massachusetts): Geological Society of America, Special Paper 68, p. 

260-261. 

SUMMARY: Three fold regimes are noted: (1) a medial longitudinal arch within 

the depressed fault block; (2) transverse anticlines and synclines, 

perpendicular to the marginal graben faults ((1) and (2) involve 

vertical crustal movements); (3) E-W trending valley and ridge-type 

folds developed during strike-slip faulting of the Hopewell and 

Flemington Faults. (3) is youngest and offsets folds of (2). 

Regional history was not one of simple tensional relaxation. 

KEYWORDS: tectonics 

structure 

GEOGRAPHIC AREA: Newark Basin, Hartford Basin, Pennsylvania, New Jersey, 

Connecticut, Massachusetts 

1138 A SANDERS, JOHN E., 1962, Stratigraphy of Talcott Formation (Upper 

Triassic), Southern Connecticut: Geological Society of America, 

Special Paper 68, p. 260. 

SUMMARY: The Talcott Formation is reinterpreted by mapping to consist of four 

basalt and three interbedded sedimentary members that are together 

1000 feet thick. From base up, these are: brecciated flow, sandstone, massive flow, sandstone, brecciated and pillowed flow, sandstone, and upper brecciated flows. 

KEYWORDS: general geology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven County, Branford 

Quad. 

1139 P : SANDERS, JOHN E., 1962, Strike-slip displacement on faults in Triassic 

rocks in New Jersey: Science, v. 136, p. 40-42. 

SUMMARY: The Hopewell and Flemington Faults, which trend north and intersect 

the Ramapo Fault, are extended 10 to 15 miles farther north. Based 

on the structure of the Somerville anticline, the Hopewell Fault 

shows, in addition to a dip-slip component, a 12-mile, right-lateral 

strike-slip component. Similar strike-slip dynamics may characterize the Flemington Fault as well. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: sketches 
Page 379 

1140 p SANDERS, JOHN E., 1963, Late Triassic tectonic history of Northeastern 

United States: American Journal of Science, v. 261, p. 501-524. 

SUMMARY: Structural study of the Newark and Hartford Basins indicates that 

the isolated basins are remnants of an elongate rift valley. A 

complex tectonic history is developed into four episodes including 

graben subsidence, arching, folding, and strike-slip faulting. 

Post-depositional erosional history and implications to regional 

tectonics are outlined. 

KEYWORDS: tectonics 

structure 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: sketches 

1141 A SANDERS, JOHN E., 1968, Lacustrine sedimentation in the Triassic of 

Connecticut: Geological Society of America, Special Paper 101, p. 

276-277. 

SUMMARY: Lake sediments are interbedded with and overlie the lava flows and 

occur in the basin center. Red siltstones dominate with calcitic 

and dolomitic units present. Many sedimentary structures are 

present: syndepositional faults, slumps, burrows, algal-reefs, 

ripple marks. Within lake deposits, lake bathymetry rather than 

regional slope governed sediment transport direction. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1142 p SANDERS, JOHN E., 1968, Stratigraphy and primary sedimentary 

structures of fine-grained well-bedded strata, inferred lake deposits, 

Upper Triassic, central and southern Connecticut: Geological Society 

of America, Special Paper 106, p. 263-306. 

SUMMARY: Coarse-grained, irregularly bedded deposits occur along the faulted 

margin; while the fine-grained, well bedded (red, gray, and black) 

strata occur well away from the fault and are considered to 

represent deposition in lakes of varying size that developed as a 

result of tectonic and lava flow damming. Paleocurrents, 

sedimentary structures, and environments are discussed. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Section: columnar 

DATA: Photos: outcrops, hand samples 
1143 F 

Page 380 

SANDERS, JOHN E., 1970, Stratigraphy and structure of the Triassic 

strata of the Gaillard graben, south-central Connecticut: Connecticut 

Geological and Natural History Survey, Guidebook 3, 15 p. 

SUMMARY: This field guide includes 13 stops in the East Haven, Branford, and 

Durham areas of southern Connecticut within a graben bounded to the 

east by the basin border fault and to the west by the Foxon fault. 

Units and lithologies included are the New Haven Arkose; the Talcott 

basalt breccias, pillows, and interbedded arkoses; and the Shuttle 

Meadow, East Berlin, Hampden, and Portland Fms. Emphasis is placed 

on the relationship between folds and faults within the basin. 

KEYWORDS: structure 

stratigraphy 

general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geol: sketches 

1144 A SANDERS, JOHN E., 1971, Triassic rocks, northeastern North America: 

regional tectonic significance in light of plate tectonics: 

Geological Society of America, Abstracts with Programs, v. 3, p. 

781-783. 

SUMMARY: A five-stage tectonic-structural history is developed to account for 

the complex structure of the basins (i.e., three sets of fold axes, 

right- and left-lateral strike-slip faults, and three episodes of 

dike injection perpendicular to the fold axes). This period of 

post-depositional instability occurred in the early Jurassic during 

a period of rapid paleomagnetic pole shifting between the 

Appalachian and Atlantic tectonic regimes. 

KEYWORDS: str~cture 

tectonics 

GEOGRAPHIC AREA: Regional 
Page 381 

1145 A SANDERS, JOHN E., 1971, Upper Triassic rocks, Northeastern North 

America: interpretation as products of tra.nsition period between 

ancient 11 Appalachian 11 and modern 11 Atlantic 11 lithosphere-plate regimes: 

Pennsylvania Academy of Science, v. 45, p. 199. 

SUMMARY: The tectonic histo~ is interpreted as not one of simple tension but 

one of a five-stage history: (1) tension, sedimentation, magmatism; 

(2) compression; (3, 4, 5) three successive episodes of tensional 

faulting, dike intrusion, compressional folding, and strike-slip 

faulting. Movements occurred during a 30-m.y. period between the 

Appalachian and Atlantic regimes. 

KEYWORDS: tectonics 

structure 

faults 

GEOGRAPHIC AREA: Regional 

1146 F : SANDERS, JOHN E., 1974, Guidebook to field trip in Rockland County, 

New York: Petroleum Exploration Society of New York, 87 p. 

SUMMARY: In addition to the road log, discussions concerning the potential 

for oil and gas reservoirs, the significance of border conglomerates, and the tectonic history are presented. 

KEYWORDS: general geology 

economic geology 

oil 

gas 

GEOGRAPHIC AREA: Newark Basin, New York, Rockland County 

MAPS: Geol: sketches 

DATA: Photos: photomicrographs (sed rocks) 
Page 382 

1147 p SANDERS, JOHN E., GUIDOTTI, CHARLES V., AND WILDE, PAT, 1963, Foxon 

Fault and Gaillard graben in the Triassic of Southern Connecticut: 

Connecticut Geological and Natural History Survey, Guidebook 2, 16 p. 

SUMMARY: The Foxon Fault is a SE-dipping normal fault that parallels the 

NW-dipping normal border fault and is several miles west of the 

border fault. The Gaillard graben is the area between the two 

faults. Transverse folds in the area only occur in the graben, 

which may have developed as an adjustment to the folding system. 

Dikes were emplaced along the Foxon Fault and are therefore not the 

feeders for the older basalt flows of the area. 

KEYWORDS: structure 

general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven, Branford Quad. 

MAPS: Section: stratigraphic 

1148 T SARGENT, J.D., 1949, The geology of the Windsor Locks quadrangle, 

Connecticut: M.A. Thesis, Department of Geology and Geography, 

University of Buffalo, Buffalo, N.Y., 38 p. 

KEYWORDS: bedrock geology 

structure 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1149 T SARRIS, N.J., 1955, Contributions to the stratigraphy and lithology of 

the Triassic sedimentary rocks in the Connecticut Valley of Massachusetts: M.S. Thesis, University of Massachusetts. 

KEYWORDS: general geology 

stratigraphy 

sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
Page 383 

1150 p SASSEN, ROGER, 1978, Natrolite and associate~d secondary minerals at 

the Chimney Rock Quarry, Bound Brook, New Jersey: Mineralogical 

Record, v. 9, p. 25-31. 

SUMMARY: Zeolites and other minerals are described from this quarry in the 

First Watchung basalt. From early to late, the paragenesis is: 

soluble salts (anhydrite, glauberite); quartz period (quartz, 

copper, silver); prehnite period (prehnite, datolite, copper sulfides); natrolite period (zeolites); calcite; and copper carbonate, 

iron oxide weathering products. 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Somerset Co., Bound Brook Quad. 

DATA: Photos: minerals 

1151 T : SAVAGE, E. LYNN, 1967, The Triassic sediments of Rockland County, New 

York: Ph.D. Thesis, Rutgers University. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, New York 

1152 F SAVAGE, E. LYNN, AND VANHOUTEN, F.B., 1968, Trip C: The Triassic 

rocks of the Northern Newark Basin: New York State Geological 

Association, Guidebook No. 40, p. 49-100. 

SUMMARY: The constitution and paleontology of the Stockton, Lockatong, and 

Brunswick Formations are outlined. The source of sediments is outlined, and various hypotheses are presented. Field trip stops are 

along the Palisades Sill, at Ladentown, and at Cherry Hill. 

KEYWORDS: general geology 

sedimentation 

sediments 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: sketches 

Mise: pebble composition; garnet, apatite, tourmaline, rutile, 

zircon distribution in sediments; cross bedding directions 
Page 384 

1153 A SCHAEFER, C.A., 1882, Native silver in New Jersey copper ores: 

Engineering and Mining Journal, v. 33, p. 90. 

SUMMARY: It is noted that native silver occurs at the Bridgewater mine two 

miles north of Somerville and that during early mining the silver 

payed for the copper smelting. (A note by W.B. Dersereux on p. 66, 

v. 33, indicates that the silver occurs in siliceous ore containing 

cuprite.) 

KEYWORDS: economic geology 

copper 

silver 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

1154 p SCHAEFFER, BOBB, AND MCDONALD, NICHOLAS G., 1978, Redfieldiid fishes 

from the Triassic-Liassic Newark Supergroup of eastern North America: 

American Museum of Natural History, Bulletin, v. 159, Article 4, p. 

130-173. 

SUMMARY: Four Newark Redfieldiid genera are described in detail, and their 

geologic occurrence with respect to all the basin areas is outlined. 

Geographically, Dictopyge shows the most narrow distribution 

(Richmond, Taylorsville, Scottsburg Basins), while Redfieldius and 

Synorichthys have a broader range. Redfieldius is Liassic in age, 

with the other genera being middle and upper Carnian. A correlation 

chart is included. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

DATA: Photos: fossil fish 

1155 p SCHALLER, WALDEMAR T., 1932, The crystal cavities of the New Jersey 

zeolite region: U.S. Geological Survey Bulletin 832, 90 p. 

SUMMARY: It is shown that glauberite and anhydrite crystallized first as lava 

reacted with lake water. Crystal cavities left by the removal of 

these and other zeolites are classed as rectangular (after 

anhydrite); lamellar (after anhydrite, calcite, babingtonite); 

rhombic (after glauberite); and other miscellaneous cavities. 

Babingtonite is in most cases not the primary mineral. Crystal 

morphology is emphasized. 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: mineral specimens 
1156 A 

Page 385 

SCHARNBERGER, C.K., NICHOLS, P.H., AND BRIA, J.J., 1979, Diabase dikes 

in Lancaster County, Pennsylvania: evidence of Late Triassic shear: 

Geological Society of America, Abstracts with Programs, v. 11, p. 52. 

SUMMARY: A z-shaped, sigmoidal pattern characterizes the dikes and is 

attributed to emplacement in echelon extension fractures resulting 

from dextral simple shear whose plane is N 70°W and whose angular 

shear is 40°. 

KEYWORDS: structure 

diabase 

faults 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lancaster County 

1157 p SCHILT, F.S., BROWN, L.D., OLIVA, J.E., AND KAUFMAN, SIDNEY, 1983, 

Subsurface structures near Charleston, South Carolina - results of 

COCDRP reflection profiling in the Atlantic Coastal Plain: in, Gohn, 

G.S., ed., Studies Related to the Charleston, South CarolinaiEarthquake of 1886 - tectonics and seismicity: U.S. Geological Survey 

Professional Paper 1313-H, p. H1-H19. 

SUMMARY: Interpretation of seismc profiles delineates the lower Mesozoic 

basalt layer in the Charleston-Summerville area. 

KEYWORDS: buried basins 

geophysics 

seismic profiles 

structure 

GEOGRAPHIC AREA: South Carolina 

MAPS: Section: fence diagram 

seismic profiles 

1158 p 

Geophys: 

SCHIPF, ROBERT G., 1961, Geology and ground water resources of the 

Fayetteville area: North Carolina Department of Water Resources, 

Ground-water Bulletin Number 3, 99 p. 

SUMMARY: Water chemistry and yield are presented for wells in Triassic rock 

from the Deep River Basin. Yields are generally low (less than 10 

gpm), and water is generally alkaline and hard. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina, Lee Co., Montgomery Co., 

Moore Co., Richmond Co. 

MAPS: Geol: sketches 

Mise: well locations 

DATA: Chern. (type of data): water 
Page 386 

1159 p SCHIPF, ROBERT G., 1964, Fayetteville 11 Buried Triassic Basin 11

: 

American Association of Petroleum Geologists, Bulletin, v. 48, p. 

721-723. 

SUMMARY: Well evidence between Raeford in Hoke County and Benson in Johnston 

County does not support the existence of a buried basin, as no red 

beds have been recovered. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: North Carolina 

MAPS: Geol: sketch 

1160 p SCHNABEL, R.W., 1968, Chemical analysis of selected samples of diabase 

and basalt from Connecticut: U.S. Geological Survey Open-File Report, 

6 p. 

SUMMARY: Chemical analyses (major oxides) are presented for thirty-two 

diabase and basalt samples (locations provided). Samples include: 

Holyoke, Hampden, and Talcott basalts, and Mount Carmel and West 

Rock diabase. 

KEYWORDS: diabase 

basalt 

geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

DATA: Chern. (type of data): major oxide {diabase, basalt) 

1161 M : SCHNABEL, ROBERT, 1960, Bedrock geology of the Avon Quadrangle: U.S. 

Geological Survey, Geologic Quadrangle Map GQ-134. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co. 

MAPS: Geol: [1:24,000] 

1162 M : SCHNABEL, ROBERT W., 1974, Bedrock geology of the Southwick Quadrangle: U.S. Geological Survey, Geologic Quadrangle Map GQ-1170. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts, Hampden Co. 

(Mass.), Hartford Co. (Conn.) 

MAPS: Geol: [1:24,000] 
Page 387 

1163 M : SCHNABEL, ROBERT W., 1975, Geology of the New Hartford Quadrangle: 

U.S. Geological Survey, Geologic Quadrangle Map GQ-1257. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co. 

MAPS: Geol: [1:24,000] 

1164 M SCHNABEL, ROBERT W., AND ERIC, JOHN H., 1964, Bedrock geology of the 

Windsor Locks Quadrangle: U.S. Geological Survey, Geologic Quadrangle 

Map GQ-388. 

KEYWORDS: general geology 

economic geology 

copper 

uranium 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co. 

MAPS: Geol: [1:24,000] 

1165 M SCHNABEL, ROBERT W., AND ERIC, JOHN H., 1965, Bedrock geology of the 

Tariffville Quadrangle: U.S. Geological Survey, Geologic Quadrangle 

Map GQ-370. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co. 

MAPS: Geol: [1:24,000] 

1166 p SCHULTZ, GEORG, AND HOPE, R.C., 1973, Late Triassic microfossil flora 

from the Deep River Basin, North Carolina: Palaeontographica Abt. B, 

v. 141, p. 63-88. 

SUMMARY: The microflora species (47) of a 20-foot section of the Pekin 

Formation (gray, shaly siltstone) at Gulf are described. A late 

Triassic age is suggested. Because the N.C. species correlate 

closely to European forms, a closer continental connection and a 

more equitable climate are suggested. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina, Chatham Co., Goldston 

Quad. 

DATA: Photos: microfossils 
Page 388 

1167 T : SCHUTZ, D.F., 1956, The geology of the Pomperaug Valley, Connecticut: 

Senior Thesis, Yale University, 45 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut 

1168 PM: SCOTT, R.G., 1974, The bedrock geology of the Southbury Quadrangle 

with map: Connecticut Geological and Natural Histo~ Survey, Quadrangle Report 30, 63 p. 

SUMMARY: The SE area of the basin is bounded by normal border faults and consists of east-dipping New Haven Arkose overlain by three basalt 

flows, displaying brecciated, pillowed, columnar, and amygdaloidal 

character, intercalated with arkose, shale, and conglomerate. 

Structural interpretations are discussed. Correlation of the basalt 

flows and sediments with those of the Hartford Basin to the east 

requires further paleomagnetic study. Coarse conglomerate in the 

Pomperaug Basin may preclude a source of the basalts and sediments 

from east of the Hartford Basin. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut, New Haven Co., Southbury Quad. 

MAPS: Geol: [1:24,000] 

1169 M SEGERSTROM, KENNETH, 1956, Bedrock geology of the Shelburne Falls 

Quadrangle, Massachusetts: U.S. Geological Survey Geologic Quadrangle Map GQ-87. 

KEYWORDS: general geolDgy 

GEOGRAPHIC AREA: Deerfirld Basin, Massachusetts, Franklin Co. 

MAPS: Geol: [1:31,680] 
1170 p 

Page 389 

SEGUIN, M.K., RAO, K.V., VENUGOPAL, D.V., AND GAHE, E., 1981, Paleomagnetism of parts of the Late Triassic diabase dike system associated 

with the Trans-New Brunswick aeromagnetic lineament: Canadian Journal 

of Earth Sciences, v. 18, p. 1776-1787. 

SUMMARY: Three diabase samples from the Caraquet dike yield pole and corresponding age data as follows: 82°E, 62°N (late Triassic 200-190 

m.y.); and 143°E, 78°N and 133°E, 74°N (late Jurassic 180-170 m.y.). Independent age data are lacking, and the occurrence of younger 

magnetization due to viscous partial thermoremanence is considered. 

KEYWORDS: diabase 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Maritime Province, Canada 

MAPS: Mise: sample locations 

DATA: Plots: pole positions; NRM vs. induced; demagnetization 

1171 p SEIDEMANN, D.E., MASTERSON, W.O., DOWLING, M.P., AND TUREKIAN, K.K., 

1984, K-Ar dates and 40Ar;39Ar age spectra for Mesozoic basalt 

flows of the Hartford Basin, Connecticut, and the Newark Basin, New 

Jersey: Geological Society of America, Bulletin, v. 95, p. 594-598. 

SUMMARY: Conventional K-Ar dates for plagioclase separates are: Talcott 

(bottom-186+8), Holyoke (middle-189+6), Hampden (top-230+12), First Watchung through Third (191+8~ 194+4, 185+4). 40Ar/ 

39Ar age spectrum for Talcott and-Hampdem flows-are discussed. 

Samples profiling the Hampdem flow yield higher ages in the coarse, 

altered, upP.er portions than the finer base, suggesting that excess 

radiogenic ~OAr is introduced via hydrothermal alteration. Correlation between basins is not attempted; however, the Second Watchung flow may have preceeded all Hartford Basin flows. 

KEYWORDS: basalt 

geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hartford Basin, Connecticut 

DATA: Plots: 40Arj39Ar vs. age 
Page 390 

1172 PM: SHALER, NATHANIEL SOUTHGATE, AND WOODWORTH, JAY BACKUS, 1899, Geology 

of the Richmond Basin, Virginia: U.S. Geological Survey, 19th Annual 

Report, Pt. 2, p. 385-519. 

SUMMARY: The stratigraphy and paleontology of the Tuckahoe and Chesterfield 

Groups are outlined. Previous structural interpretations, and the 

nature of the eastern and western borders, are discussed. Other 

topics include diabase dikes, coal deposits, erosional history, and 

internal basin structure. 

KEYWORDS: general geology 

stratigraphy 

paleontology 

economic geology 

coal 

structure 

GEOGRAPHIC AREA: Richmond Basin, Virginia 

MAPS: Geol: sketches; [1 inch = 2 miles] 

Section: geologic cross sections; stratigraphic 

DATA: Photos: outcrops 

1173 T SHANK, J.C., 1961, A detailed magnetic survey in the Traissic basin, 

North Chester County, Pennsylvania: M.S. Thesis, The Pennsylvania 

State University. 

KEYWORDS: geophysics 

magnetism 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Chester County 

1174 p SHANNON, EARL V., 1919, Famous mineral localities: the datolite 

locality near Westfield, Massachusetts: American Mineralogist, v. 4, 

p. 5-6. 

SUMMARY: The occurrence of datolite and calcite within sheared zones in the 

diabase of the Holyoke sheet is outlined. 

KEYWORDS: diabase 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampden County 
Page 391 

1175 p SHANNON, EARL V., 1919, On coarse gabbroid diabase in Westfield, 

Massachusetts: Journal of Geology, v. 27, p. 579-581. 

SUMMARY: The pegmatitic diabase occurring near the top of the Holyoke flow is 

attributed to the acquisition of water in the molten flow resulting 

in the formation of the pegmatitic chambers of augite and plagioclase. (See B.K. Emerson, 1905.) 

KEYWORDS: basalt 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts, Hampden County 

1176 A SHANNON, EARL V., 1920, The Trap Quarry at Meriden, Connecticut: 

American Mineralogist, v. 5, p. 34. 

SUMMARY: The mineral occurrences of the quarry in the amygdaloidal basalt are 

briefly outlined and include: calcite, anhydrite, diabantite, and 

datolite. 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven Co., Meriden Quad. 

1177 P : SHANNON, EARL V., 1925, An occurrence of xonotlite at Leesburg, 

Virginia: American Mineralogist, v. 10, p. 12-13. 

SUMMARY: Xonotlite admixed with diopside and thaumasite is found in limestone 

conglomerate adjacent to diabase. 5-mm veins of the mineral are 

also found in relatively unaltered conglomerate. No locality is 

given. Optical properties are outlined. 

KEYWORDS: mineralogy 

metamorphism 

zeolites 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun County 
1178 p 

Page 392 

SHANNON, EARL V., 1926, Mineralogy and petrography of Triassic limestone conglomerate metamorphosed by intrusive diabase at Leesburg, 

Virginia: U.S. National Museum, Proceedings, v. 66, Art. 28, 31 p. 

SUMMARY: Contact metamorphism of limestone conglomerate by diabase results in 

the formation of diopside-garnet zones (veins) which contain in 

paragenetic order: diopside, vesuvianite, andradite, serpentine, 

and magnetite. Distal, low-temperature veins contain diopside, 

datolite, apophyllite, barite, and calcite. Optical and crystallographic data are presented. 

KEYWORDS: mineralogy 

metamorphism 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun, Leesburg Quad. 

1179 p SHANNON, EARL V., 1926, The mineralogy and petrology of intrusive 

Triassic diabase at Goose Creek, Loudoun County, Virginia: U.S. 

National Museum, Proceedings, v. 66, Art. 2, 86 p. 

SUMMARY: This extensive work is a descriptive presentation of the mineralogy 

(with crystallographic emphasis) of the normal diabase, diabase 

pegmatite, albitic pegmatite, aplites, secondary mineral cavities, 

and hydrothermal alteration. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co., Leesburg Quad. 

DATA: Photos: mineral specimens; photomicrographs 

1180 T SHAUB, F.J., 1975, Interpretation of a gravity profile across the 

Gettysburg Triassic Basin: Ph.D. Thesis, Pennsylvania State University. 

KEYWORDS: geophysics 

gravity 

structure 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

1181 T: SHEARER, RALPH D., 1927, A cross section through the Durham Triassic 

Basin: M.S. Thesis, University of North Carolina, 24 p. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Durham Basin, North Carolina 
Page 393 

1182 A SICHKO, MICHAELS., 1974, A structural and petrological study of the 

Second Watchung basaltic flow near Pluckemin, New Jersey: Geological 

Society of America, Abstracts with Programs, v. 6, p. 73. 

SUMMARY: A complex history is revealed in three flows, a pillow-palagonite 

complex, volcanic breccia pipes, a feeder dike, and an iron-enriched 

flow unit. The Palisades Sill was intruded between the First and 

Second Watchung flow events. 

KEYWORDS: basalt 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

1183 P : SILLIMAN, BENJAMIN, 1830, Igneous or1g1n of some trap rocks: American 

Journal of Science, v. 17, p. 119-132. 

SUMMARY: This is a brief review of the field evidence supporting an igneous 

origin for the trap trocks of the Newark system. 

KEYWORDS: general geology 

diabase 

GEOGRAPHIC AREA: Regional 

1184 p SILLIMAN, BENJAMIN, JR., AND WHITNEY, J.D., 1855, Notice of the 

geological position and character of the copper mines at Bristol, 

Connecticut: American Journal of Science, v. 20, p. 361-368. 

SUMMARY: A detailed description is given of the history and mine workings in 

the deposit which lies between the Triassic sandstone and the 

Paleozoic metamorphic rocks. The ore zone, of which 3% is copper 

mineral, increases in width with depth to about 50 feet at a depth 

of 240 feet. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Bristol County, Bristol Quad. 

MAPS: Section: cross section of mine 

1185 T : SILVERSTEIN, HENRY, 1974, The New Haven Arkose of Connecticut 

(Triassic): M.A. Thesis, Brooklyn College, Brooklyn, N.Y., 73 p. 

KEYWORDS: sediments 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 394 

1186 A SIMPSON, DALE K., 1969, Hornfels associated with Triassic diabase: 

Geological Society of America, Abstracts with Programs, v. 1, p. 

55-56. 

SUMMARY: Contact metamorphism of the Brunswick (red shale) Fm. results in 

depletion of quartz and the formation of plagioclase-alkali 

feldspar-mica hornfels with chlorite, kaolinite, and apatite. 

Phosphorus contents of the contact and unaltered rocks are similar. 

Removal of silica is attributed to magmatic assimilation. 

KEYWORDS: metamorphism 

hornfels 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

1187 p SIMPSON, DALE R., 1969, Prehnite veins in Triassic diabase, 

Coopersburg, Pennsylvania: Geological Society of America, Bulletin, 

v. 80, p. 1355-1362. 

SUMMARY: Prehnite-rich veins contain early pyroxene and albite with later 

amphibole, chlorite, and prehnite. Alteration zones in the diabase 

consist of an outer hypersthene-altered-to-chlorite zone, a central 

chlorite zone, and an inner vein-adjacent amphibole zone. The 

albite in the veins contains numerous inner inclusions and 

inclusion-free rims indicating deposition by a hydrothermal fluid 

nith a later vapor phase. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks County 

DATA: Chern. (type of data): major oxide 

1188 M : SIMPSON, HOWARD E., 1966, Bedrock geology of the New Britain Quadrangle: U.S. Geological Survey, Geologic Quadrangle Map GQ-494. 

KEYWORDS: general geology 

economic geology 

copper 

lead 

zinc 

barite 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co. 

MAPS: Geol: [1:24,000] 
1189 p 

Page 395 

SIMS, SAMUEL J., 1968, The Grace Mine magnetite deposit, Berks County, 

Pennsylvania: in, Ridge, J.D., ed., Ore Deposits of the United 

States 1933-196~ Volume 1, American Institute of Mining and 

Metallurgical Engineers, p. 108-124. 

SUMMARY: A magnetite replacement ore-body occurs in Cambrian limestone 

between footwall diabase and hanging wall Triassic sediments. 

Pyrite, chalcopyrite, pyrrhotite, and sphalerite also occur within 

the serpentine, talc, chlorite gangue. Magnetite formed by replacement of serpentine. Ore formation occurred at 1500 bars and between 

500 and 675°C. History, geology, and mineralogy are further discussed. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks County, Morgantown Quad. 

MAPS: Geol: sketches 

DATA: Chern. (type of data): ore 

Plots: ore zbne (Fe - Si + Al - Mg + Ca) ternary; orebody chemical 

variations with depth 

1190 T SINCLAIR, HORACE A., 1981, Apatite fission track analysis of the 

Triassic Portland Formation, Connecticut River Valley: M.S. Thesis, 

Rensselear Polytechnic Institute, 74 p. 

KEYWORDS: radiometric age 

K/Ar dating 

fission-track dating 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1191 T SINGH, HARINDER, 1964, Diabase intrusions of a portion of the Durham 

Triassic Basin, North Carolina: M.S. Thesis, University of North 

Carolina, 23 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Durham Basin, North Carolina 
Page 396 

1192 A SIPLE, GEORGE E., AND MARINE, I.W., 1968, Newly discovered Triassic 

basin in the Central Savannah River area, South Carolina: Geological 

Society of America, Special Paper 101, p. 374-375. 

SUMMARY: A buried basin containing at least 95 feet of red and gray arkosic 

claystone and siltstone trends for 25 miles at N 57°E from Aiken, 

S.C., to the Savannah River. Geophysics has been used to outline 

the basin which has a southeast border fault and which may be a 

continuation of the Florence, S.C., buried basin. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: South Carolina 

1193 p SMITH, CHARLES, 1982, Bibliography of mines and quarries of Connecticut: Connecticut State Geological and Natural History, Open-File 

Report, 26 p. 

KEYWORDS: bibliography 

economic geology 

copper 

barite 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1194 PM: SMITH, LAURENCE L., 1931, Magnetite deposits of French Creek, 

Pennsylvania: Pennsylvania Geological Survey, 4th Series, Bulletin 

M-14, 52 p. 

SUMMARY: The general geology and structure of the area are outlined. Ore 

occurs within pre-Cambrian limestone within gneiss and consists of 

magnetite, pyrite, chalcopyrite in a calc-silicate gangue. A 

diabase intrusive adjacent to the limestone resulted in ore formation whose fluids were a late magmatic differentiate. The deposit 

is not exposed at the surface. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Chester Co., Pottstown Quad. 

MAPS: Geol: [1:62,500] 

DATA: Photos: hand samples; photomicrographs 
Page 397 

1195 T SMITH, ROBERT C., II, 1973, Geochemistry of Triassic diabase from 

southeastern Pennsylvania: Ph.D. Thesis, Pennsylvania State University, 262 p. 

KEYWORDS: geochemistry 

petrology 

diabase 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

1196 P : SMITH, ROBERT C., II, 1977, Zinc and lead occurrences in Pennsylvania: 

Pennsylvania Geological Survey, Mineral Resource Report 72, 318 p. 

SUMMARY: Detailed descriptions are given for a number of Triassic-hosted 

lead-zinc deposits and deposits closely associated with the Triassic 

rocks. The deposits include: Charlestown-Buckwalter, Chester 

County Mine, Jug Hollow Mine, Montgomery County Mine, New Galena, 

Perkiomen-Ecton Mine, Wheatley-Brookdale. 

KEYWORDS: economic geology 

lead 

zinc 

copper 

barite 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Chester Co., Bucks Co. 

MAPS: Mise: mine sketches 

DATA: Photos: underground workings 

1197 p SMITH, ROBERT C., II, AND HOFF, DONALD T., 1977, Newly discovered 

minerals at Stone Jug copper prospect, Adams County: Pennsylvania 

Geology, v. 8, no. 5, p. 14-16. 

SUMMARY: Chalcopyrite, molybdenite, powellite, and copper carbonates occur in 

the Gettysburg shale adjacent to a diabase intrusive, and a highgrade ore sample contains 180 ppm Mo, 3 oz/ton Ag, and .05 oz/ton 

Au. Further investigation in the area is suggested. 

KEYWORDS: economic geology 

copper 

molybdenum 

silver 

gold 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Adams Co., Biglerville Quad. 

MAPS: Mise: sketch of location 
Page 398 

1198 A SMITH, ROBERT C., II, AND ROSE, ARTHUR W., 1970, The occurrence and 

chemical composition of two distinct types of Triassic diabase in 

Pennsylvania: Geological Society of America, Abstracts with Programs, 

v. 2, p. 688. 

SUMMARY: The two types are: Rossville-type (higher Al and S, high-alumina 

basalt) and York Haven-type (higher Mg, Ti, Cu, quartz tholeiite). 

Uniformity within each type suggests magma homogeneity within the 

entire Pa. Triassic area. Similarity to oceanic tholeiite suggests 

the magmatic episode was an aborted rifting attempt. 

KEYWORDS: diabase 

petrology 

geochemistry 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

1199 A SMITH, ROBERT C., II, AND ROSE, ARTHUR W., JR., 1972, Major and trace 

elements in differentiates of Triassic diabase and their relationship 

to Cornwall-type deposits: Geological Society of America, Abstracts 

with Programs, v. 4, p. 671. 

SUMMARY: Diabase sheets in S.E. Pennsylvania show crystal fractionation by 

bronzite settling depleting the magma in Mg, Cr, and Ni. A residual 

quartz gabbro, magnetite-rich magma results, accompanied by loss of 

hydrothermal fluid. Estimates of final magma: 780°C, F02 (1o-16 

bars), FH2 (50 bars), FH20 (1900 bars). Separation of a late stage 

hydrothermal fluid may result in formation of magnetite-chalcopyrite 

ores. 

KEYWORDS: diabase 

petrology 

geochemistry 

economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 
1200 p 

Page 399 

SMITH, ROBERT C., II, ROSE, ARTHUR W., AND LANNING, ROBERT M., 1975, 

Geology and geochemistry of Triassic diabase in Pennsylvania: Geological Society of America, Bulletin, v. 86, p. 943-955. 

SUMMARY: Three diabase types are recognized: oldest Quarryville-type, dikes, 

olivine tholeiite; York Haven-type quartz tholeiite; Rossville-type, 

youngest, quartz tholeiite. Dike intrusion followed pre-existing 

basement structure. The latter two magmas resulted from fractionation and reaction with the crust and mantle. 

KEYWORDS: petrology 

geochemistry 

diabase 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

DATA: Chern. (type of data): major oxide, trace 

Plots: dike orientation 

1201 T SMITH, T.E., 1976, Paleomagnetism of the Lower Mesozoic diabase and 

arkose of Connecticut and Maryland: Ph.D. Thesis, Ohio State University. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Gettysburg Basin, Maryland 

1202 A SMITH, T.E., 1977, Paleomagnetic reversal in the Lower Mesozoic 

Medford diabase of Eastern Massachusetts: American Geophysical Union, 

Transactions, v. 58, p. 376. 

SUMMARY: The northern portion of the.sheet, a NE-trending dike (42°24'N, 

71°6'W), produced a mean pole at 96.1°E, 50.6°N. Curie temperatures 

ranged from 375-550°C. The dike showed normal polarity, whereas 

cross-cutting, mildly serpentinized dikes showed reversed or 

scattered polarity. This reversal may correspond to the 190 m.y. 

old Nvantsi Zone. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Massachusetts 
1203 A 

Page 400 

SMITH, T.E., 1978, Paleomagnetism of Newark group arkose, Connecticut 

and Maryland: American Geophysical Union, Transactions, v. 59, p. 

271. 

SUMMARY: Twelve samples from the New Haven and New Oxford Fms. yield good 

results in only three (103°E, 75°N; 92°E, 57°N; 50°E, 64°N). Other 

samples yielded anomalous results characterized by steep NRM 

inclinations (35-75°) that shallowed during cleaning. Anomalous 

results appear to be due to diagenetic pigmentation processes 

involving the iron oxides and hydroxides. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut; Gettysburg Basin, Maryland 

1204 A SMITH, T.E., AND NOLTIMIER, H.C., 1974, Paleomagnetic study of some 

Mesozoic diabase dikes and sills in Central Maryland and in the 

Connecticut Valley: American Geophysical Union, Transactions, v. 55, 

p. 675. 

SUMMARY: Woodsboro, Md., dike yielded VGP (+72°, +84°, k = 34); Franklinsville, Md., dike yielded (VGP +10°, +27°, k = 42) though samples may 

not have been in place; and Boyds Sill, Md. (VGP +45°, +101°, k = 

1.9). The VGP from the Woodsboro site lies west of the Lower 

Jurassic pole suggested by de Boer. No Connecticut data are cited. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Culpeper Basin, Maryland 
Page 401 

1205 p SMITH, T.E., AND NOLTIMIER, H.C., 1979, Paleomagnetism of the Newark 

trend igneous rocks of the North Central Appalachians and the opening 

of the Central Atlantic Ocean: American Journal of Science, v. 279, 

p. 778-807. 

SUMMARY: Data from the Barndoor, East Rock, Mt. Cannel, and West Rock intrusives together with previous data and biostratigraphy suggest two 

regional igneous pulses at 190 m.y. (83.2°E, 63.0°N) and 175 m.y. 

(103.2°E, 65.3°N) that agree with western U.S. polar wander paths. 

Data from Liberia and Morocco together with seafloor magnetic 

anomaly data indicate active spreading had not begun before 175 m.y. 

KEYWORDS: geophysics 

paleomagnetism 

tectonics 

GEOGRAPHIC AREA: Regional; Hartford Basin, Connecticut 

MAPS: Section: regional stratigraphic chart 

Mise: sample locations 

DATA: Plots: pole positions, VGP data 

1206 p SMITH, TIMOTHY E., 1976, Paleomagnetic study of Lower Mesozoic diabase 

dikes and sills of Connecticut and Maryland: Canadian Journal of 

Earth Sciences, v. 13, p. 597-609. 

SUMMARY: 61 samples from the two states yield a pole at 100.9°E, 68.6°N that, 

when combined with Pennsylvania sites, yields 101.6°E, 65.4°N. 

Stratigraphic and age considerations when combined with these 

results indicate that the basins did not subside simultaneously. 

Evidence suggests that continental separation (Europe - N. America) 

had not begun by the Middle Jurassic. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Regional (Culpeper Basin, Gettysburg Basin, Maryland; 

Hartford Basin, Connecticut) 

MAPS: Mise: sample locations 

DATA: Plots: pole positions 
1207 A 

Page 402 

SMITH, W.A., AND HARE, J.C., 1983, Paleomagnetic results from northsouth and northwest trending diabase dikes from the Piedmont of North 

Carolina: Geological Society of America, Abstracts with Programs, v. 

15, p. 198. 

SUMMARY: Mean magnetization directions are: NW group (D=17.7°, I=18.9°), N 

group (D=13.4°, I=33.5°). The NW suite is the older of the two as 

dictated by the latitude of the site mean directions. A 20° rotation of the Piedmont is required to bring the observed VGP in coincidence with the N. American polar wander path. 

KEYWORDS: geophysics 

paleomagnetism 

GEOGRAPHIC AREA: North Carolina 

1208 p SMITHERINGALE, W.G., AND JENSEN, M.L., 1963, Sulfur isotopic composition of the Triassic igneous rocks of Eastern United States: Geochimica et Cosmochimica Acta, v. 27, p. 1183-1207. 

SUMMARY: Studies indicate late Triassic upper mantle sulfur was isotopically 

similar to meteoritic sulfur. Isotopic fractionation during crystallization of tholeiites results in S(34) enrichment in sulfides, 

and such enrichment may continue into hydrothermal stage sulfides. 

Mean values include: diabase (+0.1), differentiate (+5.5), Cornwall 

ore (+7), extrusives (-5). 

KEYWORDS: diabase 

geochemistry 

isotopes 

GEOGRAPHIC AREA: Regional 

1209 T SMITHERINGALE, WILLIAM GEORGE, 1964, The isotopic composition of 

sulfur in the Triassic igneous rocks of eastern United States: Ph.D. 

Thesis, Massachusetts Institute of Technology. 

KEYWORDS: diabase 

isotopes 

basalt 

geochemistry 

GEOGRAPHIC AREA: Regional 
1210 A 

Page 403 

SMOOT, JOSEPH P., AND KATZ, SAMUEL B., 1982, Comparison of modern 

playa mudflat fabrics to cycles in the Triassic Lockatong Formation of 

New Jersey: Geological Society of America, Abstracts with Programs, 

v. 14, p. 83. 

SUMMARY: Lockatong cycles (laminated black shale; mudcracked, thin-bedded 

mudstone; brecciated mudstone; massive mudstone with analcime and 

dolomite void fillings) are related to subaerial exposure and arid 

soil processes after lake shallowing (black shale). Such cycles are 

similar to those of the Mojave region of California and Nevada. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

1211 T SNIDER, F.G., 1975, Analysis of magnetic and chemical data from 

Mesozoic diabase dikes of the Appalachians, with implications for the 

presence of a Triassic hotspot in the Carolinas: M.S. Thesis, 

Wesleyan University, 61 p. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: Regional 

1212 P: SOHON, JULIAN A., 1951, Connecticut minerals: Connecticut Geology and 

Natura·l History Survey, Bulletin 77, 128 p. 

SUMMARY: A list of minerals and their descriptions are given with no precise 

localities or map. An extensive bibliography is provided. Of 

importance are the occurrences of copper, barite, and lead-zinc 

localities within the Hartford Mesozoic basin. 

KEYWORDS: bibliography 1 ead 

mineralogy zinc 

zeolites 

economic geology 

copper 

barite 

GEOGRAPHIC AREA: Hartford Basin., Connecticut 

1213 T SOLOYANIS, S.C., 1972, Upper Triassic fluviatile and lacustrine sediments, Turners Falls, Massachusetts: B.A. Honors Thesis, Department 

of Geology, Smith College, Northampton, Massachusetts, 86 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 
Page 404 

1214 p SOSMAN, R.B., AND MERWIN, H.E., 1913, Data on the intrusion temperature of the Palisade diabase: Washington Academy of Science, Journal, 

v. 3, p. 389-395. 

SUMMARY: Arkosic inclusions trapped in diabase prompted experimental melting 

studies which indicate that arkose would melt before diabase could 

flow (actual temperatures - diabase 1225°C, arkose 1150°C). This 

discrepancy may result from pressure and volatile components not 

considered in experimentation. Sample location and descriptions are 

given. 

KEYWORDS: diabase 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

1215 P : SPENCER, ARTHUR C., 1908, Magnetite deposits of the Cornwall-type in 

Pennsylvania: U.S. Geological Survey Bulletin 359, 102 p. 

SUMMARY: The geology and mine workings of a number of the magnetitechalcopyrite Cornwall-type deposits are described from Lebanon, 

Berks, and York Counties. The deposits are considered to be 

genetically related to large diabase intrusives that provided the 

mineralizing solutions that replaced adjacent limestone. 

KEYWORDS: economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

MAPS: Geol: Cornwall, Reading, Boyertown, and Dillsburg areas 

Mise: mine layouts 

1216 PM: STANLEY, ROLFS., AND CALDWELL, KATHERINE G., 1976, The bedrock 

geology of the Newtown Quadrangle: Connecticut Geology and Natural 

History Survey Quadrangle Report 33, 44 p. 

SUMMARY: The SW edge of the Pomperaug Basin is present in the NE corner of 

the quadrangle and includes the New Haven Arkose and a basalt unit. 

The contact with Paleozoic rocks to the west is covered by surficial 

deposits but is considered an angular unconformity. Several faults 

enter the basin from the west and offset the western basin margin. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut, New Haven Co., Newtown Quad. 

MAPS: Geol: [1:24,000] (bedrock) 
Page 405 

1217 PM: STANLEY, ROLFES., 1964, The bedrock geology of the Collinsville Quadrangle: Connecticut Geological and Natural History Survey, Quadrangle 

Report 16, 99 p. 

SUMMARY: Triassic New Haven Arkose and diabase lie in the eastern edge of the 

quadrangle along the west margin of the basin. The Cherry Brook 

outlier lies within the crystalline highlands, is fault bounded on 

its east side, but in unconformable contact on its west side. The 

west margin of the Hartford Basin is marked by a normal fault. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Hartford Co., Collinsville 

Quad. 

MAPS: Geol: [1:24,000] 

1218 T STARQUIST, V.L., 1943, The stratigraphy and structural geology of the 

central portion of the Mount Tom and East Mountain ridges: M.A. 

Thesis, Department of Geology, Smith College, Northampton, Massachusetts, 49 p. 

KEYWORDS: basalt 

stratigraphy 

structure 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

1219 T STEEL, WARREN G., 1949, Dikes of the Durham Triassic Basin near Chapel Hill, North Carolina: M.S. Thesis, University of North Carolina, 25 

p. 

KEYWORDS: general geology 

diabase 

GEOGRAPHIC AREA: Durham Basin, North Carolina 
1220 A 

Page 406 

STEELE, KENNETH F., 1970, Chemical differentiation of a Triassic {?) 

diabase dike, Pageland, South Carolina: Geological Society of 

America, Abstracts with Programs, v. 2, p. 241. 

SUMMARY: Alkali elements and Si, Ti, and Fe increase toward the center of the 

1000-foot wide dike, while the transition metals and Ca, Mg, and Al 

decrease. Crystal field energy controls the behavior of the transition metals, and Cr/Ni ratios best indicate differentiation. The 

magma underwent normal differentiation, resulting in a felsic 

center. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: South Carolina 

1221 T STEELE, KENNETH F., 1971, Chemical variations parallel and perpendicular to strike in two Mesozoic dolerite dikes, North Carolina and 

South Carolina: Ph.D. Thesis, University of North Carolina, 206 p. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: North Carolina, South Carolina 

1222 p STEELE, KENNETH F., AND RAGLAND, PAUL C., 1976, Model for the closedsystem fractionation of a dike formed by two pulses of dolerite magma: 

Contributions to Mineralogy and Petrology, v. 57, p. 305-316. 

