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 1957

Open File:  1957
Previous OF publication(s):  
Province / Territory:  Ontario
Funding Source:  Federal and Provincial
Year of Collection:  1988

Survey Type:  Regional Lake Survey
# Lake sites:  590
# Stream sites:  
Survey Area:  9990 km²
NTS Sheet(s):  052D, 052E

The regional lake sediment and water survey for northwestern Ontario (parts of NTS 52D and 52E) was conducted during the summer of 1988 .

This report presents analytical and statistical data for 18 variables in lake sediments from 590 sample sites, collected at an average density of one sample per 16.9 km². This report includes values for uranium, fluoride, pH, alkalinity, calcium and magnesium in waters.

location map for Open File 1957
legend to accompany location map for Open File

Analytical Data

variablemethoddetection limityear of analysis
AntimonyHY-AAS0.2 ppm1988
ArsenicHY-AAS1 ppm1988
CadmiumAAS0.2 ppm1988
CobaltAAS2 ppm1988
CopperAAS2 ppm1988
FluorineISE20 ppm1988
GoldFA-NA1 ppb1988
IronAAS0.02 pct1988
LeadAAS2 ppm1988
Loss-on-ignitionGRAV1 pct1988
ManganeseAAS5 ppm1988
MercuryCV-AAS10 ppb1988
MolybdenumAAS2 ppm1988
NickelAAS2 ppm1988
SilverAAS0.2 ppm1988
UraniumNADNC0.5 ppm1988
VanadiumAAS5 ppm1988
ZincAAS2 ppm1988
variablemethoddetection limityear of analysis
CalciumAAS0.5 ppb1988
FluorideISE20 ppb1988
MagnesiumAAS0.05 ppb1988
Total AlkalinityTIT1 ppm1988
UraniumLIF0.05 ppb1988
pHGCM 1988


The reconnaissance surveys were managed by the Geological Survey of Canada in conjunction with the Ontario Department of Mines under the Canada - Ontario Mineral Development Agreement (1985-1990).

E.H.W. Hornbrook directed the survey.

P.W.B. Friske coordinated the operational activities of contract and Geological Survey of Canada staff.

Contractor and supervisor details for sample collection
CategoryResponsible Party
Contractor:SIAL Geophisique, Montreal, Quebec
Supervisor:C.C. Durham (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:Golder Associates, Ottawa, Ontario
Supervisor:J.J. Lynch (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:Bondar-Clegg & Company Ltd., Ottawa, Ontario Chemex Labs Limited, Vancouver, British Columbia
Supervisor:J.J. Lynch (GSC)

Other information:
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