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Dossier Public 2578



Open File:  2578
Previous OF publication(s):  
Province / Territory:  Northwest Territories
Funding Source:  Federal (?)
Year of Collection:  1972

Survey Type:  Regional Lake Survey
# Lake sites:  217
# Stream sites:  0
Survey Area:  94000 km²
NTS Sheet(s):  076B, 076D

The regional lake survey southeast of Great Bear Lake (NTS 76B NW and 76D NE) was conducted during the summer of 1972.

This report contains new data for 42 elements obtained by reanalyzing lake sediments from 217 sites southeast of Great Bear Lake, original analytical data for 25 elements are also included in this report.

Analytical Data

Sediments
variable method detection limit year of analysis
Aluminum Oxide XRF 0.01 pct 1991
Antimony INAA 0.1 ppm 1991
Arsenic COL 0.5 ppm 1972
Arsenic INAA 0.5 ppm 1991
Barium ES 3 ppm 1972
Barium INAA 50 ppm 1991
Barium XRF 10 ppm 1991
Beryllium ES 1 ppm 1972
Bromine INAA 0.5 ppm 1991
CaO XRF 0.01 pct 1991
Cerium INAA 3 ppm 1991
Cesium INAA 1 ppm 1991
Chromium ES 1 ppm 1972
Chromium INAA 5 ppm 1991
Chromium XRF 10 ppm 1991
Cobalt ES 2 ppm 1972
Cobalt INAA 1 ppm 1991
Copper ES 1 ppm 1972
Europium INAA 0.2 ppm 1991
Gold INAA 2 ppb 1991
Hafnium INAA 1 ppm 1991
Iron INAA 0.01 pct 1991
Iron Oxide XRF 0.01 pct 1991
K2O XRF 0.01 pct 1991
Lanthanum es 12 ppm 1972
Lanthanum INAA 0.5 ppm 1991
Lead ES 2 ppm 1972
Lithium AAS 2 ppm 1972
Loss-on-ignition GRAV 0.01 pct 1991
Lutetium INAA 0.05 ppm 1991
Manganese AAS 10 ppm 1972
Mercury AAS 5 ppb 1972
MgO XRF 0.01 pct 1991
MnO XRF 0.01 pct 1991
Molybdenum ES 0.2 ppm 1972
Na2O XRF 0.01 pct 1991
Neodymium INAA 5 ppm 1991
Nickel ES 2 ppm 1972
Niobium XRF 10 ppm 1991
Optical Density COL 10 units 1972
P2O5 XRF 0.01 pct 1991
Rubidium INAA 5 ppm 1991
Rubidium XRF 10 ppm 1991
Samarium INAA 0.1 ppm 1991
Sample Weight GRAV 0.01 gms 1991
Scandium INAA 0.1 ppm 1991
SiO2 XRF 0.01 pct 1991
Silver AAS 0.2 ppm 1972
Sodium INAA 0.01 pct 1991
Strontium ES 2 ppm 1972
Strontium XRF 10 ppm 1991
Tantalum INAA 0.5 ppm 1991
Terbium INAA 0.5 ppm 1991
Thorium INAA 0.2 ppm 1991
TiO2 XRF 0.01 pct 1991
Titanium ES 7 ppm 1972
Tungsten INAA 1 ppm 1991
Uranium FLU 0.2 ppm 1972
Uranium INAA 0.5 ppm 1991
Vanadium ES 3 ppm 1972
Ytterbium INAA 0.2 ppm 1991
Yttrium ES 5 ppm 1972
Yttrium XRF 10 ppm 1991
Zinc AAS 2 ppm 1972
Zirconium ES 25 ppm 1972
Zirconium XRF 10 ppm 1991

Acknowledgements:

The original survey was carried out under the direction of R.J. Allen, E.M. Cameron and C.C. Durham.

P.W.B. Friske coordinated the activities of contract and Geological Survey of Canada staff under the reanalysis program.

M.McCurdy edited open files and coordinated production.

S.W. Adcock, S.J. Day, and L.A. Grignon provided computer processing support.

C.C. Durham provided technical assistance.

Collection:
Contractor and supervisor details for sample collection
Category Responsible Party
Contractor: Geological Survey of Canada
Supervisor: R.J. Allen, E.M. Cameron and C.C. Durham
Preparation:
Contractor and supervisor details for sample preparation
Category Responsible Party
Contractor: (1972) Geological Survey of Canada
Supervisor: J.J. Lynch (GSC)
Analysis:
Contractor and supervisor details for sample preparation
Category Responsible Party
Contractor: (1972) Geological Survey of Canada (1991) X-Ray Assay Laboratories, Don Mills, Ontario (1991) Activation Laboratories, Ancaster, Ontario
Supervisor: J.J. Lynch (GSC)

Other information:

The Bear-Slave operation was one of the first reconnaissance-style surveys carried out by the Geological Survey of Canada. It covered the central parts of the Bear and Slave Provinces of the Canadian Shield.

A total of 4 102 samples were collected within an area of 94 000 km², with an average density of 1 sample per 26 km².

Reanalysis year was estimated to be 1991, based on publ date being 1992.

Date de modification