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Monitoring of Subsidence in Berezniki City (Perm Krai) by SAR Interferometry. Method of Persistent Scatterers
Pleiades Publishing Ltd - Tập 59 Số 6 - Trang 1066-1078 - 2023
I. P. Babayants, A. A. Baryakh, В. О. Михайлов, Е. П. Тимошкина, M. S. Volkova, С. А. Хайретдинов
Magnetostratigraphy of the Ordovician Angara/Rozhkova River section: Further evidence for the Moyero reversed superchron
Pleiades Publishing Ltd - Tập 48 - Trang 297-305 - 2012
V. E. Pavlov, R. V. Veselovskiy, A. V. Shatsillo, Y. Gallet
We present new magnetostratigraphic results obtained from a well-dated Ordovician key section located along the Angara River, near the terminus of the Rozhkova River (southern Siberian platform). More than 220 samples were thermally demagnetized up to 670°C in order to isolate their characteristic ancient magnetization. Samples from the Arenig, the Llanvirn and the Llandeilo stages are all (but tw...... hiện toàn bộ
Creepex of Kamchatka shallow earthquakes
Pleiades Publishing Ltd - Tập 44 - Trang 209-225 - 2011
S. A. Boldyrev, V. I. Levina
Results of investigation of the lithosphere in the Kamchatka seismic focal zone from dynamic characteristics of earthquake records obtained at regional stations are presented. It is assumed that the specificity of the source zone can be estimated by the relation Cr = K P − bK S −...... hiện toàn bộ
Rossby waves and cascade phenomena
Pleiades Publishing Ltd - - 2012
M. Yu. Reshetnyak
Nonlinear triad interactions in the Navier-Stokes equation describing quasi-geostrophic thermal convection in a spherical layer are considered. The analysis provides an insight into the nature of kinetic energy transfer across the spectrum and allows us to assess the degree of nonlocality in the energy transfer. The distinguishing feature of the spherical problem is the emergence of the Rossby wav...... hiện toàn bộ
Separation of a variable electric field into potential and induced components
Pleiades Publishing Ltd - Tập 44 Số 6 - Trang 507-509 - 2008
Svetov, B. S.
It is shown that external exciters of a variable electromagnetic field can always be represented in the form of superposition of a potential electric field and an eddy electric current and the variable electric field excited by them in an arbitrary heterogeneous medium can always be separated into potential and induced components, differently reflecting the geoelectric structure. These distinction...... hiện toàn bộ
On the precession driven geodynamo
Pleiades Publishing Ltd - Tập 42 - Trang 460-466 - 2006
S. L. Shalimov
Formation of flow structures in the Earth’s liquid core enclosed in a precessing and rotating shell (mantle) is examined within the hydrodynamic approach. The kinematics and energetics of the motions in the Earth’s core initiated by precession allow one to regard these motions as a possible geodynamo mechanism at an early evolutionary stage of the Earth (prior to the formation of the solid core). ...... hiện toàn bộ
Structure of the upper mantle in Asia from phase and group velocities of Rayleigh waves
Pleiades Publishing Ltd - Tập 44 - Trang 622-630 - 2008
T. B. Yanovskaya, V. M. Kozhevnikov, O. A. Solovei, K. R. Akchurin
Dispersion curves of phase velocities of Rayleigh waves are determined by the method of frequency-time analysis in a range of periods of 10–200 s from data of 43 interstation traces in Central Asia. Because the joint use of phase and group velocities significantly decreases the uncertainty in the determination of S wave velocity structures, the same traces were used for calculating group velocitie...... hiện toàn bộ
Deep Electrical Conductivity Anomalies in the Chaun Bay Region Based on Magnetic Variation Sounding Data
Pleiades Publishing Ltd - Tập 59 - Trang 765-780 - 2023
S. S. Starzhinskii, D. A. Sormakov
Abstract—This paper discusses the results of magnetic variation soundings at two sites in the eastern Arctic, in the Chaun Bay region, at the Pevek and Valkarkai weather stations, by using the ModEM program to perform a three–dimensional (3D) inversion of tippers. The inversion has produced a geoelectric model of the region in a subsurface area of 300 × 300 × 200 km. The moduli of tippers at both ...... hiện toàn bộ
Effect of earthquakes on ambient noise cross-correlation function
Pleiades Publishing Ltd - Tập 47 - Trang 747-756 - 2011
T. B. Yanovskaya, T. Yu. Koroleva
Surface wave tomography method based on analysis of ambient noise is widely used during the last decade. It is assumed that correlated component of noise is composed of surface waves generated by sources distributed over the Earth’s surface more or less uniformly. In such a case the cross-correlation function (CCF) at two stations may be considered as the Green’s function of surface wave. This fun...... hiện toàn bộ
Results of paleomagnetic study of Early Proterozoic rocks in the Baikal Range of the Siberian craton
Pleiades Publishing Ltd - Tập 43 - Trang 855-867 - 2007
V. Yu. Vodovozov, A. N. Didenko, D. P. Gladkochub, A. M. Mazukabzov, T. V. Donskaya
This paper presents paleomagnetic results obtained from the study of Early Proterozoic rocks in the Baikal Range of the Siberian craton, namely, the 1850–1880-Ma volcanicalstic rocks of the Akitkanskian series of the North Baikal volcanic-plutonic belt) and 1674-Ma basic dikes of the Chaya complex within the massif. The data of this work are used to reconstruct the development of the Siberian crat...... hiện toàn bộ
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