Geology a body of intrusiveigneousrock of which less than 100 square kilometers (40 square miles) is exposed.
一种侵入性火成岩体，少于100平方公里40平方英里，暴露在地表外。
2
A coarse-grained, plutonic or intrusiveigneousrock of felsic composition having large crystals of quartz, feldspar and mica.
一种粗粒的，深成的或侵入的长英质成分的火成岩，含石英、长石和云母的粗大晶体。
3
In study area, the igneous rocks consist of intrusive and volcanic rocks. the intrusive rock in this area are called Tanggula mountain rock which is part of Tanggula magmatic belt.