Dossiers publics PNRG

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Dossier Public 2475



Open File:  2475
Previous OF publication(s):  0560, 0903
Province / Territory:  Newfoundland & Labrador
Funding Source:  Federal and Provincial (1979 and 1993); Federal (1983)
Year of Collection:  1978

Survey Type:  Regional Lake Survey
# Lake sites:  1724
# Stream sites:  0
Survey Area:  23360 km²
NTS Sheet(s):  023H, 023G

The regional lake survey for western Labrador (NTS 23H and part of 23G) was conducted during the summers of 1978 and 1982.

This report presents new data for gold and 25 other elements obtained by re-analyzing lake sediments from 1724 sites, collected at an average density of one sample per 13.6 km². Original analytical data selected from Open File 560 (published 1979) and Open File 903 (published 1983) 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.

location map for Open File 2475
legend to accompany location map for Open File

Analytical Data

Sediments
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
Waters
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 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 and under the terms of the Canada - Newfoundland Agreement on a Uranium Reconnaissance Program (1976-1982) and the Canada - Newfoundland Cooperative Mineral Program (1982-1984).

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 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) 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) 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) Chemex Laboratories, Vancouver, British Columbia (1978/82) BarringerMagenta Ltd., Toronto, Ontario (1978) Atomic Energy of Canada Ltd., Ottawa, Ontario (1982) Acme Analytical Laboratories, Toronto, Ontario (1992) Bequerel Laboratories, Mississauga, Ontario
Supervisor: J.J.Lynch (GSC)

Other information:

Sample collection 1978 and 1982.

Samples analyzed in both 1978 and 1982, by the same methods, appear as 1978.

Date de modification