bluuebunny/crossref_metadata_2025 huggingface dataset:
Molecules implicated in glucose homeostasis are differentially expressed in the trachea of lean and obese Zucker rats
Authors: Merigo F. , Boschi F. , Lasconi C. , Benati D. , Sbarbati A.
Published: February 2016

Recent studies indicate that the processes mediated by the (T1R2/T1R3) glucose/sugar receptor of gustatory cells in the tongue, and hormones like leptin and ghrelin contribute to the regulation of glucose homeostasis. Altered plasma levels of leptin and ghrelin are associated with obesity both in humans and rodents. In the present study, we evaluated the ultrastructure of the mucosa, and the expression of molecules implicated in the regulation of glucose homeostasis (GLUT2, SGLT1, T1R3, ghrelin and its receptor) in the trachea of an animal model of obesity (Zucker rats). We found that the tracheal epithelium of obese animals was characterized by the presence of poorly differentiated cells. Ciliated and secretory cells were the cell lineages with greatest loss of differentiation. Severe epithelial alterations were associated with marked deposit of extracellular matrix in the lamina propria. The expression pattern of GLUT2 and SGLT1 glucose transporters was similar in the trachea of both the Zucker rat genotypes, whereas that of T1R3 was reduced in ciliated cells of obese rats. A different immunolocalization for ghrelin was also found in the trachea of obese rats. In conclusion, the tracheal morphological alterations in obese animals seem to compromise the expression of molecules involved in the homeostasis of glucose.
Elemental analysis of histological specimens: a method to unmask nano asbestos fibers
Authors: Scimeca M. , Pietroiusti A. , Milano F. , Anemona L. , Orlandi A. , Marsella L.T. , Bonanno E.
Published: February 2016

There is recent mounting evidence that nanoparticles may have enhanced toxicological potential in comparison to the same material in the bulk form. The aim of this study was to develop a new method for unmask asbestos nanofibers from Formalin-Fixed, Paraffin-Embedded tissue. There is an increasing amount of evidence that nanoparticles may enhance toxicological potential in comparison to the same material in the bulk form. The aim of this study was to develop a new method to unmask asbestos nanofibers from Formalin-Fixed Paraffin-Embedded (FFPE) tissue. For the first time, in this study we applied Energy Dispersive X-ray (EDX) microanalysis through transmission electron microscopy to demonstrate the presence of asbestos nanofibers in histological specimens of patients with possible occupational exposure to asbestos. The diagnostic protocol was applied to 10 randomly selected lung cancer patients with no history of previous asbestos exposure. We detected asbestos nanofibers in close contact with lung cancer cells in two lung cancer patients with previous possible occupational exposure to asbestos. We were also able to identify the specific asbestos iso-type, which in one of the cases was the same rare variety used in the workplace of the affected patient. By contrast, asbestos nanofibers were not detected in lung cancer patients with no history of occupational asbestos exposure. The proposed technique can represent a potential useful tool for linking the disease to previous workplace exposure in uncertain cases. Furthermore, Formalin-Fixed Paraffin-Embedded (FFPE) tissues stored in the pathology departments might be re-evaluated for possible etiological attribution to asbestos in the case of plausible exposure. Since diseases acquired through occupational exposure to asbestos are generally covered by workersâ€™ insurance in most countries, the application of the protocol used in this study may have also relevant social and economic implications.Â
Bioprinting in Regenerative Medicine
Authors: Monti Manuela
Published: February 2016

Prof. Turksen is a very well known scientist in the stem cell biology field and he is also internationally known for his fundamental studies on claudin-6. In addition to his research activity he is editor for the Stem Cell Biology and Regenerative Medicine series (Humana Press) and editor-in-chief of Stem Cell Reviews and Reports.....
Middle Callovian sedimentary rocks and guide ammonites from southwestern British Columbia
Authors: Frebold H , Tipper H W
Published: February 2016

The presence of middle Callovian rocks and guide ammonites is established in the Harrison Lake, Taseko Lakes, and Nechako River areas of southwestern British Columbia. Deposits of this age are not known from other parts of Canada except from Vancouver Island.
Although lower Callovian beds are widely distributed in the Rocky Mountains, the Canadian Arctic, and Queen Charlotte Islands, such beds have so far not been identified in those areas where middle Callovian is present.
Stratigraphy and spore assemblages, Moncton map - area, New Brunswick
Authors: Carr P A
Published: February 2016

Geological studies and spore determinations in Moncton map-area have shown the need for clarification and modification of stratigraphic terms long in use in this area. Four of the seven mainly Carboniferous units above the Basement Complex - the Memramcook, Boss
Point, Salisbury, and Richibucto Formations - are time -transgressive, so that it seems advisable to stop using the terms Pictou, Riversdale, and Horton in this area, because of their time -stratigraphic aspect. Additionally, the writer advocates dropping the name 'Scoudouc Formation', because the
rocks in the lower half of this unit have now been included in the Salisbury Formation, and the upper half in the Richibucto Formation. The spore determinations reveal that the Memramcook Formation ranges from latest Devonian to earliest Mississippian time; the Boss Point Formation in New Brunswick
ranges from Namurian to Westphalian B age; the Salisbury Formation ranges from Westphalian C to Stephanian age; and the Richibucto Formation ranges from Westphalian D to Stephanian age . The names, ages, and locations of the spore samples identified are given in an appendix to this
report.
Conodont zonation, waterways formation (Upper Devonian), northeastern and central Alberta
Authors: Uyeno T T
Published: February 2016

