coal mining Choosing a mining method | Britannica It is a general rule that technological factors dictate a clear choice between surface and underground mining,, Openpit mining, difference between the mine . know more
06/09/2006· What is the difference between an opencast mine and an open pit mine? ... What's The Difference Between Open Pit Mining, Underground Mining, ...
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09/05/2011· Best Answer: Open pit mining refers to the removal of rocks and minerals at earths surface. This type of mining is most often used when the resources (rocks and minerals) are found at relatively shallow depths, .
A quarry is the same thing as an openpit mine from ... What is the difference between opencast mining ... What is the difference between placer mining and dredge ...
The Difference Between Underground Mining And Surface Mining. 1. The Difference Between Underground Mining And Surface Mining The process of removal of essential mineral ores or geological substances from soil or sand is called mining. These minerals are of great value and are abundantly available in rocks and earth's surface.
17/07/2014· Open pit vs underground. ... open pit and underground mine in different combinations of ... it's the same from open to underground. The difference it's in ...
There are two ways to extract a mineral by digging it up, or accessing it by tunnels. This pretty much sums up the comparison of surface vs. underground mining. But ...
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What is the difference between openpit mining and,Underground mining operations attempt to follow the course of a valuable ore deposit as it winds its way in three dimensions underground.
Underground mining. What makes underground mining so expensive is getting valuable ore back to the surface, whether through a horizontal or vertical excavation passage. Compared to open pit mining, which often mines soil, gravel, and inexpensive ores, underground mining is targeted at more valuable ore deposits.
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difference between a open pit mine and an underground mine with shafts; What is an open cut mining different to an underground mining it is open not underground (it has no roof) difference between an open pit mine a quarry and an underground ... They may also be started into the wall of an open cut mine.
09/05/2011· Open cast is when the minerals are mined from the top. and make a massive big hole in the earth. Underground mining is .
Counting against underground mining are the costs, ... For an underground mine the development stage is ... What's the Difference Between Great Britain and the ...