Till Northwest Territories, Nunavut 1994

Till sampling survey, NTS 86H, Northwest Territories and Nunavut, 1994.  


Geological Survey of Canada, Terrain Sciences Division

Survey Description

196 till samples collected in the Point Lake map area, Northwest Territories and Nunavut ( NTS 86H) in 1994. Data published in GSC Open File 3317.

Data Description: Paper report and 1 diskette (WP5.0, ASCII and Excel3.0 formats).

Quantities Analysed: <0.002 mm fraction by ICP-AES after aqua regia (3HCl:1HNO3) for28 elements; <0.063 mm fraction by INAA for 35 elements.

Geochem Plots Available: Proportional symbol maps showing region dispersal of elements in the <0.002 mm and <0.063 mm fractions of till.

Other Analyses: Pebble lithologies; heavy mineral concentrate (47 samples) for gold grain counts and kimberlite indicator minerals.



Publication History

Dredge, L.A., Kerr, D.E., Ward, B.C. (1995). Point Lake, District of Mackenzie, Northwest Territories/Point Lake, district de Mackenzie, Territoires du Nord-Ouest. Geological Survey of Canada Open File 3085.

Dredge, L.A., Ward, B.C., Kerr, D.E. (1996). Trace element geochemistry and gold grain results from till samples, Point Lake, Northwest Territories (86H). Geological Survey of Canada Open File 3317.

Dredge, L.A., Kjarsgaard, I.M., Ward, B.C., Kerr, D.E., Stirling, J.A.R. (1996). Distribution and geochemical composition of kimberlite indicator minerals, Point Lake map area, Northwest Territories (86H). Geological Survey of Canada Open File 3341, 21 pages.


Project History

1994-1996 NATMAP Slave Province Project, Quaternary geology component, 1994-1996.
  The Quaternary geology component of the Slave Province National Mapping Program was designed to provide a regional framework for geologic interpretation of surficial sediments, environmental management and drift prospecting. The project involved mapping the surficial geology, till sampling and measuring ice flow indicators. The geochemical data will help establish regional background concentrations of selected trace and minor elements for mineral exploration and environmental base line studies. The data are published in GSC Open Files 3316 and 3355 (NTS 86I); GSC Open Files 3317 and 3341 (NTS 86H); GSC Open Files 3386, 3387 and 3654 for NTS 76E; GSC Open File 3412 for 86O and GSC Open File 3360 (NTS 86P). As part of the project, detailed till sampling was undertaken around the Ranch Lake kimberlite in the southern Contwoyto Lake map area. The results of this part of the project will aid in the design of mineral exploration programs for kimberlite-hosted diamond deposits in glaciated terrain. The data are published in GSC Open File 3924.



Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude

65º

66º -114º -112º