Geoscience BC Report 2011-5

Catchment analysis and interpretation of stream sediment data from QUEST-South, British Columbia
by D.C. Arne and E.B. Bluemel, ioGlobal Solutions Inc.

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Report Description
Catchment analysis and interpretation of geochemical data have been undertaken for 9041 stream sediment samples from the QUEST-South project area of southern British Columbia. The geochemical data consist of new analyses for 8536 archived regional geochemical samples (RGS) that were previously re-analyzed by Geoscience BC (Report 2010-4) using modern analytical methods and 785 new stream sediment samples collected to augment the existing RGS samples (Report 2010-13).

A range of digital products accompany this report. These include a spreadsheet containing the compiled stream sediment data, catchment areas and dominant bedrock type; GIS files showing sample locations and catchments; a series of gridded geotiff images for raw, levelled and residual data for most elements; gridded pathfinder associations for a number of common mineral deposit types (orogenic Au, epithermal Au, base metals and porphyry Cu deposits) as geoTIFF and pdf maps; and RGB thematic maps for these pathfinder associates. The levelled and residual data provide new insights into the regional stream sediment geochemical data, and reveal subtle trends and areas of elevated metal concentration that may warrant follow-up investigation.

Suggested Reference
Arne, D.C. and Bluemel, E.B. (2011): Catchment analysis and interpretation of stream sediment data from QUEST-South, British Columbia; Geoscience BC, Report 2011-5.

Additional Links
  • Project Page - Contains additional information on this project, including posters and technical articles.
  • QUEST-South Project - Contains links to all data and publications produced as part of the QUEST-South project.

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