| 苏鲁豫皖地区地磁异常场时空近期动态演化特征 |
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| 引用本文： | 张毅,陈宇卫,顾春雷,王雷,徐如刚.苏鲁豫皖地区地磁异常场时空近期动态演化特征[J].华南地震,2009,29(2):42-48. |
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| 作者姓名： | 张毅 陈宇卫 顾春雷 王雷 徐如刚 |
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| 作者单位： | 安徽省地震局,安徽,合肥,230031 |
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| 基金项目： | 地震行业科研专项基金 |
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| 摘 要： | 以苏鲁豫皖地区2005年至2008年四期地磁矢量场的观测数据为基础，分别建立了该区域的F、D、I三个独立分量四期的地磁异常场模型。通过对郯庐断裂带中段地磁异常场时空动态演化特征分析，发现该区域的F、D、I分量地磁异常场形态在2005年11月九江地震前后出现了较大程度的变化，甚至出现了地磁正负异常场的反转，从2007年春季至2008年春季，该区域地磁异常场分布形态基本保持稳定。
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| 关 键 词： | 郯庐断裂 地磁场异常场 动态演化 |
Recent Time-Space Dynamic Evolution Characteristics of Geomagnetic Field in Jiangsu-Shandong-Henan-Anhui Region |
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| ZHANG Yi,CHEN Yuwei,GU Chunlei,WANG Lei,XU Rugang.Recent Time-Space Dynamic Evolution Characteristics of Geomagnetic Field in Jiangsu-Shandong-Henan-Anhui Region[J].South China Journal of Seismology,2009,29(2):42-48. |
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| Authors: | ZHANG Yi CHEN Yuwei GU Chunlei WANG Lei XU Rugang |
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| Institution: | Earthquake Administration of Anhui Province;Hefei 230031;China |
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| Abstract: | Based on four-phase geomagnetic vector data from 2005 to 2008 in Jiangsu-Shandong-Henan-Anhui region,the F,D,I component geomagnetic anomalous fields at the four phases are established.By analyzing the time-space dynamic evolution characteristics of geomagnetic field of the middle segment of Tanlu fault zone,it is found that the F,D,I component geomagnetic anomalous fields in this region have greatly changed and even reversed before and after Jiangxi earthquake in November 2005,but from Spring of 2007 to Sp... |
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| Keywords: | Tanlu fault zone Geomagnetic anomalous field Dynamic evolution |
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