Survey Metadata

Till

Nunavut

1981

Till sampling survey, NTS 86N/5, 12, western Nunavut, 1981.





Location map

(requires an Internet connection)

Survey Description


In approximately 1981, 218 till samples from mudboils were collected in the west Dismal Lakes area, Nunavut.  Two hundred and five were collected from a detailed grid which covered the west Dismal Lakes boulder field and extended east to Dismal Lakes.  Thirteen samples were collected from a line extending west from the PEC uranium deposit.  Mudboils were chosen because they provide the freshest till sample for the least amount of digging; sampling is quick due to the lack of a vegetation mat; and, mudboils have developed exclusively on till in this area, therefore sampling mudboils confirmed that till was being collected.  The primary objective of this till survey was to obtain an indication of the location of the bedrock source of the uraniferous boulders from the shape and location of geochemically anomalous areas of till.  An interpretation of this work can be found in University of Alberta M.Sc. (Steele, 1985).

Data Description:

Paper report with data lists.

Quantities Analysed:

<0.002 fraction analyzed for Cu, Pb, Zn, Mn, and Cr, Co, Ni, Mo, and Fe by AAS after Lefort aqua regia digestion; for U by fluorometry and delayed neutron counting (DNC).

Geochem Maps Available:

Contour plots show distribution of selected elements.

Other Analyses:

<0.002 mm fraction of 12 samples analyzed by XRD.

Publication History

Index Publication
1 Steele, K.G. (1985). Utilizing glacial geology in uranium exploration, Dismal Lakes, Northwest Territories. M.Sc. thesis, University of Alberta, Edmonton, Alberta, Canada, 180 p ( more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
67.46° 67.55° -117.83° -117.5°

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

  • Covers the southern quarter of NTS 86N/12 (untitled) and the northern quarter of 86N/5 (Hanbury Kopje), west Dismal Lakes area, Nunavut.  It is bounded by latitude 67° 28’ and 67° 33’ north and longitude 117° 30’ and 117° 50’ west.  It is located approximately 80 km east of the NU-NT border and 90 km southwest of the village of Coppermine.  It comprises approximately 120 km 2.

Keywords

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