SUMMARY: Element concentrations across the dike are symmetrical about its 

center with subsidiary inflections due to mixing of two magma pulses 

of similar composition that have undergone closed-system crystal 

fractionation. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: South Carolina 

DATA: Chern. (type of data): major oxide, trace; profiles across dike 
1223 F 

Page 407 

STEVENS, G.R., AND COLWELL, J.A., 1980, Triassic volcanism and 

structure, northern Bay of Fundy region: Geological Association of 

Canada and Mineralogical Association of Canada Fieldtrip Guidebook, 40 

p. 

SUMMARY: Two contrasting exposures of Mesozoic basalt are examined. The 

first exposure (uppermost flows) were emplaced under static 

.conditions. The second exposure includes flows, dikes, and 

agglomerates emplaced during active tectonism along a major fault 

zone. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

1224 p STEVENS, NELSON P., 1938, Two analyses of trap rock from the Holyoke 

Range in Massachusetts: American Journal of Science, 5th Series, v. 

36, p. 150-154. 

SUMMARY: Chemical analysis and thin section study of diabase from the main 

sheet and a cross-cutting dike indicate that they 11 are genetically 

related .. with the main sheet more 11 Salic 11 than the dike. Analytical 

procedure is outlined. 

KEYWORDS: geochemistry 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

DATA: Chern. (type of data): major oxide 

Photos: photomicrographs 

1225 T: STEVENS, R.L., 1977, Sedimentology of the Sugarloaf Arkose, Deerfield 

Basin, Massachusetts: M.S. Thesis, University of Massachusetts, 84 p. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 
1226 p 

Page 408 

STEVENS, R.L., AND HUBERT, JOHN F., 1980, Alluvial fans, braided 

rivers, and lakes in a fault-bounded semiarid valley: Sugarloaf Arkose (Late Triassic-Early Jurassic), Newark Supergroup, Deerfield 

Basin, Massachusetts: Northeastern Geology, v. 2, p. 100-117. 

SUMMARY: The Sugarloaf Arkose (2000 meters) was deposited by four alluvial 

fan systems. Six depositional facies - braided channel, floodplain, 

flood event, scour and fill, channel migration, and debris floware described and elucidate river-channel geometry and processes. Pyritic and dolomitic gray units correspond to an Early Jurassic 

alkaline lake period. The alluvial fan distribution, paleocurrents, 

and truncated map contours (clast size, cross beds) favor a 11 broadterrane11 hypothesis. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Section: columnar (4) 

Mise: Sugarloaf Arkose outcrops; clast size; paleocurrents; crossbed set thickness; paleogeography 

DATA: Photos: outcrops 

1227 A 

Plots: paleocurrents 

STEVENSON, I.M., 1960, New occurrences of Triassic sedimentary rocks 

in Chedabucto Bay area, Nova Scotia: Geological Society of America, 

Bulletin, v. 71, p. 1807-1808. 

SUMMARY: Several outliers of Triassic conglomerate, sandstone, and siltstone 

occur 85 miles NE of the Minas Basin Triassic area. Fossil evidence 

supports the Triassic age. Triassic sedimentation was more widely 

distributed in this area than previously inferred. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Maritime Province, Nova Scotia, Canada 

MAPS: Geol: sketch 
1228 p 

Page 409 

STEVENSON, R.E., 1948, Pigmentation of black Triassic argillite of 

Bucks County, Pennsylvania: Pennsylvania Academy of Science, Proceedings, v. 22, p. 131-134. 

SUMMARY: Analysis of six samples of black Lockatong argillite indicate ·that 

the color is due to ferrous sulfide and disulfide minerals as well 

as free carbon and hydrocarbon. A decrease in carbon content adjacent to diabase indicates the presence of hydrocarbons vaporized by 

the thermal metamorphism. (Qualitative chemical analysis was 

employed.) 

KEYWORDS: mineralogy 

sediments 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co. 

1229 p STEWART, DAVID M., BALLARD, J.A., AND BLACK, WILLIAM W., 1973, A 

seismic estimate of depth of Triassic Durham Basin, North Carolina: 

Southeastern Geology, v. 15, p. 93-103. 

SUMMARY: Seismic depth to basement calculations, based on interval velocities 

of Triassic rocks from other basins, indicate the basin is 6000+500 

feet deep, that east-dipping beds steepen with depth from 20° to 30°, 

the basin floor is flat, and 50- to 200-foot thick sills may occur. 

KEYWORDS: geophysics 

seismic profiles 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

1230 A STODDARD, EDWARD F., 1983, A compositionally bimodal, alkali-rich 

suite of Early Mesozoic dikes, eastern North Carolina Piedmont: 

Geological Society of America, Abstracts with Programs, v. 15, p. 698. 

SUMMARY: A NW-trending suite of dikes of assumed early Mesozoic age associated with Triassic olivine diabase dikes occurs in the NE Piedmont 

of N.C. and is dominated by a rhyolite porphyry group with subordinate ferrobasalt and K-rich andesite. Mineralogy is outlined. 

Whole-rock analyses reveal high Fe/Mg, K/Na, and Rb/Sr and enrichment in incompatible elements. This distinct suite may have originated from a rift-related alkalic magma of from differentiation and 

contamination of a tholeiitic magma. 

KEYWORDS: geochemistry 

diabase 

petrology 

GEOGRAPHIC AREA: North Carolina 
Page 410 

1231 PM: STONE, R.W., 1910, Coal on Dan River, North Carolina: U.S. Geological 

Survey Bulletin 471, p. 137-169. 

SUMMARY: This is a detailed description of the coal and carbonaceous shale 

sequences that occur along the eastern side of the basin in a narrow 

belt. No commercially valuable coal occurs with semianthracite beds 

at Walnut Cove and Leaksville being only a few inches thick. 

KEYWORDS: economic geology 

coal 

general geology 

GEOGRAPHIC AREA: Dan River basin, North Carolina 

MAPS: Geol: [1:62,500] and other sketches 

Section: measured outcrop sections 

1232 PM: STONE, R.W., 1914, Coal on Dan River, North Carolina: in, Pratt, 

J.H., North Carolina Geological and Economic Survey, EConomic Paper 

34, p. 115-149. 

SUMMARY: The general stratigraphy of the basin consists of lower conglomerates, overlain by a thin coal-bearing shale horizon, which is 

overlain by sandstone and finer conglomerate. Detailed descriptions 

of the coal mines, the coal seams, and the chemical quality of the 

coal are presented. The very thin and discontinuous semianthracite 

coal seams at Walnut Cove and Leaksville demonstrate that the basin 

is an economically unimportant source of coal. 

KEYWORDS: economic geology 

coal 

general geology 

paleontology 

GEOGRAPHIC AREA: Dan River Basin, North Carolina 

MAPS: Geol: [1:62,500] 

Section: columnar (Walnut Cover, N.C.) 

Mise: mine location sketches 

DATA: Chern. (type of data): coal 
Page 411 

1233 p STONE, R.W., 1939, The minerals of Pennsylvania- non-metallic 

minerals: Pennsylvia Geological Survey (4th), Bulletin M 18-C, 49 p. 

SUMMARY: A barite vein occurring 3/4 mi. SE of Buckmanville consists of a 

breccia of diabase with a quartz and barite matrix. Barite also 

occurs near Logan Spring and at the Hinter Quarry in Plymouth Township (no details provided). (A more detailed description of the 

Buckmanville vein may be obtained from B. Darton et al., 1909, 

Trenton Folio.) 

KEYWORDS: economic geology 

barite 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks County 

1234 p STORM, THOMAS W., AND HOLLAND, HEINRICH D., 1957, The distribution of 

nickel in the Lambertville diabase: Geochimica et Cosmochimica Acta, 

v. 11, p. 335-347. 

SUMMARY: Nickel contents of pyroxene and magnetite increase with depth in the 

sill from 10 to 150 and 100 to 380 ppm, respectively. Nickel 

content of plagioclase is 10 ppm at the base of the sill and also 

decreases with height. Results correlate with the Nipissing Sill, 

Ontario, and the Skaergaard intrusion, Greenland, and suggest that 

nickel mineralization is not dependent upon Ni concentration in the 

initial magma. 

KEYWORDS: geochemistry 

diabase 

economic geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hunterdon County 

MAPS: Geol: sketch 

DATA: Chern. (type of data): Ni in magnetite, pyroxene, and rock 

Plots: Ni variation w/depth 
Page 412 

1235 p STOSE, A.I.J., AND STOSE, G.W., 1946, Geology of Carroll and Frederick 

Counties: in, The Physical Features of Carroll County and Frederick 

County, MarYfand Department of Geology, Mines and Water Resources, 303 

p. 

SUMMARY: The geology of the lower New Oxford and upper Gettysburg shale 

formation is described. The former consists of a basal limestone or 

quartz conglomerate and upper shale and arkose, and the latter consists of red shale. Beds dip west toward the border fault. Sediment provenance, paleontology, structure, and diabase dike occurrences are further discussed. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland 

1236 PM: STOSE, ANNA JONAS, AND STOSE, GEORGE W., 1944, Geology of the HanoverYork District, Pennsylvania: U.S. Geological Survey Professional 

Paper 204, 84 p. 

SUMMARY: The SE edge of the basin consists of the lower New Oxford Fm. (basal 

conglomerate, arkosic sandstone) and the upper Gettysburg Fm. ·(red 

shale, Conewago conglomerate member in center). Diabase dikes 

crosscutting Triassic and pre-Triassic rocks are described. The New 

Oxford Fm. rests unconformably on Paleozoic rocks to the SE. The 

Triassic rocks dip 30° to the NW. 

KEYWORDS: general geology 

structure 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Adams Co., 

Abbotstown Quad., West York Quad., Hanover Quad. 

MAPS: Geol: [1:62,500] 
Page 413 

1237 PM: STOSE, G.W., AND BASCOM, F., 1919, Fairfield-Gettysburg folio, 

Pennsylvania: U.S. Geological Survey, Atlas of the U.S., Folio 225, 

22 p. 

SUMMARY: The structure and general geology of the Gettysburg and New Oxford 

Formations, the fanglomerates, and the diabase sills and dikes are 

outlined. A basalt flow is described from a location .5 mi S of 

Bendersville. Garnet skarns occur in Cambro-Ordovician limestone 

adjacent to diabase in the Fairfield area. Cornwall-type magnetite 

deposits occur at the base of Fox Hill near Cashtown. 

KEYWORDS: general geology 

economic geology 

copper 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Adams County, Iron Springs 

Quad., Fairfield Quad., Gettysburg Quad., McSherrystown 

Quad., Hampton Quad., Biglerville Quad., Arendtsville Quad. 

MAPS: Geol: [1:62,500] 

Section: stratigraphic 

1238 P STOSE, GEORGE W., 1919, Glauberite crystal cavities in the Triassic 

rocks in the vicinity of Gettysburg, Pa.: American Mineralogist, v. 

4, p. 1-4. 

SUMMARY: Crystal casts in sandstone altered by diabase resemble glauberite 

morphologically and indicate arid, playa conditions at times during 

deposition of the Triassic rocks. 

KEYWORDS: hornfels 

sediments 

mineralogy 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Adams Co. 

MAPS: Mise: localities 

DATA: Photos: specimens 
Page 414 

1239 p STOSE, GEORGE W., 1924, New type of structure in the Appalachians: 

Geological Society of America, Bulletin, v. 35, p. 465-480. 

SUMMARY: Studies of the structure of the Ephrata-Hahnstown graben, within the 

Triassic sediments, indicate that the graben faulting has been 

superimposed upon earlier late-Paleozoic synclinal folding of 

Cambro-Ordovician units. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

MAPS: Geol: sketches 

Section: cross sections 

1240 PM: STOSE, GEORGE W., 1932, Geology and mineral resources of Adams County, 

Pennsylvania: Pennsylvania Geological Survey, 4th Series, Bulletin 

C1, 153 p. 

SUMMARY: The Triassic consists of the lower New Oxford Fm. (sandstone, conglomerate, and shale) and the upper Gettysburg Fm. (shale) which 

occupies the western area of the basin and contains a white sandstone member. Limestone and quartzite conglomerates occupy areas 

along the western border fault. A large intrabasin graben is 

inferred to occur. Garnet-bearing skarns, copper mineralization, 

and magnetite deposits occur in association with diabase. 

KEYWORDS: general geology 

economic geology 

copper 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Adams County 

MAPS: Geol: [1 inch = 2 miles] 

Section: composite sections 
Page 415 

1241 p STOSE, GEORGE W., 1949, The fault at the west edge of the Triassic in 

Southern Pennsylvania: American Journal of Science, v. 247, p. 531-

536. 

SUMMARY: The occurrence of Cambrian limestone floor toward the west edge of 

the basin where the thickest Triassic sediments would be expected 

indicates that a fault occurs within the basin, resulting in a horst 

along the western margin. A belt of diabase intrusives within the 

basin is inferred to occur along this fault. 

KEYWORDS: general geology 

st ruc:tu re 

faults 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

MAPS: Geol: sketches 

1242 M: STOSE, GEORGE W., 1953, Geology of the Carlisle (15 1 } Quadrangle, 

Pennsylvania: u.s. Geological Survey, Map GQ-28. 

KEYWORDS: general geology 

GEOGRAPHIC AREA:: Gettysburg Basin, Pennsylvania, Adams Co., York Co., Mt. 

Holly Springs Quad., Dillsburg Quad., Mechanicsburg Quad. 

MAPS: Geol: [1:62,500] 

1243 p STOSE, GEORGE W., AND GLASS, JEWELL J., 1938, Garnet crystals in 

cavities in metamorphosed Triassic conglomerate in York County, 

Pennsy'lvania:· American Mineralogist, v. 23, p. 430-435. 

SUMMARY: Andradite garnet occurs in the Heidlersburg member of the Gettysburg 

Formation, replacing limestone-rich conglomerate adjacent to a diabase intrusion near Frogtown along the west shore of the Susquehanna 

River just south of the basin margin. The garnet•s optical properties are discussed. 

KEYWORDS: metamorphism 

mineralogy 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York County, Steelton Quad. 

MAPS: Mise: locations 

DATA: Photos: specimen 
Page 416 

1244 A : STOSE, GEORGE W., AND JONAS, ANNA I., 1925, Triassic rocks northwest 

of Lebanon, Pennsylvania: Pan-American Geologist, v. 43, p. 368-369. 

SUMMARY: An area of southward-dipping Triassic shales and sandstones lies 

upon Ordovician shales 10 miles NW of the main Triassic belt near 

Lebanon. A basalt flow also occurs, and the beds are truncated 

against a southern normal fault. (No specific location is given - the area in question corresponds to the Martinsburg Fm. as indicated 

by the Pennsylvania State Geologic Map.) 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lebanon County 

1245 A STOSE, GEORGE W., AND JONAS, ANNA I., 1925, Triassic sedimentary rocks 

and basaltic flow northwest of Lebanon, Pennsylvania: Geological 

Society of America, Bulletin, v. 36, p. 160-161. 

SUMMARY: A four-mile wide area of greenish-yellow arkose, red shales, and an 

interbedded basalt flow occur 10 miles NW of the main Triassic belt 

near Lebanon. The beds dip gently south and terminate against a 

border fault. The rocks were originally considered Ordovician, but 

more closely resemble Triassic strata. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lebanon County 

1246 PM: STOSE, GEORGE W., AND JONAS, ANNA I., 1933, Geology and mineral 

resources of the Middletown Quadrangle, Pennsylvania: U.S. Geological 

Survey Bulletin 840, 86 p. 

SUMMARY: The basin in this area consists of an eastern New Oxford Fm. 

(arkose, lower quartzose and limestone conglomerates unconformable 

on pre-Triassic rocks) and a western Gettysburg Fm. (sandstone and 

shale with fanglomerates adjacent to western margin fault). The 

diabase intrusives and their contact metamorphic effects are 

described. 

KEYWORDS: general geology 

economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co., Lancaster Co., 

Lebanon Co., Dauphin Co., Middleton Quad., Elizabethtown 

Quad., York Haven Quad., Columbia West Quad. 

MAPS: Geol: [1:62,500] 

DATA: Photos: outcrops 
Page 417 

1247 PM: STOSE, GEORGE W., AND JONAS, ANNA I., 1939, Geology and mineral 

resources of York County, Pennsylvania: Pennsylvania Geological 

Survey, 4th Series, Bulletin C67, 199 p. 

SUMMARY: The stratigraphy, paleontology, and composition of the lower arkosic 

New Oxford Fm. and the upper shaley Gettysburg Fm. are described, 

the latter consisting of two conglomerate members and upper fanglomerates adjacent to the western border faults. The petrography and 

nature of diabase intrusives, and the occurrence of copper and magnetite deposits adjacent to diabase are outlined. 

KEYWORDS: general geology 

paleontology 

economic geology 

copper 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York Co. 

MAPS: Geol: no scale given 

Section: outcrop sections 

DATA: Photos: fossils 

1248 p STOSE, GEORGE W., AND LEWIS, J. VOLNEY, 1916, Triassic igneous rocks 

in the vicinity of Gettysburg, Pennsylvania: Geological Society of 

America, Bulletin, v. 27, p. 623-644. 

SUMMARY: The petrography and composition of the diabase is discussed in 

detail, and 9 varieties are recognized: normal diabase, anortho~ 

site, quartz diabase, micropegmatite, aplite, hypersthene diabase, 

olivine diabase, basalt, and olivine basalt. 

KEYWORDS: diabase 

mineralogy 

petrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Adams County 

DATA: Chern. (type of data): major oxide (rock, feldspar) 

1249 M STOVER, C.W., BARNHARD, L.M., REAGOR, B.G., AND ALGERMISSEN, S.T., 

1980, Seismicity map of the state of New Jersey: U.S. Geological Survey, Map MF-1260. 

KEYWORDS: geophysics 

faults 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: seismicity [1:100,000] 
Page 418 

1250 p STRONG, D.F., AND HARRIS, A., 1974, The petrology of Mesozoic 

alkaline intrusives of Central Newfoundland: Canadial Journal of 

Earth Sciences, v. 11, p. 1208-1219. 

SUMMARY: A gabbroic stock surrounded radially by lamprophyre dikes along the 

north-central coast is interpreted to be Jurassic to Cretaceous in 

age and the result of Atlantic rifting. The suite resulted from 

high-pressure eclogite fractionation followed by low-pressure 

induced volatile build-up. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: Maritime Province, Newfoundland, Canada 

MAPS: Mise: location 

DATA: Chern. (type of data): major oxide, trace 

Plots: variations; A - F - M 

1251 P STUCKEY, J.L., 1965, North Carolina: its geology and mineral 

resources: North Carolina Department of Conservation and Development, 

Raleigh, N.C., 550 p. 

SUMMARY: A short summary of Triassic stratigraphy and structure in the Deep 

River and Dan River Basins is given (p. 126-141). A discussion of 

the coal resources of these basins is given (p. 508-516). 

KEYWORDS: stratigraphy 

economic geology 

coal 

GEOGRAPHIC AREA: Deep River Basin, Dan River Basin, North Carolina 

1252 A STURM, E., 1978, The Newark Group of New Jersey: cyclic deposits and 

the crystallinity of illite: Tenth International Congress on Sedimentology, Jerusalem, Abstracts, v. 2, p. 649. 

SUMMARY: Clay-size fractions of red siltstone and shale (no localities given) 

consist of illite, with only minor kaolinite or chlorite-sericite. 

Illite is dioctahedral with ferric iron occupying octahedral sites. 

Well-crystallized illite is restricted to sediments removed from the 

basin's chemical environment by rapid burial in impervious, clayrich sediments. Degree of illite crystallinity is related to length of exposure. Illite 11 Structural perfection .. is a "good indicator of 

the cyclic nature of these deposits." 

KEYWORDS: sediments 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 419 

1253 T : STURM, EDWARD, 1956, Mineralogy and petrology of the Newark Group 

sediments of New Jersey: Ph.D. Thesis, Rutgers University. 

KEYWORDS: sedimentation 

sediments 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

1254 T SUGARMAN, PETER J., 1981, The geological interpretation of gravity 

anomalies in the vicinity of Raritan Bay, New Jersey and New York: 

M.S. Thesis, University of Delaware. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

1255 T SULLIVAN, J.G., 1972, Chemistry and structural state of plagioclase 

feldspars from a differentiated dolerite dike (North Carolina): M.S. 

Thesis, University of North Carolina. 

KEYWORDS: diabase 

petrology 

mineralogy 

GEOGRAPHIC AREA: North Carolina 

1256 p SUMNER, JOHN RANDOLF, 1977, Geophysical investigation of the structural framework of the Newark-Gettysburg Triassic Basin, Pennsylvania: 

Geological Society of America, Bulletin, v. 88, p. 935-942. 

SUMMARY: Gravity investigation reveals that the SE basin margin is not 

entirely a simple on-lap unconformity, but is represented by step 

faults that often coincide with the margin or otherwise occur just inside the margin. Regional gravity characteristics of the sedimints and diabase entrusives are discussed. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

MAPS: Section: 

Geophys: 

gravity profiles 

regional gravity 
Page 420 

1257 p SUNDERMAN, HARVEY COFER, 1958, Geology and mineral resources of the 

Scottsville Triassic Basin, Virginia: Virginia Division of Mineral 

Resources, Open-File Report, 58 p. 

SUMMARY: The stratigraphy; structure, and metamorphism of the basin are 

outlined. The Ballinger member fanglomerate; Howardsville member 

metadiabase intrusives, pyroclastics, and metasediments; and the 

Hardware member fanglomerate constitute the Totier Fm. from oldest 

to youngest, respectively. Hydrothermal activity along the western 

border fault zone is responsible for barite mineralization and 

alteration of diabase dikes and sills. Beds dip toward the western 

fault, which was active before, during, and after Triassic 

deposition. A less developed fault zone is present along the 

eastern boundary. 

KEYWORDS: general geology 

structure 

diabase 

mineralogy 

economic geology 

barite 

GEOGRAPHIC AREA: Scottsville Basin, Virginia 

MAPS: Geol: bar scale only 

Section: cross section; type sections 

DATA: Photos: outcrop 

1258 p SURLYK, F., AND CLEMMENSEN, L.B., 1983, Rift propagation and eustacy 

as controlling factors during Jurassic inshore and shelf sedimentation 

in northern East Greenland: Sedimentary Geology, v. 34, p. 119-143. 

