21 research outputs found
Dislocation loops in overheated free-standing smectic films
Static and dynamic phenomena in overheated free-standing smectic-A films are
studied using a generalization of de Gennes' theory for a confined presmectic
liquid. A static application is to determine the profile of the film meniscus
and the meniscus contact angle, the results being compared with those of a
recent study employing de Gennes' original theory. The dynamical generalization
of the theory is based on on a time-dependent Ginzburg-Landau approach. This is
used to compare two modes for layer-thinning transitions in overheated films,
namely "uniform thinning" vs. nucleation of dislocation loops. Properties such
as the line tension and velocity of a moving dislocation line are evaluated
self-consistently by the theory.Comment: 16 pages, 8 figure
ΠΠΠΠΠ’Π ΠΠΠΠΠΠΠ’ΠΠ«Π ΠΠΠΠΠ’ΠΠ ΠΠΠ Π ΠΠ€Π’ΠΠ Π¨ΠΠΠΠΠ«Π ΠΠΠ ΠΠΠ Π§Π£ΠΠ‘ΠΠΠΠ ΠΠΠΠΠΠ’Π Π―Π‘ΠΠΠΠ― 2003 Π³. Π ΠΠΠ ΠΠΠ ΠΠΠ’ΠΠ: ΠΠΠ’ΠΠΠΠΠ ΠΠΠΠΠ ΠΠΠΠ, Π ΠΠΠ£ΠΠ¬Π’ΠΠ’Π«
The article considers the method of observations, interpretation of data and results of electromagnetic monitoring with a controlled source for one of the seismically active regions of Siberia β Mountain (Gorny) Altai. The monitoring is carried out during the aftershock period in the epicentral zone of the destructive Chuya earthquake of 2003 with M=7.3. For regular observations, a measurement technique has been developed with several modifications of the transient electromagnetics method (TEM) to determine variations in electrical resistivity and anisotropy coefficient. The long-term series of these two geoelectric parameters of the section are presented, compared with the characteristics of the ongoing seismic events. The analysis shows that variations in electrical resistance and electrical anisotropy reflect the development and gradual attenuation of aftershock activity of a powerful earthquake. The advantages of the TEM method and the chosen methodology for monitoring in complex areas are reflected.Π ΡΡΠ°ΡΡΠ΅ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΠΉ, ΠΈΠ½ΡΠ΅ΡΠΏΡΠ΅ΡΠ°ΡΠΈΠΈ Π΄Π°Π½Π½ΡΡ
ΠΈ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΌΠΎΠ½ΠΈΡΠΎΡΠΈΠ½Π³Π° Ρ ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΠ΅ΠΌΡΠΌ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠΎΠΌ Π΄Π»Ρ ΠΎΠ΄Π½ΠΎΠ³ΠΎ ΠΈΠ· ΡΠ΅ΠΉΡΠΌΠΎΠ°ΠΊΡΠΈΠ²Π½ΡΡ
ΡΠ΅Π³ΠΈΠΎΠ½ΠΎΠ² Π‘ΠΈΠ±ΠΈΡΠΈ β ΠΠΎΡΠ½ΠΎΠ³ΠΎ ΠΠ»ΡΠ°Ρ. ΠΠΎΠ½ΠΈΡΠΎΡΠΈΠ½Π³ Π²ΡΠΏΠΎΠ»Π½ΡΠ΅ΡΡΡ Π² Π°ΡΡΠ΅ΡΡΠΎΠΊΠΎΠ²ΡΠΉ ΠΏΠ΅ΡΠΈΠΎΠ΄ Π² ΡΠΏΠΈΡΠ΅Π½ΡΡΠ°Π»ΡΠ½ΠΎΠΉ Π·ΠΎΠ½Π΅ ΡΠ°Π·ΡΡΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π§ΡΠΉΡΠΊΠΎΠ³ΠΎ Π·Π΅ΠΌΠ»Π΅ΡΡΡΡΠ΅Π½ΠΈΡ 2003 Π³. Ρ Π=7.3. ΠΠ»Ρ ΡΠ΅Π³ΡΠ»ΡΡΠ½ΡΡ
Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΠΉ ΡΠ°Π·ΡΠ°Π±ΠΎΡΠ°Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΉ Π½Π΅ΡΠΊΠΎΠ»ΡΠΊΠΈΠΌΠΈ ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΡΠΌΠΈ ΠΌΠ΅ΡΠΎΠ΄Π° Π·ΠΎΠ½Π΄ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ΠΌ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ (ΠΠ‘Π) Π΄Π»Ρ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ Π²Π°ΡΠΈΠ°ΡΠΈΠΉ ΡΠ΄Π΅Π»ΡΠ½ΠΎΠ³ΠΎ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ ΡΠΎΠΏΡΠΎΡΠΈΠ²Π»Π΅Π½ΠΈΡ ΠΈ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ° Π°Π½ΠΈΠ·ΠΎΡΡΠΎΠΏΠΈΠΈ. ΠΡΠΈΠ²Π΅Π΄Π΅Π½Ρ ΠΌΠ½ΠΎΠ³ΠΎΠ»Π΅ΡΠ½ΠΈΠ΅ ΡΡΠ΄Ρ ΡΡΠΈΡ
Π΄Π²ΡΡ
Π³Π΅ΠΎΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΠ°Π·ΡΠ΅Π·Π°, ΡΠΎΠΏΠΎΡΡΠ°Π²Π»Π΅Π½Π½ΡΠ΅ Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠ°ΠΌΠΈ ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΡΡΠΈΡ
ΡΠ΅ΠΉΡΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΎΠ±ΡΡΠΈΠΉ. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ Π°Π½Π°Π»ΠΈΠ·Π° ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Π²Π°ΡΠΈΠ°ΡΠΈΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΡΠΎΠΏΡΠΎΡΠΈΠ²Π»Π΅Π½ΠΈΡ ΠΈ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½ΡΠ° ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°Π½ΠΈΠ·ΠΎΡΡΠΎΠΏΠΈΠΈ ΠΎΡΡΠ°ΠΆΠ°ΡΡ ΡΠ°Π·Π²ΠΈΡΠΈΠ΅ ΠΈ ΠΏΠΎΡΡΠ΅ΠΏΠ΅Π½Π½ΠΎΠ΅ Π·Π°ΡΡΡ
Π°Π½ΠΈΠ΅ Π°ΡΡΠ΅ΡΡΠΎΠΊΠΎΠ²ΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΌΠΎΡΠ½ΠΎΠ³ΠΎ Π·Π΅ΠΌΠ»Π΅ΡΡΡΡΠ΅Π½ΠΈΡ. ΠΡΡΠ°ΠΆΠ΅Π½Ρ ΠΏΡΠ΅ΠΈΠΌΡΡΠ΅ΡΡΠ²Π° ΠΌΠ΅ΡΠΎΠ΄Π° ΠΠ‘Π ΠΈ Π²ΡΠ±ΡΠ°Π½Π½ΠΎΠΉ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠΈ Π΄Π»Ρ ΠΌΠΎΠ½ΠΈΡΠΎΡΠΈΠ½Π³Π° Π² ΡΠ»ΠΎΠΆΠ½ΠΎ ΠΏΠΎΡΡΡΠΎΠ΅Π½Π½ΡΡ
ΡΠ°ΠΉΠΎΠ½Π°Ρ
Molecular simulation of chevrons in confined smectic liquid crystals
Chevron structures adopted by confined smectic liquid crystals
are investigated via molecular dynamics simulations of the Gay-Berne
model. The chevrons are formed by quenching nematic films confined
between aligning planar substrates whose easy axes have opposing
azimuthal components. When the substrates are perfectly smooth, the
chevron formed migrates rapidly towards one of the confining walls to
yield a tilted layer structure. However, when substrate roughness is
included, by introducing a small-amplitude modulation to the particle-
substrate interaction well-depth, a symmetric chevron is formed which
remains stable over sufficiently long runtimes for detailed structural
information, such as the relevant order parameters and director orien-
tation, to be determined. For both smooth and rough boundaries, the
smectic order parameter remains non-zero across the entire chevron,
implying that layer identity is maintained across the chevron tip. Also, when the surface-stabilised chevron does eventually revert to a tilted layer structure, it does so via surface slippage, such that layer integrity is maintained throughout the chevron to tilted layer relaxation process.
