Thermal rheological structure analysis of crustand upper mantle in Sulawesi based on joint tomography of surface wave and gravity data
文献类型：期刊论文
| 作者 | Jiang ChengHao1; Zhang Jian1; Li ZhiWei3; Hao TianYao1,2,4; Dong Miao4; Fang Gui1 |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2023-07-01 |
| 卷号 | 66期号:7页码:2961-2972 |
| ISSN号 | 0001-5733 |
| 关键词 | Sulawesi Joint tomography Thermal rheological boundary layer Ocean continent coupling Rollback |
| DOI | 10.6038/cjg2022Q0364 |
| 英文摘要 | Sulawesi is an important area to study geodynamic problems of ocean-continent coupling and subduction rollback. In this paper, according to the surface wave dispersion data extracted from seismic surface wave and ambient noise from 24 broadband seismic stations and the satellite gravity anomaly data, we used the joint tomographic inversion to obtain the three-dimensional VS velocity model up to 240 km around Sulawesi. Based on this velocity model, we calculated the thickness and viscosity variation characteristics of the thermal rheological boundary layer at the bottom of the lithosphere by the thermal rheological method. The results suggest that: (1) the rheological boundary layer of the lithosphere in Sulawesi island is thick in the southeast and thin in the northwest, resulting in the maximum northward velocity in the east of the East Branch of Sulawesi island and the second in the west of the North Branch of Sulawesi island during the continental crust fragment displacement and reorganization in the Cenozoic; (2) The low V-S anomalous velocity zone corresponding to the overlying crust of the subduction retreating plate of the North Sulawesi trench may be a fluid-rich weak plate. And the Sulawesi subduction is thought to be a sluggish subduction with discontinuous retreating. |
| WOS关键词 | METAMORPHIC COMPLEX ; AMBIENT NOISE ; NW SULAWESI ; EVOLUTION ; LITHOSPHERE ; INDONESIA ; CONSTRAINTS ; HISTORY ; BENEATH ; DIFFERENCE |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | SCIENCE PRESS |
| WOS记录号 | WOS:001028658500019 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/111392]  |
| 专题 | 地质与地球物理研究所_中国科学院油气资源研究重点实验室 |
| 通讯作者 | Zhang Jian |
| 作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China 3.Beijing Inst Spacecraft Environm Engn, Beijing 100094, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jiang ChengHao,Zhang Jian,Li ZhiWei,et al. Thermal rheological structure analysis of crustand upper mantle in Sulawesi based on joint tomography of surface wave and gravity data[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2023,66(7):2961-2972. |
| APA | Jiang ChengHao,Zhang Jian,Li ZhiWei,Hao TianYao,Dong Miao,&Fang Gui.(2023).Thermal rheological structure analysis of crustand upper mantle in Sulawesi based on joint tomography of surface wave and gravity data.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,66(7),2961-2972. |
| MLA | Jiang ChengHao,et al."Thermal rheological structure analysis of crustand upper mantle in Sulawesi based on joint tomography of surface wave and gravity data".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 66.7(2023):2961-2972. |
入库方式： OAI收割
来源：地质与地球物理研究所
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