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COLLISION DEFORMATIONS OF THE DNIEPER-DONETS DEPRESSION Article 3. Geodynamic model of tectonic inversion

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Geology & Geochemistry of Combustible Minerals No. 1 (182) 2020, 40-51.

цифровий ідентифікатор DOI цієї статті

Оleksiy BARTASHCHUK

Ukrainian Research Institute of Natural Gases, Kharkiv, e-mail: alekseybart@gmail.соm

Abstract

The article concludes the trilogy on post-strip deformations of the Dnieper-Donets Basin. The results of tectonophysical analysis of collision deformations of the platform cover of the south-eastern part of the Dnieper-Donets Basin are summarized. Using the original method of reconstruction of stress and strain fields and tectonophysical analysis of geostructures, the system organization of inversion structural deformations of the Dnieper-Donets Basin and Donbass was studied.

The tectonic inversion of the Dnieper-Donets Basin began in the Late Hercynian epoch in the situation of a general-plate collision under the influence of the inversion rise of the Donbas. Structural and kinematic analysis of deformations shows that the folds in the depression and linear anti- and synforms of the Donets Foldbelt were formed by the natural mechanism of longitudinal bending as a result of collisional warping of horizons in the geodynamic mode of transformation. In the late Mesozoic–­­Cenozoic inversion continued in the field of right-hand horizontal-shear deformations with a variable compressive component. This mode caused the advancing and pushing of sedimentary geomass from the Donets Foldbelt to the Hercynian neo-autochthonous and syneclise autochthonous of the South-Eastern Dnieper-Donets Basin. Due to the influence of the tectonic stamp of the Donets Foldbelt, the West Donets wedge-shaped segment was formed – the orocline of geomass tectonic wedging. Geodynamic bands of injection and displacement of sedimentary geomass were formed in the front of the invasion and in the axial zone of the orocline, where the main folded zones were formed. In Forland, at the ends of the main thrusts – “tectonic rails” of the wedging, an advanced scaly compression fan was formed. In the hinterland of the orocline, folded suture zones are formed by the roots of the covers of thrusting.

The original geodynamic model of tectonic inversion provides for the destruction of the riftogenic structure in the Southeast of the Dnieper-Donets Basin by thrusting echelons of scaly covers and coulisses-articulated upliftt-folding. They compose a segment of the insertion of the geomasses of the Paleozoic cover into the territory of the West Donets Graben from the side of the Donets Foldbelt. The intrusion of the tectonic segment led to the formation of an inversion structure of a regional scale – the West Donets Cover-Folded Region.

Keywords

geodynamic model, tectonic inversion, waves of longitudinal deformations, West-Donets Cover-Folded Region.

Referenses

Bartashchuk, O. V. (2019a). Horyzontalni peremishchennia heomasyviv u kontynentalnykh ryftohennykh heostrukturakh (na prykladi Dniprovskoho-Donetskoho paleoryfta). Chastyna 3. Systemna orhanizatsiia postryftovykh reidnykh deformatsii. Visnyk Kharkivskoho natsionalnoho universytetu imeni V. N. Karazina. Seriia “Heolohiia. Heohrafiia. Ekolohiia”, 51, 26‒40. [in Ukrainian]

Bartashchuk, O. V. (2019b). Evoliutsiia napruzheno-deformovanoho stanu zemnoi kory Dniprovsko-Donetskoho paleoryftu u fanerozoi. Dopovidi NAN Ukrainy, 3, 62–71. [in Ukrainian]

Bartashchuk, O. V. (2019c). Koliziini deformatsii ryftohennoi struktury Dniprovsko-Donetskoi zapadyny. Stattia 1. Tektonika zony zchlenuvannia z Donetskoiu skladchastoiu sporudoiu. Heolohiia i heokhimiia horiuchykh kopalyn, 3 (180), 77‒90. [in Ukrainian]

Bartashchuk, O. V. (2019d). Koliziini deformatsii ryftohennoi struktury Dniprovsko-Donetskoi zapadyny. Stattia 2. Kinematychni mekhanizmy tektonichnoi inversii. Heolohiia i heokhimiia horiuchykh kopalyn, 4 (181), 1‒13. [in Ukrainian]

Dudnik, V. A., & Korchemagin, V. A. (2004). Kimmeriiskoe pole napryazhenii v predelakh Ol’khovatsko-Volyntsevskoi antiklinali Donbassa, ego svyaz’ s razryvnymi strukturami i magmatizmom. Geofizicheskii zhurnal, 26 (4), 75‒84. [in Russian]

Gintov, O. B. (2005). Polevaya tektonofizika i ee primenenie pri izuchenii deformatsii zemnoi kory Ukrainy. Kiev: Feniks. [in Russian]

