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MORPHOLOGIC AND MORPHOMETRIC COMPARISION OF GULLIES ON SVALBARD AND MARS.

Poster
Authors Dennis Reiss
Harald Hiesinger
Ernst Hauber
Michael Zanetti
F. Preusker
F. Trauthan
G.M. Reimann
Jan Raak
Ella Carlsson
Andreas Johnsson
Mats Olvmo
H.A.B. Johansson
Lars Johansson
Steve McDaniel
Published in 40th Lunar and Planetary Science Conference
Issue 2362
Publication year 2009
Published at Department of Earth Sciences
Language en
Links www.lpi.usra.edu/meetings/lpsc2009/...
Keywords Mars, Svalbard, gully, periglacial, permafrost, ice, snow melt
Subject categories Planetary system, Earth and Related Environmental Sciences, Physical Geography

Abstract

The morphology of gullies on Mars indi-cates that they were formed by the action of water. How-ever, it is not clear what the dominant gully forming process is. On Earth, gullies might have formed by the processes of overland flow or debris flows, or a combination of both. In this work we compare the morphologic and morphometric observations and measurements (slopes, depth-width ratios and sinuosities) of Martian gullies with terrestrial analogs from Svalbard, Norway, in order to constrain the formation process (fluvial and/or debris flow).

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