Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075086 |
Evidence for the Interior Evolution of Ceres from Geologic Analysis of Fractures | |
Scully, J. E. C.1; 39;Brien, D. P.2 | |
2017-10-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Germany; Italy |
英文摘要 | Ceres is the largest asteroid belt object, and the Dawn spacecraft observed Ceres since 2015. Dawn observed two morphologically distinct linear features on Ceres's surface: secondary crater chains and pit chains. Pit chains provide unique insights into Ceres's interior evolution. We interpret pit chains called the Samhain Catenae as the surface expression of subsurface fractures. Using the pit chains' spacings, we estimate that the localized thickness of Ceres's fractured, outer layer is approximately >= 58 km, at least similar to 14km greater than the global average. We hypothesize that extensional stresses, induced by a region of upwelling material arising from convection/diapirism, formed the Samhain Catenae. We derive characteristics for this upwelling material, which can be used as constraints in future interior modeling studies. For example, its predicted location coincides with Hanami Planum, a high-elevation region with a negative residual gravity anomaly, which may be surficial evidence for this proposed region of upwelling material. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413921300006 |
WOS关键词 | ICE ; DIFFERENTIATION |
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/27526 |
专题 | 气候变化 |
作者单位 | 1.CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA; 2.Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA; 3.Free Univ Berlin, Inst Geol Sci, Berlin, Germany; 4.Virginia Polytech Inst & State Univ, Dept Geol Sci, Blacksburg, VA 24061 USA; 5.US Geol Survey, Astrogeol Sci Ctr, Flagstaff, AZ 86001 USA; 6.Planetary Sci Inst, Tucson, AZ USA; 7.Southwest Res Inst, Boulder, CO USA; 8.INAF Ist Astrofis & Planetol Spaziali IAPS, Rome, Italy; 9.Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, Los Angeles, CA USA; 10.Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA; 11.Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ USA |
推荐引用方式 GB/T 7714 | Scully, J. E. C.,39;Brien, D. P.. Evidence for the Interior Evolution of Ceres from Geologic Analysis of Fractures[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(19). |
APA | Scully, J. E. C.,&39;Brien, D. P..(2017).Evidence for the Interior Evolution of Ceres from Geologic Analysis of Fractures.GEOPHYSICAL RESEARCH LETTERS,44(19). |
MLA | Scully, J. E. C.,et al."Evidence for the Interior Evolution of Ceres from Geologic Analysis of Fractures".GEOPHYSICAL RESEARCH LETTERS 44.19(2017). |
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