摘要
根据重磁资料分析,扬子地台与松潘—甘孜造山带的界线应以武都—文县断裂为界,而不是划在龙门山断裂处。由此可见,整个龙门山地区应划归扬子地台,同时认为松潘—甘孜造山带的基底性质与扬子地台的基底性质完全不同。
An analysis of the gravity and magnetic data shows that the boundary between the Yangtze platform and the Songpan-Ganzi orogenic belt should be the Songpan-Wenxian fault rather than the Longmenshan fault. This means that the whole Longmenshan area should belong to the Yangtze platform. Meanwhile, it is thought that the basement rock characteristics of the Songpan-Ganzi orogenic belt are different from those of the Yangtze platform.
出处
《物探与化探》
CAS
CSCD
2007年第6期510-513,共4页
Geophysical and Geochemical Exploration
关键词
重磁场特征
基底性质
构造区
界线
gravity-magnetic field
basement
boundary of tectonic units
Yangtze platform
