论文部分内容阅读
阿尔金断裂带中段发育一种特殊的长条状盆地地貌，其长宽比略大于５０．盆地两侧的长边界由直线型具走滑分量的正断裂控制，盆地内分布新生代地层，阿尔金主断裂通过盆地，并在盆地内形成一系列走滑地貌．以盆地为中心两侧为反向的逆冲构造，使盆地两侧的由古老变质岩组成的地质体垂向挤出，构成在盆地两侧且平行于盆地的长条形山体（山脉），这种特殊地貌称之为走滑断陷盆地．该巨型长条状走滑断陷盆地于上新世开始形成，晚更新世时期其地貌特征基本形成，它是阿尔金断裂带走滑变形过程中形成的特殊类型的地貌，是转换挤压作用和隆升作用的共同结果．
A special strip-shaped basin developed in the middle section of the Altyn Tagh fault has an aspect ratio slightly greater than 50. The long boundaries on both sides of the basin are controlled by normal faults with linear strike-slip components. Cenozoic strata are distributed within the basin, and the main fault of the Altyn Tagh fault passes through the basin and forms a series of strike-slip landforms in the basin. On both sides of the basin are reverse thrust structures on both sides, so that the geologic bodies composed of ancient metamorphic rocks on both sides of the basin are vertically extruded to form long mountain bodies (mountains) on both sides of the basin and parallel to the basin. This special landscape is called a strike-slip faulted basin. The giant long-stripe strike-slip fault basin began to form during the Pliocene. During the late Pleistocene, the topographic features were basically formed. It is a special type of landform formed during the strike-slip deformation of the Altyn Tagh fault zone. And the common result of uplift.