气候变化领域集成服务门户(CCPortal): Strength Evolution of Ice Plume Deposit Analogs of Enceladus and Europa

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DOI	10.1029/2020GL088953
	Strength Evolution of Ice Plume Deposit Analogs of Enceladus and Europa
	Choukroun M.; Molaro J.L.; Hodyss R.; Marteau E.; Backes P.; Carey E.M.; Dhaouadi W.; Moreland S.; Schulson E.M.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:15
英文摘要	Enceladus and possibly Europa spew materials from their internal ocean into their exosphere, some of which are deposited back onto the surface of those Ocean Worlds. This setting provides a unique opportunity to seek traces of past or extant life in ice plume deposits on their surfaces. However, the design of lander missions and surface sampling techniques and the choice of sampling locations rely heavily on strength expectations. Here we present an experimental investigation of the evolution in strength of ice plume deposit analogs at several temperatures, as well as a model that predicts first-order estimates of the strength of evolved ice plume deposits under geologic timescales relevant to Enceladus and Europa. These results suggest that plume deposits remain weak and poorly consolidated on Enceladus, while they may develop substantial strength (comparable to solid ice) within <100 Myr on Europa. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Deposits; Ionosphere; Enceladus; Experimental investigations; First order; Sampling location; Surface sampling; Time-scales; Ice; Enceladus; Europa; experimental study; geological time; ice crystal; plume; timescale
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169953
作者单位	Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, United States; Planetary Science Institute, Tucson, AZ, United States; Department of Mechanical and Process Engineering, ETH Zürich, Zurich, Switzerland; Thayer School of Engineering, Dartmouth College, Hanover, NH, United States
推荐引用方式 GB/T 7714	Choukroun M.,Molaro J.L.,Hodyss R.,et al. Strength Evolution of Ice Plume Deposit Analogs of Enceladus and Europa[J],2020,47(15).
APA	Choukroun M..,Molaro J.L..,Hodyss R..,Marteau E..,Backes P..,...&Schulson E.M..(2020).Strength Evolution of Ice Plume Deposit Analogs of Enceladus and Europa.Geophysical Research Letters,47(15).
MLA	Choukroun M.,et al."Strength Evolution of Ice Plume Deposit Analogs of Enceladus and Europa".Geophysical Research Letters 47.15(2020).