Mark J. Logsdon

Thumbnail image of Draft Final Proposal for Geochemical Characterization of Resolution Copper Mining Block-Caving Zone memo cover

Resolution Copper Mining Company (RCM), acting jointly with Rio Tinto (RT-OTX), asked Mark Logsdon (Geochimica, Inc, Aptos, CA) to prepare a plan to geochemically characterize the rock mass that may be subject to chemical weathering as a consequence of block-caving operations at The Resolution property near Superior, Arizona. Results from this study will be used by RCM and its contractors to develop a geochemical model of the block-cave zone as it affects operational and closure considerations.

Thumbnail image of Geochemical Characterization of Development Rock for Proposed Shaft No. 10 technical memo cover

The purpose of this tech memo is to describe and present the results of a ADEQ Tier 1 geochemical characterization program of development rock for proposed Shaft No. 10 based detailed sampling and analysis of samples from a pilot drill hole along the entire vertical section of the proposed shaft.

Media Point of Contact

Amanda Oliver
amanda.oliver@usda.gov

Apache Leap Special Management Area
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