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Geocharacterization of low-grade, disseminated gold and silver ores with applications to in situ mining.
Blake-RL; Earley-D III
Min Eng 1990 Jun; 42(6):599-603
The U.S. Bureau of Mines is investigating the potential for in situ mining (ism) of gold and silver mineralization. This preliminary study examined samples from several types of deposits. It used light optical microscopy and the electron microprobe to characterize the ore and gangue minerals and textural features of these samples. This included the spacial relations between the target minerals and likely natural fluid channelways. Low-grade disseminated deposit types from the western United States were found to contain fracture- hosted or matrix-hosted gold and silver minerals, some of which are encapsulated by quartz or pyrite. Successful ism application to gold and silver deposits needs this data in order to understand potential problems of the lixiviant reaching the ore minerals.
Mining-industry; Mineral-deposits; Gold-mines; Silver-compounds
7440-57-5; 14808-60-7; 1309-36-0; 7440-22-4
OP; Journal Article
Issue of Publication
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division