spec. in Geology. The influx of rock in a state of fusion into fissures or between strata; a portion of intruded rock.
| 单词 | θ5128 |
| 释义 | the world > the earth > structure of the earth > formation of features > tectonization or diastrophism > [noun] > intrusion (7) intrusion1839 spec. in Geology. The influx of rock in a state of fusion into fissures or between strata; a portion of intruded rock. secretion1882 Geology. (See quot. 1882.) Subcategories:— stoping (1) — piercement (1) — tourmalinization (2) — migmatization (1) |
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