T21B:
Insights on the Tectonic Evolution of the Salton Trough and Northern Gulf of California from Recent Multidisciplinary Studies Posters

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Session ID#: 12952

Session Description:
Oblique motion at the Pacific-North American plate boundary is rifting the continent in the Salton Trough in southern California and northern Mexico, and in the northern Gulf of California.  Rapid sedimentation from the Colorado River has influenced the mechanisms of rifting, resulting in large differences from the southern Gulf, which has experienced similar total extension.  Rift-related magmatism is localized at the surface but more extensive at depth.  Substantial thinning and perhaps complete breakup of the continent have occurred, but seafloor spreading has apparently not initiated.  Transform and extensional faults interact in complex patterns, with implications for earthquake hazard. Recent multi-disciplinary studies in both countries have focused on rifting processes and the earthquake hazard of this geologic province.  This session invites contributions from all disciplines that address our understanding of the tectonic evolution and the magmatic and deformation processes of this complex and evolving plate boundary.
Primary Convener:  John A Hole, Virginia Tech, Blacksburg, VA, United States
Conveners:  Patricia Persaud, Caltech, Pasadena, United States, Arturo Martin, Centro de Investigación Científica y de Educación Superior de Ensenada, División Ciencias de la Tierra, Ensenada, Mexico and Rebecca J Dorsey, University of Oregon, Department of Earth Sciences, Eugene, OR, United States
Chairs:  John A Hole, Virginia Tech, Blacksburg, VA, United States, Arturo Martin, Centro de Investigación Científica y de Educación Superior de Ensenada, División Ciencias de la Tierra, Ensenada, Mexico, Patricia Persaud, Caltech, Pasadena, United States and Rebecca J Dorsey, University of Oregon, Department of Earth Sciences, Eugene, OR, United States
OSPA Liaison:  Rebecca J Dorsey, University of Oregon, Department of Earth Sciences, Eugene, OR, United States
Co-Organized with:
Tectonophysics, Geodesy, and Seismology

Proposed Co-Organized Session with:
  • G - Geodesy
  • S - Seismology
Index Terms:

