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filthy
SFN Die Hard
USA
14408 Posts |
 Posted - 04/06/2009 : 12:56:57 [Permalink]
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Ok, one last "From Hell, I stab at thee!" It looks to be a sedimentary rock formation, possibly Cretaceous. formed by carbon dioxide laden (acid) water percolating through it. As to it's name, I couldn't say -- the image gives no context and searching for it without context is futile. I've tried.... 
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"What luck for rulers that men do not think." -- Adolf Hitler (1889 - 1945)
"If only we could impeach on the basis of criminal stupidity, 90% of the Rethuglicans and half of the Democrats would be thrown out of office." ~~ P.Z. Myres
"The default position of human nature is to punch the other guy in the face and take his stuff." ~~ Dude
Brother Boot Knife of Warm Humanitarianism,
and Crypto-Communist! 
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HalfMooner
Dingaling
Philippines
15831 Posts |
Posted - 04/06/2009 : 13:02:31 [Permalink]
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Originally posted by Simon
An impact crater?
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Likely so, is the new thinking, though it was for many years considered to have been an eroded salt dome. A small amount of shocked quartz has been found, giving some support to its being an impact crater.
But what's its name, and where is it?
Hint 3: The oldest strata exposed is Permian shale, overlain by Permian sandstone. Overlaying those are further Triassic and Triassic-Jurassic layers.
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“Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive. |
| Edited by - HalfMooner on 04/06/2009 13:42:56 |
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HalfMooner
Dingaling
Philippines
15831 Posts |
Posted - 04/06/2009 : 13:03:35 [Permalink]
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Originally posted by TG
Meteor Crater, Arizona?
What caused it ... fast moving space junk.
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Sorry, no, that's not the one. Correct cause, though, probably.
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“Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive. |
| Edited by - HalfMooner on 04/06/2009 13:16:27 |
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HalfMooner
Dingaling
Philippines
15831 Posts |
Posted - 04/06/2009 : 13:20:00 [Permalink]
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Originally posted by filthy
Prairie Chapel Ranch at Crawford, TX?
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The Phelpses are set to nuke that, but in 2011.
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“Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive. |
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filthy
SFN Die Hard
USA
14408 Posts |
Posted - 04/06/2009 : 13:28:39 [Permalink]
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Originally posted by HalfMooner
Originally posted by filthy
Prairie Chapel Ranch at Crawford, TX?
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The Phelpses are set to nuke that, but in 2011.
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Aha! Context at last! It's the Upheavel Dome formation at Canyonlands National Park.
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"What luck for rulers that men do not think." -- Adolf Hitler (1889 - 1945)
"If only we could impeach on the basis of criminal stupidity, 90% of the Rethuglicans and half of the Democrats would be thrown out of office." ~~ P.Z. Myres
"The default position of human nature is to punch the other guy in the face and take his stuff." ~~ Dude
Brother Boot Knife of Warm Humanitarianism,
and Crypto-Communist!
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| Edited by - filthy on 04/06/2009 13:35:42 |
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HalfMooner
Dingaling
Philippines
15831 Posts |
Posted - 04/06/2009 : 13:54:34 [Permalink]
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Originally posted by filthy
Originally posted by HalfMooner
Originally posted by filthy
Prairie Chapel Ranch at Crawford, TX?
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The Phelpses are set to nuke that, but in 2011.
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Aha! Context at last! It's the Upheavel Dome formation at Canyonlands National Park.
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Congratulations! Correct! 2/3 credit to Filthy for its name and location, 1/3 to TG for first correctly naming its likeliest cause!
"Upheaval Dome" Wiki article. (Note the deceptive name is based upon the old idea that it's a salt dome.)
This is quite an interesting impact crater, not least because most people are unaware of it. In Utah's Canyonlands National Park, it is older, and more eroded than Meteor Crater in Arizona. It also in the midst of some spectacular Coyote-and-Roadrunner country.
I suspect it will eventually be renamed Upheaval Crater, assuming the impact crater hypothesis dominates the debate about its origin.
Filthy, could you please explain how the strata (if it was that) helped you identify Upheaval Dome?
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“Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive. |
| Edited by - HalfMooner on 04/06/2009 14:29:08 |
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filthy
SFN Die Hard
USA
14408 Posts |
 Posted - 04/06/2009 : 14:30:06 [Permalink]
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This is not really in my field of expertise, if indeed I have a field of expertise, but, if I have it right, it was indeed a salt dome, possibly a leached-out one, that had the ill luck to get smacked by a meteor, size indeterminate. Salt domes are mostly found in sedimentary strata and the Upheaval Dome is the only one I know of in the US. A quick google confirmed it.
What do TG & me win? 
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"What luck for rulers that men do not think." -- Adolf Hitler (1889 - 1945)
"If only we could impeach on the basis of criminal stupidity, 90% of the Rethuglicans and half of the Democrats would be thrown out of office." ~~ P.Z. Myres
"The default position of human nature is to punch the other guy in the face and take his stuff." ~~ Dude
Brother Boot Knife of Warm Humanitarianism,
and Crypto-Communist!
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HalfMooner
Dingaling
Philippines
15831 Posts |
Posted - 04/06/2009 : 15:13:43 [Permalink]
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Originally posted by filthy
This is not really in my field of expertise, if indeed I have a field of expertise, but, if I have it right, it was indeed a salt dome, possibly a leached-out one, that had the ill luck to get smacked by a meteor, size indeterminate. Salt domes are mostly found in sedimentary strata and the Upheaval Dome is the only one I know of in the US. A quick google confirmed it.
What do TG & me win?
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You two win the undying gratitude of a curious world.
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“Biology is just physics that has begun to smell bad.” —HalfMooner
Here's a link to Moonscape News, and one to its Archive. |
| Edited by - HalfMooner on 04/06/2009 15:14:01 |
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What's its name? Where is it? How did it form?
