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TitleGeology and mineral occurrences, Mazenod Lake - Lou Lake area, Northwest Territories
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorGandhi, S S; Montreuil, J -F; Corriveau, LORCID logo
SourceGeological Survey of Canada, Canadian Geoscience Map 148, 2014, 1 sheet, Open Access logo Open Access
Alt SeriesNorthwest Territories Geoscience Office, NWT Open Report 2013-004
PublisherNatural Resources Canada
Maps1 map
Map Info.geological, bedrock geology, structural features, 1:50,000
ProjectionUniversal Transverse Mercator Projection, UTM zone 11 (NAD83)
Mediaon-line; digital
RelatedNRCan photo(s) in this publication
File formatreadme
File formatpdf; shp; xml; rtf; xls; JPEG2000
ProvinceNorthwest Territories
NTS85N/06NE; 85N/07NW; 85N/07NE; 85N/08NW; 85N/09SW; 85N/09NW; 85N/10; 85N/11SE; 85N/11NE; 85N/14SE; 85N/15SE; 85N/15SW; 85N/16SW
AreaMazenod Lake; Lou Lake
Lat/Long WENS-117.1775 -116.4153 63.8850 63.4433
Subjectsstratigraphy; structural geology; bedrock geology; sedimentary rocks; shales; sandstones; igneous rocks; rhyolites; rhyodacites; granites; diorites; andesites; structural features; Archean; La Martre Falls Formation; Old Fort Island Formation; Great Bear Magmatic Zone; Faber Group; Mazenod Lake volcanic assemblage; Cole Lake volcanic assemblage; Dianne Lake volcanic assemblage; Lou Lake volcanic assemblage; Early Great Bear intrusions; Treasure Lake Group; Snare Group; Coronation Margin; Yellowknife Supergroup; Precambrian; Proterozoic
Illustrationslocation maps
ProgramGEM: Geo-mapping for Energy and Minerals Iron-oxide Copper-gold (IOCG) / Multiple Metals - Great Bear Lake (NWT)
Released2014 03 02
AbstractThe Mazenod Lake - Lou Lake area is centred in the southern Great Bear magmatic zone, Wopmay Orogen, Northwest Territories. The area comprises a 1.87-1.84 billion year old volcanic and plutonic terrane interpreted as a continental magmatic arc that developed on a locally exposed metamorphosed and tilted sedimentary basin. Intense alteration is superimposed on supracrustal rocks culminating in a diversity of mineral occurrences that range from iron-oxide-copper-gold (IOCG), including the NICO and Sue-Dianne deposits, to late vein-hosted uranium deposits, including the past-producing Rayrock Mine. This geological map was compiled in 1999 following Geological Survey of Canada fieldwork from 1987 until 1996, initially under the Canada-Northwest Territories Mineral Development Subsidiary Agreement (1987-1991). Updates and transformation of this map into a GIS-ready publication was supported by Multiple Metals - Great Bear Region, Geomapping for Energy and Minerals Program, Geological Survey of Canada and the Northwest Territories Geoscience Office.
Summary(Plain Language Summary, not published)
This geological map of the Mazenod and Lou Lake area covers the south end of an ancient volcanic belt of the Northwest Territories named Great Bear magmatic zone. The area hosts the two Iron Oxide Copper-Gold (IOCG) deposits discovered in Canada: NICO and Sue Dianne (gold, cobalt, bismuth, copper, silver). Resources total 40 million tons (Mt) and the Multiple Metals?Great Bear Project, Geomapping for Energy and Minerals Program (GEM, 2008-2013), launched by the Geological Survey of Canada and the NWT Geoscience Office, has now shown a broader IOCG and affiliated deposit potential for base, precious, high-technology, green-energy and nuclear metals. This geological map, compiled by Dr. Sunil Gandhi in 1999 under contract for Hudson Bay Exploration, is based on data gathered under the Canada-Northwest Territories Mineral Development Subsidiary Agreement (1987-1991) and updated by GEM. Last spring, the Tlicho government opened the area for mineral exploration. Publication of this map in support of future mineral exploration and resource development is therefore very timely.

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