T001
A Multidisciplinary View of Structure, Dynamics and Evolution of the San Andreas Plate Boundary System and other transform faults
Session ID#: 159853
Session Description:
The San Andreas Plate Boundary System (SAPBS) exhibits a wide range of structural and dynamic behavior along its length, including patterns of seismicity, plate boundary width (diffuseness), deformation partitioning, host lithologies, and tectonic history. This variability reflects a wide range of processes, including tectonic inheritance from prior phases of deformation, coupling to short-term climatic and hydrological processes, and processes in adjacent tectonic provinces such as the great valley, Sierran Microplate, and Basin & Range. The complex and variable nature of the SAPBS combined with decades of prior investigation and modern dense instrumentation offers a unique opportunity to explore complex feedbacks between diverse geologic processes in active plate boundaries over a wide range of spatial and temporal scales. In this session, we invite research contributions across the Earth sciences investigating the dynamics of the SAPBS and neighboring tectonic provinces through observational, experimental, and numerical techniques. Studies focusing on other transform fault systems are also welcomed to facilitate direct comparisons with the SAPBS. We particularly solicit studies integrating observations and techniques across disciplines, processes, and scales, as well as those with a synoptic view on transform fault systems.
Index Terms:
8111 Continental tectonics: strike-slip and transform [TECTONOPHYSICS]
8120 Dynamics of lithosphere and mantle: general [TECTONOPHYSICS]
8150 Plate boundary: general [TECTONOPHYSICS]
8177 Tectonics and climatic interactions [TECTONOPHYSICS]
Primary Convener: Chengxin Jiang, Australian National University, Research School of Earth Science, Canberra, ACT, Australia
Conveners: John B Naliboff, New Mexico Institute of Mining and Technology, Earth and Environmental Science, Socorro, United States, Vera Schulte-Pelkum, Univ Colorado Boulder, Boulder, CO, United States and Whitney M Behr, ETH Zurich, Structural Geology and Tectonics Group, Geological Institute, Zurich, Switzerland
Student/Early Career Convener: Chengxin Jiang, Australian National University, Research School of Earth Science, Canberra, ACT, Australia
Complex patterns of past and ongoing crustal deformations in Southern California revealed by seismic azimuthal anisotropy (Invited) (1041240)
Ping Tong, Nanyang Technological University, Division of Mathematical Sciences, School of Physical and Mathematical Sciences, Singapore, Singapore, Shucheng Wu, Nanyang Technological University, Singapore, Singapore, Chengxin Jiang, Australian National University, Research School of Earth Science, Canberra, ACT, Australia and Vera Schulte-Pelkum, Univ Colorado Boulder, Boulder, CO, United States
Revisiting the role of geometrical complexity in rupture propagation and arrest in strike-slip earthquakes (Invited) (1047031)
Alba Mar Rodriguez Padilla, University of California Davis, Earth and Planetary Sciences, Davis, United States, Sophia White, University of California Los Angeles, Los Angeles, United States, Vanessa Herrera, San Diego State University, San Diego, CA, United States and Michael E Oskin, Univ. of California, Davis, Davis, CA, United States
Making the San Andreas Plate Boundary (1067025)
Kevin P Furlong, Pennsylvania State University Main Campus, University Park, United States and Kirsty A McKenzie, Pennsylvania State University, Department of Geosciences, University Park, PA, United States
Broad Fault Zones Enable Deep Fluid Transport and Limit Earthquake Magnitude: Evidence from the Chain Transform (1080169)
Nicholas Harmon, Woods Hole Oceanographic Institution, Woods Hole, United States, Konstantinos Leptokaropoulos, University of Southampton, Ocean and Earth Science, Southampton, SO14, United Kingdom, Catherine Rychert, Woods Hole Oceanographic Institution, Ocean and Earth Science, Woods Hole, United States, David Schlaphorst, Universidade de Lisboa, Instituto Dom Luiz, Lisboa, Portugal, Ingo Grevemeyer, GEOMAR, Kiel, Germany, J Michael Kendall, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom and Satish Chandra Singh, Université de Paris, Institut de Physique du Globe de Paris, CNRS, Paris Cedex 05, France
