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Kewagama Group

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Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1991
DOI: 10.5382/GB.10.09
EISBN: 9781934969632
... Abstract This stop presents the northern contact of the volcanic rocks of the Blake River Group with the sedimentary rocks of the Kewagama Group. The nature of this contact is highly debated. It is concordant but locally faulted in a homoclinal sequence with tops to the SW from the Kewagama...
Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1991
DOI: 10.5382/GB.09
EISBN: 9781934969625
Journal Article
Published: 01 November 1996
Canadian Journal of Earth Sciences (1996) 33 (11): 1556–1569.
... content, structural styles, and geochemical affinities of the volcanic and plutonic rocks. The Malartic Composite Block is bounded to the south by the sedimentary rocks of the Kewagama Group that have been also affected by deformation. The crosscutting relationships between the structural elements, along...
Journal Article
Published: 01 January 1993
Canadian Journal of Earth Sciences (1993) 30 (1): 29–41.
... of Kenoran deformation in this area and intrudes sedimentary rocks of the Kewagama Group which contain detrital zircons as young as 2687 Ma. These data suggest that the Kewagama Group is the same age as late sedimentary sequences such as the Timiskaming Group and may have been deposited in a similar tectonic...
Series: Society of Economic Geologists Guidebook Series
Published: 01 January 1991
DOI: 10.5382/GB.09
EISBN: 9781934969625
.... The Kewagama Group, located to the south of the Malartic Group, contains beds of metawacke and metapelite which have undergone two distinct folding events.axial planes related to the first folding event, oriented northwest, have been reoriented during a second phase of deformation that generated folds whose...
Journal Article
Published: 01 November 1984
Canadian Journal of Earth Sciences (1984) 21 (11): 1305–1314.
...Jean Lajoie; John Ludden Abstract We present an interpretation of the petrology of two Archean sedimentary groups in the southeastern portion of the Abitibi greenstone belt: (1) the Pontiac sediments, which represent an assemblage of quartz-rich sandstones, and (2) the Kewagama sediments, which...
Journal Article
Journal: GSA Bulletin
Published: 01 January 1990
GSA Bulletin (1990) 102 (1): 147–158.
... erupted into a very shallow subaqueous setting. Turbidites in the Kewagama and Cadillac groups originated from the volcanic complexes and accumulated in the form of subaqueous fans, whereas those in the Pontiac Group are from an unknown source and accumulated on an abyssal plain. In this context...
Journal Article
Published: 01 August 1968
Canadian Journal of Earth Sciences (1968) 5 (4): 773–790.
...W. R. A. Baragar Abstract The results of detailed mapping and sampling of two sections of Blake River Group volcanic rocks in the Noranda, Quebec region are presented and discussed. The Duparquet section, west of Lac Duparquet, crosses the north limb of a regional synclinorium where the assemblage...
Journal Article
Published: 01 September 2022
Canadian Journal of Earth Sciences (2022) 59 (9): 540–565.
... to felsic volcanic rocks of the Louvicourt Group, intermediate to mafic volcanic rocks of the Blake River Group, and wacke and mudstone of the Kewagama, Cadillac, and Pontiac groups ( Figs. 1 and 2 ). Farthest north, the ca. 2714–2704 Ma Malartic Group consists of komatiitic flows and basaltic...
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Journal Article
Published: 01 April 2000
Canadian Journal of Earth Sciences (2000) 37 (1): 95–114.
... (Cadillac, Kewagama, and Lac Caste groups; e.g., Imreh 1984 ; Desrochers et al. 1993 ; Desrochers and Hubert 1996 ). The komatiitic to calc-alkaline dacitic volcanic rocks are intruded by synvolcanic to late-tectonic plutons and dioritic to granitic dykes. Fig. 1. Geological map of the Val d’Or...
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Journal Article
Published: 13 November 2013
Geochemistry: Exploration, Environment, Analysis (2013) 13 (4): 317–336.
... and Lanaudiere, La Motte-Vassan Formations in Quebec; and (2) the 2704–2695 Ma episode comprising the Lower and Upper Blake River assemblages in Ontario and the Villebon and Blake River groups in Quebec. Summaries of the metallogeny of volcanogenic massive sulphide (VMS) deposits in the AGB are provided...
