Dossiers publics PNRG

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Dossier Public 2790

Open File: 2790
Previous OF publication(s): 1102
Province / Territory: Newfoundland & Labrador
Funding Source: Federal (1985); Federal and Provincial (1994)
Year of Collection: 1984

Survey Type: Regional Lake Survey
# Lake sites: 915
# Stream sites:
Survey Area: 18651 km²
NTS Sheet(s): (003D, 013A, 002M, 012P)

The regional lake survey for southern Labrador (NTS 3D, 13A and parts of 2M and 12P) was conducted during the summer of 1984 .

This report presents analytical and statistical data for gold and 25 other elements obtained by re-analyzing lake sediments from 915 sites, collected at an average density of one sample per 20.4 km². Original analytical data selected from Open File 1102 (published 1985 ) 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	1984
Antimony	INAA	0.1 ppm	1992
Arsenic	HY-AAS	1 ppm	1984
Arsenic	INAA	0.5 ppm	1992
Barium	INAA	50 ppm	1992
Bromine	INAA	0.5 ppm	1992
Cadmium	AAS	0.2 ppm	1984
Cerium	INAA	5 ppm	1992
Cesium	INAA	0.5 ppm	1992
Chromium	INAA	20 ppm	1992
Cobalt	AAS	2 ppm	1984
Cobalt	INAA	5 ppm	1992
Copper	AAS	2 ppm	1984
Europium	INAA	1 ppm	1992
Fluorine	ISE	40 ppm	1984
Gold	INAA	2 ppb	1992
Hafnium	INAA	1 ppm	1992
Iron	AAS	0.02 pct	1984
Iron	INAA	0.2 pct	1992
Lanthanum	INAA	2 ppm	1992
Lead	AAS	2 ppm	1984
Loss-on-ignition	GRAV	1 pct	1984
Lutetium	INAA	0.2 ppm	1992
Manganese	AAS	5 ppm	1984
Mercury	AAS	10 ppb	1984
Molybdenum	AAS	2 ppm	1984
Molybdenum	INAA	1 ppm	1992
Nickel	AAS	2 ppm	1984
Nickel	INAA	10 ppm	1992
Rubidium	INAA	5 ppm	1992
Samarium	INAA	0.1 ppm	1992
Sample Weight		0.01 gms	1992
Scandium	INAA	0.2 ppm	1992
Silver	AAS	0.2 ppm	1984
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	1984
Tungsten	INAA	1 ppm	1992
Uranium	INAA	0.2 ppm	1992
Uranium	NADNC	0.5 ppm	1984
Vanadium	AAS	5 ppm	1984
Ytterbium	INAA	2 ppm	1992
Zinc	AAS	2 ppm	1984

Waters
variable	method	detection limit	year of analysis
Fluoride	ISE	20 ppb	1984
Uranium	LIF	0.05 ppb	1984
pH	GCM		1984

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 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:	Marshall Macklin Monaghan, Toronto, Ontario
Supervisor:	P.W.B. Friske (GSC)

Preparation:

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

Analysis:

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

Other information:

Date de modification: 2024-09-23