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New 'Embryonic' Subduction Zone Found
Science Daily ^ | 06/17/13 | staff

Posted on 06/18/2013 4:49:06 PM PDT by winoneforthegipper

une 17, 2013 — A new subduction zone forming off the coast of Portugal heralds the beginning of a cycle that will see the Atlantic Ocean close as continental Europe moves closer to America. Share This:

143 Published in Geology, new research led by Monash University geologists has detected the first evidence that a passive margin in the Atlantic ocean is becoming active. Subduction zones, such as the one beginning near Iberia, are areas where one of the tectonic plates that cover Earth's surface dives beneath another plate into the mantle -- the layer just below the crust. Lead author Dr João Duarte, from the School of Geosciences said the team mapped the ocean floor and found it was beginning to fracture, indicating tectonic activity around the apparently passive South West Iberia plate margin. "What we have detected is the very beginnings of an active margin -- it's like an embryonic subduction zone," Dr Duarte said. "Significant earthquake activity, including the 1755 quake which devastated Lisbon, indicated that there might be convergent tectonic movement in the area. For the first time, we have been able to provide not only evidences that this is indeed the case, but also a consistent driving mechanism." The incipient subduction in the Iberian zone could signal the start of a new phase of the Wilson Cycle -- where plate movements break up supercontinents, like Pangaea, and open oceans, stabilise and then form new subduction zones which close the oceans and bring the scattered continents back together.

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


TOPICS: Science
KEYWORDS: catastrophism; earthquake; tectonics
Geologically speaking well worth the read...
1 posted on 06/18/2013 4:49:06 PM PDT by winoneforthegipper
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To: Errant

Interesting, no?


2 posted on 06/18/2013 4:49:32 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
... as continental Europe moves closer to America.

Oh great.

3 posted on 06/18/2013 4:50:53 PM PDT by rickmichaels
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To: rickmichaels

ROFLMAO!!!


4 posted on 06/18/2013 4:52:13 PM PDT by doc1019 (There is absolutely no difference between pro-choice and pro-abortion.)
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To: rickmichaels
... as continental Europe moves closer to America.

Then we will be Eurerica persons. Or Americope. Or Amerirope? I'm sure Dear Leader will come up with something.

5 posted on 06/18/2013 4:56:01 PM PDT by PistolPaknMama
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To: rickmichaels

Expands the definition of Doom eh?


6 posted on 06/18/2013 4:58:10 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: SunkenCiv

People who love when rocks move ping.


7 posted on 06/18/2013 5:06:06 PM PDT by Explorer89 (And now, let the wild rumpus start!!)
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To: winoneforthegipper

Embryonic subduction zone?

Obama will just have it aborted....


8 posted on 06/18/2013 5:09:15 PM PDT by Hardraade (http://junipersec.wordpress.com (Obama equals Osama))
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To: PistolPaknMama

You mean like IsraTine?


9 posted on 06/18/2013 5:11:05 PM PDT by Hardraade (http://junipersec.wordpress.com (Obama equals Osama))
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To: winoneforthegipper
The Iberian subduction will gradually pull Iberia towards the United States over approximately 220 million years.

"I don't want no damn white Eur-o-pee-ans comin' over and messin' with what Barack's gettin' done here! For the first time, I'm proud of this country!"


10 posted on 06/18/2013 5:15:55 PM PDT by COBOL2Java (I'm a christian, pro-life, pro-gun, Reaganite. The GOP hates me. Why should I vote for them?)
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To: COBOL2Java

Chewbacca! You got to love that guy!


11 posted on 06/18/2013 5:21:52 PM PDT by PistolPaknMama
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To: winoneforthegipper

Doesn’t that also mean that there is another plate, probably in the Pacific, that is being pulled apart??

Maybe off the west coast??


