甘肃省三危山断裂带东段——片石山一带的韧性变形特征

Ductile shear deformation characteristics of Pianshishan in Yumenzhen area, in east section of the Sanweishan fault, Gansu

摘要: 三危山断裂隶属阿尔金断裂体系,处于华北板块与塔里木板块的结合部位.在玉门镇幅1/250000的区域地质调查中,发现三危山断裂带东段—甘肃省玉门镇片石山一带存在着早古生代和晚古生代两期不同性质、不同层次、不同构造组合样式的韧性变形.

Abstract: Sanweishan fault is one of the Altun tectonic system which lies in the joint of the Huabei slab and Tarim slab.In the 1:250000 regional geological mapping of Yumenzhen,the two different characteristics, depth and different styles assemblage ductile deformation was found in Pianshishan in Yumenzhen area in Late Paleozoic and Mesozoic.