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DOI | 10.1038/s41467-019-08884-w |
Impact-induced changes in source depth and volume of magmatism on Mercury and their observational signatures | |
Padovan, Sebastiano1; Tosi, Nicola1,2; Plesa, Ana-Catalina1; Ruedas, Thomas1,3 | |
2019-02-26 | |
发表期刊 | NATURE COMMUNICATIONS |
ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | Mercury's crust is mostly the result of partial melting in the mantle associated with solid-state convection. Large impacts induce additional melting by generating subsurface thermal anomalies. By numerically investigating the geodynamical effects of impacts, here we show that impact-generated thermal anomalies interact with the underlying convection modifying the source depth of melt and inducing volcanism that can significantly postdate the impact depending on the impact time and location with respect to the underlying convection pattern. We can reproduce the volume and time of emplacement of the melt sheets in the interior of Caloris and Rembrandt if at about 3.7-3.8 Ga convection in the mantle of Mercury was weak, an inference corroborated by the dating of the youngest large volcanic provinces. The source depth of the melt sheets is located in the stagnant lid, a volume of the mantle that never participated in convection and may contain pristine mantle material. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000417054900012 |
WOS关键词 | SMOOTH PLAINS ; THERMOCHEMICAL EVOLUTION ; GLOBAL CONTRACTION ; THERMAL EVOLUTION ; BASIN ; ORIGIN ; STRATIGRAPHY ; CHRONOLOGY ; VOLCANISM ; ELEMENTS |
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/204240 |
专题 | 资源环境科学 |
作者单位 | 1.German Aerosp Ctr, Dept Planetary Phys, D-12489 Berlin, Germany; 2.Tech Univ Berlin, Dept Astron & Astrophys, D-10623 Berlin, Germany; 3.Univ Munster, Inst Planetol, D-48149 Munster, Germany |
推荐引用方式 GB/T 7714 | Padovan, Sebastiano,Tosi, Nicola,Plesa, Ana-Catalina,et al. Impact-induced changes in source depth and volume of magmatism on Mercury and their observational signatures[J]. NATURE COMMUNICATIONS,2019,8. |
APA | Padovan, Sebastiano,Tosi, Nicola,Plesa, Ana-Catalina,&Ruedas, Thomas.(2019).Impact-induced changes in source depth and volume of magmatism on Mercury and their observational signatures.NATURE COMMUNICATIONS,8. |
MLA | Padovan, Sebastiano,et al."Impact-induced changes in source depth and volume of magmatism on Mercury and their observational signatures".NATURE COMMUNICATIONS 8(2019). |
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