Soil, Till, Indicator minerals
Soil and till sampling survey, NTS 85J, I, O and P, Yellowknife area, Northwest Territories, 1999.
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During the month of July 1999, a regional orientation survey including surficial mapping and geochemical sampling was undertaken in the Yellowknife area, Northwest Territories. Seventy sites were visited. Samples of humus and litter fall (60), till (58) and other sediment types (e.g. glaciolacustrine and glaciofluvial) were collected. A summary of the work can be found in GSC Current Research 2000-C3. The data are published in GSC Open File 4019, which also includes data from samples collected in 2000.
Also in 1999, eleven regional till samples weighing approximately 10 kg were collected in the Yellowknife area for kimberlite indicator minerals and gold grain analyses. An additional 25 till samples weighing 20 to 30 kg were also collected near Mud Lake for kimberlite indicator minerals and gold analyses near Mud Lake, approximately 4 km southeast of Drybones Bay. These data are published in GSC Open Files 3861 and 3942 (supersedes OF 3861).
Digital data files.
<0.002 mm fraction by ICP-AES after nitric-aqua regia digestion for 39 elements; <0.063 mm fraction by INAA for 34 elements.
Geochem Maps Available:
Pebble lithologies; kimberlite indicator mineral and gold grains (GSC OF 3861 superseded by GSC OF 3942).
The area was surveyed by road access, fixed wing and helicopter-assisted traversing. Soil samples (58) were taken from hand dug pits, at depths of 10 to 60 cm. Humus and litter fall were collected over or adjacent to the mineral-soil sampling site, but due to recent forest fires in some areas, organic soils were charred or nonexistent.
|1||Kerr, D.E., Smith, D., Wilson, P. (2000). Anomalous kimberlite indicator mineral and gold grain abundances, Drybones Bay and Yellowknife area, Northwest Territories. Geological Survey of Canada, Open File 3861. (more)|
|2||Kerr, D.E., Wilson, P. (2000). Preliminary surficial geology studies and mineral exploration considerations in the Yellowknife area, Northwest Territories. Geological Survey of Canada, Current Research 2000-C3, 8 p. (more)|
|3||Kerr, D.E. (compiler) (2001). Till geochemistry, Yellowknife area, Northwest Territories. Geological Survey of Canada, Open File 4019. 1 CD-ROM. (more)|
|4||Kerr, D.E., Kjarsgaard, I.M., Smith, D. (2001). Chemical characteristics of kimberlite indicator minerals from the Drybones Bay area, Northwest Territories. Geological Survey of Canada, Open File 3942. (more)|
|5||Kerr, D.E. (2002). Distribution and characteristics of gold grains in till, Yellowknife Greenstone Belt and Drybones Bay area, Northwest Territories. Geological Survey of Canada, Open File 4299. (more)|
|6||Kerr, D.E., Knight, R.D. (2005). Till geochemistry, Slave Province, Northwest Territories and Nunavut. Geological Survey of Canada, Open File 5015, CD-ROM. (more)|
|7||Kerr, D.E. (2006). Surficial geology and exploration geochemistry, Yellowknife area. Chapter 20 In Gold in the Yellowknife Greenstone Belt, Northwest Territories: Results of the EXTECH III Multidisciplinary Research Project, Geological Association of Canada, Mineral Deposits Division, Special Publication No. 3, p. 301-324. (more)|
|8||Kerr, D.E., Knight, R.D. (2007). Gold grains in till, Slave Province, Northwest Territories and Nunavut. Geological Survey of Canada, Open File 5463. (more)|
|1||1999-2002||EXTECH III Program, Yellowknife area, Northwest Territories, soil, till and vegetation surveys, 1999-2001 (more)|
|Minimum Latitude||Maximum Latitude||Minimum Longitude||Maximum Longitude|
The geographic extent of the survey is defined by the following polygons:
Covers NTS 85J/8, 9, 16, 85I/4, 5, 12, 13, 85O/1 and 85P/4 in the Yellowknife area, Northwest Territories.
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