Conference Proceedings
Gold Mining, Metallurgy and Geology, Kalgoorlie
Conference Proceedings
Gold Mining, Metallurgy and Geology, Kalgoorlie
The Geology and the Highly Selective Open Cut Mining Method of the Small, Irregular, Narrow and Low Grade St. George Orebodies at Mount Magnet
The St George orebodies are situated within the tectonically disrupted eastern limb of the Boogardie Syncline._x000D_
Highly disturbed rafts of banded chert formations occur within a sequence of felsic volcanic tuffs. The chert forms the hostrock for the gold mineralization._x000D_
The gold distribution within the irregular and narrow banded chert formations is erratic and patchy. The average gold content of the two orebodies is between 3 - 4 g/t Au._x000D_
Economic mining of these relative small, irregular and low grade St. George orebodies can be carried out by using a highly selective mining method._x000D_
The highly selective mining method uses an excavator as the principle mining tool._x000D_
Blasting, breaking and loading of the rocks is done in a different way than by using a front- end loader as with the conventional mining method. Simple, and therefore cheaper, blasting breaks the rocks and lifts them up without major displacements.
Highly disturbed rafts of banded chert formations occur within a sequence of felsic volcanic tuffs. The chert forms the hostrock for the gold mineralization._x000D_
The gold distribution within the irregular and narrow banded chert formations is erratic and patchy. The average gold content of the two orebodies is between 3 - 4 g/t Au._x000D_
Economic mining of these relative small, irregular and low grade St. George orebodies can be carried out by using a highly selective mining method._x000D_
The highly selective mining method uses an excavator as the principle mining tool._x000D_
Blasting, breaking and loading of the rocks is done in a different way than by using a front- end loader as with the conventional mining method. Simple, and therefore cheaper, blasting breaks the rocks and lifts them up without major displacements.
Contributor(s):
R Balde
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- Published: 1984
- PDF Size: 0.684 Mb.
- Unique ID: P198404033