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GSA Annual Meeting in Phoenix, Arizona, USA - 2019

Session No. 140
Monday, 23 September 2019: 1:30 PM-5:30 PM
Room 132ABC, North Building (Phoenix Convention Center)

T53. Present-Day and Ancient Flat-Slab Subduction in Rock Records, Geophysical Images, and Geodynamic Models

GSA Structural Geology and Tectonics Division

 

Nikki M. Seymour, Yiduo Liu, Tyson Michael Smith and Carl E. Jacobson, Advocates
Paper #
Start Time
140-1
1:30 PM
INTERACTIONS BETWEEN A SUB-HORIZONTAL SUBDUCTING PLATE AND THE OVERLYING CONTINENTAL LITHOSPHERE
CURRIE, Claire A.1, AXEN, Gary2, VAN WIJK, Jolante2 and LIU, Xiaowen1, (1)Department of Physics, University of Alberta, Edmonton, AB T6G 2E1, Canada, (2)Department of Earth & Environmental Science, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801
140-2
1:45 PM
TIMING AND IMPLICATIONS OF LATE CRETACEOUS SHALLOW SUBDUCTION REFRIGERATION OF SOUTHERN CALIFORNIA AND SOUTHWESTERN ARIZONA
GROVE, Marty1, JACOBSON, Carl E.2, SHULAKER, Danielle Ziva1, HOURIGAN, Jeremy3 and LOVERA, Oscar M.4, (1)Department of Geological Sciences, Stanford University, Stanford, CA 94305, (2)Iowa State University, Ames, IA 50011; West Chester University of Pennsylvania, West Chester, PA 19383, (3)Earth and Planetary Sciences, University California Santa Cruz, Santa Cruz, CA 94305, (4)Dept. of Earth, Planetary and Space Sciences, Univ. of California, Los Angeles, CA 90095-1567
140-3
2:00 PM
THE SWAKANE GNEISS WAS UNDERTHRUST BENEATH WASHINGTON OR OREGON, WHILE THE PELONA-OROCOPIA-RAND SCHISTS WERE UNDERTHRUST SEPARATELY BENEATH SOUTHERN CALIFORNIA
DUMITRU, Trevor A., Jasper Canyon Research Inc., 4100 Campana Drive, Palo Alto, CA 94306 and HOURIGAN, Jeremy K., Earth and Planetary Sciences, University of California Santa Cruz, Santa Cruz, CA 95064
140-4
2:15 PM
GEOGRAPHIC EXTENT OF CONTINENTAL LITHOSPHERIC MANTLE METASOMATISM DURING THE LARAMIDE OROGENY BASED ON VOLCANIC ROCK GEOCHEMISTRY, SOUTHWESTERN NORTH AMERICA
FARMER, G. Lang, Department of Geological Sciences and CIRES, University of Colorado, Boulder, CO 80309, FRITZ, Diane, Auraria Library, 1100 Lawrence Street, Denver, CO 80204 and GLAZNER, Allen, Department of Geological Sciences, University of North Carolina, 107 Mitchell Hall CB 3315, Chapel Hill, NC 27599-3315
140-5
2:30 PM
TECTONIC EROSION OF THE HANGING WALL OF THE LARAMIDE LOW-ANGLE SUBDUCTION COMPLEX, SOUTHWEST U.S.A.: ACTINOLITITE, METADIORITE, AND PERIDOTITE INCLUSIONS AND BLOCKS IN THE OROCOPIA SCHIST
HAXEL, Gordon B., US Geological Survey, Flagstaff, AZ 86001; School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ 86011, JACOBSON, Carl E., Iowa State University, Ames, IA 50011; West Chester University of Pennsylvania, West Chester, PA 19383, EPSTEIN, Gabe S., US Geological Survey, Flagstaff, PA 86001; Lehigh University, Bethlehem, AZ 18015 and WITTKE, James H., Northern Arizona University, Flagstaff, AZ 86011
140-6
2:45 PM
EXPLORING THE IMPACT OF SHALLOW SUBDUCTION ON THE OVERRIDING PLATE IN THE CENTRAL ANDES OF PERU (Invited Presentation)
PEREZ, Nicholas D., Department of Geology and Geophysics, Texas A&M University, Halbouty Building, 3115 TAMU, 611 Ross St., College Station, TX 77843
140-7
3:00 PM
MANTLE-TO-CRUST FLUID TRANSFER ABOVE THE PERUVIAN FLAT SLAB: INSIGHT FROM HELIUM ISOTOPES IN THERMAL SPRINGS OF THE PERUVIAN ANDES
HIETT, Coleman D.1, NEWELL, Dennis L.1, UPIN, Heather1, JESSUP, Micah J.2, SCOTT, Brandt E.3, GRAMBLING, Tyler A.2, HUGHES, Cameron A.2 and SHAW, Colin A.4, (1)Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322, (2)Department of Earth and Planetary Sciences, University of Tennessee, 1621 Cumberland Ave., Knoxville, TN 37996-1526, (3)Hess Corporation, Houston, TX 77010; Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322, (4)Department of Earth Sciences, Montana State University, P.O. Box 173480, Bozeman, MT 59717
 
