石油实验地质2016，Vol.38Issue(6)：765-771,778,8.DOI:10.11781/sysydz201606765
塔东北草湖地区差异构造变形特征与动力学过程探讨
Differential tectonic deformation and dynamic processes in Caohu area, northeastern Tarim Basin
摘要
Abstract
The Caohu area located in the northeastern Tarim Basin closed against the Kuluktag Lift. Paleozoic and Mesozoic strata were preserved very well, which recorded the tectonic evolution of the northeastern Tarim Basin. Based on the interpretation of the latest 2D seismic data and the theory of fault⁃related folding, this paper analyzed the geometrical and kinetic features of deformations in the Caohu area. Faulting deformations in the Caohu area have the characteristics of vertical stratification, S-N segmentation, and E-W zonation. Thrusts and thrust⁃strike slip faults were dominant. Tectonic deformation took place mainly in the late Hercynian, Indosinian and middle Yanshanian, and had the geometrical features of fault⁃related folds. Structural evolution history was recovered using an equilibrium pro⁃file technique. The late Caledonian to early Hercynian movements controlled the main upwarped and downwarped structural framework in the Caohu area, developing the Akekule Arch, Caohu Sag and Yuli Nose Arch. Thrust detach⁃ment faults developed during the late Hercynian, and experienced two phases of thrust⁃strike slip reform in the Indosinian and Yanshanian epochs, resulting in the present tectonic pattern of the study area.关键词
构造变形/构造演化/断层相关褶皱/平衡剖面恢复/草湖凹陷/塔里木盆地Key words
structural deformation/structural evolution/fault-related fold/equilibrium profile reconstruction/Caohu Sag/Tarim Basin分类
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田蜜,赵永强,罗宇,马玉春,周雨双,张根法..塔东北草湖地区差异构造变形特征与动力学过程探讨[J].石油实验地质,2016,38(6):765-771,778,8.基金项目
中国地质调查局重大计划项目（12120115001801－01）和中国石化西北油田分公司科研项目（KY2014－S－017－05）资助。 （）
