Difference Between Open Cast Mining And Underground Mining

2019-08-03

Summary:When the minerals are found in rich veins but in large volumes of sterile rocks, the only way to mine them is the undergro

What is underground mining

When the minerals are found in rich veins but in large volumes of sterile rocks, the only way to mine them is the underground mining method. The material obtained, usually precious minerals or non-ferrous metals, are moved to the surface where they are subjected to grinding and concentration processes to benefit them and enrich them, separating the useful metal from the ore, from the accompanying or sterile mineral, called gangue.

Open Cast Mining VS Underground Mining

What is open pit mining

On the other hand, open-pit mining also be called surface mining, is the most common mining and ranges from very low-priced minerals to finely disseminated gold deposits. When minerals and deposits are found close to the surface and spread across a large distance, the best way to mine is to use the open cut mining method. In this process, the area is cleared of all topsoil and vegetation, this material is stockpiled and used later when rehabilitating the area once mining is finished.

Differences between open pit and underground mining

Main Difference
Working Principle
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