Parallel magnetic fabrics in metamorphic, granitoid and sedimentary rocks of the Branisko and Čierna hora Mountains (E Slovakia) and their tectonometamorphic control (original) (raw)

Physics of the Earth and Planetary Interiors, 1988

Abstract

ABSTRACT The magnetic anisotropy of rocks from the Branisko and Čierna hora Mountains (West Carpathians) was investigated, and the ferromagnetic and paramagnetic components were separated and found to be roughly coaxial. The magnetic fabrics in metamorphic, granitoid, and sedimentary rocks display very similar patterns of principal susceptibilities. Metamorphites underwent a polyphase prograde and retrograde metamorphis, granitoids were metamorphosed retrogressively, and sedimentary rocks suffered a very weak prograde metamorphism. Retrogressive and progressive Alpine metamorphism and the formation of magnetic anisotropy took place simultaneously, before, during. and after the emplacement of the Central West Carpathian nappes.

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