Two conodont zones are recognized in the Waterways Formation of northeastern and central Alberta. Conodonts of the lower two members of this formation, the Firebag and Calumet, may be assigned to the Lower Polygnathus asymmetrica Zone (toIx of German sequence),
and those of the upper three members, the Christina, Moberly, and Mildred, to the Middle Polygnathus asymmetrica Zone (toIx). Both zones are defined in the Rhenish Schiefergebirge of Germany, and are the lowermost Upper Devonian conodont zones of the Manticoceras -Stufe.
Only platform and some blade-like conodonts are considered in this study. They consist of 28 species and 5 subspecies, referable to 10 genera. Six new taxa are described and illustrated, of which the following are formally named: Ancyrodella rotundiloba binodosa, Nothognathella klapperi, Polygnathus
incompleta, and Polygnathus norrisi.
New occurrences of jurassic rocks and fossils in central and northern Yukon Territory
Authors: Frebold H , Tempelman-Kluit D J , Mountjoy E W
Published: February 2016

This report presents new information on the stratigraphy of marine Jurassic rocks in parts of central and northern Yukon. The presence of these rocks indicates that the Jurassic sea that invaded northern Yukon and northern Alaska extended at least temporarily
into the Keele Range and Charley River area, and covered regions that hitherto had been considered to be land during Jurassic times. A southward temporary extension of this Arctic transgression to the sea in southern Alaska is considered possible. The report contains systematic descriptions of many
of the more important guide fossils and a discussion of age and correlation based on the ammonite faunas.
Published references to champlain sea Faunas 1837-1966 and list of fossils
Authors: Wagner F J E
Published: February 2016

All published references to the faunas of the Pleistocene Champlain Sea are presented and are followed by an alphabetical list of fossil names and name changes.
Vanadium occurrences in Canada
Authors: Rose E R
Published: February 2016

The general nature of vanadium, its uses, occurrences , and types of occurrence are outlined. Methods of identification and a field chemical test for vanadium are described . By means of the latter it has been shown that vanadium is of more widespread occurrence
in Canadian rocks than hitherto recognized. The world outlook for vanadium is summarized, and potential sources of vanadium are described by provinces and territories.
Groundwater resources of Steinbach area, Manitoba, (Townships 1 to 12, Ranges 6 to 11, east of Principal Meridian)
Authors: Charron J E
Published: February 2016

This groundwater study of the Steinbach area, carried out during the summer of 1963, is the fifth on the hydrogeology of the Red River valley in Manitoba. Data on more than 2, 600 wells were collected to be scrutinized for analysis.
The study has shown that on the whole the area is a recharge area and that it has a good potable supply of hard water. It proves on the basis of topography, discharge zones, and the hydrochemistry of the groundwater, that in general, the groundwater movement is in a westward direction. It also
establishes that flowing artesian zones "undermine" themselves.
The Geology of part of the continental slope near Sable Island, Nova Scotia
Authors: Marlowe J I
Published: February 2016

Core and dredge samples and echo-sounding records from part of the continental slope east of Sable Island provide data on the bottom sediment, geomorphology, and geologic structure of the area. A large canyon (The Gully) adjacent to Sable Island is of special
interest. Topographic benches occur on the continental slope and in The Gully. A comparison of topographic profiles from this area with profiles from elsewhere along the east coast of North America suggests that the topographic benches reflect the presence of outcropping bedrock formations.
Unconsolidated sediment on the continental shelf consists mainly of sand and gravel, while sediment on the continental s lope is predominantly mud. Thin layers of sand occur in some cores from the continental slope and suggest that sand from the shelf is periodically transported downslope into
deeper water. Resistant, compact siltstone and sandstone occur at some localities in The Gully. Foraminifera indicate that some of the siltstone may be as old as Miocene. Other compact sediments are lithologically similar to formations that occur in Georges Bank.
Geology of the Bruce Peninsula, Ontario
Authors: Liberty B A
Published: February 2016

Upper Ordovician, Silurian, and Middle Devonian rocks on the Bruce Peninsula are subdivided into 13 map-units. Brief, lithic descriptions of and nomenclature for the formations are presented. Thirteen two-tone map-sheets on the scale of 1 inch to 1 mile accompany
the report.
Illustrations of canadian fossils upper cretaceous and Paleocene Plants of western Canada
Authors: Bell W A
Published: February 2016

Illustrates some of the more complete and r ecognizable megaplants from Upper Cretaceous and Paleocene of Western Canada. They r epres ent four successive plant assemblages or floras, which, in conjunction with associated and intervening faunal a ssemblages ,
permit age correlations of rock units within a province or re gion, and gene ralized age assignments in the European geological time-scale, such as : Cenomanian; Santonian-Campanian; Mae str ichtian; Danian-Thanetian. 97819-
Geological notes on operation Wager, Northwest Territories
Authors: Heywood W W
Published: February 2016

