Soil, Till, Indicator minerals
Soil and till survey, Buffonta property, Kirkland Lake area, northeastern Ontario, 1992.
(requires an Internet connection)
Soil, till and kimberlite samples were collected from the Buffonta kimberlite dyke property, Kirkland Lake area, Ontario in the summer and fall of 1992. Soil samples were collected from 12 sites, 30 m apart along two existing cut lines, oriented northeast-southwest. At each site, samples of humus, B and C horizon material (developed on till) were collected from a hand-dug hole, 0.7 to 1.0 m deep. Fifty 7 to 10 kg till samples were collected from two backhoe trenches dug north to south across the kimberlite dike, 200 m to the west of the new Buffonta pit. Five till samples were collected from stripped outcrop around the western edge of the new pit. Two samples of weathered kimberlite dike were collected. The data are published in Geological Survey of Canada Open File 3007. A summary of this work can be found in Geological Survey of Canada 3228.
<0.42 mm fraction of humus, <0.063 mm fraction of B and C horizon soil, till and kimberlite samples analysed for 32 elements by ICP-AES after a nitric-aqua regia digestion; Au, Pd, Pt by fire assay/ICP-AFS.
Geochem Maps Available:
Profile plots of till mineralogy, geochemistry, gold grain counts and pebble lithology for trenches A and B.
Kimberlite indicator minerals.
|1||McClenaghan, M.B., Kjarsgaard, I.M., Crabtree, D., DiLabio, R.N.W. (1995). Mineralogy and geochemistry of till and soil overlying the Buffonta kimberlite dike, Kirkland Lake, Ontario. Geological Survey of Canada, Open File 3007, 114p. (more)|
|2||McClenaghan, M.B. (1996). Geochemistry and indicator mineralogy of drift over kimberlite, Kirkland Lake, Ontario. In Searching for Diamonds in Canada, A.N. Le Cheminant, D.G. Richardson, R.N.W. DiLabio, K.A. Richardson. (ed.). Geological Survey of Canada, Open File 3228, p. 213-218. (more)|
|3||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)|
|1||1992-1999||Kirkland Lake Kimberlite Project, 1992-1997 (more)|
|Minimum Latitude||Maximum Latitude||Minimum Longitude||Maximum Longitude|
The geographic extent of the survey is defined by the following polygons:
Covers part of NTS 32D/5 in central Garrison Township on the old Buffonta Mines Property just west of the old Buffonta pit in northeastern Ontario. The study area is centred around the Buffonta kimberlite dike located at 48°28'02"/79°56'52".
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