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DOI | 10.1029/2020GL091654 |
New insights into the heterogeneity of the lithosphere‐asthenosphere system beneath South China from teleseismic body‐wave attenuation | |
Yangfan Deng; Joseph S. Byrnes; Maximiliano Bezada | |
2021-02-01 | |
发表期刊 | Geophysical Research Letters
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出版年 | 2021 |
英文摘要 | Teleseismic body‐wave attenuation provides an independent constraint on the architecture of the lithosphere‐asthenosphere system. We obtain the first map of teleseismic attenuation across South China, which correlates well with previous estimates of lithospheric thickness. The weakest attenuation occurs in the Sichuan Basin, where continental lithosphere is thick, and in the adjacent Chuandian region, which we attribute to delaminated lithosphere, or lithosphere strengthened by an ancient plume based on comparison with previous studies. Smaller batches of remnant or delaminated lithosphere may cause local minima along the eastern coast. Pronounced negative anomalies occur in the Hengyang, Jianghan and Nanchang basins, motivating the hypothesis that the basins occur where locally strong blocks within the lithosphere resisted the pervasive deformation of South China. The strongest attenuation occurs in a broad region in the vicinity of the Hainan plume, which is consistent with high temperatures and possibly partial melt in the upper mantle. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/313838 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Yangfan Deng,Joseph S. Byrnes,Maximiliano Bezada. New insights into the heterogeneity of the lithosphere‐asthenosphere system beneath South China from teleseismic body‐wave attenuation[J]. Geophysical Research Letters,2021. |
APA | Yangfan Deng,Joseph S. Byrnes,&Maximiliano Bezada.(2021).New insights into the heterogeneity of the lithosphere‐asthenosphere system beneath South China from teleseismic body‐wave attenuation.Geophysical Research Letters. |
MLA | Yangfan Deng,et al."New insights into the heterogeneity of the lithosphere‐asthenosphere system beneath South China from teleseismic body‐wave attenuation".Geophysical Research Letters (2021). |
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