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Cordilleran Section - 99th Annual (April 1–3, 2003)

Session No. 5
Tuesday, 1 April 2003: 8:20 AM-12:05 PM

S1. Tectonics, Structure, and Geophysics of the Gulf of California–Salton Trough Region I

MARGINS initiative

 

Arturo Martin and Gary J. Axen, Conveners
Paper #
Start Time
 
8:20 AM
Introductory Remarks
1
8:30 AM
SEISMIC STUDY OF GULF OF CALIFORNIA RIFTING AND MAGMATISM
LIZARRALDE, Daniel1, AXEN, Gary J.2, FLETCHER, John M.3, FERNÁNDEZ, Antonio González3, HARDING, Allistair J.4, HOLBROOK, W. Steven5, KENT, Graham M.4 and UMHOEFER, Paul J.6, (1)School of Earth and Atmospheric Sciences, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332, (2)Dept. Earth & Space Sciences, Univ. of California - Los Angeles, Los Angeles, CA 90095-1567, (3)Departamento de Geología, CICESE, Ensenada, 22860, Mexico, (4)IGPP, Scripps Institute of Oceanography, IGPP Rm 2102, La Jolla, GA 92037, (5)Dept. of Geology and Geophysics, Univ of Wyoming, Laramie, WY 82071-3006, (6)Department of Geology, Northern Arizona Univ, Box 4099, Flagstaff, AZ 86011, danl@eas.gatech.edu, danl@eas.gatech.edu
2
8:50 AM
CRUSTAL STRUCTURE OF THE PENINSULAR RANGES BATHOLITH FROM AEROMAGNETIC DATA: IMPLICATIONS FOR GULF OF CALIFORNIA RIFTING
LANGENHEIM, Victoria and JACHENS, Robert, U.S. Geol Survey, 345 Middlefield Road, Menlo Park, CA 94025, zulanger@usgs.gov, zulanger@usgs.gov
3
9:10 AM
CONSTRAINTS ON TIMING AND MAGNITUDE OF CONTINENTAL RIFTING IN THE GULF EXTENSIONAL PROVINCE, BAJA CALIFORNIA PENINSULA, MEXICO, FROM LOW TEMPERATURE THERMOCHRONOLOGY
KOHN, B.P.1, GLEADOW, A.J.W.1, FLETCHER, J.M.2, RAZA, A.1, BROWN, R.W.1 and FOSTER, D.A.3, (1)School of Earth Sciences, Univ of Melbourne, Melbourne, 3010, Australia, (2)Departmento de Geologia, CICESE, Ensenada, Mexico, (3)Department of Geological Sciences, Univ of Florida, Gainesville, FL 32611-2120, gleadow@unimelb.edu.au, gleadow@unimelb.edu.au
4
9:30 AM
MODERATE CLOCKWISE ROTATION OF CARMEN ISLAND DURING OPENING OF THE GULF OF CALIFORNIA
MACY, Jamie P., Geology, Northern Arizona University, Box 4099, Flagstaff, AZ 86011, UMHOEFER, Paul J. and ORT, Michael H., jpm22@dana.ucc.nau.edu, jpm22@dana.ucc.nau.edu
5
9:50 AM
TECTONIC RESTORATION OF THE BAJA CALIFORNIA MICROPLATE AND THE GEODYNAMIC EVOLUTION OF THE PACIFIC-NORTH AMERICAN PLATE MARGIN
FLETCHER, John M., Geologia, CICESE, PO Box 434843, San Diego, CA 92143, jfletche@cicese.mx, jfletche@cicese.mx
 
10:10 AM
Discussion
 
10:25 AM
Break
6
10:40 AM
APPLICATION OF MORPHOLOGIC DATING OF COMPOSITE FAULT SCARPS AT THE EL CARRIZAL FAULT, BAJA CALIFORNIA SUR: TOWARDS AN ESTIMATION OF POTENTIAL SEISMIC HAZARDS
JORAJURIA-LARA, Rubén and MARTINEZ-GUTIERREZ, Genaro, Departamento de Geología Marina, Universidad Autónoma de Baja California Sur, Carretera al Sur km. 5.5, La Paz, 23080, Mexico, rjorajuria@yahoo.com, rjorajuria@yahoo.com
7
11:00 AM
LATE OLIGOCENE(?)-EARLY MIOCENE EXTENSION IN THE BAHÍA DE GUADALUPE REGION, NORTH-CENTRAL BAJA CALIFORNIA
AXEN, Gary J., Dept. Earth & Space Sciences, Univ. of California - Los Angeles, Los Angeles, CA 90095-1567, gaxen@ess.ucla.edu, gaxen@ess.ucla.edu
8
11:20 AM
LATE CENOZOIC EXTENSIONAL TECTONICS OF THE CAÑON EL PARRAL BASIN, SIERRA SAN FELIPE, NE BAJA CALIFORNIA
GIVLER, Robert W., Earth and Space Sciences, UCLA, 595 Charles Young Drive East 3806 Geology Building Box 951567, Los Angeles, CA 90095-1567 and AXEN, Gary J., Dept. Earth & Space Sciences, Univ. of California - Los Angeles, Los Angeles, CA 90095, rgivler@ess.ucla.edu, rgivler@ess.ucla.edu
9
11:40 AM
STRUCTURE AND HANGING WALL STRATIGRAPHY OF THE LAS CUEVITAS DETACHMENT, CENTRAL SIERRA SAN FELIPE, BAJA CALIFORNIA
BLACK, Natanya and AXEN, Gary, Earth and Space Sciences, Univ of California Los Angeles, 594 E Charles Young Drive, Los Angeles, CA 90095, nblack@ess.ucla.edu, nblack@ess.ucla.edu
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