GSA Connects 2021 in Portland, Oregon

Session No. 62
Sunday, 10 October 2021: 2:30 PM-6:30 PM
Exhibit Hall A (Oregon Convention Center)

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

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

Authors will be present from .

 

Paper #
Booth #
113
MID-MIOCENE TO PRESENT UPPER-PLATE DEFORMATION OF THE SOUTHERN CASCADIA FOREARC: EFFECTS OF THE SUPERPOSITION OF SUBDUCTION AND TRANSFORM TECTONICS
MCKENZIE, Kirsty A., Pennsylvania State University, Department of Geosciences, University Park, PA 16802-2713, FURLONG, Kevin P., Department of Geosciences, Pennsylvania State University, University Park, PA 16802 and KIRBY, Eric, UNC, Chapel Hill, Department of Geological Sciences, 104 South Road, Campus Box 3315, Chapel Hill, NC 27599-3315
114
DOES FOREARC EROSION MIRROR SHORT-TERM MEGATHRUST EARTHQUAKE CYCLE DEFORMATION?
JENSEN, Chantel, Western Washington University, 516 High Street, Bellingham, WA 98225, AMOS, Colin, Western Washington UniversityGeology Department, 516 High St, Bellingham, WA 98225-5946, LARSEN, Isaac, Department of Geosciences, University of Massachusetts Amherst, 611 North Pleasant St, 233 Morrill Science Center, Amherst, MA 01003, CLARK, Kate, Hazards Group, GNS Science, PO Box 30-368, Lower Hutt, 5040, New Zealand, LITCHFIELD, Nicola J., GNS Science, PO Box 30-368, Lower Hutt, 5040, New Zealand, DELANO, Jaime, Earth and Environment, University of Canterbury, 20 Kirkwood Avenue,, Upper Riccarton, Christchurch, CO 8041, New Zealand and QUIRK, Brendon, Dept. of Geosciences, University of Massachusetts Amherst, Geneseo, NY 14454
115
QUATERNARY NEOTECTONIC LINEAMENTS IN THE HYPERARID ATACAMA DESERT, NORTHERN CHILE: LONG-TERM RECORDS OF FOREARC STRAIN
PERMAN, Emily A.1, GALLEN, Sean2, SINGLETON, John1, MAVOR, Skyler1, GOMILA, Rodrigo3, SEYMOUR, Nikki M.1 and MUELLER, Karl4, (1)Geosciences, Colorado State University, 400 University Ave., Fort Collins, CO 80523-0001, (2)Geosciences, Colorado State University, 400 University Ave., Fort Collins, CO 80523, (3)Geosciences, University of Padova, Via Giovanni Gradenigo, 6, Padova, 35131, Italy, (4)Geological Sciences, University of Colorado Boulder, Boulder, CO 80309
116
IDENTIFICATION AND STUDY OF BURIED SCARPS ASSOCIATED WITH CO-SEISMIC COASTAL SUBSIDENCE: EXAMPLES FROM KAMCHATKA, RUSSIA
PINEGINA, Tatiana, Institute of Volcanology & Seismology FEB RAS, Piip Boulevard 9, Petropavlovsk-Kamchatsky, 683006, Russian Federation and BOURGEOIS, Joanne, Earth and Space Science, University of Washington, Box 351310, Seattle, WA 98195-1310
Handouts
  • Pinegina_etal_2020QSR_Scarps.pdf (9.2 MB)
  • 117
    UPPER PLATE RIGIDITY AND SHALLOW SUBDUCTION ZONE SLIP STABILITY IN DATA-CONSTRAINED SEISMIC-CYCLE MODELS OF THE CENTRAL HIKURANGI MARGIN, NEW ZEALAND
    BIEMILLER, James1, ARNULF, Adrien2, LAVIER, Luc2 and WALLACE, Laura M.3, (1)Institute for Geophysics & Planetary Physics, Scripps Institution of Oceanography, UC San Diego, La Jolla, CA 92037, (2)Institute for Geophysics, University of Texas at Austin, 10601 Exploration Way, Austin, TX 78758, (3)Institute for Geophysics, University of Texas at Austin, PO Box 7456, Austin, TX 78713
    Handouts
