Survey Metadata

Till, Indicator minerals



Till sampling, NTS 66A, central mainland Nunavut, 2003-2004.

Location map

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Survey Description

In the summer of 2004, 55 regional surface till samples were collected in the Schultz Lake map area, central Nunavut.  Sub-surface till samples were also collected from a trench and in five sections along the Thelon River.

Surficial geological mapping, stratigraphic studies and paleo ice-flow indicator mapping were also carried out.  Detailed till sampling was completed in the vicinity of the near-by Meadowbank gold deposits in 2003.

Heavy minerals from the till samples were examined for their gold grain content, kimberlite indicator minerals (KIM) and metamorphosed/magmatic massive sulphide indicator minerals (MMSIM).  A scanning electron microscope (SEM) was used to identify some heavy minerals.

The data are published in Geological Survey of Canada Open File 5312.

Sampling Procedure

Surface till samples (3 and 10 kg) were collected from above active mudboils at an average depth of 15 to 40 cm.

Publication History

Index Publication
1 McMartin, I., Dredge, L.A. (2005). History of ice flow in the Schultz Lake (NTS 66A) and Wager Bay (NTS 56G) areas, Kivalliq Region, Nunavut. Geological Survey of Canada, Current Research, 2005-B-2, 10 p. (more)
2 McMartin, I., Dredge, L.A., Ford, K.L., Kjarsgaard, I.M. (2006). Till composition, provenance and stratigraphy beneath the Keewatin Ice Divide, Schultz Lake area (NTS 66A), mainland Nunavut. Geological Survey of Canada, Open File 5312. (more)

Project History

Index Year Project
1 2002-2006 Western Churchill Metallogeny Project, Quaternary component, 2002-2005 (more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
64° 65° -98° -96°

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

  • Covers NTS 66A (Schultz Lake) in central, mainland Nunavut.  It is located approximately 300 km inland from the west side of Hudson Bay and includes the community of Baker Lake.


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