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Regional trends in the timing of Alleghanian remagnetization in the Appalachians

Miller, John D.; Kent, Dennis V.

Pole positions related to remagnetized components isolated in Appalachian limestone and redbed rock units range over about 60 m.y. of the Permian-Carboniferous apparent polar wander path for North America. Apparent ages of remagnetization are older in the southern Appalachians and younger to the north. If the remagnetizations are associated with fluids expelled during the Alleghany orogeny, then the apparent remagnetization age trend could describe the timing of thrust-sheet emplacement.

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Lamont-Doherty Earth Observatory
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January 23, 2012
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