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Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2020
DOI: 10.5382/SP.23.02
EISBN: 9781629496429
... of the Cadillac and Kewagama groups. Rocks of the Cadillac Group rest unconformably or disconformably on older volcanic rocks of the Blake River Group ( Gunning and Ambrose, 1940 ; Mercier-Langevin et al., 2007a ) and have a maximum depositional age of ~2685 Ma, as constrained by U-Pb dating of detrital zircon...
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Journal Article
Journal: Economic Geology
Published: 01 June 2007
Economic Geology (2007) 102 (4): 585–609.
... the LaRonde Penna deposit. It is in structural contact with the underlying younger sedimentary rocks of the Kewagama Group (ca. 2686 Ma: Davis, 2002 ) along the Lac Parfouru fault (Fig. 1 ). The present thickness varies from about 1,000 to 1,200 m immediately north of the LaRonde Penna mine. It consists...
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Journal Article
Published: 27 June 2018
Canadian Journal of Earth Sciences (2018) 55 (10): 1139–1157.
... volcaniclastic deposits of transitional to calc-alkaline affinity ( Scott et al. 2002 ). The sedimentary basins in the Abitibi belt have been divided into two distinct environments by Mueller and Donaldson (1992) : ( i ) the flysch-type turbiditic facies of the Kewagama and Cadillac groups ( Fig. 2 ) and ( ii...
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Journal Article
Published: 01 January 2006
Exploration and Mining Geology (2006) 15 (1-2): 27–43.
... to ultramafic volcanic rocks of the Kinojévis group (2722–2718 Ma; Barrie, 1999 ; Zhang et al., 1993 ), Hébécourt Formation (2706–2701 Ma; Corfu and Noble, 1992 ), and Blake River group (2698 Ma; Mortensen, 1993 ). Rocks of the Kewagama group (2686–2684 Ma; Davis, 2002 ) are younger than the volcanic...
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Journal Article
Journal: Economic Geology
Published: 01 January 2014
Economic Geology (2014) 109 (1): 27–59.
... system to the south ( Fig. 2A ). At several localities, rocks of the Blake River Group are overlain by turbiditic deposits of the Cadillac Group or the Kewagama Group, both younger than ca. 2687 Ma ( Goutier, 1997 ; Davis, 2002 ; Lafrance et al., 2005 ; Mercier-Langevin et al., 2007a ). Locally...
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Journal Article
Published: 02 April 2000
Canadian Journal of Earth Sciences (2000) 37 (2-3): 135–164.
... or as ocean plateaus. These turbidites are first cycle volcanogenic sediments shed off the intraoceanic volcanic plateaus. Compositions signify a provenance of 90% mafic to ultramafic rocks and 10% felsic igneous rocks. Low mafic element turbidites, such as the Kewagama Group, and Dome and Beatty Formations...
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Journal Article
Journal: Economic Geology
Published: 01 January 2014
Economic Geology (2014) 109 (1): 167–182.
... separates the Blake River Group from the wacke, siltstone, and argillite of the <2687 Ma ( Davis, 2002 ) Kewagama Group. Turbiditic sedimentary rocks of the Cadillac Group, which are younger than 2687 Ma ( Davis, 2002 ), overly the Blake River Group. The E-W–striking Larder Lake-Cadillac fault zone...
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Series: Society of Economic Geologists
Published: 01 January 2017
DOI: 10.5382/Rev.19.05
EISBN: 9781629491172
... is composed mainly of several cycles of mafic to felsic volcanic rocks. Two dominantly sedimentary groups postdate the volcanic rocks, namely the older, graywacke-rich Pontiac Group (including the likely correlative Kewagama and, in part, Cadillac and Hearst groups) and the younger Timiskaming Group. The term...
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Series: Society of Economic Geologists
Published: 01 January 2017
DOI: 10.5382/Rev.19.01
EISBN: 9781629491172
... ; this paper) Kewagama Group Caste Fm. Mont-Brun Fm. Rouyn-Noranda, Doyon-Bousquet-LaRonde, Preissac Lake, Cadillac, Malartic, and Val-d’Or areas ( De Souza et al., 2017 ; Houlé et al., 2017 ; Mercier-Langevin et al., 2017a , b ; Poulsen, 2017 ; this paper) Porcupine Group Beatty Fm. Timmins...
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