3:15 PM
Break
140-8
3:30 PM
MECHANICAL EFFECTS OF FLAT-SLAB SUBDUCTION ON BASAL CONTINENTAL LITHOSPHERE: INSIGHTS FROM THE SUBDUCTION OF THE NAZCA RIDGE IN PERU
BISHOP, Brandon T., RYAN, Jamie and BECK, Susan L., Department of Geosciences, University of Arizona, Tucson, AZ 85721
140-9
3:45 PM
TIMESCALES OF ANDEAN FLAT-SLAB SUBDUCTION, CORDILLERAN MAGMATISM, AND GEODYNAMIC EVOLUTION
CAPALDI, Tomas N.1, HORTON, Brian K.2, MACKAMAN-LOFLAND, Chelsea3, MCKENZIE, N. Ryan4, STOCKLI, Daniel F.1, ORTÍZ, Gustavo5 and ALVARADO, Patricia A.6, (1)Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, (2)Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, (3)Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, 2305 Speedway Stop C1160, Austin, TX 78712, (4)Department of Earth Sciences, University of Hong Kong, Pokfulam, Hong Kong, (5)Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de San Juan -Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), San Juan, 5406, Argentina, (6)Facultad de Ciencias Exactas, Físicas y Naturales, CIGEOBIO, CONICET-Universidad Nacional de San Juan, San Juan, 5406, Argentina
140-10
4:00 PM
CRETACEOUS-CENOZOIC GROWTH OF THE PATAGONIAN BROKEN FORELAND BASIN, ARGENTINA: CHRONOSTRATIGRAPHIC FRAMEWORK AND PROVENANCE VARIATIONS DURING TRANSITIONS IN ANDEAN SUBDUCTION DYNAMICS
BUTLER, Kristina Lynn1, HORTON, Brian K.2, ECHAURREN, Andres3, FOLGUERA, Andres3 and FUENTES, Facundo4, (1)Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712 – 1722, (2)Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, (3)Instituto de Estudios Andinos, Universidad de Buenos Aires-CONICET, Buenos Aires, Argentina, (4)YPF, Buenos Aires, C1073AAG, Argentina
140-11
4:15 PM
CAUSE AND CONSEQUENCES OF FLAT-SLAB SUBDUCTION AND FOUNDERING: A SOUTH CHINA EXAMPLE (Invited Presentation)
LI, Zheng-Xiang, Earth Dynamics Research Group, School of Earth and Planetary Sciences, Curtin University, Bentley, Perth, WA GPO Box U1987, Australia, LI, Xian-Hua, State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China, ZHU, Kongyang, School of Earth Sciences, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang 310027, China, MENG, Lifeng, School of Geoscience and Technology, Southwest Petroleum University, Chengdu, Sichuan 610503, China, PANG, Chongjin, College of Earth Sciences, Guilin University of Technology, Guilin, 541004, China and TAO, Ni, School of Earth Science and Resources, Chang'an University, Xi'an, 710054, China
140-12
4:30 PM
JURASSIC TO CRETACEOUS INTRACONTINENTAL SHORTENING AND MAGMATISM IN NORTH CHINA: EVIDENCE FOR FLAT-SLAB SUBDUCTION OF THE IZANAGI PLATE
CLINKSCALES, Christopher Andrew, Department of Geosciences, The University of Arizona, Tucson, AZ 85721 and KAPP, Paul, Department of Geosciences, University of Arizona, Tucson, AZ 85721
140-13
4:45 PM
A MESOZOIC FLAT-SLAB SUBDUCTION EVENT IN NORTHEAST ASIA FROM TOP TO BOTTOM
LIU, Yiduo, Department of Earth and Atmospheric Sciences, University of Houston, Rm 312, Science and Research Building 1, 3507 Cullen Blvd, Houston, TX 77204-5007 and SUPPE, John, Department of Earth and Atmospheric Sciences, University of Houston, Rm.312, Science & Research Bldg.1, University of Houston, Houston, TX 77204
140-14
5:00 PM
Withdrawn
 
5:15 PM
Discussion
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