Abstract

During the Middle and the Late Miocene, intra-Carpathian basins have developed south and west of the Carpathian arc. These basins are bounded by normal faults and connected by conjugate shear zones: sinistral strike-slip fault systems trend NE-SW, whereas dextral ones trend NW-SE. By means of geometrical analyses of fault system and paleostress tensor determinations, it has been possible to consistently reconstruct the succession of tectonic events in the Hungarian mountains. The two main stages in the structural development of the intra-Carpathian basins are: 1. (1) the initiation of pull-apart basins along conjugate shear zones, in a N-S compressional and E-W extensional regime; and 2. (2) the development of these basins in a tectonic regime characterized by a dominant E-W trending extension.

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