Models of out-of-line deformation in structural analysis of folding of the Ukrainian Carpathians
DOI:
https://doi.org/10.24028/gzh.0203-3100.v40i1.2018.124017Keywords:
Ukrainian Carpathians, folding, longitudinal-transverse bending, out-of-line flow, modeling, reconstructionAbstract
Structural analysis and reconstruction of folding of the Ukrainian (flysh) Carpathians have been executed according to materials (cross-sections) of medium-scale geological survey. Methodic development has been used within the limits of bending and out-of-flow theories. It has been shown with the help of asymmetric folding simulation that the recapture of folds into intermediate deformed state by removal of out-of-line flow and the statistic search of the most probable orientation of compression axis is the effective method of diagnostics.
Conditions of appearance of Carparhians structures have been identified which can be a result of both longitudinal-transverse bending and horizontal out-of-line flow superimposed upon initially symmetric or asymmetrical bending folds. Within the limits of models of out-of-line deformation inclinations of compression axis and intensity of deformation are being determined which finally resulted in observed folding forms, specification of folds from different structural-facial zones of Carpathians according to the grade of their compactness and asymmetry has been shown, their genetic interpretation has been given.
References
Azhgirey G. D., 1966. Structural Geology. Moscow: Publ. House of the Moscow University, 348 p. (in Russian).
Astakhov K. P., 1989. Alpine geodynamics of the Ukrainian Carpathians: Abstract of the dis. cand. geol. and min. sci. Moscow, 22 p. (in Russian).
Bubnyak I. M., Nakapelyuk M. V., Vikhot Yu. M., 2014. Balanced geological section of the Ukrainian Carpathians at the intersection of Beregomet—Burkut. Geodynamika (1), 72—87 (in Ukrainian). http://nbuv.gov.ua/UJRN/geod_2014_1_9.
Gintov O. B., Bubnyak I. N., Vikhot Yu. M., Murovskaya A. V., Nakapelyukh M. V., Shlapinskiy V. E., 2014. Tectonophysical and palispastic sections of the Ukrainian Carpathians along the geotraverse DOBRE-3 (PANCAKE). Geofizicheskiy zhurnal 36(3), 3—33 (in Russian). doi: https://doi.org/10.24028/gzh.0203-3100.v36i3.2014.116050.
Hnylko O., 2011. The Terein Analysis and the Geological Evolution of the Carpathians. Visnyk Lvivskogo universytetu. Ser. geol. (25), 174—188 (in Ukrainian).
Gonchar V. V., 2008. Bending asymmetric folds of marginal troughs according to the data numerical experiment. Geofizicheskiy zhurnal 30(4), 60—82 (in Russian).
Gonchar V. V., 2012. The mechanism of covering formation during the accretion of sediments of the Precarpathian trough. Heolohiya i heokhimiya horyuchykh kopalyn (1-2), 117—128 (in Russian).
Gonchar V. V., 2001. Progressive non-axial deformation and problems of structural diagnostics. Dopovidi NAN Ukrayiny (9), 108—113 (in Russian).
Nakapelyuk M. V., Bubnyak I. M., 2013. Balanced cross-section of the outcrop “Tartak” (Skyba nappe of the Ukrainian Carpathians). Geofizicheskiy zhurnal 35(3), 105—114 (in Ukrainian).
Nikolya A., 1992. Fundamentals of rock deformation. Moscow: Mir, 167 p. (in Russian).
Patalakha Ye. I., 1985. Tectonofacial analysis of the folded structures of the Phanerozoic. Moscow: Nauka, 168 p. (in Russian).
Patalakha Ye. I., Gonchar V. V., Senchenkov I. K., Chervinko O. P., 2003. Elements of the geodynamics of the Carpathians. Kiev: EKMO, 151 p. (in Russian).
Patalakha E. I., Lukienko A. I., Gonchar V. V., 1995. Tectonic flows as the basis of understanding of geological structures. Kiev: Feniks, 160 p. (in Russian).
Patalakha Ye. I., Smirnov A. V., Polyakov A. I., 1974. Genetic types of geosynclinal folding. Alma-Ata: Nauka, 254 p. (in Russian).
Popov Ye. P., 1986. Theory and calculation of flexible elastic rods. Moscow: Nauka, 294 p. (in Russian).
Terkot D., Schubert J., 1985. Geodynamics. Pt. 1, 2. Moscow: Mir, 730 p. (in Russian).
Gąga³a £., Vergés J., Saura E., Malata T., Ringenbach J.-C., Werner P., Krzywiec P., 2012. Architecture and orogenic evolution of the northeastern Outer Carpathians from cross-section balancing and forward modeling. Tectonophysics 532—535, 223—241. doi: 10.1016/j.tecto.2012.02.014.
McKenzie D., 1979. Finite deformation during fluid flow. Geophys. J. Roy. Astron. Soc. 58, 689—715.
Weijermars R., Poliakov A., 1993. Stream functi-ons and complex potentials: implications for development of rock fabric and the continuum assumption. Tectonophysics 220(1—4), 33—50. doi: 10.1016/0040-1951(93)90222-6.
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