GSA Connects 2022 meeting in Denver, Colorado

Session No. 147
Tuesday, 11 October 2022: 8:00 AM-12:00 PM
605 (Colorado Convention Center)

T29. Structural Analysis of Polyphase Deformation from Orogen to Thin Section I: A Special Session in Honor of Sharon Mosher

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

 

Miriam Barquero Molina, Jamie Levine, John Singleton and Paul Betka, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:15 AM
A ‘NEW” CHARACTERIZATION OF DEFORMED PALEOGENE VOLCANICS FROM THE PAISLEY HILLS, SOUTH-CENTRAL OREGON
GRAY, Gary1, O'SULLIVAN, Paul2, JOHNSON, Kenneth3, HAUGE, Tom4, ROSSEN, Christine4, JACKSON, Jay5, WAUGH, Barb5, ADEY, Peter6, PEPLAU, Molly3, POWELL, Amanda3 and PEZZOPANE, Silvio7, (1)Earth Environmental and Planetary Sciences, Rice University, 6100 Main St, Houston, TX 77005, (2)GeoSep Services, 1521 Pine Cone Road, Moscow, ID 87872-9709, (3)Department of Natural Sciences, University of Houston-Downtown, 1 Main Street, Houston, TX 77002, (4)Retired, Seattle, WA 98101, (5)Retired, Park City, UT 84060, (6)retired, Portland, OR 97201, (7)Independent Researcher, PO Box 116, Paisley, OR 97636
8:30 AM
MODELLING THE KINEMATIC EVOLUTION OF VALLEY-SCALE FOLDING IN SURGE-TYPE GLACIERS
YOUNG, Erik M., Earth Sciences, Simon Fraser University, Vancouver, BC V5A 1S6, Canada, FLOWERS, Gwenn E., Earth Sciences, Simon Fraser University, Vancouver, BC v5m2y5, Canada, JISKOOT, Hester, Department of Geography and Environment, University of Lethbridge, Lethbridge, AB T1K 3M4, Canada and GIBSON, Daniel H., Earth Sciences, Simon Fraser University, Vancouver, BC V5A 1S6, Canada; Earth Sciences, Simon Fraser University, Vancouver, BC V5A 1S6, Canada
8:45 AM
PARTIAL MELTING OF UHP ECLOGITES DURING EXHUMATION, SULU BELT, CHINA—FLUID–MELT EVOLUTION, DEFORMATION AND IMPLICATIONS FOR EXHUMATION DYNAMICS
WANG, Lu, State Key Laboratory of Geological Processes and Mineral Resources and Center for Global Tectonics, China University of Geosciences, Wuhan, 68Jincheng Street, East Lake High-tech Devp. Zone, Wuhan, Hubei Province 430078, China, BROWN, Michael, Department of Geology, University of Maryland, 237 Regents Drive, College Park, MD 20742 and JOHNSON, Tim E., School of Earth and Planetary Sciences, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
9:00 AM
DECRYPTING POLYPHASE DEFORMATION WITH QUARTZ CRYSTALLOGRAPHIC FABRICS IN THE WANN RIVER SHEAR ZONE, NORTHERN CANADIAN CORDILLERA
SOUCY LA ROCHE, Renaud1, ZAGOREVSKI, Alex2 and JOYCE, Nancy L.2, (1)Centre Eau Terre Environnement, Institut national de la recherche scientifique, 490 rue de la Couronne, Québec, QC G1K 9A9, CANADA; Geological Survey of Canada, Natural Resources Canada, 601 Booth St., Ottawa, ON K1A 0E8, Canada, (2)Geological Survey of Canada, Natural Resources Canada, 601 Booth St., Ottawa, ON K1A 0E8, Canada
9:15 AM
DISTINGUISHING MULTIPHASE AND NON-STEADY DEFORMATION HISTORIES IN LARGE SEISMOGENIC FAULTS AND SHEAR ZONES (Invited Presentation)
KLEPEIS, Keith1, WEBB, Laura2, MIRANDA, Elena3 and SCHWARTZ, Joshua, PhD3, (1)Department of Geography and Geoscience, University of Vermont, 180 Colchester Avenue, Burlington, VT 05405, (2)Department of Geography and Geoscience, University of Vermont, Burlington, VT 05405, (3)Department of Geological Sciences, California State University Northridge, 18111 Nordhoff St., Northridge, CA 91330
 
