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British Columbia Mine Reclamation Symposium

Use of lithologic descriptions for waste rock characterization : case studies from the Eskay Creek project Stewart, C. J.; Higgs, T. W.; Napier, William A.


This paper outlines the program conducted at Eskay Creek to assess acid generation potential with a focus on the use of lithology and geochemical tests for classification and project planning. The paper discusses variation within rock types and in particular differences in behaviour of massive and brecciated forms of Rhyolite. A primary recommendation is that geological site-specific information be merged with the geochemical sampling, analyses and interpretation work. Other recommendations for ARD programs for new projects are also included.

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