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10/17/2012 06:31 PM
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Report Copyright Violation | Scientists link rapid geomagnetic field reversal, climate change & supervolcanic eruptions to same geological time period October 17, 2012 – GEOLOGY - An extremely brief reversal of the geomagnetic field, climate variability and a supervolcanic eruption. 41,000 years ago, a complete and rapid reversal of the geomagnetic field occurred. Magnetic studies of the GFZ German Research Centre for Geosciences on sediment cores from the Black Sea show that during this period, during the last ice age, a compass at the Black Sea would have pointed to the south instead of north. Moreover, data obtained by the research team formed around GFZ researchers Dr. Norbert Nowaczyk and Prof. Helge Arz, together with additional data from other studies in the North Atlantic, the South Pacific and Hawaii, prove that this polarity reversal was a global event. Their results are published in the latest issue of the scientific journal “Earth and Planetary Science Letters.” What is remarkable is the speed of the reversal: “The field geometry of reversed polarity, with field lines pointing into the opposite direction when compared to today’s configuration, lasted for only about 440 years, and it was associated with a field strength that was only one quarter of today’s field,” explains Norbert Nowaczyk. “The actual polarity changes lasted only 250 years. In terms of geological time scales, that is very fast.” During this period, the field was even weaker, with only 5% of today’s field strength. As a consequence, the Earth nearly completely lost its protection shield against hard cosmic rays, leading to a significantly increased radiation exposure. This is documented by peaks of radioactive beryllium (10Be) in ice cores from this time, recovered from the Greenland ice sheet. 10Be as well as radioactive carbon (14C) is caused by the collision of high-energy protons from space with atoms of the atmosphere. MORE AT LINK: [ link to www.sciencecodex.com] GLP Disclaimer
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10/18/2012 06:51 PM
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Report Copyright Violation | Re: Scientists link rapid geomagnetic field reversal, climate change & supervolcanic eruptions to same geological time period  GLP Disclaimer
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"If you love wealth more than liberty, the tranquility of servitude better than the animating contest of freedom, depart from us in peace. We ask not your counsel nor your arms. Crouch down and lick the hand that feeds you. May your chains rest lightly upon you and may posterity forget that you were our countrymen."- Samuel Adams
"...It does not require a majority to prevail, but rather an irate, tireless minority keen to set brush fires in people's minds.."
--Samuel Adams
A man may die, nations may rise and fall, but an idea lives on.
--John F. Kennedy
The cost of freedom is always high, but Americans have always paid it. And one path we shall never choose, and that is the path of surrender, or submission.
--John F. Kennedy
Mankind must put an end to war before war puts an end to mankind.
--John F. Kennedy
All religions, arts and sciences are branches of the same tree.
--Albert Einstein |
Anonymous Coward
User ID: 2601530
 New Zealand
10/18/2012 06:54 PM
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Report Copyright Violation | Re: Scientists link rapid geomagnetic field reversal, climate change & supervolcanic eruptions to same geological time period Dooooooooooooooooooooooooooooooooooooooom!
Nah, just kidding. GLP effect. |
Anonymous Coward
User ID: 25824850
 United States
10/18/2012 07:10 PM
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Report Copyright Violation | Re: Scientists link rapid geomagnetic field reversal, climate change & supervolcanic eruptions to same geological time period
There was no magnetic reversal. It's just something the marxist liars invented to explain away the measured decrease proving the absurdity of bazzillions of years. The Evolution Delusion: The Young Earth [ link to www.youtube.com] Malcolm Bowden presents the decrease in the Earth's magnetic field and the decrease in the size of the sun.Research presented: [ link to www.icr.org] [ link to www.icr.org] [ link to www.icr.org] |
