地质科学2013，Vol.48Issue(1)：109-123,15.DOI:10.3969/j.issn.0563-5020.2013.01.006
塔里木盆地阿瓦提凹陷周缘的晚新生代张扭性断层带
The Late Cenozoic tensor-shear fault zones around Awati Sag,NW Tarim Basin
摘要
Abstract
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 through 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.关键词
塔里木盆地西北部/阿瓦提凹陷/上新世晚期—第四纪中期/正断层/张扭性断层带/顺时针旋转Key words
NW Tarim, Awati Sag, Late Pliocene-Middle Quaternary, Normal fault, Tenso-shear fault zone,Clockwise rotation分类
天文与地球科学引用本文复制引用
李曰俊,文磊,孙龙德,杨海军,张光亚,齐英敏,桑洪,王月然,刘亚雷,张强..塔里木盆地阿瓦提凹陷周缘的晚新生代张扭性断层带[J].地质科学,2013,48(1):109-123,15.基金项目
国家科技重大专项课题"全球重点大区石油地质特征与油气分布规律"(编号:2011ZX05028-003)和塔里木油田资助. （编号:2011ZX05028-003）
