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Great Slave Lake Supergroup

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Journal Article

The effectiveness of the Paleoproterozoic biological pump: A δ 13 C gradient from platform carbonates of the Pethei Group (Great Slave Lake Supergroup, NWT) Available to Purchase

R.M. Hotinski, L.R. Kump, M.A. Arthur
Journal: GSA Bulletin
Published: 01 May 2004
GSA Bulletin (2004) 116 (5-6): 539–554.
DOI: https://doi.org/10.1130/B25272.1
... biological pump would have been required to maintain the Proterozoic sulfidic deep ocean proposed by Canfield (1998) as a cause for the end of banded iron formation deposition in the Paleoproterozoic. We chose the Pethei Platform of the Great Slave Lake Supergroup (Northwest Territories (NWT...
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View PDF for article title, The effectiveness of the Paleoproterozoic biological pump: A δ 13 C gradient from platform carbonates of the Pethei Group (<span class="search-highlight">Great</span> <span class="search-highlight">Slave</span> <span class="search-highlight">Lake</span> <span class="search-highlight">Supergroup</span>, NWT)
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Journal Article

Correlation of gravity anomalies with Yellowknife Supergroup rocks, North Arm, Great Slave Lake Free

R. A. Gibb, M. D. Thomas
Published: 01 November 1980
Canadian Journal of Earth Sciences (1980) 17 (11): 1506–1516.
DOI: https://doi.org/10.1139/e80-158
...R. A. Gibb; M. D. Thomas Abstract A gravity map compiled from observations made on the frozen surface of Great Slave Lake shows that the positive gravity anomaly associated with the Yellowknife greenstone belt extends offshore into the North Arm of the lake. On the western shore of Yellowknife Bay...
Add to Citation Manager for Correlation of gravity anomalies with Yellowknife <span class="search-highlight">Supergroup</span> rocks, North Arm, <span class="search-highlight">Great</span> <span class="search-highlight">Slave</span> <span class="search-highlight">Lake</span>
Image
A) Location map showing the Archean Slave craton surrounded by three synchronous Paleoproterozoic basins: Wopmay Orogen, Kilihigok Basin, and the Athapuscow Basin of the Great Slave Lake area (inset map). GBL = Great Bear Lake; CG = Coronation Gulf; BI = Bathurst Inlet. B) Simplified geologic map, Athapuscow Basin, East Arm of Great Slave Lake (modified from Hoffman 1988). The Great Slave Lake Supergroup crops out in a gently south-plunging synclinorium with shallow dips on the northwest limb and steep, in many places overturned, and thrusted limbs, on the southeast limb. Areas of uppermost Pethei Group and Stark Formation outcrops studied are shown in black. BI, Blanchet Island; ET, Et-then Island; PT, Pte a Tuer; PP, Pethei Peninsula; TB, Tochatwi Bay; SL, Stark Lake; BL, Belle Island; CI, Caribou Islands. The Blanchet Bay area is outlined by the irregular rectangle. C) Generalized stratigraphic column in the upper right shows the inferred correlation of units and phases of basin development in the Wopmay Orgogen, the Kilihigok Basin, and the Athapuscow Basin (modified from Hoffman 1988; Hoffman and Grotzinger 1993; Bowring and Grotzinger 1992).

A) Location map showing the Archean Slave craton surrounded by three synch... Available to Purchase

Published: 01 March 2003
geologic map, Athapuscow Basin, East Arm of Great Slave Lake (modified from Hoffman 1988 ). The Great Slave Lake Supergroup crops out in a gently south-plunging synclinorium with shallow dips on the northwest limb and steep, in many places overturned, and thrusted limbs, on the southeast limb. Areas
Journal Article

U–Pb zircon ages from Athapuscow aulacogen, East Arm of Great Slave Lake, N.W.T., Canada Free

