火成岩体 meaning in Chinese

igneous body
igneous mass
mass of igneous rock

In prophase there existed thermal and magma activity , and before the
其下为一火成岩体隆起带，之下有更深部的热力作用区。
The carrying system in the area , dominated by the vertical carrying system , especially type i and type ii carrying faults , linking to every other types of carrying systems each other , composed a three - dimensional network carrying system
并指出本区油气输导系统是一个以垂向输导系统为主，以、类主输导断层为骨干，与各类垂向输导断层、油源输导层、不整合以及火成岩体等输导系统相沟通的复杂的三维油气输导网络系统。