bluuebunny/crossref_metadata_2025 huggingface dataset:
Geology, Clyde River, Baffin Island, Nunavut
Authors: St-Onge M R , Scott D J , Corrigan D
Published: November 2010

The purpose of this database is to provide a complete, digital, internally consistent, and georeferenced collection of spatial data that will assist interested parties in mineral exploration, environmental studies, land use planning, and other investigations
requiring up-to-date earth sciences information.

The geoscientific data included, and the bedrock geological interpretations presented, are the result of a third and final summer of field work (July and August 2002) of a three-year, integrated geoscientific project in the central portion of Baffin Island which is supported by the Geological Survey
of Canada and the Polar Continental Shelf Project (Earth Sciences Sector, Natural Resources Canada) in partnership with the Canada-Nunavut Geoscience Office (Iqaluit, Nunavut). Subsequent databases and geoscientific interpretations released by the Central Baffin Project will feature results derived
from continued bedrock compilation and synthesis activities, as well as publications stemming from surficial mapping, 3D structural modelling, teleseismic, magnetotelluric and gamma-ray surveys, geochronological and geochemical sampling, and 9 BSc, 5 MSc, and 2 PhD theses being completed in the
greater project area.
Surficial geology, Lake Gillian, Baffin Island, Nunavut
Authors: Dredge L A
Published: November 2010

This map is part of a series depicting the surficial geology of Central Baffin Island. The mapping of Quaternary deposits, measurement of ice flow indicators, interpretation of glacial and post-glacial history, and geochemical sampling of the till in this area
are part of an integrated multi-component mapping project led by Marc St-Onge and supported by the Geological Survey of Canada, the Canada-Nunavut Geoscience Office, and the Polar Continental Shelf Project. Field work related to the surficial geology component was conducted in 2001 and 2002. Field
traverses and air photo interpretation provided information on the nature and distribution of surface materials shown on the map, which was constructed using 1:60 000 scale aerial photographs compiled onto a 1:100 000 scale base.
Surficial geology, Wight Inlet, Baffin Island, Nunavut
Authors: Hodgson D A
Published: November 2010

This surficial materials map is one of seven describing central and western Meta Incognita Peninsula as well as the head of Frobisher Bay, at the southeast extremity of Baffin Island. The communities of Iqaluit and Kimmirut lie within these seven maps. Weathered
to unaltered rock is the most extensive surficial material; it is divided on the basis of decreasing susceptibility to weathering into five units. Mappable till covers a minority of the map area; elsewhere, pockets of thin till overlie bedrock. The single till unit is clast supported with an acidic
silty sand matrix, though a silty matrix-supported till is discontinuously present on the southeast coast. Clasts are boulder and cobble Shield rocks of local origin. Thickest till is in the Frobisher Bay Moraine System (FBM) which is composed of multiple end moraine ridges on the flanks
of Frobisher Bay (linear on the north side, where ice pushed upslope, convoluted on the south side in ridges and valleys) and a thick till belt farther west (looping down the regional slope). The area southeast of Markham Bay also has a thick till cover.
Subglacial and proglacial aqueous deposits and landforms are prominent locally. The most common are sand and gravel subaerial glaciofluvial deposits concentrated in the FBM adjacent to Frobisher Bay; farther west, valley trains follow preglacial valleys to Hudson Strait. Raised glaciomarine deposits
in the form of proglacial deltas are present where FBM intersects coasts (Frobisher and Markham bays) and where valley trains terminate. Thick, silty marine deposits are patchy around Frobisher Bay; on the southeast Hudson Strait coast calcareous silty till indicates source ice was in the strait.

There is no terrestrial record of glaciers predating the last (Late Wisconsin) glaciation other than cirques. Striations, rock and till drumlins and till lineations indicate last glacial ice flowing from local, Foxe Ice Dome, down-Hudson Strait and cross-strait sources. The dominant flow was
generally southeast across Baffin Island from the Foxe Ice Dome and this was also responsible for the late glacial readvance into the head of Frobisher Bay (to FBM).
A GIS dataset of geological features for the Etanda Lakes map area (95 C/16), Northwest Territories and Yukon Territory
Authors: Fallas K M , Hynes G F , Lane L S
Published: November 2010

The geological map and database are derived from regional mapping in the Etanda Lakes (NTS 95C/16) 1:50 000 scale map area, as part of the Geological Survey of Canada's Central Foreland NATMAP project. Geological features represented by attributed points, lines,
and polygons have been compiled into a GIS dataset suitable for stand-alone use, or integration with other data sets. User-defined attributes provide traditional geological map information with greater detail and enhancements such as explicit orientation data, location and description of curated
samples, and lithologies at visited outcrops. The Etanda Lakes map area is situated at the southern end of the
Franklin Mountains encompassing the Liard Range and the convergence of the Kotaneelee, La Biche, and Tlogotsho Ranges. The geology of the area is characterised by sedimentary strata, of Late Devonian to Early Cretaceous age, exposed in a series of asymmetrical box or kink folds whose geometry is
controlled largely by the competence of the Carboniferous Mattson Formation. Structure in the area is dominated by the culmination of the Etanda Dome where several anticline trends converge. In the eastern part of the map area the Liard Range exposes a series of closely spaced box folds locally
imbricated by thrust faults of minor displacement. The trend of structures in the Liard Range varies from NNW to NNE, following the curve of the range. Lower Cretaceous strata of the Kotaneelee syncline occupy the valley shared by Chinkeh Creek and Jackfish River. Stratigraphic features include the
westward shale-out of the Flett and Prophet Formations into the Besa River Formation and the sub-Cretaceous unconformity, which cuts out Permian strata to the north and east. The distinctive Chinkeh Formation at the base of the Cretaceous succession was mapped on both sides of the Kotaneelee
Syncline.
Surficial geology, Erichsen Lake, Baffin Island, Nunavut
Authors: Dyke A S
Published: November 2010

