Mining  Mining Techniques

Mining Techniques

Mining Techniques is divided into two types: surface mining and underground mining. Mining targets are divided into two categories of materials: placer deposits and lode deposits. If a mineral is stable chemically and is resistant physically, it can be eroded from its primary hard-rock occurrence and transported to river channels, deltas or other sedimentary environments where it can be deposited in a sedimentary bed. Diamonds, gold and other gemstones can be found in placer deposits. Lode deposits are a very important source of precious metals, although they also can contain base metals. Deposits like these are found in greenstone belts, areas of metamorphosed volcanic or sedimentary rocks. The deposits themselves can have almost any host rock, but mafic volcanic rocks, felsic intrusive rocks and some sedimentary rocks are the most common ones. Both types of deposits are mined by surface and underground methods.

Some of the mining techniques are:

Alpha Hydraulic Diggings
Borehole mining
Box cut
Deepsea mining
Dredging
Drift mining
Fire-setting
Glory hole (petroleum production)
Heap leaching
Hydraulic mining
In-situ leach
Landfill mining
Longwall mining
Mountaintop removal mining
Omega Hydraulic Diggings
Open-pit mining
Placer mining
Quarrying
Quartz reef mining
Retreat mining
Room and pillar
Shaft mining
Shrinkage stope mining
Slope mining
Strip mining
Sulfide mining
Underground mining (hard rock)