Continental Transform Evolution: Insight from the Makkah-Madinah Transform Zone (1088689)
Thamer Z. Aldaajani1, Abdullah Bamousa2, Mansour K Alotaibi3, Khalid Almalki3, Hani Khalil4 and Kevin P Furlong5, (1)King Abdulaziz City for Science and Technology, Geodynamics Research Lab, Riyadh, Saudi Arabia, (2)Taibah University, Madinah, Saudi Arabia, (3)KACST, Riyadh, Saudi Arabia, (4)Alexandria University, Alexandria, Egypt, (5)Penn State Univ, University Park, PA, United States
Large Events on the Southern San Andreas Fault Modulated by Lake Filling Events (1092786)
Ryley Hill, Scripps Institution of Oceanography, La Jolla, United States, Matthew Weingarten, Department of Geological Sciences, San Diego State University, San Diego, CA, United States, Thomas K Rockwell, San Diego State University, Department of Geological Sciences, San Diego, CA, United States and Yuri A Fialko, Univ California San Diego, La Jolla, United States
Strike-Slip Faulting in the Cascadia Backarc: Neotectonic Mapping and IRSL Geochronology Reveal Normal-Oblique Dextral Slip Rates Along the Active Tumalo Fault, Sisters Fault Zone, Central Oregon, USA (1112543)
Daniel Mongovin1, Michael H Taylor1, Sean P Bemis2 and Andrew KR Hoxey3, (1)University of Kansas, Department of Geology, Lawrence, United States, (2)Virginia Polytechnic Institute and State University, Department of Geosciences, Blacksburg, United States, (3)University of Kansas, Department of Geology, Lawrence, KS, United States
The Southern San Andreas Fault Zone: Synthesis of Crustal Deformation Processes from Seismicity Observations and Interpretations (1117659)
Egill Hauksson1, Joann M Stock1 and Lucile Jones2,3, (1)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, (2)California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States, (3)Dr. Lucy Jones Center for Science and Society, Pasadena, United States
A rheologic model for the seismogenic behavior of oceanic transform faults (1131505)
Mark D Behn, Boston College, Earth and Environmental Sciences, Chestnut Hill, United States, Margaret S Boettcher, University of New Hampshire, Durham, NH, United States, Jean-Arthur L Olive, WHOI, Woods Hole, United States, Jessica M Warren, University of Delaware, Newark, DE, United States and Greg Hirth, Brown Univeristy, Department of Earth, Environmental, and Planetary Sciences, Providence, RI, United States
How Does the San Andreas Fault Extend into the Deep Crust? Testing Wavespeed Models of Southern California Using Gravity Modeling (1158092)
Masooma Hasnain1,2 and Simon L Klemperer1, (1)Stanford University, Geophysics, Stanford, United States, (2)University of California, Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States
The Northeast Dip of the Southern San Andreas Fault from Space Geodetic and Seismic Imaging (1165414)
Ellis Vavra1, Hongrui Qiu2,3, Benxin Chi4, Pieter-Ewald Share5, Amir A Allam6, Matthias Morzfeld1, Frank Vernon1, Yehuda Ben-Zion7 and Yuri A Fialko1, (1)Scripps Institution of Oceanography, University of California, San Diego, Institute of Geophysics and Planetary Physics, La Jolla, United States, (2)Massachusetts Institute of Technology, Cambridge, United States, (3)Lawrence Berkeley National Laboratory, Berkeley, United States, (4)Chinese Academy of Sciences, State Key Laboratory of Geodesy and Earth’s Dynamics, Innovation Academy for Precision Measurement Science and Technology, Wuhan, China, (5)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, United States, (6)University of Utah, Department of Geology & Geophysics, Salt Lake City, United States, (7)University of Southern California, Department of Earth Sciences and Southern California Earthquake Center, Los Angeles, United States
The surface expression of the Gofar oceanic transform fault, East Pacific Rise using newly acquired, 1m-resolution multibeam bathymetry from AUV Sentry (1165988)