This A-series map of the Erichsen Lake NTS map sheet (47E), Baffin Island, Nunavut, was compiled and somewhat generalized from Open Files 1598-1613, which are 1:50 000 scale surficial (Quaternary) geology maps. The surficial geology of the area was not mapped
previously. The Erichsen Lake area was entirely glaciated by the Baffin Sector of the Laurentide Ice Sheet. The surficial geology thus reflects the effects of glaciation, ice recession, and associated relative sea level adjustments. The A-series and open file maps share a common legend, which has
been adapted from the legend of previously published adjoining maps of northwestern Baffin Island. The Open File maps were prepared from airphoto interpretation by the author in 2002 and subsequently field checked in part by the author. Field observations from a dense network of glacial drift
sampling stations were provided by De Beers Canada Exploration and incorporated in the maps during final editing. These maps are the first to be released from a new project, which also involves mapping of areas to the east and south.
Uranium-lead and potassium-argon ages from eastern Bella Coola and adjacent parts of Anahim Lake and Mount Waddington map areas, west-central British Columbia
Authors: van der Heyden P
Published: November 2010

Foliated rocks from the Atnarko complex yield 159 to 157 Ma metamorphic and plutonic U-Pb ages and 148 to 128 Ma hornblende K-Ar ages in the south, and 130 to 115 Ma plutonic U-Pb ages in the north; mica K-Ar cooling ages range from 113 to 97Ma. The undeformed
Firvale pluton, firmly dated by 134 to 132 Ma U-Pb ages, is nonconformably overlain by the Lower Cretaceous Monarch assemblage and by distinct felsic volcanic rocks with a 112 Ma U-Pb age.The Hotnarko volcanic rocks, with a 154 Ma U-Pb age, are inferred to be part of this basement. West of the
Talchako River, the Monarch assemblage is deposited on plutonic rocks with 160 to 155 Ma U-Pb ages. The Atnarko complex represents a mid-Cretaceous structural culmination that exposes the deeper levels of this heterogeneous basement. Discrete stocks of the Four Mile suite, which yield 63 Ma U-Pb
ages, intrude most older units and plug prominent north-northwest-trending brittle faults.
A preliminary stratigraphic and structural geology framework for the Archean Mary River Group, northern Baffin Island, Nunavut
Authors: Young M D , Sandeman H , Berniolles F , Gertzbein P M
Published: November 2010

New mapping (parts of NTS 37 G) has established a preliminary stratigraphic and structural framework for the supracrustal rocks of the Archean Mary River Group on northern Baffin Island. The supracrustal sequence consists of psammite, amphibolite, Algoma-type
iron formation, quartzite, dacite, and komatiite. Four generations of structures are recognized. Strongly developed bedding-parallel S1
foliations are transposed and folded by northwest-vergent, reclined F2 folds. Moderately south-plunging L2 lineations are coaxial with F2 fold hinges. Superposition of east-trending, steeply north-dipping F3 folds on F2 in the southern map area results in 'mushroom' interference patterns, whereas in
the west-central area, F2 and F3 are nearly coaxial, producing Type 3 interference patterns. Northwest- and northeast-trending conjugate kink and chevron-style folds are attributed to D4. Newly identified economic mineral prospects include
sulphidized (up to 30% pyrite+/chalcopyrite+/-arsenopyrite) iron formation, and disseminated and fracturefilling sulphides in ultramafic intrusions.
Volcanic stratigraphy and structural geology of the Boston area, Hope Bay volcanic belt, Nunavut
Authors: Sherlock R L , Sandeman H A
Published: November 2010

The Hope Bay volcanic belt is a mafic volcanic-dominated Archean greenstone belt, in the northeast part of the Slave Structural Province in western Nunavut. The Boston gold deposit, located in the southem part of the Hope Bay belt, is the largest of the known
gold deposits in the belt, with a resource of about 1.5 million ounces of gold. The oldest rocks in the Boston area are pillow basalts that host the Boston gold deposit. Stratigraphically overlying these basalts are a succession of sedimentary rocks tbat vary from quartzose feldspathic wacke to
argillite. In the upper parts of the succession, these sedimentary rocks are interlayered with intermediate to felsic volcanic sandstones to conglomerates (ca. 2686 Ma). Amygdaloidal pillowed flows overlie the sedimentary rocks, which are in tum overlain by felsic volcanic rocks (ca. 2662 Ma) and
argillite. The belt is flanked to the east by late- to post-volcanic tonalite to granodiorite (ca. 2649 Ma) and to the west by late (ca. 2600 Ma) granites. The strata in the Boston area are folded about a large south-plunging synformal anticline, cored by the pillowed mafic flows that host the
Boston deposit. Asymmetric folds on the east limb of the main anticline have structurally thickened the sedimentary rocks. Gold mineralization is associated with a complex, anastomosing, high-strain zone that is roughly axial planar to the main anticline and is tentatively interpreted as the latest
expression of D, strain. Associated with the high-strain zone is a strong south-plunging stretching lineation, subparallel to the plunge of the anticline fold axis. Accompanying the gold mineralization in the mafic volcanic rocks is a proximal iron-carbonate, quartz and sericite (± paragonite)
alteration assemblage that grades out into a chlorite-calcite distal alteration assemblage. Overprinting the main (D,) structural elements are a series of crossfolds (F, ). This folding event resulted in a large embayment of supracrustal rocks into the tonalite-granodiorite on the eastem side of the
volcanic belt, and also deforms the gold mineralization and associated alteration at the Boston deposit. The timing of gold mineralization at Boston is grossly similar to what bas been proposed for the northern portion of the belt, at the Doris deposit and in the Madrid area, although the mechanism
for gold emplacement is unique in the three areas. Work is underway to constrain the absolute timing of this regional metallogenic event.
Geology and deformation history around the Ferguson Lake Ni-Cu-PGE deposit, Yathkyed greenstone belt, western Churchill Province, Nunavut
Authors: Martel E , Sandeman H , Nicholson J
Published: November 2010

