摘要
新疆可可托海地区有三种花岗岩,它们形成于造山运动不同阶段:片麻状黑云母花岗岩是海西造山运动早期的产物;似斑状花岗岩形成于海西晚期;二云母花岗岩是印支一燕山期侵入而成。三者的岩石、岩石化学、CMF值和QAP图解、亲合度、微量无素、稀土元素、铅和氧同位素组成等研究表明,它们是陆壳交代重熔成因的一个连续成岩系列。
There are three kinds of granite which were formed in different orogenic stages in Koktokay area. The gneissic biotite granites were the product of early Hercynian orogeny, the porphyritic granites were formed in the late Hercynian stage and two-mica granites were intruded during Indonisian - Yanshanian episode. The Studies on CMF values, QAP diagram. affinity, trace elements, rare earths elements and Oxygen and Lead isotopes reflect that this rock series is caused by anatexis metasomatism of the continental crust.
出处
《新疆地质》
CAS
CSCD
1992年第3期261-271,共11页
Xinjiang Geology