SUMMARY: The sedimentary structures, stratigraphy, and depositional environments of the Middle and Late Jurassic rift sedimentation are discussed and consist of (from base) the Pelion shallow sandy embayment 

facies, the Jakobsstigen inner shelf heterolithic facies, and the 

Bernbjerg outer shelf mudstone facies. Sedimentation was influenced 

by fluvial, tidal, and storm-related processes and represents an 

overall fining upward sequence. Trace fossils are used to elucidate 

the stratigraphy. 

KEYWORDS: sedimentation 

general geology 

GEOGRAPHIC AREA: Greenland 

MAPS: Geol: sketches 

Section: stratigraphic 

DATA: Photos: outcrops 
Page 421 

1259 T : SUTPHEN, C.F., 1975, The petrology of a Triassic diabase intrusion 

near Frederick, Maryland: M.S. Thesis, Temple University. 

KEYWORDS: petrology 

diabase 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland 

1260 A SUTPHEN, C.F., AND.ULMER, G.C., 1975, A classic study of a not so 

classic dike: American Geophysical Union, Transactions, v. 56, p. 

471. 

SUMMARY: An 80-meter wide, 40-km. long dike near Frederick dips 85°E and has 

a calc-silicate halo on its east side and a 11 faulted-folded unconformable .. contact on its west side. The dike intrudes CambroOrdovician limestone and is of the Rossville-type. From west to 

east the dike: decreases in grain size, shows a 7% orthopyroxene 

decrease, and has maximum F02 and ferric/ferrous ratios to the east. 

These data indicate the diabase was a sill, now deformed to nearly 

vertical. 

KEYWORDS: petrology 

geochemistry 

diabase 

GEOGRAPHIC AREA: Frederick County, Maryland 

1261 A SUTTER, JOHN F., AND ARTH, JOSEPH G., 1983, 40Arj39Ar age spectrum 

dating and strontium isotope geochemistry of diabase sills from the 

Culpeper Basin, Virginia: Geological Society of America, Abstracts 

with Programs, v. 15, p. 92. 

SUMMARY: Six samples of diabase between Rapidan and Leesburg yield a mean age 

of 197+4 m.y. Paleomagnetics suggests a pole position corre- s~onding to the North America polar-wander path at 200 m.y. 87sr/ 

86sr values (0.7060 to 0.7066) and an Rb/Sr ratio of 0.10 to 0.13 

are consistent with other Mesozoic diabases and indicate continental 

tholeiitic affinity, as opposed to mid-ocean tholeiites. 

KEYWORDS: diabase 

petrology 

isotopes 

radiometric age 

Ar/Ar dating 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
1262 p 

Page 422 

SUTTER, JOHN F., AND SMITH, TIMOTHY E., 1979, 40Arj39Ar ages of 

diabase intrusives from Newark trend basins in Connecticut and Maryland: initiation of Central Atlantic rifting: American Journal of 

Science, v. 279, p. 808-831. 

SUMMARY: Ar/Ar and K/Ar dating on sills and dikes in Connecticut and Maryland 

suggest that data scatter may be due to excess 40Ar. The Mt. 

Carmel Sill (Conn.) yields a 191 m.y. age, in agreement with the 

group 1 pole position of Smith and Noltimier (1979). Dikes from 

Conn. and Md. yield 175 m.y. and correspond to group 2 (Early to 

Middle Jurassic). It is suggested that the latter age group 

indicates that rifting began no later than 175 m.y. 

KEYWORDS: radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland, Hartford Basin, Connecticut 

MAPS: Mise: sample locations 

DATA: Chern. (type of data): 40Ar;36Ar, 39ArJ36Ar, K/Ar 

1263 P : SWANSON, MARK T., 1982, Preliminary model for an early transform 

history in Central Atlantic rifting: Geology, v. 10, p. 317-320. 

SUMMARY: A model is ·developed based upon pre-existing structural grain and 

rotation about a Sahara, Africa, pole: (1) Late Permian to Middle 

Triassic dextral shear-thermal arch, S. Appalachian graben sedimentation; (2) NW-SE extension in Late Triassic to Early Jurassicgraben sedimentation, 190 m.y. basalt event; (3) left lateral sheargraben faults/folds, 175 m.y. dike event (fan-shaped), (4) drift. 

KEYWORDS: tectonics 

GEOGRAPHIC AREA: Regional 

1264 T SWE, W., 1963, Structural and stratigraphic relationships along the 

northwestern border of the Wadesboro Basin of North Carolina: M.S. 

Thesis, University of North Carolina, 64 p. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Wadesboro Basin, North Carolina 
1265 A 

Page 423 

SWE, WIN, AND WHEELER, WALTER H., 1964, Structural and stratigraphic 

relationships along the Northwestern border of the Wadesboro Triassic 

Basin of North Carolina: Geological Society of America, Special Paper 

76, p. 259. 

SUMMARY: The border is considered the 11most complex .. of the Newark troughs 

and consists of numerous NE-trending faults of differing movements 

that have developed many horsts and grabens. The horsts are now 

represented by pre-Triassic rocks, and the grabens by fanglomerates, 

the only traceable unit that occurs along the entire NW margin. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Wadesboro Basin, North Carolina 

1266 p SWIFT, DONALD J.P., AND LYALL, ANIL K., 1968, Origin of the Bay of 

Fundy, an interpretation from sub-bottom profiles: Marine Geology, v. 

6, p. 331-343. 

SUMMARY: The structure and geologic features of the Bay of Fundy, floored 

by Triassic rocks, are outlined, and the bay is considered to be of 

Pleistocene glacial origin modifying an original Mesozoic subaerial 

drainage system. 

KEYWORDS: geophysics 

seismic profiles 

GEOGRAPHIC AREA: Maritime 

MAPS: Geol: sketches 

Geophys: seismic profiles 

1267 P SWIFT, DONALD J.P., AND LYALL, ANIL K., 1968, Reconnaissance of 

bedrock geology by sub-bottom profiler, Bay of Fundy: Geological 

Society of America, Bulletin, v. 79, p. 639-646. 

SUMMARY: The Acadian Triassic Basin, largely in the position of the Bay of 

Fundy, occupies the bay floor in the form of a broad syncline with a 

zone of normal faults along the NW margin. The North Mountain 

Basalt defines the NE limb. 

KEYWORDS: geophysics 

seismic profiles 

structure 

GEOGRAPHIC AREA: Maritime, Nova Scotia 

MAPS: Geol: sketches 

Section: seismic profiles 

DATA: Photos: outcrops 
Page 424 

T 

1268 T TANGER, J.C., IV, 1976, Structure and petrography of the Black Rock 

Ridge area, Holyoke Range, Massachusetts: B.A. Thesis, Amherst 

College, 96 p. 

KEYWORDS: structure 

mineralogy 

petrology 

basalt 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

1269 A TAYLOR, C.A., JR., AND BUTLER, J.R., 1982, Geology and gravity of the 

northern end of the Charlotte belt, and Davie County Mesozoic basin, 

central North Carolina Piedmont: Geological Society of America, 

Abstracts with Programs, v. 14, p. 88-89. 

SUMMARY: A ductile shear zone that separates the Charlotte and Inner Piedmont 

Belts underlies the basin, whose movement is .. totally contained 

within the shear zone ... A negative gravity signature up to -12 

mgals characterizes the basin, and a -20 mgals zone defines the 

shear zone between the Charlotte and Inner Piedmont Belts. 

KEYWORDS: structure 

geophysics 

gravity 

GEOGRAPHIC AREA: Davie County Basin, North Carolina 

1270 PM: TAYLOR, LARRY E., AND ROYER, DENISE W., 1981, Summary groundwater 

resources of Adams County, Pennsylvania: Pennsylvania Geological 

Survey, 4th Series, Water Resource Report 52, 50 p. 

SUMMARY: Water chemistry, pH, hardness, well yield and depth data are 

provided for 130 wells in the Triassic rocks. The Gettysburg Fm. 

water is hard (171 mg/L), New Oxford Fm. water is hard with 25 

percent of water samples not meeting recommended iron and manganese 

limits, and diabase provides a poor aquifer. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, Adams County 

MAPS: Geol: [1:50,000] 

DATA: Chern. (type of data): water 
1271 A 

Page 425 

TESTA, STEPHEN M., 1983, Geochemistry of Mesozoic tholeiites from 

Liberia, Guyana and Surinam: Geological Society of America, Abstracts 

with Programs, v. 15, p. 91. 

SUMMARY: Diabase dikes in NW Liberia are 173-192 m.y. old quartz-normative 

tholeiites that intrude three geologic provinces and that show 

petrochemical differences among the provinces. Dikes in Guyana and 

Surinam are of two types: a coastal group lower in Si02 and MgO, 

and higher in Ti02, FeO, MnO, and P205 than those intruding the 

Guiana Shield to the west of the second group. These two types, 

respectively, compare to those in Liberia that intrude the Precambrian Pan African Province and the coastal Paleozoic Paynesville 

sandstone. 

KEYWORDS: diabase 

general geology 

petrology 

geochemistry 

GEOGRAPHIC AREA: Liberia, Guyana, Surinam, Africa, South America 

1272 A THAYER, P.A., ROBBINS, E.I., AND ZIEGLER, D.G., 1982, Hydrocarbon 

potential of the Dan River-Danville Triassic Basin, North Carolina and 

Virginia: Geological Society of America, Abstracts with Programs, v. 

14, p. 89. 

SUMMARY: Little hydrocarbon potential exists in the basin. Analyses of the 

Cow Branch Formation show .9% organic carbon, .06 mg/g free and 

residual hydrocarbons, and pyrolysis Tmax exceeding 400°C. The 

occurrence of wurtzite in sediments and of diabase intrusives 

indicates that the area was underlain by high heat flow that may 

have destroyed pre-existing hydrocarbons. 

KEYWORDS: economic geology 

oil 

coal 

GEOGRAPHIC AREA: Dan River Basin, Danville Basin, North Carolina, Virginia 

1273 T THAYER, PAUL A., 1967, Geology of the Dan River and Davie County 

Triassic Basins, North Carolina: Ph.D. Thesis, University of North 

Carolina, 195 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Dan River Basin, Davie County Basin, North Carolina 
Page 426 

1274 A THAYER, PAUL A., 1969, Depositional environments: Upper Triassic Dan 

River Group, North Carolina: Geological Society of America, Abstracts 

with Programs, v. 1, pt. 4, p. 81. 

SUMMARY: Four facies are recognized: (1) alluvial fan - along NW (faulted) 

and SE (unconformity) margins, gneiss and schist clasts, thick 

stratification; (2) fluvial -fining upward cycles, channel conglomeratic base grading up into fine grained, stratified sandstone 

and then mudstone; (3) lacustrine - central, dark shales, pyrite, 

ripple marks, subaerial features also; (4) swamp - black shale, 

coal, siderite. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Dan River Basin, North Carolina 

1275 P : THAYER, PAUL A., 1970, Geology of Davie County Triassic Basin, North 

Carolina: Southeastern Geology, v. 11, p. 187-198. 

SUMMARY: This basin is considered an erosional outlier of the Dan River Basin 

just to the NE. An alluvial fan, polymictic, rounded, poorly sorted 

conglomerate facies occurs in the western area along the faulted 

margin. Sandstones, mudstones, and siltstones occupy the remainder 

of the area and display a fining upward sequence from plagioclase 

arkose to mudstones. 

KEYWORDS: sedimentation 

general geology 

GEOGRAPHIC AREA: Davie County Basin, North Carolina 

MAPS: Geol: sketches 

DATA: Photos: outcrops 
Page 427 

1276 p THAYER, PAUL A., 1970, Stratigraphy and geology of Dan River Triassic 

Basin, North Carolina: Southeastern Geology, v. 12, p. 1-32. 

SUMMARY: The basin sediments are divided into three formations: a lower Pine 

Hall Fm. (conglomerate, sandstone, siltstone, east side of basin), 

medial Cow Branch Fm. (conformable on former, dark mudstones, coal, 

arkose, uniform bedding), and upper Stoneville Fm. (conformable on 

former, western margin conglomerate, siltstone). Environments are 

discussed and include a lacustrine (Cow Branch) component; the 

structural history is outlined and includes western margin faulting accompanying sedimentation. 

KEYWORDS: general geology 

stratigraphy 

sedimentation 

GEOGRAPHIC AREA: Dan River Basin, North Carolina 

MAPS: Geol: sketch map (no scale given) 

Section: measured (Stoneville and Cow Branch Fms.) 

DATA: Chern. (type of data): diabase mineral composition 

Plots: sediment petrography 

1277 A THAYER, PAUL A., 1971, Sedimentology of Dan River Group (Upper 

Triassic), North Carolina: Pennsylvania Academy of Science, Proceedings, v. 45, p. 196. 

SUMMARY: Deposition within the 225-km long rift valley consisted of alluvial 

fan, lacustrine, swamp, and fluvial systems. Sandstone compositions, controlled by source area - not tectonics - are immature 

arkoses and litharenites. Provenance was less than 25 miles as 

indicated by sediment immaturity, euhedral and subhedral heavy 

mineral suites (many unstable), and 1.5 meter boulders along the 

basin margins. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Dan River Basin, Danville Basin, North Carolina, Virginia 
1278 A 

Page 428 

THAYER, PAUL A., 1973, Geology of the southern and south-central part 

of Danville Triassic Basin, Virginia: Geological Society of America, 

Abstracts with Programs, v. 5, p. 444. 

SUMMARY: From base, the stratigraphy is: Pine Hall, Cow Branch, and Stoneville Fms., Pine Hall and Stoneville Fms. are alluvial fan and 

fluvial deposits composed of conglomerate, sandstone, and mudstone. 

The Cow Branch Fm. is a 5000-foot dark-colored lacustrine sequence. 

These fms. intertongue with the coarse fluvial and alluvial fan Dry 

Fork Fm. northeast of Judy Byrd Mtn. A silicified mylonite occurs 

along the NW border fault zone. The SE margin is an unconformity 

that has been locally faulted. 

KEYWORDS: general geology 

stratigraphy 

GEOGRAPHIC AREA: Danville Basin, Virginia 

1279 F THAYER, PAUL A., KIRSTEIN, DEWEY S., AND INGRAM, ROY L., 1970, Stratigraphy, sedimentology, and economic geology of Dan River Basin, 

North Carolina: Carolina Geological Society Field Trip Guidebook, 44 

p. 

SUMMARY: Field stops include: Pine Hall conglomerate and sandstone, eastern 

border fault, Cow Branch Fm. argillite, Stoneville Fm., and the Dry 

Fork Fm. A road log, sketch maps, discussions, outcrop sections, 

and drill logs from 3 cores within the Cow Branch Fm. are presented. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Dan River Basin, North Carolina 

1280 T THOMAS, M.A., 1983, Pyroxene chemistry in a tholeiitic lava flow: · effects of magma cooling rate and oxidation state: M.S. Thesis, 

University of Connecticut, Storrs, Connecticut, 90 p. 

KEYWORDS: basalt 

petrology 

mineralogy 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 
Page 429 

1281 A THOMAS, MARGARET A., 1983, Effect of cooling rate and magma oxidation 

state on pyroxene chemical trends in a tholeiitic basalt: Geological 

Society of America, Abstracts with Programs, v. 15, p. 122. 

SUMMARY: Clinopyroxene compositions reveal two types of augite and pigeonite 

fractionation trends (outlined). 

KEYWORDS: basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1282 PM: THOMPSON, H.D., 1959, The Palisades Ridge in Rockland County, New 

York: New York Academy of Science, Annals, v. 80, p. 1106-1125. 

SUMMARY: The geological relations and structure of the diabase are outlined 

in detail. It is shown that the diabase is disformable with the 

sediments; and, where concordant, faults are present, so that discordant relations do not represent feeder dikes. Notches in the 

ridge are the result of weathering along fault planes. 

KEYWORDS: general geology 

diabase 

structure 

GEOGRAPHIC AREA: Newark Basin, New York, Rockland County 

MAPS: Geo 1 : [ 1: 31 , 680] 

DATA: Photos: outcrops 

1283 A THOMSON, KEITH S., 1983, Scale structure and growth in fossil 

Semionotid fishes: Geological Society of America, Abstracts with 

Programs, v. 15, no. 3, p. 121. 

SUMMARY: Studies of the growth features of the family Semionotidae suggest 

that the fishes lived in 11 highly seasonal environments ... It is 

hoped that such data can be linked with information concerning depositional environment and ecology of the lake systems. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 
Page 430 

1284 p TILLING, R.I., GOTTFRIED, D., AND ROWE, J.J., 1973, Gold abundance in 

igneous rocks: bearing on gold mineralization: Economic Geology, v. 

68, p. 168-186. 

SUMMARY: The discussion includes gold analyses of diabase from North and 

South Carolina. Average values are 4.8 parts per billion. Specific 

localities are not provided. 

KEYWORDS: diabase 

geochemistry 

economic geology 

gold 

GEOGRAPHIC AREA: North Carolina, South Carolina 

1285 p TOENGER, A.L., AND OTHERS, 1952, Coal deposits in the Deep River 

Field, Chatham, Lee, and Moore Counties, North Carolina: U.S. Bureau 

of Mines, Bulletin 515, 41 p. 

SUMMARY: Coal reserves, petrography, and chemistry are discussed for the 

coal-bearing Cumnock Fm. Estimated reserves for coal beds over 14 

inches thick total 87.5 million short tons. Coal mining methods are 

suggested. The amount of anthraxylon, dull and bright attrital, and 

fusain varies both horizontally and vertically ~ithin beds. Igneous 

activity induced carbonization of the coal. Sulfur content ranges 

from 1.7 to 6.1%, due chiefly to pyrite. Mining history, lithologic 

description of mine shafts, and six drill hole logs are presented. 

KEYWORDS: economic geology 

coal 

general geology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

MAPS: Mise: mine and drill hole locations 

DATA: Chern. (type of data): coal 

Photos: coal photomicrographs 
Page 431 

1286 P : TOEWE, CLAYTON E., 1968, Magnetometer study in the Leesburg Quadrangle: Virginia Minerals, v. 14, p. 9-14. 

SUMMARY: A magnetic intensity map is presented for the quadrangle and 

illustrates the location of the western border fault and the 

approximate location of diabase and basalt units. The geology of 

the quadrangle is briefly outlined and consists of limestone and 

quartz conglomerate, sandstone, shale, pyroclastics, basalt, and 

diabase. 

KEYWORDS: geophysics 

magnetism 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co., Leesburg Quad. 

MAPS: Geophys: [1 11 = 1 mile] (100 gamma contour) 

1287 PM: TOEWE, E. CLAYTON, 1966, Geology of the Leesburg Quadrangle, Virginia: 

Virginia Division of Mineral Resources, Report of Investigations 11, 

52 p. 

SUMMARY: Adjacent to the western border fault, limestone conglomerates and 

basalt occur, while sandstone occupies the center of the area and 

shales occupy the eastern area. A diabase sill occupies much of the 

quadrangle and is bordered by zones of pyroclastics (now considered 

hornfels). The structure and descriptions of these units are 

discussed in the text. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co., Leesburg Quad. 

MAPS: Geol: [1:24,000] 

Section: stratigraphic (descriptions); diabase core logs 

DATA: Photos: outcrops 
1288 p 

Page 432 

TOEWE, E. CLAYTON, AND LEVAN, D.C., 1966, Anomalous magnetization in 

Triassic diabase near Leesburg, Loudoun County, Virginia: Geophysics, 

v. 31, p. 618-621. 

SUMMARY: A local, steep magnetic negative anomaly occurs on a diabase intrusive and is attributed to lightning. The 3000-gamma negative 

anomaly has gradients as steep as 800 gammas per foot across the 

20-foot circular area. 

KEYWORDS: diabase 

geophysics 

magnetism 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Loudoun Co., Leesburg Quad. 

MAPS: Geophys: magnetic 

1289 p TOMLINSON, W. HAROLD, 1942, Idiomorphic cordierite from Safe Harbor, 

Pennsylvania: American Mineralogist, v. 27, p. 646-649. 

SUMMARY: Idiomorphic cordierite in contact with orthoclase replaces mica due 

to the contact metamorphic effect of a 50-foot diabase dike. The 

mica occurs in a brecciated zone within the Cambrian Harpers Fm. 

Optical properties are outlined. The cordierite alters to pinnite 

or chlorophyllite. 

KEYWORDS: metamorphism 

hornfels 

mineralogy 

GEOGRAPHIC AREA: Lancaster County, Pennsylvania (location is not within the 

Triassic basins) 

DATA: Photos: photomicrograph 

1290 p TOMLINSON, W. HAROLD, 1945, Notes on the derivitives of the Triassic 

diabases of Pennsylvania: Economic Geology, v. 40, p. 526-536. 

SUMMARY: Petrographic study indicates that diabase results from basaltic and 

acidic magma mixing. Normal diabase results from up to a 6% acid 

component, and diabase pegmatite and albite pegmatite result from 

higher acid components. Iron ores of the Cornwall-type could be 

derived from the acid magma. 

KEYWORDS: diabase 

petrology 

economic geology 

iron 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

DATA: Photos: rock specimens 
Page 433 

1291 P : TOMLINSON, W. HAROLD, 1945, Occurrence of borosilicates in diabase at 

Lambertville, New Jersey: American Mineralogist, v. 30, p. 203-204. 

SUMMARY: The core of a pocket within pegmatitic diabase contains 30% axinite 

with associated datolite. Toward the core, augite is replaced by 

hornblende and then actinolite, and albite and calcite replace 

labradorite. Prehnite, tourmaline, actinolite, epidote, and axinite 

are present as an upward extension of the pocket. 

KEYWORDS: diabase 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hunterdon County 

DATA: Photos: photomicrograph 

1292 T TOOKER, E.W., 1949, Barite deposits of Bucks County: M.S. Thesis, 

Lehigh University. 

KEYWORDS: economic geology 

barite 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co. 

1293 p TOURTELOT, ELIZABETH B., AND VINE, JAMES D., 1976, Copper deposits in 

sedimentary and volcanic rocks: u.s. Geological Survey Professional 

Paper 907-C, p. C1-C34. 

