Late Neogene counterclockwise rotation in the SW part of the Pannonian Basin
Published: Feb 2006
Pages: 41 - 46
Authors: EMO MARTON, BOGOMIR JELEN, BRUNO TOMLJENOVIC, DAVOR PAVELIC, MARIJAN POLJAK, PETER MARTON, RADOVAN AVANIC, JAKOB PAMIC
Abstract: Earlier paleomagnetic studies suggested that counterclockwise rotating Adriatic microplate could have triggered the youngest rotations in the Hrvatsko Zagorje area (in the Slavonian Mts) and in the Mura-Zala Depression. Since the named areas are located quite far from the Eastern Adriatic coast, we decided to study the Krsko and Karlovac Basins, which are situated in-between. From the collected 12 paleomagnetic localities (Badenian through Pontian sediments) ten yielded good paleomagnetic directions as a result of laboratory processing and statistical evaluation. They definitely point to the counterclockwise rotation of the area in post Early Pontian times. The angle of the rotation is about 20° (D=337°, I=50°, k=48, α95=10°). Thus, we have found a missing tectonic link from the Hrvatsko Zagorje, Slavonian Mts and the Mura–Zala Basins to the Adriatic microplate and collected further paleomagnetic evidence for end of Miocene or even younger important tectonic movements in the South Pannonian Basin.
Keywords: Neogene, South Pannonian Basin, paleomagnetism, rotation
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Volume 57 no. 1 / February 2006
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