12 posted on 06/18/2013 5:27:52 PM PDT by Noob1999 (Loose Lips, Sink Ships)
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To: winoneforthegipper
As Global Warming loses its cachet and is discredited will this be the new sky-is-falling hysteria? It would be an interesting one, and based on something that is probably really true and will severely affect coastal environment in only a few hundred million years. If we don't prepare it will suddenly be upon us and we will all get crushed!
13 posted on 06/18/2013 5:28:02 PM PDT by arthurus (Read Hazlitt's Economiws In One Lesson ONLINE http://steshaw.org/econohttp://www.fee.org/library/det)
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To: arthurus

Very good point and likely correct.


14 posted on 06/18/2013 5:30:46 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: Noob1999

Agreed...! As a subduction zones eats somewhere it has to...well u know....lol


15 posted on 06/18/2013 5:33:46 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: Explorer89; SunkenCiv

I love it when SC posts that burning catastrophism logo.


16 posted on 06/18/2013 5:37:24 PM PDT by Pharmboy (Democrats lie because they must.)
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To: winoneforthegipper

TECTONIC ACTIVITY NOW!

REUNITE LAURASIA!


17 posted on 06/18/2013 5:46:43 PM PDT by Axenolith (Government blows, and that which governs least, blows least...)
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To: winoneforthegipper

Great Lisbon Earthquake of 1755

Described by Voltaire in CANDIDE


18 posted on 06/18/2013 5:56:16 PM PDT by njslim (St)
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To: Hardraade

Are you still counting?


19 posted on 06/18/2013 5:59:34 PM PDT by MestaMachine (My caps work. You gotta earn them.)
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To: winoneforthegipper

“... as continental Europe moves closer to America.”

Better hang a few boat bumpers off the coast.


20 posted on 06/18/2013 6:01:55 PM PDT by headstamp 2 (What would Scooby do?)
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To: Axenolith
REUNITE LAURASIA!

How does that old song go?

"Tell Laurasia I love her...."

21 posted on 06/18/2013 6:12:45 PM PDT by 17th Miss Regt
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To: arthurus

Maybe what we need is a sea level canal in Nicaragua
to let the two oceans reach equalibrum, kind of balance
things out.

No wonder Spain’s economy is tanking, it’s being
subducted.


22 posted on 06/18/2013 6:17:01 PM PDT by tet68 ( " We would not die in that man's company, that fears his fellowship to die with us...." Henry V.)
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To: winoneforthegipper

Wonder if this will affect the volcanic rift in one of the Canary Island chain. Could have a really nasty outcome.


23 posted on 06/18/2013 6:22:12 PM PDT by ping jockey (IT IS IMPORTANT TO ME YOU GREASY,HAIRY ARMPIT,HIPPIE.)
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To: COBOL2Java

I am not an easily startled person but you got post a warning on this one. I going to have to medicate myself to sleep now.


24 posted on 06/18/2013 6:23:37 PM PDT by ping jockey (IT IS IMPORTANT TO ME YOU GREASY,HAIRY ARMPIT,HIPPIE.)
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To: Noob1999

there are central ridges in both the Atlantic and Pacific basins that are opening, belching lava and in a constant state of flux. Really noisy stuff too.


25 posted on 06/18/2013 6:25:39 PM PDT by ping jockey (IT IS IMPORTANT TO ME YOU GREASY,HAIRY ARMPIT,HIPPIE.)
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To: winoneforthegipper

Wouldn’t a subduction zone be the best place to dispose of nuclear waste? How long does it take for subducted rock to be recycled back to the surface of the Earth?


26 posted on 06/18/2013 6:30:53 PM PDT by rottndog ('Live Free Or Die' Ain't just words on a bumber sticker...or a tagline.)
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To: Explorer89; Pharmboy; 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; ...

Thanks Explorer89 and Pharmboy.


27 posted on 06/18/2013 6:56:37 PM PDT by SunkenCiv (McCain or Romney would have been worse, if you're a dumb ass.)
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To: winoneforthegipper
The Iberian subduction will gradually pull Iberia towards the United States over approximately 220 million years.

