Discovery of the Geophysical Field Boundary along Wudu-Wenxian-Lixian Line and Its Significance
详细信息
- 责任者：Ding Yanyun (China Aero Geophysical Survey and Remote Sensing Center for Land and Resources ; Beijing 100083 ; China) ; Li Zhankui
- 刊名：Geology in China
- 出版年：2009
- 卷期：36(6)
- 关键词：断裂带 ; fracture zones ; 重力勘探 ; gravity exploration ; 磁法勘探 ; magnetic prospecting ; 龙门山断裂带 ; Longmenshan Fault Zone
- 页码：p.1251-1256
- 图表：7 illus., 5 refs.
- 分类号：0300
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
摘要
According to the gravity and magnetic map, a fault named Wudu-Wenxian extends along the Wudu-Wenxian-Lixian line, with obviously different gravity and magnetic features on both sides. It has greater size and tectogenetic intensity than Longmeshan fault, and is probably the boundary between Yangtze platform and Songpan-Ganzi orogen. Dextral strike slipping generated the southwestward movement of the southeast block and the northeastward movement of the northwest block, with characteristics of regional strike slip and compression. Therefore, the Wudu-Wenxian fault not only serves as a regionalized strike-slip fault but also has the same fault significance as the Altun fault.