subsidence
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Substantiivi
subsidence englanniksi
{{quote-text|en|year=1754|author=William Warburton|title=Sermon preached before the King, at Kensington, October 27, 1754
A sinking of something to a lower level, especially of part of the surface of the Earth due to underground excavation, seismic activity or underground or ground water depletion, or the rocks in a geological basin, due to continued deposition from above.
(quote-journal) The rate of subsidence may vary from less than an inch a month in the case of a deep seam of coal, to as rapid a decline as 16in a month above a shallow seam. The effect of subsidence on permanent way and civil engineering structures needs no emphasis.
(quote-book)
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