地质科学2017，Vol.52Issue(4)：1068-1078,11.DOI:10.12017/dzkx.2017.068
准噶尔盆地西北缘横断层特征及形成机制探讨
Characteristics and the forming mechanisms of transverse faults in northwestern margin of Junggar Basin
摘要
Abstract
Northwestern margin of Junggar Basin is the richest region of oil and gas in the whole basin.There are several NW tending transverse faults being perpendicular or oblique to the NE directed Ke-Wu fault.These transverse faults have serious significance for tectonic and hydrocarbon accumulation.By analysing and interpreting the data of topographic image,regional Bouguer gravity anomalies and seismic data,the transverse faults are identified and their characteristics are also analysed.Finally according to the results of the structure modeling experiments,the formation of the transverse faults are investigated.Researches show that firstly,there indeed exists a series of NW-toward transverse faults of different size,distributed in between approximately equal distance;secondly,the structure modeling experiments shows that these transverse faults may be from the X-type conjugate shear faults formed under the tectonic condition of oblique compression or the accommodating faults caused by the difference activities of the main thrust fault.These transverse faults are the associate structure of the KeWu thrust nappe belt,with the properties of strike slip.关键词
横断层/形成机制/构造模拟实验/准噶尔盆地西北缘Key words
Transverse faults/Formation mechanism/Structure modeling experiments/Northwestern margin of Junggar Basin分类
天文与地球科学引用本文复制引用
张晓杰,王伟锋,卿艳彬,胡瑜,沈跃..准噶尔盆地西北缘横断层特征及形成机制探讨[J].地质科学,2017,52(4):1068-1078,11.基金项目
国家自然科学基金项目(编号:41340008)资助. （编号:41340008）
