GSA 2020 Connects Online

Session No. 109
Wednesday, 28 October 2020: 10:00 AM-12:00 PM

T10. Subduction Zone Slip Behavior: The Intersection of Deformation and Metamorphism

GSA Structural Geology and Tectonics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division

 

Alissa Kotowski, Caroline Seyler and Cailey B. Condit, Advocates
Paper #
Start Time
 
10:00 AM
Introductory Remarks
10:05 AM
PATH-DEPENDENT STRENGTH AND DEFORMATION BEHAVIOR OF SHALLOW SUBDUCTION FAULT ROCK (Invited Presentation)
BELZER, Ben and FRENCH, Melodie, Department of Earth, Environmental and Planetary Sciences, Rice University, 6100 Main Street, Houston, TX 77005
10:20 AM
DEFORMATION MECHANISM EVOLUTION DURING SUBDUCTION RELATED DEFORMATION, EASTERN BELT FRANCISCAN COMPLEX, NORTHERN CALIFORNIA
SCHMIDT, William L., Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740 and PLATT, John, Department of Earth Sciences, Univ of Southern California, 3651 Trousdale Parkway, Zumberge Hall 117, Los Angeles, CA 90089-074
10:35 AM
BRITTLE-DUCTILE DEFORMATION IN HIGH-PRESSURE CONTINENTAL UNITS OF THE NORTHERN APENNINES REVEAL DEEP EPISODIC TREMOR AND SLIP
GIUNTOLI, Francesco, Department of Biological, Geological and Environmental Sciences, Università di Bologna, Bologna, 40126, Italy and VIOLA, Giulio, Department of Biological, Geological and Environmental Sciences, University of Bologna, Piazza di Porta San Donato 1, Bologna, 40126, Italy
10:50 AM
METAMORPHIC DEHYDRATION FROM OCEANIC CRUST PROVIDES FLUID SOURCES FOR DEEP SLOW SLIP AND TREMOR IN SUBDUCTION ZONES
CONDIT, Cailey B., Department of Earth and Space Science, University of Washington, Seattle, WA 98103, GUEVARA, Victor E., Department of Geology, Amherst College, Amherst, MA 01002, DELPH, Jonathan R., Department of Earth Sciences, University of Oregon, 100 Cascade Hall, 1272 University of Oregon, Eugene, OR 97403 and FRENCH, Melodie, Department of Earth, Environmental and Planetary Sciences, Rice University, 6100 Main Street, Houston, TX 77005
 
11:05 AM
Discussion
11:15 AM
RELATING SEISMIC STRUCTURE TO SEISMOGENIC BEHAVIOR IN THE CASCADIA FOREARC (Invited Presentation)
DELPH, Jonathan R., Department of Earth, Atmospheric, and Planetary Sciences, 550 Stadium Mall Drive, West Lafayette, IN 47907
11:30 AM
SIGNIFICANCE OF HYDROUS ECLOGITE IN OCEANIC SUBDUCTION ZONES (Invited Presentation)
WHITNEY, Donna L., Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN 55455, KANG, Patricia, Department of Earth & Environmental Sciences, University of Minnesota, Minneapolis, MN 55455 and FORNASH, Katherine, Department of Geological Sciences, Ohio University, Athens, OH 45701
11:45 AM
RAPID REACTION-INDUCED BREACHING OF THE SLAB LOWER CRUST SPARKS DEEP FLUID RELEASE BENEATH ARCS
SMIT, Matthijs A., Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, 2207 Main Mall, Vancouver, BC V6T 1Z4, Canada and VON STRANDMANN, Phillip Pogge, University College London, London, United Kingdom
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