Discussion of the Tectonic Boundary between North Qilian Orogenic Belt and Helan Cold Rift

• 责任者：Huang Xifeng (Key Laboratory of Western Mineral Resources and Geological Engineering ; Ministry of Education ; Chang’an University ; Xi’an 710054 ; China) ; Qian Zhuangzhi
• 刊名：Journal of Guilin University of Technology
• 出版年：2010
• 卷期：30(2)
• 关键词：裂谷 ; rifts ; 板块边界 ; plate boundaries ; 祁连山 ; Qilian Mountains ; 贺兰山 ; Helan Mountains
• 页码：p.195-201
• 图表：4 illus., 32 refs.
• 分类号：0300
• issnNo：ISSN1674-9057
• isbnNo：CN45-1375/N

 Helan cold rift valley is located between north Qilian orogenic belt and southwest margin of North China plate. Based on continental shelf, continental slope transition zones and basal structure of superposed basin and its bordering fault zone and refers to geophysical information in the area, it is determined that the boundary of Helan cold rift between North Qilian orogenic belt and North China Plate is located in Qingtongxia (Niushou Mountain)-Guyuan fault belt. In the long tectonic evolution, it is characteristic of multi-directionality, multistage and multiplicity.