102nd Annual Meeting of the Cordilleran Section, GSA, 81st Annual Meeting of the Pacific Section, AAPG, and the Western Regional Meeting of the Alaska Section, SPE (8–10 May 2006)
Session No. 31 Wednesday, 10 May 2006
8:00 AM-11:20 AM, Anchorage Hilton Hotel: Alaska

GSA: Tectonics and Structural Geology—From Ductile to Brittle

Terry Pavlis and John Platt, Presiding
 Paper #Start Time
31-18:00 AM IMPLICATIONS FOR CENOZOIC EXHUMATION OF THE CENTRAL ANDEAN PLATEAU BASED ON THERMOCHRONOLOGY, GEOCHRONOLOGY AND UPPER CRUSTAL STRUCTURE OF THE CORDILLERA REAL, BOLIVIA: GILLIS, Robert J., Department of Earth and Space Sciences, University of California, Los Angeles, 595 Charles Young Drive East, Los Angeles, AL 90095-1567, robert.j.gillis@conocophillips.com, HORTON, Brian K., Department of Earth and Space Sciences, University of California, Los Angeles, 595 Charles Young Drive East, Box 951567, Los Angeles, CA 90095-1567, and GROVE, Marty, Dept. of Earth and Space Sciences, Univ. of California, Los Angeles, CA 90095-1567
31-28:20 AM FOLIATION TRANSPOSITION AND VORTICITY IN A LATE PALEOZOIC OROGEN-PARALLEL SHEAR ZONE IN THE SOUTHERN APPALACHIAN MOUNTAINS: BOBYARCHICK, Andy R., Geography and Earth Sciences, UNC Charlotte, 9201 University City Blvd, Charlotte, NC 28223, arbobyar@email.uncc.edu
31-38:40 AM MAPPING AND KINEMATIC ANALYSIS OF THE SIERRA EL COBRE: A NEW LOCALITY OF METAMORPHIC CORE COMPLEX(?) IN NORTHWEST SONORA, MEXICO: RODRIGUEZ-CASTAÑEDA, Jose Luis1, GARCÍA Y BARRAGÁN, Juan Carlos1, ARELLANO-GONZÁLEZ, Luis Carlos2, GUTIÉRREZ-CORONADO, Manuel Alejandro3, and MEDINA-SALAZAR, Jesús Oswaldo2, (1) Instituto de Geología, UNAM, Aptdo Postal 1039, Hermosillo, 83000, Mexico, jlrod@servidor.unam.mx, (2) Geociencias, Centro de Estudios Superiores del Estado de Sonora, Ley Federal del Trabajo, Hermosillo, 83148, Mexico, (3) Programa de Posgrado en ciencias de la Tierra, Universidad Nacional Autónoma de México, Hermosillo, 83240, Mexico
31-49:00 AM THE SAN ANDREAS TRANSFORM AS A LITHOSPHERIC SHEAR ZONE: PLATT, John, Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740, john.platt@usc.edu
31-59:20 AM EVOLUTION OF A MID-CRUSTAL STRIKE-SLIP SYSTEM DURING PROGRADE METAMORPHISM: THE CHUGACH METAMORPHIC COMPLEX, EASTERN CHUGACH MOUNTAINS, ALASKA: PAVLIS, Terry L.1, DAY, Erik2, and O'DRISCOLL, Leland J.1, (1) Geology and Geophysics, Univ New Orleans, 2000 Lakeshore Dr, New Orleans, LA 70148-0001, tpavlis@uno.edu, (2) Dept. Geology and Geophysics, Univ of New Orleans, New Orleans, LA 70148
31-69:40 AM THE IMPACT OF STRAIN RATE ON FOLDING AND BOUDINAGE UNDER PLANE STRAIN: RESULTS FROM ANALOGUE MODELLING: ENAMA MENGONG, Mathurin and ZULAUF, Gernold, Institut fuer Geowissenschaften - Facheinheit Geologie, Johann Wolfgang Goethe-Universitaet Frankfurt am Main, Senckenberganlage 32-34, Frankfurt am Main, D-60054, Germany, M.Enama-Mengong@em.uni-frankfurt.de
 10:00 AM Break
31-710:20 AM CENOZOIC EVOLUTION OF THE 3-D STRAIN FIELD IN THE RIVER MOUNTAINS OF SOUTHERN NEVADA: IMPLICATIONS FOR THE IMPORTANCE OF ORTHORHOMBIC FAULTS IN RAPIDLY EXTENDING TERRAINS: RITTASE, William Michael and TAYLOR, Wanda, Department of Geoscience, University of Nevada, Las Vegas, 4505 Maryland Parkway, 89154-4010, Las Vegas, NV 89154-4010, rittasew@unlv.nevada.edu
31-810:40 AM CENOZOIC EXTENSION AND STRUCTURAL CONTROLS OF GEOTHERMAL SYSTEMS IN THE HOT SPRINGS MOUNTAINS, WESTERN NEVADA: FAULDS, James E.1, GARSIDE, Larry1, OPPLIGER, Gary2, and PERKINS, Michael3, (1) Nevada Bureau of Mines and Geology, University of Nevada, Reno, NV 89557, jfaulds@unr.edu, (2) Department of Geological Sciences, University of Nevada, Reno, NV 89557, (3) Department of Geology and Geophysics, University of Utah, Salt Lake City, UT 84112
31-911:00 AM CENOZOIC STRUCTURAL AND THERMAL HISTORY OF PART OF THE WESTERN MARGIN OF THE HUMBOLDT RANGE, NEVADA: PRELIMINARY INTERPRETATIONS: SCHWEICKERT, R.A.1, AREHART, G.B.1, DONELICK, R.A.2, and VIKRE, P.3, (1) Geol. Sci, Univ of Nevada, Reno, NV 89557, richschw@unr.edu, (2) Apatite to Zircon, Inc, Viola, ID 83872, (3) U.S. Geological Survey, Reno Field Office, University of Nevada, Reno, NV 89557

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