S. A. Bowring, W. R. Van Schmus, P. F. Hoffman
Published: 01 November 1984
Canadian Journal of Earth Sciences (1984) 21 (11): 1315–1324.
DOI: https://doi.org/10.1139/e84-136
... Group, the Great Slave Supergroup, and the Et-Then Group. New U–Pb zircon ages provide constraints on the development of the aulacogen.The Blachford Lake Intrusive Suite consists of an older alkaline phase (Hearne Channel Granite) dated at 2175 ± 7 Ma and a younger peralkaline phase (Thor Lake Syenite...
Add to Citation Manager for U–Pb zircon ages from Athapuscow aulacogen, East Arm of <span class="search-highlight">Great</span> <span class="search-highlight">Slave</span> <span class="search-highlight">Lake</span>, N.W.T., Canada
Image
Proposed model for shear zone and brittle conjugate fault development associated with the Slave indentation during the Slave–Rae collision. The axis of maximum horizontal stress, σh, is oriented approximately west–east. (a) The southern face of the Slave indenter first collides at an oblique angle to the Rae margin and forms the right-lateral Great Slave Lake shear zone (GSLSZ). Peak metamorphic grade mylonite developed at ca. 1980–1924 Ma and ca. 1977 Ma along the southwestern and northeastern segments of the GSLSZ, respectively (Hanmer et al. 1992). (b) The frontal face of the Slave indenter subsequently collides orthogonal to the Rae margin. This orthogonal collision is represented in this study by the precursor ductile flattening fabric, ca. 1933–1895 Ma, along the Bathurst fault trend. (c) After ca. 1840 Ma, the brittle conjugate strike-slip Bathurst fault (BF) and McDonald fault (MF) localised along the pre-existing mutually orthogonal ductile fabric. Circum-Slave basins: A, Athapuscow (Great Slave Supergroup); C, Coronation (Coronation Supergroup); K, Kilohigok (Goulburn Supergroup); T, Thelon (Dubawnt Supergroup).

Proposed model for shear zone and brittle conjugate fault development assoc... Available to Purchase

Published: 16 October 2019
at an oblique angle to the Rae margin and forms the right-lateral Great Slave Lake shear zone (GSLSZ). Peak metamorphic grade mylonite developed at ca. 1980–1924 Ma and ca. 1977 Ma along the southwestern and northeastern segments of the GSLSZ, respectively ( Hanmer et al. 1992 ). ( b ) The frontal face
Journal Article

Two detrital zircon signatures for the Cambrian passive margin of northern Laurentia highlighted by new U-Pb results from northern Canada Available to Purchase

T. Hadlari, W.J. Davis, K. Dewing, L.M. Heaman, Y. Lemieux, L. Ootes, B.R. Pratt, L.J. Pyle
Journal: GSA Bulletin
Published: 01 July 2012
GSA Bulletin (2012) 124 (7-8): 1155–1168.
DOI: https://doi.org/10.1130/B30530.1
... of the signatures from Mackenzie Mountains and Great Bear Lake south suggests that there were two distinct sources of detrital zircon available to the northern Northwest Territories during the Cambrian. Detrital zircon ages from Cambrian strata of Victoria Island appear to be a mixture of Shaler Supergroup, Slave...
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View PDF for article title, Two detrital zircon signatures for the Cambrian passive margin of northern Laurentia highlighted by new U-Pb results from northern Canada
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Journal Article

On the Statherian–Calymmian palaeogeography of northwestern Laurentia Available to Purchase

R. H. Rainbird, W. J. Davis
Published: 05 August 2022
Journal of the Geological Society (2022) 179 (5): jgs2022-062.
DOI: https://doi.org/10.1144/jgs2022-062
... from adjacent rocks of the Slave craton and recycling of the Mountain Lake group. Detrital zircon geochronology of sandstones from the Hornby Bay Basin supports stratigraphic correlation with the Wernecke Supergroup in the Wernecke Mountains and the Muskwa assemblage, located further southward along...
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View PDF for article title, On the Statherian–Calymmian palaeogeography of northwestern Laurentia
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Journal Article

