ALBERT — All Library Books, journals and Electronic Records Telegrafenberg

1

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The long-term growth of volcanic edifices: numerical modelling of the role of dyke intrusion and lava-flow emplacement (2001)

C. Annen ; J.-F. Lenat ; A. Provost

In: Journal of Volcanology and Geothermal Research, Luxembourg, EGS-Gauthier-Villars, vol. 105, no. 4, pp. 263-289, pp. L23303

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Publikationsdatum: 2001

Schlagwort(e): Volcanology ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Modelling ; JVGR

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2

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The effect of shallow San Francisco Bay sediments on waveforms recorded during the MW 4.6 Bolinas, California, Earthquake (2003)

Laurie G. Baise ; Douglas S. Dreger ; Steven D. Glaser

In: Bull. Seism. Soc. Am., Washington D.C., Bundesanstalt für Geowissenschaften und Rohstoffe, vol. 93, no. 1, pp. 465-479, pp. 2122

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Publikationsdatum: 2003

Beschreibung: To investigate the effect of the shallow, low-velocity sediments on the seismic wave field in the northern San Francisco Bay, we modeled tangential component displacement seismograms recorded during the 18 August 1999 MW 4.6 Bolinas, California, earthquake. The modeling indicates that the velocity structure of Pleistocene horizons in the San Francisco Bay is important for simulations of weak ground motions for Bay Area earthquakes. Models including the Pleistocene sediments generate the 1-sec-period surface waves observed at several stations. Modeling of Treasure and Yerba Buena Island records requires structures approximately an order of magnitude higher in spatial resolution than the current 3D velocity models for the region. This pair of sites, located only 2 km apart in the bay, records a sixfold difference in peak ground acceleration during the Bolinas earthquake. Three transects are forward modeled using 1D frequency-wavenumber integration and 2D finite-difference methods. Generally the ground motions are characterized by a direct shear wave (S0), a midcrustal reflection (S1), a near-receiver multiple (S2), and surface waves. The direct S0 arrival at all six stations requires a faster model than GIL7, the model routinely used to estimate earthquake source parameters using the Berkeley Digital Seismic Network. In addition, the timing of S1 indicates the possibility of a dipping midcrustal interface. S2 can be matched with a single strong impedance contrast at 3 km depth. A thin (200-m) surface layer of weathered rock and sediments simulates the surface waves that follow S2 at the Richmond Field Station site. However, the surface waves at Treasure Island and the Berkeley sites are longer in duration and higher amplitude than at Richmond and require 2D structure. A simple shallow uniform basin model for the San Francisco Bay consisting of stiff sediments (shear-wave velocity, Vs = 400 m/sec; thickness ~100 m) over weathered rock (Vs = 1.5 km/sec) of the Franciscan assemblage produces surface waves in the 0.02-2 Hz passband at Treasure Island and the Berkeley sites.

Schlagwort(e): Seismology ; Earthquake ; Site amplification ; Wave propagation ; Wave form analysis ; USA ; Two-dimensional ; Finite difference method ; Modelling ; Velocity depth profile ; Shear waves ; Surface waves ; Seismic networks ; Reflectivity ; noksp ; BSSA

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3

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The mechanics of unrest at Long Valley Caldera, California: 1. Modeling the geometry of the source using Global Positioning System, leveling and two-color EDM data (2003)

M. Battaglia ; P. Segall ; J. Murray ; [weitere]

In: Journal of Volcanology and Geothermal Research, Ottawa, Bundesanstalt für Geowissenschaften und Rohstoffe, vol. 127, no. 3-4, pp. 195-217, pp. L14310

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Publikationsdatum: 2003

Schlagwort(e): Volcanology ; Modelling ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; USA ; JVGR

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Classification of lithology from seismic tomography: A case study from the Messum igneous complex, Namibia (2003)

K. Bauer ; A. Schulze ; T. Ryberg ; [weitere]

In: J. Geophys. Res., Ottawa, Bundesanstalt für Geowissenschaften und Rohstoffe, vol. 108, no. B3, pp. ESE 9-1 to ESE 9-15, pp. 2152

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Publikationsdatum: 2003

Schlagwort(e): Seismics (controlled source seismology) ; Tomography ; Deep seismic sounding (espec. cont. crust) ; Physical properties of rocks ; JGR

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5

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Evaluation and application of controlling parameters for seismic events in hard-rock mines (2002)

D. A. Beck ; B. H. G. Brady

In: Int. J. Rock Mech. Min. Sci., Luxembourg, Conseil de l'Europe, vol. 39, no. 5, pp. 633-642, pp. 1892

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Publikationsdatum: 2002

Schlagwort(e): Modelling ; Three dimensional ; Boundary Element Method ; Seismicity ; Magnitude ; Stress ; Strain ; Energy (of earthquakes) ; Rock mechanics ; Induced seismicity ; Rock bursts (see also ERDSTOSS and GEBIRGSSCHLAG) ; Mining geophysics ; Engineering geophys. ; IJRM

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6

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Secondary earthquake fractures generated by a strike-slip fault in the South Iceland Seismic Zone (2000)

M. E. Belardinelli ; M. Bonafede ; Á. Guðmundsson

In: J. Geophys. Res., Beijing, Pergamon, vol. 105, no. B6, pp. 13,613-13,629, pp. B02211

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Publikationsdatum: 2000

Schlagwort(e): Modelling ; cracks and fractures (.NE. fracturing) ; two ; layer ; Structural geology ; Stress ; Coulomb ; Dislocation ; 7200 ; Seismology ; 7230 ; Seismicity ; and ; seismotectonics ; 8010 ; Structural ; geology ; (8165) ; Fractures ; and ; faults ; 8015 ; Local ; crustal ; structure ; Gudmundsson ; JGR

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7

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Modellseismik (1972)

J. Behrens ; L. Waniek

In: J. Geophys., Charleston, South Carolina, Dr. W. Junk, vol. 38, no. 3-4, pp. 1-44, pp. B02211

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Publikationsdatum: 1972

Schlagwort(e): Seismics (controlled source seismology) ; SEModelling ; Review article

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8

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A two-phase model for compaction and damage, 3, Applications to shear (2001)

D. Bercovici ; Y. Ricard ; G. Schubert

In: J. Geophys. Res., San Francisco, Pergamon, vol. 106, no. B5, pp. 8925-8940, pp. 1246

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Publikationsdatum: 2001

Schlagwort(e): Fluids ; Fault zone ; shear ; self-separation ; Non-linear effects ; Modelling ; Plate tectonics ; JGR

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9

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Mt Etna volcano: modelling of ground deformation patterns of recent eruptions and considerations on the associated precursors (2001)

A. Bonaccorso

In: Journal of Volcanology and Geothermal Research, Taipei, Elsevier, vol. 109, no. 1-3, pp. 99-108, pp. 2091, (ISBN: 0-12-018847-3)

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Publikationsdatum: 2001

Schlagwort(e): Volcanology ; Crustal deformation (cf. Earthquake precursor: deformation or strain) ; Modelling ; Earthquake precursor: prediction research ; Geodesy ; JVGR

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10

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Simulation of ground motion using the stochastic method (2003)

David M. Boore

In: Pure and Applied Geophysics, Luxembourg, Conseil de l'Europe, vol. 160, no. 3-4, pp. 635-676, pp. L15S17, (ISBN: 0-12-018847-3)

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Publikationsdatum: 2003

Schlagwort(e): Seismology ; Strong motions ; Modelling ; Statistical investigations ; Site amplification ; PAG

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