GSA Annual Meeting in Seattle, Washington, USA - 2017

Session No. 275
Tuesday, 24 October 2017: 9:00 AM-6:30 PM
Halls 4EF (Washington State Convention Center)

T162. The Dance of Arcs: Causes of Arc Migrations, Flare-Ups, and Magmatic Focusing (Posters)

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Structural Geology and Tectonics Division
Authors will be present from 9:30 to 11:30 AM and 4:30 to 6:30 PM.
328
EVOLUTION OF SLAB AND WEDGE THERMAL STRUCTURE IN TIME-DEPENDENT DYNAMIC MODELS OF SUBDUCTION
BILLEN, Magali I., Department of Earth and Planetary Sciences, University of California, One Shields Avenue, Davis, CA 95616, mibillen@ucdavis.edu
329
PETROGENESIS OF LATE-STAGE, HIGH-K MAGMAS WITHIN A CONTINENTAL ARC: AN EXAMPLE FROM THE ROSS OROGEN, ANTARCTICA
BROWNE, Nicoletta C., COTTLE, John M. and NELSON, Demian, Dept of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106-9630, nbrowne@umail.ucsb.edu
330
TEMPORAL AND SPATIAL VARIATIONS IN MAGMATISM AND TRANSPRESSIONAL DEFORMATION IN THE MIDDLE TO LOWER-CRUST OF A CRETACEOUS ARC, MEDIAN BATHOLITH, FIORDLAND, NEW ZEALAND
BURITICA, Luisa F.1, SCHWARTZ, Joshua J.1, KLEPEIS, Keith2, MIRANDA, Elena A.1, RINGWOOD, Mary1, TULLOCH, Andrew J.3 and COBLE, Matthew A.4, (1)Department of Geological Sciences, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330, (2)Department of Geology, University of Vermont, Burlington, VT 05405, (3)Institute of Geol & Nuclear Sciences, 764 Cumberland St, Dunedin, New Zealand, (4)Department of Geological Sciences, Stanford University, Stanford, CA 94305, lfburiticaa@gmail.com
331
PARTITIONING OF STRAIN IN MID- AND LOWER-CRUSTAL LEVELS DURING AN ARC FLARE-UP, MEDIAN BATHOLITH, FIORDLAND, NEW ZEALAND
BLATCHFORD, Hannah J., Department of Earth Sciences, University of Minnesota, John T. Tate Hall, 116 Church Street SE, Suite 150, Minneapolis, MN 55455, KLEPEIS, Keith A., Department of Geology, University of Vermont, 180 Colchester Ave, Burlington, VT 05405, SCHWARTZ, Joshua J., Department of Geological Sciences, California State University Northridge, 18111 Nordhoff St., Northridge, CA 91330, TURNBULL, Rose, GNS Science, Dunedin Research Centre, Private Bag 1930, Dunedin, 9054, New Zealand, JONGENS, Richard, Anatoki Geoscience Ltd, 64 Skibo Street, Dunedin, 9012, New Zealand and COBLE, Matthew A., Department of Geological Sciences, Stanford University, Stanford, CA 94305, blatc005@umn.edu
332
EPISODIC CONTINENTAL ARC MAGMATISM IN THE PERUVIAN ANDES FROM U-PB ZIRCON GEOCHRONOLOGY
POMPE, Lance R.1, CLAUSEN, Benjamin L.2, PATERSON, Scott R.3, NICK, Kevin E.4, MARTÍNEZ, Ana M.3 and PORRAS, Orlando P.5, (1)Earth and Biological Sciences, Loma Linda University, 2258 Baccarat Ct, Colton, CA 92324, (2)Department of Earth and Biological Sciences, Loma Linda University, Griggs Hall, Room 101, Loma Linda, CA 92350; Geoscience Research Institute, Department of Earth and Biological Sciences, Loma Linda University, Loma Linda, CA 92350, (3)Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, (4)Department of Earth and Biological Sciences, Loma Linda University, Griggs Hall, Room 101, Loma Linda, CA 92350, (5)Faculty of Engineering and Architecture, Universidad Peruana Union, Ñaña, Lima, Km19, Peru, lpompe@llu.edu
333
CONTRASTING TECTONIC BEHAVIORS OF JURASSIC AND NEOGENE CONTINENTAL ARCS IN THE COLOMBIAN ANDES
