| The velocity structure of crust and uppermantle in the Wudalianchi volcano area in—ferred from the receiver function |
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| 引用本文： | 贺传松,王椿镛,吴建平.The velocity structure of crust and uppermantle in the Wudalianchi volcano area in—ferred from the receiver function[J].地震学报(英文版),2003,16(2):140-147. |
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| 作者姓名： | 贺传松 王椿镛 吴建平 |
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| 作者单位： | InstituteofGeophysics,ChinaSeismologicalBureau,Beijing100081,China |
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| 基金项目： | Chinese Joint Seismologicaal Science Founation (101089). |
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| 摘 要： | The Wudalianchi volcano is a modern volcano erupted since the Holocene.Its frequent occurrence of the small earthquake is considered to be indicator of active dormancy volcano.The S wave velocity structure is inferred from the receiver function for the crust and upper mantle of the Wudalianchi volcano area.The results show that the low velocity structure of Swave is widely distributed undemeath the volcano area and part of the low-velocity-zone located at shallow depth in the Wudalianchi volcano area.The low velocity structure is related to the seismicity.The Moho interface is not clear undemeath the volcano area,which may be regard to be an nec-essary condition for the lava upwelling.Therefore,we infer that the Wudalianchi volcano has the deep structural condition for the volcano activity and may be alive again.
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| 关 键 词： | 地壳速度结构 上地幔 五大连池火山 微地震 全新世 火山活动 S波速度结构 |
| 收稿时间： | 10 April 2002 |
| 修稿时间： | 23 December 2002 |
The velocity structure of crust and upper mantle in the Wudalianchi volcano area inferred from the receiver function |
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| He Chuan-song , Wang Chun-young and Wu Jian-ping.The velocity structure of crust and upper mantle in the Wudalianchi volcano area inferred from the receiver function[J].Acta Seismologica Sinica(English Edition),2003,16(2):140-147. |
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| Authors: | He Chuan-song Wang Chun-young and Wu Jian-ping |
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| Institution: | Institute of Geophysics, China Seismological Bureau, Beijing 100081,China |
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| Abstract: | The Wudalianchi volcano is a modern volcano erupted since the Holocene. Its frequent occurrence of the small earthquake is considered to be indicator of active dormancy volcano. The S wave velocity structure is inferred from the receiver function for the crust and upper mantle of the Wudalianchi volcano area. The results show that the low velocity structure of S wave is widely distributed underneath the volcano area and part of the low-velocity-zone located at shallow depth in the Wudalianchi volcano area. The low velocity structure is related to the seismicity. The Moho interface is not clear underneath the volcano area, which may be regard to be an nec-essary condition for the lava upwelling. Therefore, we infer that the Wudalianchi volcano has the deep structural condition for the volcano activity and may be alive again. |
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| Keywords: | receiver functions volcano areas low velocity structure |
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