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 2645
Previous OF publication(s): 1636, 0997
Province / Territory: Newfoundland & Labrador
Funding Source: Federal (1984); Federal and Provincial (1988 and 1993)
Year of Collection: 1983
# Lake sites: 954
# Stream sites: 0
Survey Area: 14413 km²
NTS Sheet(s): 013K
The regional lake survey for central Labrador (NTS 13K) was conducted during the summer of 1983.
This report presents analytical and statistical data for gold and 25 other elements obtained by re-analyzing lake sediments from 954 sites, collected at an average density of one sample per 15.1 km². Original analytical data selected from Open File 997 (published 1983) for 15 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 | INAA | 0.1 ppm | 1992 |
| Arsenic | HY-AAS | 1 ppm | 1983 |
| Arsenic | INAA | 0.5 ppm | 1992 |
| Barium | INAA | 50 ppm | 1992 |
| Bromine | INAA | 0.5 ppm | 1992 |
| Cadmium | AAS | 0.2 ppm | 1983 |
| Cerium | INAA | 5 ppm | 1992 |
| Cesium | INAA | 0.5 ppm | 1992 |
| Chromium | INAA | 20 ppm | 1992 |
| Cobalt | AAS | 2 ppm | 1983 |
| Cobalt | INAA | 5 ppm | 1992 |
| Copper | AAS | 2 ppm | 1983 |
| Europium | INAA | 1 ppm | 1992 |
| Fluorine | ISE | 40 ppm | 1983 |
| Gold | INAA | 2 ppb | 1992 |
| Hafnium | INAA | 1 ppm | 1992 |
| Iron | AAS | 0.02 pct | 1983 |
| Iron | INAA | 0.2 pct | 1992 |
| Lanthanum | INAA | 2 ppm | 1992 |
| Lead | AAS | 2 ppm | 1983 |
| Loss-on-ignition | GRAV | 1 pct | 1983 |
| Lutetium | INAA | 0.2 ppm | 1992 |
| Manganese | AAS | 5 ppm | 1983 |
| Mercury | AAS | 10 ppb | 1983 |
| Molybdenum | AAS | 2 ppm | 1983 |
| Molybdenum | INAA | 1 ppm | 1992 |
| Nickel | AAS | 2 ppm | 1983 |
| Nickel | INAA | 10 ppm | 1992 |
| Rubidium | INAA | 5 ppm | 1992 |
| Samarium | INAA | 0.1 ppm | 1992 |
| Sample Weight | 0.01 gms | 1983 | |
| Scandium | INAA | 0.2 ppm | 1992 |
| Silver | AAS | 0.2 ppm | 1983 |
| 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 | INAA | 1 ppm | 1992 |
| Uranium | INAA | 0.2 ppm | 1992 |
| Uranium | NADNC | 0.5 ppm | 1983 |
| Vanadium | AAS | 5 ppm | 1983 |
| Ytterbium | INAA | 2 ppm | 1992 |
| Zinc | AAS | 2 ppm | 1983 |
| variable | method | detection limit | year of analysis |
|---|---|---|---|
| Fluoride | ISE | 20 ppb | 1983 |
| Uranium | LIF | 0.05 ppb | 1983 |
| pH | GCM | 1983 |
- Acknowledgements:
-
The original reconnaissance surveys werecarried out by the Geological Survey of Canada in conjunction with the Newfoundland Department of Mines and Energy under the terms of the Canada - Newfoundland Cooperative Mineral Program (1982-1984).
Open File 1636 (published 1989) included reanalysis data for part of NTS 13K and was funded under the Canada - Newfoundland Mineral Development Agreement (1984-1989). Analyses of remaining archive samples were 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 survey.
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: (1983) Marshall Macklin Monaghan, Toronto, Ontario Supervisor: E.Hornbrook, N.G.Lund (GSC) - Preparation:
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Contractor and supervisor details for sample preparation Category Responsible Party Contractor: (1983) Golder Associates, Ottawa, Ontario (1992) Bondar-Clegg & Company, Gloucester, Ontario Supervisor: J.J.Lynch (GSC) - Analysis:
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Contractor and supervisor details for sample preparation Category Responsible Party Contractor: (1983) Chemex Laboratories, Ltd. North Vancouver, British Columbia (1983) Acme Analytical Laboratories, Vancouver, British Columbia (1988) Bondar-Clegg & Company Limited, Gloucester, Ontario (1992) Bequerel Laboratories, Mississauga, Ontario Supervisor: J.J.Lynch (GSC)
- Other information:
- Date modified: