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Coal Contour Surface "Strip" Mining . The Contour or Bench method of surface or strip mining is usually associated with coal, where a seam or multiple seams are located at a certain elevation or elevations through a mountain or hill.

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Strip mining: Strip mining, removal of soil and rock (overburden) above a layer or seam (particularly coal), followed by the removal of the exposed mineral. The common strip-mining techniques are classified as area mining or contour mining on the basis of …

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Fourteen months after the world watched in astonishment as poorly regulated coal-washing chemicals contaminated the Elk River in West ia, coal country residents and supporters are gearing up for an epic showdown on March 16 with the state's Department of Environmental Protection—and the U.S. Congress—over the mounting death toll and health crisis from mountaintop removal strip mining.

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pro 039 s and cons of dirty gold mining; Impacts of Uranium In-Situ Leaching - WISE Uranium Project [Otton 2009] J.K. Otton, S. Hall: In-situ recovery uranium mining in the United States: Overview of production and remediation issues, International Symposium on Uranium Raw Material for the Nuclear Fuel Cycle: Exploration, Mining, Production

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STRIP MINING: METHODS OF CONTROL BY THE THREE LEVELS OF GOVERNMENT M. DEBORAH BENOIT* INTRODUCTION Recent devastation of the landscape by strip mining operators is by now a familiar story to all concerned with the environment. The arid and bleak landscapes that are the left-over product of strip mining

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Strip mining | Britannica.com

area strip mining. type of surface mining used where the terrain is flat. an earthmover strips away the overburden, and a power shovel digs a cut to remove the mineral deposit. The trench is then filed with overburden and a new cut is made parallel to the previous one. asthenosphere.

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Surface mining - Wikipedia

Jun 27, 2016· They are only advantages for shallow (<150m) flat lying tabular or sheet deposits like coal. * Continuity of flow sheet or process...not batch process...so good capital utilisation * Large scale equipment, so economies of scale * Suitable for ow...

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pro 039 s and cons of dirty gold mining; Impacts of Uranium In-Situ Leaching - WISE Uranium Project [Otton 2009] J.K. Otton, S. Hall: In-situ recovery uranium mining in the United States: Overview of production and remediation issues, International Symposium on Uranium Raw Material for the Nuclear Fuel Cycle: Exploration, Mining, Production

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Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the overlying rock is left in place, and the mineral is removed through shafts or tunnels.

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