Till Northwest Territories 1992

Till sampling survey, NTS 76D, Northwest Territories, 1992 and 1993.  


Geological Survey of Canada, Terrain Sciences Division

Survey Description

209 till samples collected in the Lac de Gras area, Northwest Territories in 1992 and 1993. Data published in GSC Open Files 2868 and 3205.

Data Description: Paper report; data lists on diskette (Excel 3.0) (GSC OF 2868). Paper report; text and data files on diskette (WP, ASCII, Excel 3.0) for GSC OF 3205.

Quantities Analysed: <0.002 mm and <0.063 mm fractions of till by ICP-AES after aqua regia (3HCl:1HNO3) for 28 elements. <0.063 mm fraction by INAA for 35 elements (GSC OF 2868). <0.002 mm fraction by ICP-AES after nitric-aqua regia digestion for 28 elements; <0.063 mm fraction by INAA for 35 elements.) for GSC OF 3205.

Geochem Plots Available: Proportional dot maps showing dispersal of elements in the <0.002 mm and <0.063 mm fractions (GSC OF 3205).

Other Analyses: Heavy mineral concentrate for gold grain counts and kimberlite indicator minerals (85 samples) (GSC OF 3205).



Publication History

Ward, B., Dredge, L., Kerr, D. (1994). Till geochemistry, Lac de Gras, District of Mackenzie, Northwest Territories (NTS 76D). Geological Survey of Canada Open File 2868.

Ward, B., Dredge, L.A., Kerr, D. (1994). Surficial geology, Lac de Gras, District of Mackenzie, Northwest Territories. Geological Survey of Canada Open File 2928.

Ward, B.C., Kjarsgaard, I.M., Dredge, L.A., Kerr, D.E., Stirling, J.A.R. (1995). Distribution and chemistry of kimberlite indicator minerals, Lac de Gras map area (76D), Northwest Territories. Geological Survey of Canada Open File 3079, 161 pages.

Ward, B.C., Dredge, L.A., Kerr, D.E. (1996). Trace element geochemistry and gold grain results from till samples, Lac de Gras area, Northwest Territories (NTS 76D). Geological Survey of Canada Open File 3205.


Project History

1992-1996 NATMAP Slave Province Project, Quaternary geology component, 1992-1993.
  As part of the Slave Province NATMAP, Quaternary field mapping and till sampling were carried out in 1993, following a brief reconnaissance survey in 1992. The till samples were taken to characterize the composition of the glacial materials and to establish regional background values of various elements. The data were published in GSC Open Files 2867 and 3120 (final report) for NTS 76C; in GSC Open Files 2868 and 3205 (NTS 76D), GSC Open Files 2908 and 3206 (NTS 86A).



Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude

64º

65º -112º -110º