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地质科学  2007, Vol. Issue (3): 496-505    DOI:
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褶皱相关断层——以库车坳陷新生界盐上构造层为例
邬光辉, 罗春树, 胡太平, 黄广建, 席勤, 李文华
中国石油天然气股份有限公司塔里木油田分公司勘探开发研究院, 新疆库尔勒, 841000
FOLD-RELATED FAULTING:AN EXAMPLE FROM THE CENOZOIC SALT-OVERLYING BEDS IN THE KUQA DEPRESSION
Wu Guanghui, Luo Chunshu, Hu Taiping, Huang Guangjian, Xi Qin, Li Wenhua
Research Institute of Exploration and Development, Tarim Oilfield Branch Company, China National Petroleum Corp., Kuqa, Xingjiang 841000
 全文: PDF (4680 KB)   HTML( )   输出: BibTeX | EndNote (RIS)      背景资料
摘要 以盐构造解析的方法,综合地震与地质资料,表明库车坳陷新生界中的盐上断层受控于褶皱作用。盐上地层首先发生褶皱变形,随着褶皱作用的加强,然后发生断裂作用,盐上构造层的变形方式为褶皱相关断层,其变形特征不同于断层相关褶皱。从断层成因机制可见:断层相关褶皱理论不适用于库车新生代坳陷盐构造发育区。库车坳陷膏盐层的发育造成盐上构造层与盐下构造层变形有差异,盐上构造层以褶皱作用为主,盐下构造层以冲断作用为主。库车坳陷盐上构造层主要为褶皱相关断层,发育张性断块、后翼突破断层、前翼突破断层及褶皱相关断层组合等构造样式,根据盐上构造层的变形特征总结了褶皱相关断层的演化。
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邬光辉
罗春树
胡太平
黄广建
席勤
李文华
关键词盐构造   褶皱相关断层   断层相关褶皱   盐上构造层变形   库车新生代坳陷     
Abstract: There were three structural layers in the Cenozoic Kuqa Depression,in ascending order,the salt-underlying beds,the salt(or gypsum) beds and the salt-overlying beds.The salt structures were well developed and resulted in the structural deformation of the salt-underlying and salt-overlying beds being obviously different.The thrusting dominated the salt-underlying beds,while in the salt-overlying beds the deformation was mainly folding.The surface geological survey and seismic profiles showed that the salt-overlying beds was folded first,then the faulting developed with the strengthen of folding action.The deformation characteristics of the salt-overlying beds might be fold-related faulting,instead of the fault-related folding which was not applicable in the salt structure-developing areas in the Kuqa Depression.The patterns of the fold-related faulting in the salt-overlying beds included the extensional block,back limb break-up fault,front limb break-up fault,and the combination of them.The mechanism and evolution of the fold-related faults was discussed according to the deformational features of the salt-overlying beds in the Kuqa Depression.
Key wordsSalt structures   Fold-related faulting   Fault-related folding   Deformation of the salt-overlying beds   The Cenozoic Kuqa Depression   
收稿日期: 2006-06-07;
基金资助:国家“十五”重点科技攻关项目(编号:2004BA616A02)的部分成果
引用本文:   
邬光辉,罗春树,胡太平等. 2007, 褶皱相关断层——以库车坳陷新生界盐上构造层为例. 地质科学, (3): 496-505.
Wu Guanghui,Luo Chunshu,Hu Taiping et al. FOLD-RELATED FAULTING:AN EXAMPLE FROM THE CENOZOIC SALT-OVERLYING BEDS IN THE KUQA DEPRESSION[J]. Chinese Journal of Geology, 2007, (3): 496-505.
 
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