Question

what is the difference between alluvial mining and underground mining

Answer 1

Alluvial mining is a type of surface mining whereas underground mining is procuring minerals from under the ground.

Answer 2

Answer:

In alluvial mining, minerals are extracted by dredging alluvial deposits. In surface mining, the topsoil and bedrock are removed to access the ore and it's all done from the surface. In underground mining, the bedrock is kept intact and tunnels are used to access the ore from below.