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GSA Annual Meeting in Seattle, Washington, USA - 2017

Session No. 291
Tuesday, 24 October 2017: 9:00 AM-6:30 PM
Halls 4EF (Washington State Convention Center)

T218. Understanding the Interplay of Structural, Metamorphic, and Magmatic Processes in the Evolution of Convergent Margins: Lessons from the Proterozoic to Present-Day South American Andean Margin (Posters)

GSA Structural Geology and Tectonics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA International/International Interdisciplinary Interest Group
Authors will be present from 2 to 4 PM and 4:30 to 6:30 PM.
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PRELIMINARY RESULTS ON MAGNETIC PROPERTIES OF THE GIRON GROUP COLOMBIA. IMPLICATIONS IN STRATIGRAPHY AND TECTONICS IN THE NW MARGIN OF SOUTH AMERICA
JIMÉNEZ, Giovanny1, GARCÍA, Helbert2, CARDONA, Agustin3 and GARCÍA, Lorena1, (1)Universidad Industrial de Santander UIS, Geología, Bucaramanga, Colombia, (2)Geología, Servicio Geológico Colombiano, Bogotá, 100100, Colombia, (3)Geología, Universidad Nacional de Colombia, Medellín, 011000, Colombia; Corporación Geológica ARES, Bogotá, 01011, Colombia, gjimenez@uis.edu.co
291-2
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REGIONAL PATTERNS TO LOCAL VARIATIONS IN PALEO-STRESS/STRAINS AND VERTICAL-AXIS ROTATIONS ACROSS PART OF THE ARGENTINIAN ANDES: DECIPHERING CONTRIBUTIONS FROM PLATE-MARGIN PROCESSES TO CRUSTAL ARCHITECTURE
WEIL, Arlo Brandon1, YONKEE, Adolph2 and WHITTY, Helen1, (1)Department of Geology, Bryn Mawr College, Bryn Mawr, PA 19010, (2)Department of Geosciences, Weber State University, 2507 University Circle, Ogden, UT 84408, hwhitty@brynmawr.edu
291-3
481
NEW CONSTRAINTS ON THE GEOMETRY, KINEMATICS, AND TIMING OF DEFORMATION ALONG THE SOUTHERN SEGMENT OF THE PAPOSO FAULT ZONE, ATACAMA FAULT SYSTEM, NORTHERN CHILE
RUTHVEN, Rachel C.1, SINGLETON, John S.1, SEYMOUR, Nikki M.2, MAGLOUGHLIN, Jerry F.1, GOMILA, Rodrigo3, STOCKLI, Daniel F.4 and ARANCIBIA, Gloria3, (1)Department of Geosciences, Colorado State University, 1482 Campus Delivery, Fort Collins, CO 80523, (2)Geosciences, Colorado State University, 1482 Campus Delivery, Fort Collins, CO 80523, (3)Departamento de Ingeniería Estructural y Geotécnica, Pontificia Universidad Católica de Chile, Santiago, 00000, Chile, (4)Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, 2305 Speedway, Stop C1160, Austin, TX 78712, rachruthven@gmail.com
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MAGNITUDE AND TIMING OF EARLY CRETACEOUS SLIP ALONG THE ATACAMA FAULT SYSTEM, NORTHERN CHILE
SEYMOUR, Nikki M.1, SINGLETON, John S.2, GOMILA, Rodrigo3, HEUSER, Gert3, STRICKLAND, Evan D.2, RUTHVEN, Rachel C.2, STOCKLI, Daniel F.4 and ARANCIBIA, Gloria3, (1)Geosciences, Colorado State University, 1482 Campus Delivery, Fort Collins, CO 80523, (2)Department of Geosciences, Colorado State University, 1482 Campus Delivery, Fort Collins, CO 80523, (3)Departamento de Ingeniería Estructural y Geotécnica, Pontificia Universidad Católica de Chile, Santiago, 00000, Chile, (4)Department of Geological Sciences, University of Texas at Austin, Jackson School of Geosciences 1 University Station C9000, Austin, TX 78712, nikki.seymour@colostate.edu
291-5
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NEOPROTEROZOIC-PALEOZOIC TECTONICS AND PALEOGEOGRAPHY OF THE WEST-CENTRAL SOUTH AMERICA CONVERGENT MARGIN FROM DETRITAL ZIRCON GEOCHRONOLOGY
CALLE, Amanda Z.1, HORTON, Brian K.1, GARCÍA-DUARTE, Raúl2 and FLAIG, Peter P.3, (1)Institute for Geophysics and Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, (2)Instituto de Investigaciones Geológicas y del Medio Ambiente, Universidad Mayor de San Andrés, La Paz, Bolivia (Plurinational State of), (3)Bureau of Economic Geology, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78758, azcallep@utexas.edu
291-6
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DETRITIAL ZIRCON CHARACTERIZATION OF METASEDIMENTARY UNITS OF SIERRA DE MAZ, WESTERN SIERRAS PAMPEANAS, ARGENTINA
MCCLELLAND, William C.1, MULCAHY, Sean R.2, ROESKE, Sarah M.3, WEBBER, Patricia1, THOLT, Andrew2 and HOULIHAN, Emily3, (1)Department of Earth and Environmental Sciences, University of Iowa, 115 Trowbridge Hall, Iowa City, IA 52242, (2)Geology Department, Western Washington University, Bellingham, WA 98225, (3)Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA 95616, bill-mcclelland@uiowa.edu
