contour strip mining
coal mining
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association with auger mining
- In auger mining
Augering is usually associated with contour strip-mining, recovering coal for a limited depth beyond the point where stripping becomes uneconomical because the seam of coal lies so far beneath the surface.
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surface coal mining
- In coal mining: Mining methods
…be broadly classified into (1) contour strip mining, (2) area strip mining, (3) open-pit mining, and (4) auger mining.
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