【摘要】 南天山冲断带与帕米尔冲断带位于塔里木盆地西北缘,在乌恰以北地区两大冲断系统在地表交接。本文综合利用地震剖面解释和地面地质资料分析,通过对研究区三条区域地质剖面的结构分析,取得以下一些研究成果:1.帕米尔冲断系统的前锋成为一个弧形构造带,与南天山冲断系统形成了交错叠置的关系;南天山冲断带大多形成深层次的冲断褶皱作用;2.从地理上划分了南天山和帕米尔冲断系统的构造分界线;3.从东往西,帕米尔冲断系统往北逆冲推覆作用逐渐加强,到达西部弧形构造带顶端,其与南天山冲断系统直接在地表相互交汇,塔里木盆地在此处到达西北端尽头。4.划分出两大冲断系统的次级构造单元。更多还原

【Abstract】 South Tienshan thrust belt and Pamir thrust belt are located in Tarim basin,and they join together on the surface in the north of Wuqia county.This paper uses various data such as 2D seismic profile and field geologic survey,through the study of three regional geological sections,obtains the following results:1.The pamir thrust system forword has become arc structural belt,and formed a cross superimposed relationship with South Tienshan thrust system;the South Tienshan thrust system forms deep-level fold-thrust effect;2.From the geographically,construction line has been divided between South Tienshan and Pamir thrust system;3.The thrusting nappe structure to the north of the pamir thrust system has increased from east to west,Pamir thrust system and South Tienshan thrust system intersection together on the surface when Pamir thrust system reached to the top of west arc structural belt,and it has reached the end of the northwestern Tarim basin;4.This paper divided sub-structural units of two thrust system更多还原