| 攀西构造带Q值及其横向不均匀性 |
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| 引用本文： | 孙克忠,滕吉文,金东敏,郑晔.攀西构造带Q值及其横向不均匀性[J].地球物理学报,1987,30(1):101-104. |
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| 作者姓名： | 孙克忠 滕吉文 金东敏 郑晔 |
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| 作者单位： | 中国科学院地球物理研究所, 北京 |
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| 摘 要： | 攀西地区受印度板块挤压欧亚板块的影响,地质构造复杂,断裂发育,岩浆活动强烈,地震活动频繁,深浅源地震分布不均。为研究攀西地区地震波能量的衰减情况,陈运泰等曾用天然地震研究了该地区地壳的平均Q值,在巧家和石棉地区,Q值分别为620和560,地壳中介质的品质因数Q偏低。本文则用爆炸地震观测资料,对该区的华坪-永胜地区和会理-会东地区的Q值做了计算,并讨论了Q值分布的横向不均匀性。
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| 收稿时间： | 1985-11-14 |
Q-VALUE AND ITS LATERAL VARIATIONS IN PAN-XI TECTONIC BELT |
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| SUN KE-ZHONG TENG JI-WEN JIN DONG-MIN ZHENG YE.Q-VALUE AND ITS LATERAL VARIATIONS IN PAN-XI TECTONIC BELT[J].Chinese Journal of Geophysics,1987,30(1):101-104. |
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| Authors: | SUN KE-ZHONG TENG JI-WEN JIN DONG-MIN ZHENG YE |
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| Institution: | Institute of Geophysics,Academia Sinica, Beijing |
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| Abstract: | Based on spectrul analysis (10-30 Hz) of reflections in DSS from mid-crust and Moho discontinuity,distribution of quality factor,Q,in mid and lower crust is obtained.The distribution of Q shows significant variations in lateral and vertical directions.For the upper and lower crust Q=700-900 and 150-400 near Hua-Ping in the west of Pan-Xi tectonic belt,and Q=600-900 and 500-1050 near Hui-Li in the east of the belt. |
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| Keywords: | Pan-Xi tectonic helt Seismic soiundirig Q-value Lateral inhomogeneity |
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