Strip mining

Surface mining is a type of mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels. Surface mining is used when deposits of commercially useful minerals or rock are found near the surface; that is, where the overburden (surface material covering the valuable deposit) is relatively thin or the material of interest is structurally unsuitable for tunneling (as would usually be the case for sand, cinder, and gravel). Where minerals occur deep below the surface—where the overburden is thick or the mineral occurs as veins in hard rock— underground mining methods are used to extract the valued material. Surface mines are typically enlarged until either the mineral deposit is exhausted, or the cost of removing larger volumes of overburden makes further mining uneconomic.
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Noun
1. the mining of ore or coal from an open mine
(synonym) opencast mining
(hypernym) mining, excavation

A process that uses machines to scrape soil or rock away from mineral deposits just under the earth's surface.

Cutting deep trenches to remove minerals such as coal and phosphate found near the earth's surface in flat or rolling terrain. See surface mining.

Eng: strip mining
Urdu: پٹی دار معدن کاری ۔ زمین کی سطح سے پتھر صاف کرنے کا عمل