P-wave attenuation variations beneath the central and western Tien Shan from teleseismic waves
文献类型：期刊论文
| 作者 | Ma, Xiaolong2; Huang, Zongying1 |
| 刊名 | JOURNAL OF GEODYNAMICS
 |
| 出版日期 | 2025-03-01 |
| 卷号 | 163页码:12 |
| 关键词 | Seismic attenuation Teleseismic P -wave spectra ratio Lateral attenuation variations Central and western Tien Shan |
| ISSN号 | 0264-3707 |
| DOI | 10.1016/j.jog.2024.102063 |
| 英文摘要 | The seismic attenuation plays an important role in understanding the subsurface structure and provides complementary information on the mantle dynamic together with seismic velocity information. Here we explore the attenuation structure beneath the central and western Tien Shan using teleseismic P-wave data. Firstly, we map the spatial distribution of relative attenuation parameter using the spectral ratio technique in the frequency band between 0.1 and 1.5 Hz. Our results reveal strong lateral attenuation variations in the lithosphere and asthenosphere underneath the study area. Then we invert for the Qp values using a linear inversion approach. Two high-attenuation regions are observed beneath the middle Tien Shan and western Tarim Basin that could be associated with upwelling hot materials and/or a small plume. Moreover, low-attenuation regions are found beneath the Kazakh Shield and western Tien Shan, which can be attributed to the underthrusted/subducted lithospheric fragments. |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001375742400001 |
| 源URL | [http://ir.gig.ac.cn/handle/344008/81965]  |
| 专题 | 同位素地球化学国家重点实验室 |
| 通讯作者 | Ma, Xiaolong |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Isotope Geochem, Guangzhou 510640, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511458, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Xiaolong,Huang, Zongying. P-wave attenuation variations beneath the central and western Tien Shan from teleseismic waves[J]. JOURNAL OF GEODYNAMICS,2025,163:12. |
| APA | Ma, Xiaolong,&Huang, Zongying.(2025).P-wave attenuation variations beneath the central and western Tien Shan from teleseismic waves.JOURNAL OF GEODYNAMICS,163,12. |
| MLA | Ma, Xiaolong,et al."P-wave attenuation variations beneath the central and western Tien Shan from teleseismic waves".JOURNAL OF GEODYNAMICS 163(2025):12. |
入库方式： OAI收割
来源：广州地球化学研究所
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