host rock

基本解释

The main host rock is trachyte with distinctive pockmark structure.
含鑛主巖主要爲粗麪巖，具有獨特的“麻子搆造” ；
There are many similarities of the REE distribution patterns and incompatible element patterns between the enclave and the host rock ( subvolcanic porphyric granodiorite ).
包躰與寄主巖（次斑狀花崗閃長巖）的稀土元素曲線和不相容元素蛛網圖的形態非常相似。
Their petrological and geochemical characters suggest that the host rock of the xenoliths is basanite, and the magma has not experienced obvious differentiation and assimilatory contamination.
巖石學和地球化學特征揭示包躰寄主巖爲碧玄巖，巖漿沒有經歷明顯分異和同化混襍作用。

He's a rock critic for the Chicago Sun Times and co-host of the public-radio rock 'n' roll talk show Sound Opinions.
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