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Re: Scientists confirm 500-mile finger of molten rock under Yellowstone

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avatar Scientists confirm 500-mile finger of molten rock under Yellowstone
December 12, 2009 04:33PM
Research has confirmed a 500-mile-deep magma plume under Yellowstone is slowly obliterating mountains in its path as it travels an inch a year to the northeast.

http://www.jhnewsandguide.com/article.php?art_id=5387
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avatar Re: Scientists confirm 500-mile finger of molten rock under Yellowstone
December 13, 2009 07:58AM
I got a kick out of movement of the Earth's mantle referred to as the "mantle wind".
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avatar Re: Scientists confirm 500-mile finger of molten rock under Yellowstone
December 13, 2009 10:52AM
The article doesn't really explain why the plume would consume mountains. If it produced surface eruptions, I would expect it to produce mountains as subsurface material is released at the crust. Perhaps it "melts" underlying rock structure and undermines the mountain structure or prevents upthrusting of rock strata.


The cure for a fallacious argument is a better argument, not the suppression of ideas.
-- Carl Sagan
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bpnjensen
Re: Scientists confirm 500-mile finger of molten rock under Yellowstone
December 14, 2009 01:26PM
Quote
tomdisco
I got a kick out of movement of the Earth's mantle referred to as the "mantle wind".

So whenever the caldera erupts, is it known as "Breaking wind"?

That Mantle, such an uncouth geologic feature...tongue sticking out smiley
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avatar Re: Scientists confirm 500-mile finger of molten rock under Yellowstone
December 14, 2009 03:31PM
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bpnjensen
So whenever the caldera erupts, is it known as "Breaking wind"?

I knew somebody would just have to...
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avatar Re: Scientists confirm 500-mile finger of molten rock under Yellowstone
December 14, 2009 03:42PM
This version is a bit better:

http://www.sciencedaily.com/releases/2009/12/091214075225.htm
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