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Scientists say Earth is undergoing true polar wander!!!

 
Luisport

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10/02/2012 05:17 AM

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Scientists say Earth is undergoing true polar wander!!!
Scientists say Earth is undergoing true polar wander

Posted on October 2, 2012




October 2, 2012 – EARTH - True polar wander is a geophysical theory, a way of thinking about Earth processes that might happen and that these scientists believe do happen. The theory suggests that if an object of sufficient weight on Earth – for example, a supersized volcano or other weighty land mass – formed far from Earth’s equator, the force of Earth’s rotation would gradually pull the object away from the axis around which Earth spins. A supersized volcano far from Earth’s equator would create an imbalance, in other words. As explained at Princeton.edu: If the volcanoes, land and other masses that exist within the spinning Earth ever became sufficiently imbalanced, the planet would tilt and rotate itself until this extra weight was relocated to a point along the equator. That’s the theory of true polar wander. It would cause a movement of Earth’s land masses, but for a different reason than the reason the continents drift in the theory of plate tectonics (formerly called “continental drift”). In the theory of plate tectonics, the continents drift because Earth’s the layer of Earth underlying our planet’s crust (called the mantle) is convective. That is, it circulates, slowly – like water about to boil. In true polar wander, on the other hand, a similar-seeming movement of land masses on Earth’s crust happens in order to correct an imbalance of weight with respect to Earth’s spin. Scientists’ understanding of true polar wander overlaps with their understanding of plate tectonics in various ways. That’s understandable, since it’s all the same Earth. Scient--- read more

[link to theextinctionprotocol.wordpress.com]

Last Edited by Mister Obvious on 10/02/2012 05:49 AM
Luisport (OP)

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10/02/2012 06:06 AM

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Re: Scientists say Earth is undergoing true polar wander!!!
bump
Anonymous Coward
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10/02/2012 06:10 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
Are u the same Luesport in the 2012 forum !!!
Anonymous Coward
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10/02/2012 06:13 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
since when hasn't the world ever under gone "true polar wonder"?
Luisport (OP)

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10/02/2012 06:16 AM

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Re: Scientists say Earth is undergoing true polar wander!!!
Are u the same Luesport in the 2012 forum !!!
 Quoting: Anonymous Coward 24682568


Yes!
Anonymous Coward
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10/02/2012 06:23 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
Very interesting.

Based on simple physics.

A spinning sphere or eliptoid with uneven weight distribution along its surface will reorient its axis to allow for a wobble-free spin.

With the ice melting in various places on the planet it could possibly happen soon.

As soon as it hits the tipping point, the correction should take no more than hours or days.

Any correction though, would cause massive tidal shifts and by extension tsunamis and weather pattern changes. The world would descend into chaos.
Anonymous Coward
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10/02/2012 06:26 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
Are u the same Luesport in the 2012 forum !!!
 Quoting: Anonymous Coward 24682568


Yes!
 Quoting: Luisport


Its an honour

Bytheway,I wish this happens

It will be entertaining
Anonymous Coward
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10/02/2012 06:34 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
Are u the same Luesport in the 2012 forum !!!
 Quoting: Anonymous Coward 24682568


Yes!
 Quoting: Luisport


Its an honour

Bytheway,I wish this happens

It will be entertaining
 Quoting: Anonymous Coward 24682568


whatever
Luisport (OP)

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10/02/2012 06:40 AM

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Re: Scientists say Earth is undergoing true polar wander!!!
Are u the same Luesport in the 2012 forum !!!
 Quoting: Anonymous Coward 24682568


Yes!
 Quoting: Luisport


Its an honour

Bytheway,I wish this happens

It will be entertaining
 Quoting: Anonymous Coward 24682568


Thank's! by the way everyone in that forum is now in this one: [link to www.2012thestream.com]
Anonymous Coward
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10/02/2012 06:45 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
0.2 degrees over a million years, for the doomtards
Anonymous Coward
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10/02/2012 06:47 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
Are u the same Luesport in the 2012 forum !!!
 Quoting: Anonymous Coward 24682568


Yes!
 Quoting: Luisport


Its an honour

Bytheway,I wish this happens

It will be entertaining
 Quoting: Anonymous Coward 24682568


You didn't even read it did you?
Anonymous Coward
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10/02/2012 07:03 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
mass has redistributed deep within the planet, with two huge lumps centred on Iceland and PNG

[link to www.bbc.co.uk]

and we have a fuckload of INCREASING weight sat right on top of Antarctica at the moment too...

[link to iceagenow.info]

sinkholes. there's your clue.

wink
Anonymous Coward
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10/02/2012 07:25 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
Time to build another pyramid. They act like little weights on a tire.
Luisport (OP)

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10/02/2012 07:46 AM

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Re: Scientists say Earth is undergoing true polar wander!!!
mass has redistributed deep within the planet, with two huge lumps centred on Iceland and PNG

[link to www.bbc.co.uk]

and we have a fuckload of INCREASING weight sat right on top of Antarctica at the moment too...

