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| 用接收函数方法研究上海地震台阵下地壳结构 | |
| 引用本文： | 王俊菲,朱元清,王小平.用接收函数方法研究上海地震台阵下地壳结构[J].地震地磁观测与研究,2010,31(2):50-55. |
| 作者姓名： | 王俊菲 朱元清 王小平 |
| 作者单位： | 1. 中国上海,200092,同济大学海洋与地球科学学院 2. 中国上海,200092,同济大学海洋与地球科学学院;中国上海,200062,上海市地震局 3. 中国上海,200062,上海市地震局 |
| 基金项目： | 科技部科技基础性工作专项项目 |
| 摘 要： | 利用上海地震台阵16个台站记录的远震资料,采用接收函数线性反演方法,对台阵下的地壳速度结构进行研究,获得了研究区域内地壳厚度和地壳速度的分布特征。研究结果表明,研究区域Moho面深度约为33±2 km,Moho面深度基本不变,地幔顶部S波速度约4.4 km/s,地壳内没有发现明显的低速层。 |
| 关 键 词： | 接收函数 地震台阵 地壳速度结构 |
Crustal structure in the Shanghai region determined by modeling receiver function |
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| Wang Junfei,Zhu Yuanqing,Wang Xiaoping.Crustal structure in the Shanghai region determined by modeling receiver function[J].Seismological and Geomagnetic Observation and Research,2010,31(2):50-55. | |
| Authors: | Wang Junfei Zhu Yuanqing Wang Xiaoping |
| Institution: | 1. School of Ocean ＆ Earth Science, Tongji University, Shanghai 200092, China 2. Earthquake Administration of Shanghai Municipality, Shanghai 200062, China) |
| Abstract: | We selected broadband teleseismic waveform data recorded by the Shanghai seismic array to study the crustal thickness and structure in Shanghai region by modeling the teleseismic P wave receiver function. The results show that beneath the studied area, the depth of Moho discontinuity is about 33 ±2 km, without obvious variation. S wave velocity gets up to 4.4 km/s at the depth of Moho discontinuity. There is no obviously low velocity layer in the crust. |
| Keywords: | receiver function seismic array crustal velocity structure |
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