Comparison of the 2D and quasi-3D geoelectric models of the Ukrainian Eastern Carpathians and their link to the tectonic structure

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985530%3A_____%2F19%3A00509366" target="_blank" >RIV/67985530:_____/19:00509366 - isvavai.cz</a>

Result on the web

<a href="https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018TC005311" target="_blank" >https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018TC005311</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2018TC005311" target="_blank" >10.1029/2018TC005311</a>

Result language

angličtina

Original language name

Comparison of the 2D and quasi-3D geoelectric models of the Ukrainian Eastern Carpathians and their link to the tectonic structure

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10505 - Geology

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Tectonics

ISSN

0278-7407

e-ISSN

—

Volume of the periodical

38

Issue of the periodical within the volume

11

Country of publishing house

US - UNITED STATES

Number of pages

17

Pages from-to

3818-3834

UT code for WoS article

000495253800001

EID of the result in the Scopus database

2-s2.0-85074811102