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单词 θ4889
释义
the world > the earth > structure of the earth > structural features > discontinuity or unconformity > [noun] > intrusion (36)
intrusion1839

spec. in Geology. The influx of rock in a state of fusion into fissures or between strata; a portion of intruded rock.

intrusive1895

An intrusive rock or rock mass.

emplacement1914

Geology. The action or process by which a body of (usually igneous) rock or ore is placed in position; esp. = intrusion, n. 1b. Also: an instance…

pluton1934

A large body of intrusive igneous rock.

facies1965

Geology. The character of a part of a formation distinguished by differentiating qualities such as the fossils it contains, the composition and…

Subcategories:

— branch of (1)
— ring (1)
— boss (2)
— lens (3)
— plug (3)
— ridge (1)
— lateral (1)
— dike (3)
— sill (2)
— others (10)
— roof pendant (1)
— host (3)
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更新时间:2025/3/22 6:28:47