| 北京地区地壳Q值随深度的分布特征 |
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| 引用本文： | 付昌洪,朱传镇.北京地区地壳Q值随深度的分布特征[J].西北地震学报,1982,4(4):63-68. |
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| 作者姓名： | 付昌洪 朱传镇 |
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| 作者单位： | 国家地震局地球物理研究所
(付昌洪)，国家地震局地球物理研究所(朱传镇) |
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| 摘 要： | 地震波在介质中的衰减,是介质的重要特性之一,而Q值则是衡量衰减特性的主要物理参数,称之谓介质的品质因子。根据文献1]提出的方法,用北京台网记到的近震直达P波资料,测定北京地区的大量Q值表明:Q值与P、S波到时差(t_s—t_p)有关;(t_s—t_P)大,测得的Q值也大;(t_s—t_P)小,测得的Q值也小。这种现象在朱传镇、李兴才
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THE DISTRIBUTION CHARACTERISTICS OF Q VALUE WITH DEPTH IN THE CRUST IN BEIJING AREA |
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| Fu Changhong and Zhu Chuanzhen.THE DISTRIBUTION CHARACTERISTICS OF Q VALUE WITH DEPTH IN THE CRUST IN BEIJING AREA[J].Northwestern Seismological Journal,1982,4(4):63-68. |
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| Authors: | Fu Changhong and Zhu Chuanzhen |
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| Institution: | Institute of Geophysics, SSB and Institute of Geophysics, SSB |
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| Abstract: | In this paper,the method of calculating Q value with depth in the cr-ust by means of data of near earthquakes is described.It is found that the relationship Q (z)=26.27z-14.4(z>11Km) may be adopted in Beijing and its adjacent region.The results obtained also show that Q value is 300-400 in the depth from 11-15Km which is the average focal depth in Beijing area,and Q-1000 approaching to the bottom of the crust. |
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