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Old 12th August 2012, 01:13 AM   #1
MaGZ
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Gale Crater and Mount Sharp

Gale Crater and Mount Sharp

Can anyone here explain why there is a mountain in the center of crater? What are the prevailing theories to explain this?

I found this page:

http://www.nasa.gov/mission_pages/ms.../pia15292.html
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Old 12th August 2012, 01:23 AM   #2
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I read on Wikipedia, Mount Sharp was formed by sedimentary layers. (from an ancient ocean floor?) It appears to be 2/3 the height of Mt. Everest.

http://www.nasa.gov/mission_pages/ms...5292-Fig2.html
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Old 12th August 2012, 01:55 AM   #3
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I think the best explaination so far is a central uplift inside the original crater and the erosion of crater rim materials bringing sedimemnts into the crater to be layed down as the flanks.
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Old 12th August 2012, 07:56 AM   #4
steve s
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It's a common feature in large craters.

http://en.wikipedia.org/wiki/Impact_crater

Scroll down to Modification and Collapse.

Steve S
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Old 12th August 2012, 08:25 PM   #5
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Gotta think outside the box dude. Ever heard of the quantidrolmons? No ?….they’re rather large beings that occupy interstellar space. Besides farting out interesting gas-cloud formations (which nasa dutifully photographs with Hubble) they pass their time playing large-scale pool. They rack up a triangle of suitably sized planetoid thingy’s and whack them around the galaxy. Once in a while, one goes astray. Mars. The shape in the picture is simply the indent made by the end of the cue (Berf Gooner…the quantidrolmon responsible for whacking Mars into it’s current orbit a few billion years back, had a cue with a somewhat damaged end).

Extraordinary claims require extraordinary evidence…you say!!! We have Mars (where else could it have come from?). We have this blatant geographic feature (an obvious pool-cue indentation). And we have innumerable gas clouds (quantidrolmon written all over them).

As for the quantidrolmon’s themselves? String theory and MWI…of course.

ETA: Anyone who takes this seriously will be assaulted with a live rubber chicken until sensible. This is, after all, the SMT forum.
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Old 13th August 2012, 03:14 AM   #6
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Side note: The official name given by the IAS for the structure is "Aeolis Mons". Then again, this is by the organization that allowed a weird-ass definition for "planet" such that Pluto isn't one, so what do they know...
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Old 13th August 2012, 03:24 AM   #7
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That's obviously the place where the Martians used to play giant games of ring toss.
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Old 13th August 2012, 04:11 AM   #8
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I think Gale Crater's just had a wardrobe malfunction.
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Old 13th August 2012, 04:47 AM   #9
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First thing that occurred to me was this http://www.dreamstime.com/royalty-fr...-image22031475
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Old 13th August 2012, 07:31 PM   #10
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I was thinking http://media.efluids.com/galleries/i...ial?medium=529

Same forces at work, only with a less viscous medium.
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Old 13th August 2012, 09:15 PM   #11
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I saw this explained once in relation to a large crater on the Moon. When an impactor of enough mass comes in it compacts and compresses rock most at the center of the impact, once the impactor has obliterated itself and a bunch of other stuff the rock under ground zero rebounds and tada...mountain in the center of the new crater.

-z
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Old 13th August 2012, 10:53 PM   #12
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Originally Posted by elgarak View Post
Then again, this is by the organization that allowed a weird-ass definition for "planet" such that Pluto isn't one, so what do they know...
Non sequitur par excellence.
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Old 14th August 2012, 05:23 AM   #13
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Originally Posted by elgarak View Post
Side note: The official name given by the IAS for the structure is "Aeolis Mons". Then again, this is by the organization that allowed a weird-ass definition for "planet" such that Pluto isn't one, so what do they know...
You are aware that Martian geography generally gets named in Latin? The larger region is named Aeolis planum - the plateau of Aeolia, after an ancient region in Anatolia. The mountain, therefore, is quite logically named Aeolis mons - the Aeolic mountain.
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