[1] Eotvos Lorand Geophys Inst Hungary, Palaeomagnet Lab, H-1145 Budapest, Hungary
[2] Univ Zagreb, Fac Min Geol & Petr Engn, Zagreb 10000, Croatia
[3] Eotvos Lorand Univ, Dept Geophys, H-1117 Budapest, Hungary
[4] Croatian Geol Survey, Zagreb 10000, Croatia
[5] Geoloski Zavod Slovenije, Ljubljana 1109, Slovenia