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 2666

Open File: 2666
Previous OF publication(s): 0866
Province / Territory: British Columbia
Funding Source: Provincial (1981); Federal and Provincial (1990)
Year of Collection: 1981

Survey Type: Regional Stream Survey
# Lake sites: 0
# Stream sites: 572
Survey Area: 15785 km²
NTS Sheet(s): 092I

Geological Survey of Canada (GSC) Open File 866 / British Columbia Ministry of Energy, Mines and Petroleum Resources (BCMEMPR) Regional Geochemical Survey (RGS) 8 presented analytical and statistical data for 14 elements in stream sediments from 572 sample sites, collected at an average density of one sample per 27.6 km². Uranium, fluoride, and pH values in waters from these sites were also included in this report.

In 1990, under the BCMEMPR RGS Archive Program, the samples collected in 1981 were analyzed by Instrumental Neutron Activation Analysis (INAA). These new data for gold and 25 other elements, along with original survey results, were published in 1994 as GSC OF 2666 / BCMEMPR RGS 40.

Analytical Data

Sediments
variable	method	detection limit	year of analysis
Antimony	AAS	0.2 ppm	1981
Antimony	INAA	0.1 ppm	1993
Arsenic	HY-AAS	0.5 ppm	1981
Arsenic	INAA	0.5 ppm	1993
Barium	INAA	100 ppm	1993
Bromine	INAA	0.5 ppm	1993
Cerium	INAA	10 ppm	1993
Cesium	INAA	0.5 ppm	1993
Chromium	INAA	5 ppm	1993
Cobalt	AAS	2 ppm	1981
Cobalt	INAA	5 ppm	1993
Copper	AAS	2 ppm	1981
Gold	INAA	2 ppb	1993
Hafnium	INAA	1 ppm	1993
Iron	AAS	0.02 pct	1981
Iron	INAA	0.2 pct	1993
Lanthanum	INAA	5 ppm	1993
Lead	AAS	2 ppm	1981
Lutetium	INAA	0.2 ppm	1993
Manganese	AAS	5 ppm	1981
Mercury	CV-AAS	10 ppb	1981
Molybdenum	AAS	2 ppm	1981
Molybdenum	INAA	1 ppm	1993
Nickel	AAS	2 ppm	1981
Nickel	INAA	10 ppm	1993
Rubidium	INAA	5 ppm	1993
Samarium	INAA	0.5 ppm	1993
Scandium	INAA	0.5 ppm	1993
Silver	AAS	0.2 ppm	1981
Sodium	INAA	0.1 pct	1993
Tantalum	INAA	0.5 ppm	1993
Terbium	INAA	0.5 ppm	1993
Thorium	INAA	0.5 ppm	1993
Tungsten	COL	2 ppm	1981
Tungsten	INAA	2 ppm	1993
Uranium	NADNC	0.2 ppm	1981
Uranium	INAA	0.2 ppm	1993
Ytterbium	INAA	2 ppm	1993
Zinc	AAS	2 ppm	1981
Zirconium	INAA	200 ppm	1993

Waters
variable	method	detection limit	year of analysis
Fluoride	ISE	20 ppb	1981
Uranium	LIF	0.05 ppb	1981
pH	GCM		1981

Acknowledgements:

The original reconnaissance survey of the Ashcroft, British Columbia map sheet (NTS 92I) was managed and funded by the British Columbia Ministry of Energy, Mines and Petroleum Resources as part of the Regional Geochemical Survey Program. Data management was provided by the Geological Survey of Canada.

The reanalysis program was funded in part by the Canada - British Columbia Mineral Development Agreement (1985 - 1990).

The reanalysis program was managed by the Geological Survey Branch staff of the MEMPR.

P.F. Matysek and W. Jackaman coordinated the operational activities of contract and MEMPR staff.

Collection:

Contractor and supervisor details for sample collection
Category	Responsible Party
Contractor:	Rooi Enterprises Ltd., Victoria, BC
Supervisor:	W.J. McMillan and W.M. Johnson, BCMEMPR

Preparation:

Contractor and supervisor details for sample preparation
Category	Responsible Party
Contractor:	Kamloops Research Assay and Laboratory Ltd., Kamloops, BC (1981) Rob Phillips, Ottawa, ON (1990)
Supervisor:	W.M. Johnson, BCMEMPR (1981)

Analysis:

Contractor and supervisor details for sample preparation
Category	Responsible Party
Contractor:	Chemex Labs Limited, Vancouver, BC (1981) Novatrack Analysts Limited, Vancouver, BC (1981) Bondar-Clegg & Company Ltd., North Vancouver, BC (1981) Bequerel Laboratories, Mississauga, ON (1990) Activation Laboratories, Ancaster, ON (1990)
Supervisor:	W.M. Johnson, BCMEMPR (1981)

Other information:

Sample density within the Thompson Plateau was restricted due to the regions flat terrain and semi-arid climate.

Date modified:: 2024-09-23