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Dossier Public 2649

Open File: 2649
Previous OF publication(s): 0557
Province / Territory: Newfoundland & Labrador
Funding Source: Federal and Provincial
Year of Collection: 1978

Survey Type: Regional Lake Survey
# Lake sites: 936
# Stream sites:
Survey Area: 11200 km²
NTS Sheet(s): 013M

The original regional lake survey for west-central Labrador (NTS 13M) was conducted during the summer of 1978.

This report presents analytical and statistical data for gold and 25 other elements obtained by re-analyzing lake sediments from 936 sites, collected at an average density of one sample per 12 km². Original analytical data selected from Open File 557 (published 1979 ) for 13 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	INAA	0.1 ppm	1992
Arsenic	HY-AAS	1 ppm	1978
Arsenic	INAA	0.5 ppm	1992
Barium	INAA	50 ppm	1992
Bromine	INAA	0.5 ppm	1992
Cerium	INAA	5 ppm	1992
Cesium	INAA	0.5 ppm	1992
Chromium	INAA	20 ppm	1992
Cobalt	AAS	2 ppm	1978
Cobalt	INAA	5 ppm	1992
Copper	AAS	2 ppm	1978
Europium	INAA	1 ppm	1992
Fluorine	ISE	40 ppm	1978
Gold	INAA	2 ppb	1992
Hafnium	INAA	1 ppm	1992
Iron	AAS	0.02 pct	1978
Iron	INAA	0.2 pct	1992
Lanthanum	INAA	2 ppm	1992
Lead	AAS	2 ppm	1978
Loss-on-ignition	GRAV	1 pct	1978
Lutetium	INAA	0.2 ppm	1992
Manganese	AAS	5 ppm	1978
Mercury	AAS	10 ppb	1992
Molybdenum	AAS	2 ppm	1978
Molybdenum	INAA	1 ppm	1992
Nickel	AAS	2 ppm	1978
Nickel	INAA	10 ppm	1992
Rubidium	INAA	5 ppm	1992
Samarium	INAA	0.1 ppm	1992
Sample Weight		0.01 gms	1978
Scandium	INAA	0.2 ppm	1992
Silver	AAS	0.2 ppm	1978
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	INAA	1 ppm	1992
Uranium	INAA	0.2 ppm	1992
Uranium	NADNC	0.2 ppm	1978
Ytterbium	INAA	2 ppm	1992
Zinc	AAS	2 ppm	1978

Waters
variable	method	detection limit	year of analysis
Fluoride	ISE	20 ppb	1978
Uranium	FT	0.01 ppb	1978
pH	GCM		1978

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 Agreement on a Uranium Reconnaissance Program (1976-1982).

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:	(1978) Marshall Macklin Monaghan, Toronto, Ontario
Supervisor:	E. Hornbrook, Y.T. Maurice (GSC)

Preparation:

Contractor and supervisor details for sample preparation
Category	Responsible Party
Contractor:	(1978) 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:	(1978) Chemex Laboratories, Ltd. North Vancouver, British Columbia (1978) Barringer Magenta Ltd., Toronto, Ontario (1978) Atomic Energy of Canada Ltd., Ottawa, Ontario (1992) Bequerel Laboratories, Mississauga, Ontario
Supervisor:	J.J. Lynch (GSC)

Other information:

Analysis Year for Hg 1992?

Date de modification: 2023-11-14