Climate Change Data Portal
| DOI | 10.1146/annurev-earth-082119-065909 |
| Heterogeneity of Seismic Wave Velocity in Earth's Mantle | |
| Ritsema J.; Lekić V. | |
| 发表日期 | 2020 |
| ISSN | 0084-6597 |
| 起始页码 | 377 |
| 结束页码 | 401 |
| 卷号 | 48 |
| 英文摘要 | Seismology provides important constraints on the structure and dynamics of the deep mantle. Computational and methodological advances in the past two decades improved tomographic imaging of the mantle and revealed the fine-scale structure of plumes ascending from the core-mantle boundary region and slabs of oceanic lithosphere sinking into the lower mantle. We discuss the modeling aspects of global tomography including theoretical approximations, data selection, and model fidelity and resolution. Using spectral, principal component, and cluster analyses, we highlight the robust patterns of seismic heterogeneity, which inform us of flow in the mantle, the history of plate motions, and potential compositionally distinct reservoirs. In closing, we emphasize that data mining of vast collections of seismic waveforms and new data from distributed acoustic sensing, autonomous hydrophones, ocean-bottom seismometers, and correlation-based techniques will boost the development of the next generation of global models of density, seismic velocity, and attenuation. Seismic tomography reveals the 100-km to 1,000-km scale variation of seismic velocity heterogeneity in the mantle. Tomographic images are the most important geophysical constraints on mantle circulation and evolution. © Copyright 2020 by Annual Reviews. All rights reserved. |
| 关键词 | Cluster analysisData miningPrincipal component analysisSeismic wavesSeismographsStructural geologyTomographyWave propagationCorrelation-based techniquesFine-scale structuresOcean bottom seismometerPrincipal ComponentsSeismic heterogeneitySeismic wave velocityStructure and dynamicsTheoretical approximationsSeismologycore-mantle boundaryEarthheterogeneitylower mantlemantlemantle plumemantle structureoceanic lithosphereseismic waveseismologyslabtomographywave velocity |
| 语种 | 英语 |
| 来源机构 | Annual Review of Earth and Planetary Sciences |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/131900 |
| 推荐引用方式 GB/T 7714 | Ritsema J.,Lekić V.. Heterogeneity of Seismic Wave Velocity in Earth's Mantle[J]. Annual Review of Earth and Planetary Sciences,2020,48. |
| APA | Ritsema J.,&Lekić V..(2020).Heterogeneity of Seismic Wave Velocity in Earth's Mantle.,48. |
| MLA | Ritsema J.,et al."Heterogeneity of Seismic Wave Velocity in Earth's Mantle".48(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
| 个性服务 |
| 推荐该条目 |
| 保存到收藏夹 |
| 导出为Endnote文件 |
| 谷歌学术 |
| 谷歌学术中相似的文章 |
| [Ritsema J.]的文章 |
| [Lekić V.]的文章 |
| 百度学术 |
| 百度学术中相似的文章 |
| [Ritsema J.]的文章 |
| [Lekić V.]的文章 |
| 必应学术 |
| 必应学术中相似的文章 |
| [Ritsema J.]的文章 |
| [Lekić V.]的文章 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
