Yu. L. Rebetsky

Russian Academy of Sciences | RAS · Institute of Physics of the Earth

The field of modern tectonic stresses was reconstructed for the Earth’s crust of the northwestern segment of the Pacific subduction zones. For this purpose, we used the method of cataclastic analysis and data on the magnitude of the stresses released at the source of the Simushir earthquake of 2006, which allowed us to determine both the orientatio...

The set of equations for the problem of thermal-gravitational convection accounts for compressibility of solid bodies, which changes for elementary volumes moving during convection process in fields of the initial temperature and the initial gravitational stress pattern for rheology of an elastic-viscous Maxwell body. It was shown that equations of...

The problem of the generation mechanism of tectonic stresses in intraplate regions is a pressing one not only because of the importance of its solution within basic research but also owing to its wide application aspect. An increased level of horizontal compression compared with the prognostic ones frequently observed in the upper levels of the Ear...

Issue of relations between brittle failure and localized plastic flow, which are realized in the fault zones of the Earth’s crust, is one of the most important problems in geomechanics. New data on values of natural stresses in seismoactive regions allowed us to distinguish the regularities of their distribution, which correspond to the possibility...

Reconstruction of the parameters of stress tensor based on focal mechanisms of earthquakes occurring before the Sumatra‐Andaman earthquake (SAE) showed that deviatory stresses and all-round compression in the western Sunda subduction zone were distributed nonuniformly. Nonuniform state of the stress in this region is caused by the active sectors of...

There were investigated seismic mode and stress state of the Earth’s crust in the South Fergana seismic activity zone. In the central part of the zone, there was identified an area of a long-term seismic quiescence during which no earthquakes with energy class K≥12 (M≥4.5) were recorded. Along the entire length of the seismic quiescence area, there...

The relationship between strong earthquakes and powerful volcanism in subduction zones are discussed. It is shown that abnormally strong earthquakes or a group of strong earthquakes and powerful volcanic events or volcanic activation of large areas can be considered as an interconnected geodynamic pair. At high level of horizontal compression, magm...

—The current stress state of the Earth’s crust on the territory of Uzbekistan is studied using algorithms from the cataclastic analysis of displacements (CAD) with the application of a combined catalog of earthquake source mechanisms. The axis of maximum compression is nearly horizontal and orthogonal to the strike of tectonic structures for the la...

—The crustal stress field of the Baikal Rift System has been reconstructed by tectonophysical inversion of focal mechanisms from the catalog of earthquakes recorded by the regional seismological network. Cataclastic analysis of fault slip data developed at the Shmidt Institute of the Physics of the Earth (Moscow) revealed previously unknown feature...

—The pattern of current crustal stress in central and southeastern Asia has been reconstructed from earthquake focal mechanisms by inversion using Rebetsky’s method of cataclastic analysis. The inversion provides constraints on principal stress directions, as well as on relative magnitudes of maximum shear and effective isotropic pressure. The crus...

An algorithm for calculating stress values proposed here is based on the results of reconstruction performed by L.A. Sim’s structural-geomorphological method for platform areas. This method makes it possible to determine the orientation of the axes of principal stresses for the shear zones from the lineament analysis of satellite images and photogr...

The Himalayan-Tibetan orogen is one of the active orogens on Earth. The processes caused by the collision of two continents have attracted attention of many researchers, and over the past decades, a large amount of geological and geophysical data has accumulated, on which models of the evolution of the region are based. The paper presents a model o...

An approach to evaluate the current seismological situation in the Uzbekistan territory is presented. This approach is based on the regularities of seismic processes in strong-earthquake focal areas and the manifestation peculiarities of strong earthquakes in seismically active zones. At the first stage, within seismically active zones, areas with...

The results of using a technology for zoning hazardous faults developed at the Institute of Physics of the Earth based on natural stress data are presented. The source of these data is catalogs of earthquake focal mechanisms, while inversion of stresses from them is obtained by cataclastic analysis of discontinuous displacements. For the studied re...

