| 三层介质模型震相分析与地壳结构 |
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| 引用本文： | 赵鸿儒,刘宝诚.三层介质模型震相分析与地壳结构[J].地球物理学报,1982,25(3):227. |
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| 作者姓名： | 赵鸿儒 刘宝诚 |
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| 作者单位： | 北京大学地球物理系 |
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| 摘 要： | 本文用超声波方法在层状介质中进行地震模型试验研究,试图寻找一种解决某些地壳和地球内部构造问题的方法。试验中使用SYC-2型声波岩石参数测定仪,换能器是用锆钛酸铅（Pb（Ti,zr）O3）晶体制成,共有三个换能器,一个做发射探头,两个做接收探头。波形由双踪示波管显示,以利于波形对比和震相追踪。 用黄蜡、石膏和有机玻璃等板材制造一个三层介质地壳模型,来模拟辽南地区的地壳结构,并将发射探头放在上层模型的侧面,成功地模拟了有深度的震源。文中详细分析了该模型中的主要震相,并与辽南地区的天然地震进行了对比,从而为辽南地区的地壳结构提供了一个旁证,也为今后对比某地区的地壳结构提供了一种新的方法。
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| 关 键 词： | 三层介质 震相分析 地壳结构 时距曲线 地壳模型 接收点 震中距 发射探头 蜡石 黄蜡 |
| 收稿时间： | 1980-02-14 |
THE ANALYSIS OF SEISMIC PHASES IN A THREE-LAYER MODEL AND THE STRUCTURE OF THE CRUST |
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| ZHAO HONG-RU,LIU BAO-CHENG.THE ANALYSIS OF SEISMIC PHASES IN A THREE-LAYER MODEL AND THE STRUCTURE OF THE CRUST[J].Chinese Journal of Geophysics,1982,25(3):227. |
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| Authors: | ZHAO HONG-RU LIU BAO-CHENG |
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| Institution: | Department of Geophysics, Peking University, Beijing |
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| Abstract: | The method of ultrasanic waves was used in the experiments of a layered medium. The purpose is to find a method to solve some problems in the structure of the crust and interior of the earth. The SYC-2 sound wave parameter detector of rock was employed in the experiments.The three-layer model of the crust of Liao-Nan region was made of yellow wax gypsum and plexiglass. The transmitter was put on one side of the upper layer of the model to imitate a focus with depth. The main seismic phases were analyzed in detail and compared with the seismic phases of natural earthquakes in Liao-Nan region. This provides a supplementary evidence for the study of crustal structure. |
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