Underground mining hard rock -

The method selected is determined by the size, shape, orientation and type of orebody to be mined. The orebody can be narrow vein such as a in the Witwatersrand, the orebody can be massive similar to the Olympic Dam , South Australia, or Cadia-Ridgeway , New South Wales.The width or size of the orebody is determined by the grade as well as the distribution of the ore.

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