Rb–Sr isochron ages, magmatic 87 Sr/ 86 Sr initial ratios, and oxygen isotope geochemistry of the Proterozoic lava flows and intrusions of the East Arm of Great Slave Lake, Northwest Territories, Canada Free

S. P. Goff, H. Baadsgaard, K. Muehlenbachs, C. M. Scarfe
Published: 01 February 1982
Canadian Journal of Earth Sciences (1982) 19 (2): 343–356.
DOI: https://doi.org/10.1139/e82-026
...S. P. Goff; H. Baadsgaard; K. Muehlenbachs; C. M. Scarfe Abstract Two Rb–Sr isochrons from the oldest (Wilson Island Group) and one of the youngest (Pearson Formation) Proterozoic volcanic units in the East Arm of Great Slave Lake give dates and initial ratios of 1810 ± 19 Ma, 0.7051 ± 0.0008...
Add to Citation Manager for Rb–Sr isochron ages, magmatic 87 Sr&#x2F; 86 Sr initial ratios, and oxygen isotope geochemistry of the Proterozoic lava flows and intrusions of the East Arm of <span class="search-highlight">Great</span> <span class="search-highlight">Slave</span> <span class="search-highlight">Lake</span>, Northwest Territories, Canada
Journal Article

Rb-Sr Isotopic Age for the Precambrian Lavas of the Seton Formation, East Arm of Great Slave Lake, Northwest Territories Free

H. Baadsgaard, R. D. Morton, M. A. D. Olade
Published: 01 October 1973
Canadian Journal of Earth Sciences (1973) 10 (10): 1579–1582.
DOI: https://doi.org/10.1139/e73-150
...H. Baadsgaard; R. D. Morton; M. A. D. Olade Abstract Spilitic basalts from the Proterozoic Seton Formation at the type locality of Seton Island in the East Arm of Great Slave Lake, Northwest Territories, have a Rb–Sr isotopic age of 1872 ± 10 m.y. The age, representing either the time of eruption...
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Image
The roots of two westward-facing asynchronous Orosirian magmatic arcs and their respective hinterlands are exposed in the northwest corner of the Canadian Shield (modified after Hoffman 1987a). The early Orosirian (2.07−1.96 Ga) Taltson−Thelon magmatic arc was a product of eastward subduction beneath the leading edge of Rae province (Siderian Arrowsmith orogen), culminating in a collision with the Slave craton at 1.97 Ga. The late Orosirian (1.88−1.84 Ga) Great Bear magmatic arc was a product of eastward subduction beneath the leading edge of Slave craton, including the newly accreted Rhyacian Hottah terrane (green) and peraluminous magmatism (Hepburn Intrusive Suite) synchronous with the Hottah−Slave collision (Calderian orogeny) at 1.88 Ga, which resulted from westward subduction of a Coronation paleocean that opened soon after 2.014 Ga. Wopmay orogen includes the Great Bear arc and zones 2−4: zone 1, autochthonous Orosirian cover (Coronation Supergroup) on Slave craton, comprising passive-margin (Epworth Group) and Calderian foredeep (Recluse Group) strata; zone 2, a thin-skinned foreland thrust-fold belt involving passive-margin shelf facies and foredeep strata; zone 3, thrust sheets of passive-margin slope facies and initial-rift deposits (Melville Group, ≥2014 Ma); zone 4, Rhyacian Hottah terrane klippe, including syncollisional volcanics (Akaitcho Group) and granitoids (Hepburn Intrusive Suite) and its Barrovian metamorphic envelope, underthrust by the rifted leading edge of Slave craton; zone 5. Rhyacian Hottah terrane basement external to Slave craton, overlain and intruded by Great Bear arc igneous rocks. The Great Bear arc was initiated by a subduction flip following the Hottah−Slave collision. Blue areas are Orosirian cover on Slave craton: pale blue, autochthons; medium blue, shelf-facies allochthons; dark blue, off-shelf allochthons. Yellow areas are post-orogenic (1.7−0.7 Ga) basins. Magenta and white lines with crosses are synclinal axes of long-wavelength basement-involved D2 folds. Pale gray is Phanerozoic cover and uncoloured areas are major water bodies. Green box is Fig. 2 area. AL, Artillery Lake basin (Union Island Group outlier); BCH, Bear Creek Hills, frontal thin-skinned thrust ramp of Thelon orogen (Slave−Rae collision); CG, Coronation Gulf (Arctic Ocean); GBL, Great Bear Lake; GSL, Great Slave Lake; HP, Hearne province; MR, Mackenzie River; SR, Slave River; SS, Snowbird suture (1.92 Ga). Horizontal orange bars indicate the subsurface extent of the Great Bear magmatic arc based on well data and the high magnetic susceptibility of magnetite-series granitoids (Takagi 2004) mapped by aeromagnetic surveys (Hayward and Oneschuk 2011; Miles and Oneschuk 2016).

