DOI: https://doi.org/10.24028/gzh.0203-3100.v38i4.2016.107807

Tectonic conditions of formation of ore-bearing structures of the Peri-Azovian megablock of the Ukrainian Shield (Dibrovska as an example)

L. S. Os’machko

Abstract


According to previous studies, the structural pattern of the eastern part of the Ukrainian shield, which was formed during several stages of essentially landslide transformations of crystalline basement, corresponds to dislocation system of displacement-rotation, formation of which took place in Paleoproterozoic. Linear components of the system have got features of formation under geologically-dynamic displacement-pressure conditions; the arched ones – under displacement-rotation conditions. It has been grounded that Dibrovska ore-bearing structure and other similar ones were generated synchronously with the mentioned components of the Peri-Azovian dislocation system.  It has been shown that the history of formation of ore minerals, aggregates and bodies is the same as of rock-forming minerals aggregates and ore-bearing bodies. Confinement of ore bodies to pushed forward shadows of pressure in Proterozoic structural pattern is the key search characteristic.

Keywords


dislocation system; structures; ore bodies; structural cells

References


Artemenko G.V., Samborskaya I. A., Shvayka I. A., Kalinin V. I., 2010. Peculiarities of Granitoid Magmatism in Gulyaipole Granite-Greenstone Structure (Peri-Azovian Megablock of the Ukrainian Sield). Mineralogicheskiy zhurnal 32(4), 63—76 (in Russian).

Bibikova E. V., Lobach-Zhuchenko S. B., Artemenko G. V., Klaesson C., Kovalenko A. V., Krylov I. N., 2008. Late Archean Magmatic Complexes of the Azov Terrane, Ukrainian Sield: Geological Setting, Isotopic Age, Souces of Material. Petrologiya 16(3), 227—247 (in Russian).

Geological-geoelectric model of Orehovo-Pavlograd suture zone of the Ukrainian Shield, 2005. Ed. N. Ya. Azarov. Kiev: Naukova Dumka, 190 p. (in Russian).

Geochronology of the Early Precambrian Ukrainian Shield (Archean), 2005. Ed. N. P. Shcherbak. Kiev: Naukova Dumka, 243 p. (in Russian).

Gintov О.B., Orliuk M. I., Mychak S. V., Bakarzhieva M. I., Farfulyak L.V., 2008. Subotsko-moshorinsky stages of dislocation each crust of the Ukrainian Shield. Geofizicheskiy zhurnal 30(6), 23—38 (in Russian).

Granitoids of the Ukrainian shield. Petrochemicals, geochemistry, ore content. Handbook, 1993.Ed. N. P. Shcherbak. Kiev: Naukova Dumka, 231 p. (in Russian).

Yegоrov D.G., 1994. Structural-material markers of selforganization systems in the iron-deposits of the Kolskiy peninsula. Extended abstract of candidate's thesis. Sankt-Peterburg, 20 p. (in Russian).

Іsakov L.V., Paranko І. S., Sukach V. V., 2014. Sequence formed of granitoids complex’s of the Midlprydniprovska and Westazov megastructures of the Ukrainian Shield from the point of view of plum-tectonic. Early Precambrian (3,6—1,6 GA) geochronology and geodynamics of the Eurasian continent. Abstracts of International scientific conference. Kiev: IGMR, P. 60—61 (in Ukrainian).

Kichurchak V. M., Boyko А. Z., Berzenin B. Z., 1991. About sector of sachkinskaia formation of the centralpriazovskaia series in nordic round Dibrovskaia structure (Western Peri-Azovian). Geologicheskiy journal (4), 101—107 (in Russian).

Correlation geochronology sham of early Precambrian of the Ukrainian Shield, 2004. Сompilers K. Yu. Yesypchuk, O. B. Bobrov, L. M. Stepanyuk, M. P. Shcherbak, Ye. B. Hlevaskyy, V. M. Skobelyev, A. S. Drannyk, M. V. Heychenko. Kiev: UkrDGRІ (in Ukrainian).

Metalogenic map of Ukraine, 2002. 1 : 1000 000. Ed. D. S. Hurskyy. Kyiv: State geological Survey of Ukraine, 6 p. (in Ukrainian).

Osmachko L. S., 2014. About the variations of geochemical composition of granitoids of the Peri-Azovian megablock of Ukrainian shield with tectonic activity. Naukovyy visnyk NHU (6), 15—21 (in Russian).

Osmachko L. S., 2004. Types, conditions and forming stages of dislocation tectonics of Sorokinskaya zone and adjacent territory (from the point of view of tectonofacies analysis: Extended abstract of candidate's thesis. Kyiv, 25 p. (in Ukrainian).

Patalakha E. I., 2005. The geodynamic modelling a types geological structures. Kiev: ЕКМО, 144 p. (in Russian).

Patalakha E.I., 1970. The mechanism of birth flow-structures in the shear-zones. Almaty: Nauka, 215 p. (in Russian).

Patalakha E. I., Lukienko A. I., Gonchar V. V., 1995. Tectonic flows as a basis for understanding the geological structures. Kiev: Feniks, 159 p. (in Russian).

Perspectives development of uranium raw basis of nuclear energetic of the Ukrainian, 2014. Ed. G. V. Lysychenko. Кyiv: Naukova Dumka, 355 p. (in Ukrainian).

Sеmka V. А., Ponomarenko А. N., Bondarenko S. N., Donskoy N. A., Shumlyanskiy L. V., Melnikova E. E., 2010. Rare-earth-uranium-thorium Dibrovskoe deposit in the Peri-Azovian megablock of the Ukrainian Shield. Heokhimiya ta rudoutvorennya (28), 48—76 (in Russian).

Slenzak О. I., 1984. Local structures of strain zones of the Precambrian. Кiev: Naukova Dumka, 102 p. (in Russian).




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