“There was an attempt to rip away Florida and southern Georgia,” geologist Robert Hatcher, of the University of Tennessee in Knoxville, told Discovery. “So you have a failed rift there … There are pieces of crust that started in Africa.”
Continental breakups are proving to be just as destructive as some human separations. Geologists say they have found a fragment of Africa embedded in the southeastern U.S., a remnant of the rift that occurred between the two continents some 250 million years ago.
Scientists have known for some time of the presence of a strange band of magnetic rock that stretches from Alabama through Georgia and offshore to the North Carolina coast, but its origin has been debated. The ribbon of rock is buried about 9 to 12 miles below the surface. According to a new study published in the journal Geological Society of America, the fissure, known as the Brunswick Magnetic Anomaly, was created hundreds of millions of years ago when the crusts of Africa and North America were yanked apart like stitches in a piece of cloth.
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