This report describes the results of a reconnaissance geological survey carried out in northwestern District of Keewatin and southern Melville Peninsula, D istrict of Franklin. Although the oldest rocks are probably metamorphosed volcanics and sediments , more
than 70 per cent of the area i s underlain by granitic and gneissic rocks. Peridotite, pyroxenite , and serpentinite occur in and near the metasediments and metavolcanics and a few diorite and gabbro plugs were seen. Diabase dykes intrude all Precambrian rocks but do not intrude the Ordovician and
Silurian sandstones and dolomites that outcrop here and there in the northern, northeastern and southeastern parts of the mapped area.
Interbasinal groundwater flow, Oak River, Manitoba
Authors: Lissey A , Wyder J E
Published: February 2016

A successful combination of geophysical and geohydrological techniques has been used to demonstrate the fact t.hat groundwater can flow between the Salt Lake and Oak River drainage basins in Manitoba.
Bella Coola and Laredo Sound map - Areas, British Columbia, 93d and 103a
Authors: Baer A J
Published: February 2016

Bella Coola and Laredo Sound map-areas cross the Coast Mountains of British Columbia between latitudes 52° and 53° N. They are underlain mainly by plutonic and metamorphic rocks. In the east half of Bella Coola map-area, volcanic rocks of andesitic
composition form three units : Lower Jurassic and older; Middle Jurassic; and Upper Cretaceous ( ?). Only the Middle Jurassic strata have yielded fossils. Plutonic rocks include gabbro, diorite, quartz diorite, granodiorite, quartz monzonite, and granite. Some of them are pre-Middle Jurassic, and
others are Upper Cretaceous or younger, but the age of most of them is unknown. A northwesterly structural trend is dominant in the area mapped, but it has been superposed on an older, northeasterly or easterly trend in parts of the area. The northwesterly trend is more pronounced in the central
part of the area, whereas a northeasterly trend is common in the western and eastern parts of the area. No mineral deposits have been proved economic.
Mississippian subsurface geology in the Pembina area, Alberta
Authors: Martin H L
Published: February 2016

Mississippian rocks in the Pembina map-area are more than 1, OOO feet thick in the west but disappear eastward mainly because of erosion in Late Palaeozoic, Triassic, Jurassic, and Cretaceous times. Thus progressively older Mississippian formations underlie the
sub-Mesozoic unconformity from west to east. Hydrocarbons are trapped in porous carbonate rocks at the erosional edges of the producing formations in the Brazeau River, Minnehik-Buck Lake, and Wilson Creek gas fields. Mississippian rocks disconformably overlie Lake Devonian limestones; in ascending
order they comprise the Exshaw, Ban££, Pekisko, Shunda, and Turner Valley Formations. The black radioactive Exshaw shale is overlain by the Banff which consists of three units: lower argillaceous limestone, medial bioclastir limestone, and upper silty unit. Resistant, light-coloured bioclastic
lin1estones and dolomites of the Pekisko form a low palaeotopographic ridge that separates the relatively recessive Banff and Shunda Formations. Dolomitized Pekisko crinoidal limestones with vuggy and intercrystalhne porosity form the reservoir rock of the Minnehik-Buck Lake field. Two facies are
recognized within the Shunda Formation: an eastern breccia facies, and a western anhydritic carbonate facies. The uppermost Mississippian beds, the porous dolomites of the Elkton Member of the Turner Valley Formation, form the reservoir rock of the Brazeau River field.
Mineral industry of the Northwest Territories, 1964
Authors: Schiller E A
Published: February 2016

This report reviews mining and exploration in the Northwest Territories for 1964. Mining is undertaken in Mackenzie District only. The district's four gold mines - Giant Yellowknife Mines Limited, ConRycon Mines, Discovery Mines Limited, and Tundra Gold Mines
Limited produced 469, 125 ounces of gold bullion with a total value of just over 15 million dollar s . Echo Bay Mines Limited, the district's newest silver mine commenced production in late 1964. Pine Point Mines Limited, a developing lead- zinc property, will commence production in 1966.
Exploration in Mackenzie District centered about the following areas and involved the following companies: Pine Point -Pine Point Mines Limited and Conwest Exploration Limited staked claims and completed geophysical surveys. Sulphur Bay -The Consolidated Mining and Smelting Company Limited and
Rayrock Mine s Limited staked claims and performed geological studies. Clan Lake -A gold find made by the Earl-Jack Syndicate precipitated a mild staking rush. Coronation Gulf area - Sever a l companies we r e active in 1964; gold occurrences were discovered by Mcintyre Porcupine Mines Limited and
James River S yndicate . Back River - The Consolidated Mining and Smelting Company Limited and Falconbridge Nickel Mines completed geophysical surveys and diamond drilling and Discovery Mines Limited and Radiore Uranium Mines Limited staked claims and completed geological mapping. Bathurst Inlet
-Roberts Mining Company prospected 3 permit areas and did detailed studies in selected localities. Contwoyto Lake - Canadian Nickel Company and Falconbridge Nickel Mines did a minor amount of work on claims staked in previous years. ltchen Lake and Point Lake -Giant Yellowknife Mines Limited,
Roberts Mining Company, and Point Prospecting Syndicate completed geological studies. Yellowknife - Falconbridge Nickel Mines and the Consolidated Mining and Smelting Company Limited undertook geological studies and commenced diamond-drill programs on properties near Yellowknife. At Benjamin Lake
International Mines Services Limited staked 273 claims and base-metal showings were staked at Camsell Lake and La Roche River. In 1964, 3, 9 19 claims were recorded in Mackenzie District. In Franklin District Baffin land Iron Mines Limited explored their iron deposit on Baffin Island and The
Consolidated Mining and Smelting Company Limited examined lead-zinc showings on Little Cornwallis Island. In Keewatin District the central and southern parts were explored by Canadian Nickel Limited and Selca Exploration Company Limited respectively.
The mineral industry of Yukon Territory and southwestern District of Mackenzie 1964
Authors: Green L H
Published: February 2016