A man-induced seismic activation occurring near the Bachat open-cast coal mine in Kuzbass is studied. The Bachat earthquake of June 18, 2013 (ML = 6.1) is the world’s largest man-made earthquake related to the extraction of solid minerals. It created a powerful aftershock process. More than 3000 earthquakes have been recorded. It was found that the...

The current stress of Earth's crust in the territory of Uzbekistan has been studied using a focal earthquake mechanisms catalogue that includes the data provided by many authors. Stress reconstructions are based on the cataclastic analysis of displacements along fractures. For reconstructing the stress state at different depths of the crust in seve...

This paper considers theoretical aspects of a trigger effect of earth tides on earthquake initiation under the LURR approach. The growth of Coulomb stress, which appears resulting from this phenomenon, is shown to occur not for all regimes of stress state acting in the studied region. Its greatest increase corresponds to the regime of the horizonta...

In the article by N.A. Sycheva and L.M. Bogomolov, the authors proposed to combine the interrelated data on the stress drop in the earthquake sources, ∆σ, and reduced seismic energy, ePR, to analyze the dependence of these parameters on earthquake scale along with expansion of the measurement statistics (assessments). The dependence of these parame...

An active fault was identified on the northern slope of the Kyrgyz ridge in the area near Research Scientific RAS in Bishkek. It belongs to a large system of crustal faults of the ridge. In our study, tectonophysical methods were used to analyse the regularities of the tectonic stress field reconstructed from seismological data on earthquake focal...

The results of tectonophysical inversion of the global tectonic stress field are considered from the position of explaining the active forces that cause the lithospheric plate movements. The analysis of regularities of the stress state of the main structural elements of Earth's lithosphere-ocean spreading, transformations , active continental margi...

Результаты тектонофизической инверсии глобального поля тектонических напряжений рассматриваются с позиции объяснения активных сил, обуславливающих движение литосферных плит. Выполнен анализ закономерностей напряженного состояния главных структурных элементов литосферы Земли – океанского спрединга, трансформов, активных континентальных окраин, внутр...

In this study various approaches are used to estimate components of the stress fields and the directions of the principal axes of the stress tensor in a geological object complicated by disjunctive disturbances. Two approaches are used: one is the cataclastic analysis method and the other one is finite element method. The initial data for modeling...

The problem of determining small tangential mass forces in the Earth lithosphere is formulated. It is shown that the current state in understanding the shape of The Earth's physical surface and data on its geoid allow us to determine deviations of the vertical line from the normal to the Earth's surface on the scale of averaging in the first hundre...

На Киргизском хребта выделен безымянный субширотный разлом, который в рамках тектонофизическим методов районирования напряжений определен как опасный. Вблизи пересечения разломом долин рек Аламедин и Аксу идет обильное образование каменных осыпей и вывалов, что может свидетельствовать о медленных движениях его бортов, продолжающихся уже не менее 10...

The current state of crustal stresses in the Caucasus and adjacent territories has been reconstructed. Stress inversion was performed by the cataclastic analysis of earthquake focal mechanisms considered as seismological strain indicators. The data were taken from the unified catalogue of focal mechanisms of the Northern Eurasia, which was consolid...

In many wellbore stability analyses, the ability to forecast both the occurrence and extent of plastic deformation and failure hinges upon a fundamental understanding of deformation mode and failure mechanism in the reservoir rock. This study focuses on analyzing plastic zones, localized deformations, and failures around a borehole drilled overbala...

На основе сборного каталога механизмов очагов землетрясений, составленного по данным различных авторов, методом катакластического анализа разрывных смещений проведено изучение современного напряженного состояния земной коры территории Узбекистана. Реализовано два этапа реконструкции поля напряжений МКА на различных уровнях площадной детальности оср...

Examines the state in the field of earthquake prediction and modern views of geomechanics on the nucleation of foci of strong earthquakes. From the point of view of tectonophysics, the problem of the mechanism of mega-earthquake occurrence is considered. It is shown that data obtained by tectonophysics methods on the natural stress magnitudes in re...

The causes of stress generation in the earth's crust, which have escaped attention in the framework of the prevailing paradigm of lithospheric plate tectonics, are discussed. It is shown that the process of “digging out” of rocks (the combination of upward movements in the crust with denudation-exogenous processes) leads to the formation in the upp...

