Till sampling survey, NTS 105F, G, K, Tintina Trench area, southeastern Yukon, 1987.
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In 1987, 204 till samples were collected in an area centred on the Tintina Trench, southeastern Yukon. Samples were collected from river bank sections, road cuts, old trenches and hand dug pits. Care was taken to collected samples below the post-glacial solum. In areas of easy access, such as along the Campbell Highway, the distance between till samples averages 2 km. A greater distance separates sample sites because of limited accessibility with a floatplane and helicopter. Outwash and ice-contact gravel samples were also collected to determine their gold content. Till and gravel samples weighed from 3 to 5 kg each. The data are found in Carleton University M.Sc. thesis (Plouffe, 1989).
Paper report with data lists.
<0.002 mm fraction of till analysed for 29 elements by ICP-ES after a hot (HCl-HNO3) acid leach; for Hg by flameless AAS. <0.063 mm fraction for Au by AAS (all by Acme Labs in Vancouver, BC). Heavy minerals were analysed for 34 elements by INAA at Bondar-Clegg & Company, Ottawa, ON.
Geochem Maps Available:
Proportional dot maps showing distribution of elements in clay fraction (<0.002 mm) and distribution of gold in the silt and clay fraction (<0.063 mm).
|1||Plouffe, A. (1989). Drift prospecting and till geochemistry in Tintina Trench, Southeastern Yukon. M.Sc. thesis, Carleton University and Ottawa-Carleton Geoscience Centre, Ottawa, 111 p. (more)|
|2||Plouffe, A., Jackson, L.E. Jr. (1992). Drift prospecting for gold in the Tintina Trench. In Yukon Geology, Volume3, Exploration and Geological Services Division, Yukon, Indian and Northern Affairs Canada, p. 196-213. (more)|
|3||Plouffe, A., Jackson, L.E. (1995). Quaternary stratigraphy and till geochemistry in the Tintina Trench, near Faro and Ross River, Yukon Territory. In Drift Exploration in the Canadian Cordillera, P.T. Bobrowsky, S.J. Sibbick, J.M. Newell, P.F. Matysek (ed.). British Columbia Ministry of Energy, Mines and Petroleum Resources, Paper no. 1995-2. p.53-66. (more)|
|1||1987-1995||Southeastern Yukon till sampling survey, 1987 (more)|
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The geographic extent of the survey is defined by the following polygons:
Covers parts of NTS 105F, G and K, in an area centred on the Tintina Trench, southeastern Yukon Territory. It extends from Wolverine and Finlayson lakes to southeast of Faro. It is bounded by the Pelly Mountains to the southwest and the Pelly and Macmillan plateaus to the northeast.
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