MR004
Anelasticity and Rocks: Across Scales and Deformation Regimes
Session ID#: 76179
Session Description:
The session focuses on the study of anelastic properties of geomaterials and subsurface domains, including both the brittle and ductile regimes. We welcome laboratory experiments, numerical modeling, and field studies, with an emphasis on dispersion and attenuation of seismic waves due to viscoelastic deformation, poroelasticity (e.g., Biot theory), ductile flow, and fracture propagation. The session should stimulate discussion among communities studying the anelasticity of rocks at various temperature, pressure, strain and strain-rate regimes. The goal of the session is to allow such communities to benefit from one another’s contributions and to expand our capability of upscaling observations from the laboratory and numerical simulations and to improve the exploration and imaging of the subsurface.
Index Terms:
3909 Elasticity and anelasticity [MINERAL PHYSICS]
5102 Acoustic properties [PHYSICAL PROPERTIES OF ROCKS]
5120 Plasticity, diffusion, and creep [PHYSICAL PROPERTIES OF ROCKS]
5144 Wave attenuation [PHYSICAL PROPERTIES OF ROCKS]
Primary Convener: Nicola Tisato, Jackson School of Geosciences: The University of Texas at Austin, Austin, TX, United States
Conveners: Christine Mccarthy1, Elena Spagnuolo2 and Christopher Harbord2, (1)Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States(2)National Institute of Geophysics and Volcanology, Rome, Italy
Primary Liaison: Nicola Tisato, Jackson School of Geosciences: The University of Texas at Austin, Austin, TX, United States
Modulation of seismic attenuation at Parkfield, before and after the 2004 M6 earthquake, and one example from the Geysers geothermal field (Invited) (488548)
Luca Malagnini, Organization Not Listed, Washington, DC, United States, Giovanni Sebastiani, Istituto per le Applicazioni del Calcolo “Mauro Picone”, Consiglio Nazionale delle Ricerche, Rome, Italy, Rome, Italy, Douglas Scott Dreger, University of California Berkeley, Berkeley, CA, United States, Roland Burgmann, Univ California Berkeley, Seismological Laboratory, Berkeley, CA, United States, Irene Munafo, Istituto Nazionale d Geofisica e Vulcanologia, Roma, Italy and Lawrence J Hutchings, LBNL-Earth Sciences, Berkeley, CA, United States
Rock physics and mineralogical characterization of seismic attenuation in volcanic rocks at laboratory sample scale (495985)
Maria DEL Pilar DI Martino1,2, Stéphanie Vialle3, Andrew Putnis1, David Healy2 and Luca De Siena4, (1)Curtin University, School of Earth and Planetary Sciences, Perth, Australia, (2)University of Aberdeen, School of Geosciences, Aberdeen, United Kingdom, (3)Curtin University, WASM: Minerals, Energy and Chemical Engineering, Perth, Australia, (4)Johannes Gutenberg University of Mainz, Institute of Geociences, Mainz, Germany
Low-frequency seismic properties of olivine-orthopyroxene mixtures (496001)
Tongzhang Qu1, Ian Jackson1 and Ulrich Faul2, (1)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, (2)Massachusetts Institute of Technology, Earth Atmospheric and Planetary Sciences, Cambridge, MA, United States
Sliding crack model for non-linearity and hysteresis in the triaxial stress-strain curve of rock (511374)
Emmanuel David1, Nicolas Brantut1, Lars N Hansen2 and Thomas M Mitchell3, (1)University College London, London, United Kingdom, (2)University of Oxford, Department of Earth Sciences, Oxford, United Kingdom, (3)University College London, Department of Earth Sciences, London, United Kingdom
The broadband bulk modulus of a glycerine saturated high-porosity limestone submitted to inelastic compaction (534595)
Samuel Chapman, Laboratoire de Geologie de l’Ecole Normale Superieure, Starnberg, Germany, Jan V. M. Borgomano, Ecole Normale Supérieure Paris, Laboratoire de Géologie, Paris, France and Jérôme Fortin, Ecole Normale Supérieure Paris, Paris, France
Structure of oceanic lithosphere and asthenosphere from forward modeling of absolute velocities (564975)
Gordana Garapic, SUNY College at New Paltz, Department of Geology, New Paltz, NY, United States, Sarah Nolan, SUNY College at New Paltz, Physics, New Paltz, United States, Ulrich Faul, Massachusetts Institute of Technology, Earth Atmospheric and Planetary Sciences, Cambridge, MA, United States and Catherine Rychert, University of Southampton, Ocean and Earth Science, Southampton, United Kingdom
Transient creep of dunites and implication for postseismic deformation (571145)
Sagar Shrishailappa Masuti, Earth Observatory of Singapore, Singapore, Singapore, Prof. Sylvain Barbot, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States and Jun Muto, Tohoku University, Sendai, Japan
Shear Attenuation Beneath the Central Pacific and Implications for Anelasticity and Hydration in the Oceanic Upper Mantle (Invited) (604688)
Colleen A Dalton, Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States, Zhitu Ma, Brown University, Department of Earth, Environmental, and Planetary Sciences, Providence, United States, James B Gaherty, Columbia University in the City of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States, Joshua B Russell, LDEO - Columbia University, Palisades, NY, United States, Greg Hirth, Brown Univeristy, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States and Donald W Forsyth, Brown Univ, Providence, RI, United States
A new apparatus to study visco-elastic properties in large displacement experimental faults (613956)
Nicola Tisato1, Christopher Harbord2, Elena Spagnuolo2, Giuseppe Di Stefano3 and Giulio Di Toro4, (1)University of Texas at Austin, Austin, TX, United States, (2)National Institute of Geophysics and Volcanology, Rome, Italy, (3)INGV National Institute of Geophysics and Volcanology, Rome, Italy, (4)University of Padova, Padova, Italy
