Geologically recent gully – polygon relationships on Mars : Insights from the Antarctic Dry Valleys on the roles of permafrost , microclimates , and water sources for surface flow

@inproceedings{Levy2009GeologicallyRG,
  title={Geologically recent gully – polygon relationships on Mars : Insights from the Antarctic Dry Valleys on the roles of permafrost , microclimates , and water sources for surface flow},
  author={J. S. Levy and James W. Head and David R. Marchant and James Langley Dickson and Gareth A. Morgan},
  year={2009}
}
a r t i c l e i n f o a b s t r a c t We describe the morphology and spatial relationships between composite-wedge polygons and Mars-like gullies (consisting of alcoves, channels, and fans) in the hyper-arid Antarctic Dry Valleys (ADV), as a basis for understanding possible origins for martian gullies that also occur in association with polygonally patterned ground. Gullies in the ADV arise in part from the melting of atmospherically-derived, wind-blown snow trapped in polygon troughs. Snowmelt… CONTINUE READING