Question

difference between open cast mining and underground mining

Answer 1

OPEN CAST MINING

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.

UNDERGROUND MINING

Underground Mining is generally used for areas where the mineral seam is too far underground for open cut mining to be of use.  

A tunnel, called a decline, is created to allow workers and machinery to reach the location of the minerals. Stope mining is used for most hard rock mining of minerals such as copper, silver, lead and zinc.

Answer 2

In open cast mining there is space which they can go in the mining.

In underground miningwe have to go underground