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Did Earth's Twin Cores Spark Plate Tectonics?

Posted January 08, 2009 8:41 AM

From msnbc.com: Science:

It's a classic image from every youngster's science textbook: a cutaway image of Earth's interior. The brown crust is paper-thin; the warm mantle orange, the seething liquid of the outer core yellow, and at the center the core, a ball of solid, red-hot iron. Now a new theory aims to rewrite it all by proposing the seemingly impossible: Earth has not one but two inner cores.

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#1

Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/09/2009 10:09 AM

I think this theory is a bit fuzzy - to the point where a good trim with Occam's Razor might be useful.

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#2

Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/09/2009 2:13 PM

The authors say: "We have no solid evidence yet...." Any hypotheses regarding the core are, of course, very difficult to measure. It is humorous to read their statement from the viewpoint of the core being liquid. . . .

---JMM

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#3
In reply to #2

Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/09/2009 3:01 PM

That WOULD go a long way in explaining the lack of solid evidence, I suppose, wouldn't it?

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#4
In reply to #2

Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/09/2009 10:12 PM

The core of the matter is obvioulsy an unshelled roasted peanut.

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#5
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Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/09/2009 11:32 PM

Don't tell Kris he'll be set on world domination of that nut.

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#6

Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/09/2009 11:48 PM

of topic but in the ball park

i wonder if you thinkers could enlighten me (winter observations) i have noticed every time there is going to be an increase of temperature my steam unfreezes in spots up to a day in advance of the thermometer going up and not necessarily above freezing it seem to proceed a pressure system every time i was wondering if it is the molten mantle thats moving around under us is the cause and is the cause of the climatic conditions

nick

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#7
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Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/10/2009 12:02 AM

High pressure usually proceeds a warm up. Don't have enough information about Your Steam to extrapolate from.

Brad

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#10
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Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/16/2009 11:17 AM

Did you mean your "stream"?

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#8

Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/10/2009 9:50 AM

Read the article,sounds interresting enough but I think that I'll wait for the movie.Who should play the hero?

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#9
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Re: Did Earth's Twin Cores Spark Plate Tectonics?

01/12/2009 8:42 AM

"Who should play the hero?"

My vote goes to Sean Connery as the original core, and Pierce Brosnan as the newcomer.

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