Mining and it's Problemsby Razaan Abakar | 20-08-2017 20:17 |
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 Mining is the extraction of valuable minerals or other geological materials from the earth usually from an orebody, lode, vein, seam, reef or placer deposits. These deposits form a mineralized package that is of economic interest to the miner. Types of Mining: 1. Surface Mining: Scoop ore off surface of earth. two types: a. Open pit Mining: Funnel shaped hole in ground, with ramp spiraling down along side, allows moderately deep ore to be reached. b. Strip Mining: Blast, scoop off rock overburden, and then scoop out ore material. Fairly shallow. Economics of strip mining depend on stripping ratio. Large land area can be involved, especially for coal and bauxite.
2. Underground Mining: Use of adits and shafts to reach deeply buried ores.
Environmental Problems of Mining:
Sources: https://en.wikipedia.org/wiki/Mining www.newmont.com |
