GSA Connects 2021 in Portland, Oregon

Session No. 6
Sunday, 10 October 2021: 8:00 AM-12:00 PM
B111 (Oregon Convention Center)

T4. Feedbacks between Upper-Plate Deformation, Accretion and Alteration and Plate Boundary Processes in Subduction Systems

GSA Geophysics and Geodynamics Division; GSA Structural Geology and Tectonics Division

 

Christine Regalla, Kirsty Mckenzie, Kristin Morell and David Scholl, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
6-1
8:05 AM
Withdrawn
6-2
8:25 AM
EXPLORING FOREARC DEFORMATION OFFSHORE KODIAK ISLAND USING AMPHIBIOUS SEISMIC OBSERVATIONS (Invited Presentation)
ROLAND, Emily1, PSZCZOLA, Kevin1, BARCHECK, Grace2, ABERS, Geoff2 and SCHWARTZ, Susan3, (1)Western Washington University, Geology Department, MS9080, 516 High Street, Bellingham, WA 98225, (2)Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY 14853, (3)Earth and Planetary Sciences, UC Santa Cruz, Santa Cruz, CA 95064
6-3
8:45 AM
MODERN BATHYMETRIC MAPPING OF THE ALEUTIAN RIDGE (ARC) BETTER REVEALS THE SURFACE, MAGMATIC, AND STRUCTURAL PROCESSES BUILDING ITS GEOMORPHIC FORM
SCHOLL, David, Geology and Geophysics, University of Alaska Fairbanks, 505 South Chandalar Dr., Fairbanks,, Fairbanks, AK 99775, ZIMMERMANN, Mark, National Marine Fisheries Service, NOAA, Alaska Fisheries Science Center, 7600 Sand Point Way NE, Bldg 4, Seattle, WA 98115-6349, PRESCOTT, Megan, Dewberry Engineering, Denver, 990 S. Broadway, #400, Denver, CO 80209, YOGODZINSKI, Gene, School of Earth, Ocean and Environment, University of South Carolina, Columbia, SC 29208 and WHITE, Scott, Earth Ocean and Environment, University of South Carolina, Columbia, SC 29208
6-4
9:00 AM
LARGE SCALE CRUSTAL-BLOCK VERTICAL EXTRUSION BETWEEN THE HINES CREEK AND DENALI FAULTS COEVAL WITH SLIP LOCALIZATION ON THE DENALI FAULT SINCE CA. 45 MA: HAYES RANGE, ALASKA
BENOWITZ, Jeffrey, Unaffilated, PO Box 753851, Fairbanks, AK 99775, ROESKE, Sarah, Earth and Planetary Sciences, University of California, Davis, Davis, CA 95616, REGAN, Sean, Dept of Geosciences, University of Alaska Fairbanks, 900 Yukon Dr, Fairbanks, AK 99775-9702, WALDIEN, Trevor S., Earth and Planetary Sciences, University California- Davis, 2119 Earth and Physical Sciences, One Shields Avenue, Davis, AK 95616, ELLIOTT, Julie, Department of Earth and Environmental Sciences, Michigan State University, 288 Farm Lane, East Lansing, MI 48824 and O'SULLIVAN, Paul, GeoSep Services, GeoSep Services Inc., 1521 Pine Cone Road, Moscow, ID 83843
6-5
9:15 AM
SOUTH GEORGIA MICROCONTINENT AND THE SOUTHERNMOST ANDES: UPPER PLATE EXTENSION, MARGINAL BASIN INVERSION, ESCAPE TECTONICS
DALZIEL, Ian, Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, JJ Pickle Research Campus, 10100 Burnet Road, Austin, TX 78758-4445, MACDONALD, David, School of Geosciences, University of Aberdeen, Meston Building, King's College, Aberdeen, AB24 3UE, Scotland, STONE, Philip, British Geological Survey, The Lyell Centre, Edinburgh, EH114 4AP, United Kingdom and STOREY, Bryan, Gateway Antarctica, University of Canterbury, Prvt Bag 4800, Christchurch, 8053, New Zealand
6-6
9:30 AM
EXHUMATION AND FOREARC DRAINAGE REORGANIZATION IN RESPONSE TO FLAT SLAB SUBDUCTION, PERUVIAN FLAT SLAB
GEORGE, Sarah, 849 N 2nd Ave, Tucson, AZ 85705-7826, PEREZ, Nicholas, Department of Geology and Geophysics, Texas A&M University, Halbouty Building, 3115 TAMU, 611 Ross St., College Station, TX 77843, CURRY, Magdalena Ellis, Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77004, STRUBLE, William, Department of Earth Sciences, University of Oregon, Eugene, OR 97403-3102 and HORTON, Brian K., Jackson School of Geosciences, University of Texas at Austin, 2305 Speedway Stop C1160, Austin, TX 78712-1692
 