SUMMARY: The geologic settings and theories of origin of copper deposits in 

sedimentary rocks are summarized. Some attention is given to sandstone-hosted copper deposits in Triassic rocks of the Connecticut 

Valley and southeastern Pennsylvania. Genesis of deposits by local 

reduction of oxidizing basin brines is hypothesized. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Regional 
Page 434 

1294 p TRUESDELL, D.B., AND ZOLLINGER, R.C., 1977, Preliminary study of the 

uranium potential of the Triassic-Jurassic Basin in Connecticut and 

Massachusetts: Bendix Field Engineering Corporation, Grand Junction 

Operations, Colorado, GJBX-68(77), 20 p. 

SUMMARY: Although the only known uranium occurrence is at East Granby, 

Connecticut (Newgate Prison Copper Mine), source rocks, host rocks, 

and physical and chemical traps indicate the area is favorable for 

the occurrence of uranium. Glacial till and other cover may inhibit 

detection of deposits. 

KEYWORDS: economic geology 

uranium 

lead 

zinc 

copper 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Connecticut, Massachusetts 

DATA: Chern. (type of data): gamma spectrometry, Zn, Pb, Cu 

1295 T TRYGSTAD, J.C., 1979, The petrology of Mesozoic dolerite dikes of 

southern New Hampshire and Maine: M.S. Thesis, University of North 

Carolina, 132 p. 

KEYWORDS: petrology 

diabase 

GEOGRAPHIC AREA: New England 

1296 P : TSUSUE, AKIO, 1964, Mineral aspects of the Grace Mine magnetite 

deposit: Pennsylvania Geological Survey, Bulletin M-49, 10 p. 

SUMMARY: Calcite-dolomite geothermometry and paragenesis indicate that 

calcite veins formed at 650°C in dolomite, and magnetite formed 

later at 500°C. 

KEYWORDS: metamorphism 

economic geology iron 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks Co., Morgantown Quad. 

MAPS: Geol: general map of area 

Section: general 

DATA: Chern. (type of data): calcite composition 
1297 p 

Page 435 

TUCKER, M.E., AND BERTON, M.J., 1982, Triassic environments, climates, 

and reptile evolution: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 40, p. 361-379. 

SUMMARY: It is suggested that competition was not the major factor in the 

quick radiation of the dinosaurs after the sudden extinction of the 

last mammal-like reptiles in the Norian. Increasing aridity brought 

about new floras which resulted in the proliferation of a new group 

of fauna, the dinosaurs. 

KEYWORDS: buried basins 

climate 

paleontology 

GEOGRAPHIC AREA: Regional 

1298 A TUCKER, ROBERT D., 1979, A new occurrence of Late (?) Triassic fossils 

in South-Central Virginia: Geological Society of America, Abstracts 

with Programs, v. 11, p. 216. 

SUMMARY: Remains of crustacea and plants (Coniferales, Cycadales) occur 

within black, pyritic shale and black, calcareous siltstone. A 

stratified lake model is considered in which anoxic bottom waters 

deposited pyritic siltstone and quiet, shallower water deposited 

overlying calcareous units. 

KEYWORDS: sedimentation 

paleontology 

GEOGRAPHIC AREA: Farmville Basin, Virginia 

1299 A TURNER, C.E., 1971, Acid differentiates in Triassic diabase, Bull Run 

Quarry, Loudoun County, Virginia: Virginia Journal of Science, v. 22, 

p. 124. 

SUMMARY: The Bull Run and Arlington Stone Quarries contain abundant pods and 

veins of acid differentiates, unlike the other seven quarries, with 

the latter displaying the greatest differentiation. Primary 

minerals are pyroxene, plagioclase, rutilated quartz, skeletal 

magnetite, and sphene. Hydrothermal solution alteration has 

introduced: quartz, amphibole, chlorite, prehnite, and calcite. 

KEYWORDS: diabase 

granophyre 

mineralogy 

petrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
Page 436 

1300 p TURNER-PETERSON, C.E., 1977, Uranium mineralization during early burial, Newark Basin, Pennsylvania-New Jersey: u.s. Geological Survey 

Circular 753, p. 3-4. 

SUMMARY: Uranium mineralization occurred in the euxinic, offshore, black 

mudstones of the Lockatong Fm. and the intertonguing near shore, 

gray sandstone of the Stockton Fm. along the southern basin area, 

the northern basin area lacking such gradual facies changes due to 

faulting. A basic, anaerobic, sulfidic, humic acid regime resulted 

in uranium precipitation in the Lockatong. Uranium in groundwater 

entering the lake reacted with the humic-acid and sulfidic fluids 

and was deposited in the Stockton sands. 

KEYWORDS: economic geology 

uranium 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 

1301 A TURNER-PETERSON, C.E., 1978, Genesis of tabular uranium bodies in 

Triassic and Jurassic basins in Eastern United States: U.S. Geological Survey Professional Paper 1100, p. 27. 

SUMMARY: Studies at the Newgate Prison Mine (Conn.) indicate that intercalation of nearshore, lacustrine, massive to laminated sandstone with 

offshore, lacustrine, black mudstone is the facies relationship 

favorable to uranium mineralization. Humic acid supplied by 

mudstone and uranium by groundwater results in early burial 

mineralization in sandstone. Such facies relationship is present in 

other Newark Basins. 

KEYWORDS: economic geology 

uranium 

GEOGRAPHIC AREA: Regional 
1302 p 

Page 437 

TURNER-PETERSON, C.F., 1980, Sedimentology and uranium mineralization 

in the Triassic-Jurassic Newark Basin, Pennsylvania and New Jersey: 

in, Turner-Peterson, C.E., ed., Uranium in Sedimentary Rocks, 

Application of the Facies Concept to Exploration, Society of 

Economic Paleontologists and Mineralogists, Rocky Mountain Section, 

Short Course Notes, p. 149-176. 

SUMMARY: A review of the sedimentologic facies and relationships of the 

Stockton (alluvial fan), Lockatong (offshore lacustrine), Brunswick 

(near-shore lacustrine), and Hammer Creek (fanglomerate) Formations 

is given. Syngenetic uranium fixed near the sediment-water interface occurs in the black mudstone Lockatong Fm. Uranium also occurs 

within the marginal lacustrine sandstones where interbedded with 

off-shore mudstones. Processes of uranium transport and precipitation involving humic substances are outlined. Mineral occurrences 

are noted. 

KEYWORDS: economic geology 

uranium 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 

MAPS: Geol: sketches 

Section: block diagrams 

1303 A TURNER-PETERSON, CHRISTINE E., 1982, Tectonism and sedimentation in 

the Triassic-Jurassic Newark Basin, Pennsylvania and New Jersey: 

Geological Society of America, Abstracts with Programs, v. 14, p. 92. 

SUMMARY: A fault-bounded NW border resulted in coarse, poorly sorted, debris 

flow fans that interfingered with low-energy medial basin lakes. 

Sedimentation along the non-faulted, gentle-sloping SE margin 

resulted in coalescing fans of well-sorted alluvium. Perennial, 

alkaline lacustrine deposition dominated, except for the basin 

margins, with sediments delivered from all directions. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 
1304 M 

Page 438 

u 

U.S. GEOLOGICAL SURVEY, 1969, Aeromagnetic map of the Broad Brook 

Quadrangle and part of the Manchester Quadrangles, Hartford and 

Tolland Counties, Connecticut: u.s. Geological Survey, Geophysical 

Investigations Map GP-647. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1305 M U.S. GEOLOGICAL SURVEY, 1969, Aeromagnetic map of the Ellington 

Quadrangle and part of the Rockville Quadrangle, Hartford and Tolland ~ounties, Connecticut: U.S. Geological Survey, Geophysical 

Investigations Map GP-648. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1306 M U.S. GEOLOGICAL SURVEY, 1969, Aeromagnetic map of the New Hartford 

Quadrangle and parts of the Collinsville and West Granville 

Quadrangles, Litchfield and Hartford Counties, Connecticut: U.S. 

Geological Survey, Map GP-644. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 
1307 M 

Page 439 

U.S. GEOLOGICAL SURVEY, 1969, Aeromagnetic map of the Tariffville 

Quadrangle, and parts of the Avon and Southwick Quadrangles, 

Connecticut and Massachusetts: u.s. Geological Survey, Map GP-645. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1308 M U.S. GEOLOGICAL SURVEY, 1969, Aeromagnetic map of the Windsor Locks 

Quadrangle and part of the Hartford North Quadrangle, Hartford County, 

Connecticut: U.S. Geological Survey, Map GP-646. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1309 M U.S. GEOLOGICAL SURVEY, 1970, Aeromagnetic map of the Shutesbury 

Quadrangle and part of the Millers Falls Quadrangle, Franklin and 

Hampshire Counties, Massachusetts: U.S. Geological Survey, Map 

GP-697. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geophys: aeromagnetism [1:24,000] 

1310 M U.S. GEOLOGICAL SURVEY, 1971, Aeromagnetic map of the Danville Quadrangle, Pittsylvania County, Virginia, and Caswell County, North 

Carolina: U.S. Geological Survey, Map GP-745. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Danville Basin, Virginia, Pittsylvania Co. 

MAPS: Geophys: aeromagnetism [1:62,500] 
1311 M 

Page 440 

U.S. GEOLOGICAL SURVEY, 1971, Aeromagnetic map of the Roxbury Quadrangle, Litchfield and New Haven Counties, Connecticut: U.S. Geological Survey, Map GP-819. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1312 M U.S. GEOLOGICAL SURVEY, 1971, Aeromagnetic map of the South Boston 

Quadrangle, Halifax County, Virginia, and Person and Granville 

Counties, North Carolina: U.S. Geological Survey, Map GP-747. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Scottsburg Basin, Virginia 

MAPS: Geophys: aeromagnetism [1:62,500] 

1313 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of part of the Branford 

Quadrangle, New Haven County, Connecticut: U.S. Geological Survey, Geophysical Investigations Map GP-874. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1314 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Bristol 

Quadrangle and part of the Collinsville Quadrangle, Hartford, New 

Haven, and Litchfield Counties, Connecticut: U.S. Geological Survey, Geophysical Investigations Map GP-845. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 441 

1315 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Woodbury 

Quadrangle, Litchfield and New Haven Counties, Connecticut: U.S. 

Geological Survey, Map GP-852. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1316 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Durham 

Quadrangle, Middlesex and New Haven Counties, Connecticut: U.S. 

Geological Survey, Geophysical Investigations Map GP-866. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1317 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the northern parts 

of the Durham North and Creedmoor Quadrangles, north-central North 

Carolina: U.S. Geological Survey, Geophysical Map GP-883. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Durham Basin, North Carolina, Granville Co., Stem Quad., 

Wilton Quad. 

MAPS: Geophys: aeromagnetism [1:62,500] 

1318 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Glastonbury 

Quadrangle, Hartford and Middlesex Counties, Connecticut: U.S. 

Geological Survey, Map GP-848. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 442 

1319 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of part of the Guilford 

Quadrangle, New Haven County, Connecticut: U.S. Geological Survey, Map GP-875. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1320 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Haddam 

Quadrangle, Middlesex and New Haven Counties, Connecticut: u.s. 

Geological Survey, Map GP-867. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1321 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Hartford South 

and part of the Hartford North Quadrangles, Hartford and Middlesex 

Counties, Connecticut: U.S. Geological Survey, Map GP-847. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1322 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Meriden 

Quadrangle, New Haven, Hartford, and Middlesex Counties, Connecticut: 

U.S. Geological Survey, Map GP-855. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 443 

1323 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Middle Haddam 

Quadrangle, Middlesex County, Connecticut: U.S. Geological Survey, 

Map GP-857. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1324 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Middletown 

Quadrangle, Middlesex, Hartford, and New Haven Counties, Connecticut: 

U.S. Geological Survey, Map GP-856. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1325 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Mount Carmel 

Quadrangle, New Haven County, Connecticut: U.S. Geological Survey, 

Map GP-864. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1326 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the New Britain 

Quadrangle and part of the Avon Quadrangle, Hartford County, 

Connecticut: U.S. Geological Survey, Map GP-846. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 444 

1327 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the New Haven 

Quadrangle, New Haven County, Connecticut: U.S. Geological Survey, Map GP-873. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1328 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Southbury 

Quadrangle and part of the Newtown Quadrangle, New Haven and Fairfield 

Counties, Connecticut: U.S. Geological Survey, Map GP-862. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Pomperaug Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1329 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Southington 

Quadrangle, New Haven and Hartford Counties, Connecticut: u.s. 

Geological Survey, Map GP-854. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 

1330 M U.S. GEOLOGICAL SURVEY, 1973, Aeromagnetic map of the Wallingford 

Quadrangle, New Haven County, Connecticut: U.S. Geological Survey, Map GP-865. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

MAPS: Geophys: aeromagnetism [1:24,000] 
Page 445 

1331 M U.S. GEOLOGICAL SURVEY, 1974, Aeromagnetic map of south half of 

Creedmoor quadrangle, North Carolina: prelimina~ map on open-file: 

U.S. Geological Survey Open-File Report 74-29. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Durham Basin, North Carolina, Wake Co., Granville Co., 

Durham Co., Creedmoor Quad., Grisson Quad. 

MAPS: Geophys: aeromagnetism [1:62,500] 

1332 M U.S. GEOLOGICAL SURVEY, 1974, Aeromagnetic map of south half of Durham 

North Quadrangle, North Carolina: preliminary map on open-file: U.S. 

Geological Survey, Open File Report 74-29. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Durham Basin, North Carolina, Durham Co., Granville Co., NW 

Durham Quad., NE Durham Quad. 

MAPS: Geophys: aeromagnetism [1:62,500] 

1333 M U.S. GEOLOGICAL SURVEY, 1974, Aeromagnetic map of Durham South 

Quadrangle, North Carolina: preliminary map on open-file: U.S. 

Geological Survey Open-File Report 74-29. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

MAPS: Geophys: aeromagnetism [1:62,500] 

1334 M : U.S. GEOLOGICAL SURVEY, 1974, Aeromagnetic map of Frederick County, 

Maryland: U.S. Geological Survey Open-File Report 74-206. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Gettysburg Basin, Maryland, Frederick County 

MAPS: Geophys: aeromagnetism [1:62,500] 
Page 446 

1335 M U.S. GEOLOGICAL SURVEY, 1974, Aeromagnetic map of parts of the 

Greensboro and Raleigh 1° by 2° quadrangles, North Carolina: 

preliminary map on open-file: U.S. Geological Survey Open-File Report 

74-29. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

MAPS: Geophys: aeromagnetism [1:250,000] 

1336 M: U.S. GEOLOGICAL SURVEY, 1976, Aeroradioactivity map of the Amherst, 

Massachusetts area: U.S. Geological Survey Open-File Report 76-515. 

KEYWORDS: geophysics 

aeroradioactivity 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Massachusetts, Hampshire 

Co., Franklin Co., Mt. Toby Quad., Mt. Holyoke Quad., 

Belchertown Quad., Shutesbury Quad. 

MAPS: Geophys: aeroradioactivity [1:24,000] 

1337 M: U.S. GEOLOGICAL SURVEY, 1977, Aeromagnetic map of north-central North 

Carolina: u.s. Geological Survey Open-File Report 77-192. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Dan River Basin, Davie County Basin, North Carolina 

MAPS: Geophys: aeromagnetism [1:250,000] 

1338 M : U.S. GEOLOGICAL SURVEY, 1977, Aeromagnetic map of south-central North 

Carolina: U.S. Geological Survey Open-File Report 77-205. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Wadesboro Basin, Sanford Basin, North Carolina 

MAPS: Geophys: aeromagnetism [1:250,000] 
Page 447 

1339 M : U.S. GEOLOGICAL SURVEYt 1977, Aeroradioactivity map of north-central 

North Carolina: u.s. Geological Survey Open-File Report 77-193. 

KEYWORDS: geophysics 

aeroradioactivity 

GEOGRAPHIC AREA: Dan River Basin, Davie County Basint North Carolina 

MAPS: Geophys: aeromagnetism [1:250,000] 

1340 M : U.S. GEOLOGICAL SURVEY, 1977, Aeroradioactivity map of south-central 

North Carolina: u.s. Geological Survey Open-File Report 77-206. 

KEYWORDS: geophysics 

aeroradioactivity 

GEOGRAPHIC AREA: Wadesboro Basin, Sanford Basin, North Carolina 

MAPS: Geophys: aeromagnetism [1:250,000] 

1341 M: U.S. GEOLOGICAL SURVEY, 1978, Aeromagnetic map of parts of southeastern Virginia: U.S. Geological Survey Open-File Report 78-600. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Richmond Basin, Virginia 

MAPS: Geophys: aeromagnetism [1:125,000] 

1342 M: U.S. GEOLOGICAL SURVEY, 1979, Aeromagnetic map of parts of Delaware 

and New Jersey: u.s. Geological Survey Open-File Report 79-1683. 

SUMMARY: Map covers eastern area of N. Jersey Newark Basin. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geophys: aeromagnetism [1:250,000] 
Page 448 

1343 M : U.S. GEOLOGICAL SURVEY, 1980, Aeromagnetic map of Fairfax County, 

Virginia: u.s. Geological Survey Open-File Map 80-813. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: aeromagnetism [1:48,000] 

1344 M : U.S. GEOLOGICAL SURVEY, 1980, Aeroradioactivity map of Fairfax County, 

Virginia: U.S. Geological Survey Open-File Map 80-812. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: aeromagnetism [1:48,000] 

1345 M U.S. GEOLOGICAL SURVEY, 1981, Aeromagnetic map of the Culpeper Basin 

and vicinity, Virginia and Maryland: U.S. Geological Survey OpenFile Report 81-472. 

KEYWORDS: geophysics 

aeromagnetism 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Maryland 

MAPS: Geophys: aeromagnetism [1:125,000] 

1346 p UCHUPI, E., BALLARD, R.D., AND ELLIS, J.B., 1977, Continental slope 

and upper rise off western Nova Scotia and Georges Bank: American 

Association of Petroleum Geologists, Bulletin, v. 61, p. 1483-1492. 

SUMMARY: Geophysical data are used to outline the Mesozoic history of the 

continental rise and shelf. Emphasis is placed upon the evolution 

of salt deposits and the marine transgression within the Georges 

Bank and Scotian Basins. 

KEYWORDS: buried basins 

seismic profiles 

GEOGRAPHIC AREA: Maritime Province, Canada 
Page 449 

1347 p UCHUPI, ELAZAR, AND AUSTIN, JAMES ALBERT, JR., 1979, The geologic 

history of the passive margin off New England and the Canadian Maritime Provinces: Tectonophysics, v. 59, p. 53-69. 

SUMMARY: This is a summary of the proposed tectonic events occurring offshore 

from New England to Newfoundland. Rifting was initiated in the Late 

Triassic and completed by Early Jurassic. A block-faulted terrain 

developed by uplift and tensional fracturing. Mesozoic sediments on 

the continental shelf consist of evaporites, hemipelagic limestones, 

and shales. 

KEYWORDS: tectonics 

buried basins 

GEOGRAPHIC AREA: Maritime 

MAPS: Geophys: seismic profiles 

v 

1348 p VANDER VOO, R., MAUK, F.J., AND FRENCH, R.B., 1976, Permian-Triassic 

continental configurations and the origin of the Gulf of Mexico: 

Geology, v. 4, p. 177-180. 

SUMMARY: Paleomagnetics is used to propose a new juxtaposition of North and 

South America. The Gulf of Mexico may have opened before the 

Atlantic, at the same time, or later. In the first case, a counterclockwise Late Triassic rotation of Gondwanaland w.r.t. N. America 

is required. More paleomagnetic data are needed to resolve these 

options. 

KEYWORDS: geophysics 

paleomagnetism 

tectonics 

GEOGRAPHIC AREA: Regional 

DATA: Plots: pole positions 

1349 p VANHOUTEN, F.B., 1969, Stratigraphy and sedimentology of Triassic 

rocks of eastern North America: U.S. Atomic Energy Commission (Grand 

Junction Office), Report GJ0-7402, 77 p. 

KEYWORDS: sedimentation 

stratigraphy 

GEOGRAPHIC AREA: Regional 
Page 450 

1350 F VANHOUTEN, F.B., 1980, Late Triassic part of Newark Supergroup, 

Delaware River section, West-Central New Jersey: in, Manspeizer, 

W., ed., Field Studies of New Jersey Geology and Guide to Feild Trips, 

New York State Geological Association, 52nd Meeting, p. 264-276. 

SUMMARY: Field trip stops include the following which are also described in 

text: Hammer Creek conglomerate, Brunswick Fm., Lockatong Fm., 

Lockatong hornfels, Stockton arkose. The depositional environments 

and sedimentary facies development are discussed. 

KEYWORDS: sedimentation 

general geology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Hunterdon County 

MAPS: Geol: Delaware River area 

Section: stratigraphic 

1351 P VANHOUTEN, FRANKLYN B., 1960, Composition of Upper Triassic Lockatong 

argillite, west-central New Jersey: Journal of Geology, v. 68, p. 

666-669. 

SUMMARY: The massive gray to red-brown argillite consists predominantly of 

analcime, dolomite, feldspar, and a 10 ~micaceous clay mineral. 

This facies contains as much as 7% Na20 and as little as 47% Si02. 

In platy, black shale, analcime is rare, pyrite is common, and 

dolomite, clays, and feldspar are abundant. Contact metamorphic 

effects of diabase convert clay to biotite, analcime to albite, 

dolomite to calcite, and pyrite to pyrrhotite. 

KEYWORDS: sediments 

mineralogy 

geochemistry 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: sketch 

DATA: Plots: XRD data 
1352 p 

Page 451 

VANHOUTEN, FRANKLYN B., 1962, Cyclic sedimentation and the origin of 

analcime-rich Upper Triassic Lockatong Formation, West-Central New 

Jersey and adjacent Pennsylvania: American Journal of Science, v. 

260, p. 561-576. 

SUMMARY: (See Van Houten, 1964.) Short detrital and chemical cycles comprise 

ten long cycles, each about 345 feet, so that the Lockatong Formation is 3500 feet deposited over a 5.1 m.y. period. Structure and 

textures of the cycles are outlined. Lockatong and Brunswick 

intertonguing resulted from interaction of lacustrine and flood 

plain environments by climatic cycles. 

KEYWORDS: sedimentation 

climate 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 

DATA: Photos: outcrops, samples 

1353 p VANHOUTEN, FRANKLYN B., 1964, Cyclic lacustrine sedimentation, Upper 

Triassic Lockatong Formation, Central New Jersey and adjacent 

Pennsylvania: Kansas Geological Survey, Bulletin 169, p. 497-531. 

