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 2647
Previous OF publication(s): 0557, 0998
Province / Territory: Newfoundland & Labrador
Funding Source: Federal (1984); Federal and Provincial (1979 and 1993)
Year of Collection: 1978
# Lake sites: 903
# Stream sites: 0
Survey Area: 13800 km²
NTS Sheet(s): 013L
The regional lake surveys for central Labrador (NTS 13L) were conducted during the summers of 1978, 1982 and 1983.
This report presents analytical and statistical data for gold and 25 other elements obtained by re-analyzing lake sediments from 903 sites, collected at an average density of one sample per 15.3 km². Original analytical data selected from Open Files 557 (published 1979 ) and 998 (published 1984) for 13 or 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 | 1978 |
| Arsenic | INAA | 0.5 ppm | 1992 |
| Barium | INAA | 50 ppm | 1992 |
| Bromine | INAA | 0.5 ppm | 1992 |
| Cadmium | AAS | 0.2 ppm | 1982 |
| 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 | 1978 |
| 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 | INAA | 1 ppm | 1992 |
| Uranium | INAA | 0.2 ppm | 1992 |
| Uranium | NADNC | 0.2 ppm | 1978 |
| Vanadium | AAS | 5 ppm | 1982 |
| 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 | 1982 |
| pH | GCM | 0 | 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 a Uranium Reconnaissance Program (1976-1982) and the
Canada - Newfoundland Cooperative Mineral Program (1982-1984).
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: (1978/82/83) Marshall Macklin Monaghan, Toronto, Ontario Supervisor: E.Hornbrook,Y.T. Maurice, N.G.Lund (GSC) - Preparation:
-
Contractor and supervisor details for sample preparation Category Responsible Party Contractor: (1978/82/83) 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: (1978/82/83) Chemex Laboratories, Vancouver, British Columbia (1978) Barringer Magenta Ltd., Toronto, Ontario (1978) Atomic Energy of Canada Ltd., Ottawa, Ontario (1982/83) Acme Analytical Laboratories, Vancouver, British Columbia (1992) Bequerel Laboratories, Mississauga, Ontario Supervisor: J.J.Lynch (GSC)
- Other information:
-
Due to the numerous sample collection and analysis years, those elements that were duplicated between 1978 and 1982/83 (and analyzed by the same methods) will appear as 1978 in the adjacent table.
Elements such as Cd which were analysed in 1982 and 1983 will apear as 1982.
- Date modified: