Survey Metadata

Stream sediment, Alluvial heavy minerals, Resource assessment

Northwest Territories


Stream sediment survey, NTS 95B, C, E, F, G, L, 105I, H, Nahanni National Park Reserve area, Northwest Territories, 1987.

Location map

(requires an Internet connection)

Survey Description

In 1987, stream sediment follow-up surveys were carried out in Ragged Ranges and Nahanni Karst-Tlogotsho Plateau, the proposed expansion areas to Nahanni National Park Reserve as part of a resource assessment.  Based on the results from 1985 and 1986 surveys, anomalous streams were re-sampled.  In addition to this follow-up work, samples from previously untested, associated tributaries were taken at sites to fill in gaps where time had not permitted collection the previous summer.  A total of 84 samples were collected.  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 Jefferson, C.W., Paré, D. (1992). New placer gold anomalies along the Liard Range – Ram Plateau segment, South Nahanni River metallogenic transect, District of Mackenzie, NWT. In Project Summaries: Canada-Northwest Territories Mineral Development Subsidiary Agreement 1987-1991, D.G. Richardson and M. Irving (compilers). Geological Survey of Canada, Open File 2484, p. 113-116. (more)
4 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)
5 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)
6 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)
7 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
60.87° 62.5° -128.33° -123.5°

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

  • Covers parts of NTS 105H (Frances Lake), 105I (Little Nahanni River), 95L (Glacier Lake) and 95E (Flat River), in the Ragged Ranges area of the Mackenzie Mountains, Northwest Territories.  It represents the western proposed extension area to Nahanni National Park Reserve.  It includes the park in its southeast corner.

  • Covers parts of NTS 95F (Virgina Falls), 95G (Sibbeston Lake), 95B (Fort Liard) and 95C (La Biche River), in the Nahanni Karst-Tlogotsho Plateau area, Northwest Territories.  It represents the eastern proposed extension area to Nahanni National Park Reserve.  The park runs east-west through the study area.


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