| 3D P wave velocity structures of crust and their relationship with earthquakes in the Shandong area | |
Su Dao-Lei1,2,3; Fan Jian-Ke1; Wu Shi-Guo1,4; Chen Chuan-Xu1,2 ; Dong Xiao-Na5; Chen Shi-Jun5
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| 2016-04-01 | |
| 发表期刊 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
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| 卷号 | 59期号:4页码:1335-1349 |
| 文章类型 | Article |
| 摘要 | A high-resolution 3D P-wave velocity structure of the crust in Shandong area was imaged by inverting 13781 arrival times from 1369 local events recorded by Shandong seismic network from 1975 to January 2014. Tomographic results reveal that the P-wave velocity structure of the crust of Shandong area has significant heterougeneities. The blocks on both sides of the Tanlu fault zone show different velocity structures, implying that the Tanlu fault may be a boundary fault. Our results also show that large-scale low velocity anomalies related to the Luxi large-scale detachment structure of Eocene exists below 20 km depth in the Luxi area, which was possibly associated with the westwards subduction of the Pacific plate that made the hot mantle material ascend along the Tanlu fault zone. The distribution of major earthquakes, most of which are of strike-slip type, spatially coincides with the transition zone between the low-velocity zone and high velocity zone, accompanied by the deep fault zone. These low-velocity anomalies may be related to the enriched fluid, which may weaken the lithospheric strength and make the tectonic stresses easier to accumulate there. The boundaries between the low-velocity and high-velocity anomalies may act as an elastic boundary along which tectonic stresses easily accumulate and transfer to the shallow depth of the crust and generate earthquakes. |
| 关键词 | Shandong Area Seismic Tomography 3d Crustal Structure Seismicity |
| DOI | 10.6038/cjg20160415 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000373864400015 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 版本 | 出版稿 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/126268 |
| 专题 | 海洋地质与环境重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Earthquake Adm Jinan City, Jinan 250001, Peoples R China 4.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Hainan Sanya 582000, Peoples R China 5.Earthquake Adm Shandong Prov, Jinan 250014, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Su Dao-Lei,Fan Jian-Ke,Wu Shi-Guo,et al. 3D P wave velocity structures of crust and their relationship with earthquakes in the Shandong area[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2016,59(4):1335-1349. |
| APA | Su Dao-Lei,Fan Jian-Ke,Wu Shi-Guo,Chen Chuan-Xu,Dong Xiao-Na,&Chen Shi-Jun.(2016).3D P wave velocity structures of crust and their relationship with earthquakes in the Shandong area.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,59(4),1335-1349. |
| MLA | Su Dao-Lei,et al."3D P wave velocity structures of crust and their relationship with earthquakes in the Shandong area".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 59.4(2016):1335-1349. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 3D P wave velocity s（6387KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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