Early Permian Magmatic Events in the Alxa Metamorphic Basement: Evidence from Geochronology
详细信息
- 责任者：Geng Yuansheng (Institute of Geology ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Zhou Xiwen
- 刊名：Acta Petrologica Sinica
- 出版年：2012
- 卷期：28(9)
- 关键词：花岗岩类 ; granitoid ; 片麻岩 ; gneisses ; 铀—铅计时 ; U-Pb dating ; 阿拉善盆地 ; Alxa Basin
- 页码：p.2667-2685
- 图表：9 illus., 3 tables, 61 refs.
- 分类号：0801
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
Abundant weakly-deformed granitoids of Early Permian have been discerned in the Alxa metamorphic basement. The occurrence of the voluminous granitoids of Early Permian in the Alxa metamorphic basement demonstrates that the basement had been strongly involved and reworked in the collision orogeny of the Central Asian Orogenic belt in the Late Paleozoic.