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Researchers ID unique geological 'sombrero' uplift in South America (Ruh-Roh!)
http://phys.org ^ | 10-11-12 | Provided by University of California - San Diego

Posted on 10/11/2012 1:43:04 PM PDT by Red Badger

(Phys.org)—Scientists at Scripps Institution of Oceanography at UC San Diego have used 20 years of satellite data to reveal a geological oddity unlike any seen on Earth.

At the border of Argentina, Bolivia and Chile sits the Altiplano-Puna plateau in the central Andes region, home to the largest active magma body in Earth's continental crust and known for a long history of massive volcanic eruptions. A study led by Yuri Fialko of Scripps and Jill Pearse of the Alberta Geological Survey has revealed that magma is forming a big blob in the middle of the crust, pushing up the earth's surface across an area 100 kilometers (62 miles) wide, while the surrounding area sinks, leading to a unique geological phenomenon in the shape of a Mexican hat that the researchers have described as the "sombrero uplift." Since the magma motion is happening at a great depth and at a fairly slow rate—the earth's surface rises at about a centimeter per year or roughly the rate fingernails grow—there is no immediate danger of a volcanic outpouring, the researchers said. The details of the study, which was funded by the National Science Foundation, are published in the October 12 issue of the journal Science.

"It's a subtle motion, pushing up little by little every day, but it's this persistence that makes this uplift unusual. Most other magmatic systems that we know about show episodes of inflation and deflation," said Fialko, a professor of geophysics in the Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics at Scripps.

The researchers have attributed the observed steady motion and sombrero-shaped deflection of the earth's surface to a large blob of magma, called a "diapir" in geological terms, forming on top of the Altiplano-Puna magma body. Diapirs have been studied using geologic records in rocks frozen many millions of years ago, but the new study is the first to identify an active magma diapir rising through the crust at present day.

Fialko said a similar uplift phenomenon is occurring near Socorro, New Mexico, but at a much lower rate.

A numerical model used to investigate a ballooning diapir in the earth's crust. Colors denote temperature. "Satellite data and computer models allowed us to make the important link between what's observed at the surface and what's happening with the magma body at depth," said Fialko. Fialko said the sombrero uplift could provide insights into the initial stages of massive magmatic events leading to the formation of large calderas. Such "super-volcano" events erupt thousands of cubic kilometers of magma into the atmosphere and can affect local and global climates.

Compared with the Icelandic volcano eruption in 2011 that spewed large amounts of ash into the atmosphere and disrupted global air travel, Fialko said, a super-volcano event would be thousands of times greater. "Those were truly disaster-type events," said Fialko. "Fortunately such events haven't happened in human history, but we know they did happen in the Altiplano-Puna area in the past."

Journal reference: Science

Provided by University of California - San Diego


TOPICS: Miscellaneous
KEYWORDS: catastrophism; geology; volcano

The sombrero uplift (red center) is located in the middle of an active magma system (red border).

A numerical model used to investigate a ballooning diapir in the earth's crust. Colors denote temperature.

1 posted on 10/11/2012 1:43:13 PM PDT by Red Badger
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To: Red Badger

Bush’s fault.


2 posted on 10/11/2012 1:44:52 PM PDT by Doctor 2Brains (If the government were Paris Hilton, it could not score a free drink in a bar full of lonely sailors)
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To: Red Badger

When the lid blows: We don’t have ANY money for you, we’re already broke.


3 posted on 10/11/2012 1:49:42 PM PDT by The Sons of Liberty ("Get that evil, foreign, muslim, usurping, gay bastard out of MY White House!" FUBO!)
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To: Doctor 2Brains

We should start immediately sending money to algore to keep this from getting out of hand.


4 posted on 10/11/2012 1:50:24 PM PDT by RobinOfKingston (The instinct toward liberalism is located in the part of the brain called the rectal lobe.)
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To: The Sons of Liberty

When the lid blows, I hope the aim is good. Chavez, Hezbollah and all kinds oof warts can be rubbed out.


5 posted on 10/11/2012 1:52:24 PM PDT by Hardraade (http://junipersec.wordpress.com (I will fear no muslim))
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To: Doctor 2Brains

Sort of like studying when the Sun is going to explode into a dwarf star. I wonder if the grant money was tied to AGW.


