2014 GSA Annual Meeting in Vancouver, British Columbia (19–22 October 2014)

Session No. 179
Tuesday, 21 October 2014: 8:00 AM-12:00 PM
121 (Vancouver Convention Centre-West)

T10. Development and Destruction of Accretionary Complexes in Time and Space: Evolving Evidence from Modern Techniques and Structural Analysis of the Rock Record

GSA Structural Geology and Tectonics Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Geophysics Division

 

Sarah M. Roeske, Terry Pavlis and John I. Garver, Advocates
Paper #
Start Time
8:00 AM
LATE JURASSIC-EARLY MIOCENE CLASTIC SEDIMENTATION AND PLATE-TECTONIC EVOLUTION OF NORTHERN CALIFORNIA—A CLASSIC ACCRETIONARY MARGIN
ERNST, W.G., Geological and Environmental Sciences, Stanford University, Building 320, Room 118, Stanford, CA 94305-2115
8:15 AM
DETRITAL ZIRCON OF THE CHUGACH-PRINCE WILLIAM ACCRETIONARY COMPLEX, ALASKA
GARVER, John I., Geology Department, Union College, 807 Union ST, Schenectady, NY 12308-2311 and DAVIDSON, Cameron, Department of Geology, Carleton College, 1 N College St, Northfield, MN 55057
8:30 AM
A NEW TECTONO-METAMORPHIC MODEL FOR THE EMPLACEMENT OF THE ICEBERG LAKE AND LIBERTY CREEK BLUESCHIST BODIES, SOUTH CENTRAL ALASKA
DAY, Erik M., Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79968-0555, PAVLIS, Terry, Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79902 and AMATO, Jeffrey, Geological Sciences, New Mexico State University, P.O. Box 30001/MSC 3AB, Las Cruces, NM 88003
8:45 AM
THERMOCHRONOLOGIC CONSTRAINTS ON THE LATE PALEOZOIC AND EARLY MESOZOIC TECTONIC EVOLUTION OF COASTAL CENTRAL CHILE (33.5 S)
WEBB, Laura E.1, KLEPEIS, Keith2, JONES, Daniel A.2, WEBBER, Jeffrey R.3, CEMBRANO, José4, MORATA, Diego5, MORA-KLEPEIS, Gabriela2 and ARANCIBIA, Gloria4, (1)Department of Geology, University of Vermont, 180 Colchester Ave., Burlington, VT 05405, (2)Geology, University of Vermont, Burlington, VT 05405, (3)Department of Geosciences, University of Massachusetts, Amherst, 611 North Pleasant Street, Amherst, MA 01003-9297, (4)Departamento de Ingeniería Estructural y Geotécnica, Pontificia Universidad Católica de Chile, Macul, Santiago, 7820436, Chile, (5)Departamento de Geologia and Andean Geothermal Center of Excellence (CEGA, Fondap Conicyt #15090013), Universidad de Chile, Santiago, Chile
9:00 AM
ACCRETION, UNDERPLATING, DETACHMENT AND EXHUMATION ALONG THE SUBDUCTION PLATE INTERFACE: IMPLICATIONS FOR SHORT-TERM AND LONG-TERM RHEOLOGY OF THE PLATE INTERFACE, FROM  NASCENT SUBDUCTION TO CLOSURE
AGARD, Philippe1, PLUNDER, Alexis2, ANGIBOUST II, Samuel2, GUILLOT, Stéphane3 and BUROV, Evgueni2, (1)CNRS-INSU, Institut des Sciences de la Terre Paris, ISTeP, UMR 7193 Sorbonne Université, Paris, F-75005, France, (2)Inst. Sc. Terre à Paris (ISTeP), UMR CNRS 7193 Université P.M. Curie, Paris, 75005, France, (3)ISTerre CNRS, Université de Grenoble, Grenoble, 38041, France
9:20 AM
EARLY, PROLONGED AND VARIABLE METAMORPHISM OF EXOTIC BLOCKS IN THE FRANCISCAN SUBDUCTION COMPLEX
MULCAHY, Sean R., Dept. of Earth and Planetary Science, University of California, Berkeley, CA 94720, STARNES, Jesslyn K., Department of Earth and Planetary Sciences, University of California, Davis, One Shields Ave, Davis, CA 95616, COBLE, Matthew A., Department of Geological Sciences, Stanford University, Stanford, CA 94305, DAY, Howard W., Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA 95616 and VERVOORT, Jeffrey D., School of the Environment, Washington State University, Pullman, WA 99164
9:35 AM
BLUESCHIST BLOCKS IN THE SHALE-MATRIX MELANGE OF THE FRANCISCAN COMPLEX OF CALIFORNIA: METAMORPHIC AUREOLES AND SUBDUCTION CHANNEL UPWELLING
CLOOS, Mark, Geological Sciences, University of Texas at Austin, Austin, TX 78712 and UKAR, Estibalitz, Bureau of Economic Geology, University of Texas at Austin, Austin, TX 78713
 