SUMMARY: Detrital and more common chemical cycles are described (primary 

structures and textures). Detrital cycles (14 to 20 ft.) consist of 

lower black shale, carbonate mudstone, and calcareous silty 

mudstone. Chemical cycles (8 to 13ft.) consist of gray to black 

dolomite mudstone with pyrite, a central gray mudstone, and an upper 

massive analcime- and carbonate-rich mudstone (7% Na, 47% Si, 40% 

analcime). Cycles, resulting from alternating climatic patterns, 

represent 21,000-year cycles. 

KEYWORDS: sedimentation 

climate 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 

MAPS: Section: stratigraphic 

DATA: Photos: outcrops, core, samples 
Page 452 

1354 p VANHOUTEN, FRANKLYN B., 1965, Composition of Triassic Lockatong and 

associated formations of Newark Group, Central New Jersey and adjacent 

Pennsylvania: American Journal of Science, v. 263, p. 825-863. 

SUMMARY: The Stockton arkose contains 3.5% Na20, 1.27 K20, and 0.3% MgO; 

while mudstones contain 5.17% K20 and 2.6% MgO. Detrital Lockatong 

mudstone contains 4% Na20, 5.2% K20, 3.8% MgO, and 49% Si02; and 

chemical cycles contain 3.3% K20, 4% MgO, 6.4% Na20, 49% Si02, and 

anamolously high Cr, V, Ni, and Co. Brunswick shale contains 3.5% 

and 5.8% Na20 in the upper and lower parts, respectively. Physicochemical environments are discussed. 

KEYWORDS: sediments 

geochemistry 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 

MAPS: Geol: with K20 and Na20 contents (no numerical scale) 

DATA: Chern. (type of data): major oxide; organics; trace 

Plots: K20, Na20 stratigraphy 

1355 P VANHOUTEN, FRANKLYN B., 1965, Crystal casts in Upper Triassic 

Lockatong and Brunswick Formations: Sedimentology, v. 4, p. 301-313. 

SUMMARY: Glauberite casts, now filled with calcite, occur as large complete 

casts, rosettes of elongate, radiating casts, and long sprays and 

stringers of casts. Those in the Brunswick mudstone form large 

casts and beds several inches thick; while those in analcimedolomite Lockatong argillite are more scattered and smaller. 

Glauberite developed during the drying, waning, saline lake cycles. 

KEYWORDS: sedimentation 

sediments 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Photos: casts 
1356 A 

Page 453 

VANHOUTEN, FRANKLYN B., 1965, Origin of sodium-rich Triassic lacustrine deposits, New Jersey and Pennsylvania: American Association of 

Petroleum Geologists, Bulletin, v. 49, p. 361. 

SUMMARY: Sodium was derived from Na-feldspar rich source rocks. Lockatong 

detrital cycles (avg. 15 ft.) contain Na-feldspar, illite, chlorite, 

calcite, and little quartz or K-spar, and accumulated in an open 

lake of low salinity (Eh 0 to -2.5, pH 7 to 8). Chemical cycles 

contain analcime, Na-feldspar, dolomite-calcite, illite, chlorite, 

and no quartz, and accumulated in a closed lake of moderate salinity 

(Eh (-2), pH (8)) for gray beds and higher salinity (Eh (-1), pH 

(7.75)) for red beds. 

KEYWORDS: sedimentation 

sediments 

geochemistry 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Pennsylvania 

1357 A VANHOUTEN, FRANKLYN B., 1969, Hornfels facies, Late Triassic Newark 

Group, New Jersey: Geological Society of America, Abstracts with 

Programs, v. 1, pt. 7, p. 229. 

SUMMARY: This abstract presents detailed descriptions of a number of mineral 

assemblages developed in the Brunswick mudstone and the Lockatong cycles (lower black shale, carbonate mudstone, silty argillite, 

analcime-dolomite argillite). 

KEYWORDS: metamorphism 

hornfels 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
1358 F 

Page 454 

VANHOUTEN, FRANKLYN B., 1969, Late Triassic Newark Group, northcentral New Jersey and adjacent New York and Pennsylvania: in~ 

Subitzky, S., ed., Geology of Selected Areas in New Jersey and Eastern 

Pennsylvania and Guidebook of Excursions, Geological Society of 

America, Annual Meeting 1969, Rutgers University Press, p. 314-347. 

SUMMARY: A summary of the nomenclature, paleontology, age, correlation, 

provenance, deposition, and composition of the Stockton, Lockatong, 

and Brunswick Fms. is presented. Fieldstops include the Stockton 

arkose, Lockatong chemical cycles, Brunswick Fm., Hammer Creek conglomerate, First Watchung basalt and tuff, and Lockatong hornfels. 

KEYWORDS: sedimentation 

general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey, New York 

MAPS: Geol: sketches 

Section: stratigraphic sections; sedimentary cycles; cross sections 

DATA: Chern. (type of data): major oxide (Stockton, Lockatong, Brunswick Fms.) 

1359 A VANHOUTEN, FRANKLYN B., 1971, Comparison of thermal metamorphic 

effects on Stockton, Lockatong, and Brunswick deposits: Pennsylvania 

Academy of Science, Proceedings, v. 45, p. 200. 

SUMMARY: Newark high-grade hornfels consist of datolite, scapolite, fluorite, 

and tourmaline, suggesting volatile addition from the diabase. Some 

scapolite and tourmaline may have developed from halite and illite, 

respectively. Toward intrusions Na-feldspar increases, and K-spar 

decreases. The origin of analcime is considered, and nepheline 

syenite bodies may result from high-temperature feldspathoidal 

hornfels. 

KEYWORDS: metamorphism 

hornfels 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 
Page 455 

1360 p VANHOUTEN, FRANKLYN B., 1971, Contact metamorphic mineral assemblages, Late Triassic Newark Group, New Jersey: Contributions to 

Mineralogy and Petrology, v. 30, p. 1-14. 

SUMMARY: (See Van Houten, 1971.) Stockton arkose alters to diopside and 

sphene quartzo-feldspathic hornfels; Lockatong calcareous mudstone 

alters to calc-silicate hornfels; Lockatong calcareous, feldspathic 

argillite alters to sanidine, anorthoclase, aegirine, riebeckite, 

and scapolite; and Lockatong analcime-dolomite argillite alters to 

cancrinite, natrolite-thomsonite, and rarely sodalite and nepheline. 

KEYWORDS: metamorphism 

hornfels 

mineralogy 

geochemistry 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): major oxide 

Plots: mineral assemblages 

1361 P VANHOUTEN, FRANKLYN B., 1977, Triassic-Liassic deposits of Morocco 

and Eastern North America: comparison: American Association of 

Petroleum Geologists, Bulletin, v. 61, p. 79-99. 

SUMMARY: Deposits in Morocco and N. America comprise red-bed evaporites and 

clastics, respectively. Faulting and basin. filling began in Carnian 

time with a warm, moist climate that became dry and hot by the early 

Liassic. Salt brines covered both continental margins and interior 

Morocco by Middle Liassic. The history of the areas is further 

developed and includes timing of igneous activity and marine transgression. 

KEYWORDS: sedimentation 

tectonics 

economic geology 

salt 

GEOGRAPHIC AREA: Regional, Morocco 

MAPS: Geol: sketches 

Section: regional stratigraphy 
1362 A 

Page 456 

VANHOUTEN, FRANKLYN B., AND OLSON, R.C., JR., 1957, Lithology of 

Upper Triassic Lockatong argillite: Geological Society of America, 

Bulletin, v. 68, p. 1808. 

SUMMARY: The fm. consists of gray to black argillite in the middle and 

coarser, redder argillites in the upper and lower parts; illite and 

authigenic analcime; dolomite as thin layers in the dark argillite; 

pyrite crystals and nodules in the black argillite; and small-scale 

sedimentary structures: graded-, cross-, and thin-bedding, ripple 

marks and mudcracks. 

KEYWORDS: sedimentation 

sediments 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, New Jersey 

1363 p VILBRANDT, FRANK C., 1927, Oil-bearing shales of Deep River Valley: 

North Carolina Department of Conservation and Development, Economic 

Paper 59, 23 p. 

SUMMARY: Analyses of the coal and shale strata from a core .5 mile SW of the 

Cumnock Mine shaft indicate that oil-bearing units (several inches 

in thickness) average 30 gallons of oil per ton with oil and ammonia 

sulfate yields below other notable oil shales of the world. One 

billion tons of oil-bearing shale is estimated to occur in the 

basin, and economic development is suggested feasible. 

KEYWORDS: economic geology 

coal 

oil 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

1364 T VOLK, KAREN, 1977, The paleomagnetism of Mesozoic diabase and the 

deformational history of southeastern Pennsylvania: Ph.D. Thesis, 

Pennsylvania State University. 

KEYWORDS: diabase 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 
1365 p 

Page 457 

VOLK, KAREN WAGNER, 1977, Probable PSD behavior in the Rossville-type 

diabase of Pennsylvania: Geophysical Journal of the Royal Astronomical Society, v. 49, p. 685-693. 

SUMMARY: The Rossville-type (low Cu, Ti, quartz tholeiite) has a multidomained primary magnetic structure, while that of the York Haventype (high Cu, Ti, quartz tholeiite) is single domained due to exsolution lamellae. Inconsistencies are present in the multi-domained 

Rossville-type, which may be a pseudo single domained (PSD) 

material. 

KEYWORDS: diabase 

geophysics 

magnetism 

paleomagnetism 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

1366 p VON HUENE, F.R., 1926, Notes on the age of the continental Triassic 

beds in North America, with remarks on some fossil vertebrates: u.s. 

National Museum, Proceedings, v. 69, Art. 18, p. 1-10. 

SUMMARY: A study of vertebrates from the basins and western U.S. indicates 

that, in the East Coast basins, the Parasuchians and Labyrinthodonts are middle Triassic between Mushelkalk and lower Keuper. 

Also, the Conn. and Mass. Saurischians are upper Keuper or Rhaetic. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

w 

1367 A WALKER, ALFRED T., 1971, Chemistry of the Triassic Watchung lava flows 

of the Newark Basin, New Jersey: Pennsylvania Academy of Science, 

Proceedings, v. 45, p. 200-201. 

SUMMARY: The three flows, with K20, Sr, Zr, and REE values between oceanic 

and alkali tholeiitic basalts, each possesses a uniform composition. 

Ni distribution indicates pulses in the 1st and 2nd flows, therefore 

paralleling the multiple intrusion theory of the Palisades Sill. A 

common origin for all the Newark system tholeiites is suggested by 

Zr and Ti ratios which show a NE trend of enrichment. 

KEYWORDS: basalt 

geochemistry 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 458 

1368 P : WALKER, FREDERICK, 1940, Differentiation of the Palisade diabase, New 

Jersey: Geological Society of America, Bulletin, v. 51, p. 1059-1106. 

SUMMARY: Petrographic and geochemical study indicates that the sill differentiated by crystal settling of olivine and pyroxene with no major 

settling of magnetite or plagioclase, and that upper, late stage, 

volatile-rich differentiates formed pegmatites and marginal sadie 

veins. 

KEYWORDS: diabase 

geochemistry 

petrology 

mineralogy 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): major oxide 

Plots: pyroxene composition 

1369 P WALKER, FREDERICK, 1952, Late magmatic ores and the Palisade diabase 

sheet: Economic Geology, v. 47, p. 349-351. 

SUMMARY: It is argued that one magmatic pulse is represented and that iron 

enrichment in the later, upper portions of the sill does not exceed 

6-10 percent by volume. However, later stage, cross-cutting pegmatitic veins may contain as much as 25 percent (FeO + Fe203 + Ti02) 

(George Washington Bridge Section), indicating that such fluids may 

form iron-rich limestone replacement bodies adjacent to diabase 

(Cornwall-type). 

KEYWORDS: diabase 

petrology 

economic geology 

iron 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Plots: Fe-Mg-alkali 
Page 459 

1370 P : WALKER, FREDERICK, 1953, The pegmatitic differentiates of basic 

sheets: American Journal of Science, v. 251, p. 41-60. 

SUMMARY: Studies of sills, including those from Goose Creek, Va., the 

Palisades Sill, and West Rock, Connecticut, indicate that veins and 

patches of diabase pegmatite (pyroxene, plagioclase An 40, 

magnetite, quartz, alkali-feldspar, and amphibole) represent a late 

stage, iron- and titanium-enriched differentiate injected into rifts 

within the crystallizing host diabase. 

KEYWORDS: diabase 

petrology 

chemistry 

granophyre 

GEOGRAPHIC AREA: Culpeper Basin, Virginia; Newark Basin, New Jersey; Hartford 

Basin, Connecticut 

DATA: Chern. (type of data): major oxide 

Photos: photomicrograph 

Plots: A - F - M 

1371 P WALKER, KENNETH R., 1969, A mineralogical, petrological, and geochemical investigation of the Palisades Sill, New Jersey: Geological 

Society of America, Memoir 115, p. 175-187. 

SUMMARY: Studies indicate that two magma phases are evident, and that fractional crystaliization is an important differentiation process. 

Differentiation was controlled by rates of cooling and resulted in 

an iron, silica, and alkali enrichment. Geochemical behavior and 

differentiation trends are discussed. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: sketch 

Section: mineral composition with height in sill 

DATA: Chern. (type of data): major oxide, trace 

Plots: A-F-M 
Page 460 

1372 P : WALKER, KENNETH R., 1969, The Palisades Sill, New Jersey: a reinvestigation: Geological Society of America, Special Paper 111, 178 p. 

SUMMARY: All aspects of the sill's chemistry, differentiation, and petrography are outlined. Conclusions include: multiple two magma 

intrusion; olivine crystallzied largely after emplacement of the 

second, larger phase; fractional crystallization dominated. 

Behavior and partitioning of trace elements is studied. 

KEYWORDS: diabase 

mineralogy 

geochemistry 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): major oxide, trace (bulk and mineral species) 

Photos: outcrops, photomicrographs 

Plots: distribution trends; coherence curves 

1373 F WALKER, KENNETH R., AND POLDERVAART, A., 1962, The Palisade Sill: 

International Mineralogical Association, 3rd General Congress, 

Northern Field Excursion Guidebook, p. 5-7. 

SUMMARY: The general mineralogic and field relations of the sill are outlined, and it is proposed that the olivine-rich layer toward the 

base of the sill formed, not by crystal settling, but by injection 

of a second magma within a partially crystallized previous magma. 

Fractional crystallization is considered responsible for the classic 

enrichment of the upper parts of the sill in iron, silica, and 

alkalies. 

KEYWORDS: general geology 

diabase 

GEOGRAPHIC AREA: Newark Basin, New Jersey, New York 

MAPS: Geol: sketch 
Page 461 

1374 p WALKER, T.L., AND PARSONS, A.L., 1922, The zeolites of Nova Scotia: 

Toronto University, Geological Series, v. 14, p. 13-73. 

SUMMARY: This work includes zeolite dehydration experiments, descriptions of 

the North Mountain and Five Island basalts, the zeolite localities 

and their mineral assemblages, and a detailed crystallographic and 

chemical description of the minerals. 

KEYWORDS: basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Maritime 

MAPS: Geol: sketch 

DATA: Chern. (type of data): major oxide 

1375 A WAMPLER, J.M., AND DOOLEY, ROBERT E., 1975, Potassium-argon determination of Triassic and Eocene igneous activity in Rockingham County, 

Virginia: Geological Society of America, Abstracts with Programs, v. 

7, p. 547. 

SUMMARY: Diabase dikes striking NW-SE are Triassic in age. (This area is in 

NW Virginia and not in a Triassic Basin.) 

KEYWORDS: geophysics 

radiometric age 

K/Ar dating 

GEOGRAPHIC AREA: Virginia, Rockingham Co. (outside Triassic basins) 

1376 p WANNER, H.E., 1921, Some faunal remains from the Trias of York County, 

Pennsylvania: Academy of Natural Sciences of Philadelphia, Proceedings, v. 73, p. 25-38. 

SUMMARY: Fossil crustaceans, fishes, reptiles, mollusks, and polychaeta, as 

well as tracks, occur in red, green, and black shales along the Big 

Conewago and Little Conewago Creeks. The species are described in 

detail. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York County 

DATA: Photos: fossils 
Page 462 

1377 p WANNER, H.E., 1927, Some additional faunal remains from the Trias of 

York County, Pennsylvania: Academy of Natural Sciences of Philadelphia, Proceedings, v. 78, p. 21-28. 

SUMMARY: Additional reptilian and mollusca remains are described (see Wanner, 

1921) and occur in nodular, calcareous sandstone and the shales in 

contact with it. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania, York County 

MAPS: Mise: localities 

1378 T: WARD, FREEMAN, 1907, Geology of the East Haven-Branford area: Ph.D. 

Thesis, Yale University, 135 p. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, New Haven Co. 

1379 P : WARD, LESTER F., 1891, The plant-bearing deposits of the American 

Triassic: Science, v. 18, p. 287-288. 

SUMMARY: It is shown that the flora can be correlated with the Keuper and, to 

a lesser extent, the Rhaetic, and that in many cases, a given plant 

fossil is found in more than one of the East Coast Basins, suggesting their correlation. Fossils from the Lias and Oolite periods are 

also present but few in number. No details on species are provided. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Regional 

1380 A WARD, ROLAND V., AND ROBERTS, JOSEPH K., 1937, Prismatic jointing in 

the Virginia Triassic: Geological Society of America, Proceedings, 

1936, p. 111. 

SUMMARY: A quarry, 4 miles NW of Remington, displays fine-grained diabase 

prisms from 4 to 12 inches across and dipping 70° SE. The diabase 

consists of twinned labradorite and augite with accessory chlorite, 

sericite, calcite, and magnetite. 

KEYWORDS: diabase 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fauquier Co. 
Page 463 

1381 p WARD, ROLAND V., AND ROBERTS, JOSEPH K., 1938, Prismatic jointing in 

Triassic diabase of Virginia: Washington Academy of Sciences, 

Journal, v. 28, p. 153-158. 

SUMMARY: A quarry 4 mi. NW of Remington exposes ophitic, prismatic diabase as 

well as amygdaloidal, sheet-like diabase. The prisms dip from 68° 

to 72° in aN 15°E direction and are attributed to contraction by 

cooling. 

KEYWORDS: diabase 

basalt 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fauquier Co., Remington Quad. 

DATA: Photos: outcrop, photomicrographs 

1382 p WATKINS, J.S., AND OTHERS, eds., 1979, Geological and geophysical 

investigations of continental margins: American Association of 

Petroleum Geologists, Memoir 29, 472 p. 

SUMMARY: Included in this volume are papers concerning the distribution, 

general geology, and structure of offshore Triassic-Jurassic 

deposits of the U.S. Atlantic margin. 

KEYWORDS: buried basins 

geophysics 

seismic profiles 

GEOGRAPHIC AREA: Regional 

1383 P : WATSON, T.L., AND WEED, W.H., 1906, The Virginia copper deposits: 

Economic Geology, v. 1, p. 309-330. 

SUMMARY: One paragraph is devoted to Triassic copper occurrences and gives no 

localities. It is noted that no veins or 11Well-defined11 horizons 

exist, and that the ores are for the most part malachite coatings 

along fractures or dissimanated copper sulfides and phosphates 

within the rock,. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
Page 464 

1384 p WATSON, THOMAS L., AND CLINE, JUSTUS H., 1913, Petrology of a series 

of igneous dikes in Central Western Virginia: Geological Society of 

America, Bulletin, v. 24, p. 301-334. 

SUMMARY: Granite-felsophyre, quartz gabbro, nepheline syenite, analcitebasalt, camptonite, and olivine diabase intrude Paleozoic rocks - principally the Shenandoah Valley limestones. Petrographic and 

chemical data are presented. All the dikes are considered to be of 

Triassic age. 

KEYWORDS: general geology 

diabase 

granophyre 

GEOGRAPHIC AREA: Virginia, Highland Co., Augusta Co., Rockingham Co., 

Rockbridge Co. (not in Triassic basin) 

MAPS: Geol: sketch 

Mise: localities 

DATA: Chern. (type of data): major oxide 

Photos: outcrops 

1385 p WATSON, THOMAS LEONARD, 1907, Geology of the Virginia barite deposits: 

American Institute of Mining Engineers, Transactions, v. 38, p. 710-

733. 

SUMMARY: Four miles SE of Catlett, barite occurs within brecciated zones as 

wide as several feet. The breccia is comprised of red shale frag~ 

ments cemented by crystalline limestone. Both red sandy shale and 

limestone occur in the old mine area which is along the eastern 

margin of the basin. The area was last worked in 1903, with a 

1500-ton production of ore. (Only one and one-half pages of text 

are devoted to this occurrence.) 

KEYWORDS: economic geology barite 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Prince William Co. 

1386 T WATTS, D.R., 1975, A paleomagnetic study of four Mesozoic diabase dike 

swarms of the southern Appalachian Mountains: M.S. Thesis, Ohio State 

University, 115 p. 

KEYWORDS: diabase 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: Regional 
1387 A 

Page 465 

WATTS, DOYLE, AND NOLTIMIER, H.D., 1974, Paleomagnetic study of 

diabase dikes in the Inner Piedmont of North Carolina and Georgia: 

American Geophysical Union, Transactions, v. 55, p. 675. 

SUMMARY: 12 VGP's are obtained for 112 samples. Six are from the same 150-

mile-long, 169-m.y.-old dike and yield +60.7° lat., +70.8° long., 

close to the average of the other dikes. VGP's obtained from dikes 

that cross the Brevard Zone show no change across the zone in one 

case (Morgantown), but a 12° variation in a second dike (Rebun 

County). 

KEYWORDS: diabase 

geophysics 

paleomagnetism 

GEOGRAPHIC AREA: North Carolina, Georgia (outside of Triassic basin) 

1388 T WEDDLE, T.K., 1979, Petrology of Upper Triassic sandstones from the 

Hartford, Pomperaug and Newark Basins: M.S. Thesis, University of 

Massachusetts, 105 p. 

KEYWORDS: sediments 

petrology 

GEOGRAPHIC AREA: Hartford Basin, Pomperaug Basin, Newark Basin, Connecticut, 

Massachusetts, New Jersey 

1389 p WEDDLE, T.K., AND HUBERT, J.F., 1983, Petrology of upper Triassic 

fluvial sandstones of the Newark Supergroup in the northern Newark, 

Pomperaug, Hartford, and Deerfield Basins: implications for the broad 

terrane hypothesis: Geological Society of America, Abstracts with 

Programs, v. 15, 121. 

SUMMARY: (See Weddle and Hubert, 1983.) The provenance of the Passaic 

(Newark), New Haven (Hartford and Pomperaug), and the Newark and 

Pomperaug basins are different, indicating the basins were not 

connected. 

