干旱区生态环境知识资源中心(Arid): Martian gullies: a comprehensive review of observations, mechanisms and insights from Earth analogues

Arid

DOI	10.1144/SP467.14
	Martian gullies: a comprehensive review of observations, mechanisms and insights from Earth analogues
	Conway, Susan J.1; De Haas, Tjalling 2,3; Harrison, Tanya N.4
通讯作者	Conway, Susan J.
会议名称	2nd International Workshop on Martian Gullies - Martian Gullies and their Earth Analogues
会议日期	JUN 20-21, 2016
会议地点	Geol Soc London, London, ENGLAND
英文摘要	Upon their discovery in 2000, Martian gullies were hailed as the first proof of recent (i. e. less than a few million years) flowing liquid water on the surface of a dry desert planet. Many processes have been proposed to have formed Martian gullies, ranging from liquid-water seepage from aquifers, melting of snow, ice and frost, to dry granular flows, potentially lubricated by CO2. Terrestrial analogues have played a pivotal role in the conception and validation of gully-formation mechanisms. Comparison with the terrestrial landscape argues for gully formation by liquidwater debris flows originating from surface melting. However, limited knowledge of sediment transport by sublimation is a critical factor in impeding progress on the CO2-sublimation hypothesis. We propose avenues towards resolving the debate: (a) laboratory simulations targeting variables that can be measured from orbit; (b) applications of landscape-evolution models; (c) incorporation of the concept of sediment connectivity; (d) using 3D fluid-dynamic models to link deposit morphology and flow rheology; and (e) a more intense exchange of techniques between terrestrial and planetary geomorphology, including quantitative and temporal approaches. Finally, we emphasize that the present may not accurately represent the past and that Martian gullies likely formed by a combination of processes.
来源出版物	MARTIAN GULLIES AND THEIR EARTH ANALOGUES
ISSN	0305-8719
出版年	2019
卷号	467
页码	7-66
ISBN	978-1-78620-360-1
EISBN	978-1-78620-360-1
出版者	GEOLOGICAL SOC PUBLISHING HOUSE
类型	Proceedings Paper
语种	英语
国家	France;England;Netherlands;USA
开放获取类型	Green Submitted
收录类别	CPCI-S
WOS记录号	WOS:000470918500002
WOS关键词	RECURRING SLOPE LINEAE ; SURFACE RUNOFF FEATURES ; SNOW-AVALANCHE ACTIVITY ; TRANSIENT LIQUID WATER ; LOBATE DEBRIS APRONS ; LONG-TERM EVOLUTION ; RECENT ICE AGES ; TERRESTRIAL ANALOGS ; GRANULAR FLOWS ; TAYLOR VALLEY
WOS类目	Astronomy & Astrophysics ; Geology ; Geosciences, Multidisciplinary
WOS研究方向	Astronomy & Astrophysics ; Geology
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/308056
作者单位	1.UMR CNRS 6112, Lab Planetol & Geodynam Nantes, 2 Rue Houssiniere,BP 92208, F-44322 Nantes 3, France; 2.Univ Durham, Dept Geog, South Rd, Durham DH1 3LE, England; 3.Univ Utrecht, Fac Geosci, Vening Meineszgebouw A,Princetonlaan 8a, Utrecht, Netherlands; 4.Arizona State Univ, Sch Earth & Space Explorat, ISTB4 Room 795,781 Terrace Mall, Tempe, AZ 85287 USA
推荐引用方式 GB/T 7714	Conway, Susan J.,De Haas, Tjalling,Harrison, Tanya N.. Martian gullies: a comprehensive review of observations, mechanisms and insights from Earth analogues[C]:GEOLOGICAL SOC PUBLISHING HOUSE,2019:7-66.