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Coppercap Formation

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Journal Article
Published: 01 January 1979
Canadian Journal of Earth Sciences (1979) 16 (1): 50–59.
... on the prospect is structurally controlled and occurs in siliceous dolostone near the top of the folded and faulted Coppercap Formation, directly beneath an unconformity separating two local members of the Sayunei Formation (Rapitan Group). The copper was emplaced in tectonically fractured dolostone, precipitated...
Journal Article
Journal: Geology
Published: 10 December 2020
Geology (2021) 49 (4): 442–446.
... investigated the ca. 735 Ma Coppercap Formation in northwestern Canada, a unit that preserves large shifts in carbonate δ 13 C values that have been utilized in global correlations and have canonically been explained through large shifts in organic carbon burial. Under the backdrop of these δ 13 C shifts, we...
FIGURES
Journal Article
Journal: Economic Geology
Published: 01 November 2017
Economic Geology (2017) 112 (7): 1773–1806.
...-bounded intracontinental rift basins. Mineralization at Coates Lake, the largest of these deposits, is concentrated within microbial laminite layers in the transition zone between underlying continental red beds of the Redstone River Formation and overlying marine carbonates of the Coppercap Formation...
FIGURES | View All (21)
Journal Article
Journal: Economic Geology
Published: 01 April 1985
Economic Geology (1985) 80 (2): 325–343.
... the continental red beds of the Redstone River Formation and shallow restricted marine carbonates of the overlying Coppercap Formation. A mafic volcanic succession lying stratigraphically beneath the red beds possibly provided copper-bearing detritus to the red beds.The Coates Lake deposit, the object...
Image
GeoEye, 50-cm resolution, satellite image of the east face of <span class="search-highlight">Coppercap</span> Mou...
Published: 01 November 2017
to CP6 are members of the Coppercap Formation (see Fig. 3 ). Stratiform copper mineralization occurs within CP1, the transition zone. RR4 is the hematitic sandstone and siltstone dominated distal alluvial fan facies of the Redstone River Formation. RR4 has a minimum true thickness of approximately 1,200
Image
(A) Schematic pore fluid pressure vs. depth curve through the Coates Lake b...
Published: 01 November 2017
Fig. 21. (A) Schematic pore fluid pressure vs. depth curve through the Coates Lake basin at ~635 Ma. Note hydrostatic gradient within overpressured compartment beneath the CP2 to CP7 members of the Coppercap Formation. (B) Schematic cross section showing the geologic setting at 635 Ma during
Image
Regional correlation of Mesoproterozoic–Neoproterozoic sedimentary strata b...
Published: 30 June 2017
, except for Coppercap Formation ( Rooney et al., 2015 ) and Little Dal Basalt ( Milton et al., 2017 ).
Image
Map of the study area adapted from  Crockford et al. (2016) , and sedimenta...
Published: 10 December 2020
Figure 1. Map of the study area adapted from Crockford et al. (2016) , and sedimentary facies stratigraphically plotted with geochemical data. Errors on measurements are in the lower-right corner of panels. Black—Re-Os date measured on a different Coppercap Formation section ( Rooney et al
Image
Regional stratigraphy, Mackenzie Mountains, NWT, Canada. Sediment-hosted st...
Published: 01 November 2017
Fig. 2. Regional stratigraphy, Mackenzie Mountains, NWT, Canada. Sediment-hosted stratiform copper (SSC) deposits in the Redstone copper belt are mainly hosted in the basal member of the Coppercap Formation (CP1, thick black line). Age constraints for stratigraphic units are from the following
Image
A: Schematic stratigraphy of sample locations 1–4, adapted from  Bodiselits...
Published: 01 May 2015
) , and Strauss et al. (2014) . Ton.—Tonian; Ed.—Ediacaran; Gp.—Group; Fm.—Formation; Conglom.—Conglomerate; U.R.—Upper Roan; SHPB—Sheepbed Formation; Lk—lake; Cu-cap.—Coppercap Formation; Thund.—Thundercloud Formation; T.S.—Ten Stone Formation; S.S.—Snail Spring Formation; A.—assemblage; Mt.—Mount; Mtns
Journal Article
Published: 01 March 1984
Journal of the Geological Society (1984) 141 (2): 291–297.
