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 2650

Open File:  2650
Previous OF publication(s):  2645
Province / Territory:  Newfoundland & Labrador
Funding Source:  Federal and Provincial
Year of Collection:  1992

Survey Type:  Regional Lake Survey
# Lake sites:  404
# Stream sites:  
Survey Area:  3600 km²
NTS Sheet(s):  013K/6, 013K/7, 013K/10, 013K/15

The high-density lake sediment survey for central Labrador (NTS 13K/6, 13K/7, 13K/10, 13K/15) was conducted during the summer of 1992.

This report presents analytical and statistical data for 40 elements in lake sediments from 404 sample sites, collected at an average density of one sample per 8.9 km². Uranium, fluoride, and pH values in waters from these sites are also included in this report.

location map for Open File 2650
legend to accompany location map for Open File

Analytical Data

variablemethoddetection limityear of analysis
AntimonyINAA0.1 ppm1992
ArsenicINAA0.5 ppm1992
BariumINAA50 ppm1992
BromineINAA0.5 ppm1992
CadmiumAAS0.2 ppm1992
CeriumINAA5 ppm1992
CesiumINAA0.5 ppm1992
ChromiumINAA20 ppm1992
CobaltAAS2 ppm1992
CobaltINAA5 ppm1992
CopperAAS2 ppm1992
EuropiumINAA1 ppm1992
FluorineISE40 ppm1992
GoldINAA2 ppb1992
HafniumINAA1 ppm1992
IronAAS0.02 pct1992
IronINAA0.2 pct1992
LanthanumINAA2 ppm1992
LeadAAS2 ppm1992
Loss-on-ignitionGRAV1 pct1992
LutetiumINAA0.2 ppm1992
ManganeseAAS5 ppm1992
MercuryCV-AAS10 ppb1992
MolybdenumAAS2 ppm1992
MolybdenumINAA1 ppm1992
NickelAAS2 ppm1992
NickelINAA10 ppm1992
RubidiumINAA5 ppm1992
SamariumINAA0.1 ppm1992
Sample Weight0.01 gms1992
ScandiumINAA0.2 ppm1992
SilverAAS0.2 ppm1992
SodiumINAA0.02 pct1992
TantalumINAA0.5 ppm1992
TerbiumINAA0.5 ppm1992
ThoriumINAA0.2 ppm1992
TungstenINAA1 ppm1992
UraniumINAA0.2 ppm1992
VanadiumAAS5 ppm1992
YtterbiumINAA1 ppm1992
ZincAAS2 ppm1992
variablemethoddetection limityear of analysis
FluorideISE20 ppb1992
UraniumLIF0.05 ppb1992
pHGCM0 1992


The survey was carried out by the Geological Survey of Canada with the assistance of John McConnell and his assistants from the Newfoundland Department of Mines and Energy.

The survey was undertaken under the auspices of the Canada - Newfoundland Cooperation Agreement on Mineral Development (1990-1994).

P.W.B. Friske directed the survey, coordinating the activities of contract and Geological Survey of Canada staff.

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 and supervisor details for sample preparation
CategoryResponsible Party
Contractor:Bondar-Clegg & Company Limited, Gloucester, Ontario
Supervisor:J.J. Lynch (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:Barringer Laboratories (Alberta), Ltd., Calgary, Alberta Bequerel Laboratories, Mississauga, Ontario Chemex Laboratories, Ltd. North Vancouver, British Columbia
Supervisor:J.J. Lynch (GSC)

Other information:

No mention of OF 2645 in the paper copy, but from the map it appears that OF 2645 covers the entire 13K mapsheet.

Date modified: