Survey Metadata

NGR lake



NGR lake sediment and water survey, parts of NTS 064B and 064C, Manitoba, 1987.

Location map

(requires an Internet connection)

Survey Description

This survey is one of 3 surveys completed in the Leaf Rapids – Lynn Lake area between 1985 and 1988 that together represent the first infill lake surveys to be carried out in Manitoba.  They were designed to augment existing geochemical data in areas of high mineral potential.

In 1987, approximately 350 lake sediment and water samples were collected by GSC personnel during a helicopter-supported program.  The data are published in GSC Open File 1959.

This survey was carried out using National Geochemical Reconnaissance (NGR) protocols.

Sampling Procedure

Lake sediments were collected using a modified model of the GSC 1976 lake sediment sampler from the profundal basin of a lake 1-5 km2 in area and 3-5 m deep.  The top several centimetres of the sediment column was discarded, retaining thixotropic gel-like material which was placed in high wet-strength paper bags for drying and transport.  Lake waters were routinely collected at sediment sites in 250 mL Nalgene bottles from at least 30 cm below the water surface.  

Publication History

Index Publication
1 Schmitt, H.R. (1989). Geochemical results and interpretation of a lake sediment and water survey in the Lynn Lake – Leaf Rapids region, northern Manitoba. Geological Survey of Canada, Open File 1959. (more)

Project History

Index Year Project
1 1985-1989 NGR lake sediment infill project, Lynn Lake, Manitoba (more)

Downloadable Files

Index Description Size (bytes)
Diskette to accompany GSC Open File 1959 ( FileID=174 download)
This ZIP file contains a copy of the data diskette originally released with GSC Open File 1959.
Introductory text for GSC Open File 1959 ( FileID=546 download)
This PDF file contains the introductory text for GSC Open File 1959.  It was scanned from the original document.  The data are not included in this file.

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
56.5° 57° -101.25° -99.5°

The geographic extent of the survey is defined by the following polygons:

  • Covers parts of NTS 64B and 64C.  Extends from Lynn Lake to Leaf Rapids, MB.


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