</p
ΠΠΠ ΠΠΠ¦ΠΠ ΠΠΠΠΠ’Π ΠΠ€ΠΠΠΠ§ΠΠ‘ΠΠΠ₯ ΠΠΠ ΠΠΠΠ’Π ΠΠ ΠΠ ΠΠΠΠΠ«Π ΠΠΠΠΠ’Π ΠΠΠΠΠΠΠ’ΠΠΠΠ ΠΠΠΠΠ’ΠΠ ΠΠΠΠ ΠΠΠ ΠΠΠΠΠΠΠ’ΠΠ ΠΠΠ’ΠΠΠΠΠ‘Π’Π Π ΠΠΠΠΠΠΠ«Π₯ ΠΠΠ
In the regions of high seismic activity, investigations of fault zones are of paramount importance as such zones can generate seismicity. A top task in the regional studies is determining the rates of activity from the data obtained by geoelectrical methods, especially considering the data on the faults covered by sediments. From a practical standpoint, the results of these studies are important for seismic zoning and forecasting of natural and anthropogenic geodynamic phenomena that may potentially occur in the populated areas and zones allocated for construction of industrial and civil objects, pipelines, roads, bridges, etc. Seismic activity in Gorny Altai is regularly monitored after the destructive 2003 Chuya earthquake (M=7.3) by the non-stationary electromagnetic sounding with galvanic and inductive sources of three modifications. From the long-term measurements that started in 2007 and continue in the present, electrical resistivity and electrical anisotropy are determined. Our study aimed to estimate the variations of these electrophysical parameters in the zone influenced by the fault, consider the intensity of the variations in comparison with seismicity indicators, and attempt at determining the degree of activity of the faults. Based on the results of our research, we propose a technique for measuring and interpreting the data sets obtained by a complex of non-stationary sounding modifications. The technique ensures a more precise evaluation of the electrophysical parameters. It is concluded that the electric anisotropy coefficient can be effectively used to characterize the current seismicity, and its maximum variations, being observed in the zone influenced by the fault, are characteristic of the fault activity. The use of two electrophysical parameters enhances the informativeness of the study.Π ΡΠ΅Π³ΠΈΠΎΠ½Π°Ρ
Ρ Π²ΡΡΠΎΠΊΠΎΠΉ ΡΠ΅ΠΉΡΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡΡ ΠΏΠΎΠ²ΡΡΠ΅Π½Π½ΡΠΉ ΠΈΠ½ΡΠ΅ΡΠ΅Ρ ΠΊ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΠ°Π·Π»ΠΎΠΌΠ½ΡΡ
Π·ΠΎΠ½ ΡΠ²ΡΠ·Π°Π½ Ρ ΡΠ΅ΠΌ, ΡΡΠΎ ΠΎΠ½ΠΈ ΠΌΠΎΠ³ΡΡ ΡΠ²Π»ΡΡΡΡΡ ΡΠ΅ΠΉΡΠΌΠΎΠ³Π΅Π½Π΅ΡΠΈΡΡΡΡΠΈΠΌΠΈ, ΠΏΠΎΡΡΠΎΠΌΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΠΈΡ
Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² Π³Π΅ΠΎΡΠ»Π΅ΠΊΡΡΠΈΠΊΠΈ ΡΠ²Π»ΡΠ΅ΡΡΡ Π°ΠΊΡΡΠ°Π»ΡΠ½ΠΎΠΉ Π·Π°Π΄Π°ΡΠ΅ΠΉ, ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎ Π΄Π»Ρ Π½Π°ΡΡΡΠ΅Π½ΠΈΠΉ, ΠΏΠ΅ΡΠ΅ΠΊΡΡΡΡΡ
