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 0676

Open File:  0676
Previous OF publication(s):  
Province / Territory:  Ontario
Funding Source:  Provincial
Year of Collection:  1979

Survey Type:  Regional Lake Survey
# Lake sites:  510
# Stream sites:  
Survey Area:  8052 km²
NTS Sheet(s):  052C

The regional lake sediment and water survey in northwestern Ontario (NTS 052C) was conducted during the summer of 1979.

This report presents analytical and statistical data for 12 variables in lake sediments and three variables (U, F, pH) in lake waters from 510 sample sites, collected at an average density of one sample per 15.8 km².

Analytical Data

variablemethoddetection limityear of analysis
ArsenicHY-AAS1 ppm1979
CobaltAAS2 ppm1979
CopperAAS2 ppm1979
IronAAS0.02 pct1979
LeadAAS2 ppm1979
Loss-on-ignitionGRAV1 pct1979
ManganeseAAS5 ppm1979
MolybdenumAAS2 ppm1979
NickelAAS2 ppm1979
SilverAAS0.2 ppm1979
UraniumNADNC0.4 ppm1979
ZincAAS2 ppm1979
variablemethoddetection limityear of analysis
FluorineISE20 ppb1979
UraniumFT0.01 ppb1979
pHGCM 1979


Contract and technical support costs were financed by the Province of Ontario.

The reconnaissance survey was undertaken by the Geological Survey of Canada in conjunction with the Ontario Ministry of Natural Resources according to the specifications established under the former Canada - Ontario Uranium Reconnaissance Program.

E.H.W. Hornbrook directed the Geological Survey of Canada activities.

Contractor and supervisor details for sample collection
CategoryResponsible Party
Contractor:Marshall Macklin Monaghan, Toronto, Ontario
Supervisor:E.H.W. Hornbrook , W.B. Coker (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:Golder Associates, Ottawa, Ontario
Supervisor:J.J. Lynch, C.C. Durham (GSC)
Contractor and supervisor details for sample preparation
CategoryResponsible Party
Contractor:Chemex Labs Limited, Vancouver, British Columbia Barringer Magenta Ltd., Toronto, Ontario Atomic Energy of Canada Ltd., Ottawa, Ontario
Supervisor:J.J. Lynch (GSC)

Other information:

Sediments were reanalyzed for additional elements in 1990. Data were released in Open File 2181.

Date modified: