| 台湾及其邻海的重力特征与构造、地震的关系 |
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| 引用本文： | 张赤军,方剑.台湾及其邻海的重力特征与构造、地震的关系[J].台湾海峡,2001,20(1):101-109. |
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| 作者姓名： | 张赤军 方剑 |
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| 作者单位： | 中国科学院测量与地球物理研究所, |
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| 基金项目： | 国家自然科学基金资助项目(49874016) |
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| 摘 要： | 分析认为，在台湾及其邻海的重力场中，具有短波长特征的空间重力异常受地形与海深所制约．玉山的200×10
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| 关 键 词： | 台湾 重力 地壳厚度 地震活动 |
| 文章编号： | 1000-8160（2001）01-0101-09 |
| 修稿时间： | 2000年1月3日 |
Relation between gravity
field feature and tectonics and earthquakes in Taiwan and its adjacent regions |
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| ZHANG Chi-Jun,FANG Jian.Relation between gravity
field feature and tectonics and earthquakes in Taiwan and its adjacent regions[J].Journal of Oceanography In Taiwan Strait,2001,20(1):101-109. |
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| Authors: | ZHANG Chi-Jun FANG Jian |
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| Abstract: | Short wave gravity anomaly is correlated to sea floor topography in gravity field of Taiwan and its adjacent regions. Gravity value 200×10-5m／s2 at Yushan and -160×10-5m／s2 at Ryukyu Trench is respectively maximum and minimum gravity values in this area. Bouguer gravity anomaly reflects not only Moho interface undulation, but also faults distribution. In the inflexion of gradient belt of Bouguer gravity anomaly, earthquake are easily occurring. Middle-long wave Geoid is the best data to invert crustal thickness. We calculated crustal thickness by using Geoid data, maximum value is 38km; minimum value is 12km in Taiwan and its adjacent regions. |
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| Keywords: | Taiwan gravity crustal thickness earthquake activity |
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