GSA Connects 2022 meeting in Denver, Colorado

Session No. 218
Wednesday, 12 October 2022: 8:00 AM-12:00 PM
504 (Colorado Convention Center)

T40. The Thermal Structure of Subduction Zones: Constraints, Evolution, and Consequences

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Geophysics and Geodynamics Division

 

Cailey Condit, Besim Dragovic, Victor Guevara and Adam F Holt, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:05 AM
SUBDUCTION INITIATION IN THE IAPETUS OCEAN: WHEN, WHERE AND HOW?
VIETE, Daniel, Department of Earth & Planetary Sciences, Johns Hopkins University, 3400 N Charles Street, Baltimore, MD 21218, BECKER, Naomi, 609 Somerset Rd Apt C5, Baltimore, MD 21210-2734, GUICE, George, 1900 Lamont St NW Apt 202, Washington, DC 20010-2628 and CROWLEY, James L., Department of Geosciences, Boise State University, Boise, ID 83725
8:20 AM
MODELING THE THERMAL EVOLUTION OF FOSSIL SUBDUCTION PLATE INTERFACES (Invited Presentation)
WADA, Ikuko, Department of Earth and Environmental Sciences, University of Minnesota-Twin Cities, 116 Church Street SE, Minneapolis, MN 55455, ZHOU, Xin, Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN 55455, PENNISTON-DORLAND, Sarah, Department of Geology, University of Maryland, College Park, MD 20742, HARVEY, Kayleigh, Department of Earth and Environmental Sciences, Boston College, Boston, MA 02467, DRAGOVIC, Besim, School of Earth, Ocean, and Environment, University of South Carolina, Columbia, SC 29208 and VAN KEKEN, Peter E., Earth and Planets Lab, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington, DC 20015-1305
8:40 AM
NEW CONSTRAINTS ON THE THERMAL STRUCTURE OF THE CATALINA SCHIST
TAYLOR, Alexander, Department of Geology, University of Maryland, 8000 Regents Dr., College Park, MD 20742 and PENNISTON-DORLAND, Sarah, Department of Geology, University of Maryland, College Park, MD 20742
8:55 AM
CONSTRAINING THE THERMAL STRUCTURE OF FOSSIL SUBDUCTION PLATE INTERFACES: COMBINING PETROLOGY AND GEODYNAMICS
PENNISTON-DORLAND, Sarah1, HARVEY, Kayleigh2, ZHOU, Xin3, WADA, Ikuko4, STEELE, Andrew5, BULLOCK, Emma5, RAIA, Natalie, PhD6, DRAGOVIC, Besim7 and VAN KEKEN, Peter E.8, (1)Department of Geology, University of Maryland, College Park, MD 20742, (2)Department of Earth and Environmental Sciences, Boston College, Boston, MA 02467, (3)Department of Earth and Environmental Sciences, University of Minnesota, Minneapolis, MN 55455, (4)Department of Earth and Environmental Sciences, University of Minnesota-Twin Cities, 116 Church Street SE, Minneapolis, MN 55455, (5)Carnegie Institution for Science, Earth and Planets Laboratory, Washington, DC 20015, (6)University of Minnesota Dept of Earth Sciences, Tate Hall, 150, 116 Church St SE, Minneapolis, MN 55455-0149, (7)School of Earth, Ocean, and Environment, University of South Carolina, Columbia, SC 29208, (8)Earth and Planets Lab, Carnegie Institution for Science, 5241 Broad Branch Road, NW, Washington, DC 20015-1305
9:10 AM
THE THERMAL STRUCTURE OF AN ACTIVE CONTINENTAL ARC: INSIGHTS FROM GARNET PYROXENITE AND PERIDOTITE THERMOBAROMETRY IN THE NORTH ANDES
ZIEMAN, Lisa, Dept. of Geosciences, University of Arizona, 1040 E 4th St, Gould-Simpson Bldg, Tucson, AZ 85721, IBANEZ-MEJIA, Mauricio, Dept. of Geosciences, University of Arizona, Tucson, AZ 85721, ROONEY, Alan, Department of Geology and Geophysics, Yale University, 210 Whitney Ave., New Haven, CT 06511, PARDO, Natalia, Department of Geosciences, University of Los Andes, Bogota, 111711, Colombia, BLOCH, Elias, University of Lausanne, Institute of Earth Sciences, Lausanne, 1015, Switzerland, SCHOENE, Blair, Princeton University Geosciences, 208 Guyot Hall, Princeton, NJ 08544-0001 and SZYMANOWSKI, Dawid, Institute of Geochemistry and Petrology, Department of Earth Sciences, ETH Zurich, Clausiusstrasse 25, Zürich, 8092, Switzerland
9:25 AM
INFLUENCE OF DUCTILE DEFORMATION MECHANISMS ON SUBDUCTION ZONE SEISMICITY AND FLUID FLOW
FISHER, Donald, Department of Geosciences, The Pennsylvania State University, University Park, PA 16802 and HIRTH, Greg, Department of Earth, Environmental and Planetary Sciences, Brown University, Box 1846, 324 Brook St, Providence, RI 02912
 