Rocks in the Ferguson Lake map area consist of multiply deformed Archean gneissic metavolcanic and metasedimentary rocks, and associated tonalitic, granitic, and gabbroic rocks, which have been metamorphosed to upper amphibolite facies. Variably deformed
Proterozoic rocks include late gabbro, and syenite plutons and associated lamprophyre dykes. Massive sulphide mineralization is hosted along a stratigraphy-parallel hornblendite layer. Three generations of ductile structures are recognized (G1, G2, and G3), where the development of the gneissic
layering occurred prior to G1 structures. The hornblendite records an S1 foliation and it is, along with the massive sulphide mineralization, folded by F2 and F3. Since G1 and G2 events are tentatively correlated with 2.62 Ga thrusting and 2.55 Ga folding and metamorphism documented in the Yathkyed
greenstone belt to the south, the hornblendite-hosted mineralization is inferred
to be Archean.
Re-evaluation of thermal maturation - vitrinite reflectance profiles for Cretaceous and Tertiary strata, Beaufort-Mackenzie basin, Northwest Territories (Adlartok P-09, Amerk O-09, Edlok N-56, Ikhil K-35, Sarpik B-35, Hansen G-07 and Havik B-41)
Authors: Stasiuk L D , Issler D R , Tomica M , Potter J
Published: November 2010

Thermal maturity of Tertiary and Cretaceous strata has been assessed using per cent huminite (vitrinite) reflectance in oil (%Ro) for the Adlartok P-09, Amerk O-09, Edlok N-56, Ikhil K-35, Sarpik B-35, Hansen G-07 and Havik B-41 wells, Beaufort Sea-Mackenzie
Delta area, Northwest Territories. In general, coalification/thermal maturity ranges from ~ 0.15 to 0.25 %Ro at surface to ~ 0.60-0.65 %Ro at 3-3.5 km, to ~ 0.70-0.75 %Ro at 5 km depth.
A review of Mackenzie Delta-Beaufort Sea petroleum province conventional and non-conventional (gas hydrate) petroleum reserves and undiscovered resources: a contribution to the resource assessment of the proposed Mackenzie Delta-Beaufort Sea Marine Protected area
Authors: Osadetz K G , Dixon J , Dietrich J
R , Snowdon L R , Dallimore S R , Majorowicz J
A
Published: November 2010

The Beaufort-Mackenzie Basin hosts an immense petroleum resource. Fifty-two petroleum fields found by 263 wells, including four gas hydrate research wells, have discovered petroleum expected to be 172.75 X 106m3 recoverable crude oil (RCO) and condensate and
254.67 X 109m3 marketable conventional natural gas (MNG). The region is estimated to have an expected undiscovered 957.2 X 106m3 RCO and 1.64 X 1012m3 recoverable conventional natural gas. The conventional resources are co-located with an immense gas hydrate resource estimated between 2.4 X 1012 and
87 X 1012m3 raw natural gas in place. Development of the, often co-located, gas hydrate petroleum resource could augment the conventional petroleum province significantly within the production life span of the conventional onshore fields.
The undiscovered gas in the Kendall Island and Kugmallit Bay regions of the proposed Mackenzie Delta - Beaufort Sea Marine Protected Area (MPA) is a portion of 356.94 X 109m3 undiscovered gas, including possibly a gas field >28.33 X 109m3 MNG gas plus the discovered gas within its
boundaries. The inference of the total gas potential in the proposed MPA is not possible because there is no assessment of undiscovered gas potential in the West Beaufort play group, and therefore there is no basis for inferring the conventional natural gas potential of the Mackenzie Bay region of
the proposed MPA. The total undiscovered crude oil potential in the proposed MPA is some fraction of 466 X 106m3 recoverable crude oil that might include one undiscovered pool >16 X 106m3 and multiple undiscovered pools >4.0 X 106m3 in the Kendall Island and Kugmallit Bay
regions and one to three crude oil pools >16 X 106m3 and some fraction of the 12 undiscovered pools in the 3.97 to 15.87 X 106m3 size range in the Mackenzie Bay region. Within the region of the MPA the total gas hydrate potential is estimated to be between 1.27 X 1010m3 - 4.60 X 1011m3
raw natural gas in place.
The specific impact and effect of three candidate Marine Protected Area (MPA) sites identified by the Department of Fisheries and Oceans (DFO) in the southern Canadian Beaufort Sea on the exploration, development and transportation of existing regional petroleum reserves and resources cannot be
appropriately determined using the available sources of data and inference. There is no consensus regarding either the discovered reserve or the undiscovered potential among various stakeholder groups, based on the pre-2002 data set alone. Since 2002 much important new, confidential industrial data
has been acquired.
Hydrocarbon fluid inclusions and free oils within basal Cambrian and Elk Point Group sandstones, southern Alberta
Authors: Stasiuk L D
Published: November 2010

This CD contains HTML and Pdf formats (digital) thermal maturity data of Basal Cambrian sandstone and Elk Point Group sandstone samples from Southern Alberta, examined using reflected white light and fluorescence microscopy, and microspectrometry for evidence of
free oils, entrapped oils, hydrocarbon fluid inlusions, and solid bitumen or pyrobitumens.
Organic petrology of kerogen, hydrocarbon fluid inclusions, and pyrobitumen in Middle to Upper Devonian strata, west-central Alberta (TP 60-62; R4W6)
Authors: Stasiuk L D
Published: November 2010

