globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2020.116389
论文题名:
The formation of Enceladus' Tiger Stripe Fractures from eccentricity tides
作者: Rhoden A.R.; Hurford T.A.; Spitale J.; Henning W.; Huff E.M.; Bland M.T.; Sajous S.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 544
语种: 英语
中文关键词: Enceladus ; ocean worlds ; satellite tides ; tectonics
英文关键词: Poles ; Tectonics ; Global ocean ; Ice shells ; Icy shell ; North Pole ; South polar region ; South pole ; Tectonic activity ; Tidal stress ; Fracture ; eccentricity ; fracture ; planetary satellite ; Saturn ; tectonic structure ; tide
英文摘要: Enceladus has a young, tectonically active south polar region, which is erupting material from a prominent set of fractures called Tiger Stripes. No comparable activity is observed at the north pole, which is heavily cratered with limited tectonism. Given the many lines of evidence supporting a global ocean under Enceladus' icy shell, the reason for the dichotomy in geologic activity is unclear. We model the formation of the Tiger Stripes as tidally-driven fractures and examine the magnitudes of tidal stresses with different ice shell structures in order to explore whether and how tidal stress might explain Enceladus' distribution of tectonic activity. We find that eccentricity-driven tidal stresses would produce fractures of nearly identical orientations to the observed Tiger Stripe Fractures and that a 10-km difference in ice shell thickness between the north and south poles can result in substantially different tidal stress magnitudes, providing a natural explanation for the hemispheric dichotomy in tectonic activity on Enceladus. Finally, we synthesize these results with Enceladus' global geologic record to offer insight into the evolution of this enigmatic moon. © 2020
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165232
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Southwest Research Institute, Boulder, CO, United States; NASA Goddard Space Flight Center, Code 698, Greenbelt, MD, United States; Planetary Science Institute, Tucson, AZ, United States; Department of Astronomy, University of Maryland – College Park, College Park, MD, United States; NASA Jet Propulsion Laboratory, Pasadena, CA, United States; Astrogeology Science Center, U. S. Geological Survey, Flagstaff, AZ, United States; Sajous Consulting, LLC, Denver, CO, United States

Recommended Citation:
Rhoden A.R.,Hurford T.A.,Spitale J.,et al. The formation of Enceladus' Tiger Stripe Fractures from eccentricity tides[J]. Earth and Planetary Science Letters,2020-01-01,544
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Rhoden A.R.]'s Articles
[Hurford T.A.]'s Articles
[Spitale J.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Rhoden A.R.]'s Articles
[Hurford T.A.]'s Articles
[Spitale J.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Rhoden A.R.]‘s Articles
[Hurford T.A.]‘s Articles
[Spitale J.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.