The roots of two westward-facing asynchronous Orosirian magmatic arcs and t... Available to Purchase

Published: 01 May 2023
. Green box is Fig. 2 area. AL , Artillery Lake basin (Union Island Group outlier); BCH , Bear Creek Hills, frontal thin-skinned thrust ramp of Thelon orogen (Slave−Rae collision); CG , Coronation Gulf (Arctic Ocean); GBL , Great Bear Lake; GSL , Great Slave Lake; HP , Hearne province; MR
Image

Fig. 13. Tectonic element map for part of the Slave – Northern Cordillera... Available to Purchase

Published: 30 April 2010
that shot points 1100 and 1113 are off the ends of the recording profile. CS, Coronation Supergroup; GSLsz, Great Slave Lake shear zone; SD, Sleepy Dragon complex. Political units are AB, Alberta; BC, British Columbia; NWT, Northwest Territories; YK, Yukon.
Image
Tectonic map of the study area and location of Lithoprobe's Slave–Northern Cordillera Lithospheric Evolution (SNORCLE) near-vertical incidence reflection and refraction/wide-angle reflection line 1. Stars identify shot locations; some are identified by numbers. Sediments of the Phanerozoic Western Canada sedimentary basin overlie the Precambrian domains west of the long dashed line. Short dashed black lines show political boundaries. CS—Coronation Supergroup, SD—Sleepy Dragon, GSLsz—Great Slave Lake shear zone, AB—Alberta, BC—British Columbia, NWT—Northwest Territories, YK—Yukon. Inset shows location of map within Canada.

Tectonic map of the study area and location of Lithoprobe's Slave–Northern ... Open Access

Published: 01 October 2010
of the Phanerozoic Western Canada sedimentary basin overlie the Precambrian domains west of the long dashed line. Short dashed black lines show political boundaries. CS—Coronation Supergroup, SD—Sleepy Dragon, GSLsz—Great Slave Lake shear zone, AB—Alberta, BC—British Columbia, NWT—Northwest Territories, YK—Yukon
Image
(a) Total-field magnetics map. Major magnetics field features are labeled and the sub-Cambrian geological boundaries of Fig. 2 and transect location have been superimposed. The hachured area is a wedge of Proterozoic half-graben fill. c, Coppermine River Group (surface); d, Proterozoic Dismal Lakes Assemblage (subsurface) and Hornby Bay Group (surface); h, Proterozoic Hornby Bay Assemblage (subsurface) and Dismal Lakes Group (surface); m, Proterozoic Mackenzie–Shaler Assemblage (subsurface) and Mackenzie Mountains Supergroup (surface); s, Shaler Supergroup (surface); t, Tweed Lake Assemblage (subsurface); w, Proterozoic Windermere Supergroup. (b) Regional total-field magnetics map generated by the Continental Geoscience Division, Geological Survey of Canada, Ottawa, Ontario, Natural Resources Canada. The area covered by Fig. 4a is outlined. The hachured area is a wedge of Proterozoic half-graben fill. Solid lines outline regional features and terranes defined by Ross (1991). C, Coronation basement domain; F, Fort Simpson magmatic terrane; G, Great Bear magmatic terrane; H, Hottah accreted terrane; N, Nahanni accreted terrane; S, Slave Archean terrane. The broken lines mark the limit of a sinuous magnetic anomaly with a shallow source.

