Velocity divisibility of the mantle beneath the Ukrainian Shield
Journal Title: Геофизический журнал - Year 2016, Vol 38, Issue 4
Abstract
Within the limits of three-dimensional Tailor approximation P-velocity model of the mantle under the Ukrainian shield it has been shown that the mantle under it, according to its velocity characteristics, can be subdivided into 3 domains: the Western, the Central and the Eastern ones. The Volynian and Podolian mega-blocks belong to the Western domain, the Central domain includes the Ross, the Bug, the Ingul mega-blocks and the western part of the Middle-Dnieper mega-block limited by the Derezovata fault system and the Eastern domain includes the eastern part of Middle-Dnieper mega-block and the Peri-Azovian mega-block. This division remains for the interval 50—500 km of the upper mantle, its transitional zone, and restores at the depths 700—800 km of the splitting zone 1. The mentioned division is substantiated by the connection at the depth of 100—250 km of the mantle under the Ukrainian Shield with velocity structures of the Sarmatian segment of East European Platform; at the depths of 350—600 km by the connection with velocity structures of the mantle under the Black Sea; at the depths of 700—800 km the connection of velocity structures of the Sarmatian segment of East European Platform and the western part of the Black Sea restores.
Authors and Affiliations
T. A. Tsvetkova, I. V. Bugaenko, L. N. Zaets
Keywords
Related Articles
- EP ID EP197414
- DOI -
- Views 88
- Downloads 0
The experiment of integrated mobile technologies used for deep hydrocarbon accumulation prospecting and geophysical mapping at the West Antarctic bottom structures
The data obtained confirm earlier assumption about possible existence of large accumulations of oil and gas hydrates in this part of the West Antarctica. Their formation in the structures of passive continental margin of...
On conceptual grounds of diagnostics and monitoring of geosystems
Within the trend of ideas, methods and approaches of nonlinear dynamics basic features of geo-systems are being considered on high-quality level. It is noticed that evolution of processes and objects in lithosphere canno...
Mantle origin of methane in the Black Sea
A new distribution map of gas seeps and mud volcanoes has been compiled of the Black Sea. It has been derived from the published coordinates for ca. 5000 gas seeps and 80 mud volcanoes. An analysis of the stable isotopic...
Seismoelectromagnetism and spatio-temporal structures
New ideas, approaches and methods of modern seismology are being considered, which are focused on highly organized spatio-temporal structures in dissipative media far from thermodynamic equilibrium, auto-structures in pa...
Comparative characteristic of alternative density models along the DSS profile N 17
Analysis of density model plotted on the base of tomographic calculations has shown that the hypothesis of the obduction nature of jointing of the Crimea and the Black Sea is groundless. Earth's crust deep structure obta...