CARDONA, Agustin1, BUSTAMANTE, Camilo2, ECHEVERRI, Sebastian3, HINCAPIE, Santiago4, JARAMILLO, Juan Sebastián4, LEON, Santiago5, MONSALVE, Gaspar6 and VALENCIA, Victor7, (1)Procesos y Energía, Universidad Nacional de Colombia, Medellin, 050036, Colombia; Grupo de Investigación EGEO, Universidad Nacional de Colombia, Medellin, 050036, Colombia, (2)Department of Geoscience, Universidad Eafit, Medellín, 0000, Colombia, (3)Instituto de Geociencias, Universidade de Sao Paulo, Sao Paulo, Brazil, (4)Escuela de Materiales y Minerales, Universidad Nacional de Colombia, Medellón, 050036, Colombia; Grupo de Investigación EGEO, Universidad Nacional de Colombia, Medellin, 050036, Colombia, (5)Grupo de Investigación EGEO, Universidad Nacional de Colombia, Medellin, 050036, Colombia, (6)Geociéncias y Medio Ambiente, Universidad Nacional de Colombia Sede Medellín, Escuela de Geociencias y Medio Ambiente, Medellín, Colombia; Grupo de Investigación EGEO, Universidad Nacional de Colombia, Medellin, 050036, Colombia, (7)School of Earth and Enviromental Sciences, Washington State University, Pullman, WA 99164-2812, agcardonamo@unal.edu.co
334
THE ROLE OF SUBDUCTED SEDIMENT DIAPIRS IN THE FORMATION OF MANTLE-DERIVED ANDESITES FROM THE NORTHERN COLOMBIAN ANDES
ERRÁZURIZ-HENAO, Carlos1, GÓMEZ-TUENA, Arturo2 and DUQUE-TRUJILLO, Jose Fernando1, (1)Geology Department, EAFIT University, Carrera 49 N° 7 Sur-50, Medellín, 050022, Colombia, (2)Centro de Geociencias, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Juriquilla, 76230, Mexico, cerrazur@eafit.edu.co
335
GEOPHYSICAL AND GEOCHEMICAL MODELING OF THE STRUCTURE AND EVOLUTION OF THE EL VALLE VOLCANO, PANAMA
MUNSEY, Keith R. and FARRIS, David W., Earth, Ocean and Atmospheric Science, Florida State University, 909 Antarctic Way, Tallahassee, FL 32306, krm11g@my.fsu.edu
336
A BALANCING ACT OF CRUST CREATION AND DESTRUCTION ALONG THE WESTERN MEXICAN CONVERGENT MARGIN
PAROLARI, Mattia, GÓMEZ-TUENA, Arturo, CAVAZOS-TOVAR, José Guadalupe and HERNÁNDEZ-QUEVEDO, Gabriela, Centro de Geociencias, Universidad Nacional Autónoma de México, Blvd. Juriquilla No. 3001. Querétaro, 76230, México, Queretaro, 76000, Mexico, mattia.prl@gmail.com
337
RECONNAISSANCE GEOCHRONOLOGY AND THERMOCHRONOLOGY OF THE WESTERN MOJAVE BATHOLITH
VAN BUER, Nicholas J., Department of Geological Sciences, California State Polytechnic University, Pomona, 3801 W Temple Ave, Pomona, CA 91768 and SHULAKER, Danielle Ziva, Stanford University, Geological Sciences, 450 Serra Mall Bldg. 320 Rm.118, Stanford, CA 94305-2115, njvanbuer@cpp.edu
338
GEOCHEMICAL ANALYSES OF PLUTONS IN THE EASTERN MOJAVE DESERT, CALIFORNIA
VERMILLION, Karissa B., Geological Sciences, California State Polytechnic University Pomona, 3801 W Temple Avenue, Pomona, CA 91768 and VAN BUER, Nicholas J., Department of Geological Sciences, California State Polytechnic University, Pomona, 3801 W Temple Ave, Pomona, CA 91768, kbvermillion@cpp.edu
339
THE JACK MAIN INTRUSIVE COMPLEX: AN OUT-OF-SEQUENCE MIGRATING PLUTON FORMED DURING LATE CRETACEOUS MAGMATIC FOCUSING, CENTRAL SIERRA NEVADA, CA
SCHELAND, Cullen L.1, MEMETI, Vali1, ARDILL, Katie E.2, PATERSON, Scott R.2 and CHAMBERS, Melissa1, (1)Department of Geological Sciences, California State University Fullerton, 800 N State College Blvd, Fullerton, CA 92831, (2)Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Los Angeles, CA 90089, cscheland@fullerton.edu
