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 2691

Open File: 2691
Previous OF publication(s): 1210
Province / Territory: Newfoundland & Labrador
Funding Source: Federal and Provincial (1986 and 1993)
Year of Collection: 1985

Survey Type: Regional Lake Survey
# Lake sites: 1131
# Stream sites: 0
Survey Area: 16315 km²
NTS Sheet(s): 014E, 014F, 014L, 024H, 024I

The regional lake survey for northern Labrador (NTS 14F and parts of 14E, 14L, 24H and 24I ) was conducted during the summer of 1985 .

This report presents analytical and statistical data for gold and 25 other elements obtained by re-analyzing lake sediments from 1131 sites, collected at an average density of one sample per 14.4 km². Original analytical data selected from Open File 1210 (published 1986) for 17 elements plus loss-on-ignition in sediments, and uranium, fluoride, and pH values in concomitant waters are also included in this report.

Analytical Data

Sediments
variable	method	detection limit	year of analysis
Antimony	HY-AAS	0.2 ppm	1985
Antimony	INAA	0.1 ppm	1992
Arsenic	HY-AAS	1 ppm	1985
Arsenic	INAA	0.5 ppm	1992
Barium	INAA	50 ppm	1992
Bromine	INAA	0.5 ppm	1992
Cadmium	AAS	0.2 ppm	1985
Cerium	INAA	5 ppm	1992
Cesium	INAA	0.5 ppm	1992
Chromium	INAA	20 ppm	1992
Cobalt	AAS	2 ppm	1985
Cobalt	INAA	5 ppm	1992
Copper	AAS	2 ppm	1985
Europium	INAA	1 ppm	1992
Fluorine	ISE	40 ppm	1985
Gold	INAA	2 ppb	1992
Hafnium	INAA	1 ppm	1992
Iron	AAS	0.02 pct	1985
Iron	INAA	0.2 pct	1992
Lanthanum	INAA	2 ppm	1992
Lead	AAS	2 ppm	1985
Loss-on-ignition	GRAV	1 pct	1985
Lutetium	INAA	0.2 ppm	1992
Manganese	AAS	5 ppm	1985
Mercury	AAS	10 ppb	1985
Molybdenum	AAS	2 ppm	1985
Molybdenum	INAA	1 ppm	1992
Nickel	AAS	2 ppm	1985
Nickel	INAA	10 ppm	1992
Rubidium	INAA	5 ppm	1992
Samarium	INAA	0.1 ppm	1992
Sample Weight		0.01 gms	1985
Scandium	INAA	0.2 ppm	1992
Silver	AAS	0.2 ppm	1985
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	1985
Tungsten	INAA	1 ppm	1992
Uranium	INAA	0.2 ppm	1992
Uranium	NADNC	0.2 ppm	1985
Vanadium	AAS	5 ppm	1985
Ytterbium	INAA	2 ppm	1992
Zinc	AAS	2 ppm	1985

Waters
variable	method	detection limit	year of analysis
Fluoride	ISE	20 ppb	1985
Uranium	LIF	0.05 ppb	1985
pH	GCM		1985

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 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:	M.P.H. Consulting Ltd., Toronto, Ontario
Supervisor:	E.H.W.Hornbrook, P.W.B. Friske (GSC)

Preparation:

Contractor and supervisor details for sample preparation
Category	Responsible Party
Contractor:	(1985)Golder Associates, Ottawa, Ontario (1992) Bondar-Clegg & Company Limited, Gloucester, Ontario
Supervisor:	J.J. Lynch (GSC)

Analysis:

Contractor and supervisor details for sample preparation
Category	Responsible Party
Contractor:	(1985) Barringer Magenta Ltd., Rexdale, Ontario (1985) Barringer Magenta (Alberta), Ltd., Calgary, Alberta (1992) Bequerel Laboratories, Mississauga, Ontario
Supervisor:	J.J. Lynch (GSC)

Other information:

Date modified:: 2024-11-27