1209 Tectonic deformation [GEODESY AND GRAVITY]
7230 Seismicity and tectonics [SEISMOLOGY]
8105 Continental margins: divergent [TECTONOPHYSICS]
8106 Continental margins: transform [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Abrupt plate acceleration through oblique rifting: Geodynamic aspects of Gulf of California evolution (Invited) (124183)
Carolina Pagli, Deutsches GeoForschungsZentrum GFZ, Potsdam, Germany
Overview of the Kinematics of the Salton Trough and Northern Gulf of California (Invited) (124325)
Joann M Stock, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States
Structure of the San Andreas Fault Zone in the Salton Trough Region of Southern California: A Comparison with San Andreas Fault Structure in the Loma Prieta Area of Central California (145427)
Gary S Fuis1, Rufus Catchings2, Daniel S Scheirer3, Mark Goldman4, Edward Zhang1 and Klaus Bauer5, (1)USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States, (2)U.S. Geological Survey, Earthquake Science Center, Moffett Field, United States, (3)USGS, GMEG Science Center, Baltimore, MD, United States, (4)USGS Western Regional Offices Menlo Park, Earthquake Science Center, Menlo Park, CA, United States, (5)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
Active tectonics of the Imperial Valley, southern California: fault damage zones, complex basins and buried faults (165333)
Patricia Persaud, Louisiana State University, Department of Geology and Geophysics, Baton Rouge, United States, Yiran Ma, California Institute of Technology, Pasadena, CA, United States, Joann M Stock, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, John A Hole, Virginia Polytechnic Institute and State University, Center for Advanced Subsurface Earth Resource Models, Department of Geosciences, Blacksburg, United States, Gary S Fuis, USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States and Liang Han, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
Evaluating the Possibility of a joint San Andreas-Imperial Fault Rupture in the Salton Trough Region (190006)
Christodoulos Kyriakopoulos, University of California, Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States, David Douglas Oglesby, University of California Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States, Aron J Meltzner, Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore and Thomas K Rockwell, San Diego State University, San Diego, CA, United States
Lithospheric Structure and Active Deformation in the Salton Trough from Coseismic and Postseismic Models of the 2010 Mw 7.2 El Mayor-Cucapah Earthquake (190672)
Eric Jameson Fielding1, Mong-Han Huang2, Haylee Dickinson3, Andrew Mark Freed3, Roland Burgmann4, J. Alejandro Gonzalez-Ortega5 and Christopher Andronicos6, (1)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (2)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (3)Purdue University, West Lafayette, IN, United States, (4)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (5)Institute of Geophysics and Planetary Physics La Jolla, La Jolla, CA, United States, (6)Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, United States
A Crustal Velocity Model for South Mexicali Valley, Baja California, México. (197836)
Erik Ramirez, Autonomous University of Baja California, Mexicali, Mexico, Antonio Vidal-Villegas, Center for Scientific Research and Higher Education at Ensenada, Ensenada, Mexico, Joann M Stock, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States and Antonio Gonzalez-Fernandez, CICESE National Center for Scientific Research and Higher Education of Mexico, Geology, Ensenada, Mexico
An Evaluation of Subsurface Plumbing of a Hydrothermal Seep Field and Possible Influence from Local Seismicity from New Time-Series Data Collected at the Davis-Schrimpf Seep Field, Salton Trough, California (195480)
Amar Rao, California State University Long Beach, Long Beach, CA, United States and Nate Onderdonk, Long Beach State Univ., Long Beach, CA, United States
Heat Flow Budget of the Gulf of California Rift: Preliminary Results of a High Resolution Survey Across the Wagner Basin (187158)
Raquel Negrete-Aranda, CICESE, Geology, Ensenada, Mexico, Florian Neumann, Helmholtz-Zentrum Potsdam, Deutsches GeoForschungsZentrum GFZ, Geoenergy, Potsdam, Germany; Center for Scientific Research and Higher Education at Ensenada, Graduate School Geology Department, Ensenada, Mexico, Robert N Harris, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, Juan Contreras, Centro de Investigación Científica y de Educación Superior de Ensenada, Geología, Ensenada, BJ, Mexico, Antonio Gonzalez-Fernandez, CICESE National Center for Scientific Research and Higher Education of Mexico, Geology, Ensenada, Mexico and John G Sclater, University of California San Diego, Geosciences Research Division, La Jolla, CA, United States
The Effects of Rapid Sedimentation upon Continental Breakup: Kinematic and Thermal Modeling of the Salton Trough, Southern California, Based upon Recent Seismic Images (193238)
Liang Han, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, John A Hole, Virginia Polytechnic Institute and State University, Center for Advanced Subsurface Earth Resource Models, Department of Geosciences, Blacksburg, United States, Robert P Lowell, Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, VA, United States, Joann M Stock, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States and Gary S Fuis, USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States
Recent Volcanism in the Northern Gulf of California: The Effects of Thick Deltaic Sedimentation in Magmatic Differentiation (190061)
Arturo Martin, Centro de Investigación Científica y de Educación Superior de Ensenada, División Ciencias de la Tierra, Ensenada, Mexico, Juan Carlos Hurtado, PEMEX Exploración, Villahermosa, Mexico, Bodo Weber, CICESE, División Ciencias de la Tierra, Ensenada, Mexico and Axel Karl Schmitt, University of Heidelberg, Institute of Earth Sciences, Heidelberg, Germany
Southern San Andreas Fault Slip History Refined Using Pliocene Colorado River Deposits in the Western Salton Trough (139456)
Rebecca J Dorsey, University of Oregon, Department of Earth Sciences, Eugene, OR, United States, Scott E K Bennett, U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, Portland, United States and Bernard A Housen, Western Washington University, Geology, Bellingham, WA, United States
Imaging of Upper-Mantle Upwelling Beneath the Salton Trough, Southern California, by Joint Inversion of Ambient Noise Dispersion Curves and Receiver Functions (153975)
Shahar Barak, Stanford Earth Sciences, Stanford, CA, United States and Simon L Klemperer, Stanford University, Department of Geophysics, Stanford, CA, United States

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