野外构造研究表明，贺兰山南部北西向构造的形成与青铜峡固原断裂活动有密切的关系，是该断裂由走滑运动向挤压运动转换时的派生构造；
Based on the study of the field , we find that it is the movement of the Qingtongxia-Guyuan fault that led to the formation of these northwest trending structures .
贺兰部