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Concepción, The freshest crater yet to be explored
Stu
post Feb 19 2010, 11:18 PM
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Rather nice new view of the Choc Hills...

Attached Image


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nprev
post Feb 19 2010, 11:41 PM
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ohmy.gif ...damn!!! Did not realize quite how fine the layering really is till this image; really amazing work, Stu!


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Stu
post Feb 19 2010, 11:54 PM
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Well, if you liked that you're gonna love this... laugh.gif

http://twitpic.com/147bb1/full


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Juramike
post Feb 20 2010, 12:22 AM
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Hah! I like that little rock behind Chocolate Hills!

It looks like some kinda blueberry Chia Pet!!

laugh.gif laugh.gif laugh.gif


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eoincampbell
post Feb 20 2010, 05:05 AM
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That's a smashing view, Stu,
Would the "blue stuff" on the floor be ruled out as impactor material now, given the recent consensus on the crusty stuff atop choc. hills ?
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fredk
post Feb 20 2010, 08:59 PM
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I haven't heard about a consensus on the crust yet...
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James Sorenson
post Feb 20 2010, 10:44 PM
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The crust and the blueberry's seem to have the same color, maybe its Hematite??
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CosmicRocker
post Feb 21 2010, 07:22 AM
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I hadn't heard of a consensus on the rind/crust either. Superficially it resembles the rinds seen a while back on a target called "Lemonrind." Lemonrind was later described as having a composition similar to the bedrock. This crust also resembles the fracture fillings seen in Endurance Crater at a target called "razorback." Neither of the previous rinds or crusts contained concentrations of cemented blueberries as these rinds at at Chocolate Hills do. Recall the Microscopic Imager pictures.

With so many concretions in the rind we might expect it to contain a lot of hematite. Attached is a right-filter, false color image from sol 2147 of the rind that should display hematite in a yellow color. It appears that much of the rind is composed of hematite, even the parts that do not display obvious spherules.

Attached Image


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Stu
post Feb 21 2010, 08:53 AM
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Couple of interesting rocks in a new image...

Look at that very sharp little guy up there, top left...

Attached Image


And this rock is just... odd...

Attached Image


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Marz
post Feb 21 2010, 07:12 PM
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QUOTE (Stu @ Feb 21 2010, 02:53 AM) *
Couple of interesting rocks in a new image...


Thanks, Stu!

Is that an inclusion in the flat-top rock in the middle of the image, or is it a rind-fragment?
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Tesheiner
post Feb 21 2010, 08:50 PM
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Today, sol 2161, it was time to say good bye to Chocolate Hills. Opportunity has started driving CW around Concepción.
Navcams: http://qt.exploratorium.edu/mars/opportuni...cam/2010-02-21/
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fredk
post Feb 21 2010, 09:23 PM
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Navcam anaglyph of the new view of Concepcion:
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Tesheiner
post Feb 21 2010, 10:45 PM
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Here's sol 2161 navcam mosaic, pointing due south and showing the "ejecta ray" in the foreground.
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Stu
post Feb 21 2010, 11:11 PM
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I know James and Ant will do much better when they get to work on them, but I had a go at stitching together the beautiful pancams that popped up on Exploratorium today, and I'm really chuffed with how it turned out... http://twitpic.com/14me2r/full

Some of the "highlights"...
Attached Image
Attached Image

Attached Image


If the member of the MER team who decided to head for Concepcion is reading this - THANK YOU! I love this place! smile.gif


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fredk
post Feb 22 2010, 09:00 PM
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The latest downlink includes a lovely L6 horizon sequence of our eventual destination:
http://qt.exploratorium.edu/mars/opportuni...CXP2378L6M1.JPG
I wonder if there are more filters to come...
Edit: Oops, should've posted in the Distant Vistas thread...
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