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 1646
Previous OF publication(s):
Province / Territory: British Columbia
Funding Source: Federal and Provincial
Year of Collection: 1987
# Lake sites: 0
# Stream sites: 1218
Survey Area: 17064 km²
NTS Sheet(s): 104F, 104G
The regional stream survey for Sumdum and Telegraph Creek, B.C. (NTS 104F and 104G) was conducted during the summer of 1987.
This report presents analytical and statistical data for 20 elements in stream sediments from 1,218 sample sites, collected at an average density of one sample per 14.0 km². Loss-on-ignition in sediments, and uranium, fluoride, and pH values in waters from these sites are included in this report.
Analytical Data
| variable | method | detection limit | year of analysis |
|---|---|---|---|
| Antimony | HY-AAS | 0.2 ppm | 1987 |
| Arsenic | HY-AAS | 1 ppm | 1987 |
| Barium | XRF | 20 ppm | 1987 |
| Cadmium | AAS | 0.2 ppm | 1987 |
| Cobalt | AAS | 2 ppm | 1987 |
| Copper | AAS | 2 ppm | 1987 |
| Fluorine | ISE | 40 ppm | 1987 |
| Gold | FA-NA | 1 ppb | 1987 |
| Iron | AAS | 0.02 pct | 1987 |
| Lead | AAS | 2 ppm | 1987 |
| Loss-on-ignition | GRAV | 0.2 pct | 1987 |
| Manganese | AAS | 5 ppm | 1987 |
| Mercury | CV-AAS | 10 ppb | 1987 |
| Molybdenum | AAS | 1 ppm | 1987 |
| Nickel | AAS | 2 ppm | 1987 |
| Silver | AAS | 0.2 ppm | 1987 |
| Tin | AAS | 2 ppm | 1987 |
| Tungsten | COL | 2 ppm | 1987 |
| Uranium | NADNC | 0.5 ppm | 1987 |
| Vanadium | AAS | 5 ppm | 1987 |
| Zinc | AAS | 2 ppm | 1987 |
| variable | method | detection limit | year of analysis |
|---|---|---|---|
| Fluoride | ISE | 20 ppb | 1987 |
| Uranium | LIF | 0.05 ppb | 1987 |
| pH | GCM | 1987 |
- Acknowledgements:
-
The reconnaissance surveys were undertaken by the British Columbia Ministry of Energy Mines and Petroleum Resources in conjunction with the Geological Survey of Canada.
Funding was provided in part by the GSC under a "Letter of Understanding" for a Cooperative Project and by the Canada - British Columbia Mineral Development Agreement (1985 - 1989).
P.F. Matysek directed the British Columbia Ministry of Energy Mines and Petroleum Resources activities.
E.H.W. Hornbrook directed the Geological Survey of Canada activities.
- Collection:
-
Contractor and supervisor details for sample collection Category Responsible Party Contractor: McElhanney Engineering Services, Vancouver, BC Supervisor: J.L. Gravel, BCMEMPR - Preparation:
-
Contractor and supervisor details for sample preparation Category Responsible Party Contractor: Golder Associates, Ottawa, ON Supervisor: J.J. Lynch, GSC - Analysis:
-
Contractor and supervisor details for sample preparation Category Responsible Party Contractor: Bondar-Clegg & Company Ltd., Ottawa, ON Chemex Labs Limited, North Vancouver, BC Supervisor: J.J. Lynch, GSC and P.F. Matysek, BCMEMPR
- Other information:
-
Gold usually determined on 10-gram sample, allowing a detection limit of 1 ppb; sample weights less than 10 grams resulted in a detection limit of 2 ppb. Sample weights less that 5 grams not analyzed.
- Date modified: