The Xiaobaishitou biotite-granite pluton is situated in the southeastern margin of the central Tian Shan block.
小白石头黑云母花岗岩位于中天山地块东部南缘。
参考来源 - 新疆东天山小白石头黑云母花岗岩年代学、地球化学特征及其地质意义·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
N a black or dark green mineral of the mica group, found in igneous and metamorphic rocks. Composition: hydrous magnesium iron potassium aluminium silicate. Formula: K(Mg,Fe)3(Al,Fe)Si3O10(OH)2. Crystal structure: monoclinic 黑云母
On the basis of composition of biotites, the forming condition of granite and its connection with mineralization are carried out.
同时根据黑云母的成分等得出了花岗岩的形成条件及其与成矿关系。
The petrographical facies studies indicate that the magma-crystallined epidotes , bornblendesand biotites were distributed in TTG rocks.
详细的岩相学研究表明，TTG岩类中存在岩浆结晶的绿帘石、角闪石和黑云母等。
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