9:40 AM
Break
9:55 AM
RELATIVE STRENGTHS AND DEFORMATION MECHANISMS OF AMPHIBOLE-RICH ROCKS IN HOT AND COLD SUBDUCTION ZONES (Invited Presentation)
KOTOWSKI, Alissa, PhD1, SEYLER, Caroline2, KIRKPATRICK, James3 and RICHARD, Danielle3, (1)Department of Earth Sciences, Utrecht University, Utrecht, 3584CS, Netherlands, (2)Jackson School of Geosciences, Austin, TX 78712, (3)McGill UniversityEarth and Planetary Sciences, 3450 University St, Rm FDA340, Montreal, QC H2T 2R8, CANADA
10:15 AM
FLUID RELEASE AND SILICA METASOMATISM NEAR THE PLATE INTERFACE BENEATH GUERRERO, MEXICO: PREDICTING TALC PRODUCTION AT THE CONDITIONS OF EPISODIC TREMOR AND SLOW SLIP
LINDQUIST, Peter1, CONDIT, Cailey1, GUEVARA, Victor2, HERNANDEZ URIBE, David3 and HOOVER, William1, (1)Dept. of Earth and Space Sciences, University of Washington, Seattle, WA 98195, (2)Geology Dep, Amherst College, 220 S Pleasant St, Amherst, MA 01002-2372, (3)Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48103
10:30 AM
ZIRCON, APATITE, AND GARNET: RECORDERS OF METAMORPHISM AND METASOMATISM ON THE SUBDUCTION INTERFACE
POULAKI, Eirini, Department of Geosciences, The Jackson School of Geosciences at The University of Texas at Austin, 23 San Jacinto Blvd & E 23rd St, Austin, TX 78712, STOCKLI, Daniel F., Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, GARBER, Joshua, College of Earth and Mineral Sciences, Penn State, Department of Geosciences, State College, PA 16803 and SMYE, Andrew J., Department of Geosciences, The Pennsylvania State University, University Park, PA 16802
10:45 AM
COMPUTING RATES AND DISTRIBUTIONS OF ROCK RECOVERY IN SUBDUCTION ZONES
KERSWELL, Buchanan, Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, KOHN, Matthew, Department of Geosciences, Boise State University, 1910 University Dr, Boise, ID 83725 and GERYA, Taras, Institute of Geophysics, ETH Zentrum, Sonneggstrasse 5, Zürich, 8092, Switzerland
11:00 AM
EVIDENCE FOR UHP METAMORPHISM IN STRONGLY OVERPRINTED ROCKS, RHODOPE METAMORPHIC COMPLEX, GREECE
PETERMAN, Emily, Department of Earth and Oceanographic Science, Bowdoin College, 6800 College Station, Brunswick, ME 04011-8468, WILLIAMS, Michael L., Department of Geosciences, University of Massachusetts Amherst, 627 N Pleasant St, Amherst, MA 01003 and HARRIS, Holly E., Department of Earth and Oceanographic Science, Bowdoin College, 6800 College Station, Brunswick, ME 04011
11:15 AM
PEEKING THROUGH THE SLAB WINDOW: EXHUMATION OF ACCRETIONARY SEDIMENTS OVER A SLAB WINDOW IN THE WILLOW CREEK AREA, SOUTHERN TALKEETNA MOUNTAINS, ALASKA
MULLER, Isabella, Dept of Geosciences, University of Alaska Fairbanks, 900 Yukon Dr, Fairbanks, AK 99775-9702, REGAN, Sean, Geophysical Institute, University of Alaska Fairbanks, Fairbanks, AK 99775-9702, HOLLAND, Mark E., Department of Life, Earth, and Environmental Sciences, West Texas A&M University, 2403 Russell Long Blvd., Canyon, AK 79015 and SUHEY, Jane, Geophysical Institute, University of Alaska Fairbanks, 900 Yukon Dr, Fairbanks, AK 99775-9702
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