... marine carbonates of the overlying Coppercap Formation (Table 1; Jefferson 1978; Ruelle 1978, 1982). The Coates Lake showing is one of three important occurrences of stratiform copper along the 250 km-long Redstone copperbelt. The transition beds are underlain by a thick section of red-bed clastics...
Journal Article
Journal: Geology
Published: 01 April 2015
Geology (2015) 43 (4): 323–326.
..., with positive δ 13 C values of the Matheos Formation and the subsequent downturn within the Marian Bohkahko Formation below the Negash diamictite being correlative with similar values in the Coppercap Formation of northwestern Canada ( Fig. 2 ). Zircons separated from 3 tuffs yield U-Pb ID-TIMS 206 Pb...
FIGURES
Journal Article
Journal: Geology
Published: 01 May 2015
Geology (2015) 43 (5): 459–462.
...) , and Strauss et al. (2014) . Ton.—Tonian; Ed.—Ediacaran; Gp.—Group; Fm.—Formation; Conglom.—Conglomerate; U.R.—Upper Roan; SHPB—Sheepbed Formation; Lk—lake; Cu-cap.—Coppercap Formation; Thund.—Thundercloud Formation; T.S.—Ten Stone Formation; S.S.—Snail Spring Formation; A.—assemblage; Mt.—Mount; Mtns...
FIGURES
Journal Article
Journal: GSA Bulletin
Published: 01 July 2013
GSA Bulletin (2013) 125 (7-8): 1203–1223.
... anomaly at the top of the Beck Spring Dolomite is regionally correlative with the negative δ 13 C anomaly in the lower portion of the Coppercap Formation in NW Canada ( Halverson, 2006 ), and that both are globally correlative to the pre-Sturtian Islay anomaly. Thus, we suggest that the upper Crystal...
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Journal Article
Published: 01 June 1984
Bulletin of Canadian Petroleum Geology (1984) 32 (2): 139–146.
...). STRATIGRAPHY PRECAMBRIAN STRATA NORTHWEST OF THE FORT NORMAN STRUCTURE In the region of Franklin Mountains and Mackenzie and Great Bear Plains, northwest of the Fort Norman Struc- ture (Fig. 1), Lower Cambrian sandstones rest unconform- ably upon various formations of the 'Mackenzie Mountains supergroup...
Journal Article
Published: 30 January 2012
Canadian Journal of Earth Sciences (2012) 49 (2): 455–476.
... generated fault grabens, promoted basin restriction, and possibly caused glaciation ( Eyles 2008 ; Young 2002 ). The Coates Lake Group consists of the “Little Dal basalt”, the Thundercloud, Redstone River, and Coppercap formations; sedimentary-hosted copper deposits are associated with the Redstone River...
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Journal Article
Journal: GSA Bulletin
Published: 30 June 2017
GSA Bulletin (2017) 129 (11-12): 1408–1423.
..., except for Coppercap Formation ( Rooney et al., 2015 ) and Little Dal Basalt ( Milton et al., 2017 ). ...
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Journal Article
Journal: GSA Bulletin
Published: 17 October 2019
GSA Bulletin (2020) 132 (5-6): 1119–1149.
... al., 2007b ) are interpreted to end at or soon after the 735 Ma anomaly ( Fig. 12 ). The Coppercap Formation of the Coates Lake Group of northwestern Canada preserves carbonate stratigraphy that records δ 13 C values >5‰ after the nadir of the 735 Ma anomaly ( Halverson, 2006 ; Rooney et al...
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Journal Article
Journal: GSA Bulletin
Published: 01 January 2017
GSA Bulletin (2017) 129 (1-2): 38–58.
... alluvial-fan conglomerates ( Eisbacher, 1981 ; Jefferson and Parrish, 1989 ). The Hayhook event faults are also associated with tight folds beneath a prominent angular unconformity; for example, in the Nite Creek area ( Fig. 1 ), folds in the Coppercap and Sayunei Formations that are overturned...
Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP424.6
EISBN: 9781862399563
... dolostone has a Re–Os age of 739.9±6.5, providing a date for the Islay excursion ( Strauss et al. 2014 ). Additionally, the basal Callison Lake dolostone has a Re–Os age of 752.7±5.5 Ma ( Rooney et al. 2015 ). A Re–Os age of 732.2±4.7 Ma is from the organic-rich limestone of the Coppercap Formation...
FIGURES | View All (11)