Paige Koenig1, Emily C Roland2, Margaret S Boettcher3, Jessica M Warren4, Christopher R German5, Rob L Evans6, Andrew Gase7, Wenyuan Fan8, Jianhua Gong8, Yajing Liu9 and Melinda Bahruth4, (1)Western Washington University, Bellingham, WA, United States, (2)Western Washington University, Geology Department and Marine and Coastal Sciences Program, Bellingham, WA, United States, (3)University of New Hampshire, Durham, NH, United States, (4)University of Delaware, Newark, DE, United States, (5)WHOI, Woods Hole, United States, (6)Woods Hole Oceanographic Institution, Woods Hole, United States, (7)University of Texas at Austin, Austin, TX, United States, (8)Scripps Institution of Oceanography, La Jolla, CA, United States, (9)McGill University, Department of Earth and Planetary Sciences, Montreal, QC, Canada
Fault zone evolution along complex plate boundaries: A case study from the Eastern California shear zone (1170300)
George Pharris, New Mexico Institute of Mining and Technology, Socorro, NM, United States, John B Naliboff, New Mexico Institute of Mining and Technology, Earth and Environmental Science, Socorro, United States and Veronica Prush, New Mexico Institute of Mining and Technology, Socorro, United States
New Slip Rates Along the Garlock Fault Zone During the Mid-Pleistocene and Pliocene from Provenance of Fanglomerate Deposits (1176292)
Sydney Maguire, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, Eric Kirby, University of North Carolina at Chapel Hill, Chapel Hill, United States and J. Douglas Walker, University of Kansas, Geology, Lawrence, KS, United States
Determining the Relationship Between the Garlock Fault and the Eastern California Shear Zone Through Detailed Digital Mapping and Age Characterization of Faulted Landforms, Southeastern California. (1181294)
Taylor Murphy1, Sean G Polun1, Tandis Bidgoli2 and Francisco Gomez3, (1)University of Missouri, Department of Geological Sciences, Columbia, United States, (2)California State University San Bernardino, Department of Geological Sciences, San Bernardino, United States, (3)University of Missouri Columbia, Geological Sciences, Columbia, MO, United States
Fine-scale complex fault structure and slip along the San Andreas Fault: Contrasting seismic behaviors in localized and diffuse fault zones (1189764)
Yifang Cheng, University of California Berkeley, Berkeley, United States, Roland Burgmann, Department of Earth and Planetary Science, University of California Berkeley, Berkeley, United States and Richard M Allen, Univ California Berkeley, Berkeley, CA, United States
CANVAS: An Adjoint Waveform Tomography Model of California and Nevada (1192983)
Claire Doody1, Arthur J Rodgers2, Andrea Chiang3, Michael Afanasiev4, Christian Boehm5, Lion Krischer5 and Nathan A Simmons6, (1)University of California Berkeley, Earth and Planetary Science, Berkeley, CA, United States, (2)Lawrence Livermore National Laboratory, Livermore, CA, United States, (3)Lawrence Livermore National Laboratory, Atmospheric, Earth, and Energy Division, Livermore, CA, United States, (4)Mondaic AG, Philadelphia, United States, (5)Mondaic AG, Zurich, Switzerland, (6)Lawrence Livermore Nat'l Lab, Atmospheric, Earth and Energy Division, Livermore, CA, United States
Mass-transport deposit related to transform fault in the Guaymas basin, Gulf of California: basin structure and sediment volume from seismic reflection data (1193227)
Adriana Piña-Páez, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, United States, Joann M Stock, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, Antonio Gonzalez-Fernandez, Centro de Investigación Científica y de Educación Superior de Ensenada, División de Ciencias de la Tierra, San Diego, United States, Arturo Martin, Centro de Investigación Científica y de Educación Superior de Ensenada, División Ciencias de la Tierra, Ensenada, Mexico, Kathleen M Marsaglia, California St Univ Northridge, Northridge, CA, United States and Cristian Gallegos-Castillo, Centro de Investigación Científica y de Educación Superior de Ensenada, Ensenada, Mexico
