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02-11-2015, 09:15 PM
Thank you, DLP!
I ran across this one, too, at Earthfiles. The word 'crystal' hung around the Bot Run recently, too.
Updated February 10, 2015 / June 28, 2013 Jamestown, North Dakota, and Palo Alto, California - The February 9, 2012, journal Nature Geoscience, reported a new research discovery of a small "inner-inner core" inside the Earth's whole inner core that is inside the Earth's outer core that is inside the Earth's mantle and all covered by the Earth's crust was published by T. Wang, X. Song and H. Xia, University of Illinois and Nanjing University, China. See NG link in Websites below.
The scientists tried using seismic sensors to gather wave signals that resonate after earthquakes. The concept is that an earthquake moves rock and dirt layers with huge energy like a hammer striking a bell. The first hit and loud sound are followed by a residual clear tone that lasts longer. It's that clear tone that Song et al used to literally look into the center of the Earth four thousand miles from the surface and made the surprising find of two different inner cores.
Phys.org summarized the discovery this way: "The Earth's inner core, once thought to be a solid ball of iron, has some complex structural properties. An 'inner-inner core,' about half the diameter of the whole inner core, has been found to have iron crystals in the outer layer of the inner core that are aligned directional north-south However, in the inner-inner core, the iron crystals point roughly east-west. ... Not only are the iron crystals in the inner-inner core aligned differently, they behave differently from their counterparts in the outer-inner core. That means the inner-inner core could be made of a different type of crystal." See link at end of this report.
One of the Earth core researchers, Xiaodong Song, Professor of Geology at the University of Illinois, told Phys.org, "We are looking all the way through the center of the Earth," never accomplished before. "The fact that we have two regions of the inner core that are distinctly different might tell us something about how the inner core has been evolving ... it might have had a very dramatic change in its deformation regime. It might hold the key to how the Earth has evolved." Inner Earth changes might also cause the periodic loud booms and other strange sounds heard not only in the modern phase of the boom phenomenon, but might explain periodic boom sounds into the 18th Century and before.
The following is the first Earthfiles report in May 2013 about a possible link between all the mysterious booms and changes ongoing in the Earth's core, thought then to be a singular, solid, spherical iron core. Now with the new University of Illinois and China discovery of an "inner-inner core" and a surrounding inner core inside the outer core inside the mantle surrounded by the Earth's crust all the way up through the atmosphere to the ionosphere, it's possible that infrasound frequencies emanating from the Earth's core could be exiting the Earth, hitting the ionosphere and bouncing back with changing frequencies that can be heard by the human ear.
I ran across this one, too, at Earthfiles. The word 'crystal' hung around the Bot Run recently, too.
Updated February 10, 2015 / June 28, 2013 Jamestown, North Dakota, and Palo Alto, California - The February 9, 2012, journal Nature Geoscience, reported a new research discovery of a small "inner-inner core" inside the Earth's whole inner core that is inside the Earth's outer core that is inside the Earth's mantle and all covered by the Earth's crust was published by T. Wang, X. Song and H. Xia, University of Illinois and Nanjing University, China. See NG link in Websites below.
The scientists tried using seismic sensors to gather wave signals that resonate after earthquakes. The concept is that an earthquake moves rock and dirt layers with huge energy like a hammer striking a bell. The first hit and loud sound are followed by a residual clear tone that lasts longer. It's that clear tone that Song et al used to literally look into the center of the Earth four thousand miles from the surface and made the surprising find of two different inner cores.
Phys.org summarized the discovery this way: "The Earth's inner core, once thought to be a solid ball of iron, has some complex structural properties. An 'inner-inner core,' about half the diameter of the whole inner core, has been found to have iron crystals in the outer layer of the inner core that are aligned directional north-south However, in the inner-inner core, the iron crystals point roughly east-west. ... Not only are the iron crystals in the inner-inner core aligned differently, they behave differently from their counterparts in the outer-inner core. That means the inner-inner core could be made of a different type of crystal." See link at end of this report.
One of the Earth core researchers, Xiaodong Song, Professor of Geology at the University of Illinois, told Phys.org, "We are looking all the way through the center of the Earth," never accomplished before. "The fact that we have two regions of the inner core that are distinctly different might tell us something about how the inner core has been evolving ... it might have had a very dramatic change in its deformation regime. It might hold the key to how the Earth has evolved." Inner Earth changes might also cause the periodic loud booms and other strange sounds heard not only in the modern phase of the boom phenomenon, but might explain periodic boom sounds into the 18th Century and before.
The following is the first Earthfiles report in May 2013 about a possible link between all the mysterious booms and changes ongoing in the Earth's core, thought then to be a singular, solid, spherical iron core. Now with the new University of Illinois and China discovery of an "inner-inner core" and a surrounding inner core inside the outer core inside the mantle surrounded by the Earth's crust all the way up through the atmosphere to the ionosphere, it's possible that infrasound frequencies emanating from the Earth's core could be exiting the Earth, hitting the ionosphere and bouncing back with changing frequencies that can be heard by the human ear.