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Heart of Earth's inner core revealed
BBC ^ | 10 February 2015 | Rebecca Morelle

Posted on 02/10/2015 12:54:42 AM PST by moose07

Scientists say they have gained new insight into what lies at the very centre of the Earth.

Research from China and the US suggests that the innermost core of our planet has another, distinct region at its centre.

The team believes that the structure of the iron crystals there are different from those found in the outer part of the inner core.

The findings are reported in the journal Nature Geoscience.

Without being able to drill into the heart of the Earth, its make-up is something of a mystery.

So instead, scientists use echoes generated by earthquakes to study the core, by analysing how they change as they travel through the different layers of our planet.

Prof Xiaodong Song, from the University of Illinois at Urbana-Champaign said: "The waves are bouncing back and forth from one side of the Earth to the other side of the Earth."

Prof Song and his colleagues in China say this data suggests that the Earth's inner core - a solid region that is about the size of the Moon - is made up of two parts.


(Excerpt) Read more at bbc.co.uk ...


TOPICS: Chit/Chat; Science
KEYWORDS: catastrophism; earth; poleshift
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1 posted on 02/10/2015 12:54:42 AM PST by moose07
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To: moose07

What is an “equatorial axis”?


2 posted on 02/10/2015 1:05:36 AM PST by Born to Conserve
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To: moose07
From the article:

The seismic wave data suggests that crystals in the "inner inner core" are aligned in an east-to-west direction - flipped on their side, if you are looking down at our planet from high above the North Pole.

The core, which lies more than 5,000km down, started to solidify about a billion years ago - and it continues to grow about 0.5mm each year.

Sounds like a bunch of super computer simulations, interpretations and guess-ta-mations going on there :)

3 posted on 02/10/2015 1:18:52 AM PST by The Cajun (Ted Cruz, Sarah Palin, Mark Levin, Mike Lee, Louie Gohmert....Nuff said.)
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To: Born to Conserve

The Equatorial Axis is the intersection of a sphere’s surface with the plane perpendicular to the sphere’s axis of rotation and midway between the poles.


4 posted on 02/10/2015 1:19:22 AM PST by moose07 (The Camels have reached the parking lot. Shields up!)
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To: The Cajun

Guess-ta-mations on a monumental scale. :)


5 posted on 02/10/2015 1:21:25 AM PST by moose07 (The Camels have reached the parking lot. Shields up!)
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To: moose07

Worked with sonic and ultrasonic equipment for an oilfield service company, the part about the core increasing 0.5mm every year kind of tickled me considering the depth of that measurement and the very indirect way they are measuring it.


6 posted on 02/10/2015 1:28:39 AM PST by The Cajun (Ted Cruz, Sarah Palin, Mark Levin, Mike Lee, Louie Gohmert....Nuff said.)
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To: The Cajun
Proof positive the Chinese are training to all jump off a 30 in platform concurrently, in order to throw us off the face of the planet.

:^)

7 posted on 02/10/2015 1:37:43 AM PST by Cvengr ( Adversity in life & death is inevitable; Stress is optional through faith in Christ.)
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To: Cvengr
Also proof positive their super computer is still running Windows Vista :)
8 posted on 02/10/2015 1:40:59 AM PST by The Cajun (Ted Cruz, Sarah Palin, Mark Levin, Mike Lee, Louie Gohmert....Nuff said.)
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To: moose07
The Equatorial Axis is the intersection of a sphere’s surface with the plane perpendicular to the sphere’s axis of rotation and midway between the poles.

You are describing a circle (intersection of the surface of a sphere with a plane), whereas the pictorial representation is not a circle, but a straight line intersecting the surface of the planet at two points: 9˚ south latitude, 91˚ east longitude and 9˚ north latitude, 89˚ west longitude. Since an "axis" is generally a line, and your explanation is at odds with the diagram provided by the authors, I suggest your post fails to explain the significance of this odd "axis".

9 posted on 02/10/2015 1:58:39 AM PST by John Valentine (Deep in the Heart of Texas)
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To: John Valentine
This may help:

90 degrees to axis of rotation.
10 posted on 02/10/2015 2:29:31 AM PST by moose07 (The Camels have reached the parking lot. Shields up!)
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To: The Cajun

Sounds like pimping for research dollars and tenure to me.


11 posted on 02/10/2015 3:36:20 AM PST by Sequoyah101 (Adversity does not build character so much as expose it.)
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To: moose07

Somehow I think reading the composition of the Earth’s core from echoes of earthquakes is like reading the future from tea leaves.


12 posted on 02/10/2015 4:00:57 AM PST by Fester Chugabrew (Even the compassion of the wicked is cruel.)
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To: moose07

There are vast amounts of gold, metals, and diamonds just a thousand miles away. Unfortunately we have a far easier time reaching Mars 50 million miles away than reaching Earth’s core.


13 posted on 02/10/2015 4:02:23 AM PST by Reeses
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To: Fester Chugabrew

That is similar to the first thing that went through my head when I heard the report on the radio this morning. :)


14 posted on 02/10/2015 4:03:01 AM PST by moose07 (The Camels have reached the parking lot. Shields up!)
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To: The Cajun

The term W-A-G comes to mind.
(Wild-Assed-Guess).


15 posted on 02/10/2015 4:16:06 AM PST by Tucker39 (Welcome to America! Now speak English; and keep to the right....In driving, in Faith, and politics.)
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To: moose07

Thanks to Algore, we all know now that it’s millllyons and millllyons degrees down there too.


16 posted on 02/10/2015 4:54:27 AM PST by RetSignman (Obama is the walking, talking middle finger in the face of America)
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To: Fester Chugabrew
Somehow I think reading the composition of the Earth’s core from echoes of earthquakes is like reading the future from tea leaves.

Not nearly that precise.

17 posted on 02/10/2015 5:00:35 AM PST by kjam22 (my music video "If My People" at https://www.youtube.com/watch?v=74b20RjILy4)
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To: moose07

Let’s see....

The equatorial axis of the Earth is 9 degrees.

The elliptic of the planets relative to the Sun is 9 degrees.

Uh...ya...no Creator....just an accident.


18 posted on 02/10/2015 5:08:04 AM PST by G Larry (Obama may not be "THE" Antichrist, but he is certainly America's Antichrist.)
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To: Cvengr

Noooo. The Chinese are tunneling through the earth to invade. Maybe they’ll poke through at a housing project site and run away.


19 posted on 02/10/2015 5:14:32 AM PST by King Moonracer (Bad lighting and cheap fabric, that's how you sell clothing.....)
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To: moose07

I don’t see the Shire and all the Hobbits.


20 posted on 02/10/2015 6:16:08 AM PST by 4yearlurker (Some people say that experts agree!!)
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