Start | View Uploaded Presentations | Author Index | Meeting Information

GSA Annual Meeting in Seattle, Washington, USA - 2017

Session No. 320
Wednesday, 25 October 2017: 8:00 AM-12:00 PM
Tahoma 2 (The Conference Center)

T210. Challenges in Tectonics: Beyond Steady State: New Developments in Understanding Strain Localization Processes and the Rheology of the Lithosphere

GSA Structural Geology and Tectonics Division; Future of Tectonics Initiative
Seth C. Kruckenberg, Jamie S. Levine and Elena A. Miranda, Advocates
320-1
8:00 AM
STRAIN PARTITIONING AND LOCALIZATION IN GRANITOID FAULT ROCKS DEFORMED AT ELEVATED PRESSURES AND TEMPERATURES (Invited Presentation)
PEC, Matej, Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave, 54-720, Cambridge, MA 02139, mpec@mit.edu
320-2
8:15 AM
THE INTERACTION BETWEEN BRITTLE- AND DISLOCATION CREEP IN QUARTZ
REBER, Jacqueline E., Dept. of Geological and Atmospheric Sciences, Iowa State University, 2237 Osborn Drive, Ames, IA 50011 and PEC, Matej, Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave, 54-720, Cambridge, MA 02139, jreber@iastate.edu
320-3
8:30 AM
MODELING FEEDBACKS BETWEEN TRANSIENT THERMAL EVOLUTION, RHEOLOGICAL BEHAVIOR, AND STRAIN LOCALIZATION IN COLLISIONAL THRUST BELTS
THIGPEN, J. Ryan, Earth and Environmental Sciences, University of Kentucky, 121 Washington Ave., Lexington, KY 40506, ASHLEY, Kyle T., Department of Geosciences, Virginia Tech, 4044 Derring Hall (0420), Blacksburg, VA 24061 and LAW, Richard D., Department of Geosciences, Virginia Tech, Blacksburg, VA 24061, ryan.thigpen@uky.edu
320-4
8:45 AM
FROM MICROKINEMATICS TO MACRO-INTERPRETATION: VARIATION IN KINEMATIC VORTICITY AND STRAIN LOCALIZATION IN THE RUBY-EAST HUMBOLDT SHEAR ZONE, NORTHEASTERN NEVADA
MCGREW, Allen J., Department of Geology, The University of Dayton, 300 College Park, Dayton, OH 45469-2364 and RAHL, Jeffrey M., Department of Geology, Washington and Lee University, Lexington, VA 24450, amcgrew1@udayton.edu
320-5
9:00 AM
USING QUARTZ PETROFABRIC INTENSITY PARAMETERS TO DELINEATE SHEAR ZONES: A CASE STUDY FROM THE MAIN CENTRAL THRUST IN WESTERN BHUTAN
STARNES, Jesslyn K.1, LONG, Sean P.1, ZHANG, Jingyi2 and GORDON, Stacia M.3, (1)School of the Environment, Washington State University, Pullman, WA 99164, (2)School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, (3)Department of Geological Sciences, University of Nevada- Reno, 1664 N. Virginia Street, Reno, NV 89557, jesslyn.starnes@wsu.edu
320-6
9:15 AM
FTIR MEASUREMENTS OF WATER IN FAULT ROCKS OF THE SOUTH TIBETAN DETACHMENT, GREATER HIMALAYA
JEZEK, Lynna P.1, KRONENBERG, Andreas K.1, LAW, Richard D.2, JESSUP, Micah J.3 and SEARLE, Michael P.4, (1)Geology and Geophysics, Texas A&M University, College Station, TX 77843, (2)Department of Geosciences, Virginia Tech, Blacksburg, VA 24061, (3)Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996, (4)Department of Earth Sciences, University of Oxford, Oxford, OX1 3AN, United Kingdom, lynna.jezek@gmail.com
320-7
9:30 AM
APPARENT MECHANICAL HARDENING OF HIGHLY STRAINED QUARTZITE IN THE INNER AUREOLE OF THE PAPOOSE FLAT PLUTON, EASTERN CALIFORNIA
ASHLEY, Kyle T.1, HEAVERLO, Nicholas D.2, LAW, Richard D.2, BEHR, Whitney M.3 and MORGAN, Sven S.4, (1)Department of Geology and Environmental Science, University of Pittsburgh, 4107 O'Hara St., Pittsburgh, PA 15260, (2)Department of Geosciences, Virginia Tech, Blacksburg, VA 24061, (3)Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, (4)Department of Earth and Atmospheric Sciences, Central Michigan University, Mount Pleasant, MI 48859, ktashley@pitt.edu
 
