摘要
西藏1∶50000古木加康地区区域地质调查首次采用洋板块地层(结合带)构造-岩石地层填图方法对地层进行划分;进行了大量锆石U-Pb测年,划分出了寒武纪、晚三叠世、白垩纪以及始新世四期岩浆活动;大致划分了三个变形期次、三个变形亚带;对测区构造进行了深入详细的解析,划分了三个构造期次,五个构造单元,建立了构造格架。
1:50,000 regional geological survey in the Gumujiakang area,Tibet is carried out by mapping method of tectonic-lithostratigraphy for oceanic plate strata(joint zone).Four magmatic activity periods such as Cambrian,Late Triassic,Cretaceous and Eocene,three deformation stages are divided by a large amount of zircon U-Pb dating data.Three deformed zones are divided.Three tectonic periods and five tectonic units are divided.The tectonic framework is established in this region.
作者
王燚
董磊
黄勇
杨学俊
吕志伟
贾小川
叶春林
韩飞
WANG Yi;DONG Lei;HUANG Yong;YANG Xue-jun;LV Zhi-wei;JIA Xiao-chuan;YE Chun-lin;HAN Fei(Sichuan Key Laboratory of Evaluation and Utilization of Rare REE Strategic Resources,Sichuan Institute of Geological Survey,Chengdu 610081;Chengdu Center,China Geological Survey,Chengdu 610081)
出处
《四川地质学报》
2020年第4期561-565,共5页
Acta Geologica Sichuan
基金
国家重点研发计划(2016YFC0600308,SQ2018YFC060162)
中国地质调查局地质调查项目(DD20160015)。
