Geology. A mass of rock which has been forced upwards by tectonic pressures, lifting overlying strata into the form of a dome; esp. such a mass…
单词 | θ4894 |
释义 | the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [noun] > intrusion > plug (3) plug1906 Geology. A mass of rock which has been forced upwards by tectonic pressures, lifting overlying strata into the form of a dome; esp. such a mass… salt dome1908 a dome-shaped geological structure formed around and over a salt plug, often the source of oil or other minerals; also, a salt plug. salt plug1952 an approximately cylindrical mass of salt, typically a mile in diameter and several miles deep, which has been forced upwards by subterranean… |
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