The magnetism of some Permian red sandstones from northwestern Turkey

Abstract

A series of eighteen oriented samples collected from the Permian of the Amasra region (Black Sea coast) revealed after progressive demagnetization a characteristic remanent magnetization vector with a declination of 290° and an inclination of -14 3/4°, as opposed to the declination of 210° and inclination of -15 1/2° calculated for the same region on the basis of the mean Permian pole position as determined from samples obtained from stable parts of the European continent. Such deviations are a common feature of material collected from the neighbourhood of the alpine orogenic belt; in this instance the discrepancy is tentatively explained in terms of regional strike-slip faulting.