Discovery of the Bivalvia-Qiyangia Assemblage in the Northern Qiangtang Area and Its Stratigraphic Significances LI Qian, LU Gang, ZHANG Nen, XU Hua, TANG Zhaoxia and WEI Xiaoyan (Guangxi Institute of Regional Geologi...Discovery of the Bivalvia-Qiyangia Assemblage in the Northern Qiangtang Area and Its Stratigraphic Significances LI Qian, LU Gang, ZHANG Nen, XU Hua, TANG Zhaoxia and WEI Xiaoyan (Guangxi Institute of Regional Geological Survey, Guilin, Guangxi 541003; No. 271 Team of Geological Survey, Guangxi Bureau of Geological Exploration, Guilin, Guangxi 541100) A set of Early Jurassic freshwater Bivalvia assemblage, Qiyangia assemblage, was discovered recently from the "Qoima Co Formation" in the Duxue Mountain area in the Qiangtang Basin, northern Tibet. The "Qoima Co Formation" overlies展开更多
Sub-regional Descriptions of Global GPS Vector Field and Its Geodynamic Significance MA Zongjin, ZHANG Jin, REN Jinwei and LI Zhi (Institute of Geology, China Earthquake Administration, Beijing 100029; Institute of Ea...Sub-regional Descriptions of Global GPS Vector Field and Its Geodynamic Significance MA Zongjin, ZHANG Jin, REN Jinwei and LI Zhi (Institute of Geology, China Earthquake Administration, Beijing 100029; Institute of Earthquake Science, China Earthquake Administration, Beijing 100036; Academy of Equipment Command & Technology, Beijing 101416) Based on the global vector field of plate movement shown by GPS stations chosen averagely, some characteristics of present plate tectonics can be distinguished as follows: (1) from the northern展开更多
文摘Discovery of the Bivalvia-Qiyangia Assemblage in the Northern Qiangtang Area and Its Stratigraphic Significances LI Qian, LU Gang, ZHANG Nen, XU Hua, TANG Zhaoxia and WEI Xiaoyan (Guangxi Institute of Regional Geological Survey, Guilin, Guangxi 541003; No. 271 Team of Geological Survey, Guangxi Bureau of Geological Exploration, Guilin, Guangxi 541100) A set of Early Jurassic freshwater Bivalvia assemblage, Qiyangia assemblage, was discovered recently from the "Qoima Co Formation" in the Duxue Mountain area in the Qiangtang Basin, northern Tibet. The "Qoima Co Formation" overlies
文摘Sub-regional Descriptions of Global GPS Vector Field and Its Geodynamic Significance MA Zongjin, ZHANG Jin, REN Jinwei and LI Zhi (Institute of Geology, China Earthquake Administration, Beijing 100029; Institute of Earthquake Science, China Earthquake Administration, Beijing 100036; Academy of Equipment Command & Technology, Beijing 101416) Based on the global vector field of plate movement shown by GPS stations chosen averagely, some characteristics of present plate tectonics can be distinguished as follows: (1) from the northern
