2014 GSA Annual Meeting in Vancouver, British Columbia (19–22 October 2014)

Session No. 239
Tuesday, 21 October 2014: 1:00 PM-5:00 PM
119/120 (Vancouver Convention Centre-West)

T19. The Geodynamics of Flat-Slab Subduction and Its Influence on Upper Plate Deformation, Magmatism, and Basin Evolution

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

 

Jeff Benowitz, Brian K. Horton and Meghan S. Miller, Advocates
Paper #
Start Time
1:00 PM
THE ONSET AND EVOLUTION OF NEOGENE FLAT SUBDUCTION IN SOUTHERN MEXICO
FERRARI, Luca1, MANEA, Vlad Constantin2, MANEA, Marina2 and OROZCO, Maria Teresa1, (1)Centro de Geociencias, Universidad Nacional Autonoma de Mexico, Campus Juriquilla, Blvd. Juriquilla 3001, Queretaro, 76230, Mexico, (2)Computational Geodynamics Laboratory, Centro de Geociencias, UNAM, Juriquilla, Querétaro, 76230, Mexico
1:20 PM
YOU CAN ONLY SQUEEZE IT SO HARD - CRUSTAL ESCAPE IN CENTRAL AMERICA ASSOCIATED WITH COCOS RIDGE SUBDUCTION
DIXON, Timothy H., School of Geosciences, University of South Florida, Tampa, FL 33620 and LAFEMINA, Peter, Department of Geosciences, 406 Deike Bldg, The Pennsylvania State University, University Park, PA 16802
1:35 PM
THE FORMATION OF THE ALASKA RANGE: ALTERNATING ASYMMETRIC TOPOGRAPHY AND EXHUMATION ACROSS THE DENALI FAULT, AND THE ROLE OF INHERITED STRUCTURES, STRAIN PARTITIONING, THRUST FAULTS AND SOUTHERN ALASKAN PLATE BOUNDARY PROCESSES
FITZGERALD, P.G.1, BENOWITZ, Jeff2, ROESKE, Sarah M.3 and RICCIO, Steven J.1, (1)Department of Earth Sciences, Syracuse University, Syracuse, NY 13244, (2)Geophysical Institute and Geochronology Laboratory, University of Alaska Fairbanks, Fairbanks, AK 99775, (3)Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA 95616
1:50 PM
TECTONIC EVOLUTION OF THE LARAMIDE AND SEVIER BELTS, NORTH AMERICAN CORDILLERA: VARYING RESPONSES OF LITHOSPHERE TO CHANGING SUBDUCTION PATTERNS
YONKEE, Adolph, Department of Earth and Environmental Sciences, Weber State University, 1415 Edvalson St - DEPT 2507, Ogden, UT 84408 and WEIL, Arlo Brandon, Department of Geology, Bryn Mawr College, Bryn Mawr, PA 19010
 
