GSC Open File Release Notices

OPEN FILES 730 TO 749

National geochemical reconnaissance 1:2 000 000 coloured compilation map series; Resource Geochemistry Subdivision, Resource Geophysics and Geochemistry Division, Geological Survey of Canada

          The National geochemical Reconnaissance 1:2 000 000 Coloured Compilation Map Series is a product of the continuing interpretation of the National Geochemical Reconnaissance (NGR) data. Variables have been computer contoured and plotted utilizing an Applicon colour plotter. Xerox colour copies of these maps are available in a series of 20 open files:

 

Open File
730	Northern Yukon and Northwest Territories (117A and parts of 117B, C, D)
731	Central Yukon Territory (106D, 116A, B and parts of 106C, E, F and 116C, F, G, H)
732	Quiet Lake, Southern Yukon Territory (105F)
733	Southern Yukon Territory and Northern British Columbia (104N, O, P and 105B)
734	Prince Rupert Area, British Columbia (103I, P and parts of 103J, O)
735	Taseko Lakes and Bonaparte Lake area, British Columbia (92O and 92P)
736	Southeastern British Columbia (82E, F, K, L and M)
737	Baffin Island, Northwest Territories (27B and part of C; 37A, D)
738	Melville Peninsula, Northwest Territories (46N, O, P; 47A(S½) and 47B (S½))
739	Baker Lake, Northwest Territories (55M, 65P)
740	Great Bear Lake, Northwest Territories (86K, L and part of 96I)
741	Nonacho Lake, Northwest Territories (75C, F and K)
742	Northern Manitoba, Southeastern Northwest Territories and Northeastern Saskatchewan (54L, M; 64I, J, K, N, O, P and parts of 64L, M; 65A, B, C)
743	West-Central Saskatchewan (74F and 74C(N½))
744	East-Central Saskatchewan (63M, 64D and parts of 63K, L, N and 73I, O, P and 74A)
745	Southwestern Ontario (52B, C)
746	Lake Superior Ontario (52A, 52H(S½), 42D, 42E(S½), 42C, 42F(S½), 41N, 41K(N½))
747	Southeastern Ontario (31C(N½), 31F)
748	Northern Labrador (23G(NE½), 23H(N½), 23I, 23J(E½), 14D, 13N, 13M, 13L(N½))
749	Eastern Labrador (13B, F, G, H, I, J and O; 3E)

 

          In the course of NGR surveys (1975-1979), sediment and water samples were collected from more than 23 000 streams and 41 000 lakes in Canada. The surveys were carried out under the auspices of the Federal-Provincial Uranium Reconnaissance Program (URP) and Provincial Geochemical Reconnaissance Surveys. Sediments from all areas were analyzed for U, Zn, Cu, Pb, Ni, Co, Mn, Fe, Mo and those from some areas for Hg, Ag, As, V, F, W, Sn and Ba. When collected, waters were analyzed for one or all of U, F and pH. The source data have been previously published as Geological Survey of Canada Open Files and Provincial releases at a 1:250 000 scale.

          Each of the 20 Open Files consists of from 11 to 17 Xerox coloured maps, a sample location map and descriptive text.

          These files will be placed on open file for inspection February 25, 1981 at all Geological Survey of Canada libraries; Resident Geologist's office, Department of Indian and Northern Affairs, Bellanca Building, P.O. Box 1500, Yellowknife, Northwest Territories, X1A 2R3 (Open Files 737, 738, 739, 740, 741 and 742 only); and Resident Geologist's office, Department of Indian and Northern Affairs, 200 Range Road, Whitehorse, Yukon Y1A 3V1 (Open Files 730, 731, 732 and 733 only).

          Copies may be obtained at the user's expense only from Campbel Reproductions, 880 Wellington Street, Ottawa, Ontario, K1R 6K7.