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Ghana: Gold Mining Resurgence: Difference between revisions
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Ghana: Gold Mining Resurgence (view source)
Revision as of 12:04, 8 April 2015
, 12:04, 8 April 2015→Alteration of the physical environment
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''How artisanal miners extract gold'' | ''How artisanal miners extract gold'' | ||
''In a typical small-scale gold mining operation where hard rock is mined, the ore is excavated manually and size reduction is | ''In a typical small-scale gold mining operation where hard rock is mined, the ore is excavated manually and size reduction is carried out using a combination of jaw and rocker crushers, hammer, disc and stamp mills. The stamp mills and rockers are | ||
carried out using a combination of jaw and rocker crushers, hammer, disc and stamp mills. The stamp mills and rockers are | |||
manually operated while the others are powered by diesel or electricity. Generally, the milled material is washed in a sluice | manually operated while the others are powered by diesel or electricity. Generally, the milled material is washed in a sluice | ||
lined with corduroy, jute material, miner’s moss or astro turf to obstruct the flow of slurry and concentrate gold particles. | lined with corduroy, jute material, miner’s moss or astro turf to obstruct the flow of slurry and concentrate gold particles. | ||