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| 水库气枪震源产生的S波及其分裂 | |
| 引用本文： | 张尉,戴恒昌,李向阳,陈棋福,陈汉林,陈颙.水库气枪震源产生的S波及其分裂[J].地震地质,2009,31(1):22-33. |
| 作者姓名： | 张尉 戴恒昌 李向阳 陈棋福 陈汉林 陈颙 |
| 作者单位： | 1. 浙江大学地球科学系,杭州,310027;中国地震局地震预测研究所,北京,100036 2. 英国地质调查局,爱丁堡 EH9 3LA 3. 中国地震局地震预测研究所,北京,100036 4. 浙江大学地球科学系,杭州,310027 |
| 基金项目： | 社会公益重点项目，国家自然科学基金 |
| 摘 要： | 人工气枪震源在陆地水库可以有效激发S波,S波能量较强,与ML1.6天然地震相当。气枪可用于S波分裂研究,对布置在燕山隆起带的流动地震台的气枪信号进行了S波分裂参数分析,结果表明,快剪切波偏振优势方向为NWW和NNE向,偏振方向和断裂的性质密切相关。气枪是高度可重复性人工震源,利用气枪定点激发和定点接收有可能精确获取S波分裂参数随时间的变化规律,为地震预测探索实践提供可靠的物理途径 |
| 关 键 词： | 气枪 人工震源 S波分裂 地震应力预测 |
| 收稿时间： | 2009-01-22 |
SHEAR WAVE GENERATED BY AIRGUNS IN A RESERVOIR AND ITS SPLITTING |
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| ZHANG Wei,DAI Heng-chang,LI Xiang-yang,CHEN Qi-fu,CHEN Han-lin,CHEN Yong.SHEAR WAVE GENERATED BY AIRGUNS IN A RESERVOIR AND ITS SPLITTING[J].Seismology and Geology,2009,31(1):22-33. | |
| Authors: | ZHANG Wei DAI Heng-chang LI Xiang-yang CHEN Qi-fu CHEN Han-lin CHEN Yong |
| Abstract: | Shear wave splitting is a possible method for earthquake stress-forecasting.We applied shear wave splitting analysis to a seismic dataset generated by airguns in a reservoir.We found that the seismic data contains shear waves(Sg and SmS).The shear waves are converted at the water-solid interface from P-waves generated by the airgun source,and the energy of the converted shear wave is equivalent to the energy released by a ML 1.6 earthquake.We analyzed the data recorded by a seismic line deployed over the Ya... |
| Keywords: | airgun artificial source shear wave splitting earthquake stress-forecasting |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