The paper deals with developments in the mineral industry of Yukon Territory and southwestern District of Mackenzie during 1964. It is the fifth of an annual series. The mineral industry has formed the backbone of the economy of Yukon since the discovery of the
Klondike Gold Fields in 1896. In 1964, the estimated value of mineral production of Yukon was $15, 210, 744. Most of this was from silver, lead, and zinc produced by United Keno Hill Mines Limited, the sole lode mine in the Territory. In lode exploration, development work in a number of properties
gave promising results, particularly on Cassiar Asbestos Corporation Limited 1s Clinton Creek asbestos property and New Imperial Mines Limited properties in the Whitehorse Copper Belt. Brief descriptions of most active and a few inactive lode properties are given. In placer mining, production in
1964 increased slightly over previous years. The Yukon Consolidated Gold Corporation continued dredging operations in the Klondike area and a number of independent operators were active throughout the Yukon.
Lower triassic stages and ammonoid zones of Arctic Canada
Authors: Tozer E T
Published: February 2016

Nine ammonoid zones are recognized in an unusually complete section of marine Lower Triassic rocks exposed on Ellesmere and Axel Heiberg Islands. These zones are grouped into four new stages, named, in ascending order, Griesbachian, Dienerian, Smithian and
Spathian. The Spathian strata a r e followed conformably by beds with early Anisian (Middle Triassic) ammonoids . The Lower Triassic rocks of Western Canada are dated in terms of these stages. The stages may fill a need for named sub divisions within the Lower Triassic and provide a standard for
rocks of this age throughout the world. Comparison with alternative classifications shows the need for the new subdivisions.
A depositional study of the Harbour Seam, Sydney Coalfield, Nova Scotia
Authors: Hacquebard P A , Cameron A R , Donaldson J R
Published: February 2016

A study of the sedimentation, coal petrology and palynology has shown that: 1. Peat deposition of the main seam started in centre of basin and then migrated outward; 2, Two different phases of peat accumulation are represented by the "bright" lower part and the
"dull" upper part of the seam; 3, Bright microlithotypes are higher in Lycospora(L) and dull types possess more Punctatosporites(P); 4. The L-P ratio shows that the palaeoecology was affected by two factors; 5. In one interval of the seam four environmental types can be traced laterally, in the
following order: fluviatile, forested peat bog, open moor and lacustrine; 6, the occurrence of Torispora is related to the "dry" origin of one particular dull band. The density variations depend on proximity of source and most suitable medium of preservation.
Notes on Moraines and Radiocarbon dates in Northwest Baffin Island, Melville Peninsula, and Northeast District of Keewatin
Authors: Craig B G
Published: February 2016

A linear belt of end moraines lies, both spatially and chronologically, midway in the sequence of deglaciation in the northwest quadrant of the area covered by the Wisconsin Lauren tide ice- sheet. The pre sent study presents a series of new radiocarbon dates
bearing on the age of these moraines, and discusses the relationship of the various segments and some aspects of their regional significance .
Preliminary account of the Glacial History of Bathurst Island, Arctic Archipelago
Authors: Blake W
Published: February 2016

Bathurst Island, in the central part of the Arctic Archipelago, lacks the prominent glacial landforms such as drumlins and eskers that characterize certain more southerly islands. It does not appear to have been overridden by the continental North American
(Laurentide) ice sheet during the last glaciation (classical Wisconsin). Nonetheless Bathurst Island bears undoubted evidence of glaciation in the form of till, erratics, and meltwater channels. Erratics, commonly of a quartzose sandstone that outcrops on the island, are widespread and occur at
altitudes up to at least 1, 100 feet (335 m), fa r above the limit of marine submergence. Other important features indicating glaciation are: striae, lakes in bedrock basins, areas of streamlined drift, end moraines, and areas of dead-ice topography. Apparently most of these features are related to
locally centred ice cap(s), but the occurrence of till containing shells above the marine limit at several localities along the east coast may possibly be the result of a glacier tongue in the straits having impinged upon the island. The rapid uplift that has taken place in postglacial time, as
determined by radiocarbon dating of marine shells from the raised beaches, is believed to have resulted from glacial rebound. Thus the last glaciation of Bathurst Island is inferred to have taken place during Wisconsin time. The altitude of the marine limit is close to 300 feet (90 m) along the
east-central and southeast coasts, but it reaches 400 feet ( 120 m) in the long inlets that indent the north coast, suggesting that the ice may have been thicker in the latter area. The radiocarbon dates on marine shells, plus one on peat, also indicate that much of the island was ice-free by 9, OOO
years ago. Since then peat deposits have formed in many localities, but in two places buried peats are more than 35, OOO years old, suggesting that the y are interglacial, or possibly interstadial, in age.
Groundwater hydrology and water supply in the District of Mackenzie, Yukon Territory, and adjoining parts of British Columbia
Authors: Brandon L V
Published: February 2016

