现代地质Issue(2)：314-320,7.
鄂尔多斯盆地南部上三叠统延长组软沉积变形特征及构造意义
Characteristics and Tectonic Sense of Soft Sedimentary Structures in Yanchang Formation,South Ordos Basin
摘要
Abstract
Soft sedimentary structures(SSDs)distribute widely in South Ordos Basin.The main types of SSDs are fault-graded faults structure,liquefied sandstone vein structure,pillow structure,ball and pillow structure, vibrational liquefaction curled deformation structure,torn mudstone fragments,which we can observe in out-crops and wells of Yanchang Formation in South Ordos Basin.SSDs distribute from Chang 9 to Chang 1 vertical-ly,and Chang 7 is the most favourable layer of SSDs in Yanchang Formation,which coincides with the strength change of tectonic activity.SSDs can be observed in the whole south of basin,but southwest contributes more. By comparison,seismic is the main trigger of these SSDs,and part of them is built up by mass flow caused by seismic and volcanic eruption.关键词
软沉积变形构造/液化/地震/鄂尔多斯盆地南部/延长组Key words
soft sedimentary structure/liquefaction/seismic/South Ordos Basin/Yanchang Formation分类
能源科技引用本文复制引用
杜芳鹏,刘池洋,王建强,熊林芳,李健..鄂尔多斯盆地南部上三叠统延长组软沉积变形特征及构造意义[J].现代地质,2014,(2):314-320,7.基金项目
西北大学大陆动力学国家重点实验室科技部专项（BJ081334）；国家自然科学基金项目（41102067，90814005）。 （）
