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



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

Survey Type:  Regional Lake Survey
# 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.

location map for Open File 2645
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 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
Waters
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:
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:
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:
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