Groundwater is effluent in regions of discontinuous permafrost in the Interior Plains and the Cordillera. Groundwater flow in the Precambrian Shield is considered to be negligible. Winter baseflow records, chemical analyses of river waters, the presence of
springs, and the local occurrence of halophytic flora provide evidences of groundwater movement in regions where no piezometric data from borings are available. Quantitative information on the groundwater contribution to the Upper Liard basin is obtained from the relation between discharge and
specific conductance. This relation could be used elsewhere if more data were available. Several thermal springs in the Cordillera derive their heat from deep circulation of meteoric waters. The heating of meteoric waters by an exothermic reaction with sulphides in rock may contribute heat to water
in two springs discharging sulphate waters. Groundwater is available for domestic and community supplies in the glaciated valleys in the Cordillera and in alluvium in other regions. It is used or can be used in many settlements and towns. Whitehorse and Dawson are the largest towns with well
fields.
Flat River, Glacier Lake, and Wrigley Lake, District of Mackenzie and Yukon Territory
Authors: Gabrielse H , Roddick J A , Blusson S L
Published: February 2016

The a rea includes parts of Mackenzie Mountains , Logan Mountains and the H yland and Liard Plateaus . Well defined strati graphic units of Ordovic i an an d Devonian ro cks , mainly carbonates , are exposed throughout the northern and eastern parts of the area ,
these units have s trong lateral persistence, but eventually c hanges outhwesterly into calcareous shales , black shales , and siltstones.
Prote ro zoic strata exceeding 20, OOO fee t in thickness underlie the Palaeozoic se quence. Copper, silver, l ead, zinc , tin, and tungsten minerals have been reporte d and pla ce r gold has been found on several creeks. The area has a reasonable potential for oil and gas.
Structural analysis of part of a-north coal mine, Michel, British Columbia
Authors: Norris D K
Published: February 2016

The layered, Jurassic and Cretaceous(?) Kootenay succession at the stratigraphic level of A-North coal mine has been d e formed by shear consequent upon flexural slip and smallscale faults. Slickenside striae at bedding interfaces and shear surfaces within the
coal provide a kinematic pattern consistent with the structural position of the mine in the Fernie synclinorium of the Lewis thrust plate. Jo:nt surfaces are statistically in hkO; faults are in hkl and appear to be dynamically unrelated to the joints. The effect of layered anisotropy on the
mechanics of shear failure in the succession is shown by slickensides associated with flexural slip and by faults cutting the coal-rock interface. There is a lack of preferred direction of dip of extension faults on the one hand and a preferred direction of dip of contraction faults on the
other.
Two aquifer tests in Winnipeg and Brandon map - areas, Manitoba, 1962
Authors: Charron J E
Published: February 2016

In the summer of 1962, tests were carried out to determine the hydraulic characteristics of two completely different aquifers, in conjunction with a hydrogeological study of the Red River Valley, Manitoba. The Winkler test was made in a thick surficial deposit of
sand and gravel, and the large transmissibility value obtained indicated that a large quantity of water is readily available for future use. The St. Pierre test on the other hand was made in a bedrock aquifer where fractures control the availability of water. It showed that more than 100, OOO
gallons per day can be obtained from this aquifer by drilling a small-diameter well. The results obtained from these two tests are used to solve several local groundwater problems and should also prove useful in comparing these two types of aquifers with similar types in other
regions.
Foraminiferal study of a cross section of Hudson Bay, Canada, 34, 44, and 54
Authors: Leslie R J
Published: February 2016

There are three distinctive foraminiferal faunas in an eastwest cross-section of Hudson Bay. They are: (l) a near shore fauna, (2) a central basin fauna and (3) a central high fauna. Eggerella advena is the dominant species at the shallow stations, and Textularia
torquata is the important species in the basins. The central high has a distinctive fauna, including high percentages of Cassidulina norcrossi, Bulimina exilis, and Astrononion gallowayi. Planktonic foraminifera are represented by Globigerina pachydenna, which is present at only three stations and
in numbers less than l per cent. The concentration of planktonics in bottom sediments of Hudson Bay probably increases toward the entrance of Hudson Strait where more typical marine conditions exist. Ice rafting has had little effect upon foraminiferal distribution. Evidence from sediment studies
indicates that only the two stations farthest west have been influenced. Sediment size is closely related to bottom topography and current direction in the bay. Since the grain size and bottom topography are related, the foraminiferal population varies with each. Ostracodes occur only at the western
end of the section. Diatoms are present in all the samples, but are most abundant on the western side of the bay. Radiolarians were not found in any of the samples, and if they are living in Hudson Bay, it is near the entrance to Hudson Strait.
Maxhamish Lake, British Columbia, 94o
Authors: Taylor G C , Stott D F
Published: February 2016