6 posted on 10/11/2012 1:52:35 PM PDT by spawn44 (MOO)
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To: The Sons of Liberty

Volcano
Songwriters: J. BUFFETT, K. SYKES, H. DAILEY
1979

Chorus:
Now i don’t know
I don’t know
I don’t know where i’m a gonna go
When the volcano blow

Chorus:
Let me say now i don’t know
I don’t know
I don’t know where i’m a gonna go
When the volcano blow

Ground she’s movin’ under me
Tidal waves out on the sea
Sulphur smoke up in the sky
Pretty soon we learn to fly

Chorus:
Let me hear ya now i don’t know
I don’t know
I don’t know where i’m a gonna go
When the volcano blow

Now my girl quickly say to me
Mon you better watch your feet
Lava come down soft and hot
You better lava me now or lava me not

Chorus:
Let me say now i don’t know
I don’t know
I don’t know where i’m a gonna go
When the volcano blow

— spoken: “mr utley...”

No time to count what i’m worth
‘cause i just left the planet earth
Where i go i hope there’s rum
Not to worry mon soon come

Chorus:
Now i don’t know
I don’t know
I don’t know where i’m a gonna go
When the volcano blow

Chorus:
One more now i don’t know (ah he don’t know)
I don’t know (he don’t know, mon)
I don’t know where i’m a gonna go
When the volcano blow

But i don’t want to land in new york city
Don’t want to land in mexico (no no no)
Don’t want to land on no three mile island
Don’t want to see my skin aglow (no no no)

Don’t want to land in commanche sky park
Or in nashville, tennessee (no no no)
Don’t want to land in no san juan airport
Or the yukon territory (no no no)

Don’t want to land no san diego
Don’t want to land in no buzzards bay (no no no)
Don’t want to land on no ayotollah
I got nothing more to say

Chorus:
I don’t know
I don’t know
I don’t know where i’m a gonna go
When the volcano blow

Chorus:
Just a one more, i don’t know (he don’t know)
I don’t know (i don’t know, man)
I don’t know where i’m a gonna go
When the volcano blow


7 posted on 10/11/2012 1:54:16 PM PDT by Red Badger (Is it just me, or is Hillary! starting to look like Benjamin Franklin?.................)
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To: Red Badger

The blob is called a diapir.

They couldn’t have found a better word for it, or just used blob? They had to have a scientific term?


8 posted on 10/11/2012 1:54:16 PM PDT by wastedyears (The First Law of Heavy Metal: Not all metal is satanic.)
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To: Red Badger

Uh oh. Ballooning diapers are never good.


9 posted on 10/11/2012 1:54:33 PM PDT by Hardraade (http://junipersec.wordpress.com (I will fear no muslim))
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To: wastedyears

It’s called a ‘diapir’ for when the SHTF.........


10 posted on 10/11/2012 1:55:42 PM PDT by Red Badger (Is it just me, or is Hillary! starting to look like Benjamin Franklin?.................)
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To: Red Badger

Isn’t that area known as a hotbed of islamic activity?


11 posted on 10/11/2012 1:56:23 PM PDT by fso301
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To: RobinOfKingston

We should locate the leak and stuff algore in it. A wooden plug might hold it for a few years.


12 posted on 10/11/2012 1:56:46 PM PDT by Hardraade (http://junipersec.wordpress.com (I will fear no muslim))
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To: fso301

No, just a hot bed...........


13 posted on 10/11/2012 1:57:13 PM PDT by Red Badger (Is it just me, or is Hillary! starting to look like Benjamin Franklin?.................)
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To: spawn44

I think the leading hypothesis on the sun is that its shell is going to expand out to the orbit of at least the first asteroid belt; maybe out to the orbit of Jupiter. Then it will collapse into a red dwarf after having vaporized Mercury, Venus, Earth, Mars, and the asteroid belt. Then it will remain like that for billions of years until it cools, finally turning into a dark mass of what was formerly a life-giving star.

It’s not big enough to go nova.


14 posted on 10/11/2012 1:58:31 PM PDT by wastedyears (The First Law of Heavy Metal: Not all metal is satanic.)
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To: Red Badger

That is just racist, amigo


15 posted on 10/11/2012 2:00:20 PM PDT by GeronL (http://asspos.blogspot.com)
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To: SunkenCiv

Ping?...........


