felsite
n. [岩] 霏细岩;[地质] 致密长石
例句
The Beiyu trondhjemite, together with felsite porphyry and gabbro, forms an intrusive complex extending S-N in the western part of the Zhongtiao rift.
北峪奥长花岗岩 (体 )位于中条裂谷的西部 ,和霏细斑岩及辉长岩组成侵入杂岩体 ,呈南北向展布。