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 1641

Open File:  1641
Previous OF publication(s):  
Province / Territory:  Manitoba
Funding Source:  Federal and Provincial
Year of Collection:  1987

Survey Type:  Regional Lake Survey
# Lake sites:  1699
# Stream sites:  0
Survey Area:  21600 km²
NTS Sheet(s):  063I, 063H, 063P

The regional lake survey for central Manitoba (NTS 63I and parts of 63H and 63P) was conducted during the summer of 1987.

This report presents analytical and statistical data for 17 elements plus loss-on-ignition in lake sediments from 1 699 sample sites, collected at an average density of one sample per 13 km². Uranium, fluoride, calcium, magnesium, alkalinity and pH values in concomitant waters are included in this report.

location map for Open File 1641
legend to accompany location map for Open File

Analytical Data

variablemethoddetection limityear of analysis
AntimonyAAS0.2 ppm1987
ArsenicAAS1 ppm1987
CadmiumAAS0.2 ppm1987
CobaltAAS2 ppm1987
CopperAAS2 ppm1987
FluorineISE20 ppm1987
GoldFA-NA1 ppb1987
IronAAS0.02 pct1987
LeadAAS2 ppm1987
Loss-on-ignitionGRAV1 pct1987
ManganeseAAS5 ppm1987
MercuryAAS10 ppb1987
MolybdenumAAS2 ppm1987
NickelAAS2 ppm1987
SilverAAS0.2 ppm1987
UraniumNADNC0.5 ppm1987
VanadiumAAS5 ppm1987
ZincAAS2 ppm1987
variablemethoddetection limityear of analysis
CalciumICP0.2 ppm1987
FluorineISE20 ppb1987
MagnesiumICP0.02 ppm1987
Total AlkalinityTIT2 ppm1987
UraniumLIF0.05 ppb1987
pHGCM 1987


The reconnaissance surveys were undertaken by the Geological Survey of Canada in conjunction with the Manitoba Department of Energy and Mines under the Canada - Manitoba Mineral Development Agreement (1984 - 1989).

E.H.W. Hornbrook directed the survey.

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

H.R. Schmitt coordinated and edited open file production.

A.C. Galletta and D. Wright managed the digital geochemical data, provided computer processing support and developed software to plot the open file symbol and regional trend maps.

Computing services provided by the Computer Science Centre, EMR.

The plotting was done by Canada Lands Data Systems staff at Environment Canada, Hull, Quebec.

H. Gross developed microcomputer software to produce data listings and summary statistics.

J.Yelle and F. Williams of the Geological Information Division supervised the preparation of the open file base maps by Cartography Unit A-2 and Terra Surveys Ltd., Ottawa.

M. McCurdy, S. Cook and C.C. Durham processed incomming and outgoing materials, supplies and samples.

J.C. Bélec provided word processing support.

Contractor and supervisor details for sample collection
CategoryResponsible Party
Contractor:SIAL Geophysique, Montreal, Quebec
Supervisor:E.H.W. Hornbrook, P.W.B. Friske (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:

1 of 8 Open Files for northern Manitoba

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