KEYWORDS: sedimentation 

sediments 

petrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey; Hartford Basin, Pomperaug Basin, 

Deerfield Basin, Connecticut, Massachusetts 
Page 466 

1390 p WEDDLE, THOMAS K., AND HUBERT, JOHN F., 1983, Petrology of Upper 

Triassic sandstones of the Newark Supergroup in the Northern Newark, 

Pomperaug, Hartford, and Deerfield Basins: Northeastern Geology, v. 

5, no. 1, p. 8-22. 

SUMMARY: The northern Newark Basin Passaic Fm. (N.Y.) litharenites were 

derived from pre-Triassic rocks to the west and north. The northern 

N.J. Passaic lithic arkoses were derived from the east and northeast. The New Haven arkoses of the Hartford and Pomperaug Basins 

were derived from the eastern highlands, and the Deerfield Basin 

arkoses from the north and east. The Newark and Hartford Basins 

were not once connected.-

KEYWORDS: sedimentation 

sediments 

pet ro 1 ogy 

GEOGRAPHIC AREA: Newark Basin, New Jersey; Pomperaug Basin, Hartford Basin, 

Deerfield Basin, Connecticut, Massachusetts 

MAPS: Section: columnar, stratigraphic 

Mise: paleogeography; samples 

DATA: Plots: petrography, paleocurrents 

1391 p WEED, WALTER HARVEY, 1903, Copper deposits of New Jersey: New Jersey 

Geological Survey, Annual Report of the State Geologist, 1902, p. 125-

140. 

SUMMARY: The history, nature of the ores and mine workings at Arlington, 

Sommerville, and the American Mine are described. Chalcocite and 

secondary copper minerals occur in red beds adjacent to basalt or 

diabase and often concentrated in faults. Native copper and calcite 

occur in 11 bleached zones 11 at depth. Iron oxides in the sediments 

served as the precipitating agent, and carbonaceous matter resulted 

in the formation of native copper. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

DATA: Chern. (type of data): ore (major oxide) 
Page 467 

1392 p WEED, WALTER HARVEY, 1904, The Griggstown, N.J., copper deposit: 

in, Contributions to Economic Geology, U.S. Geological Survey 

Bulletin 225, p. 187-189. 

SUMMARY: A conformable seam of native copper and secondary copper minerals 

occurs within red Triassic shale three miles north of Rocky Hill and 

just above a diabase sheet. The mineralized seam, varying in size 

up to a 11 foot or more, .. occurs within .. altered and leached .. shale 

hornfels rich in chlorite. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, ~ew Jersey, Somerset County 

1393 P : WEED, WALTER HARVEY, 1911, Copper deposits of the Appalachian states: 

U.S. Geological Survey Bulletin 455, 166 p. 

SUMMARY: Copper occurrences in Triassic rocks are described from near 

Leesburg and Culpeper, Virginia, from New Jersey (Schuyler, 

Griggstown, and American Mines), and from Connecticut (Simsbury, 

Higley, Bristol Mines, and New Haven County occurrences). Copper 

mineralization is attributed to the adjacent basalt units. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Regional 

1394 T WEEKS, L., 1950, The tectonic significance of the joints in the First 

Watchung flow, New Jersey: M.S. Thesis, Columbia University, 38 p. 

KEYWORDS: basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 468 

1395 p WEEMS, R.E., 1982, Geology and mineral resources of the Ashland 

Quadrangle, Virginia: Virginia Division of Mineral Resources, OpenFile Report 82-2, 34 p. 

SUMMARY: Triassic rocks occur within the fault-bounded basin and consist of 

the members of the Doswell Formation, largely of sandstone, conglomerate, and siltstone. Diabase dikes occur. Exposures of 

Triassic rocks are limited to stream and river valleys. Provenance 

is discussed, and fossil species are noted. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Taylorsville Basin, Virginia, Hanover Co., Ashland Quad. 

MAPS: Geol: [1:24,000] 

1396 A WEEMS, ROBERT E., 1972, The Taylorsville Basin of Virginia: Geological Society of America, Abstracts with Programs, v. 4, p. 112-113. 

SUMMARY: Sediment provenance and structure indicate the basin is not an erosional outlier of the Richmond Basin. The Taylorsville Basin is a 

reversed-faulted graben in which Triassic rocks are more strongly 

folded than in other basins. Lithologic units are (from base): 

black siltstone, sandstone, conglomerate, coal; tan, cross-bedded 

sandstone; and gray, poorly consolidated siltstones, sandstones, and 

conglomerates. Local source areas are from theW, SW, and SE with 

sediment transport to the NE. Rhaetic fauna occur high in the lower 

unit. 

KEYWORDS: general geology 

sedimentation 

structure 

GEOGRAPHIC AREA: Taylorsville Basin, Virginia 

1397 p WEEMS, ROBERT E., 1979, A large parasuchian {Phytosaur) from the Upper 

Triassic portion of the Culpeper Basin of Virginia (USA): Biological 

Society of Washington, Proceedings, v. 92, no. 4, p. 682-688. 

SUMMARY: Postcranial remains comparable to Rutiodon manhattanensis were 

recovered from an excavation at Dulles International Airport near 

the base of the Balls Bluff Siltstone (see Lee, K.Y.). This find, 

described in detail, represents the first parasuchian and the only 

tetrapod skeletal material reported from the basin. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Fairfax Co. 

DATA: Photos: fossils 
Page 469 

1398 p WEEMS, ROBERT E., 1980, Geology of the Taylorsville Basin, Hanover 

County, Virginia: Virginia Division of Mineral Resources, Publication 

27, p. 23-38. 

SUMMARY: The basin, fault-bounded on its west side, consists of Middle to 

Late Carnian deposits (from base): sandstones and conglomerates; 

calcareous sandstones, coal, and shale; sandstones and conglomerates; and siltstones and sandstones. Border conglomerates occur 

along both margins. Sediment provenance and the depositional 

history are outlined. 

KEYWORDS: general geology 

sedimentation 

paleontology 

economic geology 

coal 

GEOGRAPHIC AREA: Taylorsville Basin, Virginia 

MAPS: Geol: sketch 

Section: stratigraphic type sections 

1399 M WEEMS, ROBERT E., 1981, Geology of the Hanover Academy Quadrangle, 

Virginia: Virginia Division of Mineral Resources, Publication 30. 

KEYWORDS: general geology 

economic geology 

coal 

GEOGRAPHIC AREA: Taylorsville Basin, Virginia 

MAPS: Geol: [1:24,000] 

1400 A WEEMS, ROBERT E., 1982, Footprints in the Newark Supergroup as a 

stratigraphic tool: Geological Society of America, Abstracts with 

Programs, v. 14, p. 94. 

SUMMARY: Footprint assemblages correlate with fish and pollen correlation 

among beds of similar ages and suggest that regional footprint 

correlation may be used, especially where other biostratigraphic 

remains are absent. Related observations include: lack of thecodont tracks in the Jurassic, upward stratigraphic increase in track 

size, and the puzzling restriction of known ornithischian tracks to 

Norian and younger strata. 

KEYWORDS: paleontology 

stratigraphy 

GEOGRAPHIC AREA: Regional 
1401 T 

Page 470 

WEIGAND, PETER W., 1970, Major and trace element geochemistry of the 

Mesozoic dolerite dikes from eastern North America: Ph.D. Thesis, 

University of North Carolina. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Regional 

1402 A WEIGAND, PETER W., 1970, Major element geochemistry of the Eastern 

North American Triassic (?) dikes: Geological Society of America, 

Abstracts with Programs, v. 2, p. 247. 

SUMMARY: Study of 200 dikes reveals two types: continental quartz-tholeiite, 

and oceanic olivine-tholeiite. The former type occurs in Nova 

Scotia, Conn., Pa., Md., and Ga., while the latter type is found in 

N.C. and S.C. Va. and Alabama dikes are of both types. Dikes 

exhibit a Palisades-type differentiation. The composition ranges 

shown on plots are attributed to crystal settling and crustal contamination. 

KEYWORDS: diabase 

geochemistry 

GEOGRAPHIC AREA: Regional 

1403 p WEIGAND, PETER W., AND RAGLAND, PAUL C., 1970, Geochemistry of 

Mesozoic dolerite dikes from Eastern North America: Contributions to 

Mineralogy and Petrology, v. 29, p. 195-214. 

SUMMARY: Three types occur: southern-dominated olivine-normative, and 

northern-dominated high- and low-Ti02 quartz-normative diabases. 

The olivine type may represent the parent to the quartz-types, 

although the quartz-types developed from different magma parents. 

The quartz-types may be derived by various crystal fractionation 

processes from the olivine-type. Incompatible vertical inhomogeneity is suggested, and the geographic distribution of the types 

suggests differing tectonic regimes in the N and S. 

KEYWORDS: diabase 

geochemistry 

petrology 

GEOGRAPHIC AREA: Regional 

DATA: Chern. (type of data): major oxide, trace 

Plots: Ti02 vs. mafic index; 01-Hy-Qz-Di-Ne; Cu vs. mafic index 
Page 471 

1404 T WENK, W., 1983, Seismic refraction measurements in Connecticut's 

Triassic Basin: M.S. Thesis, University of Connecticut. 

KEYWORDS: geophysics 

seismic profiles 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

1405 T WESSEL, J.M., 1969, A paleocurrent and petrographic study of the 

Triassic Mount Toby Conglomerate and Turners Falls Sandstone of north 

central Massachusetts: M.S. Thesis, University of Massachusetts, 157 

p. 

KEYWORDS: sedimentation 

sediments 

petrology 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

1406 p WESSEL, JAMES M., 1969, Sedimentary history of Upper Triassic alluvial 

fan complexes in North-Central Massachusetts: University of 

Massachusetts, Department of Geology, Contribution No. 2, 157 p. 

SUMMARY: (See Wessel, 1971.) This extensive work covers the stratigraphy, 

sedimentary structures, provenance, petrography, and depositional 

climate of the Deerfield Basin. 

KEYWORDS: general geology 

sedimentation 

stratigraphy 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geol: sketches 

Mise: paleocurrent; pebble orientation; clast size 

DATA: Photos: outcrops, photomicrographs 

Plots: grain size; sandstone composition 
1407 A 

Page 472 

WESSEL, JAMES, 1971, Sedimentology and stratigraphy of some Upper 

Triassic fanglomerates, Northern Connecticut Valley, Massachusetts: 

Pennsylvania Academy of Science, Proceedings, v. 45, p. 198. 

SUMMARY: The intertonguing Mount Toby and Turners Falls fanglomerates, sandstones, and mudstones were derived from the east. Sandstone facies 

developed in water depths as shallow as 1.6 em on a paleoslope of 

2.7° with velocities of 100 em/sec. This semi-arid deposition consisted of alluvial, fluvial, flood plain, and lacustrine facies. 

KEYWORDS: sedimentation 

stratigraphy 

GEOGRAPHIC AREA: Hartford Basin, Massachusetts 

1408 F WESSEL, JAMES M., HAND, BRYCE M., AND HAYES, MILES 0., 1967, Sedimen-

_tary features of the Triassic rocks in Northern Massachusetts: ~' 

Robinson, P., ed., Field Trips in the Connecticut Valley Massachusetts, New England Intercollegiate Geological Conference, 59th 

Meeting, p. 154-165. 

SUMMARY: This field trip concerns the alluvial fan deposits of the Mt. Toby 

Conglomerate, the alluvial plain deposits of the Turners Falls Sandstone, and the basalt of the Deerfield diabase. Emphasis is placed 

upon geomorphology of the fan complex, sedimentary structure, and 

provenance. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 

MAPS: Geol: sketch 

Mise: paleocurrent 
1409 p 

Page 473 

WETHERILL, JOHN P., 1827, Observations on the geology, mineralogy, 

etc. of the Perkiomen Lead Mine: in, Pennsylvania Academy of 

Natural Sciences of Philadelphia, Journal, v. 5, p. 305-316. 

SUMMARY: Brief descriptions are given of the character of the lead-zinc vein 

with depth. The vein, which occurs within Triassic red beds, consists of galena, sphalerite, copper sulfide, wulfenite, quartz, and 

barite as well as secondary minerals. A small vein of anthracite 

within sandstone is noted. The vein is described to a depth of 

ninety feet and attains thicknesses of several feet. 

KEYWORDS: economic geology 

lead 

zinc 

silver 

copper 

barite 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

1410 p WHEELER, GIRARD, 1937, The west wall of the New England Triassic lowland: Connecticut Geological and Natural History Survey, Bulletin 58, 

73 p. 

SUMMARY: Detailed geological field studies along the western margin reveal it 

as a faulted and unconformable contact. Relationships of faulting 

to the copper and lead-zinc mineralization at Bristol and Loudville 

are discussed. Causes of deformation and the pre-Newark peneplane 

are outlined, and a broad-terrane regional synthesis is advanced. 

KEYWORDS: structure 

faults 

economic geology 

lead 

zinc 

copper 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Connecticut, Massachusetts 

MAPS: Geol: sketches 
Page 474 

1411 p WHEELER, GIRARD, 1938, Further evidence of a broad-terrane Triassic: 

Journal of Geomorphology, v. 1, p. 140-142. 

SUMMARY: A well at Duck Island along Long Island intersected Triassic red 

beds between 600 and 1050 feet. This evidence for buried sediments 

beneath the Coastal Plain cover provides further evidence that 

Triassic rocks once covered areas between the presently exposed 

basinal remnants. 

KEYWORDS: buried basins 

GEOGRAPHIC AREA: New York (outside of Triassic basin) 

1412 p WHEELER, GIRARD, 1939, Triassic fault-line deflections and associated 

warping: Journal of Geology, v. 47, p. 337-370. 

SUMMARY: A direct relationship is shown to exist between synclinal and anticlinal intrabasinal features and the adjacent border fault morphology. Border fault re-entrants into pre-Triassic rocks are associaated with synclinal warps that are concave toward the fault. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: sketches 

Section: cross sections 

1413 A WHEELER, WALTER H., 1971, A comparison of the parts of the Deep River 

Triassic Basin of North Carolina with other Eastern Triassic basins: 

Pennsylvania Academy of Science, Proceedings, v. 45, p. 196. 

SUMMARY: The basin differs from others by its: greater weathering, negligible topographic effects by igneous rocks, coal beds, playa-type 

limestone and chert, extreme fault splintering along the western 

border, and no lava flows (with one possible exception). 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 
1414 A 

Page 475 

WHEELER, WALTER H., AND TEXTORIS, DANIEL A., 1971, Playa origin of 

Triassic limestone and chert, North Carolina: Geological Society of 

America, Abstracts with Programs, v. 3, p. 360. 

SUMMARY: (See same authors, 1978.) The limestones are dark, micritic, nonporous, pelletoidal, and algal and chemical in origin. Crystalline 

calcite has filled pore spaces; and algal structure, ostracodes, and 

burrows preclude a caliche origin. These central basin playa 

deposits may be correlated with the Cumnock Fm. of the Sanford 

Basin. -

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

1415 p WHEELER, WALTER H., AND TEXTORIS, DANIEL A., 1978, Triassic limestone 

and chert of playa origin in North Carolina: Journal of Sedimentary 

Petrology, v. 48, p. 765-776. 

SUMMARY: 1- to 20-cm thick limestone beds occur in lacustrine mudstone. Beds 

of dense chert up to 60-cm thick occur and developed as inorganic 

silica gel precipitates and as replacements of the limestone - originally a calcareous tufa. These deposits formed about the 

periphery of a 6.5- to 10.5-pH playa lake with Mg/Ca ratios of less 

than 7. This suggests that the basin's environment fluctuated 

between wet (coal-bearing) and dry (limestone, chert, caliche) 

cycles. 

KEYWORDS: sedimentation 

general geology 

GEOGRAPHIC AREA: Durham Basin, North Carolina 

MAPS: Geol: sketches 

DATA: Photos: photomicrographs 
Page 476 

1416 p WHERRY, EDGAR T., 1908, The Newark copper deposits of southeastern 

Pennsylvania: Economic Geology, v. 3, p. 726-738. 

SUMMARY: The copper sulfide and carbonate occurrences (native copper is rare) 

occur within the diabase as gold-bearing chalcopyrite intergrown 

with hornblende, adjacent to diabase in hornfels, and within faults 

that intersect diabase and adjacent sediments. The lead-zinc veins 

within gneiss and red Triassic rocks contain minor copper attributed to ore zoni.ng at depth (gneiss-Pb-Zn) and nearer surface sediments (copper). Sediment-hosted copper occurrences, not associated 

with diabase, also occur. Locations are listed. 

KEYWORDS: economic geology 

copper 

barite 

gold 

lead 

zinc 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geol: sketch 

Mise: locations of occurrences 

1417 p WHERRY, EDGAR T., 1910, Contributions to the mineralogy of the Newark 

Group in Pennsylvania: Wagner Free Institute of Science, Transactions, v. 7, p. 5-27. 

SUMMARY: Studies of the northern edge of the basin south of Jacksonwald indicate the presence of an inner basalt flow and an outer diabase 

intrusive. The petrography of these rocks is outlined. The contact metamorphic effect upon the red sandstone is the conversion of 

calcite to epidote and of hematite to magnetite. Datolite, 

tourmaline, and other secondary minerals associated with the 

extrusive sheet are considered to be of late-stage magmatic origin. 

KEYWORDS: general geology 

basalt 

mineralogy 

petrology 

zeolites 

metamorphism 

hornfels 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Berks Co. 

DATA: Photos: photomicrographs (diabase, basalt) 
1418 p 

Page 477 

WHERRY, EDGAR T., 1912, Age and corr·elation of the "New Red" or Newark 

Group in Pennsylvania: Academy of Natural Sciences of Philadelphia, 

Proceedings, v. 64, p. 373-379. 

SUMMARY: A review of the paleontological composition of the "Newark" rocks 

indicates that they do not represent late Paleozoic deposition 

(first suggested by B.S. Lyman), and that a middle-upper Triassic 

age is indicated. However, lack of fossils in the Brunswick and 

Stockton Fms. indicates that this age may not be representative of 

the entire section. Correlation is made among the Great Britain, 

German, and Newark units. 

KEYWORDS: paleontology 

general geology 

stratigraphy 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

1419 p WHERRY, EDGAR T., 1912, Silicified wood from the Triassic of Pennsylvania: Academy of Natural Sciences of Philadelphia, Proceedings, v. 

64, p. 366-372. 

SUMMARY: Silicified wood fragments occur along the southern basin margin in 

the arkosic sandstones and conglomerates (Stockton Fm.). Several 

species are described in detail. Nineteen localities are noted. 

KEYWORDS: paleontology 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

DATA: Photos: photomicrographs 

1420 p WHERRY, EDGAR T., 1913, North border relations of the Triassic in 

Pennsylvania: Academy of Natural Sciences, Philadelphia, Proceedings, 

v. 65, p. 114-125. 

SUMMARY: The geological relations of the conglomeratic units and the preTriassic rocks along the northern margin are discussed, and it is 

determined that the basin margin represents an unconformity, 

although local faults are evident. Glaciation in the adjacent 

Appalachian Mountains resulted in the coarse fanglomerate deposits. 

KEYWORDS: structure 

sedimentation 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania 

MAPS: Geol: sketch 
Page 478 

1421 p WHERRY, EDGAR T., 1916, Glauberite crystal-cavities in the Triassic 

rocks of Eastern Pennsylvania: American Mineralogist, v. 1, p. 37-43. 

SUMMARY: Glauberite crystal casts, partially replaced by calcite, are 

described from near Steinsburg and Spinnerstown and occur in the 

Brunswick and Lockatong Fms. but not the Stockton Fm. New Jersey 

localities are also described. An arid climate characterized by 

rapid evaporation of lakes is considered to result in the formation 

of glauberite. The presence of halite and not glauberite in the 

Hartford Basin is attributed to different river water composition. 

KEYWORDS: mineralogy 

sediments 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks County 

DATA: Photos: specimens 

1422 p WHERRY, EDGAR T., 1916, The Lozenge-shaped cavities in the First 

Watchung Mountain zeolite deposits: Washington Academy of Science, 

Journal, v. 6, p. 181-184. 

SUMMARY: Rectangular and diamond-shaped crystal cavities in shales and in the 

zeolites, now partly replaced by secondary minerals, are shown 

morphologically to represent glauberite and not babingtonite or 

anhydrite. 

KEYWORDS: sediments 

basalt 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

1423 PM: WHERRY, EDGAR T., 1941, Triassic system: in, Miller, B.L., ed., 

Lehigh County Pennsylvania Geology and Geography, Pennsylvania Geological Survey, Fourth Series, Bulletin C39, p. 231-236. 

SUMMARY: Brunswick shale and conglomerate, the latter comprised of both limestone and quartzite clasts, occur in the southern part of the 

county. Diabase intrusions occur, but do not significantly alter 

the sediments. The northern margin of the basin is considered an 

unconformable contact. Gentle folding of the strata, with fold axes 

perpendicular to the basin trend, has occurred. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Lehigh County 

MAPS: Geol: [1:62,500] 
Page 479 

1424 p WHITCOMB, L., AND ENGEL, J.A., 1934, The probable Triassic age of the 

Spitzenberg conglomerate, Berks County, Pa.: Pennsylvania Academy of 

Science, Proceedings, v. 8, p. 37-43. 

SUMMARY: A small synclinal hill exposes poorly sorted limestone and sandstone 

conglomerate as well as cross-bedded sandstone above the Martinsburg 

Fm. Analysis of the limestone clasts indicates that they are not 

Cambro-Ordovician in age derived, like the Martinsburg, from the 

southeast. This, in addition to the rocks' similarity with Newark 

Group fanglomerates, indicates the hill may represent a Triassic 

erosional remnant. (The area is now considered the Juniata Fm. of 

Ordovician age.) 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Berks County, Pennsylvania, Hamburg Quadrangle 

1425 p WHITCOMB, LAWRENCE, 1942, Spitzenberg conglomerate as a Triassic outlier in Pennsylvania: Geological Society of America, Bulletin, v. 53, 

p. 755-764. 

SUMMARY: At Greenawald, 2.5 miles northeast of Lenhartsville, beds of gray to 

red arkose and conglomerate occur capping a hill. Although no 

fossils occur, possible source rocks are present, younger than the 

Martinsburg Fm., in which this presumed Triassic outlier occurs. 

(This area is now considered the Juniata Fm. of Ordovician age.) 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Berks County, Pennsylvania 

DATA: Photos: outcrops 

1426 P : WHITE, WILLIAM A., 1950, Blue Ridge front -a fault scarp: Geological 

Society of America, Bulletin, v. 61, p. 1309-1346. 

