一、区域构造环境青藏高原北东缘包括柴达木盆地以北,阿尔金山以东,龙首山以南,牛首山、罗山以西广大区域,其周边为区域性大断裂所围限,祁连山是这一区域内的主体构造单元。与这一地区相邻的东侧、西侧和北侧都是早已固结并长期处于相对稳定的陆块(华北地块、新疆地块),在该区的构造演化过程中在外围起限制作用;本区西南是亚洲乃至全球新构造运动最为强烈的青藏块体。新生代以来印度板块向N或NE方向强大的推挤作用,是影 I. Regional tectonic setting The northern margin of the Qinghai-Tibet Plateau includes the north of the Qaidam Basin, east of the Altun Mountains, south of the Longsheshan, Niushou Mountain and the west of Luoshan. The surrounding area is surrounded by large-scale regional faults. The Qilian Mountains Is the main structural unit in this area. The eastern, western and northern sides adjacent to this area are both long-term and relatively stable continental blocks (North China block and Xinjiang block), which are restricted in the periphery during the tectonic evolution of the area The southwestern part of this area is the Qinghai-Tibet block with the strongest Neotectonic movement in Asia and even in the world. India plate since the Cenozoic thrust to the N or NE direction is a shadow