Survey Metadata

Till, Indicator minerals



Till sampling survey, NTS 31L, M, 41P, northeastern Ontario, 2000.

Location map

(requires an Internet connection)

Survey Description

During the summer of 2000, 64 till samples were collected at a reconnaissance-scale from roadcuts or hand dug pits between New Liskeard and Marten River, northeastern Ontario.  The data are published in Geological Survey of Canada Open File 4086.  This report includes data for 9 other till samples collected in other surveys in the New Liskeard area.

Data Description:

Paper report and on CD-ROM.

Quantities Analysed:

<0.063 mm fraction by ICP-ES after LiBO2 and acid dissolution for major elements; by ICP-MS for rare earth elements; by ICP-ES after HCl-HNO3-H2O for base metals; by INAA for 34 elements.

Geochem Maps Available:


Other Analyses:

Heavy mineral concentrate for kimberlite indicator minerals (0.25-0.5 mm non-ferromagnetic fraction) and gold grain counts; carbonate (<0.063 mm fraction (LECO)); grain size; pebble lithologies (0.5-5 cm).

Sampling Procedure

At each site, a 10-12 kg till sample was collected for kimberlite analysis and a 2 kg till sample was collected for geochemical analysis.

Publication History

Index Publication
1 McClenaghan, M.B., Kjarsgaard, I.M., Kjarsgaard, B.A. (2001). Reconnaissance-scale till survey in the New Liskeard-Temagami region, Ontario: kimberlite indicator minerals and geochemistry. Geological Survey of Canada, Open File 4086, 92 p. (more)
2 McClenaghan, M.B., Gauvreau, D., Kjarsgaard, B.A. (2009). Mineral chemistry database for kimberlite, surficial sediments and kimberlite boulders from the Lake Timiskaming and Kirkland Lake kimberlite fields, Ontario and Quebec. Geological Survey of Canada, Open File 5833 (rev. ed.), 1 CD-ROM. (more)

Project History

Index Year Project
1 1997-2005 Lake Timiskaming Kimberlite Project, 1997-2005 (more)

Downloadable Files

Index Description Size (bytes)
Copy of CD-ROM for GSC Open File 4086 ( FileID=28 download)
This archive contains all of the files that are on the CD.

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
46.8° 47.63° -80.13° -79.32°

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

  • Covers parts of NTS 31L, M and 41P in northeastern Ontario, in an area south of the known Lake Timiskaming kimberlite field, between New Liskeard and Marten River.  It is bounded to the east by the Ontario-Quebec border.


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