  • GSA2021Hikurangi_cropped_smallerPDF.pdf (32.0 MB)
  • 118
    STRUCTURAL EVOLUTION OF THE HATCHER PASS SCHIST, SOUTHERN TALKEETNA MOUNTAINS, ALASKA
    MULLER, Isabella1, SUHEY, Jane1, REGAN, Sean2, HOLLAND, Mark E.3, WELLINGHAM, Amanda4 and MEZGER, Jochen5, (1)Dept of Geosciences, University of Alaska Fairbanks, 900 Yukon Dr, Fairbanks, AK 99775-9702, (2)Geophysical Institute, University of Alaska Fairbanks, 900 Yukon Dr, Fairbanks, AK 99775-9702, (3)Department of Life, Earth, and Environmental Sciences, West Texas A&M University, 2403 Russell Long Blvd., Canyon, AK 79015, (4)Dept of Geological and Geophysical Surveys, Fairbanks, AK 99775-9702, (5)University of Alaska Fairbanks Geosciences, 1930 Yukon Drive, Room 308 Reichardt, Fairbanks, AK 99775-0001
    119
    THE AGE AND ORIGIN OF CRYSTALLINE GNEISS IN THE PLOMOSA MOUNTAINS, WEST-CENTRAL ARIZONA
    BASICH, Luka1, SEYMOUR, Nikki M.2, HOURIGAN, Jeremy K.3 and ANFINSON, Owen A.1, (1)Department of Geology, Sonoma State University, 1801 East Cotati Ave, Rohnert Park, CA 94928, (2)Department of Geological Sciences, Stanford University, Stanford, CA 94305; Department of Earth and Planetary Sciences, University of California, Santa Cruz, Santa Cruz, CA 95064, (3)Department of Earth and Planetary Sciences, University of California, Santa Cruz, Santa Cruz, CA 95064
    120
    METALS IN KAMCHATKA MANTLE WEDGE LINKED TO CU-AU-AG DEPOSITS IN MAGMATIC ARCS
    KEPEZHINSKAS, Pavel1, BERDNIKOV, Nikolai1, KEPEZHINSKAS, Nikita2 and KONOVALOVA, Natalya1, (1)Kosygin Institute of Tectonics and Geophysics, Russian Academy of Sciences, Khabarovsk, 680000, Russian Federation, (2)Department of Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB T6G 2E3, Canada
    Handouts
  • GSA 2021 - Avachinsky xenoliths poster (2).pdf (11.3 MB)
  • 121
    SYSTEMATIC GEOCHEMICAL ZONING IN MINERALS FROM HIGH-PRESSURE LOW-TEMPERATURE METAMORPHIC ROCKS: DO UBIQUITOUS PATTERNS REFLECT A UBIQUITOUS PROCESS?
    GEORGE, Freya, Earth & Planetary Sciences, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 21218 and VIETE, Daniel, Earth & Planetary Sciences, Johns Hopkins University, 3400 N Charles St, Baltimore, MD 21218
    122
    SUBDUCTION BEYOND THE ISLAND ARC AND MANTLE WEDGE: EVIDENCE FROM SUBLITHOSPHERIC DIAMONDS AND DEEP EARTHQUAKES
    SHIREY, Steven B.1, WAGNER, Lara S1, WALTER, Michael J1, PEARSON, D. Graham2 and VAN KEKEN, Peter E.1, (1)Earth and Planets Lab, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington, DC 20015-1305, (2)Department of Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, AB T6G 2E3, Canada
    123
    SYNDEPOSITIONAL TECTONISM IN THE BLACK WARRIOR FORELAND BASIN (USA) RECORDED BY LATE MISSISSIPPIAN PALEOSEISMITES
    JACKSON Jr., William, Department of Earth Sciences, University of Memphis, Memphis, TN 38152, MCKAY, Matthew, Geology Department, Missouri State University, 901 S National Ave, Springfield, MO 65897-0027, BARTHOLOMEW, Mervin J., Earth Sciences, University of Memphis, Memphis, TN 38152 and THOMAS, William, Emeritus University of Kentucky, Geological Survey of Alabama, P.O. Box 869999, Tuscaloosa, AL 35486-6999
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