Deep structure of the western part of the Central Caucasus from geophysical data


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Abstract

The paper presents new data on seismotectonic studies along the Adygei profile in the western part of the Central Caucasus and provides an overview of deep geophysical studies of the Greater Caucasus. For the first time, comprehensive geophysical characteristics of a crustal section of the Greater Caucasus across an orogenic structure (along the Adygei profile) have been obtained with a uniform step of observations. Based on factual data obtained by such methods as converted waves from distant earthquakes, magnetotelluric sounding, and gravimagnetic surveys, sinking of the marginal part of the southern microplate into the mantle is verified. It is noted that the contemporary Alpine structure of the Greater Caucasus formed during gentle thrusting of the Earth’s crust (Scythian Plate) from the north on the consolidated crust of the southern microplate.

About the authors

A. G. Shempelev

AO Kavkazgeols”emka; Geophysical Institute of the Vladikavkaz Science Center

Email: vzaal@mail.ru
Russian Federation, Yessentuki, 357600; Vladikavkaz, 362002

V. B. Zaalishvili

Geophysical Institute of the Vladikavkaz Science Center

Author for correspondence.
Email: vzaal@mail.ru
Russian Federation, Vladikavkaz, 362002

S. U. Kukhmazov

OOO Sei-Eko-Geon

Email: vzaal@mail.ru
Russian Federation, Yessentuki, 357623

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