340
A REVISED LOADING AND EXHUMATION MODEL FOR THE SWAKANE BIOTITE GNEISS, CASCADES CRYSTALLINE CORE (CCC), WA: IMPLICATIONS FOR MESOZOIC TECTONICS
HARTMAN, Sean M.1, PATERSON, Scott R.2 and RATSCHBACHER, Barbara C.2, (1)Department of Earth Sciences, University of Southern California, 3651 Trousdale parkway, ZHS 118, Los Angeles, CA 90089-0740, (2)Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, smhartma@usc.edu
341
INCORPORATION OF METASEDIMENTARY UNITS INTO THE DEEPEST EXPOSED LEVELS OF THE NORTH CASCADES CONTINENTAL ARC: COMPARISON OF THE SKAGIT AND SWAKANE GNEISSES
SAUER, Kirsten B., Department of Geological Sciences, University of Nevada-Reno, 1664 N. Virginia Street, Reno, NV 89557, GORDON, Stacia M., Department of Geological Sciences, University of Nevada- Reno, 1664 N. Virginia Street, Reno, NV 89557, MILLER, Robert B., Geology, San Jose State University, One Washington Square, San Jose, CA 95192, VERVOORT, Jeffrey, School of the Environment, Washington State University, Webster Physical Science Building 1228, Pullman, WA 99164 and FISHER, Christopher M., School of the Environment, Washington State University, Pullman, WA 99164, kirsten.b.sauer@gmail.com
342
U-PB GEOCHRONOLOGY AND ZIRCON HF AND O ISOTOPE ANALYSIS OF PLUTONS OF THE SOUTHERN COAST MOUNTAINS BATHOLITH, BRITISH COLUMBIA: INSIGHT INTO EPISODIC MAGMATISM IN CONTINENTAL ARCS
HOMAN, Emily C.1, CECIL, M. Robinson1, GEHRELS, George E.2, RUSMORE, Margaret E.3, YOKELSON, Intan N.2, STOWELL, Harold H.4, VALLEY, John W.5 and KITAJIMA, Kouki5, (1)Department of Geological Sciences, California State University, Northridge, 18111 Nordhoff Street, Northridge, CA 91330, (2)Department of Geosciences, University of Arizona, Tucson, AZ 85721, (3)Department of Geology, Occidental College, Los Angeles, CA 90041, (4)Department of Geological Sciences, University of Alabama, BOX 870338, Tuscaloosa, AL 35487, (5)WiscSIMS, Department of Geoscience, University of Wisconsin-Madison, 1215 W. Dayton St, Madison, WI 53705, emchoman@gmail.com
343
GEOCHEMICAL EVIDENCE FOR ADAKITE-LIKE MAGMATISM AT THE OLIGO-MIOCENE INITIATION OF THE WRANGELL ARC, ALASKA
WEBER, Maridee A.1, BRUESEKE, Matthew E.1, BERKELHAMMER, Samuel E.1, BENOWITZ, Jeff A.2, TROP, Jeffrey M.3, DAVIS, Kailyn N.2, LAYER, Paul W.2 and MORTER, Bethany K.1, (1)Department of Geology, Kansas State University, 108 Thompson Hall, Manhattan, KS 66506, (2)Geophysical Institute and Geochronology Laboratory, University of Alaska Fairbanks, Fairbanks, AK 99775, (3)Department of Geology and Environmental Sciences, Bucknell University, 1 Dent Drive, Lewisburg, PA 17837, marideeweber@ksu.edu
344
PETROLOGY AND GEOCHEMISTRY OF ADAK ISLAND PLUTONIC XENOLITHS: IMPLICATIONS FOR CRUSTAL DIFFERENTIATION IN THE ALEUTIAN ISLAND ARC
BARICKMAN, Mattison H.1, BUCHOLZ, Claire E.2, KAY, Suzanne Mahlburg3 and KAY, Robert W.3, (1)Department of Earth and Ocean Sciences, Tufts University, Lane Hall, 2 North Hill Road, Medford, CA 02155; Department of Geological and Planetary Sciences, California Institute of Technology, Mail Code 170-25, 1200 E. California Blvd., Pasadena, CA 91125, (2)Department of Geological and Planetary Sciences, California Institute of Technology, Mail Code 170-25, 1200 E. California Blvd., Pasadena, CA 91125, (3)EAS, Cornell University, Ithaca, NY 14853-1504, matthbarick@gmail.com
See more of: Technical Sessions