Space/Science — HabitableZone

Space/Science » in reply to re: Valles Marineris - a gigantic dehydration crack?

Yeah but...

The "dehydration" (or whatever it is) clearly poitdates crater formation. Given the size and preservation of the crater, it must be late Hesperian to mid-Amazonian in age.

Now fit that into the chronology of Mars oceans...

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