9:45 AM
Break
6-7
10:00 AM
LINKING PLATE INTERFACE PROCESSES WITH THE SURFACE EXPRESSION OF SUBDUCTION (Invited Presentation)
DELPH, Jonathan, Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Stadium Mall Dr., West Lafayette, IN 47907 and THOMAS, Amanda M., Department of Earth Sciences, University of Oregon, 100 Cascade Hall, 1272 University of Oregon, Eugene, OR 97403
6-8
10:20 AM
UPPER PLATE DEFORMATION ABOVE AN UNCOUPLED MEGATHRUST: INVESTIGATING THE ROLE OF SPATIALLY VARYING COUPLING IN PRODUCING PATTERNS OF SUBDUCTION ZONE STRAIN
HERMAN, Matthew, Department of Geological Sciences, California State University, Bakersfield, Bakersfield, CA 93311, FURLONG, Kevin P., Department of Geosciences, Pennsylvania State University, University Park, PA 16802 and GOVERS, Rob, Department of Earth Sciences, Utrecht University, Utrecht, 3508 TC, NETHERLANDS
6-9
10:35 AM
INSIGHTS FROM THE GEOLOGICAL RECORD OF DEFORMATION ALONG THE SUBDUCTION INTERFACE AT DEPTHS OF SEISMOGENESIS
FISHER, Donald1, HOOKER, John2, SMYE, Andrew J.1 and CHEN, Tsai-Wei1, (1)Department of Geosciences, The Pennsylvania State University, University Park, PA 16802, (2)Department of Geosciences, Pennsylvania State University, 503 Deike Building, University Park, PA 16802
10:50 AM
TEMPORAL AND SPATIAL LOCALIZATION OF SUBDUCTION AND EXHUMATION SLIP AND ESTIMATES OF ACCRETIONARY VERSUS NON-ACCRETIONARY SLIP: VIEW FROM THE FRANCISCAN COMPLEX
WAKABAYASHI, John, Earth and Environmental Sciences, California State University Fresno, 2576 E San Ramon Ave, M/S ST24, Fresno, CA 93740
11:05 AM
RAMAN THERMOMETRY REVEALS UNSUSPECTED TRANSPRESSIONAL VERTICAL UPLIFT IN THE NACIMIENTO BLOCK OF CENTRAL CALIFORNIA
LACROIX, Brice, Kansas State UniversityGeology, 108 Thompson Hall, Manhattan, KS 66506-3200, LAHFID, Abdeltif, BRGM, Orléans, 45000, France, WARD, Christine, Department of Geology, Kansas State University, 108 Thompson Hall, Manhattan, KS 66506, NIEMI, Nathan, Earth and Environmental Sciences, University of Michigan, 1100 North University Avenue, Ann Arbor, MI 48109, CHAPMAN, Alan, Geology, Macalester College, 1600 Grand Ave., Saint Paul, MN 55105-1801 and KEMPTON, Pamela, Department of Geology, Kansas State University, Manhattan, KS 66502
 
11:20 AM
Poster Pop-ups
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