Magazine article from our research archive:

ODP Cores Provide Insight on Magnetic Field Reversal

The time is takes for the Earth's magnetic field to reverse polarity is approximately 7,000 years, but the time it takes for the reversal to occur is shorter at low latitudes than high, a geologist concluded. Brad Clement of Florida International University believes that these results are a major step forward in scientists' understanding of how Earth's magnetic field works.

According to scientists, the magnetic field has exhibited a frequent but dramatic variation at irregular times in the geologic past-it has completely changed direction. A compass needle, if one existed then, would have pointed not to the north geographic pole, but instead to the opposite direction. Such polarity ...

Related newspaper, magazine, and journal articles:

See all results. Or, try our Advanced Search.

Newsweek Harper's Magazine The Washington Post Chicago Tribune Crain's Chicago Business PRNewswire Pediatric News The Nation Advertising Age The Economist (US) A FREE trial gives you access to over 60 million articles! Access over 3,500 publications with a FREE trial!