A review of the achievements of Russian Tectonophysics in studying the state of faults obtained in the last 40–50 years is given. It is shown that during this period of time, algorithms and methods for studying the structural parameters of fault zones have been created, which should be supplemented by technologies developed in mining Sciences (geot...

An overview of the state of the problem of folding is presented. The mechanisms of formation of an unstable state of the layered medium associated not with lateral pressure, but with internal energy sources are considered. It is shown that the inversion of elastic stiffness with depth in the realization of the flow under conditions of small volume...

Сборник посвящен 100-летнему юбилею М.В. Гзовского и представляет статьи ведущих российских ученых, работающих в области тектонофизики, тектоники, структурной и рудной геологии. Объединяющей тематикой сборника служит использование данных о природных напряжениях для решения как фундаментальных проблем геодинамики и физики очага землетрясений, так и...

The achievements of world and russian tectonophysics obtained over the last 40–50 years allow us to conclude that it actually fulfilled the range of tasks that M.V. Gzovsky outlined in the early 70-ies of the last century. The results obtained in the field of tectonophysical modeling and in the field of studying the laws of the natural stress state...

This paper discusses models showing the formation of the Central Mediterranean region and the geodynamic setting of the Apennine Peninsula. Cataclastic analysis is used for a repeated reconstruction of the Central Mediterranean region. The catalogue of earthquake focal mechanisms includes 662 events (3.6≤Mb≤6.5) recorded in the study area from 1977...

This paper presents the results of the stress inversion in the Earth’s crust in the Japanese seismic focal zone after the Tohoku earthquake of March 11, 2011. The stress tensor parameters are determined using the method of cataclastic analysis (MCA) of discontinuous displacements. The reconstruction of the stress state is based on earthquake focal...

Paleostress inversion may be ambiguous when several markedly different local stress states are inferred for a group of out-crops. Attempts of reconstructing regional stress regimes (compressional, extensional, or strike-slip) by selecting local principal stresses of proximal directions turn out to have poor grounds. Each stress permutation (e.g., e...

The sources of the natural stress‐strain state (SSS) of epiplatform orogens are investigated by tectonophysical methods based on seismological data. According to the available data, the horizontal axes of the main deviatoric extension are dominant in depressions, while in the ridges of the orogens, the axes of the main deviatorial compression are d...

5-6 кбар и не менее 50 млн лет выдержан-ности однотипного воздействия. Данные тектонофизических реконструкций напряженного состояния коры современных активных внутриконтинентальных орогенов показывают, что в них не наблюдается единого режима напряженного состояния. Геодинамический тип напряженного состояния коры поднятий в виде хребтов отличается о...

The method of cataclastic analysis of discontinuous dislocations created in the early 1990s (Rebetsky 1996 Rebetsky 1997) initially as well as the methods of O. I. Gushchenko, J. Angelier, J. Gephard, had in his algorithm only the possibility of determining the shape and direction of the principal axes of the stress ellipsoid.

Russian geomechanics made an important contribution to the development of ideas about the deformation properties of rocks in the lithosphere (Nikolaevsky 1979, Nikolaevsky 1996, Nikolaevsky 2006, Nikolaevsky and Sharov 1985) in the second half of the 70’s - the beginning of the 80’s of the last century.

This proceedings book investigates the possibilities for creating new models of the continental lithosphere structure by integrating methods from geothermodynamics and deep geoelectrics. It particularly focuses on the use of powerful controlled sources of electromagnetic field to study the nature of deep geophysical boundaries. It also presents res...

A method for determining the focal mechanisms of earthquakes using the S-wave polarization direction for weak close seismic events is developed based on the detailed seismological studies carried out by the seismological expedition of the Institute of Physics of the Earth of the Russian Academy of Sciences in 1999-2001 near the Bushehr nuclear powe...

The problem of forecasting seismic hazards is discussed. The stress state data characterizing various aspects of brittle failure are reviewed in detail. It is shown that the most convenient tool for analyzing such data is the Mohr stress diagram and the Coulomb criterion. Noted is the role of a fluid in not only reducing the normal stresses respons...

