%0 Journal Article %T Sinistral shear and extension of the northern section of Lijiang Basin in northwest Yunnan in Quaternary %A Zhujun Han %A Hongfa Xiang %A Shunmin Guo %A
HANZhujun %A XIANGHongfa %A GUOShunmin %J 科学通报(英文版) %D 2005 %I %X The northern section of Lijiang Basin (NSLB) has the features of a zigzag fault, a kind of "tracing extension" in the shape. Fault slip is characterized by both extension and sinistral shear. Average sinistral-shear and exten-sional displacements are respectively 1950 and 1730 m. This kind of movement began in middle Pleistocene, which is about 800 ka ago. Average sinistral and extensional slip-rates can be acquired, which are 2.44 and 2.16 mm/a. Geological evidence at different segments of the NSLB demonstrates results of geomorphic analysis, and is consistent with our knowledge about the zigzag fault. Realization of sinistral shear and extension of the NSLB provides direct evidence for the model of clockwise rotation of northwest Sichuan active block and the understanding of dynamic features of the Red River fault zone. %K northern section of Lijiang Basin %K zigzag fault %K Red River fault zone %K clockwise rotation
云南 %K 丽江 %K 曲折断层 %K 红河 %K 顺时针旋转 %K 断层带 %K 动力学 %U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=7EB931BD21C0C04CDB25CED75CAF7CE9&yid=2DD7160C83D0ACED&vid=771152D1ADC1C0EB&iid=94C357A881DFC066&sid=30F3EEEA29E34EE7&eid=3389C664025A98F9&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=0&reference_num=24