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DOI | 10.1126/science.aao3508 |
Determination of intrinsic attenuation in the oceanic lithosphere-asthenosphere system | |
Takeuchi, Nozomu1; Kawakatsu, Hitoshi1; Shiobara, Hajime1; Isse, Takehi1; Sugioka, Hiroko2; Ito, Aki3; Utada, Hisashi1 | |
2017-12-22 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2017 |
卷号 | 358期号:6370页码:1593-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Japan |
英文摘要 | We recorded P and S waves traveling through the oceanic lithosphere-asthenosphere system (LAS) using broadband ocean-bottom seismometers in the northwest Pacific, and we quantitatively separated the intrinsic (anelastic) and extrinsic (scattering) attenuation effects on seismic wave propagation to directly infer the thermomechanical properties of the oceanic LAS. The strong intrinsic attenuation in the asthenosphere obtained at higher frequency (similar to 3 hertz) is comparable to that constrained at lower frequency (similar to 100 seconds) by surface waves and suggests frequency-independent anelasticity, whereas the intrinsic attenuation in the lithosphere is frequency dependent. This difference in frequency dependence indicates that the strong and broad peak dissipation recently observed in the laboratory exists only in the asthenosphere and provides new insight into what distinguishes the asthenosphere from the lithosphere. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000418448000059 |
WOS关键词 | SURFACE-WAVE ANALYSIS ; TIME WINDOW ANALYSIS ; POLYCRYSTAL ANELASTICITY ; SEISMIC ATTENUATION ; STRUCTURE BENEATH ; WESTERN PACIFIC ; GUIDED-WAVES ; SEA-FLOOR ; S-WAVES ; SCATTERING |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
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/197610 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Univ Tokyo, Earthquake Res Inst, Bunkyo Ku, Yayoi 1-1-1, Tokyo 1130032, Japan; 2.Kobe Univ, Grad Sch Sci, Nada Ku, 1-1 Rokkodai Cho, Kobe, Hyogo 6578501, Japan; 3.Japan Agcy Marine Earth Sci & Technol, Natsushima Cho 2-15, Yokosuka, Kanagawa 2370061, Japan |
推荐引用方式 GB/T 7714 | Takeuchi, Nozomu,Kawakatsu, Hitoshi,Shiobara, Hajime,et al. Determination of intrinsic attenuation in the oceanic lithosphere-asthenosphere system[J]. SCIENCE,2017,358(6370):1593-+. |
APA | Takeuchi, Nozomu.,Kawakatsu, Hitoshi.,Shiobara, Hajime.,Isse, Takehi.,Sugioka, Hiroko.,...&Utada, Hisashi.(2017).Determination of intrinsic attenuation in the oceanic lithosphere-asthenosphere system.SCIENCE,358(6370),1593-+. |
MLA | Takeuchi, Nozomu,et al."Determination of intrinsic attenuation in the oceanic lithosphere-asthenosphere system".SCIENCE 358.6370(2017):1593-+. |
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