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Dossier Public 2358



Open File:  2358
Previous OF publication(s):  0516, 0411
Province / Territory:  British Columbia
Funding Source:  Federal and Provincial (1976/77 & 1990)
Year of Collection:  1976

Survey Type:  Regional Stream Survey
# Lake sites:  0
# Stream sites:  1152
Survey Area:  15452 km²
NTS Sheet(s):  082M

Geological Survey of Canada (GSC) Open File 411 presented analytical and statistical data for 11 elements, including tungsten, in 708 stream sediment samples collected in 1976 from the Seymour Arm (82M) map sheet. In 1977, an additional 444 samples from the Seymour Arm map sheet were collected and analyzed. GSC Open File 516, published in 1978, contained data from samples collected in 1976 and 1977. However, data for tungsten from 1976 samples were not published, and data for mercury from 1977 samples were included.

In 1990, under the British Columbia Ministry of Energy, Mines and Petroleum Resources (BCMEMPR) Regional Geochemical Survey (RGS) Archive Program, the samples collected in 1976 and 1977 were analyzed by Instrumental Neutron Activation Analysis (INAA). These new data for gold and 25 other elements, along with original survey results, were published in 1991 as BCMEMPR RGS 33 / GSC Open File 2358.

location map for Open File 2358
legend to accompany location map for Open File

Analytical Data

Sediments
variable method detection limit year of analysis
Antimony INAA 0.1 ppm 1990
Arsenic INAA 0.5 ppm 1990
Barium INAA 100 ppm 1990
Bromine INAA 0.5 ppm 1990
Cerium INAA 10 ppm 1990
Cesium INAA 0.5 ppm 1990
Chromium INAA 5 ppm 1990
Cobalt INAA 5 ppm 1990
Cobalt AAS 2 ppm 1976
Copper AAS 2 ppm 1976
Gold INAA 2 ppb 1990
Hafnium INAA 1 ppm 1990
Iron INAA 0.2 pct 1990
Iron AAS 0.02 pct 1976
Lanthanum INAA 5 ppm 1990
Lead AAS 2 ppm 1976
Lutetium INAA 0.2 ppm 1990
Manganese AAS 5 ppm 1976
Mercury CV-AAS 10 ppb 1977
Molybdenum INAA 1 ppm 1990
Molybdenum AAS 2 ppm 1976
Nickel INAA 10 ppm 1990
Nickel AAS 2 ppm 1976
Rubidium INAA 5 ppm 1990
Samarium INAA 0.5 ppm 1990
Scandium INAA 0.5 ppm 1990
Silver AAS 0.2 ppm 1976
Sodium INAA 0.1 pct 1990
Tantalum INAA 0.5 ppm 1990
Terbium INAA 0.5 ppm 1990
Thorium INAA 0.5 ppm 1990
Tungsten INAA 2 ppm 1990
Tungsten COL 2 ppm 1976
Uranium INAA 0.2 ppm 1990
Uranium NADNC 0.2 ppm 1976
Ytterbium INAA 2 ppm 1990
Zinc AAS 2 ppm 1976
Zirconium INAA 200 ppm 1990
Waters
variable method detection limit year of analysis
Fluorine ISE 20 ppb 1976
Uranium FLU 0.05 ppb 1976
pH GCM 1976

Acknowledgements:

The regional stream survey of the Seymour Arm, British Columbia map sheet (NTS 082M) was undertaken by the GSC in conjunction with the BCMEMPR under the terms of the Canada - British Columbia Agreement on a Uranium Reconnaissance Program. Fisheries and Environment Canada provided funds for the determination of mercury.

E.H.W. Hornbrook directed the GSC activities. N.C. Carter directed BCMEMPR activities (1976 and 1977).

P.F. Matysek and W. Jackaman (BCMEMPR) managed the RGS Archive Program (1990). This initiative was funded in part by the Canada-British Columbia Mineral Development Agreement (1985-1990).

Contracts were let to the following companies for sample collection, preparation and analysis.

Collection:
Contractor and supervisor details for sample collection
Category Responsible Party
Contractor: Stokes Exploration Management, Vancouver, BC (1976 and 1977)
Supervisor: S.B. Ballantyne, GSC, and T.E. Kalnins, BCMEMPR (1976 and 1977)
Preparation:
Contractor and supervisor details for sample preparation
Category Responsible Party
Contractor: Golder Associates, Ottawa, ON (1976 and 1977) Rob Phillips, Ottawa, ON (1990)
Supervisor: J.J. Lynch, GSC (1977)
Analysis:
Contractor and supervisor details for sample preparation
Category Responsible Party
Contractor: Chemex Labs Limited, Vancouver, BC (1976 and 1977) Atomic Energy of Canada Ltd., Ottawa, ON (1976 and 1977) Becquerel Laboratories Inc., Mississauga, ON (1990)
Supervisor: J.J. Lynch, GSC, and W.M. Johnson, BCMEMPR (1976 and 1977)

Other information:

Tungsten data available for 209 samples (of 708) collected in 1976. Mercury data available for 444 sites visited in 1977.

Date de modification