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Journey to Mt Sharp - Part 3: Cooperstown to Kimberley - Waypoint 3, Sol 453 [Nov14,'13] to 595 [Apr9,'14]
ngunn
post Mar 19 2014, 11:18 PM
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QUOTE (CosmicRocker @ Feb 19 2014, 04:38 AM) *
It certainly looks like an unconformity being exhumed at KMS-9, but it appears to me that it might be a disconformity rather than an angular unconformity. I suspect the striated unit may be largely flat-lying, but have significant erosional topography below the unconformity.


What do you make of it now we're here? To me it looks like the striated unit is dipping downward into the crater whilst the overlying rocks are more horizontal, but I'd like to hear ideas either way.
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Phil Stooke
post Mar 20 2014, 12:06 AM
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Wow, great site - so here's a circular version of Damia's new full panorama.

Phil

Attached Image


PS - just had the pleasure of meeting Fred Calef at LPSC, and I note that he just slipped in some new feature names between Darwin and Cooperstown in his map. Thanks, Fred!


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serpens
post Mar 20 2014, 05:19 AM
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QUOTE (ngunn @ Mar 20 2014, 12:18 AM) *
... To me it looks like the striated unit is dipping downward into the crater whilst the overlying rocks are more horizontal....


Indeed it does and it would be interesting to get one of the sedimentologist's take on this. Gale is old and Mount Sharp represents a heck of a mass, so I guess some local deformation and inwards inclination of initially planar beds could have occurred. On the other hand your description is not a bad generalisation of foreset and topset beds.
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neo56
post Mar 20 2014, 07:03 AM
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Mosaic of MastCam 34mm images taken on sol 574 (to be completed). Right: false colors and contrast stretched. What a promising outcrop!


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Ant103
post Mar 20 2014, 10:07 AM
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And my take :



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CosmicRocker
post Mar 20 2014, 05:04 PM
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QUOTE (ngunn @ Mar 19 2014, 06:18 PM) *
What do you make of it now we're here? To me it looks like the striated unit is dipping downward into the crater whilst the overlying rocks are more horizontal, but I'd like to hear ideas either way.

I didn't have time to look at the imagery last night, but I just looked at it now and I think you are right...the beds are clearly dipping. I began to suspect this after Emily posted her very helpful topographic map a while ago, but I wanted to see the ground truth before commenting. Good job, sir. smile.gif

I'm really looking forward to seeing a lot more of this interesting area. Hopefully we can figure out if this dip is deformational or depositional. It's unfortunate that just as we arrive at one of the most interesting places so far, we have these changes taking place in the file naming conventions that could throw at least a temporary monkey wrench into our most useful image viewing tools.


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walfy
post Mar 20 2014, 10:13 PM
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Threw together latest hazcam sequences:

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Phil Stooke
post Mar 21 2014, 12:52 AM
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News flash from LPSC - just saw a new HiRISE, not released yet, with Curiosity's tracks going through Dingo Gap. Cool.

Phil



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elakdawalla
post Mar 21 2014, 05:47 AM
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Yeah I saw that in Nathan Bridges' talk. It was totally beautiful. Taken in February sometime.

Also, I learned today (maybe we knew this before and I just didn't notice) that the RMI and M-100 images of the base of Mt Sharp are taken at Nathan Bridges' behest, in order to look for motion on the ripples atop the basaltic sand dunes. He said he had not seen any such motion yet. He said that the early M-100 images that they got of the base of the mountain that were lossless (sol 20-something) were terrific but that more-compressed images were a little harder to use to try to match ripple features. He said that he was advocating for more lossless M-100 images to try to image dune ripples to look for motion.


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machi
post Mar 21 2014, 11:23 AM
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These are really fantastic layered rocks. Thanks Thomas and Damia for your mosaics!


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dilo
post Mar 21 2014, 12:18 PM
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QUOTE (walfy @ Mar 20 2014, 11:13 PM) *
Threw together latest hazcam sequences:

Great 3D animation!
The Kimberley layers recalls me an ancient amphitheatre... rolleyes.gif


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neo56
post Mar 21 2014, 03:43 PM
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Mosaic made with Right NavCam. Nice view smile.gif


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James Sorenson
post Mar 21 2014, 04:37 PM
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Here is my version smile.gif
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Ant103
post Mar 21 2014, 06:23 PM
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Updated version of Sol 574 Navcam with Mount Sharp pics taken on Sol 576. Now it's a full pan smile.gif



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Ant103
post Mar 22 2014, 04:12 PM
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And how about in Postcard version ? ^^



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