16 posted on 10/11/2012 2:00:52 PM PDT by Red Badger (Is it just me, or is Hillary! starting to look like Benjamin Franklin?.................)
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To: GeronL

It looks like a risen getting ready to pop...........


17 posted on 10/11/2012 2:02:58 PM PDT by Red Badger (Is it just me, or is Hillary! starting to look like Benjamin Franklin?.................)
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To: Hardraade

“Uh oh. Ballooning diapers are never good.”

Typically a sign of a massive eruption.


18 posted on 10/11/2012 2:03:33 PM PDT by Rebelbase (The most transparent administration ever is clear as mud.)
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To: The Sons of Liberty

In an event of the size it will be, the whole world will be doomed


19 posted on 10/11/2012 2:04:00 PM PDT by bert ((K.E. N.P. N.C. +12 ..... Present failure and impending death yield irrational action))
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To: Red Badger
a unique geological phenomenon in the shape of a Mexican hat that the researchers have described as the "sombrero uplift"

Photobucket

20 posted on 10/11/2012 2:05:46 PM PDT by lonevoice (Today I broke my personal record for most consecutive days lived)
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To: Red Badger; SunkenCiv

Geography pops are not good


21 posted on 10/11/2012 2:07:06 PM PDT by GeronL (http://asspos.blogspot.com)
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To: Hardraade
When the lid blows, I hope the aim is good. Chavez, Hezbollah and all kinds oof warts can be rubbed out.

And we can always hope for the Soccoro uplift to angle the blow toward Santa Fe, Rio Arriba and Taos.

22 posted on 10/11/2012 2:07:16 PM PDT by elkfersupper ( Member of the Original Defiant Class)
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To: bert

It’s not predicted for around December 21st at 11:11 PM is it?


23 posted on 10/11/2012 2:07:16 PM PDT by The Sons of Liberty ("Get that evil, foreign, muslim, usurping, gay bastard out of MY White House!" FUBO!)
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To: fso301

You’re thinking of the Muslim Triangle where Argentina, Brazil and Paraguay join. It’s 2/3 of the way across the continent to the east of this giant diaper.


24 posted on 10/11/2012 2:07:37 PM PDT by Rebelbase (The most transparent administration ever is clear as mud.)
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To: Red Badger

Send a woman there. We know what to do with diapers.


25 posted on 10/11/2012 2:08:08 PM PDT by trisham (Zen is not easy. It takes effort to attain nothingness. And then what do you have? Bupkis.)
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To: Red Badger

Altiplano becomes Alti-Volcano in one big bang....


26 posted on 10/11/2012 2:10:03 PM PDT by GeronL (http://asspos.blogspot.com)
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To: Rebelbase

is it really called a diaper?

lolz


27 posted on 10/11/2012 2:12:11 PM PDT by GeronL (http://asspos.blogspot.com)
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To: Red Badger

I don’t like to panic anyone... but I had a dream a few weeks ago about massive ruptures in the earth spewing lava.

It was disturbing and I thought it was really weird at the time.

But then I forgot about it.


28 posted on 10/11/2012 2:14:24 PM PDT by Berlin_Freeper (Winning is Everything.)
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To: trisham

We were eating with our daughter and 2 1/2 year old grandson in a Chinese restaurant last weekend when his diaper suddenly got overloaded. She grabbed him and ran outside to change him and then was too embarrassed to come back in........


29 posted on 10/11/2012 2:14:54 PM PDT by Red Badger (Is it just me, or is Hillary! starting to look like Benjamin Franklin?.................)
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To: Berlin_Freeper

December 21, 2012...........or is it the 22nd?............


30 posted on 10/11/2012 2:15:52 PM PDT by Red Badger (Is it just me, or is Hillary! starting to look like Benjamin Franklin?.................)
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To: Red Badger
I've remember reading about this, and examining the physical location. It's a remarkably small area, though there are other much, much larger anomalies south of the equator along the long axis of South America. The relatively new rise and active condition of the Andes, themselves, of course... tied together and looking like the stitching on a baseball, when you count all the Americas, including Antarctica.

Look on NASA orbital schematics and you will see outlined over SE S.A. and the South Atlantic something called "SAA," the South Atlantic Anomaly, where Earth's blessed magnetic field lines strangely dip in altitude for no known reason.

