Geological Society of America

8:30 AM

NI-CO SYSTEMATICS OF HIGH-NI OLIVINES IN THE CENTRAL MEXICAN VOLCANIC BELT: CONSTRAINTS FOR PYROXENITE FORMATION IN THE MANTLE WEDGE

Susanne Straub, Lamont Doherty Earth Obs Geochemistry, Palisades, NY and Arturo Gómez-Tuena, Universidad Nacional Autónoma de México, Juriquilla, Querétaro, N/A and Georg F. Zellmer, Academia Sinica, Taipei, N/A

201617 (Theme Sessions)

8:50 AM

MAGMATIC EVOLUTION IN THE APAN-TLÁLOC REGION, EASTERN SECTOR OF THE TRANS-MEXICAN VOLCANIC BELT: SR, ND AND PB ISOTOPIC AND GEOCHEMICAL EVIDENCES

Raymundo G. Martínez-Serrano, Universidad Nacional Autónoma de México, México D.F, N/A and Gloria P. García-Tovar, Universidad Nacional Autónoma de México, México D.F, N/A and Elizabeth Y. Núñez-Castillo, Universidad Nacional Autónoma de México, México D.F, N/A and Juan Carlos Correa-Tello, Universidad Nacional Autónoma de México, México D.F, N/A and Gabriela Solís-Pichardo, Universidad Nacional Autónoma de México, Mexico City, N/A

201643 (Theme Sessions)

9:10 AM

ANDESITIC VOLCANISM IN WESTERN MEXICO BY MELTING OF AMPHIBOLITIC MANTLE WEDGE PLUMES

Arturo Gómez-Tuena, Universidad Nacional Autónoma de México, Juriquilla and Alma Vázquez-Duarte, Universidad Nacional Autónoma de México, Juriquilla, N/A and Beatriz Díaz-Bravo, Universidad Nacional Autónoma de México, Juriquilla, N/A and Ofelia Pérez-Arvizu, Universidad Nacional Autónoma de México, Juriquilla, N/A and Laura Mori, Universidad Nacional Autónoma de México, Mexico, N/A

201626 (Theme Sessions)

9:30 AM

IDENTIFYING SUBDUCTION COMPONENTS IN THE TRANS MEXICAN VOLCANIC BELT: A COMPLEX MAGMATIC ARC IN A COMPLEX SUBDUCTION ZONE REGIME

Peter Schaaf, Universidad Nacional Autónoma de México, México, D.F, N/A

201709 (Theme Sessions)

9:50 AM

GEOCHEMICAL RECYCLING AND MAGMA GENERATION IN THE EASTERN TRANS-MEXICAN VOLCANIC BELT: THE CASE STUDY OF THE SERDÁN-ORIENTAL BASIN

Laura Mori, Universidad Nacional Autónoma de México, Mexico, N/A and Samuele Agostini, Consiglio Nazionale delle Ricerche (CNR), Pisa and Mario Ramos-Arias, Instituto de Geología, UNAM, Mexico, N/A and Arturo Gómez-Tuena, Universidad Nacional Autónoma de México, Juriquilla

201725 (Theme Sessions)

10:10 AM

PETROLOGIC FEATURES AND TECTONIC CONTEXT OF DISCRETE PLUTONS IN THE SOUTHWESTERN MARGIN OF THE PENINSULAR RANGES BATHOLITH, MEXICO

Luis Alberto Delgado-Argote, CICESE, Ensenada, Baja California and Porfirio Avilez-Serrano, CICESE, Ensenada, B.C, N/A and Xochitl G. Torres-Carrillo, CICESE, Ensenada, B.C and Tomás Peña-Alonso, CICESE, Ensenada, B.C, N/A and Bodo Weber, CICESE, Ensenada, B.C, BJ

201583 (Theme Sessions)

10:50 AM

KEYNOTE: THE ROLE OF SUBDUCTION EROSION IN PRODUCING TEMPORAL AND SPATIAL VARIATIONS IN ANDEAN MAGMA CHEMISTRY

Charles R. Stern, University of Colorado Boulder, Boulder, CO

201137 (Theme Sessions)

11:20 AM

LITHOSPHERIC RAINDROPS BENEATH THE PERUVIAN ALTIPLANO: EVIDENCE FROM BACK ARC POTASSIC MAFIC VOLCANIC ROCKS

Alan D. Chapman, University of Arizona, Tucson, AZ and Mihai N. Ducea, University of Arizona, Tucson, AZ

201871 (Theme Sessions)

11:40 AM

MANTLE LITHOSPHERE AS SINK AND SOURCE OF CONTINENTAL ARC AND POST-ARC MAGMATISM

G. Lang Farmer, Univ. of Colorado, Boulder, CO and Allen F. Glazner, University of North Carolina, Chapel Hill, NC and Winifred T. Kortemeier, Western Nevada College, Carson City, NV and Richard A. Schweickert, University of Nevada, Reno, Reno, NV and Jessica Moore, West Virginia Geological SurveyOil and Gas Program, Morgantown, WV

201305 (Theme Sessions)

12:00 PM

UNDERSTANDING THE MOUNT ST. HELENS MAGMATIC SYSTEM USING ZIRCON SURFACE GEOCHRONOLOGY AND GEOCHEMISTRY, 3D X-RAY TOMOGRAPHY, AND GLASS COMPOSITIONS

Lily L. Claiborne, Vanderbilt University, Nashville, TN and Joseph L. Wooden, Stanford University, Stanford, CA and Calvin F. Miller, Vanderbilt University, Nashville, TN and Guilherme A.R. Gualda, Vanderbilt University, Nashville, TN and Michael A. Clynne, USGS, Menlo Park, CA and Daniel M. Flanagan, Vanderbilt University, Nashville, TN

201863 (Theme Sessions)

12:20 PM

MAGMA MIXING AND GARNET FORMATION IN THE MIDDLE CRUST AS AN ANALOG FOR DEEP-CRUSTAL MAGMA MIXING IN CONTINENTAL ARCS

Calvin G. Barnes, Texas Tech University, Lubbock, TX and Carol Frost, University of Wyoming, Laramie, WY and Oystein Nordgulen, Norwegian Geol Survey, Trondheim, N/A and Tore Prestvik, Dept. of Geology and Mineral Resources Engineering, Trondheim, N/A

201678 (Theme Sessions)

35 Mechanisms of Arc Magma Generation along the Cordillera

Presentations