[link to iceagenow.info]

sinkholes. there's your clue.

wink
 Quoting: Anonymous Coward 16932400


hiding
Anonymous Coward
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10/02/2012 08:06 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
nope, same ol' earth. The poles have never shifted as they theorize. What has happened instead is magnetic drift due to plate tectonics. This has been the case since the global flood. The earth is not bazillions of years old. Base rock granites were never molten and do not support their dating beliefs, neither does the erosion rate; poles remain while plates have shifted some.

[link to www.icr.org]
[link to www.icr.org]
Hydra

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10/02/2012 08:22 AM

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Re: Scientists say Earth is undergoing true polar wander!!!
Scientists say Earth is undergoing true polar wander

Posted on October 2, 2012

October 2, 2012 – EARTH - True polar wander is a geophysical theory, a way of thinking about Earth processes that might happen and that these scientists believe do happen. ...
 Quoting: Luisport

Why didn't you link to the original article at EarthSky [link to earthsky.org] ?

Oh, I get it - it wouldn't be a lurid headline.

From the original publication at the JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 117, B09101, 30 PP., 2012:
A comparison of absolute reconstructions using the GMHRF and the most recent global paleomagnetic frame reveals substantial amounts of true polar wander at rates varying between ∼0.1°/Ma and 1°/Ma. Two intriguing, nearly equal and antipodal rotations of the Earth relative to its spin axis are suggested for the 90–60 Ma and 60–40 Ma intervals (∼9° at a 0.3–0.5°/Ma rate); these predictions have yet to be tested by geodynamic models.

[Ma = million years]

[link to www.agu.org]



.
If the Moon is off, if Earth wobbles or if there is a pole shift
how can things like this, predicted decades ago, happen?

aseindia
Annular Solar Eclipse - January 15, 2010 - Rameshwaram, India
Anonymous Coward
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10/02/2012 08:29 AM
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Re: Scientists say Earth is undergoing true polar wander!!!
Scientists say Earth is undergoing true polar wander

Posted on October 2, 2012

October 2, 2012 – EARTH - True polar wander is a geophysical theory, a way of thinking about Earth processes that might happen and that these scientists believe do happen. ...
 Quoting: Luisport

Why didn't you link to the original article at EarthSky [link to earthsky.org] ?

Oh, I get it - it wouldn't be a lurid headline.

From the original publication at the JOURNAL OF GEOPHYSICAL RESEARCH, VOL. 117, B09101, 30 PP., 2012:
A comparison of absolute reconstructions using the GMHRF and the most recent global paleomagnetic frame reveals substantial amounts of true polar wander at rates varying between ∼0.1°/Ma and 1°/Ma. Two intriguing, nearly equal and antipodal rotations of the Earth relative to its spin axis are suggested for the 90–60 Ma and 60–40 Ma intervals (∼9° at a 0.3–0.5°/Ma rate); these predictions have yet to be tested by geodynamic models.

[Ma = million years]

[link to www.agu.org]



.
 Quoting: Hydra


Yes, typical sensationalist tactic, see my posts above. 0.2 degrees movement per million years is unnoticeable and inconsequential. Obviously the credulous fools on this site can't read past the headline anyway...
Anonymous Coward
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10/02/2012 03:07 PM
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Re: Scientists say Earth is undergoing true polar wander!!!
I beg to differ. I think with the .. crustal displacement thread and others ... the movement itself takes awhile BUT the catch up doesn't take long at all. Research further beyond this paper.
Hydra

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10/02/2012 04:01 PM

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Re: Scientists say Earth is undergoing true polar wander!!!
I beg to differ. I think with the .. crustal displacement thread and others ... the movement itself takes awhile BUT the catch up doesn't take long at all. Research further beyond this paper.
 Quoting: Anonymous Coward 24613830

Since you claim this, I assume that you can provide some links to scientific papers like the one I mentioned.

Oh wait, it's better than a link to a scientific paper - it's a YouTube video.


.
If the Moon is off, if Earth wobbles or if there is a pole shift
how can things like this, predicted decades ago, happen?

aseindia
Annular Solar Eclipse - January 15, 2010 - Rameshwaram, India
Anonymous Coward
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10/02/2012 04:17 PM
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Re: Scientists say Earth is undergoing true polar wander!!!
[link to news.liv.ac.uk (secure)]
Link supports magnetic reversal in relation to polar wander. Why bring this up? Because the paper (which I believe and am happy was published) says that magnetic reversal has nothing to do with polar wander. Which if you look at time periods of magnetic reversal, polar wander, Yellowstone, etc all happened around the same time. That in itself is pretty awesome. As I find links I'll post.

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