This CD contains microscopic data on the analyses of Three samples: (i) a source rock sample from the Upper Devonian Duvernay Formation at 15-34-62-4W6 (depth: 4477-4495m) for thermal maturity assessment, (ii) a pyrobitumen enriched sample from the Middle
Devonian Beaverhill Lake Group at 15-34-62-4W6 (4564m depth) for evaluation of origin, and; (iii) a fracture-filling coarse grained calcite from the Wabamun at 1-36-60-3W6 (4210m depth), for aqueous and hydrocarbon fluid inclusion analysis. Based on the reflectance in oil of primary solid bitumen,
and visible light region fluorescence and fluorescence alteration properties of acritarchs and unicellular alginite, the thermal maturity level of the Duvernay Formation sample is on the order of 1.5 to 1.6 %Ro (mean %Ro = 1.55). Solid carbon within the Beaverhill Lake sample is
characterized by a predominance of anisotropic pyrobitumen, which is interpreted to be derived from the thermal cracking of a pre-existing liquid hydrocarbon phase. Some of the optical microtextures, although not widespread, indicate that an NSO-enriched fraction, CO2 and sulphur-enriched compounds
interacted with the pyrobitumen.
Fluid inclusion analysis of Wabamun calcite from Chevron Poco Resthaven 01-36-60-3W6 indicates three types of fluid inclusion assemblages (FIA): i.e. 2-phase aqueous FIA, 1-phase CH4 rich FIA and 1- and 2-phase hydrocarbon FIA. The 2 phase aqueous inclusions yield Th values ranging from 163 to 198
oC. Te value of 52 oC were recorded, indicating a system of NaCl-CaCl2-H2O. Tm values between 10.0 and -11.0 suggest a salinity of 13.9-15.0 (wt.% NaCl eq.). The fracture-fill coarse-grained calcite from the Wabamum Formation, contains, in places, relatively high concentrations of 2 phase,
blue-fluorescing hydrocarbon fluid inclusions. Visible light region microspectrometry conducted on these hydrocarbon inclusions (Lmax = 430 nm, Q = 0.03 to 0.07) indicates they contain liquids with an estimated °API of ~50 to 55.
History of ice flow in the Schultz Lake and Wager Bay areas, Kivalliq region, Nunavut
Authors: McMartin I , Dredge L A
Published: November 2010

In the Schultz Lake area, faceted and striated bedrock surfaces and palimpsest streamlined landforms record multiple ice flows. An old southeastward flow across the area was followed by a north-northwestward flow and a late westward ice-streaming event. In the
Wager Bay area, striations and glacial landforms are less developed. In the northern parts of this area, flow was to the north-northwest, with late flows into Wager Bay. In the south, flows shifted between southward and southeastward. A central 20 km wide belt of weathered upland terrain has few
striae or glacial landforms. Although both areas lay beneath the Keewatin Ice Divide during the last glaciation, ice-flow directions, sequences, and glacial landscapes are different. Mobile, wet-based ice and a shifting ice divide characterized the Schultz Lake area. In contrast, the ice divide at
Wager Bay seems to have been fairly stable and could have been cold based prior to deglaciation.
Gold deposits of the world: distribution, geological parameters and gold content
Authors: Gosselin P , Dubé B
Published: November 2010

The spatial distribution and most significant geological attributes of bedrock-hosted (lode) gold deposits of large size and importance are depicted in this data set. Most of these deposits originally contained at least one million troy ounces (31 metric tons)
of gold metal. Lode gold deposits have originated in a wide variety of geological environments. Some are related to igneous emplacement and others are formed during periods of moderate to intense deformation . Placer and paleoplacer deposits are not included in this data set. The downloadable
data summary is periodically extracted from a database prepared for the World Minerals Geoscience Database Project (1998-2003). The full database can be viewed and queried over the Internet, and is being provided on CD-ROM as a GSC Open File. The CD-ROM version of this data set requires the use of
MS-Access, and the database management (data entry/browsing and query) utilities packaged as GlobalDBSystem and developed by Robert Laramée.
Results of bedrock mapping of the Darby Lake - Arrowsmith River north map areas, central Rae Domain, Nunavut
Authors: Sandeman H A , Schultz M , Rubingh K
Published: November 2010

The Darby Lake - Arrowsmith River area, southwest of Pelly Bay and southeast of Chantrey Inlet, is readily divided into three northeast-trending lithotectonic subdomains all of which are dominated by granitoid rocks, but contain uncommon, dispersed remnants of
upper greenschist- to amphibolite-facies Archean supracrustal rocks dominated by psammite and semipelite with rare mafic and ultramafic units.
Greenschist-facies supracrustal rocks are associated in the northwest and southeast by widespread tonalite, granodiorite, and monzogranite. Along the central axis of the map area, a wide range of moderately to strongly deformed, commonly L>S medium-grained to megacrystic granodiorite to
dominant monzogranite tectonite bodies at amphibolite facies, grade into biotite±garnet and biotiteorthopyroxene± garnet-bearing granitoid rocks. These granitoid rocks all contain abundant screens, rafts, and schlieren of tonalite,
biotite±garnet±hornblende±sillimanite-bearing metasedimentary rocks, and cospatial metasedimentary metatexite and diatexite. Small cupolas of massive biotite±magnetite monzogranite crosscut these rocks
An investigation of gas seeps and aquatic chemistry in Fisherman Lake, southwest Northwest Territories
Authors: Smith I R , Grasby S E , Lane L
S
Published: November 2010

