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Ministry of Energy Mines and Responsible for Core Review

93N

 

NTS 93N - Manson River


BC
RGS 11/49 / GSC OF 1001 / GBC 2008-3 / GBC 2008-5 /GBC 2009-11 / GBC 2009-14
GBC 2010-3 / GBC 2010-8

The Manson River (NTS 93N) reconnaissance-scale stream sediment and water survey was completed in 1983 and the resulting field and analytical data were released in 1984. A total of 1123 sediment and 1120 water samples were collected from 1060 sample sites.

 

As part of the RGS Archive Program, 1049 archived sediment pulps were re-analyzed by epi-thermal INAA and this new data along with original survey results were re-published in 1998.

 

Geoscience BC Report 2008-3 is a digital release that reports on geochemical results from a reanalysis of almost 5,000 archived stream and lake sediment samples collected in the region over 10 years ago.

 

Geoscience BC Report 2008-5 is part of the QUEST project, which was funded by Geoscience BC in partnership with the Northern Development Initiative Trust, and covers a 46,000 square kilometre area extending from Williams Lake to north west of Mackenzie. This digital release includes results of the 2007 in-fill lake sediment and water survey as well as original data and new inductively coupled plasma mass spectrometry (ICPMS) results from a 1995 survey previously conducted in the adjacent Stuart Lake area.

 

Geoscience BC Report 2009-11 is part of the QUEST-West project, which covers over 40,000 kilometers from Vanderhoof and Fort St. James to Terrace and Kitimat. Geoscience BC in partnership with the Northern Development Initiative Trust and the Regional District of Bulkley-Nechako funded an infill drainage sediment and water survey in 2008 conducted in central British Columbia. This digital release includes results of the 2008 infill survey and parts of this package incorporate data from a number of previous lake and stream based surveys completed in the study area as well as the new reanalysis data that were released in January 2009 as part of the QUEST-West Project.

 

Geoscience BC Report 2009-14 is an investigation using SiroSOM for the Analysis of QUEST Stream-Sediment and Lake-Sediment Geochemical Data on all NTS sheets for 93 and 94 A, B, C and D.

 

As part of a Geoscience BC funded study (GBC 2010-3), a geochemical orientation survey was carried out over the blind Central Zone Cu-Au porphyry at Serengeti's Kwanika project in north-central BC in 2009.  The objective of this study was to test various widely used partial and selective extractions in a challenging cover environment to determine which performs the best at detecting the mineralization.  In addition, the study aims to provide the mining industry with guidance on the optimum combination of soil horizon and extraction method for detecting deeply buried mineralization in areas of thick glacial cover. 

 

Geoscience BC Report 2010-8 is the second and final part of a Geoscience BC funded project (Project 2009-019) carried out by the author to test the effectiveness of a variety of commonly used chemical extractions at detecting mineralization through thick Quaternary glaciofluvial cover. The first part of the study was carried out at the Kwanika Central Zone and released as Geoscience BC Report 2010-03. This final report focuses on Terrane Metals Corp.'s Mt. Milligan Copper-Gold Project.

Original Analytical Data 
Sediments Sediments
element method detection limit element method detection limit
Zinc AAS 2 ppm Antimony AAS-H 0.2 ppm
Copper AAS 2 ppm Iron AAS 0.02%
Lead AAS 2 ppm Molybdenum AAS 1 ppm
Nickel AAS 2 ppm Uranium NADNC 0.5 ppm
Cobalt AAS 2 ppm
Silver AAS 0.2 ppm Waters
Manganese AAS 5 ppm element method detection limit
Arsenic AAS-H 0.5 ppm pH GCE 0.1
Mercury AAS-F 10 ppb Uranium LIF 0.05 ppb
Tungsten COLOR 2 ppm Fluoride ION 20 ppb
INAA Data 
Sediments
element detection limit element detection limit element detection limit
Gold 2 ppb Hafnium 1 ppm Sodium 0.10%
Antimony 0.1 ppm Iron 0.20% Tantalum 0.5 ppm
Arsenic 0.5 ppm Lanthanum 5 ppm Terbium 0.5 ppm
Barium 100 ppm Lutetium 0.2 ppm Thorium 0.5 ppm
Bromine 0.5 ppm Molybdenum 1 ppm Tungsten 2 ppm
Cerium 10 ppm Nickel 10 ppm Uranium 0.2 ppm
Cesium 0.5 ppm Rubidium 5 ppm Ytterbium 2 ppm
Chromium 5 ppm Samarium 0.5 ppm Zirconium 200 ppm
Cobalt 5 ppm Scandium 0.5 ppm    

Acknowledgements

The 1983 survey was conducted by the Geological Survey of Canada (GSC) and the British Columbia Ministry of Energy, Mines and Petroleum Resources (MEMPR) as part of a joint Canada-British Columbia project.

 

W.J. McMillan directed MEMPR activities and E.H.W Hornbrook directed GSC activities. Contracts were let to the following companies for sample collection, preparation and analysis and were managed by staff of the GSC and MEMPR.

 

COLLECTION: Hardy Associates, Burnaby, B.C.
W.J. McMillan (MEMPR)
PREPARATION: Golder Associates Ltd., Ottawa, Ont.
J.J. Lynch (GSC)
ANALYSIS:

Chemex Laboratories Ltd., Vancouver, B.C. (Stream Sediments)
Acme Analytical Laboratories Ltd., Toronto, Ontario (Stream Waters)
J.J. Lynch (GSC)

Initiated in 1990, the RGS Archive Program was conducted by the MEMPR and was funded in part by the Canada/British Columbia Mineral Development Agreement (1985-1990). P.F. Matysek and W. Jackaman directed the activities of MEMPR staff and managed the following sample preparation and analytical contracts.

 

PREPARATION:  Rob Phillips, Ottawa, Ont.
ANALYSIS: Becquerel Laboratories, Mississauga, Ont.