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Palaeomagnetism of some Upper Cretaceous rocks, SW Sinai, Egypt


, : Palaeomagnetism of some Upper Cretaceous rocks, SW Sinai, Egypt. Annals of the Geological Survey of Egypt 20, Part II(Pages 747-767

A detailed palaeomagnetic study has been carried out on ca. 380 core samples from the Upper Cretaceous rocks in Gabals Qabaliat, Nezzazat and Ekma in Southwest Sinai, Egypt. The four palaeomagnetic poles for the rocks (Cenomanian, Turonian, Lower Senonian and Upper Senonian ages) have been precisely determined and regarded as magnetically reliable. The present results together with all the African reliable data of Upper Cretaceous age are summarized, plotted and compared. The present poles are found to deviate to the north from their equivalent African Upper Cretaceous poles. This was explained as due to a variety of causes such as polar wandering, reversible drift of Africa, remagnetization, secular variation and tectonic rotations. Local tectonics were found to be the most probable factor responsible for this deviation.

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