藏东地区晚石炭-晚二叠世古地磁新结果:对羌北-昌都地块构造演化的制约
- 作者：Cheng Xin程鑫Wu Hanning吴汉宁Diao Zongbao王海军Wang Haijun刁宗宝Ma Lun马轮Zhang Xiaodong张晓东Wei Nana魏娜娜
- 会议时间：2012-10-16
- 关键词：区域构造地质学 ; 古地磁学 ; 构造演化 ; 沉积环境 ; 各向异性
- 作者单位：State Key Laboratory of Continental Dynamics,Department of Geology,Northwest University Xi'an 710069
- 母体文献：中国地球物理学会第二十八届年会论文集
- 会议名称：中国地球物理学会第二十八届年会
- 会议地点：北京
- 主办单位：中国地球物理学会
- 语种：chi
摘要
We report paleomagnetic results from Late Carboniferous-Late Permian strata in eastern Tibet (China), aim to clarify the tectonic and paleogeographic evolution of the northern Qiangtang-Qamdo block, which is a key to the study of plate boundary between the Gondwanaland and Eurasia during the Late Paleozoic time. Two hundred and nineteen samples-including limestone, muddy siltstone, basalt, lava, and tuff were collected at 24 sites in the Upper Carboniferous and Middle-Upper Permian successions, respectively.