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Originally posted by bloodlust11009
wow now we can atleast think it whas possible for life on mars
Originally posted by LadyV
Originally posted by bloodlust11009
wow now we can atleast think it whas possible for life on mars
No...only life as "we" know it...that always drives me nuts! Why is it that if there is life anywhere else, it must adhere to "our" biology of things?
Conclusion: An ice rich layer approximately 40m thick is revealed by the presence of recently activeice-wedge polygons in at least part of the Casiusquadrangle, and possibly more extensively across thenorthern plains. Higher obliquity probably causeddeposition of the mantle before 5 Ma; formation ofpolygons has continued until the present.
Further, the preservation of ice-rich debris beneath a sublimation till suggests that climate conditions haveremained cold and dry on Mars for at least the pastseveral billion years, and that flood residue can bemaintained for unprecedented periods of time. Theformation of extensive sublimation pits stronglysuggests that parts of the remaining deposit arecurrently ice-rich, making this deposit a primary target in exobiological and ancient climate investigations.
This example in the Deuteronilus Mensae region shows an integrated pattern interpreted to represent snow and ice accumulation and flow for ~70 km and resembles valley glacial systems on Earth in major morphology, topographic shape, planform and detailed surface features. These data imply that during the Late Amazonian, significant climate change occurred to cause sustained snow and ice accumulation and flow at mid-latitudes to form a regional system of valley glaciers [22].
Summary: We will show, that even in the equatorial regions of Mars ground ice deposits can be stable over long periods of time. The main assumption we have to do is, that the near surface layer of Mars is not in an equilibrium state. There are mounting evidences of Martian climate cycles on different time scales. One of the shortest time scales indicated by the layering in the polar caps is in the order of only several 10ka.