Jurassic-to-Miocene Evolution of the Polish and Ukrainian Carpathian Foreland Based on Geological and Geophysical Data and Analogue Modeling
Krzywiec, Piotr1, Jacek
Gutowski1, Igor Popadyuk2, Hemin
A. Koyi3, Zbigniew Zlonkiewicz4,
Piotr Gliniak5, Igor Gubych2, Kazimierz Madej6, Irena Matyjasik7,
Barbara Olszewska8, Tatiana Syrota2, Andrzej
Urbaniec5, Grzegorz Wróbel1 (1)
Polish Geological Institute, Warsaw, Poland (2) Ukrainian Geological Institute,
Lviv, Ukraine;.(3)
fault
zones were
inverted due to the Alpine - Carpathian collision. The Nida
Trough, located in front of the orogenic belt, was
inverted in latest Maastrichtian or Palaeogene. Along the NE edge of the Mid-Polish Trough, due
to buttressing effect exterted by the East European Craton, inversion has been initiated already in Late(?) Turonian, with its peak during Campanian – Maastrichtian and post-Maastrichtian
times. As a result of Miocene thrusting within the Carpathians, the epicontinental basin was covered by the Miocene sediments
of the Carpathian foredeep and/or by the Carpathian nappes. Miocene foredeep evaporites and Upper Cretaceous marls act as hydrocarbon
seal. During the Miocene, basement
fault
zones have been partly reactivated in transtensional
regime
. This extension has enhanced HC prospectivity in selected areas by juxtaposing source and
reservoir rocks. Mesozoic
fault
geometry and depocenter
migration was imaged in a series of analogue models, which suggest complex
rotation of basement microplates related to changes
in extension / compression directions combined with strike-slip movements.