Strata, ranging in age from Mississippian to late Cretaceous and having an aggregate thickness in excess of 9, OOO feet, are described from occurrences in the Maxhamish Lake map-area. The oldest rocks exposed are carbonates of the Mississippian Flett Formation.
These are overlain by the erosional remnant of the Mississippian Mattson Formation consisting of sandstone. The Lower Cretaceous Fort St. John Group, comprising the Buckinghorse, Sikanni, and Sully Formations, unconformably overlies the Paleozoic strata. Upper Cretaceous strata, that occur mainly in
the western half of the area, are included in the Dunvegan, Kotaneelee, and Wapiti Formations. The map-area lies wholly within the Interior Plains physiographic province. Nevertheless the bedrock has been deformed into several structures similar to those of the more mountainous areas to the west and
north.
An evaluation of surface geochemical prospecting for petroleum, Olds-Caroline area, Alberta
Authors: McCrossan R G , Ball N L , Snowdon L R
Published: February 2016

A commercially employed, surface geochemical petroleum prospecting technique was tested over an area of 540 square miles in the western part of Alberta. Four thousand five hundred and sixty-one samples of the glacial soil taken from a depth of 5 feet were
analysed for their content of methane and normal butane gases by degassing them with a mild acid treatment under vacuum. These data formed the basis for anomaly maps created by a computerized analysis which finally produced contours by a moving average technique. The analysis involved corrections
for such factors as carbonate content by selecting points greater than three standard deviations above local backgrounds in unit cells. The effectiveness of the method was then tested statistically by comparing the anomalous points with the underlying oil and gas pools and with a map of fracture
patterns. The distributions were random with respect to the pools and other mapping techniques attempted with the data also were ineffective. Further detailed sampling indicated the anomalous points were discrete with poor reproducibility of results from adjacent samples. Detailed studies of the
soil mineralogy indicate that much, if not all, of the hydrocarbons in the soil contained within carbonate rock fragments, especially dolomite, which were derived by glacial erosion of outcrops in the mountains lying to the west. It would appear that the carbonate corrections built into the program
were not adequate to cope with the large interferences in this type of soil. If any of the gas in the soil was derived from the underlying pools and absorbed on the soil minerals, it was effectively masked by the contaminating carbonates. This method, and others similarly based on adsorbed gases in
the soil, cannot be recommended for use in the glacial soils of western Canada and may be of doubtful value in other areas wherever carbonate minerals in the soils are non-uniformly distributed.
Stratigraphy and paleomagnetism of Mount Edziza volcanic complex, northwest British Columbia
Authors: Souther J G , Symons D T A
Published: February 2016

Mount Edziza is the largest and most complex in a group of Late Tertiary and Quaternary volcanoes that lie along a north-south zone of nor mal faults along the easternside of the Coast Geanticline in northwestern British Columbia. It is a compo site shield and
dome in which flat-lying lavas and pyroclastic rocks rest uncomfortably on tilted lavas and elastic sediments of t h e Early Tertiary Slok o and Sustutgroups. The products of Mount Edziza be long entirely to the alkali rock series and vary in composition from alkali o li vin e basalt through trachy
basalt to peralkaline trachyte and sodic rhyolite. Atleast four principal magmatic cycles or stage s are recognized. Each stage began with eruption of primary basalt and culminated with eruption of a more acid phase. Rocks belonging to the earliest stages have been deeply dissected whereas the
youngest flows and pyroclastic con e s show little or no evidence of erosion. Detailed paleomagnetic polarity pro fil e s of three strati graphic sections indicate that six reversals in the earth's magnetic field occurred during the life of the volcano. Correlation of the polarity events with
radiometric ages and glacial stratigraphy indicates that volcanic activity began about 6 m .y.B.P ., during magnetozone 14, and continued intermittently throughout P le is tocene and into Recent time. During this long interval, successive centres of eruption we r e confined to a zone within a few
mil e s of the present crater of Mount Edziza. Moreover, there is no evidence of progressive change in the character of the primary a lkalio livine basalt, or it's per alkaline fractionation products, that issued during the four successive stages of activity. Thus the volcanicity of Mount Edziza
appears to reflect a consistent tectonic environment that has persisted throughout Late Tertiary and Quaternary time. The peralkaline nature of the Edziza lavas and the irassociation with north-south normal faults suggests a zone of crustal rifting.
Computer program for the analysis of multivariate series and Eigenvalue routine for asymmetrical matrices
Authors: Agterberg F P , Cameron G D
Published: February 2016

A computer program is presented by which the transition matrix for a multivariate series can be calculated. The solution is based on the assumption that the series satishes a Markov scheme of the first order. By means of the eigenvalue routine, the transition
matrix is divided into separate components of two types: (1) components consisting of real numbers only, and (2) components consisting of complex numbers. The trend factors extracted from components of the first type indicate linear combinations of the variates with a variation pattern that is close
to a smooth curve when the eigenvalue for the component is close lo unity. Components of the second type occur in conjugate pairs and may describe cycbcal variations of the variates.
Contributions to geological exploration in Canada
Authors: Jenness S E
Published: February 2016

