Session No. 27 Wednesday, April 2, 2003

2:15 PM-4:50 PM, Hotel NH Krystal: Jalisco C
S4. Mexican Terranes, 20 Years After: In Honor of Peter Coney
Fernando Ortega-Gutíerrez, Presiding
 Paper #Start Time
27-12:15 PM MEXICAN TERRANES: 20 YEARS ON: KEPPIE, John Duncan, Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Mexico D.F, 04510, Mexico, duncan@servidor.unam.mx and ORTEGA-GUTIÉRREZ, Fernando, Geología Regional, UNAM, Instituto de Geología, Ciudad Universitaria, Delegación Coyoacán, México, 04510, Mexico
27-22:35 PM U-PB ZIRCON DATING OF METAMORPHIC ROCKS FROM THE CHIAPAS MASSIF: EVIDENCE FOR GRENVILLE CRUST AND A LATE PERMIAN OROGENY IN THE SOUTHERN MAYA TERRANE: WEBER, Bodo, Geology Department, Earth Sciences Division, CICESE, km. 107 carr. Tijuana-Ensenada, Ensenada, B.C, 22860, Mexico, bweber@cicese.mx and CAMERON, Kenneth L., Earth Sciences, Univ of California, 1156 High Street, Santa Cruz, CA 95064
27-32:55 PM TERRANE CONFIGURATION OF CENTRAL-WESTERN MEXICO AND THE MESOZOIC EVOLUTION OF THE CONTINENTAL MARGIN: CENTENO-GARCIA, Elena, Instituto de Geologia, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Delegacion Coyoacan, Mexico 04510 Mexico, centeno@servidor.unam.mx.
 3:15 PM Break
27-43:30 PM THE "GUERRERO SUPERTERRANE": A SINGLE TERRANE OR MULTIPLE ARC SEGMENTS?: WETMORE, Paul H., Earth Sciences, Univ of Southern California, 3651 University Ave, SCI 117, Los Angeles, CA 90089-0740, wetmore@earth.usc.edu and PATERSON, Scott R., Department of Earth Sciences, Univ of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740
27-53:50 PM THE REAL GUERRERO TERRANE, SOUTHERN MEXICO: NEW INSIGHTS FROM RECENT STUDIES: ELÍAS-HERRERA, Mariano, ORTEGA-GUTIÉRREZ, Fernando, SÁNCHEZ-ZAVALA, José Luis, and MACÍAS-ROMO, Consuelo, Geología Regional, UNAM, Instituto de Geología, Ciudad Universitaria, Delegación Coyoacán, México, 04510, Mexico, elias@servidor.unam.mx
27-64:10 PM WHOLESALE MELTING OF THE SOUTHERN MIXTECO TERRANE AND ORIGIN OF THE XOLAPA COMPLEX: ORTEGA-GUTIÉRREZ, Fernando, Geologia Regional, Instituto de Geologia, UNAM, Ciudad Universitaria, Delegacion Coyoacan, Mexico, 04510, fortega@servidor.unam.mx and ELÍAS-HERRERA, Mariano
27-74:30 PM ZIRCON U-PB GEOCHRONOLOGY CONSTRAINTS ON THE MAGMATIC AND TECTONIC EVOLUTION OF THE XOLAPA COMPLEX, SOUTHERN MEXICO: DUCEA, Mihai, SHOEMAKER, Sarah, GEHRELS, George, VERVOORT, Jeffrey, and RUIZ, Joaquin, Geosciences, Univ of Arizona, Tucson, AZ 85721, sarahs@geo.arizona.edu

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