Geoscience BC Report 2010-8

An Assessment of Soil Geochemical Methods for Detecting Copper-Gold Porphyry Mineralization through Quaternary Glaciofluvial Sediments at the WBX-MBX and 66 Zones, Mt. Milligan, North-Central British Columbia (NTS 93N)
by D.R. Heberlein (Heberlein Geoconsulting)

Report Components

Report Description
This study is the second and final part of a Geoscience BC funded project (Project 2009-019) carried out by the author to test the effectiveness of a variety of commonly used chemical extractions at detecting mineralization through thick Quaternary glaciofluvial cover. The first part of the study was carried out at the Kwanika Central Zone and released as Geoscience BC Report 2010-03. This final report focuses on Terrane Metals Corp.'s Mt. Milligan Copper-Gold Project.

Results of this study show that surface disturbance has significantly downgraded the effectiveness of most of the chemical extractions tested in this study. Nevertheless, results indicate that the Ah and upper B horizons are the most appropriate sample media and that aqua regia is the favoured digestion method, which is consistent with the outcomes of the Kwanika study. Poor element responses for just about all of the extractions are attributable to destruction of the soil profile over the mineralization. Nevertheless, SGH and the ratio of weak extraction Ca to aqua regia Ca, accurately locate the position of the mineralization through the cover.

Suggested Reference
Heberlein, D.R. (2010): An Assessment of Soil Geochemical Methods for Detecting Copper-Gold Porphyry Mineralization through Quaternary Glaciofluvial Sediments at the WBX-MBX and 66 Zones, Mt. Milligan, North-Central British Columbia; Geoscience BC, Report 2010-8, 68 p.

Additional Links
  • Geoscience BC Report 2010-03: An Assessment of Soil Geochemical Methods for Detecting Copper-Gold Porphyry Mineralization through Quaternary Glaciofluvial Sediments at the Kwanika Central Zone, North-Central British Columbia
  • Project Page - Contains additional information on this project, including posters and technical articles.

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