These seven papers discuss some recent Geological Survey investigations that relate to geological exploration in Canada. Wright summarizes the functions and distribution of the 112 full-season field projects undertaken by the Geological Survey of Canada in 1965.
Wright and Duffell review the progress made since 1952 in geological studies in the northern Canadian Shield. Baragar, Goodwin, and Souther illustrate the close relationship of mineral deposits to volcanism in the Stikine area of British Columbia, in the Coppermine River basalts, Muskox ultramafic
complex, and Yellowknife Group in the District of Mackenzie, and in the Porcupine-K irkland LakeNoranda 'greens tone 1 belt in Ontario an d Quebec. Hood reviews the revived interest in magnetic methods of prospecting during the past few years and the many types of airborne and ground magnetometers
currently available. Bhattacharyya discusses current methods of in terpreting aeromagnetic data at the Survey as a direct a .id in mineral explor ation and to basic geological studies. Collett reports a successful airborne technique using electromagnetic equipment for the reconnaissance surveying of
surficial and glacial deposits for glacial and groundwater investigations. Gregory summarizes preliminary successes using colour aerial photography in geological interpretations and airborne gammaradiation equipment.
The Geological Survey of Canada radiocarbon dating laboratory
Authors: Dyck W
Published: February 2016

The Radiocarbon Dating Laboratory of the Geological Survey of Canada began cl4 age - determinations in 1961, using a 2 - litre copper counter inside a 9-ton background shield consisting of 8-inch i ron, 4 - inch paraffin, a ring of 23 cosmic - ray gua r d tubes,
and 1 inch of mercury. The background, standard, and meson counting rates at an operating pressure of 150 cm Hg using Co2 as the counting gas are 1.3 c /m, 20 . 2 c /m, and 165 c /m, respect ively. In 1964 a 5 -li tre counter was put into operation. At4atmospheres this counter has a backg r ound of
3.1 c /m, a modern wood count of 111. 0 c /m, and a meson rate of 268 c /m, thus permitting an extension of the age range to 54,000 years from a previous maximum of 40,000 years, using the 4 sigma criterion . Samples are burned in a stream of oxygen and the C02 released is purified on passage
through a series of chemicals and traps. Approximately 450 age determinations of materials of geological interest, most of which have been reported in Radiocarbon, volumes 4, 5, 6, and 7, have been completed during the 5-year period 1961-1965. In addition approximately 50 geochemical samples,
including tree rings from a Douglas fir from Vancouver Island and modern maple leave s and grass from Ottawa have been analyzed. Results of investigations of sample contamination indicate that many sea shells are slightly contaminated, resulting in ages that may be in error by seve ral hundred yea
rs; no contamination has so far been found in peat samples.
Field and laboratory methods used by the Geological Survey of Canada in Geochemical Surveys, No. 6 determination of hydrocarbons in soils by gas chromatography
Authors: Debnam A H
Published: February 2016

The following is a method of determining light hydrocarbons in soil by gas chromatography. To prepare the sample the soil is dried at 110°C, lightly crushed and sieved through a 200 mesh Tyler screen. A weighed portion of the minus 200 mesh fraction is
placed in a reaction flask and the system evacuated. The sample is heated after addition of 2N hydro chloric acid and the evolved gas passed through a series of traps to remove C02 and moisture. The hydrocarbons are finally removed in a trap immersed in liquid nitrogen. The last trap is removed from
the system, brought to room temperature, and attached to a gas chromatograph. The gas mixture is flush e d in to the instrument, the hydrocarbon components separated, and determined quantitatively by means of a hydrogen flame ionization detector. Fourteen or fifteen samples may be processed per
8-hour day with a precision of+ 10 per cent.
A review of Quaternary paleobotany and palynology in Canada
Authors: Terasmae J
Published: February 2016

A review of Quaternary palaeobotany and palynology in Canada shows a development from the early exploratory studies before 1900 to more systematic investigations after 1940. Extensive peat bog surveys in the early nineteen hundreds stand out because of their
economic objectives. Since 1930 palynological studies have become dominant over investigations of plant macrofossils. In recent years the potential usefulness of palaeobotanical studies in both physical and biological sciences dealing with our natural environment has been clearly established. The
methods used in palaeobotanical research have become more precise and versatile and allow an improved assessment of the basic hypotheses employed in the interpretation of the Quaternary palaeobotanical and palynological record.
Studies in standard samples of silicate rocks and minerals part 3: 1973 extension and revision of usable values
Authors: Abbey S
Published: February 2016

An earlier review of the state of international reference samples of silicate rocks and minerals has been brought up to date by the addition of new data and correction of errors. New "usable" values of varying degrees of reliability, calculated on the "dry basis"
are assigned where possible for major, minor and trace elements in 34 samples. Values are also compared with those listed in other compilations.
Use of a geological field data collecting form on operation Bylot, north-central Baffin Island, 1968
Authors: Reinhardt E W , Jackson J D
Published: February 2016

A computer-oriented data form was conceived, developed, and utilized on a helicopter-supported geological bedrock reconnaissance mapping project so as to assure consistency of note-taking among five participating geologists, to accumulate a greater volume of
information from each data sit e , and to make a permanent data file available for machine processing. Other benefits include: more consistent and precise control in r elating lithology to structure, ability to perform subsequent machine processing directly from the keypunched data file, easier
search of the data forms than conventional notes for information, and a better pre-assessment of the proposed map-area. Design considerations for a reconnaissance data-collecting format differ significantly from those for a detailed or topical investigation mainly because of: the large area to be
examined - greater geological complexity; the fact that both related and unrelated types of data are collected at each outcrop; and the challenging logistics problems associated with helicopter reconnaissance mapping in remote Arctic regions with poor weather conditions. The data format had to be
comprehensive enough to allow documentation of a large variety of lithologies, map-units , and structures; yet simple enough to be completed in a reasonable time period. Notable savings in time were realized through use of voice-tape records for initial recording of field observations. Mechanical
processing methods for reconnaissance manuscript map production are more limited than for detailed work or for topical studies because of extensive reliance on air photo interpretation, aeromagnetic maps, 'between-station' observations, the interpreter's experience, and on information gleaned from
reports of early surveys and expeditions. Mechanical processing will not likely be employed during preparation of preliminary publications but will undoubtedly be attempted in preparing final publications. Anticipated utilization will consist of sorting and compilation of lithological and
mineralogical data to assist in refining definitions of rock-units, metamorphic grade, and structural domains.
Analysis of rocks and minerals by atomic absorption spectroscopy part 3 : a lithium-fluoborate scheme for seven major elements
Authors: Abbey S
Published: February 2016

