The relationship of the oil and gas fields of the Forecarpathian region with the regional faults system and deep structure


  • V. I. Starostenko Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Ukraine
  • A.V. Murovskaya Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Ukraine
  • T.P. Yegorova Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Ukraine
  • O.B. Gintov Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Ukraine
  • T.A. Amashukeli Subbotin Institute of Geophysics of the National Academy of Sciences of Ukraine, Ukraine



Forecarpathian oil and gas region, Borislav-Pokutianappe, basement fault, gravity field, seismic profiles


The oil and gas fields of Forecarpathian oil and gas region are compared with the structure of earth’s crust and regional faults. Most of the oil and gas condensate fields are localized in Borislav-Pokutia nappe over Precarpathian Fault zone. The majority of gas fields are located in under thrusting zone of the Sambir fault, which is a gently dipping detachment connected with the Forecarpathian fault and other faults of autochthonous basement. The regional gravity low of Carpathian Foredeep is also limited from northeast by the Sambir fault and from the southwest by the Uzhok fault. The Forecarpathian fault tends to the central part of gravity low. Transverse Tyachev-Nadvorna fault displaces the gravity low and delimits the oil and gas condensate fields. Velocity model along the wide-angle reflection and refraction PANCAKE profile shows a deep (25 km) sedimentary trough under the Carpathian Orogen. The Forecarpathian fault coincides with a jump of the Moho under the trough. Along the RomUkrSeis profile under Carpathian Orogen there were revealed a sedimentary trough as deep as 15 km and a low-velocity domain under the trough. From northeast, the trough is limited by the Forecarpathian fault, which goes up to the keel structure of the Moho discontinuity. Structure of the trough under Carpathian Orogen reflects development of East European Platform margin. The earliest stage of the formation of Baltica paleocontinent passive margin is seen in the structure of the trough’s lower part. Autochthonous basement under Borislav-Pokutsky and Skiba nappes includes a Riphean Massif limited by the Krakovets, Forecarpathian and Uzhok faults. The oil and gas condensate fields are located above the Riphean Massif.

The purpose of this article is to analyze the fault system and the structure of the earth’s crust in the Forecarpathian oil and gas region, as well as their relationship with the distribution of oil and gas deposits, taking into account new WARR profiles and other geological and geophysical data.


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How to Cite

Starostenko, V. I., Murovskaya, A. ., Yegorova, T. ., Gintov, O. ., & Amashukeli, T. (2022). The relationship of the oil and gas fields of the Forecarpathian region with the regional faults system and deep structure. Geofizicheskiy Zhurnal, 44(1), 111–123.




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