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 2690
Previous OF publication(s): 0559, 1209
Province / Territory: Newfoundland & Labrador
Funding Source: Federal and Provincial (1979, 1986 and 1993)
Year of Collection: 19781985
# Lake sites: 1228
# Stream sites:
Survey Area: 14782 km²
NTS Sheet(s): 014C, 014D, 024A
The regional lake survey for northern Labrador (NTS 14C and parts of 14D and 24A) was conducted during the summers of 1978 and 1985.
This report presents analytical and statistical data for gold and 25 other elements obtained by re-analyzing lake sediments from 1228 sites, collected at an average density of one sample per 12.04 km². Original analytical data selected from Open File 559 (published 1979) and Open File 1209 (published 1986) for 13 and 17 elements plus loss-on-ignition in sediments, and uranium, fluoride, and pH values in concomitant waters are also included in this report.
Analytical Data
| variable | method | detection limit | year of analysis |
|---|---|---|---|
| Antimony | HY-AAS | 0.2 ppm | 1985 |
| Antimony | INAA | 0.1 ppm | 1992 |
| Arsenic | HY-AAS | 1 ppm | 1978 |
| Arsenic | INAA | 0.5 ppm | 1992 |
| Barium | INAA | 50 ppm | 1992 |
| Bromine | INAA | 0.5 ppm | 1992 |
| Cadmium | AAS | 0.2 ppm | 1985 |
| Cerium | INAA | 5 ppm | 1992 |
| Cesium | INAA | 0.5 ppm | 1992 |
| Chromium | INAA | 20 ppm | 1992 |
| Cobalt | AAS | 2 ppm | 1978 |
| Cobalt | INAA | 5 ppm | 1992 |
| Copper | AAS | 2 ppm | 1978 |
| Europium | INAA | 1 ppm | 1992 |
| Fluorine | ISE | 40 ppm | 1978 |
| Gold | INAA | 2 ppb | 1992 |
| Hafnium | INAA | 1 ppm | 1992 |
| Iron | AAS | 0.02 pct | 1978 |
| Iron | INAA | 0.2 pct | 1992 |
| Lanthanum | INAA | 2 ppm | 1992 |
| Lead | AAS | 2 ppm | 1978 |
| Loss-on-ignition | GRAV | 1 pct | 1978 |
| Lutetium | INAA | 0.2 ppm | 1992 |
| Manganese | AAS | 5 ppm | 1978 |
| Mercury | AAS | 10 ppb | 1982 |
| Molybdenum | AAS | 2 ppm | 1978 |
| Molybdenum | INAA | 1 ppm | 1992 |
| Nickel | AAS | 2 ppm | 1978 |
| Nickel | INAA | 10 ppm | 1992 |
| Rubidium | INAA | 5 ppm | 1992 |
| Samarium | INAA | 0.1 ppm | 1992 |
| Sample Weight | 0.01 gms | 1978 | |
| Scandium | INAA | 0.2 ppm | 1992 |
| Silver | AAS | 0.2 ppm | 1978 |
| Sodium | INAA | 0.02 pct | 1992 |
| Tantalum | INAA | 0.5 ppm | 1992 |
| Terbium | INAA | 0.5 ppm | 1992 |
| Thorium | INAA | 0.2 ppm | 1992 |
| Tungsten | COL | 2 ppm | 1985 |
| Tungsten | INAA | 1 ppm | 1992 |
| Uranium | INAA | 0.2 ppm | 1992 |
| Uranium | NADNC | 0.2 ppm | 1978 |
| Vanadium | AAS | 5 ppm | 1985 |
| Ytterbium | INAA | 2 ppm | 1992 |
| Zinc | AAS | 2 ppm | 1978 |
| variable | method | detection limit | year of analysis |
|---|---|---|---|
| Fluoride | ISE | 20 ppb | 1978 |
| Uranium | FT | 0.01 ppb | 1978 |
| Uranium | LIF | 0.05 ppb | 1985 |
| pH | GCM | 1978 |
- Acknowledgements:
-
The original reconnaissance surveys were carried out by the Geological Survey of Canada in conjunction with the Newfoundland Department of Mines and Energy under the auspices of the
Canada - Newfoundland Agreement on Uranium Reconnaissance Program (1976-1982) and the Canada - Newfoundland Mineral Development Agreement (1984-1989).
The reanalysis program was undertaken under the Canada - Newfoundland Cooperation Agreement on Mineral Development (1990-1994).
P.W.B. Friske coordinated the activities of contract and Geological Survey of Canada staff under the reanalysis program.
E.H.W. Hornbrook directed the original surveys.
M.McCurdy edited open files and coordinated production.
H. Gross and S.W. Adcock provided computer processing support.
C.C. Durham, S.J. Day, S. Carberry and R. Balma provided technical assistance.
- Collection:
-
Contractor and supervisor details for sample collection Category Responsible Party Contractor: (1978) Marshall Macklin Monaghan, Toronto, Ontario (1985) M.P.H. Consulting Ltd., Toronto, Ontario Supervisor: (1978) E.Hornbrook, Y.T. Maurice (GSC) (1985) P.W.B. Friske, E.H.W. Hornbrook (GSC) - Preparation:
-
Contractor and supervisor details for sample preparation Category Responsible Party Contractor: (1978/1985) Golder Associates, Ottawa, Ontario (1992) Bondar-Clegg & Company Limited, Gloucester, Ontario Supervisor: J.J. Lynch (GSC) - Analysis:
-
Contractor and supervisor details for sample preparation Category Responsible Party Contractor: (1978) Chemex Laboratories, Ltd., Vancouver, British Columbia (1978/1985) Barringer Magenta Ltd., Rexdale, Ontario (1978) Atomic Energy of Canada Ltd., Ottawa, Ontario (1985) Barringer Magenta (Alberta), Ltd., Calgary, Alberta (1992) Bequerel Laboratories, Mississauga, Ontario Supervisor: J.J. Lynch (GSC)
- Other information:
-
Analysis Year -for those that indicate 1978, analysis was also done in 1985 for the new samples collected (same method of analysis)
Seems that 1978 samples were only analyzed for Hg in 1982 and the 1985 samples were then analyzed in 1985.
- Date modified: