The relationship of the oil and gas fields of the Forecarpathian region with the regional faults system and deep structure
Keywords: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.
Amashukeli, T.A. (2021). The structure of the lithosphere of the south-western margin of the East European Platform according to the wide-angle deep seismic soundings profiles. Extended abstract of candidate’s thesis. Kyiv, 24 p. (in Ukrainian).
Galetskyi, L.S. (Ed.). (2001). Atlas: Geology and minerals of Ukraine. Kyiv: Publ. of NASU, Ministry of Ecology and Natural Resources of Ukraine, 168 p. (in Ukrainian).
Krupskyi, Yu.Z. (Ed.) (2007). Geological map of the Ukrainian Carpathians, scale 1: 100 000. Transcarpathian, Ivano-Frankivsk, Lviv, Chernivtsi regions of Ukraine. Compiled by Glushko, V.V., Kuzovenko, V.V., Shlapinskyi, V.E. Report of CJSC «Concern Nadra». «Nadra Concern» Fund, 228 p. (in Ukrainian).
Gintov, O.B., Bubnyak, I.N., Bubnyak, A.N., Vikhot, Yu.M., Mychak, S.V., & Nakapelyukh, M.V. (2013). Stress-strain state and dy¬namics of the allochthonous part of the Precarpathian trough in connection with oil and gas content (according to tectono-physical data). Geofizicheskiy Zhurnal, 35(1), 75—87. https://doi.org/10.24028/gzh.0203-3100.v35i1. 2013.116333 (in Rus-sian).
Gintov, O.B., Bubnyak, I.N., Murovskaya, A.V., Vikhot, Yu.M., Nakapelyukh, M.V., & Shla¬pin¬sky, V.E. (2014). Tectonophysical and pa¬lin¬spastic cross-sections of the Ukrainian Car¬¬pa¬thi¬ans along the geotraverse DOBRE-3 (PANCAKE). Geofizicheskiy Zhurnal, 36(3), 3―34. https://doi.org/10.24028/gzh.0203-3100.v36i3.2014.116050 (in Russian).
Dolenko, G.N. (Ed.). (1980). Deep structure, formation and oil and gas potential of the Ukrainian Carpathians. Kiev: Naukova dumka. 147 p. (in Russian).
Glushko, V.V., & Kruglov, S.S. (Eds.). (1971). Geological structure and combustible minerals of the Ukrainian Carpathians. Moscow: Nedra, 389 p. (in Russian).
Hnylko, O.M. (2012). Tectonic zoning of the Carpathians in the light of terrain tectonics. Article 2. Flysch Carpathians — an an-cient accretion prism. Geodynamika, (1), 67—78 (in Ukrainian).
Hnylko, O., Hnylko, S., Kulianda, M., & Marchenko, R. (2021). Tectonic-sedimentary evolution of the advanced part of the thrust structure of the Ukrainian Carpathians. Heolohiya i heokhimiya horyuchykh kopalyn, (1-2), 45—59. https://doi.org/10.15407/ggcm2021.01-02.045 (in Ukrainian).
Gonchar, V.V (2012). The mechanism of nappes formation during the accretion of sediments of the Carpathian Foredeep. Heolohiya i heokhimiya horyuchykh kopalyn, 158—159 (1—2), 117—128 (in Russian).
Gribik, Ya.G. (2018). Perspective hydrocarbon objects in the rocks of the crystalline basement of Belarus. VIth Kudryavtsev Readings. All-Russian conference on deep genesis of oil and gas. Moscow, CGE, 22—24 Oktober 2018 (pp. 100—104) (in Russian).
State Geological Map of Ukraine, Drohobych Letter (scale 1:200,000). (2005). DNVP «Geoinform of Ukraine» (in Russian).
Zaiats, Kh.B. (2013). The deep structure of the earth bowels of Western region of Ukraine on the basis of seismic studies and the direction of exploration for oil and gas. Lviv: Tsentr Evropy, 80 p. (in Ukrainian).
Kolodii, V.V. (2004). Carpathian Oil Province. Lviv-Kyiv: Ukrainian Publishing Center, 388 p. (in Ukrainian).
Kruglov, S.S. & Tsypko, A.K. (1988). Tectonics of Ukraine. Moscow: Nedra, 254 p. (in Russian).
Krupskyi, Yu.Z. (2001). Geodynamic conditions of formation and oil and gas potential of Carpathian and Volyn-Podilsky regions of Ukraine. Kyiv: Publication of UkrDGRI, 144 p. (in Ukrainian).
Kutas, R.I. (2005). Geodynamic processes and thermal state of the lithosphere of the Carpathian region. In Research of modern geodynamics of the Ukrainian Carpathians (pp. 133—139). Kyiv: Naukova Dumka (in Ukrainian).