2:10 PM
Break
2:25 PM
FLATTENING THE SLAB: FARALLON PLATE SUBDUCTION AND THE LARAMIDE OROGENY
LIU, Sibiao and CURRIE, Claire A., Department of Physics, University of Alberta, Edmonton, AB T6G 2E1, Canada
2:40 PM
THE IMPORTANCE OF STRATIGRAPHIC ARCHITECTURE IN TRACKING MIGRATION OF DYNAMIC SUBSIDENCE IN THE CORDILLERAN FORELAND BASIN
ASCHOFF, J.L., Dept. Geological Sciences, University of Alaska Anchorage, 3211 Providence Drive, Anchorage, AK 99508
2:55 PM
PALEOGEOGRAPHIC RECORD OF EOCENE FARALLON SLAB ROLLBACK BENEATH NORTH AMERICA
SMITH, M. Elliot, School of Earth and Sustainability, Northern Arizona University, 625 Knoles Drive, Box 4099, Flagstaff, AZ 86011, CARROLL, Alan R., Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St., Madison, WI 53706, JICHA, Brian R., Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706, CASSEL, Elizabeth J., Geology, Sonoma State University, Rohnert Park, CA 94928 and SCOTT, Jennifer J., Chemostrat Canada Ltd., Calgary, AB
3:10 PM
A LARAMIDE CONNECTION BETWEEN WYOMING AND WISCONSIN: DETRITAL ZIRCON GEOCHRONOLOGY OF UPLAND CONGLOMERATE, UPPER MISSISSIPPI RIVER VALLEY
LAMASKIN, Todd A., Department of Earth and Ocean Sciences, University of North Carolina Wilmington, 601 South College Rd., Wilmington, NC 28403 and CARSON, Eric C., Department of Environmental Sciences, Wisconsin Geological and Natural History Survey, 3817 Mineral Point Road, Madison, WI 53705
3:25 PM
THE ROLE OF SUBDUCTED RIDGES IN THE EVOLUTION OF FLAT SLABS
WAGNER, Lara S.1, KNEZEVIC ANTONIJEVIC, Sanja2, KUMAR, Abhash3, BECK, Susan4, LONG, Maureen D.5 and ZANDT, George4, (1)Department of Terrestrial Magnetism, Carnegie Institution for Science, Washington, DC 20015, (2)Department of Geological Sciences, University of North Carolina, CB 3315, Chapel Hill, NC 27599, (3)Geological Sciences, University of North Carolina at Chapel Hill, 104 South Road, Mitchell Hall, Campus Box 3315, Chapel Hill, NC 27599, (4)Department of Geosciences, University of Arizona, Tucson, AZ 85721, (5)Department of Geology and Geophysics, Yale University, New Haven, CT 06520
3:45 PM
STYLES OF LAYER-PARALLEL SHORTENING AND VERTICAL-AXIS ROTATIONS IN THE PRECORDILLERA AND WESTERN SIERRAS PAMPEANAS, ARGENTINA
WEIL, Arlo Brandon, Department of Geology, Bryn Mawr College, Bryn Mawr, PA 19010 and YONKEE, Adolph, Department of Earth and Environmental Sciences, Weber State University, 1415 Edvalson St - DEPT 2507, Ogden, UT 84408
4:00 PM
ROLE OF EARLY CENOZOIC FLAT SLAB SUBDUCTION OF THE NAZCA PLATE IN NORTHERN CENTRAL ANDEAN PLATEAU EVOLUTION
KAR, Nandini, Earth and Environmental Sciences, University of Rochester, 227 Hutchison Hall, Rochester, NY 14627, CARLOTTO, Victor Santiago, Instituto Geológico, Minero y Metalúrgico INGEMMET, Av. Canadá, 1470 San Borja, 1200 E. California Blvd, Lima, 41, Peru, GARZIONE, Carmala N., Department of Earth and Environmental Sciences, University of Rochester, Rochester, NY 14627 and SMITH, Sarah, 504 Ward Street, Newton, MA 02459
4:15 PM
SUBDUCTED SLAB DYNAMICS: UNDERSTANDING THE CAUSES OF SLAB STAGNATION
KING, Scott D.1, FROST, Daniel J.2 and RUBIE, David C.2, (1)Department of Geosciences, Virginia Tech, Blacksburg, VA 24060, (2)Bayerisches Geoinstitut, Universität Bayreuth, Beyreuth, D-95440, Germany
4:30 PM
PLUME DRIVEN SLAB-FLATTENING AND DEFORMATION OF THE OVER-RIDING PLATE
MORESI, Louis1, BETTS, Peter2, MILLER, Meghan S.3 and WILLIS, David2, (1)School of Earth Sciences, University of Melbourne, School of Earth Sciences, Melbourne University, Melbourne, 3010, Australia, (2)School of Earth, Atmosphere and Environment, Monash University, Clayton, 3800, Australia, (3)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089
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