A new analytical scheme is proposed , whereby silica, alumina, total iron, magnesium, calcium, sodium and potassium are determined in silicate rocks and minerals by atomic absorption spectroscopy . Samples are decomposed by fusion with lithium metaborate, the
fusion is dissolved in dilute hydrofluoric acid, and excess fluoride is complexed by the addition of boric acid. The resulting stable solution contains all of the nonvolatile components of the sample, and aliquots are analyzed by comparison with solutions similarly prepared from international
reference samples of rocks. Possible extension of the method to other components is discussed.
The preparation of polished sections at the Geological Survey of Canada
Authors: Mcleod C R
Published: February 2016

Procedures used in the production of polished sections are divided into three main stages: ( 1) mounting and impregnation of samples, using vacuum; (2) grinding, with diamond-impregnated laps; and ( 3) machine polishing, using diamond-oil mixtures on lead
laps.
Canadian university graduate theses in the Geological Sciences, Abstracts published in the Canadian Mining Journal, 1953-1963
Authors: Henderson J F
Published: February 2016

This report contains a list of 492 masters and doctoral theses in the geological sciences by graduate students at Canadian universities. Most of the theses were completed during the period 1953 - 1963. The names of the universities and the completion dates of all
these are given, with references to volumes of the Canadian Mining Journal in which abstracts of the theses have been published. The theses are grouped under subject headings covering the main branches of the geological sciences. As many of the theses fall equally well under more than one heading
they may appear two or more times in the report. This report will permit the reader to find out readily what geological research has been completed by Canadian university students during the ten-year period 1953 - 63.
Géologie de la région du Lac Joseph, Terre-Neuve - Québec
Authors: Stevenson I M
Published: February 2016

La région étudiée, située entièrement dans la province de Grenville, repose en général sur une succession métamorphisée de roches quartzo-feldspathiques et de roches gneissiques alumineuses pénétrées
d'intrusions de gabbro et d'anorthosite. Le métamorphisme oscille entre le faciès à épidote et à amphibolite et le faciès à granulite; la plupart des gneiss apparaissent sous forme d'assemblages d'amphibolite caractérisés par la présence de grenat ou
de sillimanite, ou des deux. La tectonique de la région résulte de multiples déformations qui ont entraîné la compression des gneiss en plis complexes serrés à fort pendage, renversés par endroits. Les roches anorthositiques et gabbroïques ont une
structure moins déformée, et sont généralement massives; toutefois, par endroits, apparait un peu de stratification. La région entière a été fortement faillée, mais la glaciation en a raboté, ou tout au moins atténué les traces. Les gneiss
renferment quelques gites de pyrite, de chalcopyrite et de pyrrhotine, mais aucun ne semble être d'importance économique. Les roches gabbroïques renferment souvent de la magnétite titanifère. L'épais manteau de drift sur une grande partie de la région nuit à
une prospection efficace.
Petrology of adamant pluton, British Columbia
Authors: Fox P E
Published: February 2016

Adamant pluton is an elongate, east-trending mass surrounded by amphibolite facies metamorphic rocks of the Proterozoic Horse thief Creek Group. The pluton is a composite body consisting of a hypersthene-augite monzonite core enclosed by hornblende quartz
monzonite. The core grades into the peripheral rock through a transition zone in which the monzonite core is progressively recrystallized to hornblende quartz monzonite. Chemical analyses show that this transition is isochemical. Internal structure is characterized by foliation and lineation
patterns consistent with two fold systems found in the northern Selkirk Mountains, and a prominent marginal foliation locally associated with zones of migmatite. Plagioclase foliation and poorly developed lineation in the monzonite core are obliterated and locally truncated by a younger hornblende
and biotite foliation in the recrystallized periphery of the body. Analyses of augite and hypersthene show a constant Fe:Mg ratio for this mineral pair. Coexisting hornblende and biotite have variable F e:Mg ratios which are correlated with changes in oxidation state due to a thermal gradient from
the core to margin of the pluton. High ?.HzO in rocks at the margin caused a decrease of the hornblende: biotite ratio. The internal structure, petrology, and mineralogy of the pluton indicate a metamorphic origin for the peripheral rock, and a magmatic one for the older monzonite core. It is
concluded that the pluton was originally emplaced as a single igneous intrusion of pyroxene monzonite. Subsequently, this body underwent metamorphism and reintrusion during the late Mesozoic, the most recent episode of deformation and metamorphism in the northern Selkirk
Mountains.