Electric resistivity distribution in the Earth’s crust and upper mantle for the southern East European Platform and Crimea from area-wide 2D models

Logvinov, I.M.; Tarasov, V. N.

doi:10.1007/s11600-018-0125-2

Cited by 9 publications

(11 citation statements)

References 13 publications

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“…The Reduced Basis Occam's algorithm (Siripunvaraporn & Egbert, ) was used for joint transverse electric + TM + vertical magnetic responses inversion. For details, see Logvinov and Tarasov (). Vertical sections for individual profiles were presented in Gordienko et al ().…”

Section: Experimental Data and Results Of Geoelectric Studiesmentioning

confidence: 99%

“…Experimental induction arrows demonstrate clear reversals over the anomaly axis along the whole Carpathians arc from former Czechoslovakia through Poland and Ukraine to Romania (Jankowski et al, 1985;Logvinov & Tarasov, 2003;Pinna et al, 1992;Praus & Pěčová, 1991). In Figure 2a, the induction arrows over the Ukrainian Carpathians are shown for the period T = 1,600 s. The methodology of survey is described in Logvinov and Tarasov (2018).…”

Section: Experimental Data and Results Of Geoelectric Studiesmentioning

confidence: 99%

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Comparison of the 2‐D and Quasi‐3‐D Geoelectric Models of the Ukrainian Eastern Carpathians and Their Link to the Tectonic Structure

Kováčiková

Logvinov²,

Tarasov³

2019

Tectonics

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We present results of a study of the electrical conductivity distribution beneath the Ukrainian Eastern Carpathians where the Carpathian arc turns to the southeast and reaches the maximum curvature further in the Romanian territory. We have used the magnetotelluric and magnetovariational data in the period range of 1–6,000 s collected by geoelectric groups from several countries during deep induction experiments, which covered the studied area by a number of field stations clustered along profiles crossing the Carpathian arc. In this work, we compare the 2‐D and quasi‐3‐D thin sheet inverse models, which allow us to constrain both the geometry and electrical properties of the anomalous conductivity structures beneath the Carpathians. Comparison of the inverse results with the Carpathians tectonics indicates that the Carpathian conductivity anomaly within the Polish and Slovak territory is located approximately between the Magura nappe front and the Pieniny Klippen Belt. In Ukraine, where the Magura nappe narrows and disappears, the anomaly reaches the front of the Outer Carpathians. The resulting quasi‐3‐D model of the conductivity structure beneath the Carpathians is compared with other geophysical and geological data within the region. The relation of the position of the conductors to the heat flow models and to location of the earthquakes sources indicates possible geological mechanisms, such as saline pore fluids, thin films of grain boundary graphite, or partial melting, connected with recent activation zones.

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Section: Experimental Data and Results Of Geoelectric Studiesmentioning

confidence: 99%

Section: Experimental Data and Results Of Geoelectric Studiesmentioning

confidence: 99%

Comparison of the 2‐D and Quasi‐3‐D Geoelectric Models of the Ukrainian Eastern Carpathians and Their Link to the Tectonic Structure

Kováčiková

Logvinov²,

Tarasov³

2019

Tectonics

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“…Mesozoic to Cenozoic deposits of the Carpathian foredeep are charac terized by ρ values varying from 3-5 ohmm to 10-30 ohmm, whereas the resistivity of Paleozoic rocks varies from 30-60 ohmm to 100-150 ohmm. Details of the 2D modelling along the profiles were described in Logvinov & Tarasov (2018, 2019. Root mean square deviation rms in the inversion varied between 1.65 and 2.8.…”

Section: Geoelectric Investigationsmentioning

confidence: 99%

The relation of the seismicity in the eastern part of the Ukrainian Carpathians and the distribution of electrical conductivity in the Earth’s crust

Kováčiková

Logvinov

Tarasov

2019

Geologica Carpathica

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We present results of a study of the peculiarities of the seismicity and electrical conductivity distribution beneath the Ukrainian Eastern Carpathians. Based on the analysis of seismic data for the years 1999–2016, specific zones of concentration of earthquake sources related to the principal fault systems and their intersections have been distinguished. This paper covers two zones, one linked to the contact of the Outer Carpathians and the Carpathian Foredeep and another one linked to the fault system transverse to the Carpathians strike. Both belts of earthquake sources concentration correlate well with the geoelectric models of the studied area obtained as a result of 2D and quasi-3D inversion. Most of the seismic events occur at the intersection of the mentioned seismic zones, at shallower depths, than the main conductive structures appear, concentrated at their marginal parts. The interrelation of both phenomena suggests their common explanation by processes occurring in active fault systems: fracturing, shear deformation, migration of highly mineralized fluids, high porous pressure, accumulation and release of tectonic stress.

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“…Геотермические данные. Несмотря на то, что территория Украины является геотермически одной из наиболее изученных в Европе, плотность пунктов определения теплового потока (ТП) в разных регионах Украины различна [Гордиенко и др., 2002, 2005, 2012] [Logvinov, Tarasov, 2018;Логвинов,Тарасов, 2019]. Определение геоэлектрических параметров было выполнено с помощью 2D инверсии вдоль широтных и меридиональных профилей (рис.…”

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“…3. Расположения профилей геоэлектрического моделирования в районах Ровенской, Хмельницкой [Логвинов,Тарасов, 2019] и Южно-Ураинской АЭС [Logvinov, Tarasov, 2018]: 1, 2 -изогипсы осадков на Украинском щите (1) и Волыно-Подольской плите (2); 3 -нулевая изолиния мощности рифейских пород. Остальные обозначения см.…”

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The results of geothermal and geoelectric studies in the regions of Rivne, Khmelnitsky and Uzhno Ukrainsk NPPs

Logvinov

Гордиенко

Tarasov

2020

Geofizicheskiy Zhurnal

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Electric resistivity distribution in the Earth’s crust and upper mantle for the southern East European Platform and Crimea from area-wide 2D models

Cited by 9 publications

References 13 publications

Comparison of the 2‐D and Quasi‐3‐D Geoelectric Models of the Ukrainian Eastern Carpathians and Their Link to the Tectonic Structure

Comparison of the 2‐D and Quasi‐3‐D Geoelectric Models of the Ukrainian Eastern Carpathians and Their Link to the Tectonic Structure

The relation of the seismicity in the eastern part of the Ukrainian Carpathians and the distribution of electrical conductivity in the Earth’s crust

The results of geothermal and geoelectric studies in the regions of Rivne, Khmelnitsky and Uzhno Ukrainsk NPPs

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