Concerns about water quality in Fisherman Lake led to the discovery of 13 gas seeps. Analyses of 13C isotope compositions of two gas samples (d13CCH4 -73.1 and -70.9; d13CCO2 -19.4) indicate that they are biogenic methane produced by CO2 reduction. This rules out
the possibility that the gas is thermogenic methane seeping through fractures connected to the underlying Pointed Mountain gas field. What is
unknown is what effect, if any, methane production might have on Fisherman Lake aquatic chemistry and ecology. In a eutrophic lake, methane can produce winter anoxia. If this occurred in Fisherman Lake, it could produce the unpleasant water odour, taste and fish kills reported by residents. However,
these same conditions could be the product of phytoplankton blooms and/or eutrophication, independent of methane generation. Further studies of seasonal and stratigraphic limnology, and paleolimnological records would be required to answer these and other questions.
Preliminary results of field mapping, petrography, and GIS spatial analysis of the West Tuya lava field, northwestern British Columbia
Authors: Wetherell K , Edwards B , Simpson K
Published: November 2010

An overview and summary of fieldwork, GIS spatial analysis, and preliminary petrographic analysis conducted between July 2003 and August 2004 is presented for the West Tuya lava field, which is part of the northern Cordilleran volcanic province, in the
south-central part of the Jennings River (NTS 104-O) map area, northwestern British Columbia. The most important preliminary results include the following:
a) identification of three subaerial shield volcanoes, which, based on mineralogy, probably range in composition from alkaline basalt to nephelinite and/or mafic phonolite, b) confirmation that mantle-derived peridotite inclusions ranging from 1 to 4 cm in size are present at two of the volcanoes,
and c) interpretation of the subaerial lava flows as predating the Holocene. Using the 3D Analyst extension of ArcGIS 8.3, the minimum and maximum volumes of material erupted can be constrained to 10.36 km3 and 23.42 km3, respectively.
Rock-Eval pyrolysis data for the East Mackay I-77 well, Northwest Territories, Canada
Authors: Issler D R , Stasiuk L D , Snowdon L R
Published: November 2010

Rock-Eval7/TOC data are presented for washed cuttings samples at 10 m intervals in the Northrock et al. East MacKay I-77 well (64o 46' 41.61" N Latitude; 125o 43' 10.28" W Longitude) located in the central Mackenzie Valley south of Tulita, Northwest Territories.
The basal part of the Upper Cretaceous Slater River Formation is in the very early mature stage of petroleum generation and exhibits good petroleum source potential with hydrogen index values as high as 560 mg HC/g TOC and TOC values up to 8 to 9 wt%. Mature (Tmax of 441 to 449) organic-rich
intervals in the Devonian Canol and Hare Indian (including Bluefish Member) formations have residual source rock potential with TOC values of 2 to 6 wt% and HI values of 300 to 340 mg HC/g TOC. Much of the Cretaceous interval contains reworked organic material that obscures the actual thermal
maturity trend.
Preliminary bedrock geochemistry and drift prospecting results from the Committee Bay North Project (NTS 56N and 56-O/North), mainland Nunavut
Authors: Little E , Sandeman H , Ozyer C , Young M , Utting D J
Published: November 2010

In collaboration with Indian and Northern Affairs Canada (INAC) and the Geological Survey of Canada (GSC), the Canada-Nunavut Geoscience Office (CNGO) initiated the Committee Bay North Project in the Darby LakeArrowsmith River NTS map areas in 2004. The study
area lies southwest of Pelly Bay and southeast of Chantrey Inlet in central mainland Nunavut (Figure 1), south of the community of Taloyoak. This critical area was selected to bridge the geoscience gap between the Committee Bay supracrustal belt to the south and the poorly documented Barclay
supracrustal belt to the north (Figure 2). A regional-scale till sampling program and ice-movement study were also undertaken. The Committee Bay North Project will contribute to framework mapping and geoscience knowledge of Nunavut through the following outputs: 1) three new 1:100 000-scale geologic
maps; 2) digital compilation of all available geophysical and remotely sensed datasets; 3) digital release of all subsidiary datasets, including those derived from surficial, geochronological, petrological and structural studies; and 4) progress reports and/or presentations to be given at
appropriate geoscience meetings. This open file report presents the results from the bedrock and till sampling programs.
Geological Survey of Canada revised shell dates
Authors: McNeely R , Brennan J
Published: November 2010

This manuscript presents 2007 radiocarbon age determinations made by the GSC Radiocarbon Dating Laboratory from 1961 to 2000 on 1962 on shell samples, and 45 on marl and other calcareous material. These samples were originally published in GSC Date Lists, but
prior to 1992 marine shell dates were not normalized to a delta-13C = - 25 per thousand. The revision of the marine reservoir corrections for Canadian waters (cf. Dyke et al., 2003) and the increasing requirement to calibrate radiocarbon ages has made it essential to present normalized ages wherever
possible, thus this revision of GSC shell dates.
The total number (1904) of samples from various regions are as follows: Newfoundland (124), and Labrador including the Shelf and Sea (35); Nova Scotia (28); Prince Edward Island (5); New Brunswick (35); Québec (266); Ontario (75); Manitoba (43); Saskatchewan (7); Alberta (22); British Columbia
(114); Yukon Territory (3); Northwest Territories (110); Nunavut (1001); and International (36), which includes 23 from Greenland.
Geological Survey of Canada radiocarbon dates XXXIV
Authors: McNeely R
Published: November 2010