291-7
485
METAMORPHIC EVOLUTION OF THE SIERRA DE MAZ: IMPLICATIONS FOR THE TIMING OF TERRANE ACCRETION ON THE WESTERN MARGIN OF GONDWANA
THOLT, Andrew1, WEBBER, Patricia2, HOULIHAN, Emily3, MULCAHY, Sean R.4, MCCLELLAND, William C.2, ROESKE, Sarah M.3, VERVOORT, Jeff D.5 and WILFORD, Diane6, (1)Geology, Western Washington University, 516 High Street, Bellingham, WA 98225, (2)Department of Earth and Environmental Sciences, University of Iowa, 115 Trowbridge Hall, Iowa City, IA 52242, (3)Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA 95616, (4)Geology Department, Western Washington University, Bellingham, WA 98225, (5)School of the Environment, Washington State University, Pullman, WA 99164, (6)School of the Environment, Washington State University, P.O. Box 642812, Pullman, WA 99164, andytholt@gmail.com
291-8
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40AR/39AR GEOCHRONOLOGY AND KINEMATIC ANALYSIS OF SIERRA DE MAZ: IMPLICATIONS FOR TIMING AND ORIENTATION OF DEFORMATION ON THE PALEOZOIC MARGIN OF WESTERN GONDWANA
HOULIHAN, Emily1, THOLT, Andrew2, WEBBER, Patricia3, ROESKE, Sarah M.1, MULCAHY, Sean R.2, MCCLELLAND, William C.3 and RUTTE, Daniel4, (1)Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA 95616, (2)Geology Department, Western Washington University, Bellingham, WA 98225, (3)Department of Earth and Environmental Sciences, University of Iowa, 115 Trowbridge Hall, Iowa City, IA 52242, (4)University of California, Berkeley, Earth and Planetary Sciences, McCone Hall, Haviland Path, Berkeley, CA 94720; Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, eehoulihan@ucdavis.edu
291-9
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STRAIN (DE)-LOCALIZATION IN THE ~10KM WIDE CUESTA DE RANDOLFO MYLONITE ZONE, FAMATINIAN ARC
CAWOOD, Tarryn Kim1, PATERSON, Scott1, RATSCHBACHER, Barbara C.1, LUSK, Alexander Dmitri Johnston1, LARROVERE, Mariano A.2, ALASINO, Pablo3, RICK, Christopher Benton1 and MEMETI, Valbone4, (1)Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, (2)CRILAR-CONICET/INGeReN-UNLaR, Entre Ríos y Mendoza s/n, Anillaco, La Rioja, 5301, Argentina, (3)CRILAR-CONICET/INGeReN-UNLaR, Entre Rios Y Mendoza S/n, Anillaco, 5301, Argentina, (4)Virginia Museum of Natural History, Martinsville, cawood@usc.edu
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DEFORMATION OF THE UPPERMOST FAMATINIAN OROGEN: MAPPING AND STRUCTURAL ANALYSIS FROM THE SIERRA DE NARVáEZ AND SIERRA DE LAS PLANCHADAS, NW ARGENTINA
LUSK, Alexander Dmitri Johnston1, PATERSON, Scott R.1, RATSCHBACHER, Barbara C.1, LARROVERE, Mariano2, ALASINO, Pablo3, MEMETI, Valbone4, CAWOOD, Tarryn Kim1 and HERNANDEZ, Robert1, (1)Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, (2)CRILAR-CONICET/INGeReN-UNLaR, Entre Ríos y Mendoza s/n, Anillaco, La Rioja, 5301, (3)CRILAR-CONICET/INGeReN-UNLaR, Entre Rios Y Mendoza S/n, Anillaco, 5301, Argentina, (4)Virginia Museum of Natural History, Martinsville, alexanderdlusk@gmail.com
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GEOCHEMICAL ARCHITECTURE AND EVOLUTION OF THE FAMATINIAN MAGMATIC ARC CRUSTAL SECTION IN THE NW ARGENTINA
ALASINO, Pablo H.1, MEMETI, Vali2, RATSCHBACHER, Barbara C.3, LARROVERE, Mariano1, PATERSON, Scott R.3, LUSK, Alexander3 and CAWOOD, Tarryn3, (1)CRILAR-CONICET/INGeReN-UNLaR, Entre Ríos y Mendoza s/n, Anillaco, La Rioja, 5301, (2)Department of Geological Sciences, California State University Fullerton, 800 N State College Blvd, Fullerton, CA 92831, (3)Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, palasino@crilar-conicet.gob.ar
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IGNEOUS ARCHITECTURE AT THE TOP OF THE FAMATINIAN ARC, NW ARGENTINA
MEMETI, Vali1, PATERSON, Scott R.2, RATSCHBACHER, Barbara C.2, ALASINO, Pablo H.3, LARROVERE, Mariano A.3, ARDILL, Katie E.2, CAWOOD, Tarryn Kim2, LUSK, Alexander Dmitri Johnston2 and INSIXIENGMAY, Leslie2, (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 Parkway, Los Angeles, CA 90089-0740, (3)CRILAR-CONICET/INGeReN-UNLaR, Entre Ríos y Mendoza s/n, Anillaco, La Rioja, 5301, vmemeti@fullerton.edu
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