The described phenomena might be a deep hot spot, a column of magma slipping under S.A. like Yellowstone or Hawai'i.

31 posted on 10/11/2012 2:28:22 PM PDT by Prospero
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To: Red Badger

Oh, no! She was probably so glad to be going out to dinner, too!


32 posted on 10/11/2012 2:29:38 PM PDT by trisham (Zen is not easy. It takes effort to attain nothingness. And then what do you have? Bupkis.)
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To: Red Badger

Eet eez a beeg zeet!


33 posted on 10/11/2012 2:29:58 PM PDT by Right Wing Assault (Dick Obama is more inexperienced now than he was before he was elected.)
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To: Red Badger
December 21, 2012...........or is it the 22nd?............

12/21, 12/22, whatever it takes...

34 posted on 10/11/2012 2:31:42 PM PDT by IYAS9YAS (Rose, there's a Messerschmitt in the kitchen. Clean it up, will ya?)
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To: lonevoice

Too funny!


35 posted on 10/11/2012 2:31:42 PM PDT by Jane Long (Soli Deo Gloria!)
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To: Red Badger

A planetary zit!!


36 posted on 10/11/2012 2:52:29 PM PDT by SgtHooper (The last thing I want to do is hurt you. But it's still on the list.)
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To: GeronL

Nah, we were funnin’ on the correct term that is diapir.


37 posted on 10/11/2012 2:52:51 PM PDT by Rebelbase (The most transparent administration ever is clear as mud.)
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To: Red Badger; Errant; machogirl

enjoy..

Yuri’s animation of the bulge...lol

http://www.eurekalert.org/multimedia/pub/48653.php


38 posted on 10/11/2012 3:20:02 PM PDT by winoneforthegipper ("If you can't ride two horses at once, you probably shouldn't be in the circus" - SP)
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To: winoneforthegipper

lol (at the sombrero) my sombrero was black, with rhinestones.


39 posted on 10/11/2012 4:35:19 PM PDT by machogirl (First they came for my tagline)
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To: Red Badger; GeronL; 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; ...
Thanks Red Badger and GeronL.



40 posted on 10/11/2012 5:17:23 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

Nuts...and I was thinking of moving to Chili....


41 posted on 10/11/2012 5:21:42 PM PDT by BenLurkin (This is not a statement of fact. It is either opinion or satire; or both)
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To: Prospero; SunkenCiv; Red Badger; All

There was one anomaly in the article. The writer says nothing of this magnitude has occurred in human history. Actually, he should have said historical times, because the great Toba Megavolcano, which left a caldera 18 by 65 miles was about 73,000 years ago, definitely after homo sapiens had developed, causing a sharp reduction in available genetic material. Some scientists suggest that humans were reduced to no more than 5 or 10 thousand individuals by multiple years of “nuclear winter”.


42 posted on 10/11/2012 10:28:11 PM PDT by gleeaikin
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To: gleeaikin

There’s no way to know about any reduction or ‘bottleneck’, that’s merest speculation. A volcano is a pimple on the planet’s derriere’ compared with a bolide. (nyah nyah) ;’)


43 posted on 10/12/2012 3:11:34 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: BenLurkin

I could live on their baby back ribs.


44 posted on 10/12/2012 3:18:07 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: Rebelbase
You’re thinking of the Muslim Triangle where Argentina, Brazil and Paraguay join. It’s 2/3 of the way across the continent to the east of this giant diaper.

Thanks.

45 posted on 10/12/2012 3:37:15 AM PDT by fso301
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To: SunkenCiv; All

A boloid can do much more harm if big enough. The Chesapeake meteor of 34 million years ago left a crater about 60 miles in diameter and resulted in a number of extinctions. However, Toba left a crater 18 miles by 65 miles, and that is a rather large carbuncle not just a pimple. The “speculation” is based on some detailed DNA analysis not just speculation, although I have also heard that it may have been something at least 125,000 years ago that caused the “bottleneck”.


46 posted on 10/12/2012 10:40:42 PM PDT by gleeaikin
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To: gleeaikin

It’s speculation because there’s no actual data, just estimates as to the rate of change from a hypothetical beginning point — so there is no real data of any bottleneck, either 70K or 125K years ago.


47 posted on 10/13/2012 4:50:54 PM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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