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The traveling of surface waves in a model geophysical medium with a nonsmooth boundary is studied. It is shown that relief significantly distorts the microseismic noise field recorded at the day surface. This result should be taken into consideration when interpreting the data of passive surface-wave geophysical studies of deep crustal inhomogeneities. 相似文献
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Doklady Earth Sciences - A numerical parametric study of the scattering features of Rayleigh waves that appear during the operation of a vibroseismic source on near-surface inhomogeneities (seismic... 相似文献
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D. V. Likhodeev Z. I. Dudarov R. A. Zhostkov D. A. Presnov S. M. Dolov K. B. Danilov 《Journal of Volcanology and Seismology》2017,11(6):413-418
This paper presents results from a study of the deep structure of the Elbrus edifice and adjacent areas using geophysical techniques. We confirmed the existence of a shallow magma chamber, derived a more accurate location of the chamber in the host rocks and its characteristic dimensions, and compared new results with known studies. More accurate estimates have been obtained for the temperature at the top of the magma chamber and new evidence is adduced concerning the deep structure of the fluid magmatic systems in the Elbrus volcanic area. 相似文献
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Doklady Earth Sciences - The evolutionary processes of gas hydrate accumulations associated with deep-sea mud volcanoes are discussed. A mathematical model and the results of numerical modeling of... 相似文献
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Geotectonics - The article presents the results of the first comprehensive geological and geophysical studies of active tectonics in the western part of Wrangel Island, carried out during the... 相似文献
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Ovsyuchenko A. N. Sobisevich A. L. Lyamenkov M. V. Zhostkov R. A. 《Doklady Earth Sciences》2021,499(1):580-584
Doklady Earth Sciences - Comprehensive geological and geophysical studies of the traces of strong earthquakes on Taimyr have been carried out, and seismic sources that were previously unknown have... 相似文献
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Doklady Earth Sciences - A new model that can account for accumulations of gas hydrates associated with submarine mud volcanoes and based on the available data on these gas hydrates is proposed.... 相似文献
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V. I. Gorbenko R. A. Zhostkov D. V. Likhodeev D. A. Presnov A. L. Sobisevich 《Seismic Instruments》2017,53(3):181-191
Field experiments involving molecular-electronic seismometers, along with conventional pendulum geophones, were performed to study the deep structure of the upper crust (in the area of the Kaluga ring structure) by passive seismic methods. The microseismic sounding survey was carried out along a geophysical profile crossing the central part of the structure with simultaneous data acquisition by molecular-electronic and conventional seismometers at each measurement point. Experimental data on the propagation of Rayleigh waves along the curvilinear surface have been collected. The feasibility of using molecular-electronic seismometers for passive seismic studies has been confirmed by the results of comparative analysis of the vertical geophysical cross sections, which reveal upper crustal heterogeneities, and by the results of a series of laboratory tests. 相似文献
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