Survey Metadata

Soil, Till



Till and soil sampling survey, NTS 42D, E, northwestern Ontario, 1999.

Location map

(requires an Internet connection)

Survey Description

Humus, B- and C-horizon samples of subglacial till were collected in 1999 over the Trans-Superior Tectonic Zone in the Killala Lake – Coldwell area of northwestern Ontario.  The data are published in Ontario Geological Survey Open File Report 6056.

Data Description:

Paper report; digital data released in compressed ASCII, Excel and DOS files on diskette MRD-74 (Miscellaneous Release-Data 74).

Quantities Analysed:

B- and C- samples (no fraction stated) by ICP-AES for 15 elements; by INAA for 21 elements and by ICP-MS for 16 elements.  Humus samples by ICP-AES-PGE for Au, Pt, Pd; by INAA for 20 elements and by ICP-MS for 24 elements.

Geochem Maps Available:

Diagrams summarizing the distribution of those sample sites anomalous in gold, kimberlite, base metal or rare element carbonatite signatures.

Other Analyses:

Pebble lithologies; heavy minerals for kimberlite indicator minerals and metamorphic or magmatic massive sulphide indicator minerals.

Publication History

Index Publication
1 Morris, T.F. (2001). Geochemical and till pebbled lithology data, surficial sediment sampling program, Schreiber-Killala Lake area, northwestern Ontario. Ontario Geological Survey Open File Report 6056, 62 pages. (more)

Project History

Index Year Project
1 1999-2001 Schreiber-Killala Lake surficial sediment sampling program carried out 1999-2000 (more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
48.75° 49.25° -87° -86.5°

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

  • Covers NTS 42E/2 (Killala Lake) and 42D/15 (Coldwell), in the Trans-Superior Tectonic Zone (TSTZ) in northwestern Ontario.  It is located 20 km west of Marathon and is bounded to the south by Lake Superior.


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