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Giant Magma Blobs Ripple Earth's Surface
LiveScience.com ^ | 6/29/10

Posted on 06/30/2010 9:00:24 AM PDT by NormsRevenge

Hot blobs of magma - the searing liquid rock beneath the Earth's crust - can spread slow-moving ripples that soar hundreds of meters high across the Earth's surface, a new study suggests.

This phenomenon, which works on geologic time scales, may explain relatively rapid pre-historical changes in sea level that occurred without the typical waxing and waning of the polar ice sheets, which hold and release water on scales of thousands and millions of years. This unexplained sea level rise is one of geology's oldest mysteries.

During the Paleogene era (65 million to 23 million years ago), the land under Scotland moved up and down like a geological yo-yo. The surface rippled up to 1,640 feet (500 meters) over the course of only a million years - a relatively short time span, geologically-speaking.

"It appears to be caused by something deep within the Earth, moving sideways - almost like rats running underneath a carpet," said study author Bryan Lovell of the University of Cambridge.

...

A magma hot spot beneath Iceland, known as the Iceland plume, which is responsible for the European island's volcanic activity, could be behind this movement.

Data from oil exploration near the Iceland magma plume has revealed that a blob in the Earth's flowing mantle caused a pulse beneath the North Atlantic about 55 million years ago. This pulse raised and lowered the land surface and the sea floor in a rippling effect

Although scientists were confident that hot blobs exist in the mantle, evidence for the ripples at the Earth's surface have been hard to spot. While the Scotland uplift is the only example of the hot blob effect, Lovell said the movement is a natural effect of mantle convection, so there's no reason to think it isn't happening all the time, even now.

(Excerpt) Read more at livescience.com ...


TOPICS: Chit/Chat; Science
KEYWORDS: blobs; catastrophism; earth; eocene; globalwarminghoax; iceland; magma; paleocene; petm; ripple
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1 posted on 06/30/2010 9:00:28 AM PDT by NormsRevenge
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To: NormsRevenge

2 posted on 06/30/2010 9:02:58 AM PDT by JoeProBono (A closed mouth gathers no feet - Visualize)
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To: SunkenCiv

/mark


3 posted on 06/30/2010 9:03:45 AM PDT by KoRn (Department of Homeland Security, Certified - "Right Wing Extremist")
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To: JoeProBono
"Hot, Liquid Mag-Ma"


4 posted on 06/30/2010 9:05:46 AM PDT by shibumi ((Topop Gigiop!!!!!))
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To: NormsRevenge
It's like a blind man can't see the sun shine.

We once thought we'd fall off the edge.

The next wake-up realization is ;

"Holy cheese & crackers, we're floatin' on little rafts of dirt on highly pressurized seas of oil and magma, ma!"

It's a good idea to leave the Deep Hot Biosphere(Thomas Gold) wells be to fill up and refill the shallow wells.

5 posted on 06/30/2010 9:07:51 AM PDT by norraad ("What light!">Blues Brothers)
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To: shibumi

6 posted on 06/30/2010 9:08:26 AM PDT by JoeProBono (A closed mouth gathers no feet - Visualize)
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To: NormsRevenge

It’s about time this real phenomenon be ventilated in the press as well as academia.

I wonder how long it will take for liberal Democrats and the white liberal guilt crowd to propose higher taxes to combat this new sinister force as well as to blame Western Civilization in general and America in particular for it’s underlying cause and continuing sustenance.

Paging Michael Mann (as in Mann made global warming).


7 posted on 06/30/2010 9:09:02 AM PDT by Mobties
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To: norraad

8 posted on 06/30/2010 9:10:48 AM PDT by JoeProBono (A closed mouth gathers no feet - Visualize)
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To: NormsRevenge

you meant the earth climate changes by itself? A self-regenerating earth? eeevil SVUs are just a speck of dust in the climate continuum?


9 posted on 06/30/2010 9:12:04 AM PDT by Ancient Drive (DRINK COFFEE! - Do Stupid Things Faster with More Energy!)
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To: NormsRevenge

Ladies and germs, MC-TD here spinning the platters that matter:
here’s the Hot Blobs of Magma with their big hit: `Lava Stinks (Yeah Yeah)!’


10 posted on 06/30/2010 9:13:36 AM PDT by tumblindice ("We are guardians of the taxpayers' money." Rep. Chris Carney, D-Pa, (presumably w/ a straight face)
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To: NormsRevenge
This is a fairly well-understood geological phenomenon. Some think the Marius Hills region of the moon is an example of this process "frozen in time" because the moon is not as geologically active as the Earth (although these could also be more conventional volcanic domes):


11 posted on 06/30/2010 9:15:13 AM PDT by chimera
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To: NormsRevenge

Horta?


12 posted on 06/30/2010 9:24:17 AM PDT by gundog (Outrage is anger taken by surprise. Nothing these people do surprises me anymore.)
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To: chimera
Say, is there a pick'tur somewhere of that car we left up there?

Someone needs to photo shop it w/a for sale sign on it!

13 posted on 06/30/2010 9:26:18 AM PDT by norraad ("What light!">Blues Brothers)
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To: Ancient Drive

Not only that, the magnetic pole has moved around a number of times.


14 posted on 06/30/2010 9:42:27 AM PDT by Eric in the Ozarks (Impeachment !)
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To: Eric in the Ozarks

dang... it even survived Asteroid and Meteorite impacts!


15 posted on 06/30/2010 9:46:01 AM PDT by Ancient Drive (DRINK COFFEE! - Do Stupid Things Faster with More Energy!)
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To: NormsRevenge

Huh. Wonder if the AGW scientists factored in for this when consider sea-level changes... P:


16 posted on 06/30/2010 9:47:10 AM PDT by unambiguouslogin
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To: NormsRevenge
Giant Magma Blobs Ripple Earth's Surface

Cr@p!! ANOTHER crisis for Obama to exploit!!!!

17 posted on 06/30/2010 10:42:48 AM PDT by DustyMoment
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To: Eric in the Ozarks

Excellent!


18 posted on 06/30/2010 5:20:28 PM PDT by SunkenCiv ("Fools learn from experience. I prefer to learn from the experience of others." -- Otto von Bismarck)
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To: norraad

:’)


19 posted on 06/30/2010 5:20:40 PM PDT by SunkenCiv ("Fools learn from experience. I prefer to learn from the experience of others." -- Otto von Bismarck)
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To: KoRn; 75thOVI; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...
Thanks KoRn!
...may explain relatively rapid pre-historical changes in sea level that occurred without the typical waxing and waning of the polar ice sheets, which hold and release water on scales of thousands and millions of years. This unexplained sea level rise is one of geology's oldest mysteries.
There are also subterranean seas, basically big caverns filled with huge amounts of water.
 
Catastrophism
 
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20 posted on 06/30/2010 5:22:57 PM PDT by SunkenCiv ("Fools learn from experience. I prefer to learn from the experience of others." -- Otto von Bismarck)
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