侵入作用是指地下岩浆上升侵入并占据一定空间的作用。根据岩浆侵入的环境和侵入作用方式，可以分为深成侵入作用和浅成侵入作用。
5、侵入作用(intrusion):岩浆上升到地下某一深处，占据一定空间，基本停止运移，最后冷凝结晶，这种活动称为侵入作用，由岩浆侵入作用所形成的岩石称为侵...
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成因上与火山喷发、英安斑岩体侵入作用有关，具有斑岩铜矿的一些特征。
Its genesis is related to volcanic eruption and dacite porphyry intrusion. And it has some characteristics of porphyry Cu deposit.
五牧场区是内蒙东部伊敏褐煤盆地中一个因次火山侵入作用形成的局部的烟煤区。
Wumuchang Area is a local bituminous coal district metamorphized by sub-volcanics in Yiming Coal Field which is located in northeast China.
海洋区内喷发作用强于侵入和变质作用，而大陆边缘区侵入作用强于变质和喷发作用。
The eruption was stronger than both intrusion and metamorphism in the ocean region while the intrusion was stronger than both eruption and metamorphism in the continental margin region.
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