( a ) Total-field magnetics map. Major magnetics field features are labeled... Available to Purchase

Published: 19 February 2002
, Proterozoic Dismal Lakes Assemblage (subsurface) and Hornby Bay Group (surface); h, Proterozoic Hornby Bay Assemblage (subsurface) and Dismal Lakes Group (surface); m, Proterozoic Mackenzie–Shaler Assemblage (subsurface) and Mackenzie Mountains Supergroup (surface); s, Shaler Supergroup (surface); t, Tweed
Journal Article

Paleoproterozoic Stark Formation, Athapuscow Basin, Northwest Canada: Record of Cratonic-Scale Salinity Crisis Available to Purchase

Michael C. Pope, John P. Grotzinger
Published: 01 March 2003
Journal of Sedimentary Research (2003) 73 (2): 280–295.
DOI: https://doi.org/10.1306/091302730280
... geologic map, Athapuscow Basin, East Arm of Great Slave Lake (modified from Hoffman 1988 ). The Great Slave Lake Supergroup crops out in a gently south-plunging synclinorium with shallow dips on the northwest limb and steep, in many places overturned, and thrusted limbs, on the southeast limb. Areas...
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Journal Article

A synthesis of electromagnetic studies in the Lithoprobe Alberta Basement Transect: constraints on Paleoproterozoic indentation tectonics Free

D.E. Boerner, R.D. Kurtz, J.A. Craven, G.M. Ross, F.W. Jones
Published: 20 October 1999
Canadian Journal of Earth Sciences (2000) 37 (11): 1509–1534.
DOI: https://doi.org/10.1139/e00-063
...-Churchill collision. The shaded area in southeast Asia indicates the approximate extent of continental shelf. The axis of the Kiskatinaw conductor (KC) and the Red Deer conductor (RDC) are indicated by the thick lines in the right panel. The Great Slave Lake Supergroup has been interpreted ( Sami...
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Figure 3. Neoproterozoic reconstruction of Siberian craton and western Laurentia. Siberian craton facies are after Pelachaty et al. (1996); Laurentian facies are after Ross et al. (1995), Ross (1991), and Stewart (1972). Eastern margin of Windermere basin was west-dipping detachment fault (Warren, 1997). Uplifted footwall provided coarse feldspathic clastic sediments to asymmetric rift that opened north of Great Slave Lake shear zone (GSLSZ) and Angara-belt margin of Siberia into older ocean basin with Neoproterozoic shelf-slope break (Dalrymple and Narbonne, 1996). Peace River arch (PRA) formed source area at rift corner. Neoproterozoic carbonate shelf and slope on Siberia faced uplifted rift margin on Laurentia that provided granitic basement source rocks for gritty turbidites in northwest-flowing sediment dispersal system in Windermere Supergroup of Laurentia (Ross et al., 1995). Ediacaran fauna (E) occur in off-shelf environments on both margins.

