Question

distinguish between: shaft and open cast mining

Answer 1

Open cast mining : minerals that lie at shallow depths are taken out by removing the surface layer this is known as open cast mining

Shaft mining : deep bores called shafts , have to made to reach mineral deposits that lie at great depths is known as shaft mining

These two types are from mining of minerals


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Answer 2

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1. Open cast mining in which large pits are dug to excavate the ores lying at shallow depths beneath the surface of the earth. Minerals that lie near the surface are also dug out by the process of quarrying. ... Deep shaft mining in which deep holes are made to reach the ore lying at great depth beneath the crust