Browsing ELibrary by Title

Browsing ELibrary by Title

Sort by: Order: Results:

  • SEISMIC AND TECTONIC ACTIVITY OF FAULTS ON THE SOUTH SLOPE OF THE NW CAUCASUS 
    Rogozhin E.A.; Yunga S.L.; Marakhanov A.V.; Ushanova E.A.; Dvoretskaya N.A.; Ovsyuchenko A.N. (2002)
    Paleoseismologic studies of recent years on the southern slope of the Northwest Caucasus show major earthquakes of up to M 7.0 to have occurred in the past in the number of geologically active fault zones. Recurrence ...
  • SEISMIC ANISOTROPY AND GLOBAL GEODYNAMICS 
    Montagner J.-P.; Guillot L. (2002)
  • SEISMIC ANISOTROPY AND MANTLE CREEP IN YOUNG OROGENS 
    Meissner R.; Mooney W.D.; Artemieva I. (2002)
    Seismic anisotropy provides evidence for the physical state and tectonic evolution of the lithosphere. We discuss the origin of anisotropy at various depths, and relate it to tectonic stress, geotherms and theology. The ...
  • SEISMIC ANISOTROPY BENEATH THE CONTINENTS: PROBING THE DEPTHS OF GEOLOGY 
    Silver P.G. (1996)
    Seismic anisotropy beneath continents is analyzed from shear-wave splitting recorded at more than 300 continental seismic stations. Anisotropy is found to be a ubiquitous property that is due to mantle deformation from ...
  • SEISMIC ATTENUATION DUE TO WAVE-INDUCED FLOW 
    Pride S.R.; Berryman J.G.; Harris J.M. (2004)
    Analytical expressions for three P-wave attenuation mechanisms in sedimentary rocks are given a unified theoretical framework. Two of the models concern wave-induced flow due to heterogeneity in the elastic moduli at ...
  • SEISMIC COHERENT STATES AND RAY GEOMETRICAL SPREADING 
    Thomson C.J. (2001)
    The coherent-state transform (CST) is essentially a Gaussian-windowed Fourier transform and it yields a combined slowness-position (p, x) domain representation of seismic wavefields. Several forms of the inverse CST exist ...
  • SEISMIC DATA ON RESIDUAL DISPLACEMENTS IN EXPLOSIONS AND EARTHQUAKES 
    Grayzer V.M. (1989)
    Traditional instrumental seismologic observations provide information on the accelerations, velocities and displacements of the ground at various distances from the centers of earthquakes and explosions. Seismic instruments ...
  • SEISMIC DATA ON THE STRUCTURE OF THE SEDIMENTARY COVER IN THE CRETAN TROUGH 
    Yel'nikov I.N.; Solov'yev S.L. (1989)
    The southern, deep-water part of the Aegean Sea includes the Cretan Trough, which is bounded in the north by the South Aegean volcanic belt (with the well known Santorin volcano) and in the south by the Hellenic Island Arc ...
  • SEISMIC ENERGY RELEASES FROM VOLCANOES 
    Yokoyama I. (1988)
    Seismic energy release during the precursory, eruptive and declining stages of volcanic activities provides various information about the mechanisms of volcanic eruptions and the temporary developments of their activities. ...
  • SEISMIC EVENTS ASSOCIATED WITH THE 1996 VOLCANIC ERUPTIONS IN THE KARYMSKY VOLCANIC CENTER 
    Gordeev E.I.; Droznin D.V.; Kasahara M.; Levina V.I.; Leonov V.L.; Miyamachi H.; Okayama M.; Saltykov V.A.; Sinitsyn V.I.; Chebrov V.N. (1998)
    A study of the seismicity that preceded and accompanied eruptions in the Karymsky volcanic center revealed a relationship between the seismic processes caused by local tectonic movements and volcanic eruptions at Karymsky ...
  • SEISMIC EVIDENCE FOR A MANTLE PLUME OCEANWARDS OF THE KAMCHATKA-ALEUTIAN TRENCH JUNCTION 
