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TitleCoates Lake Group in the Arctic Red River area, northern Mackenzie Mountains, Northwest Territories
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorFallas, K MORCID logo
SourceGeological Survey of Canada, Open File 8738, 2020, 17 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedNRCan photo(s) in this publication
File formatpdf
ProvinceNorthwest Territories
NTS106A/12; 106A/13; 106B/09; 106B/10; 106B/13; 106B/14; 106B/15; 106B/16; 106C/16; 106F/01; 106G/02; 106G/03; 106G/04
AreaGwich'in Settlement Region; Sahtu Settlement Region; Arctic Red River; Mackenzie Mountains; Bonnet Plume Lake; Ramparts River
Lat/Long WENS-132.0333 -129.9667 65.1917 64.6667
Subjectsstratigraphy; structural geology; economic geology; Science and Technology; Nature and Environment; stratigraphic analyses; bedrock geology; lithology; sedimentary rocks; limestones; dolostones; mudstones; shales; sandstones; conglomerates; structural features; faults; faults, normal; faults, thrust; intrusions; mineral potential; mineral deposits; copper; sulphide deposits; Coates Lake Group; Thundercloud Formation; Coppercap Formation; Neoproterozoic; Tonian; Windermere Supergroup; Mackenzie Mountains Supergroup; Little Dal Group; Katherine Group; Plateau Fault; Neptunist Fault; Grand Forks Fault; Backbone Fault; Phanerozoic; Paleozoic; Precambrian; Proterozoic
Illustrationslocation maps; geoscientific sketch maps; stratigraphic charts; photographs
ProgramGEM2: Geo-mapping for Energy and Minerals Mackenzie Corridor, Shield-to-Selwyn geo-transect, Mackenzie-Selwyn sub-activity
Released2020 08 18
AbstractThe Neoproterozoic Coates Lake Group is a known host for copper mineralization in the central Mackenzie Mountains. The previously documented 300 km long northwest-southeast trending outcrop belt of Coates Lake Group is extended by approximately 85 km to the northwest based on mapping observations from the Geo-mapping for Energy and Minerals program of the Geological Survey of Canada. Two units of the Coates Lake Group, Thundercloud Formation and Coppercap Formation, are herein documented from the Bonnet Plume Lake (NTS 106B) and Ramparts River (NTS 106G) map areas, including the region around Arctic Red River. No evidence of copper mineralization within the Coates Lake Group was observed in the Bonnet Plume Lake or Ramparts River map areas; however, observations in the region are limited.
Summary(Plain Language Summary, not published)
This report documents the distribution of a copper-bearing map unit known as the Coates Lake Group in the northwestern Mackenzie Mountains of the Northwest Territories, in a region where it had not previously been documented. No copper mineralization was observed in the newly documented area.

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