Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL072668 |
Impact of the lithosphere on dynamic topography: Insights from analogue modeling | |
Sembroni, Andrea1; Kiraly, Agnes1; Faccenna, Claudio1; Funiciello, Francesca1; Becker, Thorsten W.2; Globig, Jan3; Fernandez, Manuel3 | |
2017-03-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:6 |
文章类型 | Article |
语种 | 英语 |
国家 | Italy; USA; Spain |
英文摘要 | Density anomalies beneath the lithosphere are expected to generate dynamic topography at the Earth's surface due to the induced mantle flow stresses which scale linearly with density anomalies, while the viscosity of the upper mantle is expected to control uplift rates. However, limited attention has been given to the role of the lithosphere. Here we present results from analogue modeling of the interactions between a density anomaly rising in the mantle and the lithosphere in a Newtonian system. We find that, for instabilities with wavelengths of the same order of magnitude as lithosphere thickness, the uplift rate and the geometry of the surface bulge are inversely correlated to the lithosphere thickness. We also show that a layered lithosphere may modulate the topographic signal. With respect to previous approaches our models represent a novel attempt to unravel the way normal stresses generated by mantle flow are transmitted through a rheologically stratified lithosphere and the resulting topographic signal. |
英文关键词 | dynamic topography mantle anomaly analogue modeling lithosphere surface bulge uplift |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000399762700010 |
WOS关键词 | GRAVITY-ANOMALIES ; MANTLE DYNAMICS ; SURFACE ; PLUMES ; FLUID ; EARTH |
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/26811 |
专题 | 气候变化 |
作者单位 | 1.Roma Tre Univ, Dept Sci, Rome, Italy; 2.Univ Texas Austin, Inst Geophys, Jackson Sch Geosci, Austin, TX USA; 3.Inst Earth Sci Jaume Almera ICTJA CSIC, Barcelona, Spain |
推荐引用方式 GB/T 7714 | Sembroni, Andrea,Kiraly, Agnes,Faccenna, Claudio,et al. Impact of the lithosphere on dynamic topography: Insights from analogue modeling[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(6). |
APA | Sembroni, Andrea.,Kiraly, Agnes.,Faccenna, Claudio.,Funiciello, Francesca.,Becker, Thorsten W..,...&Fernandez, Manuel.(2017).Impact of the lithosphere on dynamic topography: Insights from analogue modeling.GEOPHYSICAL RESEARCH LETTERS,44(6). |
MLA | Sembroni, Andrea,et al."Impact of the lithosphere on dynamic topography: Insights from analogue modeling".GEOPHYSICAL RESEARCH LETTERS 44.6(2017). |
条目包含的文件 | 条目无相关文件。 |
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