NGR Open Files
Archived information
The database from which the NGR Open File metadata was extracted is unilingual and is not being actively maintained. It contains information that is not readily available elsewhere.
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
# 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.
Analytical Data
| 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 |
| 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 modified: