Session No. 32 Thursday, April 3, 2003

8:30 AM-12:05 PM, Hotel NH Krystal: Jalisco A
T1. Cretaceous and Cenozoic Tectonic Evolution of Baja California
Harald B÷hnel, Luis Delgado and Dave Kimbrough, Presiding
 Paper #Start Time
32-18:30 AM DETRITAL MODES OF MAGDALENA FAN SANDSTONE SUPPORT NORTHWARD DISPLACEMENT OF THE FAN FROM A SEDIMENT SOURCE AT THE MOUTH OF THE PROTO-GULF OF CALIFORNIA: MARSAGLIA, Kathleen M., Geological Sciences, California State Univ Northridge, 18111 Nordhoff St, Northridge, CA 91330-8266, kathie.marsaglia@csun.edu.
32-28:50 AM PROVENANCE INVESTIGATION OF THE MIDDLE MIOCENE MAGDELENA FAN OF BAJA CALIFORNIA SUR, MEXICO: KIMBROUGH, David L., San Diego State Univ, San Diego, CA 92182, dkimbrou@geology.sdsu.edu, GROVE, Marty, Dept. of Earth and Space Sciences, UCLA, Los Angeles, CA 90095-1567, and FLETCHER, John, Centro de Investigacion Cientifica y de Educacion Superior de Ensenada, Mexico
32-39:10 AM EASTWARD YOUNGING OF AGES ACROSS THE PENINSULAR RANGES BATHOLITH AND PLUTONS : GEOCHRONOLOGICAL CONSTRAINTS FOR THE TECTONIC HISTORY OF THE PENINSULAR RANGES BATHOLITH AND TECTONIC IMPLICATIONS FOR WESTERN M╔XICO: ORTEGA-RIVERA, Amabel, Centro de Geociencias, UNAM, Campus Juriquilla - UNAM, km15, carretera SLP-Qro, Queretaro 76230 Mexico, amabel@geociencias.unam.mx.
32-49:30 AM LATE CRETACEOUS COOLING OF THE EAST-CENTRAL PENINSULAR RANGES BATHOLITH (33░N): RELATIONSHIP TO PLUTON EMPLACEMENT, SHALLOW SUBDUCTION, AND FOREARC SEDIMENTATION: LOVERA, Oscar M. and GROVE, Marty, Department of Earth and Space Sciences and IGPP, UCLA, Los Angeles, CA 90095-1567, lovera@argon.ess.ucla.edu
32-59:50 AM HIGH-TEMPERATURE THERMOCHRONOLOGY OF LOS CABOS BLOCK BASEMENT ROCKS: GROVE, Marty, Dept. of Earth and Space Sciences, UCLA, Los Angeles, CA 90095-1567, marty@argon.ess.ucla.edu, KIMBROUGH, David L., Department of Geological Sciences, San Diego State Univ, San Diego, CA 92182, and FLETCHER, John, Centro de Investigacion Cientifica y de Educacion Superior de Ensenada, Mexico
 10:10 AM Break
32-610:25 AM UNRAVELING DISPLACEMENT FIELDS IN ARCS: AN EXAMPLE FROM THE PENINSULAR RANGES BATHOLITH: ALSLEBEN, Helge and PATERSON, Scott R., Department of Earth Sciences, Univ of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, alsleben@earth.usc.edu
32-710:45 AM STRUCTURAL SURVEY IN PLUTONS FROM THE PACIFIC COAST TO THE SIERRA SAN PEDRO MARTIR, CENTRAL BAJA CALIFORNIA: DELGADO-ARGOTE, Luis A.1, BOEHNEL, Harald2, MOLINA GARZA, Roberto2, and ORTEGA-RIVERA, Amabel2, (1) Division de Ciencias de la Tierra, CICESE, Km 107 Carretera Tijuana-Ensenada, Ensenada, Baja California, 22860, Mexico, ldelgado@cicese.mx, (2) Centro de Geociencias, UNAM, -Campus Juriquilla, Queretaro, Queretaro, 76230, Mexico
32-811:05 AM A PALEOMAGNETIC TRANSECT OF THE PENINSULAR RANGES BATHOLITH NEAR THE 31ST PARALLEL, PART I: BÍHNEL, Harald1, MOLINA GARZA, Roberto2, CONTRERAS FLORES, Ruben1, ORTEGA-RIVERA, Amabel1, and DELGADO ARGOTE, Luis3, (1) Centro de Geociencias, UNAM, Campus Juriquilla - UNAM, Queretaro, 76230, Mexico, hboehnel@geociencias.unam.mx, (2) Unidad de Ciencias de la Tierra, Campus Juriquilla UNAM, Carretera San Luis PotosÝ km 13, Juriquilla, Queretaro, 76230, Mexico, (3) Ciencias de la Tierra, CICESE, Km 107 Carr. Tijuana-Ensenada, Ensenada, 22860
32-911:25 AM A PALEOMAGNETIC TRANSECT OF THE PENINSULAR RANGES BATHOLITH NEAR THE 31ST PARALLEL, PART II: MOLINA GARZA, Roberto1, BÍHNEL, Harald, CH┴VEZ CABELLO, Gabriel2, ORTEGA RIVERA, Amabel2, and DELGADO ARGOTE, Luis3, (1) Unidad de Ciencias de la Tierra, Campus Juriquilla UNAM, Carretera San Luis PotosÝ km 13, Juriquilla, Queretaro, 76230, Mexico, rmolina@unicit.unam.mx, (2) Centro de Geociencias, UNAM, Campus Juriquilla - UNAM, Queretaro, 76230, Mexico, (3) Ciencias de la Tierra, CICESE, Km 107 Carr. Tijuana-Ensenada, Ensenada, 22860

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