Where will the volcanoes form?
Iberia will be sliding under the North American Plate?
How will this effect the Mid Atlantic spreading?

28 posted on 06/18/2013 7:58:15 PM PDT by Mike Darancette (Obama Leadership: Present)
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To: winoneforthegipper
Interesting

Yep, :) It's happening, and a lot faster than they're letting on...

29 posted on 06/18/2013 8:20:36 PM PDT by Errant
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To: 17th Miss Regt

Is Laurasia kin to Le-a? (da dash not be silent!) 08^)


30 posted on 06/18/2013 10:46:55 PM PDT by Cvengr (Adversity in life and death is inevitable. Thru faith in Christ, stress is optional.)
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To: Mike Darancette; Errant

Mike, that’s the catch. For right now Iberian landmass lies on the southern reaches of Eurasian Plate which we know is moving in an opposite direction of the North American Plate as evidenced by the Mid Atlantic Ridge.

So I am still trying to grasp what mechanisms would change and or present themselves.

Great question!

Errant what would be your take?


31 posted on 06/19/2013 5:19:19 AM 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; Mike Darancette
Guessing the Mid Atlantic Ridge will continue pumping new material to the surface (i.e., the Atlantic will not close up, IMO). If the calving continues, which I think it will, the movement may be somewhat rotational, similar to the Nazca plate.

Volcanic activity / mountain ranges occur in front of the subducting zone / plate, and volcanic activity can also occur as a result of rifting apart.

If the North American plate bumps into Europe, something much more cataclysmic will be the cause. ;) As you know, my pet theory is a cyclic build of heat within earth (from tidal force and other), working its way up to the surface of the planet, and the increased geological activity worldwide, evidence. We had 75 volcanoes erupt in '12, we're already above 60 for '13.

The recent discovery of a larger than first determined hot spot in the Southern Pacific, and the magnetic pole drift picking up speed are other evidence.

32 posted on 06/19/2013 6:23:17 AM PDT by Errant
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To: Errant

I think the piece missing is how this new subduction area sets up. if it is subducting west to east then it will directly effect the atlantic ridge if it’s subducting say east to west I would think that would tend to cause the most havoc.


33 posted on 06/19/2013 6:37:09 AM 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

Agree - have to “wait” and see. lol


34 posted on 06/19/2013 6:40:27 AM PDT by Errant
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To: winoneforthegipper
Check out Mexico’s Popocatepetl volcano's recent massive explosion spewing ash and incandescent rock almost 4 kilometers high. Look for the shock wave.

http://www.youtube.com/watch?v=3ATDHCtaMBs&feature=player_detailpage

35 posted on 06/19/2013 10:34:15 AM PDT by Errant
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To: arthurus; SunkenCiv
They'll really have to raise our taxes, borrow more money from everyone else on Earth, and confiscate all profits from everyone to prevent THIS from happening!

Just a few trillion dollars more, and we can solve this global problem!!

Pony up!!!

</s>
36 posted on 06/19/2013 11:27:20 AM PDT by TheOldLady
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To: winoneforthegipper
“as continental Europe moves closer to America.”

Sounds like those long ocean flights will be a thing of the past.
Time to sell airline stocks then.

37 posted on 06/19/2013 11:29:51 AM PDT by HereInTheHeartland (ok)
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To: TheOldLady

Too bad I won’t live to see construction of artificial planets. Unless of course someone figures out how to stop aging. And then reverse it. And I don’t mean minoxodil and viagra, either.


38 posted on 07/01/2013 4:16:35 PM PDT by SunkenCiv (McCain or Romney would have been worse, if you're a dumb ass.)
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To: SunkenCiv

Since the progress of civilization isn’t, there is a high probability that no one alive today will live to see artificial planets.

What is minoxodil?

Never mind. I looked it up.


39 posted on 07/01/2013 4:40:42 PM PDT by TheOldLady
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