Stratigraphic Sequence and Tectonic Evolution of Passive Continental Margin of Jinshajiang Belt in Northwestern Yunnan, China

查看全文 作　　者：Feng Qinglai;Ge Mengchun;Xie Defan;Zhang Shitao;Jiang Yuansheng;Liu Yuchun(Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074) 出　　处：《Journal of Earth Science》索引1999年第18卷第3期,共5页 摘　　要：The Jinshajiang belt, located between the Zhongzan and Qamdo massifs, preserves varied sediments representing different tectonic background. Those sediments outcrop in stratigraphic slices,not in continuous stratigrapky. The stratigraphic slices of the passive continental margin are investigated by geologic mapping in Tuediug-Xiaruo, Northwestern Yunnan Province, and each of these slices is researched in age and sedimeutary environment. The stratigraphic successions of the passive continental margin are reconstructed. On the basis or new sequence, the evolutional history of the passive continental margin is divided into four stages: rift basin (D,-C,), complex continental margin basin (P1 ), residual hasin (P2-T2) and synorogenic basin (T3). 关 键 词：STRATIGRAPHIC sequence TECTONIC evolution PALEOTETHYS Jinshajiang BELT North-western YUNNAN