Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2018GL077675 |
Predictions and Observations for the Oceanic Lithosphere From S-to-P Receiver Functions and SS Precursors | |
Rychert, Catherine A.; Harmon, Nick | |
2018-06-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:11页码:5398-5406 |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | The ocean lithosphere is classically described by the thermal half-space cooling (HSC) or the plate models, both characterized by a gradual transition to the asthenosphere beneath. Scattered waves find sharp seismic discontinuities beneath the oceans, possibly from the base of the plate. Active source studies suggest sharp discontinuities from a melt channel. We calculate synthetic S-to-P receiver functions and SS precursors for the HSC and plate models and also for channels. We find that the HSC and plate model velocity gradients are too gradual to create interpretable scattered waves from the base of the plate. Subtle phases are predicted to follow a similar trend as observations, flattening at older ages. Therefore, the seismic discontinuities are probably caused by a thermally controlled process that can also explain their amplitude, such as melting. Melt may coalesce in channels, although channels >10 km thick should be resolvable by scattered wave imaging. |
英文关键词 | ocean scattered waves thermal lithosphere-asthenosphere seismology melt |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000436249900021 |
WOS关键词 | ASTHENOSPHERE BOUNDARY ; UPPER-MANTLE ; GUTENBERG DISCONTINUITY ; PACIFIC LITHOSPHERE ; SEISMIC STRUCTURE ; HAWAIIAN PLUME ; HEAT-FLOW ; MELT ; OLIVINE ; BENEATH |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
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/27840 |
专题 | 气候变化 |
作者单位 | Univ Southampton, Ocean & Earth Sci, Southampton, Hants, England |
推荐引用方式 GB/T 7714 | Rychert, Catherine A.,Harmon, Nick. Predictions and Observations for the Oceanic Lithosphere From S-to-P Receiver Functions and SS Precursors[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(11):5398-5406. |
APA | Rychert, Catherine A.,&Harmon, Nick.(2018).Predictions and Observations for the Oceanic Lithosphere From S-to-P Receiver Functions and SS Precursors.GEOPHYSICAL RESEARCH LETTERS,45(11),5398-5406. |
MLA | Rychert, Catherine A.,et al."Predictions and Observations for the Oceanic Lithosphere From S-to-P Receiver Functions and SS Precursors".GEOPHYSICAL RESEARCH LETTERS 45.11(2018):5398-5406. |
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