Pingo like structure - rarity
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by JellyMonster
Bit out of touch but I have only encountered one pingo like structure on the Martian surface - why just the one?
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by wassock moderator
Hi there Jellymonster, suggest you pop over to P4 terrains and look up a few "conical mounds"
https://www.zooniverse.org/projects/mschwamb/planet-four-terrains/talk/tags/conicalmounds/
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by JellyMonster
Great images thanks wassock. So all these 'limpets' are related to the Paul Johnson's solitary 'Space Chimney'?
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by wassock moderator
Don't think so - the chimney turns out to be a hole, and there seem to be several species of limpet on different types of terrain, so may have different causes.
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