- 责任者：Li Yuejun (Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China) ; Sun Longde
- 刊名：Chinese Journal of Geology
- 出版年：2013
- 卷期：48(1)
- 关键词：张扭性构造 ; tenso-shear structure ; 塔里木盆地 ; Tarim Basin
- 页码：p.109-123
- 图表：illus., 1 table, 13 refs.
- 分类号：0300
- issnNo：ISSN0563-5020
- isbnNo：CN11-1937/P
Late Cenozoic normal faults are developed around Awati Sag,NW Tarim Basin. In which, the Quaternary normal fault activities is the first discovery of structural study in Tarim Basin. The normal faults are controlled with the pre-existed basement faults. Horizontally, they are arranged in right-step en echelon along Shajingzi, Aqia and Tumuxiuke Fault zones, constitute sinistral tenso-shear fault zones. In profile,the normal fault zones cut thxough Upper Paleozoic to Middle Quaternary, forming small horst-graben structures or step cross sections. They not clear in Lower Paleozoic. On the basis of careful seismic interpretation and the growth-indices of the normal faults, the tenso-shear normal fault zones were formed at the end of Neogene, activing in Early-Middle Quaternary and ceased in Late Quaternary. The genesis of the tenso- shear fault zones is the clockwise rotation of Awati block related to its surrounding geologic bodies.