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DOI: 10.1002/2016GL070370
论文题名:
Cryogenic flow features on Ceres: Implications for crater-related cryovolcanism
作者: Krohn K.; Jaumann R.; Stephan K.; Otto K.A.; Schmedemann N.; Wagner R.J.; Matz K.-D.; Tosi F.; Zambon F.; von der Gathen I.; Schulzeck F.; Schröder S.E.; Buczkowski D.L.; Hiesinger H.; McSween H.Y.; Pieters C.M.; Preusker F.; Roatsch T.; Raymond C.A.; Russell C.T.; Williams D.A.
刊名: Geophysical Research Letters
ISSN: 0094-8328
EISSN: 1944-8059
出版年: 2016
卷: 43, 期:23
起始页码: 11994
结束页码: 12003
语种: 英语
英文关键词: coefficient of friction ; cryovolcanism ; dwarf planet Ceres ; flow features ; impact melt ; subsurface materials
Scopus关键词: Gravitation ; Coefficient of frictions ; Cryovolcanism ; Dwarf planets ; Flow features ; Impact melt ; Sub-surface materials ; Friction ; Ceres
英文摘要: Craters on Ceres, such as Haulani, Kupalo, Ikapati, and Occator show postimpact modification by the deposition of extended plains material with pits, multiple lobate flows, and widely dispersed deposits that form a diffuse veneer on the preexisting surface. Bright material units in these features have a negative spectral slope in the visible range, making it appear bluish with respect to the grey-toned overall surface of Ceres. We calculate the drop height-to-runout length ratio of several flow features and obtain a coefficient of friction of < 0.1: The results imply higher flow efficiency for flow features on Ceres than for similar features on other planetary bodies with similar gravity, suggesting low-viscosity material. The special association of flow features with impact craters could either point to an impact melt origin or to an exogenic triggering of cryovolcanic processes. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85007358875&doi=10.1002%2f2016GL070370&partnerID=40&md5=a26c37287713425202e193440d63c4f8
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9291
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: Institute of Planetary Research, Deutsches Zentrum für Luft- und Raumfahrt, Berlin, Germany

Recommended Citation:
Krohn K.,Jaumann R.,Stephan K.,et al. Cryogenic flow features on Ceres: Implications for crater-related cryovolcanism[J]. Geophysical Research Letters,2016-01-01,43(23).
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