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Dossier Public 9999c

Open File:  9999c
Previous OF publication(s):  0420
Province / Territory:  Yukon Territory
Funding Source:  Federal (1976); Territorial & Federal (1995)
Year of Collection:  1976

Survey Type:  Regional Stream Survey
# Lake sites:  0
# Stream sites:  642
Survey Area:  7466 km²
NTS Sheet(s):  106E, 106L, 116H, 116I

The original regional stream survey for north central Yukon (NTS 106E, 106L, 116H, 116I) was conducted during the summer of 1976.

Open File 420, published in 1977, presented analytical data for 12 elements in stream sediments. Uranium, fluoride, and pH values in waters from these sites were included in this report. For complete field observations refer to G.S.C. Paper 74 - 52.

New data, released by the Yukon Territorial Government in 2002, presents INAA data for gold and 25 other elements obtained by re-analyzing stream sediments from 642 sites, collected at average density of one sample per 11.6 km². Original analytical data for 12 elements in sediments, and uranium, fluoride, and pH values in concomitant waters are also included with these data.

Analytical Data

Sediments
variable method detection limit year of analysis
Antimony INAA 0.1 ppm 1995
Arsenic INAA 0.5 ppm 1995
Barium AAS 40 ppm 1976
Barium INAA 50 ppm 1995
Bromine INAA 0.5 ppm 1995
Cerium INAA 5 ppm 1995
Cesium INAA 0.5 ppm 1995
Chromium INAA 20 ppm 1995
Cobalt AAS 2 ppm 1976
Cobalt INAA 5 ppm 1995
Copper AAS 2 ppm 1976
Europium INAA 1 ppm 1995
Gold INAA 2 ppb 1995
Hafnium INAA 1 ppm 1995
Iron AAS 0.02 pct 1976
Iron INAA 0.2 pct 1995
Lanthanum INAA 2 ppm 1995
Lead AAS 2 ppm 1976
Lutetium INAA 0.2 ppm 1995
Manganese AAS 5 ppm 1976
Molybdenum AAS 2 ppm 1976
Molybdenum INAA 1 ppm 1995
Nickel AAS 2 ppm 1976
Nickel INAA 10 ppm 1995
Rubidium INAA 5 ppm 1995
Samarium INAA 0.1 ppm 1995
Sample Weight 0.01 gms 1995
Scandium INAA 0.2 ppm 1995
Silver AAS 0.2 ppm 1976
Sodium INAA 0.02 pct 1995
Tantalum INAA 0.5 ppm 1995
Terbium INAA 0.5 ppm 1995
Thorium INAA 0.2 ppm 1995
Tungsten COL 4 ppm 1976
Tungsten INAA 1 ppm 1995
Uranium NADNC 0.2 1976
Uranium INAA 0.2 ppm 1995
Ytterbium INAA 1 ppm 1995
Zinc AAS 2 ppm 1976
Waters
variable method detection limit year of analysis
Fluoride ISE 20 ppb 1976
Uranium FLU 0.05 ppb 1976
pH GCM 1976

Acknowledgements:

The original reconnaissance surveys were undertaken by the Geological Survey of Canada under the terms of the Canada - Yukon Agreement on a Federal Uranium Reconnaissance Program.

The Yukon Territorial Government, under the Yukon Geology Program, provided financial support for the reanalysis of 1976 samples. The Geological Survey of Canada, Mineral Resources Division, provided financial and logistical support.

P.W.B. Friske (GSC) directed the reanalysis program, coordinating the activities of contract and Geological Survey of Canada staff in 1995.

Collection:
Contractor and supervisor details for sample collection
Category Responsible Party
Contractor: GSC Staff
Supervisor: W.D. Goodfellow
Preparation:
Contractor and supervisor details for sample preparation
Category Responsible Party
Contractor: Golder Associates, Ottawa, ON
Supervisor: J.J. Lynch (1976)
Analysis:
Contractor and supervisor details for sample preparation
Category Responsible Party
Contractor: Chemex Labs Limited, Vancouver, BC Atomic Energy of Canada Limited (AECL), Ottawa, ON Barringer Research Ltd., Rexdale, ON (Whitehorse, YT Office) GSC Laboratories, 601 Booth St., Ottawa, ON Becquerel Laboratories Inc., Mississauga, ON (1995)
Supervisor: J.J. Lynch (1976)

Other information:

This survey was carried out for the purposes of land use planning and results remained confidential until 2002, when the data were released by the Yukon Territorial Government.

Date de modification