This first Issue in the series contains nine articles written by experts from the mining industry, regulatory authorities, and academia, and incorporates the latest research.There are four main forms of motorized mining technology in garimpos; in ascending order of sophistication they are the moinho, the chupadeira, the balsa, and the draga. The moinho is a small mechanical crusher used for working both goldanbsp;...
|Title||:||Mining and Its Environmental Impact|
|Author||:||Ronald E. Hester, Roy M. Harrison, Royal Society of Chemistry (Great Britain)|
|Publisher||:||Royal Society of Chemistry - 1994-01-01|