Earthlike Mars? |
Earthlike Mars? |
Apr 1 2009, 02:28 AM
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#101
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Member Group: Members Posts: 233 Joined: 21-April 05 Member No.: 328 |
All, I know this isn't the right place for this post, but I've looked around and can't find an appropriate, current UMSF forum (Doug, perhaps you could give me some guidance on establishing such) -- so here goes: I think a [the] new paradigm for Martian geology is rapidly coalescing, namely, that Mars is very much like the Earth in terms of the preponderance of water -- except that it is all frozen, and covered under a thin layer of dust/regolith! See, for example, this article:
http://www.skyandtelescope.com/news/41995902.html Hence the "seepages" found in crater walls; hence the evidence of catastophic flooding -- the result of volcanism melting huge pockets of ice. And I am going to add my own wrinkle (probably not original): that the differentiation of Mars into a rougher southern hemisphere and smoother northern hemsphere represents something like Earth's Pangea stage, ie, the northern hemisphere is a vast frozen sea covered with a thin layer of ice. |
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Aug 18 2012, 01:22 PM
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#102
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Member Group: Members Posts: 495 Joined: 12-February 12 Member No.: 6336 |
Well it seem that Mars have more signs of plate tectonic activity
The item describe this as entirely new, yet I am certain that many of us Marsophile people here on this forum are aware that the shield volcanoes of Tharsis montes looked quite similar to certain features on Earth where a continental plate have moved over a hot spot of the mantle. (Those from USA might compare to volcanos of Hawaii) Whereas Valles marineris already have been suspected of being a feature similar to Rift valley in Africa. http://www.sciencedaily.com/releases/2012/...55831.htm">Science daily on Plate Tectonics On Mars</a> Edit to get a working link. |
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