| 扬子地台西北界线之我见 |
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| 引用本文： | 丁燕云,李占奎.扬子地台西北界线之我见[J].物探与化探,2007,31(6):510-513. |
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| 作者姓名： | 丁燕云 李占奎 |
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| 作者单位： | 中国国土资源航空物探遥感中心,北京,100083 |
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| 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.
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| 关 键 词： | 重磁场特征 基底性质 构造区 界线 |
| 文章编号： | 1000-8918(2007)06-0510-04 |
| 收稿时间： | 2007-09-01 |
ON THE NORTHWEST BOUNDARY OF THE YANGTZE PLATFORM |
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| DING Yan-yun,LI Zhan-kui.ON THE NORTHWEST BOUNDARY OF THE YANGTZE PLATFORM[J].Geophysical and Geochemical Exploration,2007,31(6):510-513. |
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| Authors: | DING Yan-yun LI Zhan-kui |
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| Institution: | China Aero Geophysical Survey and Remote Sensing Center for Land and Resources, Beijing 100083, China |
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| Abstract: | 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. |
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| Keywords: | gravity-magnetic field basement boundary of tectonic units Yangtze platform |
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