Kutas, R.I. (2021). Deep degasion and oil and gas containment of the eastern (ukrainian) carpathians: geodynamic and geothermal aspects. Geofizicheskiy Zhurnal, 44(6), 23—41. https://doi.org/10.24028/gzh.v43i6.251551 (in Ukrainian).
Mykhailov, V.A., Kurilo, M.V., Omelchenko, V.G., Monchak, L.S., Ogar, V.V, Zagnitko, V.M., Omelchuk, O.V., Shunko, V.V., & Hulii, V.М. (2009). Combustible minerals of Ukraine: Textbook. Kyiv: KNT, 376 p. (in Ukrainian).
Murovska, A., Amashukeli, T., & Alekhin, V. (2019). Stress fields and deformation regimes within the Ukrainian part of the East-ern Carpathians according to tectonophysical data. Geofizicheskiy Zhurnal, 41(2), 84—98. https://doi.org/10.24028/gzh.0203-3100.v41i2.2019.164455 (in Ukrainian).
Sorokhtin, O.G., Chilingar, G.V., & Sorokhtin, N.O. (2009). Theory of Earth development (origin, evolution and tragic future of the Earth). Moscow-Izhevsk: Publ. by the Institute of Computer Research, SIC «Regular and Chaotic Dynamics», 752 p. (in Russian).
Pavlyuk, M., Shlapinskyi, V., Savchok, O., & Tarnovskyi, M. (2019). Prospects of the potential for oil and gas presence in the north-western part of inner flysh covers of the Ukrainian Carpathians. Heolohiya i heokhimiya horyuchykh kopalyn, (2), 5—27 (in Ukrainian).
Patalakha, E.I., Gonchar, V.V., Senchenkov, I.K., & Chervinko, O.P. (2003). Elements of Carpathian geodynamics. Forecast of hydrocarbons and seismic hazards. Kiev: EKMO,151 p. (in Russian).
Bogdanova, S.V., Bingen, B., Gorbatschev, R., Kheraskova, T.N., Kozlov, V.I., Puchkov, V.N., & Volozh, Yu.A. (2008). The East European Craton (Baltica) before and during the assembly of Rodinia. Precambrian Research, 160(1—2), 23—45. https://doi.org/10.1016/j.precamres. 2007.04.024.
Krzywiec, P., Poprawa, P., Mikołajczak, M., Mazur, S., & Malinowski, M. (2018). Deeply concealed half-graben at the SW margin of the East European Craton (SE Poland) — Evidence for Neoproterozoic rifting prior to the break-up of Rodinia. Journal of Palaeogeography, 7(1), 88—97. https://doi.org/10.1016/j.jop.2017.11.003.
Metelkin, D.V., Vernikovsky, V.A., & Matushkin, N.Yu. (2014). Arctida between Rodinia and Pangea. Precambrian Research, 259, 114—129. http://dx.doi.org/10.1016/j.precamres. 2014.09.013.
Nakapelyukh, M., Bubniak, I., Yegorova, T., Murovskaya, A., Gintov, O., Shlapinskyi, V., & Vikhot, Yu. (2017). Balanced geo-logical cross-section of the outer Ukrainian Carpathians along the PANCAKE profile. Journal of Geodynamics, 108, 13—25. https://doi.org/10.1016/j.tecto.2017.11.009.
Starostenko, V., Janik, T., Kolomiyets, K., Czuba, W., Środa, P., Grad, M., Kovács, I., Stephenson, R., Lysynchuk, D., Thybo, H., Arte¬mi¬eva, I.M., Omelchenko, V., Gintov, O., Kutas, R., Gryn, D., Guterch, A., Hegedűs, E., Kom¬minaho, K., Legostaeva, O., Tiira, T., & Tol¬kunov, A. (2013). Seismic velocity model of the crust and upper mantle along profile PANCAKE across the Carpathians between the Pannonian Basin and the East European Craton. Tectonophysics, 608, 1049—1072. https://doi.org/10.1016/j.tecto.2013.07.008.
Starostenko, V., Janik, T., Mocanu, V., Stephenson, R., Yegorova, T., Amashukeli, T., Czuba, W., Środa, P., Murovskaya, A., Kolomiyets, K., Lysynchuk, D., Okoń, J., Dragut, A., Omelchenko, V., Legostaieva, O., Gryn, D., Mechie, J., & Tolkunov, A. (2020). RomUkrSeis: Seismic model of the crust and upper mantle across the Eastern Carpathians — From the Apuseni Mountains to the Ukrainian Shield. Tectonophysics, 794, 228620. https://doi.org/10.1016/j.tecto.2020.228620.
How to Cite
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1. Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2. Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3. Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).