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1.
Adushkin V. V. Varypaev A. V. Kushnir A. F. Sanina I. A. 《Doklady Earth Sciences》2020,493(1):548-551
Doklady Earth Sciences - The results of recording and determining the locations of seismic events triggered by industrial explosions conducted by OJSC Kombinat KMAruda at the Korobkovskoe iron ore... 相似文献
2.
V. V. Adushkin I. A. Sanina I. P. Gabsatarova G. N. Ivanchenko E. M. Gorbunova 《Doklady Earth Sciences》2016,469(2):828-831
The Mikhnevo Seismic Group of the Institute of Geosphere Dynamics, Russian Academy of Sciences (IGD RAS), and the Malin mini-group in the region of the Dnieper–Donets aulacogen, within which prospecting and mountain-explosion works were carried out from 2007 to 2015 on industrial scales, recorded a series of seismic events. Special attention has been focused on analysis of the nature of three earthquakes in 2015. Application of the spectral discrimination method log(Pg/Lg) and cross-correlation tools allowed us to identify the seismic events in 2015 as a special technogenic-tectonic type. 相似文献
3.
Doklady Earth Sciences - New results are presented on the features of the deep velocity structure of two of the three main tectonic blocks that make up the Kola region—Murmansk and... 相似文献
4.
Goev A. G. Sanina I. A. Oreshin S. I. Reznichenko R. A. Tarasov S. A. Fedorov A. V. 《Izvestiya Physics of the Solid Earth》2021,57(5):605-613
Izvestiya, Physics of the Solid Earth - Abstract—The velocity structure of the lithosphere is studied beneath the Khibiny and Lovozero massifs in the northeastern part of the Baltic shield.... 相似文献
5.
I. P. Bashilov S. G. Volosov S. A. Korolyov G. L. Kosarev O. Yu. Riznichenko I. A. Sanina 《Seismic Instruments》2014,50(3):177-191
The SSD-3 three-channel seismic recorder and the ADSS-3 three-component broadband standalone digital seismic station based on the SSD-3 together with SM-3E seismic sensors were developed. The main advantage of this equipment in comparison with foreign and domestic analogs is simplicity and convenience while maintaining high technical characteristics. The structure and operation of the seismic sensor and seismic recorder are considered, and their main technical characteristics are given. Laboratory, bench, and comparative tests of the seismic recorder and station demonstrated their working capacity and compliance with the development goal. Based on the test results, the ADSS-3 seismic station was commissioned as a three-component broadband observation point of the Mikhnevo small-aperture seismic array. The data obtained using the ADSS-3 made is possible to study the structure of the crust and upper mantle of this region using the receiver function method. 相似文献
6.
V. V. Adushkin I. A. Sanina I. S. Vladimirova Yu. V. Gabsatarov E. M. Gorbunova G. N. Ivanchenko 《Izvestiya Physics of the Solid Earth》2014,50(2):169-176
The combined approach is used for studying recent tectonic activity in the central part of the East European Craton (EEC).This approach incorporates the methods of automated lineament analysis and satellite geodesy with the conventional geological mapping analysis. The space tectonic map (space image based) is reconstructed, and morphostructures that are active at the recent and present tectonic stage are delineated by processing the Landsat image mosaic. The direction and rate of horizontal displacement of crustal blocks, which is caused by deep geodynamical processes, are determined using the GPS data. The study is preliminary since only few GPS stations within the EEC have sufficiently long time series of observations. 相似文献
7.
V. V. Adushkin D. I. Bobrov I. O. Kitov M. V. Rozhkov I. A. Sanina 《Doklady Earth Sciences》2017,473(1):303-307
A weak seismic event with body wave magnitude 2.1 was detected near the epicenter of an underground explosion conducted by the Democratic People’s Republic of Korea (DPRK) on September 9, 2016. The event occurred approximately two days after the test. Using the method of waveform cross-correlation, two array stations of the International Monitoring System (IMS), USRK and KSRS, recorded the arrival of P n waves. At the same time, this event was not recorded during the standard automatic processing at the International Data Center. The location and other characteristics of this weak event indicate that it is likely to have been an aftershock of the preceding explosion. Based on the successful automatic detection and construction of the event, we conducted an extended investigation, which consisted in searching for secondary seismic phases at the nearest stations that do not belong to the International Monitoring System. The final solution, which is based on waveform cross-correlation, includes stations MDJ (China) and SEHB (Republic of Korea), the aftershock epicenter is located at ~2 km northwest of the epicenter of the DPRK test. 相似文献
8.
V. V. Adushkin N. G. Gamburtseva M. A. Nesterkina I. A. Sanina D. D. Sultanov O. A. Usol’tseva 《Izvestiya Physics of the Solid Earth》2010,46(3):244-256
The results of long-term sounding of the lithosphere by seismic waves from the deep-focus Hindu Kush earthquakes are presented.
The travel time series of the first longitudinal wave on a fixed base are constructed for six seismic observation stations
(SS) located on the Russian Platform (the Obninsk SS), on the Siberian Platform (the Eltsovka SS), on the Cis-Ural Trough
(the Arti SS), in the Central-Ural Megazone (the Sverdlovsk SS), in the Transbaikalia (the Bodaibo SS), and in the Northern
Tien Shan (the Przhevalsk SS). The time series duration in years for these stations ranged from 1964–1970 to 2007. The travel
time series of seismic waves for the stations indicated are characterized by multi-slope negative linear trends caused by
changes in the stress-strain state of rocks. From the comparison of the trend slopes at different stations it follows that
the changes in the stress conditions within the lithosphere are relatively weak in the aseismic regions of the Russian and
Siberian Platforms and in the Ural Megazone, whereas in the seismically active regions of Tien Shan, Transbaikalia and the
Cis-Ural Trough they are more pronounced. The correlation has been observed between the time series trends of the average
annual travel times of seismic waves and the time series of the Earth’s rotation speed. The strongest correlation between
the series can be seen for the stations, located on the platforms with weak manifestations of both seismicity and active geodynamic
processes. Within the long-term periods of deceleration and acceleration of the Earth’s rotation, travel times of seismic
waves are decreased and increased, respectively. 相似文献
9.
I. O. Kitov S. G. Volosov S. B. Kishkina N. L. Konstantinovskaya K. S. Nepeina M. A. Nesterkina I. A. Sanina 《Seismic Instruments》2016,52(1):19-31
A small-aperture seismic array consisting of seven three-component seismometers carried out continuous measurements of regional seismicity in a selected area of the Nizhni Novgorod nuclear power plant during four months of 2013. Automatic signal detection using beamforming was applied separately for each motion component. Two horizontal components were transformed into radial and transverse components for the given values of the velocity and azimuth of the plane wave front. We have investigated the dependence of the coherence of microseismic noise on frequency, azimuth, and slowness, as well as determining the level of cross-correlation between signals on separate channels in order to estimate expected improvement in the signal-to-noise ratio, which is crucial for signal detection. Most signals detected by the seismic array from regional sources are associated with quarry blasts. Using repetitive explosions at seven quarries, we have quantitatively estimated and compared the increase in detection efficiency of regional seismic phases using a three-component small aperture seismic array and a subarray of vertical sensors. Horizontal sensors showed a higher efficiency in the detection of transverse waves, while the subarray of vertical sensors missed S-waves from certain events. For one of the nearby quarries, the vertical subarray missed up to 25% of events (5 of 20). The results of the investigation point to the need for the use of three-component seismic arrays for the study of regional seismicity. 相似文献
10.