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07-28-2015, 02:00 PM
spreading, strongly, shifting, hundred(s)
Ancient huts may reveal clues to Earth's magnetic pole reversals
By Sarah LewinPublished July 28, 2015
"The fiery demise of ancient huts in southern Africa 1,000 years ago left clues to understanding a bizarre weak spot in the Earth's magnetic field — and the role it plays in the magnetic poles' periodic reversals."
"Some have postulated that the Earth's magnetic field is leaking out the wrong way at that particular spot," Rory Cottrell, a geologist also at the University of Rochester and co-author of the new paper, told Space.com. "One theory is that changes in the South Atlantic Anomaly could be responsible for the decrease in the overall magnetic field that we're seeing, because these patches are growing or changing over time."
http://www.foxnews.com/science/2015/07/2...cmp=hphz24
Ancient huts may reveal clues to Earth's magnetic pole reversals
By Sarah LewinPublished July 28, 2015
"The fiery demise of ancient huts in southern Africa 1,000 years ago left clues to understanding a bizarre weak spot in the Earth's magnetic field — and the role it plays in the magnetic poles' periodic reversals."
"Some have postulated that the Earth's magnetic field is leaking out the wrong way at that particular spot," Rory Cottrell, a geologist also at the University of Rochester and co-author of the new paper, told Space.com. "One theory is that changes in the South Atlantic Anomaly could be responsible for the decrease in the overall magnetic field that we're seeing, because these patches are growing or changing over time."
http://www.foxnews.com/science/2015/07/2...cmp=hphz24