The first and most visible distinction is the one between surface mining and underground mining. In surface mining, the mineral of interest is removed in open air, frequently after preliminary removal of sterile overburden. In underground mining, access to a subsurface mineral is developed and the mineral of interest is removed underneath overlying ground
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- Economic transaction mining project
- what solutions exist to ensure
- Defined as mining that involves
- A compressed between a wobbling mantle
- Economic transaction mining project
Solution 1
Require federal agencies to collaborate on a single environmental review documents, for establishing a reasonable timeframe.