Arid
DOI10.1144/SP467.12
Debris flows and water tracks in northern Victoria Land, continental East Antarctica: a new terrestrial analogue site for gullies and recurrent slope lineae on Mars
Hauber, E.1; Sassenroth, C.1; de Vera, J-P1; Schmitz, N.1; Jaumann, R.1; Reiss, D.2; Hiesinger, H.2; Johnsson, A.3
通讯作者Hauber, E.
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London, ENGLAND
英文摘要

Although the present environmental conditions on Mars prohibit the generation of significant volumes of liquid water, observations of several very young landforms, such as gullies and recurrent slope lineae, have been interpreted as signals for aqueous processes. To explore the range of conditions under which such features can be formed on Earth, a field site in northern Victoria Land, East Antarctica, was geomorphologically investigated. Despite the small size of the icefree area, the site displays gullies, water tracks and other traces of liquid water. The gullies show clear evidence of sediment transport by debris flows, and are typical of paraglacial processes on steep slopes in a recently deglaciated area. Water tracks appear in different forms, and seem to recur seasonally in the austral summer. Melting of snow and surface glacier ice is the major water source for both debris flows and water tracks. The observations presented here highlight the potential for hyperarid polar deserts to generate morphogenetically significant amounts of meltwater. The gullies are morphologically analogous to Martian gullies, and water tracks on steep slopes appear very similar to recurrent slope lineae. The observations suggest that even small icefree sites in continental Antarctica may enable observations which can serve as a basis for working hypotheses in Mars analogue studies, and future field work should consider more areas in Antarctica in addition to the McMurdo Dry Valleys to search for Mars analogue landforms.


来源出版物MARTIAN GULLIES AND THEIR EARTH ANALOGUES
ISSN0305-8719
出版年2019
卷号467
页码267-287
EISBN978-1-78620-360-1
出版者GEOLOGICAL SOC PUBLISHING HOUSE
类型Proceedings Paper
语种英语
国家Germany;Sweden
收录类别CPCI-S
WOS记录号WOS:000470918500012
WOS关键词MCMURDO DRY VALLEYS ; TAYLOR VALLEY ; LIQUID WATER ; SHALLOW LANDSLIDES ; RAINFALL INTENSITY ; DURATION CONTROL ; GRANULAR FLOWS ; POLAR DESERT ; FOEHN WINDS ; ICE
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/2XILL650/308219
作者单位1.Deutsch Zentrum Luft & Raumfahrt DLR, Inst Planetenforsch, Rutheifordstr 2, D-12489 Berlin, Germany;
2.Westfalische Wilhelms Univ Munster, Inst Planetol, Wilhelm Klemm Str 10, D-48149 Munster, Germany;
3.Univ Gothenburg, Dept Earth Sci, Box 100, S-40530 Gothenburg, Sweden
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Hauber, E.,Sassenroth, C.,de Vera, J-P,et al. Debris flows and water tracks in northern Victoria Land, continental East Antarctica: a new terrestrial analogue site for gullies and recurrent slope lineae on Mars[C]:GEOLOGICAL SOC PUBLISHING HOUSE,2019:267-287.
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