Mining in which the material is removed without disturbing the top layer of soil.
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- Mining industries provide most of the materials we rely on to build infrastructures and ... At the same time, mining is the human activity that has been more disturbing to .... Total amounts of metals extracted already from the Earth crust and ..... and several soil layers to confine radioactive uranium mill tailings.
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Strip mining" is the practice of mining a seam of mineral, by first removing a long strip of overlying soil and rock (the overburden). It is most commonly used to mine coal and lignite (brown coal). Strip mining is only practical when the ore body to be excavated is relatively near the surface.
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