ΠΎΡΠ°Π΄ΠΎΡΠ½ΡΠΌΠΈ ΠΎΡΠ»ΠΎΠΆΠ΅Π½ΠΈΡΠΌΠΈ.Β Π‘ ΠΏΡΠ°ΠΊΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠΎΡΠΊΠΈ Π·ΡΠ΅Π½ΠΈΡ ΡΡΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π²Π°ΠΆΠ½Ρ Π΄Π»Ρ Π·Π°Π΄Π°Ρ ΡΠ΅ΠΉΡΠΌΠΎΡΠ°ΠΉΠΎΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ, ΠΏΡΠΎΠ³Π½ΠΎΠ·ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΡΡ
ΠΏΡΠΈΡΠΎΠ΄Π½ΡΡ
ΠΈ ΡΠ΅Ρ
Π½ΠΎΠ³Π΅Π½Π½ΡΡ
Π³Π΅ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ²Π»Π΅Π½ΠΈΠΉ Π² Π·Π°ΡΠ΅Π»Π΅Π½Π½ΡΡ
ΡΠ°ΠΉΠΎΠ½Π°Ρ
, ΠΏΡΠΈ ΡΡΡΠΎΠΈΡΠ΅Π»ΡΡΡΠ²Π΅ ΠΏΡΠΎΠΌΡΡΠ»Π΅Π½Π½ΡΡ
ΠΈ Π³ΡΠ°ΠΆΠ΄Π°Π½ΡΠΊΠΈΡ
ΠΎΠ±ΡΠ΅ΠΊΡΠΎΠ², Π³Π°Π·ΠΎΠΏΡΠΎΠ²ΠΎΠ΄ΠΎΠ², Π΄ΠΎΡΠΎΠ³, ΠΌΠΎΡΡΠΎΠ² ΠΈ Ρ.Π΄. Π Π΅Π³ΡΠ»ΡΡΠ½ΡΠ΅ Π½Π°Π±Π»ΡΠ΄Π΅Π½ΠΈΡ Π² ΡΠ΅ΠΉΡΠΌΠΎΠ°ΠΊΡΠΈΠ²Π½ΠΎΠΉ Π·ΠΎΠ½Π΅ ΠΠΎΡΠ½ΠΎΠ³ΠΎ ΠΠ»ΡΠ°Ρ ΠΏΠΎΡΠ»Π΅ ΡΠ°Π·ΡΡΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ Π§ΡΠΉΡΠΊΠΎΠ³ΠΎ Π·Π΅ΠΌΠ»Π΅ΡΡΡΡΠ΅Π½ΠΈΡ 2003 Π³. Ρ Π=7.3 Π²ΡΠΏΠΎΠ»Π½ΡΡΡΡΡ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ Π½Π΅ΡΡΠ°ΡΠΈΠΎΠ½Π°ΡΠ½ΠΎΠ³ΠΎ ΡΠ»Π΅ΠΊΡΡΠΎΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠ³ΠΎ Π·ΠΎΠ½Π΄ΠΈΡΠΎΠ²Π°Π½ΠΈΡ Ρ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΡΠ΅Ρ
ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΠΉ Ρ Π³Π°Π»ΡΠ²Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΠΈ ΠΈΠ½Π΄ΡΠΊΡΠΈΠ²Π½ΡΠΌΠΈ ΠΈΡΡΠΎΡΠ½ΠΈΠΊΠ°ΠΌΠΈ. ΠΠ»Ρ Π°Π½Π°Π»ΠΈΠ·Π° ΠΌΠ½ΠΎΠ³ΠΎΠ»Π΅ΡΠ½ΠΈΡ
ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΉ, ΠΊΠΎΡΠΎΡΡΠ΅ Π±ΡΠ»ΠΈ Π½Π°ΡΠ°ΡΡ Π² 2007 Π³. ΠΈ ΠΏΡΠΎΠ΄ΠΎΠ»ΠΆΠ°ΡΡΡΡ ΠΏΠΎ Π½Π°ΡΡΠΎΡΡΠ΅Π΅ Π²ΡΠ΅ΠΌΡ, ΠΏΡΠΈΠ²Π»Π΅ΡΠ΅Π½Ρ Π΄Π²Π° ΡΠ»Π΅ΠΊΡΡΠΎΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠ° β ΡΠ΄Π΅Π»ΡΠ½ΠΎΠ΅ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠ΅ ΡΠΎΠΏΡΠΎΡΠΈΠ²Π»Π΅Π½ΠΈΠ΅ ΠΈ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°Π½ΠΈΠ·ΠΎΡΡΠΎΠΏΠΈΠΈ. Π¦Π΅Π»ΡΡ ΡΠ°Π±ΠΎΡΡ ΡΠ²Π»ΡΠ΅ΡΡΡ ΠΎΡΠ΅Π½ΠΊΠ° Π²Π°ΡΠΈΠ°ΡΠΈΠΉ ΡΡΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² Π² Π·ΠΎΠ½Π΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΡΠ°Π·Π»ΠΎΠΌΠ°, ΡΠΎΠΏΠΎΡΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ ΠΈΡ
ΠΈΠ½ΡΠ΅Π½ΡΠΈΠ²Π½ΠΎΡΡΠΈ Ρ ΠΏΠΎΠΊΠ°Π·Π°ΡΠ΅Π»ΡΠΌΠΈ ΡΠ΅ΠΉΡΠΌΠΈΡΠ½ΠΎΡΡΠΈ, ΡΡΠΎ Π΄Π°Π΅Ρ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΠΈΡΡ ΡΡΠ΅ΠΏΠ΅Π½Ρ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ Π²ΡΡΠ²Π»Π΅Π½Π½ΡΡ
ΡΠ°Π·Π»ΠΎΠΌΠ½ΡΡ
Π½Π°ΡΡΡΠ΅Π½ΠΈΠΉ. Π ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΈΠ·ΠΌΠ΅ΡΠ΅Π½ΠΈΠΉ ΠΈ ΠΈΠ½ΡΠ΅ΡΠΏΡΠ΅ΡΠ°ΡΠΈΠΈ Π΄Π°Π½Π½ΡΡ
ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ° ΠΌΠΎΠ΄ΠΈΡΠΈΠΊΠ°ΡΠΈΠΉ Π½Π΅ΡΡΠ°ΡΠΈΠΎΠ½Π°ΡΠ½ΠΎΠ³ΠΎ Π·ΠΎΠ½Π΄ΠΈΡΠΎΠ²Π°Π½ΠΈΡ, Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΠΊΠΎΡΠΎΡΠΎΠΉ ΠΌΠΎΠΆΠ½ΠΎ Π½Π°ΠΈΠ±ΠΎΠ»Π΅Π΅ ΡΠΎΡΠ½ΠΎ ΠΎΡΠ΅Π½ΠΈΡΡ Π·Π½Π°ΡΠ΅Π½ΠΈΡ ΡΠ»Π΅ΠΊΡΡΠΎΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ². ΠΡΠ²ΠΎΠ΄ Π·Π°ΠΊΠ»ΡΡΠ°Π΅ΡΡΡ Π² ΡΠΎΠΌ, ΡΡΠΎ ΠΊΠΎΡΡΡΠΈΡΠΈΠ΅Π½Ρ ΡΠ»Π΅ΠΊΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π°Π½ΠΈΠ·ΠΎΡΡΠΎΠΏΠΈΠΈ ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ Π΄Π»Ρ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΡΠ΅ΠΊΡΡΠ΅ΠΉ ΡΠ΅ΠΉΡΠΌΠΈΡΠ½ΠΎΡΡΠΈ, Π° Π΅Π³ΠΎ ΠΌΠ°ΠΊΡΠΈΠΌΠ°Π»ΡΠ½ΡΠ΅ Π²Π°ΡΠΈΠ°ΡΠΈΠΈ, ΠΊΠΎΡΠΎΡΡΠ΅ Π½Π°Π±Π»ΡΠ΄Π°ΡΡΡΡ Π² Π·ΠΎΠ½Π΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΡΠ°Π·Π»ΠΎΠΌΠ°, Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΠ·ΡΡΡ Π΅Π³ΠΎ Π°ΠΊΡΠΈΠ²Π½ΠΎΡΡΡ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ Π΄Π²ΡΡ
ΡΠ»Π΅ΠΊΡΡΠΎΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΎΠ² ΡΠ²Π΅Π»ΠΈΡΠΈΠ²Π°Π΅Ρ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠ²Π½ΠΎΡΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ
VARIATIONS IN ELECTROPHYSICAL PARAMETERS ESTIMATED FROM ELECTROMAGNETIC MONITORING DATA AS AN INDICATOR OF FAULT ACTIVITY
In the regions of high seismic activity, investigations of fault zones are of paramount importance as such zones can generate seismicity. A top task in the regional studies is determining the rates of activity from the data obtained by geoelectrical methods, especially considering the data on the faults covered by sediments. From a practical standpoint, the results of these studies are important for seismic zoning and forecasting of natural and anthropogenic geodynamic phenomena that may potentially occur in the populated areas and zones allocated for construction of industrial and civil objects, pipelines, roads, bridges, etc. Seismic activity in Gorny Altai is regularly monitored after the destructive 2003 Chuya earthquake (M=7.3) by the non-stationary electromagnetic sounding with galvanic and inductive sources of three modifications. From the long-term measurements that started in 2007 and continue in the present, electrical resistivity and electrical anisotropy are determined. Our study aimed to estimate the variations of these electrophysical parameters in the zone influenced by the fault, consider the intensity of the variations in comparison with seismicity indicators, and attempt at determining the degree of activity of the faults. Based on the results of our research, we propose a technique for measuring and interpreting the data sets obtained by a complex of non-stationary sounding modifications. The technique ensures a more precise evaluation of the electrophysical parameters. It is concluded that the electric anisotropy coefficient can be effectively used to characterize the current seismicity, and its maximum variations, being observed in the zone influenced by the fault, are characteristic of the fault activity. The use of two electrophysical parameters enhances the informativeness of the study