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Strange Rock
dilo
post Jul 24 2005, 03:05 AM
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I do not know if is Voltaire or another one, but the fractured rock Spirit is analyzing is pretty interesting...
First, there is a strange "extruded" portion, visible in the right/low region of this "crossed eyes" stereogram:

Herebelow, L257 PanCam image in the top portion; I highlighted in red the portion pictured with MI (lower mosaic):

Many interesting features, here. In addition to the sand filled fracture, there is a strange circular feature (enlarged in the small picture)... someone could see a biological fossil fingerprint in it ?... rolleyes.gif


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mike
post Aug 1 2005, 06:00 PM
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The key to a happy life is to always wear a tasty hat.
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RNeuhaus
post Aug 1 2005, 06:35 PM
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QUOTE (odave @ Aug 1 2005, 09:56 AM)
And here's a petrified artichoke

2P176073695ESFAD80P2591L2M1.JPG

Looks like we've stumbled onto the Husband Hill Deli...  smile.gif
*

It must be in a list of sample to be recolected by the next Earth-Mars return back mission. I cannot figure it out on how the nature has shaped it so look alike to artikoche, or previous lava flame which was cut when it is met by a very cold Martian weather.

Rodolfo
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ilbasso
post Aug 1 2005, 06:57 PM
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QUOTE (mike @ Aug 1 2005, 06:00 PM)
The key to a happy life is to always wear a tasty hat.
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And it's always better to eat a hat - no matter how tasty or not - than a mammoth turd.


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tedstryk
post Aug 2 2005, 03:50 AM
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QUOTE (Bill Harris @ Aug 1 2005, 03:49 AM)
I looked at his image in Reply#9 of this thread and it displays OK.

No ideas why you have probs.  What viewer/editor are you using to look at them?  Have you tried to download the image file as "Save target As...", instead of "Save Image"?

--Bill
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I have tried with Netscape and Internet explorer, and have tried downloading the images using "Save target as" as well as "save image." Nothing works.


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Decepticon
post Aug 2 2005, 03:56 AM
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QUOTE (odave @ Aug 1 2005, 10:56 AM)
And here's a petrified artichoke

2P176073695ESFAD80P2591L2M1.JPG

Looks like we've stumbled onto the Husband Hill Deli...  smile.gif
*


And mars still throws new stuff at us every day.

Amazing.
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deglr6328
post Aug 2 2005, 05:12 AM
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blink.gif Those do look bizzaro. Are we using the Moessbauer device anymore? From what I see, it used Co-57 with a 1/2 life of ~ 270 days. We've been roving around for over double that time and so we should now only have ~20% of the amount of radionuclide we had at landing. When does the spectrometer become unusable because the gamma signal is just too weak? Or can you just keep extending the integration times (well...nearly) indefinitely?
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mike
post Aug 2 2005, 05:41 AM
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It seems to me that at some point background radiation would introduce noticeable noise and thus errors.. when this happens I know not. And regardless of that, there has to come a point when the integration would take so long as to be unfeasible, and even beyond that, surely there is a point at which the cobalt simply has lost so much radioactive magic that the sensor will never sense anything.
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Trader
post Aug 5 2005, 02:38 PM
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Does this shot not excite anyone??:

http://marsrovers.jpl.nasa.gov/gallery/all...92P2957M2M1.JPG

Not just the shape and surface; but also, the edge at lower right?? Numerous other shots of the same and similarly interesting objects in the area.

Trader
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tty
post Aug 5 2005, 06:53 PM
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QUOTE (Trader @ Aug 5 2005, 04:38 PM)
Does this shot not excite anyone??:

http://marsrovers.jpl.nasa.gov/gallery/all...92P2957M2M1.JPG

Not just the shape and surface; but also, the edge at lower right??  Numerous other shots of the same and similarly interesting objects in the area.

Trader
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Looks like a ventifact. It is faceted and has that odd "silky" texture that wind-sculpted rocks have.

tty
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Gray
post Aug 5 2005, 07:02 PM
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It looks like a ventifact to me too. Is it a ventifact embedded in the matrix of the ignimbrite? Or is it a volcanic clast that was faceted by wind abrasion after the entire rock was exposed at the surface?
Or none of the above?
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Reckless
post Aug 5 2005, 07:41 PM
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QUOTE (Gray @ Aug 5 2005, 08:02 PM)
It looks like a ventifact to me too.  Is it a ventifact embedded in the matrix of the ignimbrite?  Or is it a volcanic clast that was faceted by wind abrasion after the entire rock was exposed at the surface?
Or none of the above?
*

My impression is the rock is an ignimbrite but the clast was faceted by the wind and then included into the rock perhaps by a second partial melting event. I don't know how this could happen pehaps as a result of more than one impact, one to move the wind abraded rock (basalt) to the vicinity of the ignimbrite the second to heat and merge the two?

Roy F
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