Survey Metadata

Stream sediment, Alluvial heavy minerals, Resource assessment

Northwest Territories


Stream sediment orientation survey, NTS 95F, 105I, Nahanni National Park Reserve area, Northwest Territories, 1985.

Location map

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Survey Description

In 1985, stream sediment orientation surveys were carried out in the proposed expansions to Nahanni National Park Reserve, Northwest Territories as part of a resource assessment.  In the Ragged Ranges area, 58 stream silts were collected in an area extending from Lened (skarn tungsten deposits) to Vulcan, a Zn-Pb showing.  In the Nahanni Karst area, 55 stream silts were collected around the Prairie Creek (Cadillac Mine) Ag-Pb-Zn vein.

The orientation survey was conducted to test sampling procedures, to identify potential problems (effects of topography and drainage, glaciation, contamination, presence of organic material) and to determine the geochemical signature of mineralized areas.

The data are published in Geological Survey of Canada Open File 1686.

Data from this survey are also included GSC Open File 5344, a resource assessment carried out in a larger area than was previously considered for expansion.

Publication History

Index Publication
1 Spirito, W.A., Jefferson, C.W. and Paré, D. (1988). Comparison of gold, tungsten and zinc in stream silts and heavy mineral concentrates, South Nahanni resource assessment area, District of Mackenzie; In Current Research, Part E. Geological Survey of Canada, Paper 88-1E, p.117-126. (more)
2 Chung, C.F., Spirito, W.A. (1989). Estimation of distribution parameters from data with observations below detection limit with an example from South Nahanni River area, District of Mackenzie. In Statistical Applications in the Earth Sciences, F.P. Agterberg and G.F. Bonham-Carter (ed.). Geological Survey of Canada, Paper 89-9, p. 233-242. (more)
3 Spirito, W.A. (1992). GIS integration and statistical techniques for interpretation of exploration geochemical data, South Nahanni River area, N.W.T.  M.Sc. thesis, University of Western Ontario, 183 p. (more)
4 Jefferson, C.W., Spirito, W.A. (2003). Mineral and energy resource assessment of the Tlogotsho Plateau, Nahanni Karst, Ragged Ranges and adjacent areas under consideration for expansion of Nahanni National Park Reserve, Northwest Territories. Geological Survey of Canada, Open File 1686. (more)
5 Jefferson, C.W., Spirito, W.A. (2003). Non-renewable mineral and energy resource potential of proposed extensions to Nahanni National Park Reserve, Northern Cordillera, Northwest Territories. Geological Survey of Canada, Open File 1576, 1 CD-ROM. (more)
6 McCurdy, M.W. McNeil, R.J., Friske, P.W.B., Day, S.J.A., Wilson, R.S. (2007). Stream sediment geochemistry in the proposed extension to the Nahanni Park Reserve. In Mineral and Energy Resource Assessment of the Greater Nahanni Ecosystem under Consideration for the Expansion of Nahanni National Park Reserve, Northwest Territories, D.F. Wright, D. Lemkow, J.R. Harris (ed.). Geological Survey of Canada, Open File 5344, p. 75-98. (more)

Project History

Index Year Project
1 1985-2003 Nahanni National Park Reserve MERA, Northwest Territories, 1985-1987 (more)
2 2004-2007 Nahanni National Park Reserve MERA 2, Northwest Territories, 2004-2005 (more)

Geographic Extent

Minimum Latitude Maximum Latitude Minimum Longitude Maximum Longitude
61.45° 62.37° -128.33° -124.58°

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

  • Covers part of NTS 105I (Little Nahanni River), in the Lened-Vulcan area on the South Nahanni River in the western proposed extension to Nahanni National Park Reserve, Northwest Territories.

  • Covers part of NTS 95F (Virginia Falls), the Cadillac Mine area on Prairie Creek in the eastern proposed extension to Nahanni National Park Reserve, Northwest Territories.


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