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Potentially habitable flow-like features from Martian dry ice geyser dune spots: Difference between revisions

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Potentially habitable flow-like features from Martian dry ice geyser dune spots (edit)

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==Southern hemisphere flow-like features==
 
This image shows the flow like features of the southern hemisphere.
 
{{Wide image | Flow-like-features.gif | 549 px | Flow-like features in Dunes on Richardson Crater, Mars. They form around the dark dune spots, in the debris of the hypothesized [[Geyser (Mars)|Martian Geysers]]. The dark material at the end of the flows moves at between 0.1 and 1.4 m/day in late spring / summer on Mars.<ref name=Kereszturi2008>Kereszturi, A., et al. [http://www.lpi.usra.edu/meetings/lpsc2008/pdf/1555.pdf "Analysis of possible interfacial water driven seepages on Mars"], Lunar and Planetary Science Conference. Vol. 39. 2008.</ref> All current models for it favour liquid water as a cause. Either interfacial layers, or else layers of water created through the solid state greenhouse effect.}}
 
The process starts with the dark dune spots which form in early spring. Here are some examples in [[Richardson (Martian crater)|Richardson Crater]] in the Martian southern hemisphere- one of the places where the Flow Like Features (FLFs) have been observed.
 
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For details see the Dark Dune Spots section of Nilton Renno's paper<ref name="MartínezRenno2013DarkDuneSpots"/> which also has images of the two types of feature as they progress through the season.
 
==Earlier hypotheses==
 
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