This paper proposes a new approach to estimating the long-range influence of crustal volumes that involve anomalous stress behavior. It is shown that the consideration of this problem within elasticity theory underestimates the long-range action, determining a rapid decrease in the influence of the volume involving anomalous stresses on the state o...

Problems associated with the instability of the wellbore annually cost the oil and gas industry billions of dollars around the world. However, the application of geomechanical models can significantly reduce these costs. Geomechanical models can be built based on mechanical constitutive laws (elastic, poroelastic, elastoplastic and etc.) and failur...

Studying regularities of the spatial distribution and temporal variations of tectonic stress is one of the most important issues in a number of disciplines of the Earth sciences. In geodynamics, the problem of understanding of the stress state in the Earth’s crust and in the lithosphere is associated with the need to explain the mechanism of format...

This chapter will present the results of inversion of modern state of stress, obtained by the method of cataclastic analysis of discontinuous displacements (MCA), for three seismically active regions of Asia: the Northern Tien Shan, the Altai-Sayan region and the Kuril-Kamchatka region. The stress data on the earthquake focal mechanisms are taken f...

The classical problem of the stability of oil wells is considered using the linear elastic theory. The analysis of the reasons, why the standard approach of determining the drilling fluid pressure to the underlying layers does not guarantee the stability of the borehole wall. It is shown that the presence of the fractures of various origins in the...

A stress reconstruction was performed based on focal mechanisms around the Longmen Shan region prior to the 2008 Ms 8.0 Wenchuan earthquake using a newly developed algorithm (known as MCA). The method determines the stress tensor, including principal axes orientations, and quantitative stress values, such as the effective confining pressure and max...

В монографии представлены тектонофизические методы реконструкции природных напряжений по данным о геологических индикаторах тектонических дефор- маций. Эти методы развивались в бывшем СССР и в России после работ М.В. Гзовского. Дается обзор большого числа методов, использующих не только данные о полюсах трещин, но также и данные о зеркалах скольжен...

Изучается механизм генерации напряжений в островной дуге активной континентальной окраины. Основой исследований являются результаты тектонофизической реконструкции природных напряжений в зоне землетрясения Тохоку и численное геомеханическое моделирование. В данной области произошло катастрофическое землетрясение Тохоку (2011 г.), что привело к кард...

Предложен новый подход в оценке дальнодействующего влияния участков коры с аномальным ре-жимом напряженного состояния. Показано, что рассмотрение этой проблемы в рамках теории упругости дает заниженные оценки дальнодействия, определяя быстрое снижение уровня влияния области с аномальными напряжениями на напряженное состояние среды по мере удаления...

The paper discusses questions related to the generation of increasing crustal horizontal compressive stresses compared to the idea of the standard gravitational state at the elastic stage or even from the prevalence of horizontal compression over vertical stress equal to the lithostatic pressure. We consider a variant of superfluous horizontal comp...

Information on designing a 3D integrated model of the deflected mode (DM) of rock massif near the Strel’tsovka uranium ore field (SUOF) in the southeastern Transbaikal region is presented in the paper. This information is based on the contemporary stresses estimated by geostructural and tectonophysical techniques and by studying the seismotectonic...

В статье обсуждаются вопросы механизма генерации коровых напряжений повышенного горизонтального сжатия в сравнении с их значениями, следующими из представлений о стандартном гравитационном состоянии в упругой стадии или даже превышении горизонтального сжатия над вертикальным, равным литостатическому давлению. Рассматривается вариант формирования из...

a Институт геологии рудных месторождений, петрографии, минералогии и геохимии РАН 119017, Москва, Ж-17, Старомонетный пер., 35 b Институт физики Земли им. О.Ю. Шмидта РАН, 123242, Москва, Б. Грузинская ул., 10, стр. 1 c Институт земной коры Сибирского отделения РАН, 664033, Иркутск, ул. Лермонтова, 128 d Институт горного дела Дальневосточного отдел...

