Multi-phase development of the faults and joints in the Sul'ov Conglomerates (Sul'ovske vrchy Mts., Slovakia): Implications for paleostress history

摘要

Detailed field research of meso-scale brittle structures of the Sul'ov Conglomerates revealed the record of multi-phase Oligocene-Pliocene deformation in this area. The first detected tectonic event was the Oligocene to Middle Miocene transpression with compressional stress axis oriented in NW-SE to NNW-SSE direction. During the Middle-Late Miocene the transpressional tectonic regime was changed to transtension. The compression stress axis was oriented in N-S to NE-SW direction. The Pliocene tectonic regime is characterized by the change of transtension to extension, being oriented generally in the N-S direction.