Vancouver Island Data Reanalysis Project (NTS 92B, 92C, 92E, 92F, 92G, 93K, 92L, 102I)
- Wayne Jackaman, Noble Exploration Services Ltd.

The primary objective of the Vancouver Island Geochemical Data Reanalysis Project is to stimulate mineral exploration interest in the region by providing the mining and exploration community with new, high-quality analytical information. The data will be generated by the reanalysis of up to 3138 archived moss-mat sediment pulps from previous regional geochemical surveys completed in the region almost 20 years ago. Analyzing these samples by 53 element ICP-MS provides a significant upgrade from the original AAS method particularly for base metal determinations. In addition the determination of platinum and palladium will support a growing interest in PGE targets.

The work will also complement on-going efforts by the BCGS and GSC to develop a comprehensive collection of geochemical information for the province. Currently the provincial geochemical database includes analytical information for approximately 65,000 sample sites and covers over 70% of BC. Similar initiatives aimed at enhancing the information found in the collection include the sample reanalysis by INAA conducted in the 1990s, the reanalysis of archived sample pulps in the McLeod Lake mapsheet (NTS 93J) in 1995 and more recently the Geoscience BC QUEST projects that have provided reanalysis data for over 25,000 samples.

Posters and Presentations
2011: British Columbia Regional Geochemical Survey: new analytical data and sample archive upgrades
- Mineral Exploration Roundup Conference 2011 Poster (pdf, 6.2 MB)
Technical Articles
2011: "British Columbia Regional Geochemical Survey Program: new analytical data and sample archive upgrades"
- Summary of Activities 2010, Report 2011-1 p. 181-188 (pdf, 10.1 MB)
Final Deliverables
Geoscience BC Report 2011-4
Regional Stream Sediment and Water Geochemical Data, Vancouver Island, British Columbia

Geoscience BC has supported the reanalysis of moss-trapped stream sediment samples originally collected in the late 1980s from creeks located on Vancouver Island by the BC Geological Survey and the Geological Survey of Canada. These samples have been recovered from storage and analyzed for 51 elements by aqua-regia digestion followed by inductively coupled plasma-mass spectrometry (ICP-MS) and Pt and Pd by fire assay.

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.


 


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