Geocharacterization of low-grade, disseminated gold and silver ores with applications to in situ mining.

Details

• Personal Author:
  Blake, Rolland L. ; Earley D III
• Description:
  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. [Description provided by NIOSH]
• Subjects:
  Minerals Mining Occupational Health Safety Silver
• Keywords:
  Mining-industry; Mineral-deposits; Gold-mines; Silver-compounds
• Series:
  Mining Publications
• ISSN:
  0026-5187
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Minnesota ; OSHA Region 5
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  TCRC - Twin Cities Research Center
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  42
• Issue:
  6
• NIOSHTIC Number:
  nn:10008239
• Citation:
  Min Eng 1990 Jun; 42(6):599-603
• CAS Registry Number:
  Gold (CAS RN 7440-57-5) ; Pyrite (CAS RN 1309-36-0) ; Quartz (SiO2) (CAS RN 14808-60-7) ; Silver (CAS RN 7440-22-4)
• Federal Fiscal Year:
  1990
• Peer Reviewed:
  True
• Source Full Name:
  Mining Engineering
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
• Download URL:
  https://stacks.cdc.gov/view/cdc/246714/cdc_246714_DS1.pdf
• File Type:
  [PDF - 168.02 KB ]