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

Authors
Blake-RL; Earley-D III
Source
Min Eng 1990 Jun; 42(6):599-603
NIOSHTIC No.
10008239
Abstract
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.
Keywords
Mining-industry; Mineral-deposits; Gold-mines; Silver-compounds
CODEN
MIENAB
CAS No.
7440-57-5; 14808-60-7; 1309-36-0; 7440-22-4
Publication Date
19900601
Document Type
OP; Journal Article
Fiscal Year
1990
NTIS Accession No.
NTIS Price
Identifying No.
OP 173-90
Issue of Publication
6
ISSN
0026-5187
NIOSH Division
TCRC
Source Name
Mining Engineering
State
MN
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