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Ministry of Energy Mines and Responsible for Core Review

92K

 

NTS 92K - Bute Inlet / RGS 22  / GBC R2011-4 / GBC 2013-11

The Bute Inlet (NTS 92K) reconnaissance-scale stream sediment and water survey was completed in 1988 and the resulting field and analytical data were released in 1989. A total of 1285 sediment and 1264 water samples were collected from 1214 sample sites. Moss-mat sediment and stream water samples were collected from 281 sites on Vancouver Island. Stream sediment and water samples were collected from 933 sites on the mainland.

 

Geoscience BC Report 2011-4 contains results of the 2010 Vancouver Island Reanalysis project plus previously published data for gold, fluorine and loss on ignition in stream sediments and fluoride, uranium and pH in stream waters. This information has been provided in a variety of digital formats. PDF files include survey descriptions and details regarding methods, field and analytical data listings, summary statistics, sample location map, geology map and maps for individual metals. Raw digital data of original field and analytical information plus new reanalysis results are included in Excel (XLS) format.

 

Geoscience BC Report 2013-11 presents the results of the Regional Stream Sediment and Water Geochemical Data conducted on northern Vancouver Island by W. Jackaman (Noble Exploration Services Ltd.).  A total of 721 moss-trapped sediment samples plus water were acquired from 681 stream sites located in a 10,000 km2 survey area north of the communities of Campbell River and Zeballos, within NTS 1:250,000 map sheets 092L, 092K and 102I.  Sample locations were selected to increase geochemical coverage and combined with historical survey work (see Geoscience BC Report 2013-12), the resulting average sample site density has been improved to one site every 5 km2. 

Analytical Data
Sediments Sediments
element method detection limit element method detection limit
Zinc AAS 2 ppm Fluoride ION 40 ppm
Copper AAS 2 ppm Bismuth AAS-H 0.2 ppm
Lead AAS 2 ppm Barium AAS 10 ppm
Nickel AAS 2 ppm Chromium AAS 5 ppm
Cobalt AAS 2 ppm Iron AAS 0.02%
Silver AAS 0.2 ppm Molybdenum AAS 1 ppm
Manganese AAS 5 ppm Uranium NADNC 0.5 ppm
Tin AAS 1 ppm Gold FA 2 ppb
Tungsten COLOR 1 ppm
Mercury AAS-F 10 ppb
Arsenic AAS-H 0.2 ppm Waters
Antimony AAS-H 0.2 ppm element method detection limit
Cadmium AAS 0.2 ppm pH GCE 0.1
Vanadium AAS 5 ppm Uranium LIF 0.05 ppb
Loss on Ignition GRAV 0.10% Fluoride ION 20 ppb

Acknowledgements

The 1988 stream sediment and water survey was conducted by the British Columbia Ministry of Energy, Mines and Petroleum Resources (MEMPR). Funding was supplied in part by the Canada-British Columbia Mineral Development Agreement (1985 - 1990).

 

Program activities were managed by P.F. Matysek, J.L. Gravel and W. Jackaman.  Contracts were let to the following companies for sample collection, preparation and analysis.

 

COLLECTION:  McElhanney Engineering Services Ltd., Vancouver, B.C.
PREPARATION:  Kamloops Research and Assay Ltd., Kamloops, B.C.
ANALYSIS: Chemex Laboratories, North Vancouver, B.C. (Sediments)
Barringer Magenta Labs Ltd., Calgary, Alta. (Waters)