Zones of decompaction of the Earth crust of the central part of the Ukrainian Shield (according to materials of petrophysical and seismigravitational modeling)
P-velocity and density of rocks depend considerably on temperature and pressure whose influence must be taken into consideration in calculating these parameters at different depths. For the first time, this paper presents experimental data on a P-wave velocity and density change for different rock types versus a change of temperature and pressure with the depth. Based of thermobaric, petrophysical and seismo-gravity modeling, a clarified cross-section of material composition has been obtained for the area in the central part of the Ukrainian Shield. Local domains of decreasing rock density have been revealed, which mostly coincide with the low velocity zone and are produced by deep thermobaric conditions. Such zones of decreasing in material density can be served as one of diagnostic indicators in searching for deposits of mineral resources.
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Burtnyy P. A., Korchin V. A., Karnaukhova E. E., 2013. Modelling material composition of the deep horizons of the earth's crust (a new concept of interpretation of geophysical data). Saarbrücken: Lambert Akadem. Publ., 188 p. (in Russian).
Geological map of the crystalline basement of the Ukrainian shield. 1: 500 000. An explanatory note, 1983. Kiev, 101 p. (in Russian).
State geological map of Ukraine. 1: 200 000. Central Ukrainian series. Leaf M-36-XXXII (Novoukrayinka), 2001. Kyiv, 119 p. (in Ukrainian).
State geological map of Ukraine. 1: 200 000. Central Ukrainian series. Leaf M-36-XXXIII (Novoukrayinka), 2007. Kyiv, 102 p. (in Ukrainian).
Ilchenko T. V., Kryuchenko V. A., 1981. Results of integrated interpretation of seismic and gravity data on the profile XXV Pyatikhatki—Babanka. Geofizicheskiy zhurnal 3(1), 94—104 (in Russian).
Kalyayev G. I., Komarov O. M., 1972. Kirovograd block. In: Tectonics Ukrainian Shield. Kyiv: Naukova Dumka, P. 137—184 (in Ukrainian).
The Kirovograd ore area. Deep structure. Tectonophysical analysis. Ore deposits, 2013. Eds. V. I. Starostenko, O. B. Gintov. Kiev: Prastyi Ludy, 2013. 500 p.
Koval’ V. B., Valasis A. G., 1989. Problem of the anothosite-rapakivi-granite association. Geologicheskiy zhurnal (2), 48—54 (in Russian).
Korchin V. A., 2014. Thermobaric modeling anomalies increased porosity in the rocks of the crust — the possible horizons of migration and localization of deep hydrocarbon. Glubinnaya neft 2(9), 1434—1448 (in Russian).
Korchin V. A., 2013a. Crustal low-velocity zone — promising horizons of localization of deep hydrocarbon. Glubinnaya neft 1(8), 1099—1116 (in Russian).
Korchin V. A., 2013b. Thermodynamics crustal zones of low seismic velocity (a new scientific hypothesis). Saarbrücken: Lambert Akadem. Publ., 280 p. (in Russian).
Korchin V. A., Burtnyy P. A., Karnaukhova E. E., 2014. Thermodynamic violation linear relationship "speed-density" of rocks in the Earth's crust: Proceedings of the XIV International Conference "Physical-chemical and petrophysical studies in Earth Sciences" .Moscow: IGEM RAS, P. 107—110 (in Russian).
Korchin V. A., Burtnyy P. A., Karnaukhova O. E., 2014. Features thermobaric gravity-seismic petrophysical modeling of deep horizons of the lithosphere. Seismological and geophysical studies in seismically active areas: Proceedings of the seminar, dedicated to the memory T. Z. Verbitskiy and Yu. T. Verbitskiy, 3—5 June 2014. Lviv: Spolom, P. 99—103 (in Ukrainian).
Korchin V. A., Burtnyy P. A., Kobolev V. P., 2013. Thermobaric petrophysical modeling in geophysics. Kiev: Naukova Dumka, 312 p. (in Russian).
Krasovskiy S. S., 1981. Reflection of the dynamics of the crust of the continental type in the gravitational field. Kiev: Naukova Dumka, 264 p. (in Russian).
The lithosphere of central and eastern Europe. Geotraverses IV, VI, VIII, 1988. Ed. A. V. Chekunov. Kiev: Naukova Dumka, 171 p. (in Russian).
Lukin A. E., 2014. Hydrocarbon potential of the great depths and perspectives of its development in Ukraine. Geofizicheskiy zhurnal 36(4), 3—23 (in Russian).
Lutts B. G., 1974. Petrology deep zones of the continental crust and upper mantle. Moscow: Nauka, 304 p. (in Russian).
Seismogravitational modeling in the study of the lithosphere, 1994. Eds. V. I. Starostenko, Ya. Shvantsar. Kiev: Naukova Dumka, 292 p. (in Russian).
Starostenko V. I., Kazanskiy V. I., Drogitskaya G. M., Makivchuk O. F., Popov N. I., Tarasov N. N., Tripol’skiy A. A., Sharov N. V., 2007. Contact surface structures Kirovograd ore district (Ukrainian shield) with local heterogeneities of the crust and the Moho topography. Geofizicheskiy zhurnal 29(1), 3—21 (in Russian).
Strygin A. I., 1978. Petrology and ore formations of the Precambrian Ukrainian Shield. Kiev: Naukova Dumka, 257 p. (in Russian).
Shcherbakov I. B., 1975. Petrography of the Precambrian rocks of the central part of the Ukrainian shield. Kiev: Naukova Dumka, 278 p. (in Russian).
Shcherbakov I. B., 2005. Petrology of the Ukrainian shield. Lviv: ZUKTS, 364 p. (in Russian).
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