Figure 3. Neoproterozoic reconstruction of Siberian craton and western Laur... Available to Purchase

Published: 01 May 2000
( Warren, 1997 ). Uplifted footwall provided coarse feldspathic clastic sediments to asymmetric rift that opened north of Great Slave Lake shear zone (GSLSZ) and Angara-belt margin of Siberia into older ocean basin with Neoproterozoic shelf-slope break ( Dalrymple and Narbonne, 1996 ). Peace River arch
Journal Article

Lower Proterozoic red beds, evaporites and secondary sedimentary uranium deposits from the East Arm, Great Slave Lake, Canada Available to Purchase

C. W. Stanworth, J. P. N. Badham
Published: 01 March 1984
Journal of the Geological Society (1984) 141 (2): 235–242.
DOI: https://doi.org/10.1144/gsjgs.141.2.0235
... Supergroup, East Arm of Great Slave Lake, District of Mackenzie Pap. geol. Surv. Can 1968 68-42 93 Hoffman P. F. Proterozoic paleocurrents and depositional history of the East Arm Fold Belt, Great Slave Lake Can J Earth Sci 1969 6 441 Hoffman P. F. Sutton J. Windley B. F...
View PDF for article title, Lower Proterozoic red beds, evaporites and secondary sedimentary uranium deposits from the East Arm, <span class="search-highlight">Great</span> <span class="search-highlight">Slave</span> <span class="search-highlight">Lake</span>, Canada
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Journal Article

The Paleoproterozoic Francevillian succession of Gabon and the Lomagundi-Jatuli event: COMMENT Open Access

A. Bekker, A. El Albani, A. Hofmann, J.A. Karhu, L. Kump, F. Ossa Ossa, N. Planavsky
Journal: Geology
Published: 01 July 2021
Geology (2021) 49 (7): e527.
DOI: https://doi.org/10.1130/G48829C.1
.... 271, p. 278 291, httpsdoi.org/10.1016/j.epsl.2008 .04.021. Hotinski, R.M., Kump, L.R., and Arthur, M.A., 2004, The effectiveness of the Paleoproterozoic biological pump: A d13C gradient from platform carbonates of the Pethei Group (Great Slave Lake Supergroup, NWT): Geological Society of America...
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Journal Article

Crustal eduction and slab-failure magmatism in an Orosirian (2.05–1.80 Ga) postcollisional cratonic foredeep: geochronology of Seton volcanics and Compton laccoliths, Tu Cho (Great Slave Lake), NWT, Canada Available to Purchase

Paul F. Hoffman, Francis A. Macdonald, Samuel A. Bowring, Jahandar Ramezani, Robert Buchwaldt, Robert S. Hildebrand, Joseph B. Whalen
Published: 01 May 2023
Canadian Journal of Earth Sciences (2023) 60 (10): 1359–1384.
DOI: https://doi.org/10.1139/cjes-2023-0011
.... Green box is Fig. 2 area. AL , Artillery Lake basin (Union Island Group outlier); BCH , Bear Creek Hills, frontal thin-skinned thrust ramp of Thelon orogen (Slave−Rae collision); CG , Coronation Gulf (Arctic Ocean); GBL , Great Bear Lake; GSL , Great Slave Lake; HP , Hearne province; MR...
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View PDF for article title, Crustal eduction and slab-failure magmatism in an Orosirian (2.05–1.80 Ga) postcollisional cratonic foredeep: geochronology of Seton volcanics and Compton laccoliths, Tu Cho (<span class="search-highlight">Great</span> <span class="search-highlight">Slave</span> <span class="search-highlight">Lake</span>), NWT, Canada
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Journal Article

Paleoproterozoic Iron Oxide Apatite (IOA) and Iron Oxide-Copper-Gold (IOCG) mineralization in the East Arm Basin, Northwest Territories, Canada Available to Purchase

E.G. Potter, L. Corriveau, B.A. Kjarsgaard
Published: 14 March 2019
Canadian Journal of Earth Sciences (2020) 57 (1): 167–183.
DOI: https://doi.org/10.1139/cjes-2018-0171
... Slave Supergroup rocks during formation of the East Arm fold-and-thrust belt ( Hoffman 1968 , 1988 ; Hoffman et al. 1977 ). Fig. 3. Mineral occurrences (stars) of the East Arm Basin of Great Slave Lake, exhibiting iron oxide and alkali-calcic alteration and related iron oxide apatite or iron...
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