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.

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Open File 2790

Open File:  2790
Previous OF publication(s):  1102
Province / Territory:  Newfoundland & Labrador
Funding Source:  Federal (1985); Federal and Provincial (1994)
Year of Collection:  1984

Survey Type:  Regional Lake Survey
# Lake sites:  915
# Stream sites:  
Survey Area:  18651 km²
NTS Sheet(s):  (003D, 013A, 002M, 012P)

The regional lake survey for southern Labrador (NTS 3D, 13A and parts of 2M and 12P) was conducted during the summer of 1984 .

This report presents analytical and statistical data for gold and 25 other elements obtained by re-analyzing lake sediments from 915 sites, collected at an average density of one sample per 20.4 km². Original analytical data selected from Open File 1102 (published 1985 ) for 17 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 2790
legend to accompany location map for Open File

Analytical Data

Sediments
variable method detection limit year of analysis
Antimony HY-AAS 0.2 ppm 1984
Antimony INAA 0.1 ppm 1992
Arsenic HY-AAS 1 ppm 1984
Arsenic INAA 0.5 ppm 1992
Barium INAA 50 ppm 1992
Bromine INAA 0.5 ppm 1992
Cadmium AAS 0.2 ppm 1984
Cerium INAA 5 ppm 1992
Cesium INAA 0.5 ppm 1992
Chromium INAA 20 ppm 1992
Cobalt AAS 2 ppm 1984
Cobalt INAA 5 ppm 1992
Copper AAS 2 ppm 1984
Europium INAA 1 ppm 1992
Fluorine ISE 40 ppm 1984
Gold INAA 2 ppb 1992
Hafnium INAA 1 ppm 1992
Iron AAS 0.02 pct 1984
Iron INAA 0.2 pct 1992
Lanthanum INAA 2 ppm 1992
Lead AAS 2 ppm 1984
Loss-on-ignition GRAV 1 pct 1984
Lutetium INAA 0.2 ppm 1992
Manganese AAS 5 ppm 1984
Mercury AAS 10 ppb 1984
Molybdenum AAS 2 ppm 1984
Molybdenum INAA 1 ppm 1992
Nickel AAS 2 ppm 1984
Nickel INAA 10 ppm 1992
Rubidium INAA 5 ppm 1992
Samarium INAA 0.1 ppm 1992
Sample Weight 0.01 gms 1992
Scandium INAA 0.2 ppm 1992
Silver AAS 0.2 ppm 1984
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 1984
Tungsten INAA 1 ppm 1992
Uranium INAA 0.2 ppm 1992
Uranium NADNC 0.5 ppm 1984
Vanadium AAS 5 ppm 1984
Ytterbium INAA 2 ppm 1992
Zinc AAS 2 ppm 1984
Waters
variable method detection limit year of analysis
Fluoride ISE 20 ppb 1984
Uranium LIF 0.05 ppb 1984
pH GCM 1984

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 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 survey.

M.McCurdy edited open files and coordinated production.

H. Gross 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: Marshall Macklin Monaghan, Toronto, Ontario
Supervisor: P.W.B. Friske (GSC)
Preparation:
Contractor and supervisor details for sample preparation
Category Responsible Party
Contractor: Golder Associates, Ottawa, Ontario (1992 Preparation) Bondar-Clegg & Company Limited, Gloucester, Ontario
Supervisor: J.J. Lynch (GSC)
Analysis:
Contractor and supervisor details for sample preparation
Category Responsible Party
Contractor: Barringer Magenta Ltd., Rexdale, Ontario Barringer Magenta (Alberta), Ltd., Calgary, Alberta (1992 Analysis) Becquerel Laboratories, Mississauga, Ontario
Supervisor: J.J. Lynch (GSC)

Other information:
Date modified: