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 2473

Open File: 2473
Previous OF publication(s): 0512
Province / Territory: Newfoundland & Labrador
Funding Source: Federal and Provincial (1978 and 1994)
Year of Collection: 1977

Survey Type: Regional Lake Survey
# Lake sites: 758
# Stream sites:
Survey Area: 11950 km²
NTS Sheet(s): 003E, 013H

The regional lake survey for southeastern Labrador (NTS 3E and 13H) was conducted during the summer of 1977.

This report presents analytical and statistical data for gold and 25 other elements obtained by re-analyzing lake sediments from 758 sites, collected at an average density of one sample per 15.8 km². Original analytical data selected from Open File 512 (published 1978) 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	COL	1 ppm	1977
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	1977
Cobalt	INAA	5 ppm	1992
Copper	AAS	2 ppm	1977
Europium	INAA	1 ppm	1992
Fluorine	ISE	40 ppm	1977
Gold	INAA	2 ppb	1992
Hafnium	INAA	1 ppm	1992
Iron	AAS	0.02 pct	1977
Iron	INAA	0.2 pct	1992
Lanthanum	INAA	2 ppm	1992
Lead	AAS	2 ppm	1977
Loss-on-ignition	GRAV	1 pct	1977
Lutetium	INAA	0.2 ppm	1977
Manganese	AAS	5 ppm	1977
Mercury	AAS	10 ppb	1977
Molybdenum	AAS	2 ppm	1977
Molybdenum	INAA	1 ppm	1992
Nickel	AAS	2 ppm	1977
Nickel	INAA	10 ppm	1992
Rubidium	INAA	5 ppm	1992
Samarium	INAA	0.1 ppm	1992
Sample Weight		0.01 gms	1977
Scandium	INAA	0.2 ppm	1992
Silver	AAS	0.2 ppm	1977
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	1977
Ytterbium	INAA	1 ppm	1992
Zinc	AAS	2 ppm	1977

Waters
variable	method	detection limit	year of analysis
Fluoride	ISE	20 ppb	1977
Uranium	FT	0.01 ppb	1977
pH	GCM	0	1977

Acknowledgements:

The reconnaissance surveys were managed by the Geological Survey of Canada in conjunction with the Newfoundland Department of Mines and Energy under the terms of the Canada - Newfoundland Agreement on a Uranium Reconnaissance Program (1976-1982). Fisheries and Environment Canada provided funds for the determination of mercury.

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, and R. Balma provided technical assistance.

Collection:

Contractor and supervisor details for sample collection
Category	Responsible Party
Contractor:	Marshall Macklin Monaghan, Toronto, Ontario
Supervisor:	E. Hornbrook, Y.T. Maurice (GSC)

Preparation:

Contractor and supervisor details for sample preparation
Category	Responsible Party
Contractor:	(1977) Golder Associates, Ottawa, Ontario (1992) Bondar-Clegg & Company, Ottawa, Ontario
Supervisor:	J.J. Lynch (GSC)

Analysis:

Contractor and supervisor details for sample preparation
Category	Responsible Party
Contractor:	(1977) Chemex Laboratories, Vancouver, British Columbia (1977) BarringerResearch Limited, Toronto, Ontario (1977) Atomic Energy of Canada Ltd., Ottawa, Ontario (1992) Bequerel Laboratories, Mississauga, Ontario
Supervisor:	J.J. Lynch (GSC)

Other information:

Date modified:: 2024-11-27