Outcrop-scale structural data and seismic section interpretation are combined to unveil
a very complicated Tertiary deformation history of a once Tethyan margin: the Mecsek-Villany
area of Hungary. This combination of data helped to reconstruct the possible activity
of individual fault zones. At least four ENE-WSW striking zones-the Northern Imbricates,
the South Mecsek zone, the Gorcsony-Mariakemend ridge and the Villany Mountains-were
confirmed as regional long-lived transpressive zones with very complicated internal
deformation, frequently with oppositely dipping thrust faults. Tertiary structural
history began with a roughly N-S-directed shortening in the South Mecsek zone. It
was followed by a NE-SW-directed transpression activating practically all important
wrench zones together with perpendicular transfer faults. Basins were created along
some of these deformation zones, but were also affected by major tilts due to inversion.
After a relatively quiescent period in the Middle Miocene, the Late Sarmatian inversion
followed. Shortly after, this event was relayed by a NE-SW-directed extension-transtension.
An important inversion period characterised by NW-SE compression occurred in Late
Pannonian (Messinian), when all the former wrench zones were reactivated as right-lateral
shear. This event is responsible for the present topography of the region. (C) 2002
Elsevier Science B.V. All rights reserved.