9:35 AM
Break
9:50 AM
SHEETS AND RODS: STRAIN AND DUCTILE DEFORMATION OF THE STRATHAN CONGLOMERATE, MOINE NAPPE, NORTHERNMOST SCOTLAND
MOSHER, Sharon, University of Texas at Austin Jackson School of Geosciences, 2305 Speedway Stop C1160, Austin, TX 78712-1689 and ORLANDINI, Omero F., Department of Geological Sciences, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712
10:05 AM
LATE CRETACEOUS ARC FLARE UP AND SINISTRAL INTRA-ARC DUCTILE DEFORMATION IN THE SOUTHERN CALIFORNIA BATHOLITH
SCHWARTZ, Joshua, PhD1, LACKEY, Jade Star2, MIRANDA, Elena1, KLEPEIS, Keith3, MORA-KLEPEIS, Gabriela4, ROBLES, Francine1 and BIXLER, Jonathan1, (1)Department of Geological Sciences, California State University Northridge, 18111 Nordhoff St., Northridge, CA 91330, (2)Department of Geology, Pomona College, Claremont, CA 91711, (3)Department of Geography and Geoscience, University of Vermont, 180 Colchester Avenue, Burlington, VT 05405, (4)Department of Geography and Geoscience, University of Vermont, Burlington, VT 05405
10:20 AM
THREE PHASES OF JURASSIC-CRETACEOUS SINISTRAL SHEAR IN THE EARLY ANDEAN MAGMATIC ARC, NORTHERN CHILE
MAVOR, Skyler, Department of Geosciences, Colorado State University, 1401 Campus Delivery, Ft. Collins, CO 80523; U.S. Geological Survey, 2255 N. Gemini Drive, Flagstaff, AZ 86001, SINGLETON, John, Department of Geosciences, Colorado State University, Fort Collins, CO 80523, SEYMOUR, Nikki M., Geosciences, Colorado State University, 400 University Ave., Fort Collins, CO 80523-0001, GOMILA, Rodrigo, Geosciences, University of Padova, Via Giovanni Gradenigo, 6, Padova, 35131, Italy, HEUSER, Gert, Departamento de Ingeniería Estructural y Geotécnica, Pontificia Universidad Católica de Chile, Santiago, 00000, Chile, ARANCIBIA HERNÁNDEZ, Gloria, Departamento de Ingeniería Estructural y Geotécnica, Pontificia Universidad Católica de Chile, Santiago, Región Metropolitana, Chile and STOCKLI, Daniel F., Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712
10:35 AM
RHEOLOGY AND STRAIN LOCALIZATION ALONG THE INTRA-ARC ATACAMA FAULT SYSTEM, NORTHERN CHILE
SINGLETON, John, Department of Geosciences, Colorado State University, Fort Collins, CO 80523, SEYMOUR, Nikki M., Stanford University, Stanford, CA 94305, MAVOR, Skyler, Geosciences, Colorado State University, 400 University Ave., Fort Collins, CO 80523-0001, GOMILA, Rodrigo, Geosciences, University of Padova, Via Giovanni Gradenigo, 6, Padova, 35131, Italy, HEUSER, Gert, Departamento de Ingeniería Estructural y Geotécnica, Pontificia Universidad Católica de Chile, Santiago, 00000, Chile, ARANCIBIA HERNÁNDEZ, Gloria, Departamento de Ingeniería Estructural y Geotécnica, Pontificia Universidad Católica de Chile, Santiago, Región Metropolitana, Chile and RUTHVEN, Rachel C., Department of Geosciences, Colorado State University, 1482 Campus Delivery, Fort Collins, CO 80523
10:50 AM
BRITTLE-DUCTILE TRANSITION EXPOSED ALONG STRANDS OF THE BLUE RIDGE THRUST SHEET IN THE MOUNTAIN CITY WINDOW, NORTH CAROLINA–TENNESSEE–VIRGINIA
LEVINE, Jamie1, CORTESE, Callia J.2, MERSCHAT, Arthur3 and CASALE, Gabriele1, (1)Geological and Environmental Sciences, Appalachian State University, 572 Rivers Street, Boone, NC 28608, (2)Department of Earth and Environmental Sciences, University of Kentucky, 121 Washington Avenue, LEXINGTON, KY 40506, (3)Florence Bascom Geoscience Center, U.S. Geological Survey, MS 926A National Center, Reston, VA 20192
11:05 AM
INTEGRATING PETROLOGY, GEOCHRONOLOGY, AND THERMOCHRONOLOGY TO UNRAVEL THE COMPLEX PALEOZOIC TECTONOMETAMORPHIC HISTORY OF THE SOUTHERN APPALACHIAN OROGENIC CORE
THIGPEN, Ryan, Department of Earth and Environmental Sciences, University of Kentucky, 121 Washington Avenue, LEXINGTON, KY 40506, MOECHER, Dave, Department of Earth and Environmental Sciences, University of Kentucky, 101 Slone Bldg, Lexington, KY 40506-0053, STOWELL, Harold, Department of Geological Sciences, Univ of Alabama, Box 870338, Tuscaloosa, AL 35487-0338, POWELL, Nicholas E., Department of Earth and Environmental Sciences, University of Kentucky, Lexington, KY 40506, SPENCER, Brandon, Boone Pickens School of Geology, Oklahoma State University, 302 Noble Research Center, Stillwater, OK 74078, BOLLEN, Elizabeth M., Department of Geological Sciences, University of Alabama, Box 870338, Tuscaloosa, AL 35487-0338, MERSCHAT, Arthur, U.S. Geological Survey, Florence Bascom Geoscience Center, 926A National Center, Reston, VA 20192, HATCHER Jr., Robert, Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996, MAKO, Calvin A., Arizona Geological Survey, 1955 E. 6th St, Tucson, AZ 85721 and KYLANDER-CLARK, Andrew, Geological Sciences, UC, Santa Barbara, Department of Geological Sciences, UC Santa Barbara—Building 526, Santa Barbara, CA 93106-9630
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