NEW INSIGHTS INTO THE DEEP STRUCTURE OF THE KUNASHIR ISLAND FROM THE MAGNETOTELLURIC SOUNDING RESULTS
https://doi.org/10.5800/GT-2025-16-6-0867
EDN: HEFUJV
Abstract
The paper presents the first results of magnetotelluric (MT) sounding on Kunashir Island. MT curves were inverted for one-dimensional inhomogeneous medium using effective apparent-resistivity curves. Deep geoelectrical models of the Mendeleev Volcano’s western slope have been compared using deep seismic sounding, earthquake converted-wave method, and potential-field measurement. There have been identified electrical conductivity features of the volcano-sedimentary cover and crustal zone, and an anomalously enhanced electrical conductivity of the crust and mantle, suggesting the presence of modern-day volcanic zones. Recommendations have been formulated on further geo-electrical investigations.
About the Authors
A. A. Chernikh
Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences
Russian Federation
Competing Interests:
Russian Federation
128 Lermontov St, Irkutsk 664033
Competing Interests:
The authors declare that they have no conflicts of interest relevant to this manuscript.
I. Yu. Koulakov
Skolkovo Institute of Science and Technology
Russian Federation
Competing Interests:
Russian Federation
30-1 Bolshoy Blvd, Moscow 121205
Competing Interests:
The authors declare that they have no conflicts of interest relevant to this manuscript.
I. V. Buddo
Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences ; Siberian School of Geosciences, Irkutsk National Research Technical University
Russian Federation
Competing Interests:
Russian Federation
128 Lermontov St, Irkutsk 664033
83 Lermontov St, Irkutsk 664074
Competing Interests:
The authors declare that they have no conflicts of interest relevant to this manuscript.
A. V. Pospeev
Institute of the Earth’s Crust, Siberian Branch of the Russian Academy of Sciences
Russian Federation
Competing Interests:
Russian Federation
128 Lermontov St, Irkutsk 664033
Competing Interests:
The authors declare that they have no conflicts of interest relevant to this manuscript.
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Review
For citations:
Chernikh A.A., Koulakov I.Yu., Buddo I.V., Pospeev A.V. NEW INSIGHTS INTO THE DEEP STRUCTURE OF THE KUNASHIR ISLAND FROM THE MAGNETOTELLURIC SOUNDING RESULTS. Geodynamics & Tectonophysics. 2025;16(6):867. (In Russ.) https://doi.org/10.5800/GT-2025-16-6-0867. EDN: HEFUJV
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