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Ministry of Energy Mines and Responsible for Core Review

93L

 

NTS 93L - Smithers

 

 

/ RGS 17  / GSC OF 1361 / GBC 2009-5 / GBC 2009-10 / GBC 2009-11 / GBC 2009-14 /
BCGS OF2011-6
 / GBC 2012-11 

The Smithers (NTS 93L) reconnaissance-scale stream sediment and water survey was completed in 1986  and the resulting field and analytical data were released in 1987. A total of 900 sediment and 878 water samples were collected from 850 sample sites. The survey also included the collection of lake sediment and water samples from 243 sites.

 

Geoscience BC Report 2009-5 is part of the QUEST-West project, which covers over 40,000 kilometers from Vanderhoof and Fort St. James to Terrace and Kitimat. The Regional District of Bulkley-Nechako, Northern Development Initiative Trust and the BC Geological Survey (Ministry of Energy, Mines and Petroleum Resources) partner with Geoscience BC on this project. This digital release includes inductively coupled plasma mass spectrometry (ICP-MS) results for a total of 3479 archived stream and lake sediment samples that cover parts of NTS map sheets 93E, F, L, and M.

 

Geoscience BC Report 2009-10, is in pdf format, and analytical data in zipped excel files. The clay-sized fraction of 533 archived basal till samples collected within the Babine porphyry copper belt was analyzed for 37 elements by aqua regia digestion followed by inductively coupled plasma mass spectrometry (ICP-MS). The spatial distribution of samples elevated in Ag, As, Cu, Hg, Mo, Pb, and Zn are the focus of this study. Data presented here confirm and further constrain previously identified till geochemical exploration targets within the Babine porphyry copper belt. These data also outline two new multi-element, multi-site till geochemical exploration targets.

 

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. 

 

British Columbia Geological Survey Open File 2011-6 is the silt plus clay-sized fraction of 84 basal till samples collected within the Colleymount map area (093L/01), located approximately 40 km southeast of Houston, BC, was analyzed for 37 elements by inductively coupled plasma mass spectrometry (ICP-MS), following an aqua regia digestion, and 35 elements by instrumental neutron activation analysis (INAA).  An additional 18 basal till samples were collected for analysis of heavy metal concentrates and gold grain counts.  The spatial distribution of till samples elevated in Cu, Mo, Pb, Zn, Ag, Hg, Au, As, Sb, and visible gold grains are the focus of this study.  Detrial dispersal of commodity metals and pathfinder elements from known sources of mineralization is discussed (e.g., past producing Equity Silver mine) as are areas of geochemical interest.

 

Geoscience BC Report 2012-11 was started to assist the mining industry in locating new mineral prospects, a two-year project was undertaken in west-central BC in an area approximately 340 km east of Prince Rupert and 400 km west of Prince George. This project was undertaken in an area that is within Geoscience BC's QUEST-West Project area and the Mountain Pine Beetle-Impacted Zone.

 

Specifically, this project delivers till geochemical and clast lithology data for the Bulkley River valley and adjacent areas (encompassing parts of NTS map areas 093L/07, /08, /09/, /10, /11, /15); information that is not publicly available. The data was collected for the British Columbia Geological Survey (BCGS) in 1996, as part of regional till sampling and Quaternary geology studies in the Babine porphyry copper belt of west-central BC (Levson, 2002). The BCGS project was a component of a program of multi-disciplinary and collaborative research with the Geological Survey of Canada (GSC), universities and the mining industry under the Nechako National Geoscience Mapping Program (NATMAP) in central BC. This till geochemical and clast lithology data has not been previously published. Its release will provide information about the background geochemistry and Quaternary geology of this part of west-central BC.

 

Analytical Data
Sediments Sediments
element method detection limit element method detection limit
Zinc AAS 2 ppm Vanadium AAS 5 ppm
Copper AAS 2 ppm Tin AAS 1 ppm
Lead AAS 2 ppm Antimony AAS-H 0.2 ppm
Nickel AAS 2 ppm Barium AAS 40 ppm
Cobalt AAS 2 ppm Iron AAS 0.02%
Silver AAS 0.2 ppm Molybdenum AAS 1 ppm
Gold FA-NA 2 ppb Uranium NADNC 0.5 ppm
Fluorine ION 20 ppb
Cadmium 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

Acknowledgements

The 1986 reconnaissance survey was undertaken by the British Columbia Ministry  of Energy, Mines and Petroleum Resources (MEMPR) in conjunction with the Geological  Survey of Canada (GSC) under a "Letter of Understanding" for a co-operative project.

 

E.H.W. Hornbrook and P.W.B. Friske directed GSC activities.  W.M. Johnson directed the MEMPR 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:  McElhanney Engineering Services Limited, Vancouver, B.C.
P.F. Matysek, and S. Zastavnikovich (MEMPR)
PREPARATION:  Golder Associates, Ottawa, Ont.
J.J. Lynch (GSC)
ANALYSIS: Bondar-Clegg and Company Ltd., Ottawa, Ont. (Sediments)
Barringer Magenta Ltd., Calagary, Alta. (Waters)
Chemex Labs Limited, North Vancouver, B.C. (Au in Sediments))
J.J. Lynch (GSC)