This list presents 533 radiocarbon age determinations: 364 made by the Radiocarbon Dating Laboratory, Geological Survey of Canada and 169 dates done by other laboratories (Alberta Environmental Centre-Vegreville [AECV], Beta Analytic Inc. [Beta], Brock Geological
Sciences [BGS], Geochron Laboratories [GX], University of Saskatchewan [S], Simon Fraser University [SFU], and Isotrace Radiocarbon
Facility-Toronto [TO]). The distribution of the 529 samples is as follows: Newfoundland (17); Prince Edward Island (7); Nova Scotia (4); New Brunswick (13); Quebec (90); Ontario (8); Manitoba (70); Saskatchewan (1); Alberta (13); British Columbia (240); Yukon Territory (4); Arctic, mainland (25);
Arctic Archipelago, Nunavut (24); Arctic Archipelago, Northwest Territories (11); and Washington State, United States (2).
Tables 1 and 2 summarize the background and standard counts for the 2 L and 5 L counters during the period from January 5, 1993, to January 4, 1994. Figures 1 to 4 show the details of the count period.
A GIS dataset compilation of samples collected for the Targeted Geoscience Initiative project: potential for carbonate-hosted Pb-Zn (MVT) deposits in northern Alberta and southern Northwest Territories (NTS blocks 74, 84, 85, 95)
Authors: Hannigan P K
Published: November 2010

The Targeted Geoscience Initiative project area is located within NTS 1:250 000 map sheets 74 C,D,E,F,K,L,M,N; 84 A through P; 85 A through P; and 95 A through P in Alberta and Northwest Territories, Canada, an area that extends from Fort McMurray and Peace River
(east of Fort St. John, British Columbia) in the south to the west shore of Great Slave Lake in the north. The northeast portion of the project area is occupied by the Canadian Shield. Sedimentary host-rocks for Mississippi Valley-type (MVT) mineralization occur within the Phanerozoic wedge in
the Plains and Foothills of the Western Canada Sedimentary Basin and in the Rocky Mountains of the Cordilleran Orogen. Carbonate-hosted lead and zinc occurrences in the project area are located within the cratonic platform succession beneath the Plains of the Western Canada Sedimentary Basin. MVT
deposits and occurrences are not found in high-temperature metasedimentary rocks of the Canadian Shield. The project area also encompasses the world-class Pine Point Mississippi Valley-type lead-zinc mine-site near the southern shore of Great Slave Lake as well as subsidiary orebodies found in the
Great Slave Reef property located immediately west of Pine Point, NWT.
This GIS dataset is a comprehensive compilation of information for 596 mineralized and non-mineralized samples collected within the TGI project area, specifically to display relevant data commonly used to describe and characterize carbonate-hosted MVT zinc and lead deposits and occurrences. This
three-dimensional dataset may contribute to focusing future exploration efforts within and adjacent to the project area. In addition, for companion purposes, selected samples from known and potential areas for MVT mineralization outside the project area were collected, analyzed, and displayed in
this database. A separate database comprising a compilation of similar data obtained from previously known lead and zinc occurrences in the project area was compiled and is available as a separate CD.
Geology, La Biche River northwest (95 C/NW), Yukon and Northwest Territories
Authors: Pigage L C , Khudoley A K , Fallas K M , Lane L S , Smith I R
Published: November 2010

The northwest La Biche River map area was mapped as part of the Central Fore/and NA TMAP project between 2000 and 2002. The map area occupies part of the Liard Plateau at the southem end of the Mackenzie Mountains. The geology straddles the edges of the MacDonald
Platform, the Mackenzie Platform and the Selwyn Basin. Facies changes within the Paleozoic stratigraphy differentiate the platformal and basinal strata. Paleozoic and Mesozoic strata in this region are deformed into folds and thrust faults with distinct orientation domains. North and northeast
trends domlnate the eastem and southwestern portions of the map area, and north to northwest trends dominate the central portion. This interfering pattern of structural trends is similar to those found on adjoining maps, and is part of the regional structural style. Eocene syenite of the Ting suite
has a post-deformational relationship to folded and faulted Paleozoic strata. Rare occurrences along the modem Whitefish River valley of Tertiary conglomerate and sandstone lie unconformably on deformed Paleozoic strata. Minerai localities are associated with the Ting intrusion, and with exhalite
deposits within the Road River Group. Numerous ferricrete deposits are scattered across the map area within the Besa River and Mattson formations.
Preliminary results from the Whitehorse Trough seismic survey, Yukon Territory
Authors: Buffett G , White D , Roberts B , Colpron M
Published: November 2010

The Whitehorse Trough is a Mesozoic sedimentary basin in south-central Yukon Territory that has been identified as an immature, gas-prone basin, based on a limited geoscience database. One hundred and seventy kilometres of regional, multi-channel, multi-component
Vibroseis seismic-reflection data were acquired in 2004 across the northern Whitehorse Trough in order to improve understanding of its
structural architecture. Preliminary seismic images show reflectivity at shallow, mid-, and deep crustal levels, which are consistent with current geological models. Subsequent analysis will include in-depth processing of both compressional and shear-wave data, and a comprehensive geological
interpretation.
Volcanic ash and lignite of the Lower Cretaceous Chaswood Formation, central Nova Scotia
Authors: Pe-Piper G , Okwese A , Piper D J W
Published: November 2010

