NGR lake sediment and water survey, parts of NTS 064B and 064C, Manitoba, 1985.
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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 1985, 37 pairs of lake sediment and water samples (74 samples in total) were collected adjacent to and south of the Johnson shear zone in part of NTS 64C. The data are published in GSC Open File 1959.
This survey was carried out using National Geochemical Reconnaissance (NGR) protocols for the sampling, preparation and chemical analysis. However, the NGR “block of 20” protocol for QA/QC was not followed.
The samples were collected using a float plane and an inflatable boat. 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.
|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)|
|1||1985-1989||NGR lake sediment infill project, Lynn Lake, Manitoba (more)|
This ZIP file contains a copy of the data diskette originally released with GSC Open File 1959.
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.
|Minimum Latitude||Maximum Latitude||Minimum Longitude||Maximum Longitude|
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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