Studies of ancient supercontinent don't match up

For a quarter-century or more, the prevailing view among geoscientists—supported by paleomagnetic records in rock—has been that the portion of the ancient supercontinent of Pangea that is now the Colorado Plateau in southern Utah shifted more than 1,300 miles north during a 100-million-year span that ended about 200 million years ago in the early Jurassic Period, when Pangea began to break up.

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<p><a href="http://www.physorg.com/news115312740.html">Studies of ancient supercontinent don't match up</a></p> <p>For a quarter-century or more, the prevailing view among geoscientists—supported by paleomagnetic records in rock—has been that the portion of the ancient supercontinent of Pangea that is now the Colorado Plateau in southern Utah shifted more than 1,300 miles north during a 100-million-year span that ended about 200 million years ago in the early Jurassic Period, when Pangea began to break up.</p>