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Use of tracer for in situ stope leaching solution containment research.

Authors
Miller-NC; Schmuck-CH
Source
Denver, CO: U.S. Department of the Interior, Bureau of Mines, RI 9583, 1995 Jan; :1-43
Link
NIOSHTIC No.
10005901
Abstract
In situ stope leaching is an innovative mining system that reduces the surface impacts of conventional underground mining. As in any leaching operation, stope leaching requires hydrologic site characterization and control of leaching solutions. Several tracer tests, using sodium chloride (NaCl) in various concentrations, were conducted by the U.S. Bureau of Mines (USBM) in an underground experimental stope to simulate a leaching environment. The tests were conducted in fractured crystalline rock that was partially water-saturated. As tests progressed, the surrounding fractures became more saturated. A predominant flow direction away from the stope was found during testing. Testing procedures, results, and a remediation plan for in situ leaching based on field observations are presented in this report.
Keywords
Underground-surveys; Site-characterization; Materials-recovery; Minerals; Containment; Test-methods; Mine-simulation; Sodium-chloride; Underground-mining; Leaching; Solutions; Tracer-techniques
Publication Date
19950101
Document Type
Report of Investigations
Fiscal Year
1995
NTIS Accession No.
PB96-117866
NTIS Price
A04
Identifying No.
RI-9583
NIOSH Division
DRC
Source Name
Denver, CO: U.S. Department of the Interior, Bureau of Mines, RI 9583
State
CO
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