Bedrock Geology, Cunningham Lake
BCMEMPR Open File 1999-11
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Open File map 1999-11 presents the preliminary bedrock geology of the Cunningham Lake area, Central British Columbia at 1:100,000 scale. The map is in colour and is based on fieldwork completed by the BC Geological Survey and Geological Survey of Canada during the 1997 and 1998 field seasons as part of the Nechako Natmap project. It builds on previous regional scale mapping by J. Armstrong of the Geological Survey of Canada dating back to 1949. The new mapping presents significant revisions to previous geologic maps of the area.
The Cunningham Lake area, which covers parts of Babine, Stuart and Trembleur Lakes, is located north of Burns Lake and west of Fort St. James. This area spans the boundary between the Stikine and Cache Creek geologic terranes. Within the Cache Creek terrane is the Sitlika volcanic belt considered to be prospective for Kutcho Creek type massive sulphide deposits. This belt is well exposed at several localities within the map area. Prior to the current mapping, this belt was believed restricted to the Takla Lake area to the north. Other important mineral prospects in the area include the Mac porphyry molybdenum deposit and the new Fort occurrence discovered in 1998.
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