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OPEN FILE 517

National Geochemical Reconnaissance Release NGR 28-1977

Regional stream sediment and water geochemical reconnaissance data, Northwestern British Columbia, NTS 104N

          This file relates to data acquired under the Federal-Provincial Uranium Reconnaissance Program, the provincial part being financed through the Canada-British Columbia Agreement on a Uranium Reconnaissance Program.

          The project was jointly planned by the Geological Survey of Canada and the British Columbia Ministry of Mines and Petroleum Resources, The contracts for field work, sample preparation and sample analysis were let, supervised and monitored by the Geochemistry Section, Geological Survey of Canada.

          The survey covers approximately 12,500 km ² (4800 mi ²) at an average sample density of one sample per 13 km ² (5 mi ²). Stream sediments were analyzed for U, Zn, Cu, Pb, Ni, Co, Ag, Mn, Fe, Mo and Hg. Stream waters were analyzed for U, F and pH.

          The Open File consists of 12 geochemical maps, sample location map and a text of field observations and analytical and statistical data.

          This file will be placed on Open File for inspection from 1:00 p.m. EDT, Thursday, June 15, 1978 (and equivalent local times) at all the libraries of the Geological Survey of Canada, at the British Columbia Ministry of Mines and Petroleum Resources, Room 418, Douglas Building, Victoria, the Gold Commissioner's office, Vancouver, the offices of the B.C. Government Agent, Atlin, B.C. and the Resident Geologist, Whitehorse, Yukon Territory, and at the Ontario Ministry of Natural Resources, Public Service Centre, 6th Floor, Whitney Block, Queen's Park, Toronto, Ontario.

          A limited number of white prints and text will be available for sale at Victoria, Vancouver and Atlin, British Columbia. White print and text copies may also be obtained at the user's expense by application to Campbell Reproductions, 880 Wellington Street, Ottawa, Ontario, K1R 6K7. The field observations and analytical data in the text from which the maps were prepared were also available in a digital form at the user's expense from The Director, Computer Science Centre, Department of Energy, Mines and Resources, 588 Booth Street, Ottawa, Ontario, K1A 0E8.