2010 Northern BC Regional Geochemical Survey Upgrades: Reanalysis Program
(NTS 94C, D, E, L, M; 104B, G, I, O, P)
- Wayne Jackaman, Noble Exploration Services Ltd.

Recognized as a cost effective way to up-date older NGR datasets, Geoscience BC has previously funded the reanalysis of over 20,000 sediment pulps by ICP-MS as part of the Quest, Quest West, QUEST South and Terrace projects. These initiatives have significantly improved the BC geochemical database by providing a wide range of new analytical information at improved detection levels. These types of initiatives are strongly supported by the mining and exploration community and have played an important role in stimulating new exploration activities as well as complimenting other geoscience projects.

This project is focused on the reanalysis of NGR/RGS sediment pulps covering a large area in northern BC. The surveys targeted for this project were originally conducted from 1979 to 1997 and include NTS map sheets 94C, D, E, L, M, and 104B, G, I, O, P. A total 8572 samples (including quality control samples) will be analyzed by ICP-MS for 53 elements.

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 2011-2
Northern BC Sample Reanalysis Project

Efforts by Geoscience BC to update older government funded regional geochemical survey (RGS) information have been ongoing since 2007. In 2010, drainage sediment samples from previous RGS programs conducted in northern BC from 1978 to 1997 were targeted for reanalysis by aqua-regia digestion ICP-MS. These surveys cover parts of NTS map areas 094C, D, E, L, M and 104B, G, I, O, P. This extremely prospective region contains the Stewart, Toodoggone and Cassiar mining camps which host numerous mineral prospects and producing mines.

A total of 7651 samples were analyzed for 53 analytes by ICP-MS and the data have now been prepared for public release as Geoscience BC Report 2011-2. The digital compilation combines original survey information with new data for base, precious, pathfinder plus rare earth elements. In order to provide full coverage of the study area, data from more recent RGS programs conducted in NTS map areas 104A, H and J have also been included in the compilation.


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