Glushko, V. (Red.). (1978). Glubinnye geologicheskie srezy Dneprovsko-Donetskoi vpadiny (v svyazi s perspektivami neftegazonosnosti). Ob”yasnitel’naya zapiska k geologicheskim kartam DDV na srezakh ‒5000 i ‒6000 m masshtaba 1 : 500 000. Kiev: UKRNIIGAZ, UKRNIGRI. [in Russian]

Gonchar, V. V. (2019). Tektonicheskaya inversiya Dneprovsko-Donetskoi vpadiny i Donbassa (modeli i rekonstruktsii). Geofizicheskii zhurnal, 41 (5), 47‒86. [in Russian]

Horiainov, S., & Skliarenko, Yu. (Vidp. vyk.). (2017). Prohnoz lokalizatsii ta hazonos-nos­ti litolohichnykh pastok pivdennoho skhodu DDZ v mezhakh litsenziinykh dilianok HPU “Shebelynkahazvydobuvannia” (Ch. 1. Stvorennia strukturno-heolohichnoi osnovy). (Dohovir № 100 ShHV 2017-2017 (tema № 34.521/2017-2017)). Kharkiv: UkrNDIhaz. [in Ukrainian]

Istomin, A. N. (1996). Geodinamicheskaya model’ formirovaniya Donetskogo skladchatogo sooruzheniya na osnove idei tektoniki litosfernykh plit v svyazi s otsenkoi perspektiv neftegazonosnosti. In Nafta i haz Ukrainy‒96: materialy naukovo-praktychnoi konferentsii (T. 1, s. 176‒180). Kharkiv: UkrNDIHaz. [in Russian]

Khain, V. E. (1977). Regional’naya geotektonika. Vneal’piiskaya Evropa i Zapadnaya Aziya (s. 185‒205). Moskva: Nedra. [in Russian]

Korchemagin, V. A., & Emets, V. S. (1987). Osobennosti razvitiya tektonicheskoi struktury i polya napryazhenii Donbassa i Vostochnogo Priazov’ya. Geotektonika, 3, 49‒55. [in Russian]

Korchemagin, V. A., & Ryaboshtan, Yu. S. (1987). Tektonika i polya napryazhenii Donbassa. In Polya napryazhenii i deformatsii v zemnoi kore (s. 167‒170) Moskva: Nauka. [in Russian]

Kruhlov, S. S., & Hurskyi, D. S. (Red.). (2007). Tektonichna karta Ukrainy. Masshtab 1 : 1 000 000. Ministerstvo okhorony navkolyshnoho pryrodnoho seredovyshcha Ukrainy. Derzhavna heolohichna sluzhba Ukrainy. Kyiv. [in Ukrainian]

Krylov, N. (Red.). (1988). Karta razryvnykh narushenii i osnovnykh zon lineamentov yugo-zapada SSSR (s ispol’zovaniem materialov kosmicheskoi s”emki) masshtab 1 : 1 000 000. Moskva: Ministerstvo geologii SSSR. [in Russian]

Lukinov, V. V., & Pimonenko, L. I. (2008). Tektonika metanougol’nykh mestorozhdenii Donbassa. Kiev: Naukova dumka. [in Russian]

Maidanovich, I. A., & Radzivill, A. Ya. (1984). Osobennosti tektoniki ugol’nykh basseinov Ukrainy. Kiev: Naukova dumka. [in Russian]

Mikhalev, A. K., & Borodulin, M. I. (1976). O glubinnoi strukuture Donetskogo baseina v svete sovremennykh geofizicheskikh dannykh. Geotektonika, 4, 39‒54. [in Russian]

Milanovskii, E. E., & Nikishin, A. M. (1991). Modeli kharaktera deformatsii pri szhatii kontinental’nykh riftogennykh progibov. In Riftogeny i poleznye iskopaemye (s. 3‒15). Moskva: Nauka. [in Russian]

Polivtsev, A. V. (Vidp. vyk.). (2008). Skladannia atlasu heoloho-heofizychnykh kart prykordonnykh terytorii Ukrainy (mizhnarodnyi proekt): zvit pro NDR 654 (zakliuchnyi). Ukrainskyi derzhavnyi heolohorozviduvalnyi instytut. Kyiv, 2008. [in Ukrainian]

Popov, V. S. (1963). Donetskii basein: tektonika. In Geologiya mestorozhdenii uglya i goryuchikh slantsev SSSR (T. 1, s. 103‒151). Moskva: GONTI. [in Russian]

Turcotte, D. L. (1974). Membrane Tectonics. Geophysical Journal International, 36 (1), 33‒42.