SUMMARY: Detailed studies of the fault zone from Georgia to New Jersey indicate that it is a Late Tertiary normal fault rejuvenated along a 

pre-existing Triassic fault zone. Many of the exposed Triassic 

basins occur adjacent to the fault scarp. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: sketches 
1427 T 

Page 480 

WHITEHEAD, J.W., 1962, The petrology of the Sanford Basin Triassic 

sediments, North Carolina: M.S. Thesis, University of Missouri, 174 

p. 

KEYWORDS: sedimentation 

sediments 

petrology 

GEOGRAPHIC AREA: Sanford Basin, North Carolina 

1428 p WHITEHEAD, W.L., 1916, The paragenesis of certain sulphide intergrowths: Economic Geology, v. 11, p. 1-13. 

SUMMARY: Textural examination of the chalcocite-bornite intergrowths from the 

Bristol Mine, along with published experimental data, indicates that 

the Bristol chalcocite formed below 91°C. The genesis of the 

deposit is directly related to 11 effusion 11 of diabase near the 

surface at temperatures between 100°C and 250°C. It is concluded 

that th~ chalcocite is later than the primary mineralization and 

that it formed from the action of colder, descending solutions. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Hartford Basin, Connecticut 

DATA: Photos: chalcocite and bornite photomicrographs 

1429 p WHITLOCK, HERBERT P., 1930, A study of the crystallography of the 

calcites of the New Jersey diabase region: American Museum of Natural 

History, Bulletin 56, p. 351-377. 

SUMMARY: This is a detailed study of the crystallography of the calcite from 

the zeolite occurrences in basalt and diabase. Crystal drawings and 

stereographic projections are presented. It is concluded that solutions depositing secondary calcite in diabasic rocks produce a prevailing crystal habit - primarily the negative rhombohedron 

(0443). 

KEYWORDS: basalt 

diabase 

mineralogy 

zeolites 

GEOGRAPHIC AREA: Newark Basin, New Jersey 
Page 481 

1430 A WHITTINGTON, DAVID, AND RAGLAND, PAUL C., 1983, Tectonic implications 

of an apparent Mesozoic radial diabase dike swarm centered in the 

vicinity of Charleston-Georgetown, South Carolina: Geological Society 

of America, Abstracts with Programs, v. 15, p. 92. 

SUMMARY: Paleomagnetically, the radial swarm is younger than the typical 

NW-trending dikes of the southern Appalachians, and the former 

contain higher abundances of LIL elements and higher silicasaturation. It is proposed that the NW set may represent 11Cratonal 

rifting of Pangea whereas the radial swarm may represent a later 

stage of spreading ... Dextral shear followed by sinistral shearing 

between Africa and N. America would not produce the observed set 

duality. 

KEYWORDS: tectonics 

diabase 

GEOGRAPHIC AREA: Regional 

1431 p WIDMER, KEMBLE, 1965, Geology and ground water resources of Mercer 

County: New Jersey Geological Survey, Geologic Report Series No. 7, 

115 p. 

SUMMARY: The geology of the Brunswick, Lockatong, and Stockton Fms., and 

diabase is outlined, and well data (excluding chemistry) is presented in tabular form by township. Average yields for the four 

units above are: 15, 9, 20, and 9 gpm (domestic), and 110, 32, 147, 

no wells (gpm industrial), respectively. 

KEYWORDS: general geology 

hydrology 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Mercer County 

MAPS: Geol: (no scale given) 

Section: geologic cross sections 

Mise: well locations 

1432 M WIER, K., 1977, Preliminary geology of the Richardsville and a portion 

of the Midland Quadrangles, Fauquier, Culpeper, and Stafford Counties, 

Virginia: U.S. Geological Survey Open-File Report 77-699. 

KEYWORDS: general geology 

bedrock geology 

structure 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geol: [1:24,000] (in 4 sheets) 
Page 482 

1433 F WILKES, GERALD P., 1982, Geology and mineral resources of the Farm-, 

ville Triassic Basin, Virginia: Virginia Minerals, v. 28, p. 25-32. 

SUMMARY: The basin is bounded by a steep western normal fault and a shallower 

eastern border fault and contains a western boulder breccia and 

cobble and pebble conglomerates, a northern arkosic conglomerate, an 

eastern arkosic sandstone, and a central gray, black, green, and red 

shale-mudstone unit with coal measures. Coal mining history is outlined, and a road-log is provided to key outcrops. 

KEYWORDS: general geology 

economic geology 

coal 

GEOGRAPHIC AREA: Farmville Basin, Virginia 

MAPS: Geol: sketches 

1434 A WILKES, GERALD P., AND LASCH, DAVID K., 1979, The Farmville Triassic 

Basin: an integrated geological/geophysical study: Virginia Journal 

of Science, v. 30, no. 2, p. 81. 

SUMMARY: Traverses perpendicular to the strike of the Triassic sediments were 

conducted along U.S. Rt. 60 and St. Rd. 636. The profiles imply a 

complex fault system associated with paleodeposition. In addition 

to the western, high-angle border fault, the profiles indicate the 

presence of faults along the eastern margin of the basin. 

KEYWORDS: geophysics 

gravity 

structure 

GEOGRAPHIC AREA: Farmville Basin, Virginia 
Page 483 

1435 PM: WILLARD, B., AND OTHERS, 1959, Geology and mineral resources of Bucks 

County, Pennsylvania: Pennsylvania Geological Survey, Bulletin C9, 

243 p. 

SUMMARY: Discussion of the Mesozoic rocks is presented by D.B. Mclaughlin and 

includes detailed descriptions of the distribution, structure, 

petrography, and type sections of the Stockton, Lockatong, and 

Brunswick Formations. E.T. Wherry presents the paleontology (primarily plants), and J.D. Ryan discusses diabase petrography. A 

small basalt flow is present at Jacksonwald. Barite, ·lead-zinc, and 

copper occurrences are outlined. 

KEYWORDS: general geology 

economic geology 

barite 

copper 

lead 

zinc 

structure 

paleontology 

diabase 

basalt 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co. 

MAPS: Geol: [1:62,500] (1), and local sketch maps 

1436 P : WILLARD, BRADFORD, 1956, Triassic fanglomerate provenance: 

Pennsylvania Academy of Science, Proceedings, v. 30, p. 157-162. 

SUMMARY: Unlike the majority of fanglomerates whose provenance was local, the 

Pebble Bluffs fanglomerate just east of the Delaware River derived 

its clasts from the Silurian Decker and Green Pond Formations which 

are present to the NE along the Green Pond Mountain syncline. It is 

suggested that the syncline may have extended farther to the SW and 

that the fanglomerates may have transgressed north of the border 

fault. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

1437 M: WILLARD, MAX E., 1951, Bedrock geology of the Mount Toby Quadrangle, 

Massachusetts: U.S. Geological Survey, Geologic Quadrangle Map GQ-8. 

KEYWORDS: general geology 

economic geology 

lead 

zinc 

barite 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts, Hampshire Co., Franklin Co. 

MAPS: Geol: [1:31,680] 
Page 484 

1438 M : WILLARD, MAX E., 1952, Bedrock geology of the Greenfield quadrangle, 

Massachusetts: U.S. Geological Survey, Geologic Quadrangle Map GQ-20. 

KEYWORDS: general geology 

economic geology 

copper 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts, Franklin Co. 

MAPS: Geol: [1:31,680] 

1439 M: WILLARD, MAX E., 1956, Bedrock geology of the Williamsburg Quadrangle, 

Massachusetts: U.S. Geological Survey, Geologic Quadrangle Map GQ-85. 

KEYWORDS: general geology 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts, Franklin Co., Hampshire Co. 

MAPS: Geol: [1:31,680] 

1440 A WILLARD, MAX EMERY, 1941, Triassic floor of deposition north of 

Holyoke Range, Massachusetts: Geological Society of America, 

Bulletin, v. 52, p. 1940-1941. 

SUMMARY: An intra-basin N-trending buried fault occurs through(?) North 

Sunderland and divides the basin into a western, deeper, earlier 

sub-basin, and a later eastern basin characterized by a shallow 

pre-Triassic floor and the Mount Toby Conglomerate and Leverett 

breccia. 

KEYWORDS: structure 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Massachusetts 

1441 T WILLIAMS, GERALD, 1979, Transition from ductile to brittle deformation 

at the head of the Deerfield Basin, Bernardston-Leyden area, Massachusetts: M.S. Thesis, University of Massachusetts, 106 p. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Deerfield Basin, Massachusetts 
1442 A 

Page 485 

WILSON, ERNEST H., 1919, Barite from Great Notch, N.J.: American 

Mineralogist, v. 4, no. 1, p. 4. 

SUMMARY: The author describes a specimen of basalt from the quarry on which 

small barite crystals occur, suggesting that the mineral formed 

early in the zeolite paragenesis. Calcite and prehnite crystals 

occur on the barite. 

KEYWORDS: mineralogy 

basalt 

GEOGRAPHIC AREA: Newark Basin, New Jersey, Passaic County 

1443 p WILSON, WILLIAM F., AND CARPENTER, P. ALBERT, III, 1975, revised 1981, 

Region J Geology: a guide for North Carolina mineral resource 

development and land use planning: North Carolina Geological Survey 

Section, Regional Geological Series 1, 45 p. 

SUMMARY: The characteristics of the Sanford, Cumnock, and Pekin Formations, 

and the quality of ground water in the Triassic rocks are summarized. Mineral resources in the basin include coal, crushed stone, 

and clay and shale. 

KEYWORDS: hydrology 

general geology 

economic geology 

coal 

GEOGRAPHIC AREA: Deep River Basin, North Carolina 

MAPS: Geol: bar scale only 

Mise: (nonmetallic mineral deposits) 
1444 p 

Page 486 

WISE, D.U., 1982, New fault and fracture domains of southwestern New 

England -hints on localization of the Mesozoic basins: in, 

Farquhar, O.C., ed., Geotechnology in Massachusetts, 1980-,-University 

of Massachusetts Graduate School, p. 447-453. 

SUMMARY: The distribution of SW New England joint systems and topographic 

lineament swarms is discussed. A 50-km wide domain of strike-slip 

and oblique-slip motions projects into the Newark Basin, is superimposed upon the N-trending Berkshires grain, and includes the 

Hartford, Pomperaug, and Deerfield Basins. This ductile region 

represents the late Paleozoic Appalachian core region, and it localized the Mesozoic basins. 

KEYWORDS: structure 

faults 

tectonics 

GEOGRAPHIC AREA: Regional 

MAPS: Mise: joint sets; lineaments 

1445 A WISE, D.U., HOZIK, M.J., GOLDSTEIN, A.G., AND PIEPUL, R.G., 1975, 

Minor fault motions in relation to Mesozoic tectonics of Southern New 

England: American Geophysical Union, Transactions, v. 56, p. 451. 

SUMMARY: The Conn. Valley displays a pervasive N 30°E joint and fault grain. 

N 60°W crustal extension developed upon a previous N-S grain which 

localized the Mesozoic graben. Normal minor-faults occur where the 

basin margin fault trends N 30°E. Where the basin trends N-S, 

right-lateral motions and other complex movement occurs. 

KEYWORDS: structure 

faults 

GEOGRAPHIC AREA: Hartford Basin, Connecticut, Massachusetts, Rhode Island 

1446 A WISE, DONALD U., 1980, Discovery of a Mesozoic strike-slip fault 

domain extending at least 100 km northeast of the Newark Basin: Geological Society of America, Abstracts with Programs, v. 12, p. 89-90. 

SUMMARY: A 50-km wide zone of left-lateral strike slip motions superimposed 

upon the N-S tectonic regional grain extends along the NE projection 

of the Newark Basin and is Jurassic or younger in age. Within the 

Hartford (?) Basin a pattern of small-scale extensile faults occurs 

(sigma 2 = N 30°E). Other joint and fault patterns of the region 

are outlined. 

KEYWORDS: structure 

tectonics 

GEOGRAPHIC AREA: Newark Basin, Hartford Basin, New Jersey, Connecticut 
Page 487 

1447 A WISE, DONALD U., AND ROBINSON, PETER, 1982, Tectonics of the Mesozoic 

Connecticut Valley graben: Geological Society of America, Abstracts 

with Programs, v. 14, p. 96. 

SUMMARY: Oblique N 65°W Mesozoic extension resulted in an echelon pair of 

basins (Hartford-Deerfield) separated by the Amherst horst. Among 

other structural complexities, left-lateral displacements in 

response to N-S compression account for the locus of the deepest 

basin areas, the arcuate basalt ranges, and the rotation of the 

Farmington block. Other regional strike-slip motions are attributed 

to pre-Triassic crustal inhomogeneity. 

KEYWORDS: structure 

tectonics 

GEOGRAPHIC AREA: Hartford Basin, Deerfield Basin, Massachusetts, Connecticut 

1448 M WISE, M.A., AND JOHNSON, S.S., 1980, Simple Bouger gravity anomaly map 

of the Culpeper Basin and vicinity, Virginia: Virginia Division of 

Mineral Resources, Publication 24. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Geophys: gravity [1:125,000] 

1449 PM: WOOD, CHARLES R., 1980, Groundwater resources of the Gettysburg and 

Hammer Creek Formations, Southeastern Pennsylvania: Pennsylvania 

Geological Survey, Fourth Series, Water Resources Report 49, 87 p. 

SUMMARY: Median yields are: Hammer Creek Fm. (shale - 144, quartz conglomerate- 120, and sandstone- 90 gpm), and Gettysburg Fm. (Middletown 

area shale - 185, other shale - 74, limestone conglomerate - 85, 

sandstone - 50, and quartz conglomerate - 21 gpm). The pH is low in 

sandstone and conglomerate, water is of the calcium bicarbonate 

type; and, except for zinc, trace element concentrations are very 

low. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Gettysburg Basin, Newark Basin, Pennsylvania 

MAPS: Geol: [1:50,000] (in 3 parts) 

Mise: well locations; 1:250,000 groundwater hardness 

DATA: Chern. (type of data): water 
1450 p 

Page 488 

WOOD, PERRY R., AND JOHNSTON, HERBERT E., 1964, Hydrology of the New 

Oxford Formation in Adams and York Counties, Pennsylvania: Pennsylvania Geological Survey, Fourth Series, Ground Water Report W21, 66 

p. 

SUMMARY: Water chemistry, well depths and yields, and the general geology of 

the fm. are discussed. Seventy percent of the wells have yields 

under 10 gpm, with fifteen percent yielding over 20 gpm. Median 

values for some elements are (in ppm): Si - 20, Ca- 43, bicarbonate- 145, sulfate- 27, nitrate- 27, Mg- 12. Values of pH range 

from 5.7 to 7.8. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Gettysburg Basin, Pennsylvania 

DATA: Chern. (type of data): water 

1451 p WOODWARD, HERBERT P., 1944, Copper mines and mining in New Jersey: 

New Jersey Department of Conservation and Development, Geologic 

Series, Bulletin 57, 156 p. 

SUMMARY: This extensive work describes the mining history and deposit of the 

major Triassic occurrences including the Schuyler, East Orange, 

American, Menlo Park, Flemington, and Griggstown Mines. Chalcopyrite is the dominant ore mineral adjacent to intrusives, with 

chalcocite and native copper more abundant distally. Deposits occur 

adjacent to and above diabase but below basalt units. Depositional models are discussed and a magmatic source is favored. 

KEYWORDS: economic geology 

copper 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: Geol: sketches 
Page 489 

1452 p WOODWORTH, JAY BACKUS, 1902, The Atlantic Coast Triassic coal field: 

U.S. Geological Survey, 22nd Annual Report, pt. 3, p. 25-53. 

SUMMARY: The stratigraphy, structure, mining methods, and character of the 

coal are outlined for the four basin areas. Coal beds in the 

Richmond area occur near the base of the basin, are commonly several 

to as much as 20-feet thick and are bituminous with coke occurring 

adjacent to diabase. Coal seams ·n other basins are generally 

thinner. 

KEYWORDS: economic geology 

coal 

GEOGRAPHIC AREA: Richmond Basin, Farmville Basin, Virginia; Deep River Basin, 

Dan River Basin, North Ca olina 

MAPS: Geol: (bar scale) Richmond Basin; s etches 

Section: columnar sections 

Mise: mines 

1453 P WOOLLARD, G.P., BONINI, W.E., AND ME ER, R.P., 1957, A seismic refraction study of the sub-surface geol gy of the Atlantic Coastal Plain 

and continental shelf between Virg'nia and Florida: University of 

Wisconsin, Department of Geology, eophysics Section, 128 p. 

SUMMARY: Seismic data, in conjunction with well information, indicate the 

presence of buried Triassic basin • These include: just east of 

Petersburg, Va.; an extension of he Florence Basin into Lee County, 

S.C.; Lakewood, N.J.; Hoke County, N.C.; Worcester and Wicomico 

Counties, Md.; Bowling Green, Ash and, and Doswell, Va.; Elizabeth 

City, N.C.; and large areas in Fl rida and Georgia. The occurrence 

of such basins is considered exte sive and susceptible to seismic 

misinterpretation. 

KEYWORDS: buried basins 

geophysics 

seismic profiles 

GEOGRAPHIC AREA: Regional 

MAPS: Geophys: seismic profiles 
1454 p 

Page 490 

WOOLLARD, GEORGE P., 1941, Geophysical methods of exploration and 

their application in geological problems in New Jersey: New Jersey 

Department of Conservation and Development, Bulletin 54, 89 p. 

SUMMARY: Included among the geophysical studies are a magnetic survey 

delineating the extension of the Rocky Hill diabase and the 

Palisades Sill and the structure of the Triassic in the Plainsboro 

Area (Mercer County) by seismic survey. 

KEYWORDS: geophysics 

magnetism 

seismic profiles 

GEOGRAPHIC AREA: Newark Basin, New Jersey 

MAPS: 

1455 p 

Section: 

Geophys: 

geologic cross section (Plainsboro) 

seismic stations (Plainsboro); gravity profiles across Rocky 

Hill diabase 

y 

YARE, B.S., 1969, Orientation of phenoclasts in a conglomerate deposit 

from the north border of the Newark-Gettysburg Basin: Pennsylvania 

Academy of Science, Proceedings, v. 43, p. 166-168. 

SUMMARY: Dip magnitude measurements of pebbles within the border conglomerates indicate a mudflow origin. 

KEYWORDS: sedimentation 

GEOGRAPHIC AREA: Newark Basin, Gettysburg Basin, Pennsylvania 

1456 A YEWISIAK, PAUL P., 1970, Geology of the Culpeper Triassic Basin, 

Virginia: Geological Society of America, Abstracts with Programs, v. 

2, p. 250. 

SUMMARY: Uniform westward dips, the western border fault with associated conglomerates, and absence of transected Triassic structures support a 

half-graben theory. Study of border conglomerates suggests several 

source areas and deposition centers, with Catoctin greenstone the 

predominant component. 

KEYWORDS: general geology 

sedimentation 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 
1457 p 

Page 491 

YOUNG, R.S., AND EDMUNDSON, R.S., 1954, Oolitic limestone in the 

Triassic of Virginia: Journal of Sedimentary Petrology, v. 24, p. 

275-279. 

SUMMARY: A six- to nine-inch bed of limestone within gray-green shales of the 

Manassas sandstone is composed of calcite, illite, chlorite, and 

talc. Heavy mineral investigation indicates an eastern source area. 

The oolitic (1-mm diam.) limestone represents shallow, fresh water, 

local lacustrine deposition indicated by mudcracks. Euhedral pyrite 

replaces the oolites. (The bed occurs along the E face of a quarry 

3.5 mi east of Culpeper on Va. Rt. 3.) 

KEYWORDS: sedimentation 

sediments 

petrology 

mineralogy 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Culpeper Co., Culpeper East Quad. 

DATA: Photos: outcrops; photomicrographs 

1458 T 

z 

ZABLOCKI, FRANKS., 1959, A gravity study in the Deep River-Wadesboro 

Triassic Basin of North Carolina: M.S. Thesis, University of North 

Carolina. 

KEYWORDS: geophysics 

gravity 

GEOGRAPHIC AREA: Deep River Basin, Wadesboro Basin, North Carolina 

1459 M ZENONE, CHESTER, AND LACZNIAK, R.J., 1984, Ground-water resources of 

the Culpeper Basin, Virginia and Maryland: simulation of the groundwater system: U.S. Geological Survey Miscellaneous Inves~igations 

Report I-1313-F. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia, Maryland 

MAPS: Mise: hydrology [1:125,000] 
1460 M 

Page 492 

ZENONE, CHESTER, AND LARSON, J.D., 1982, Ground-water resources of 

Fairfax County and vicinity, Va., and some aspects of their development: U.S. Geological Survey Miscellaneous Investigations Map 

MI-1473. 

KEYWORDS: hydrology 

GEOGRAPHIC AREA: Culpeper Basin, Virginia 

MAPS: Mise: hydrology [1:48,000] 

1461 p ZIEGLER, DANIEL G., 1983, Hydrocarbon potential of the Newark rift 

system: Eastern North America: Northeastern Geology, v. 5, p. 

200-208. 

SUMMARY: It is shown that all factors involving the source, explusion, 

migration, and accumulation of hydrocarbons in the basins are 

satisfied and similar to other world rift basins that have produced 

oil. Oil has been recovered in the Richmond and Sanford Basins as 

well as southern buried basins. An intensive, more thorough 

exploration is suggested. 

KEYWORDS: economic geology 

oil 

GEOGRAPHIC AREA: Regional 

MAPS: Geol: sketches 

1462 p ZIETZ, ISIDORE, AND GRAY, CARLYLE, 1960, Geophysical and geological 

interpretation of the Triassic structure in Eastern Pennsylvania: 

U.S. Geological Survey Professional Paper 400-B, p. B174-B178. 

SUMMARY: Aeromagnetics across the Buckingham horst in eastern Bucks County 

reveals a magnetic high corresponding to the Furlong Fault which 

bounds the southern end of the horst and has a 3000-foot displacement. SE of the fault, the horst basement rocks dip SE, not NW as 

on the fault's NW side. A vertical, narrow, magnetite-rich body may exist at depth and about 1000 feet NW of the Furlong Fault. 

KEYWORDS: geophysics 

aeromagnetism 

structure 

economic geology iron 

GEOGRAPHIC AREA: Newark Basin, Pennsylvania, Bucks Co. 

MAPS: Geophys: aeromagnetic; profiles 

*U.S. GOVERNMENT PRINTING OFFICE: 1986-181-407:40040