line-level: 2" class=MsoNormal>Cenozoic Evolution of Dominating Faults in
- 责任者：Li Shiyuan (Center of Basin Resources and Environment ; Institute of Tibetan Plateau Research ; Chinese Academy of Sciences ; Beijing 100085 ; China) ; Wang Yadong
- 刊名：Chinese Journal of Geology
- 出版年：2010
- 卷期：45(3)
- 关键词：构造演化 ; structural evolution ; 柴达木盆地 ; Qaidam Basin
- 页码：p.666-680
- 图表：7 illus., 47 refs.
- 分类号：0300
- issnNo：ISSN0563-5020
- isbnNo：CN11-1937/P
Based on interpretation of seismic data in western Qaidam Basin，the active models，active time and spatial growth of dominating Cenozoic faults are explored in this paper. The results show that the evolution of faults can be divided into two relatively fast phases： 1) during the deposit time between the Lulehe Fm. and the Upper Xia Ganchaigou Fm. (～54～31 Ma); 2) since the deposit time of the Xia Youshashan Fm. (～22 Ma～present). The latter phase was more robust，especially since ～8 Ma (since the deposit time of the Shizigou Fm.)，the NWW faults begin to active significantly which indicates the most drastic tectonic collision process. Quantitative analysis of the proxy of the growth faults also correspond with the two phases. Together these indicate that the collision between Indian and Eurasia continents has a two-stages feature after ～55 Ma, they will provide some new convincible evidence for the multi-stages uplift of the NE Tibetan Plateau.