秋立塔克构造带盐构造形成的传力方式的构造物理模拟

库车坳陷第三系下部库姆格列木群是一套巨厚的膏 (盐 )层 ,该层系不管是在应力传递方面 ,还是在控制构造样式方面都有重要的作用 .秋立塔克构造带是库车前陆褶皱冲断带的变形前缘 ,盐上、盐下构造极不协调 ,盐上层变形强烈 ,发育滑脱断层、大型推覆构造、突发构造和三角带构造 ;盐下变形弱 ,发育小规模的冲断层 .根据构造分析推断 ,在盐上层中 ,应力从变形后缘 (克拉苏构造带 )向变形前缘秋立塔克构造带的传递有 2种方式 ,即重力滑动传递和顺层挤压传递 .构造物理模拟实验证明这种推断是合理的

Tectonophysical modeling of two kinds of stress transmission forms for forming the salt structure in Qiulitake structural zone

Kumugeliemu Group in Kuche depression is a thick gypsum (salt) layer. It plays important roles both in the stress transmission and in the control of structural styles. Qiulitake structural zone is the leading edge of Kuche depression, where the disharmonic deformations occur in the overburden of the gypsum layer and in the substratum of the gypsum layer. Extensive deformations occur in the overburden, and detachment anticlines, nappes, pup-ups and triangle zones develop. On the contrast, gentle deformations occur in the substratum and small scale thrust faults develop. Based on tectonic analyses, it is inferred that there were two kinds of stress transmission forms from the trailing edge of deformation (Kelasu structural zone) to the leading edge in the overburden. They are gravity sliding and bedding compression. Tectonophysical modeling results show that the inference is reasonable.nophysical modeling o