T41D:
The Interplay Between Fault Properties, Structure, and (A)seismic Slip Processes Posters

Submit an Abstract to this Session



Session ID#: 23006

Session Description:
Hydro-mechanical properties of fault zones such as poro-elastic
coupling and frictional stability are intrinsically connected to
structural evolution (e.g. slip localization and changes in roughness)
and slip characteristics from episodic tremor and creep to slow-slip
and large earthquakes. While exhumed faults provide insight into
long-term deformation, much remains unknown about in-situ processes at
seismogenic depth. This disconnect may be bridged by laboratory
experiments and seismological analysis. We solicit experimental,
seismologic and geologic studies of fault structure, hydrology, and
slip localization. Topics of interest might include: fault roughness
evolution and mirror-like surfaces, observations and mechanics of slip localization and
delocalization, feedbacks between fault properties and rupture
dynamics, novel methods to observe strain localization in lab and
nature, coupling natural fault structures with seismicity distributions, effects of
environmental conditions (e.g. water content, temperature, confining
pressures) on earthquake nucleation and slip behavior, and slip
processes in near surface environments, such as under glaciers and
landslides.
Primary Convener:  Thomas Goebel, University of California Santa Cruz, Santa Cruz, CA, United States
Conveners:  Shalev Siman-Tov, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, CA, United States and Brooks Proctor, USGS Geological Survey, Menlo Park, CA, United States
Chairs:  Shalev Siman-Tov, Geological Survey of Israel, Geological Hazard Divisions, Jerusalem, Israel, Brooks Proctor, USGS Geological Survey, Menlo Park, CA, United States and Thomas Goebel, University of California Santa Cruz, Santa Cruz, CA, United States
OSPA Liaison:  Shalev Siman-Tov, Geological Survey of Israel, Geological Hazard Divisions, Jerusalem, Israel
Index Terms:

7230 Seismicity and tectonics [SEISMOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8123 Dynamics: seismotectonics [TECTONOPHYSICS]
8163 Rheology and friction of fault zones [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Influence of mineralogy and microstructures on strain localization and fault zone architecture of the Alpine Fault, New Zealand (223381)
Christoph Janssen1, Bernhard Schuck1, Anja Schleicher1, Virginia Toy2 and Georg Dresen1, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)University of Otago, Dunedin, New Zealand
Mathematical modeling and numerical simulation of unilateral dynamic rupture propagation along very-long reverse faults (234437)
Shiro Hirano, Ritsumeikan University, Department of Physical Science, Shiga, Japan
Anti-aging Friction of Carbonate Fault Mirror and its Microstructural Interpretation (234447)
Yohan Park, Korea University, Seoul, Korea, Republic of (South), Jin-Han Ree, Korea University, Department of Earth and Environmental Sciences, Seoul, Korea, Republic of (South) and Takehiro Hirose, JAMSTEC, Kochi Institute for Core Sample Research, Nankoku, Japan
Smoothing of Fault Slip Surfaces by Scale Invariant Wear (236522)
Kelian Dascher-Cousineau, McGill University, Department of Earth and Planetary Sciences, Montreal, QC, Canada and James D Kirkpatrick, Colorado State University, Fort Collins, United States
Scaly fabrics and veins of tectonic mélanges in the Shimanto Belt, SW Japan (239034)
Gabrielle Elizabeth Ramirez, Pennsylvania State University Main Campus, University Park, PA, United States, Donald M Fisher, Pennsylvania State University, Department of Geosciences, University Park, United States, Andrew Smye, Pennsylvania State University Main Campus, Department of Geosciences, University Park, United States, Yoshitaka Hashimoto, Kochi University, Kochi, Japan and Asuka Yamaguchi, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
A test for the minimum scale of grooving on the Amatrice and Norcia earthquakes (263367)
Kristina Okamoto, University of California Santa Cruz, Earth and Planetary Sciences, Santa Cruz, United States, Emily E Brodsky, University of California Santa Cruz, Department of Earth and Planetary Sciences, Santa Cruz, CA, United States and Andrea Billi, Consiglio Nazionale delle Ricerche, Rome, Italy
The Role of Compliance and Reaction Rate in Dehydration Weakening and Frictional Stability of Antigorite (275306)
Eric Burdette, U.S. Geological Survey, Earthquake Science Center, Moffett Field, United States, Keishi Okazaki, JAMSTEC, Kochi Institute for Core Sample Research, Nankoku, Japan and Greg Hirth, Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States

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