S53E:
Seismic Anisotropy and Deformation in the Continental Crust II

Submit an Abstract to this Session



Session ID#: 32869

Session Description:
Seismic anisotropy in the continental crust has many causes, including oriented cracks, layering, and preferred crystallographic orientation of minerals. If crustal rock properties and their expressions in seismic data are well characterized, then observations of seismic anisotropy can be used to better understand the composition, structure, and deformation of the continental crust, which will be particularly useful in the deeper parts of the crust. We invite contributions focused on characterizing seismic anisotropy in the continental crust using multiple methods, including seismic methods (e.g. receiver functions, surface waves, shear-wave splitting, local earthquakes), laboratory methods (e.g. ultrasonic velocity measurements) and texture-determination methods (e.g. EBSD, X-Ray goniometry). We also invite contributions in deformation and shear localization, particularly bridging between microstructure and seismic wavelengths. Our aim is to have a highly interdisciplinary session in which seismic-, laboratory-, and field-based disciplines share knowledge with each other to improve our understanding of the continental crust.
Primary Convener:  Sarah J Brownlee, Wayne State University, Environmental Science and Geology, Detroit, Michigan, United States
Convener:  Vera Schulte-Pelkum, University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences, Boulder, United States
Chairs:  Vera Schulte-Pelkum, University of Colorado at Boulder, Cooperative Institute for Research in Environmental Sciences, Boulder, United States and Cailey Brown Condit, University of Washington, Earth and Space Sciences, Seattle, United States
OSPA Liaison:  Sarah J Brownlee, Wayne State University, Environmental Science and Geology, Detroit, Michigan, United States

Cross-Listed:
  • MR - Mineral and Rock Physics
  • T - Tectonophysics
Index Terms:

7205 Continental crust [SEISMOLOGY]
8025 Mesoscopic fabrics [STRUCTURAL GEOLOGY]
8030 Microstructures [STRUCTURAL GEOLOGY]
8110 Continental tectonics: general [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Plagioclase-dominated Seismic Anisotropy in the Basin and Range Lower Crust (207960)
Rachel E Bernard, Amherst College, Amherst, MA, United States and Whitney M Behr, Structural Geology & Tectonics Group, Dept. of Earth & Planetary Sciences, ETH Zürich, Zürich, Switzerland
Seismic anisotropy from cores of hydrated, deep crustal mafic shear zones: implications for the relationship between strain, deformation mechanisms, and anisotropy magnitude (279056)
Cailey Brown Condit, University of Washington, Earth and Space Sciences, Seattle, United States, Kevin H Mahan, University of Colorado at Boulder, Geological Sciences, Boulder, United States, Vera Schulte-Pelkum, Univ Colorado Boulder, Boulder, United States and Omero Orlandini, University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States
Seismic anisotropy in the continental crust: Using rock elastic tensors to inform seismic inversion (274295)
Sarah J Brownlee, Wayne State University, Environmental Science and Geology, Detroit, Michigan, United States, Vera Schulte-Pelkum, Univ Colorado Boulder, Boulder, United States, Anissha Raju, University of Colorado at Boulder, Boulder, CO, United States, Cailey Brown Condit, University of Washington, Earth and Space Sciences, Seattle, United States, Kevin H Mahan, University of Colorado at Boulder, Geological Sciences, Boulder, United States and Omero Orlandini, University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States
The roles of texture and microstructure for seismic properties and anisotropy of the continental crust (Invited) (219522)
Bjarne Sven Guestav Almqvist, Uppsala University, Department of Earth Sciences, Uppsala, Sweden and David Mainprice, CNRS, MONTPELLIER cedex 05, France
Integrated EBSD Modelling of Seismic Anisotropy for a Major Deep Crustal Shear Zone (284596)
Omero Orlandini, University of Texas at Austin, Department of Geological Sciences, Austin, TX, United States, Kevin H Mahan, University of Colorado at Boulder, Geological Sciences, Boulder, United States, Vera Schulte-Pelkum, Univ Colorado Boulder, Boulder, United States and Tyler C Brown, University of Wyoming, Laramie, WY, United States
Modeling the effects of structure on seismic anisotropy in the Chester gneiss dome, southeast Vermont (229135)
Senan Saif, Wayne State University, Detroit, MI, United States and Sarah J Brownlee, Wayne State University, Environmental Science and Geology, Detroit, Michigan, United States
Reconciling experimental and static-dynamic numerical estimations of seismic anisotropy in Alpine Fault mylonites (226688)
Ludmila Adam1, Marcel Frehner2, Katrina M Sauer3, Virginia Toy3, Simon Guerin-Marthe4 and Carolyn J Boulton5, (1)University of Auckland, School of Environment, Auckland, New Zealand, (2)ETH Zurich, Zurich, Switzerland, (3)University of Otago, Dunedin, New Zealand, (4)University of Durham, Department of Earth Sciences, Durham, United Kingdom, (5)Victoria University of Wellington, Wellington, New Zealand
Stochastic Representations of Seismic Anisotropy: Verification of Effective Media Models and Application to the Continental Crust (244706)
Xin Song, University of Southern California, Los Angeles, CA, United States and Thomas H Jordan, Southern California Earthquake Center, Los Angeles, CA, United States

See more of: Seismology