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The power of HiRISE
sgendreau
post Oct 11 2009, 04:05 PM
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QUOTE (Stu @ Sep 30 2009, 04:08 PM) *
Colourised crop from one of today's HiRISE releases...

http://twitpic.com/jrojd/full

smile.gif



Any geological types want to hazard a guess what this is? Crater with multiple rims, maybe? (I'm not good at whether a feature is an innie or an outie.)
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centsworth_II
post Oct 11 2009, 06:15 PM
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QUOTE (stevesliva @ Oct 11 2009, 10:34 AM) *
I love the combination of slope streaks and dustdevil tracks! It's a smoking gun of sorts.

The smoking gun of coincidence! laugh.gif
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volcanopele
post Oct 11 2009, 06:19 PM
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QUOTE (sgendreau @ Oct 11 2009, 09:05 AM) *
Any geological types want to hazard a guess what this is? Crater with multiple rims, maybe? (I'm not good at whether a feature is an innie or an outie.)

hmm, looks like craters that's been eroded down to their "cores". The boulders could be megabrecia.

alternatively, could be eroded, heavily jointed basalt... In which case you are looking at the tops of plutonic dikes.

Either way, lots of erosion.


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stevesliva
post Oct 11 2009, 09:28 PM
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QUOTE (centsworth_II @ Oct 11 2009, 02:15 PM) *
The smoking gun of coincidence! laugh.gif


Not so much. I meant the DD tracks are second very visual indication that a lot of dust moves around in the atmosphere, and dust avalanches can occur when things get past the angle of repose.
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climber
post Oct 15 2009, 08:27 PM
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What about this one?
Attached Image


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ElkGroveDan
post Oct 15 2009, 08:38 PM
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That is amazing. It looks like a blanket with an artistic pattern.


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Phil Stooke
post Oct 15 2009, 09:23 PM
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This is where we need the guy who says 'Zis is not nuts, zis is super-nuts!'

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Greg Hullender
post Oct 15 2009, 10:34 PM
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My gosh! At first I thought it was a joke picture of someone's tattoo. Where/what is it?

--Greg
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Phil Stooke
post Oct 15 2009, 10:38 PM
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Not a bad idea... I think I will get that tattooed on me.

Phil


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infocat13
post Oct 16 2009, 12:31 AM
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are the dunes in valleys?
are the surrounding terrain hills?
and mars has a thin atmosphere
do the wind cyclones die as they leave the valley and terminate at the tops of the hills?
of course the counter argument is on earth the valleys would be cold at there floors this must not be the mechanism on mars for energy for a cyclone or tornado.
tornadoes on mars must be driven differently then on earth
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Astro0
post Oct 16 2009, 12:42 AM
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Where/what is it?


Check it out here.
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nprev
post Oct 16 2009, 12:57 AM
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This one just gets more fascinating every time I look at it; definitely one of HiRISE's Top 10 most beautiful & intriguing images!


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Stu
post Oct 16 2009, 11:38 PM
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(Looking at LROC image...)

Call that a bouncing boulder? THIS is a bouncing boulder..!

http://twitpic.com/lsry0

http://twitpic.com/lss3l

laugh.gif

(from HiRISE image ESP_01439_2045)


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nprev
post Oct 17 2009, 02:16 AM
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blink.gif ...holy [clinking] [clink!!!!] Can't believe what I'm looking at here, Stu, what a find!


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elakdawalla
post Oct 17 2009, 03:59 AM
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QUOTE (Stu @ Oct 16 2009, 04:38 PM) *
(from HiRISE image ESP_01439_2045)

Stu, that's not resolving; can you check your source? I think there should be six digits in the first cluster of numbers.


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