    Gorbatov A.; Fukao Y.; Widiyantoro S.; Gordeev E. (2001)
    A non-linear iterative P-wave traveltime tomography has revealed a mantle plume originating at a depth of nearly 1000km, rising across the 600 km discontinuity, and deflecting subhorizontally in the uppermost mantle ...
  • SEISMIC EVIDENCE FOR FLUID-DRIVEN DEFORMATION 
    Crampin S.; Peacock S. (2003)
    The behaviour of seismic shear waves shows that fluid-rock interactions control both low-level deformation of the intact rock mass before fracturing takes place, and the fracturing or faulting process itself in deep in ...
  • SEISMIC EVIDENCE FOR VERY DEEP ROOTS OF CONTINENTS 
    Gossler J.; Kind R. (1996)
    A major problem in geodynamics with seismic data is discussed: How deeply do the continents penetrate into the mantle? Differential travel times of underside reflections from mantle discontinuities that appear as precursors ...
  • SEISMIC EVIDENCE OF SMALL-SCALE LACUSTRINE DRIFTS IN LAKE BAIKAL (RUSSIA) 
    Ceramicola S.; Rebesco M.; de Batist M.; Khlystov O. (2001)
    High resolution, single-channel seismic sparker profiles across the Akademichesky Ridge, an intra-basin structural high in Lake Baikal (Russia), reveal the presence of small sediment mounds and intervening moats in the ...
  • SEISMIC FLOW OF THE LITHOSPHERE BENEATH KAMCHATKA 
    Vostrikov G.A. (1996)
    This study is concerned with spatial variations in strain and stress rates and in viscosity, these being macroscopic effective parameters of seismic flow in the crust and upper mantle (down to 60 km depth) beneath Kamchatka. ...
  • SEISMIC GYROTROPY AND ITS PHYSICAL REASONS 
    Obolentseva I.R.; Chichinina T.I. (1997)
    A new concept, seismic gyrotropy, is presented in the context of both phenomenological and microlevel theory; comparison with the advanced theory of optical gyrotropy is given. Seismic gyrotropy is introduced as manifestation ...
  • SEISMIC HAZARD PRECURSORY EVOLUTION: FRACTAL AND MULTIFRACTAL ASPECTS 
    Kiyashchenko D.; Smirnova N.; Troyan V.; Saenger E.; Vallianatos F. (2004)
    One of the important tools for seismic hazard risk assessment is study of the dynamics of properties of spatio-temporal distribution of the seismicity. We have performed simulation of the crack network development in elastic ...
  • SEISMIC IMAGE QUALITY BENEATH STRONGLY SCATTERING STRUCTURES AND IMPLICATIONS FOR LOWER CRUSTAL IMAGING: NUMERICAL SIMULATIONS 
    Martini F.; Bean Ch.J.; Dolan S.; Marsan D. (2001)
    The aim of this paper is to analyse how the scattered wavefield in a highly heterogeneous structure influences the image quality of structures below it and how the velocity control during processing of data from highly ...
  • SEISMIC IMAGING OF LITHOSPHERIC DISCONTINUITIES AND CONTINENTAL EVOLUTION 
    Bostock M.G. (1999)
    Discontinuities in physical properties within the continental lithosphere reflect a range of processes that have contributed to craton stabilization and evolution. A survey of recent seismological studies concerning ...
  • SEISMIC INVERSION FOR THE PARAMETERS OF TWO ORTHOGONAL FRACTURE SETS IN A VTI BACKGROUND MEDIUM 
    Bakulin A.; Grechka V.; Tsvankin I. (2002)
    Characterization of naturally fractured reservoirs often requires estimating parameters of multiple fracture sets that develop in an anisotropic background. Here, we discuss modeling and inversion of the effective parameters ...