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 2791

Open File:  2791
Previous OF publication(s):  0509
Province / Territory:  Newfoundland & Labrador
Funding Source:  Federal and Provincial (1978 and 1994)
Year of Collection:  1977

Survey Type:  Regional Lake Survey
# Lake sites:  1026
# Stream sites:  0
Survey Area:  14749 km²
NTS Sheet(s):  013B

The regional lake survey for eastern Labrador (NTS 13B) 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 1 026 sites, collected at an average density of one sample per 14.4 km². Original analytical data selected from Open File 509 (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.

location map for Open File 2791
legend to accompany location map for Open File

Analytical Data

variablemethoddetection limityear of analysis
AntimonyINAA0.1 ppm1992
ArsenicCOL1 ppm1977
ArsenicINAA0.5 ppm1992
BariumINAA50 ppm1992
BromineINAA0.5 ppm1992
CeriumINAA5 ppm1992
CesiumINAA0.5 ppm1992
ChromiumINAA20 ppm1992
CobaltAAS2 ppm1977
CobaltINAA5 ppm1992
CopperAAS2 ppm1977
EuropiumINAA1 ppm1992
FluorineISE40 ppm1977
GoldINAA2 ppb1992
HafniumINAA1 ppm1992
IronAAS0.02 pct1977
IronINAA0.2 pct1992
LanthanumINAA2 ppm1992
LeadAAS2 ppm1977
Loss-on-ignitionGRAV1 pct1977
LutetiumINAA0.2 ppm1992
ManganeseAAS5 ppm1977
MercuryAAS10 ppb1977
MolybdenumAAS2 ppm1977
MolybdenumINAA1 ppm1992
NickelAAS2 ppm1977
NickelINAA10 ppm1992
RubidiumINAA5 ppm1992
SamariumINAA0.1 ppm1992
Sample Weight0.01 gms1992
ScandiumINAA0.2 ppm1992
SilverAAS0.2 ppm1977
SodiumINAA0.02 pct1992
TantalumINAA0.5 ppm1992
TerbiumINAA0.5 ppm1992
ThoriumINAA0.2 ppm1992
TungstenINAA1 ppm1992
UraniumINAA0.2 ppm1992
UraniumNADNC0.2 ppm1977
YtterbiumINAA1 ppm1992
ZincAAS2 ppm1977
variablemethoddetection limityear of analysis
FluorideISE20 ppb1977
UraniumFT0.01 ppb1977
pHGRAV 1977


The original reconnaissance surveys were managed 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).

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.

Contractor and supervisor details for sample collection
CategoryResponsible Party
Contractor:Marshall Macklin Monaghan, Toronto, Ontario
Supervisor:E. Hornbrook, Y.T. Maurice (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:(1977)Golder Associates, Ottawa, Ontario; (1992) Bondar-Clegg & Company, Ottawa, Ontario
Supervisor:J.J.Lynch (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:(1977) Chemex Laboratories,Vancouver, British Columbia Barringer Research Limited, Toronto, Ontario Atomic Energy of Canada Ltd., Ottawa, Ontario (1992) Becquerel Laboratories, Mississauga, Ontario
Supervisor:J.J.Lynch (GSC)

Other information:
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