Tectonic and structural implications of paleomagnetic and AMS study of highly metamorphosed Paleozoic rocks from the Gemeric Superunit, Slovakia

Paleozoic highly metamorphosed rocks were sampled in 4 localities situated along the Kosice-Margecany shearing zone (East-Carpathian dextral system), on two sites situated close to the Dobsina shearing zone (West-Carpathian s inistral system), and on one site situated within the Gemeric Superunit. Th e West-Carpathian and East-Carpathian shearing systems resulted in the divi sion of Gemeric Superunit into a mosaic of small tectonic blocks. Each site sampled for this study represents one such block. Our paleomagnetic study revealed that the rocks became remagnetized in the Middle Miocene after a r egional CCW rotation, probably during the period between anomaly 6 (20 Ma) and anomaly 5 (10 Ma). After the remagnetization episodes the blocks underw ent rotations (around their vertical axes) associated with activity of resp ective dextral or sinistral shearing zones. The results of the AMS study su ggest a correlation between the magnetic fabric and the Alpine tectonic def ormation episodes.