地质通报2016，Vol.35Issue(9)：1411-1419,9.
新疆东准噶尔阿尔曼泰蛇绿构造混杂岩带中辉长岩LA-ICP-MS锆石U-Pb年龄及其地质意义
LA-ICP-MS zircon U-Pb age of gabbro from Aermantai ophiolite in east Junggar, Xinjiang, and its geological significance
摘要
Abstract
Aermantai ophiolite lies in the east of Junggar and has recorded tectonic evolution of the paleo-Asian Ocean. Through the anal⁃ysis of major elements, trace elements, rare earth elements and LA-ICP-MS zircon U-Pb ages of gabbro, the authors found that the origi⁃nal magma of gabbro was derived between depleted mantle and continental crust, affected by crust assimilation and hybridization. The age of zircon is 514.3±3.7Ma, suggesting that the formation of the ophiolite took place in Middle-Cambrian—Early Ordovician period.关键词
阿尔曼泰蛇绿岩/辉长岩/LA-ICP-MS锆石U-Pb年龄/东准噶尔/新疆Key words
Aermantai ophiolite/gabbro/LA-ICP-MS zircon U-Pb age/east Junggar/Xinjiang分类
天文与地球科学引用本文复制引用
冯晓强,崔玉宝,程龙,刘玉梅,鱼静..新疆东准噶尔阿尔曼泰蛇绿构造混杂岩带中辉长岩LA-ICP-MS锆石U-Pb年龄及其地质意义[J].地质通报,2016,35(9):1411-1419,9.基金项目
中国地质调查局项目 （）