9:55 AM
Discussion - Questions from Audience
 
10:10 AM
Break
10:25 AM
KINEMATIC MODELS FOR THE MéLANGE MIXING PROCESS VIA SIMULTANEOUS SLIP ON MULTIPLE FAULTS IN THE SUBDUCTION CHANNEL
PAVLIS, Terry, Department of Geological Sciences, University of Texas at El Paso, El Paso, TX 79902 and AMATO, Jeffrey, Geological Sciences, New Mexico State University, P.O. Box 30001/MSC 3AB, Las Cruces, NM 88003
10:40 AM
NATURE OF PERMIAN OPS MÉLANGE IN AKIYOSHI BELT, SOUTHWEST JAPAN
WAKITA, Koji, Graduate School of Science and Engineering, Yamaguchi University, Yoshida, 1677-1, Yamaguchi, 7538512, Japan
10:55 AM
P-T-T ESTIMATION OF THE FOOTWALL AND HANGING WALL OF THE VINCENT FAULT, SAN GABRIEL MTNS, SOUTHERN CALIFORNIA
XIA, Haoran, Department of Earth Sciences, University of Southern California, 3651 Trousdale Pkwy, Los Angeles, CA 90089-0740 and PLATT, John P., Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740
11:10 AM
TECTONIC DEFORMATION OF THE PANDORA PEAK UNIT INFERRED BY FOLDING AT HARLING POINT, VICTORIA, BC:  IMPLICATIONS FOR THE PACIFIC RIM TERRANE
MCEWEN, Gerri L., School of Earth and Ocean Sciences, University of Victoria, Bob Wright Center, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada and JOHNSTON, Stephen T., School of Earth and Ocean Sciences, University of Victoria, Bob Wright Centre, PO Box 1700 STN CSC, Victoria, BC V8W 2Y2, Canada
Handouts
  • TECTONIC DEFORMATION OF THE PANDORA PEAK UNIT INFERRED BY FOLDING AT HARLING POINT, VICTORIA, BC IMPLICATIONS FOR THE PACIFIC RIM TERRANE.pptx (21.6 MB)
  • 11:25 AM
    OXYGEN AND HAFNIUM ISOTOPE GEOCHEMISTRY OF ZIRCON, QUARTZ, AND GARNET FROM THE NEAR-TRENCH CRAWFISH INLET AND KRESTOF PLUTONS, BARANOF ISLAND, ALASKA
    ROIG, Claudia I., Department of Geology, University of Puerto Rico, Mayagüez, PR 00681, CAVOSIE, Aaron J., Department of Geology, University of Puerto Rico, Po Box 9000, Mayaguez, PR 00681, DAVIDSON, Cameron, Department of Geology, Carleton College, 1 N College St, Northfield, MN 55057, GARVER, John I., Geology Department, Union College, Olin Building, Schenectady, NY 12308-2311 and VALLEY, John W., Department of Geoscience, University of Wisconsin, Madison, WI 53706
    Handouts
  • Roig_et_al_GSA_2014.pdf (2.0 MB)
  •  
    11:40 AM
    Discussion
    See more of: Technical Sessions