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| 河北邯郸-邢台地区波速比和泊松比分布特征研究 | |
| 引用本文： | 张小涛,韩丽萍,张新东,张双凤,畅国平,尹小兵.河北邯郸-邢台地区波速比和泊松比分布特征研究[J].西北地震学报,2012,34(1):84-87. |
| 作者姓名： | 张小涛 韩丽萍 张新东 张双凤 畅国平 尹小兵 |
| 作者单位： | 1. 吉林大学,吉林长春130026;河北省地震局邯郸中心台,河北邯郸056001 2. 河北省地震局邯郸中心台,河北邯郸,056001 3. 河北省地震局红山地震台,河北隆尧,055350 |
| 摘 要： | 根据多台和达法,利用邯郸—邢台地区9个数字地震台的观测数据研究了该区波速比和泊松比分布特征.结果显示:(1)9个小区域波速比值在1.696～1.737之间,相关系数在0.988 3～0.999 1之间,研究区平均波速比值为1.719,平均泊松比值为0.244,所得泊松比值与研究区内地壳介质以花岗岩为主一致.(2)研究区内波速比和泊松比变化比较复杂,反映了区内上地壳介质性质的不同乖地质构造的复杂性. |
| 关 键 词： | 波速比 泊松比 介质性质 邯郸—邢台地区 |
Distribution Characteristics of Wave Velocity Ratio and Poisson's Ratio in Handan-Xingtai Areas, Hebei Province |
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| ZHANG Xiao-tao,HAN Li-ping,ZHANG Xin-dong,ZHANG Shuang-feng,CHANG Guo-ping,YIN Xiao-bing.Distribution Characteristics of Wave Velocity Ratio and Poisson's Ratio in Handan-Xingtai Areas, Hebei Province[J].Northwestern Seismological Journal,2012,34(1):84-87. | |
| Authors: | ZHANG Xiao-tao HAN Li-ping ZHANG Xin-dong ZHANG Shuang-feng CHANG Guo-ping YIN Xiao-bing |
| Institution: | 1.Jilin University,Changchun 130026,China;2.Central Seismostation of Handan,Hebei Handan 056001,China; 3.Hongshan Seismic Station,Hebei Longyao 055350,China) |
| Abstract: | According to multi-station Wadati diagram method,using the data from 9 digital seismic stations in Handan-Xingtai region of Hebei province,the distribution characteristics of wave velocity ratio and Poisson’s ratio values in this region are studied.The results show:(1) In 9 sub-regions,velocity ratio values are between 1.696~1.737,the correlation coefficients are among 0.988 3~0.999 1,the average velocity ratio value of the study area is 1.719,the average Poisson’s ratio is 0.244.The Poisson’s ratio result consistent with the crust medium which mainly consist of granite in the study area.(2) The wave velocity ratio values and d Poisson’s ratio values vary in complex image in the study area.It objectively reflect the different medium properties of the upper crust and the complicated nature of geological structure under the study area. |
| Keywords: | Wave velocity ratio Poisson’s ratio Medium character Handan-Xingtai areas |
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