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Space/Science
» in reply to
Yes...
Agreed, still sporadic volcanism and many small flows
nick hoffman
—
7/19/2008 5:14:10 AM
(archived)
Whatever is causing them...
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The whole thread
(13 posts)
Phylosillicates on mars
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marsbug
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7/17/2008 1:19:32 PM
OK, so can we agree that Mars has been dead for 3.8 Ga?
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nick hoffman
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7/17/2008 2:25:49 PM
Evidence for life on earth more than 3.8b years ago
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pwokenyaw
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7/19/2008 3:37:12 AM
re: Evidence for life on earth more than 3.8b years ago
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marsbug
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7/19/2008 5:11:56 PM
re: OK, so can we agree that Mars has been dead for 3.8 Ga?
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marsbug
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7/18/2008 1:17:09 PM
Yes...
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marsbug
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7/18/2008 1:25:23 PM
Agreed, still sporadic volcanism and many small flows
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nick hoffman
-
7/19/2008 5:14:10 AM
Even in the Noachian, mostly dry
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dtb
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7/18/2008 2:20:48 AM
This was one of the points I raised in my "ephemeral atmospheres" work
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nick hoffman
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7/19/2008 4:33:44 AM
Gullies mostly dry too (other Howard talk)
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dtb
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7/18/2008 2:30:06 AM
Wouldn't fossiles last a lot longer on a "dead" world, though?
(n/t)
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alcaray
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7/17/2008 9:17:15 PM
Probably
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dtb
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7/18/2008 1:46:14 PM
Geologically recent sulfate deposits in Mars north polar regions.
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Robert Clark
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7/17/2008 3:26:23 PM
HabitableZone — be civil, or at least entertaining.