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Overburden is also used for all soil and ancillary material above the bedrock horizon in a given area.. By analogy, overburden is also used to describe the soil and other material that lies above a specific geologic feature, such as a buried astrobleme, or above an unexcavated site of archeological interest.
In mining, tailings or tails are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore.Tailings are different from overburden, which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed.
It is thus distinct from overburden, which is the waste rock or materials overlying an ore or mineral body that are displaced during mining without being processed, and from tailings, which is rock already stripped of valuable minerals.
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The overburden from MTR is either placed back on the ridge, attempting to reflect the approximate original contour of the mountain, [4] and/or is moved into neighboring valleys. [5] When excess rock and soil containing mining byproducts are disposed into nearby valleys, the valleys are called "holler fills" or "valley fills". [1] [3] [6]
Rather than ending up on the scrap heap, Saul quickly became an integral part of Breaking Bad. Odenkirk was promoted to series regular for the show’s third season, and continued to appear in the ...
President Donald Trump said he would provide details Thursday of what he and Elon Musk's Department of Government Efficiency (DOGE) claim are billions of dollars of wasteful and fraudulent ...
Ok Tedi environmental disaster, 1984 – As of 2006, mine operators have discharged about two billion tons of tailings, overburden and mine-induced erosion into the Ok Tedi river system. About 1,588 square kilometres (613 sq mi) of forest has died or is under stress.