The Southern Iran territory, including the Zagros region and the margins of the Arabian and Eurasian plates, is a seismically active area with large industrial facilities of Iran. In this respect, studying modern geodynamics of this area is a top research task. This article presents a part of the studies conducted by the IPE RAS Seismological Exped...

Представлены результаты анализа поля микросейсм гидроразрыва пласта, выполненного для газового месторождения «Barnet» в северо-восточной части штата Техас. Выполнена инверсия цифровых записей микросейсм и получены данные не только о координатах, инициирующих микроземлетрясения, но и об их фокальных механизмах. Эти данные являлись базовыми для выпол...

The author continues to investigate additional planetary-level stresses that occur in the crust due to distributed tangential mass forces. Such forces may be related to the daily rotation of the Earth and movements of the relatively solid core relative to the geocenter. In [Rebetskii, 2016], he discusses how the tangential mass forces in the contin...

В рамках новой постановки рассмотрена проблема оценки дальнодействующего влияния участ-ков земной коры с аномальным режимом напряженного состояния. Новизна задачи основана на учете того факта, что в земной коре на разных ее горизонтах имеются обширные области закри-тического состояния. Рассмотрена двумерная задача плоского напряженного состояния д...

В сборнике публикуются материалы, представленных на Четвертую тектонофизическую конференцию в ИФЗ РАН. В докладах рассматривается широкий круг научных проблем в области геодинамики и структурной геологии, горного дела и поиска месторождений, геофизики недр, сейсмологии и физики очага землетрясений, в решении которых используются тектонофизические м...

В сборнике публикуются материалы, представленных на Четвертую тектонофизическую конференцию в ИФЗ РАН. В докладах рассматривается широкий круг научных проблем в области геодинамики и структурной геологии, горного дела и поиска месторождений, геофизики недр, сейсмологии и физики очага землетрясений, в решении которых используются тектонофизические м...

В сборнике публикуются материалы, представленных на Четвертую тектонофизическую конференцию в ИФЗ РАН. В докладах рассматривается широкий круг научных проблем в области геодинамики и структурной геологии, горного дела и поиска месторождений, геофизики недр, сейсмологии и физики очага землетрясений, в решении которых используются тектонофизические м...

В сборнике публикуются материалы, представленных на Четвертую тектонофизическую конференцию в ИФЗ РАН. В докладах рассматривается широкий круг научных проблем в области геодинамики и структурной геологии, горного дела и поиска месторождений, геофизики недр, сейсмологии и физики очага землетрясений, в решении которых используются тектонофизические м...

В сборнике публикуются материалы, представленных на Четвертую тектонофизическую конференцию в ИФЗ РАН. В докладах рассматривается широкий круг научных проблем в области геодинамики и структурной геологии, горного дела и поиска месторождений, геофизики недр, сейсмологии и физики очага землетрясений, в решении которых используются тектонофизические м...

Величины ротационных напря-жений, о которых говорилось в работе [Vikulin, 2015], столь малы, что о их учете не должно идти речи. А.В. Викулину необходимо определиться с генезисом деформирующих сил и либо согласиться с предложенным вариантом (гироскопические силы), либо указать, что за силы он имеет в виду. Следует также заметить, что замена внутрен...

This study continues the work by Mikhail Gzovsky on geological (tectonophysical) criteria for seismic risk. It is suggested to perform seismic-risk zoning according to parameters of normal and shear stresses on fault planes converted from results of tectonophysical stress reconstructions. The approach requires the knowledge of both dip and strike o...

03.07.2015 г. Поступило 14.03.2016 г. Рассмотрена проблема формирования в коре дополнительных планетарных напряжений от дей-ствия тангенциальных инерциальных массовых сил, вызванных суточным вращением Земли. Уста-новлено, что в коре формируется три уровня напряженного состояния разного геодинамического типа: горизонтальное растяжение, сдвиг и сжати...

This study continues the work by Mikhail Gzovsky on geological (tectonophysical) criteria for seismic risk. It is suggested to perform seismic-risk zoning according to parameters of normal and shear stresses on fault planes converted from results of tectonophysical stress reconstructions. The approach requires the knowledge of both dip and strike o...

Ответ на работу А.В. Викулина «Проблема ротационных движений в геологии»)