Lignites and coals, because of their low sedimentation rates of terrigenous detritus, commonly preserve a record of the input of volcanic ash. A reconnaissance study has been made of lignite from the Lower Cretaceous Chaswood Formation of the Elmsvale basin,
central Nova Scotia in order to identify whether volcanic ash is present, and if it is, whether it could be used to correlate the poorly dated terrestrial rocks with better dated marine successions offshore. The bulk mineralogy and geochemistry of lignite and lignitic mudstones has been determined
by X-ray diffraction (XRD) and whole-rock geochemical analysis of ashed samples; in addition, selected samples have been examined by electron microprobe (EMP) and scanning electron microscope (SEM). Lignites from the Chaswood Formation have several features indicating the presence of volcanic ash:
unusual abundance of high-field-strength elements (HFSE) such as Nb, Ta and Hf; the presence of augite in EMP and XRD analyses; the rare presence of euhedral quartz; and aluminophosphate-sulphate minerals that appear to pseudomorph volcanic ash. Wood or charcoal fragments appear mineralized and
diagenetic talc is present. Much of the terrigenous component of the lignites consists of background detrital sediments (characterized by detrital illite) and most of any ash component has been altered to kaolinite. Bulk composition of ash is inferred to range from basaltic to rhyolitic. Ash beds
are present in both the lower and the middle member of the Chaswood Formation, but our sampling density was insufficient to correlate single beds from one borehole to another. Several ash beds may be present in a single lignite unit. The closest sources of ash are the early Albian volcanic rocks
within the lower Cree Member of the Orpheus graben, in a stratigraphic interval that has been previously correlated with the middle member of the Chaswood Formation, and Berriasian to Barremian volcanic rocks on the SW Grand Banks and Fogo Seamounts. These rocks show similar abundances of HFSE to
the Chaswood Formation lignites. Distinctive REE patterns with low La/Nd ratios are found in many lignites from the middle member of the Chaswood Formation. They likely result from concentration in organic matter of relatively unfractionated REE in ash of similar composition to Albian volcanic rocks
to the southeast.
Fernie Formation at Pink Mountain, NE British Columbia (NTS 94G/2W)
Authors: MacNaughton R B
Published: November 2010

This report presents a detailed measured section through the Fernie Formation at Pink Mountain, Trutch map area (NTS 94G), northeast British Columbia. At Pink Mountain, the Fernie Formation can be subdivided into a lower member, dominated by dark-weathering,
calcareous siltstone and shale, and an upper member consisting of dark-weathering, noncalcareous siltstone and shale with lesser sandstone. Both members were deposited in quietwater marine settings. A synthesis of new fossil collections with earlier reports from Pink Mountain indicates that the
lower member ranges in age from Early Jurassic to at least Middle Jurassic, whereas the upper member is of Late Jurassic age. The two members are separated by a regional unconformity, which, at Pink Mountain, represents at least three stages. Strata in the lower member lack the chert and limestone
beds that characterize the Nordegg Member in its type area and should not be assigned to that unit, but may be correlative with the recently proposed Gordondale Member.
Digital accelerograph recordings of the July 15 and 19, 2004 earthquakes, west of Vancouver Island
Authors: Molnar S , Rosenberger A , Cassidy J F , Rogers G
C , Ristau J
Published: November 2010

Two earthquakes of MW 5.8 [ML 5.5] and MW 6.4 [ML 6.1] occurred on the 15th and 19th of July 2004, respectively, approximately 30 km off the west coast of Vancouver Island. They were shallow strike-slip fault earthquakes (~12 km focal depth). Both
earthquakes were felt across Vancouver Island and as far east as the Sunshine Coast (~200 km) and the greater Vancouver region (~300 km). The MW 5.8 earthquake showed observable waveforms on 34 of 60 Internet Accelerograph instruments and triggered two non-communicating (stand alone)
strong motion instruments. The MW 6.4 earthquake showed observable waveforms on 41 of 60 Internet Accelerograph instruments and triggered three noncommunicating strong motion instruments. The largest peak horizontal ground accelerations recorded were 6.19 cm/s2 and 13.78 cm/s2 for the MW 5.8 and MW
6.4 events, respectively. This data set is significant because it includes the first widespread earthquake recordings by the new Internet Accelerograph instruments. In this Open File report we present time series plots of the acceleration, and velocity data from the 15th and 19th July 2004
earthquakes. Tabulated station parameters and peak accelerations are given together with maps of the network configuration showing the locations of recorded time series. A sample of stations on the Lower Mainland and in Victoria show a variation in the level of ground shaking based on local site
conditions.
Indicator mineral content and geochemistry of glacial sediments from northwest Alberta (NTS 84L, M): new opportunities for mineral exploration
Authors: Plouffe A , Paulen R C , Smith I
R
Published: November 2010

This report presents the results of heavy mineral and geochemical analyses conducted on glacial sediment samples collected in northwest Alberta. This study was undertaken as part of a collaborative project between the Alberta Geological Survey (Alberta Energy and
Utilities Board) and the Geological Survey of Canada (Natural Resources Canada) originally designed to assess the regional occurrence of kimberlite indicator minerals (KIMs) in glacial deposits. Results indicate that KIMs are absent, or rare, and generally consist of trace contents of pyrope and
chromite, the composition of which remains to be assessed with electron microprobe analyses. Gold grains are generally absent from all samples with a some exceptions where they are present in only small amounts. Of particular significance, and the focus of this report, is the presence of anomalous
concentrations of sphalerite grains with secondary galena (up to 1000 sphalerite grains in the 0.25-0.5 mm size fraction from a bulk till sample) from the south-central sector of the Bistcho Lake (NTS 84M) and north central sector of the Zama Lake (NTS 84L) map sheets. The source of the sphalerite
grains in till is unknown. However, given its geographically restricted presence in the regional sample set, it may point to undiscovered sedimentary hosted zinc deposits in this region, and therefore, represents new opportunities for mineral exploration.
Overview of the volcanology of the Bell-Irving volcanic district, northwestern Bowser Basin, British Columbia: new examples of mafic alpine glaciovolcanism from the northern Cordilleran volcanic province
Authors: Edwards B R , Evanchick C A , McNicoll V J , Wetherell K , Nogier M
Published: November 2010

