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.

location map for Open File 2691
legend to accompany location map for Open File

Analytical Data

variablemethoddetection limityear of analysis
AntimonyHY-AAS0.2 ppm1985
AntimonyINAA0.1 ppm1992
ArsenicHY-AAS1 ppm1985
ArsenicINAA0.5 ppm1992
BariumINAA50 ppm1992
BromineINAA0.5 ppm1992
CadmiumAAS0.2 ppm1985
CeriumINAA5 ppm1992
CesiumINAA0.5 ppm1992
ChromiumINAA20 ppm1992
CobaltAAS2 ppm1985
CobaltINAA5 ppm1992
CopperAAS2 ppm1985
EuropiumINAA1 ppm1992
FluorineISE40 ppm1985
GoldINAA2 ppb1992
HafniumINAA1 ppm1992
IronAAS0.02 pct1985
IronINAA0.2 pct1992
LanthanumINAA2 ppm1992
LeadAAS2 ppm1985
Loss-on-ignitionGRAV1 pct1985
LutetiumINAA0.2 ppm1992
ManganeseAAS5 ppm1985
MercuryAAS10 ppb1985
MolybdenumAAS2 ppm1985
MolybdenumINAA1 ppm1992
NickelAAS2 ppm1985
NickelINAA10 ppm1992
RubidiumINAA5 ppm1992
SamariumINAA0.1 ppm1992
Sample Weight0.01 gms1985
ScandiumINAA0.2 ppm1992
SilverAAS0.2 ppm1985
SodiumINAA0.02 pct1992
TantalumINAA0.5 ppm1992
TerbiumINAA0.5 ppm1992
ThoriumINAA0.2 ppm1992
TungstenCOL2 ppm1985
TungstenINAA1 ppm1992
UraniumINAA0.2 ppm1992
UraniumNADNC0.2 ppm1985
VanadiumAAS5 ppm1985
YtterbiumINAA2 ppm1992
ZincAAS2 ppm1985
variablemethoddetection limityear of analysis
FluorideISE20 ppb1985
UraniumLIF0.05 ppb1985
pHGCM 1985


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.

Contractor and supervisor details for sample collection
CategoryResponsible Party
Contractor:M.P.H. Consulting Ltd., Toronto, Ontario
Supervisor:E.H.W.Hornbrook, P.W.B. Friske (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:(1985)Golder Associates, Ottawa, Ontario (1992) Bondar-Clegg & Company Limited, Gloucester, Ontario
Supervisor:J.J. Lynch (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible 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:
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