Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2016GL072319 |
The vanishing cryovolcanoes of Ceres | |
Sori, Michael M.1; Byrne, Shane1; Bland, Michael T.2; Bramson, Ali M.1; Ermakov, Anton I.3; Hamilton, Christopher W.1; Otto, Katharina A.4; Ruesch, Ottaviano5; Russell, Christopher T.6 | |
2017-02-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:3 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Germany |
英文摘要 | Ahuna Mons is a 4 km tall mountain on Ceres interpreted as a geologically young cryovolcanic dome. Other possible cryovolcanic features are more ambiguous, implying that cryovolcanism is only a recent phenomenon or that other cryovolcanic structures have been modified beyond easy identification. We test the hypothesis that Cerean cryovolcanic domes viscously relax, precluding ancient domes from recognition. We use numerical models to predict flow velocities of Ahuna Mons to be 10-500 m/Myr, depending upon assumptions about ice content, rheology, grain size, and thermal parameters. Slower flow rates in this range are sufficiently fast to induce extensive relaxation of cryovolcanic structures over 10(8)-10(9) years, but gradual enough for Ahuna Mons to remain identifiable today. Positive topographic features, including a tholus underlying Ahuna Mons, may represent relaxed cryovolcanic structures. A composition for Ahuna Mons of >40% ice explains the observed distribution of cryovolcanic structures because viscous relaxation renders old cryovolcanoes unrecognizable. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000396115000007 |
WOS关键词 | WATER ICE ; DIFFERENTIATION ; SATELLITES ; TOPOGRAPHY ; EVOLUTION ; RATES |
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/28463 |
专题 | 气候变化 |
作者单位 | 1.Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA; 2.US Geol Survey, Astrogeol Sci Ctr, Flagstaff, AZ 86001 USA; 3.CALTECH, Jet Prop Lab, Pasadena, CA USA; 4.German Aerosp Ctr DLR, Berlin, Germany; 5.NASA, Goddard Space Flight Ctr, Univ Space Res Assoc, Greenbelt, MD USA; 6.Univ Calif Los Angeles, Earth Planetary & Space Sci, Los Angeles, CA USA |
推荐引用方式 GB/T 7714 | Sori, Michael M.,Byrne, Shane,Bland, Michael T.,et al. The vanishing cryovolcanoes of Ceres[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(3). |
APA | Sori, Michael M..,Byrne, Shane.,Bland, Michael T..,Bramson, Ali M..,Ermakov, Anton I..,...&Russell, Christopher T..(2017).The vanishing cryovolcanoes of Ceres.GEOPHYSICAL RESEARCH LETTERS,44(3). |
MLA | Sori, Michael M.,et al."The vanishing cryovolcanoes of Ceres".GEOPHYSICAL RESEARCH LETTERS 44.3(2017). |
条目包含的文件 | 条目无相关文件。 |
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