Fourteen previously undescribed volcanic occurrences were documented from the westcentral Bowser Basin, in northern British Columbia, and have been assigned to the Bell-Irving volcanic district. Thirteen of the areas were briefly surveyed during aerial
reconnaissance, while the fourteenth was mapped and described during three days of fieldwork in August of 2004. All fourteen areas contained deposits of pillow lavas and/or volcaniclastic rocks and were interpreted as products of Pleistocene, alpine
glaciovolcanic eruptions. Samples from Craven Lake volcanic centre are basanites. A sample from the Bell-Irving River volcanic centre was dated by 40Ar-39Ar to be 0.43 ± 0.15 Ma, consistent with the interpretation that the deposits formed via interaction with Pleistocene ice. The Bell-Irving
volcanic district is considered to be part of the northern Cordilleran volcanic province.
Ice-movement history, drift prospecting, and marine incursion in the Darby Lake and Arrowsmith River map areas, southern Boothia Peninsula, Nunavut
Authors: Ozyer C A , Hicock S R
Published: November 2010

Study of ice-movement indicators in the Darby Lake (NTS 56 N) and Arrowsmith River (NTS 56-O/9-16) map areas revealed a complex ice-flow history involving four phases. The oldest phase was north-northeastward to northeastward, and likely reflects ice flow during
the last glacial maximum. This was followed by divergent flow, where ice in the western 56 N map area flowed north-northwest, and ice in
the central to eastern 56 N, and in 56-O (north) map areas, flowed north-northeast. The third phase involved a shift of Darby Lake and western Arrowsmith River ice-flow directions to north-northeast and to the northeast in eastern 56-O (north). The final phase was a late-stage advance into 56 N /1
and 2.
As part of a reconnaissance-scale drift-prospecting program, 92 till samples were collected and analyzed for heavy-mineral content, texture, carbonate content, pebble lithology, and trace/major elements. The study area was subjected to significant marine incursion, particularly in the major river
valleys where marine sediments were found at elevations ranging between 92 m to 223 m a.s.l.
Geology, Mount Flett, District of Mackenzie, Northwest Territories
Authors: Lane L S
Published: November 2010

The Mount Rett map area exposes bedrock strata of Late Devonisn through Late Cretaceous age. A major unconformity separates Carboniferous and local/y Permian strata from Early Cretaceous clastic rocks. Except for the basal Chinkeh Formation, the Cretaceous strata
were deposited as a Cordilleran clastic wedge succession. Beneath the unconformity, the youngest preserved strata are Permian Fantasque Formation in the southwest, whereas in the east they are Early Carboniferous rocks of the Mattson Formation, Lower member. Facies changes from east to west are
particularly apparent in the Flett Formation. Lower, Middle and Upper members can be mapped at Mount Flett and locally elsewhere in the eastern part of the map area, but farther west, strata equivalent to the Lower and Middle members are assigned to the Prophet Formation. The structure is dominated
by the culmination of the Flett Anticline which exposes Besa River strata in its core. To the east of the Liard Syncline, en echelon anticlines and thrust faults bring Flett and Prophet strata to the surface. No Besa River strata can be documented at surface in the eastern part of the map. The Liard
River occupies the hinge area of the broad Big Island Syncline in the easternmost part of the area. A unique structural convergence of four ranges (Liard, Mt. Flett, Mt. Coty and Pointed Mtn.) coïncides with the southern terminations of the. Flett Thrust and Flett
Anticline.
Geology, integrated bedrock geology - RADARSAT - digital elevation data of Sudbury, Ontario
Authors: Ames D E , Singhroy V , Buckle J , Molch K
Published: November 2010

The following integrated fusion map of Canada's most prolific base metal mining district, Sudbury provides data for evaluating mineral deposits, structure and lithology.
Integrated Geological Satellite Image Map of the Sudbury Basin: RADARSAT-1 and Digital Elevation Data This satellite image map of the Sudbury basin is the result of producing a mosaic of six high resolution RADARSAT images and integrating the result with the shaded relief of a high resolution
digital elevation model.The following data were used:
1. RADARSAT-1 Fine Mode, descending orbit, 6.25 m pixel spacing CSA Beam 1, 02-November-2000 (2 frames) Beam 2, 11-November-2003 (2 frames) Beam 3, 05-December-2003 (2 frames)
2. Ontario Provincial DEM v. 1.1.0, raster format, 20 m cell size Provincial Geomatics Service Centre
Characterization of hydrothermal alterations at the Red Lake mine, northwestern Ontario
Authors: Cadieux A -M , Dubé B , Williamson K , Malo M , Twomey T
Published: November 2010

The aim of this study is to characterize the hydrothermal alteration of the High Grade zone at the Red Lake mine, with a focus on the altered basalts as they constitute the main host to the ore. These basalts were affected by 1) bleaching (aluminous alteration),
2) garnet-magnetite alteration, 3) emplacement of carbonate-magnetite breccias, 4) biotite-carbonate alteration, and 5) arsenopyrite-rich replacement. The mineralogical assemblages described in the current study confirm that the sampled rocks are transitional between greenschist- and
amphibolite-grade conditions. The majority of the minerals in these assemblages were formed during deformation. The biotite-carbonate alteration and the arsenopyrite-rich replacement zones are clearly associated with the gold mineralization, and the biotite they contain has the characteristic
composition of magnesian biotite. All alteration types show a lower Na2O content than the least altered basalts. The biotite-carbonate alteration and the arsenopyrite-rich replacement zones, from which most of the mineralized samples were collected, show net mass gain due to a K2O, S, CO2 and SiO2
increase compared to the basalt protolith.