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Scientists probe link between magnetic polarity reversal and mantle processes
TerraDaily ^ | Aug 3, 2012 | Staff

Posted on 08/03/2012 8:50:34 AM PDT by Errant

Scientists at the University of Liverpool have
discovered that variations in the long-term reversal
rate of the Earth's magnetic field may be caused by
changes in heat flow from the Earth's core into the base
of the overlying mantle.

The Earth is made up of a solid inner core, surrounded
by a liquid outer core, in turn covered by a thicker
or more viscous mantle, and ultimately by the solid
crust beneath our feet.

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


TOPICS: Chit/Chat; Science; Weather
KEYWORDS: catastrophism; earthchanges; earthquakes; globalwarming; jmarvinherndon; poleshift; volcanoes

1 posted on 08/03/2012 8:50:43 AM PDT by Errant
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To: winoneforthegipper

Ping!


2 posted on 08/03/2012 8:51:37 AM PDT by Errant
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To: Errant

I knew it, I just knew it!


3 posted on 08/03/2012 8:52:17 AM PDT by Wally_Kalbacken
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To: Errant
The magnetic pole is moving much faster these days, and the overall field has weakened 10% since the 19th century. It will be interesting to watch this develop during my lifetime.

/johnny

4 posted on 08/03/2012 8:56:49 AM PDT by JRandomFreeper (Gone Galt)
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To: Wally_Kalbacken
My thoughts as well for years. Not too sure about their time lines in the article. I'm also not too sure about their theory of molten iron generating a magnetic field.

Additionally, in recent news, are findings of historical evidence correlating low sunspot activity with increased volcanic activity on earth. What the heck could cause that? LOL

5 posted on 08/03/2012 9:08:04 AM PDT by Errant
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To: JRandomFreeper

Yes it is. Last I heard, up to 85 miles per year now. Very interesting times we live in!


6 posted on 08/03/2012 9:10:19 AM PDT by Errant
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To: Errant

thanks


7 posted on 08/03/2012 9:11:11 AM PDT by Wuli
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To: Errant

Don’t “mantle processes” include subduction?


8 posted on 08/03/2012 9:15:08 AM PDT by RegulatorCountry
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To: JRandomFreeper; Wally_Kalbacken
Seems to me that something else to consider is the possibility the core periodically becomes out of sync with the mantle, either through precession or some kind of field effect between the sun and the earth or possibly even the galactic plane.

Resulting pressure waves could contribute to increased thermal variations and increased earthquake and volcanic activity on much shorter time frames. It would also explain earthquake cycles and the fact that these cycles encompass earthquakes at all depths.

Just thinkin' out loud here... ;)

9 posted on 08/03/2012 9:19:44 AM PDT by Errant
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To: RegulatorCountry

Yes, where two tectonic plates converge, a subduction zone will form and the oceanic plate will sink back into the mantle.


10 posted on 08/03/2012 9:24:47 AM PDT by Errant
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To: Errant

No Duh!


11 posted on 08/03/2012 9:28:09 AM PDT by wxgesr (I want to be the first person to surf on another planet.)
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To: RegulatorCountry
That's a secondary process to what's claimed in this report though.
12 posted on 08/03/2012 9:31:58 AM PDT by Errant
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To: Errant

Good Ping....thanks bud!


13 posted on 08/03/2012 10:21:37 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: Errant

The evidence is there. There is a broad consensus in the scientific community. The UN panel study is incontrovertible. The science is settled. THIS CHANGE OF THE EARTH’S MAGNETISM IS MAN MADE.

All iron ore mining must stop right now!


14 posted on 08/03/2012 10:48:37 AM PDT by Moltke ("I am Dr. Sonderborg," he said, "and I don't want any nonsense.")
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To: 75thOVI; agrace; aimhigh; Alice in Wonderland; AndrewC; aragorn; aristotleman; Avoiding_Sulla; ...
Thanks Errant.



15 posted on 08/04/2012 8:04:44 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: Moltke

LOL! Of course, it’s also daunting to contemplate how easily that could come about in reality.


16 posted on 08/04/2012 8:13:31 AM PDT by SunkenCiv (https://secure.freerepublic.com/donate/)
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To: SunkenCiv

And don’t forget the next catastrophy humankind is called upon to put a stop to: Continental Drift! I suppose if great pylons were driven into the earth along all the world’s coastlines we can save our children and our children’s children from the continents crashing into each other. But we must act quickly and decisively.


17 posted on 08/04/2012 10:03:04 AM PDT by Moltke ("I am Dr. Sonderborg," he said, "and I don't want any nonsense.")
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To: Moltke
All iron ore mining must stop right now!

Sounds like another cash for clunkers program is needed to restore the earth's natural iron formations! :)

18 posted on 08/04/2012 6:54:56 PM PDT by Errant
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To: Errant
"correlating low sunspot activity with increased volcanic activity on earth."

Actually that sounds backward. Wouldn't low sunspot activity (less turbulent Sun) mean less volcanic activity?

19 posted on 08/04/2012 8:59:37 PM PDT by Steve Van Doorn (*in my best Eric Cartman voice* 'I love you, guys')
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To: Steve Van Doorn
Actually that sounds backward.

I know. In the article below, they contribute it to a lag. I think there is something at work we haven't figure out yet, since SP minimums can last many years.

Sunspots, earthquakes and volcanic eruptions

20 posted on 08/04/2012 11:30:31 PM PDT by Errant
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