9:45 AM
Break
 
10:00 AM
Poster lightening round
320-8
10:15 AM
RELATIONSHIPS AMONG TRANSIENT BRITTLE AND DUCTILE DEFORMATION AND METAMORPHIC REACTIONS IN CRUSTAL SHEAR ZONES (Invited Presentation)
MAHAN, Kevin H.1, GONCALVES, Philippe2, ORLANDINI, Omero F.1, LEYDIER, Thomas2, CONDIT, Cailey B.3 and MORIS-MUTTONI, Benjamin2, (1)Department of Geological Sciences, University of Colorado Boulder, 2200 Colorado Avenue, UCB 399, Boulder, CO 80309-0399, (2)UMR Chrono-environnement, Université de Franche-Comté, 16 route de Gray, Besançon, 25030, France, (3)Department of Earth Science, Rice University, MS-126, 6100 Main Street, Houston, TX 77005, Kevin.Mahan@colorado.edu
320-9
10:30 AM
STRAIN LOCALIZATION INDUCED BY LATE-MAGMATIC CO2 FLUX AND REACTION-DRIVEN STRAIN SOFTENING
SØRENSEN, Bjørn Eske, LARSEN, R.B. and GRANT, Thomas Bartholomew, Department of Geoscience and Petroleum, Norwegian University of Science and Technology, Sem Saelands veg 1, Trondheim, 7491, Norway, bjorn.sorensen@ntnu.no
320-10
10:45 AM
THE EFFECT OF MAGMATIC UNDERPLATING ON RHEOLOGICAL PROPERTIES OF THE UPPER MANTLE: THEORY AND OBSERVATION
MICHELS, Zachary David, Department of Earth Sciences, University of Minnesota, 310 Pillsbury Drive SE, Minneapolis, MN 55455 and MEDARIS Jr., L. Gordon, Department of Geoscience, University of Wisconsin, 1215 W. Dayton St., Madison, WI 53706, mich0201@umn.edu
320-11
11:00 AM
METAMORPHICALLY-INDUCED RHEOLOGICAL HETEROGENEITY AND THE DEEP TREMOR SOURCE IN SUBDUCTION ZONES (Invited Presentation)
BEHR, Whitney M.1, KOTOWSKI, Alissa2 and ASHLEY, Kyle2, (1)Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, (2)Department of Geological Sciences, University of Texas at Austin, Austin, TX 78712, behr@utexas.edu
320-12
11:15 AM
LITHOSPHERE AND SHALLOW ASTHENOSPHERE RHEOLOGY FROM OBSERVATIONS OF POST-EARTHQUAKE RELAXATION
POLLITZ, Frederick F., U.S. Geological Survey, Earthquake Science Center, 345 Middlefield Rd., MS 977, Menlo Park, CA 94025, fpollitz@usgs.gov
320-13
11:30 AM
PSEUDOTACHYLYTE DEVELOPMENT RESULTING FROM STRAIN LOCALIZATION IN BRITTLE DUCTILE TRANSITION QUARTZOFELSPATHIC MYLONITES, SOUTH MOUNTAINS CORE COMPLEX, ARIZONA
STEWART, Craig, Geological Sciences, California State University, Northridge, Live Oak 1202, 18111 Nordhoff Street, Northridge, CA 91330 and MIRANDA, Elena A., Department of Geological Sciences, California State University Northridge, 18111 Nordhoff St., Northridge, CA 91330, craig.stewart.311@my.csun.edu
320-14
11:45 AM
NANO-SCALE EVIDENCE FOR DYNAMIC WEAKENING AND HEALING DURING AN EARTHQUAKE ON A HEMATITE FAULT MIRROR
AULT, Alexis K.1, JENSEN, Jordan Leo2, MCDERMOTT, Robert G.1, VAN DEVENER, Brian3 and SHEN, Fen-Ann4, (1)Department of Geology, Utah State University, Logan, UT 84322, (2)Department of Geosciences, University of Arizona, Tucson, AZ 85721, (3)Nano-scale Imaging and Surface Analysis Lab, University of Utah, Salt Lake City, UT 84122, (4)Microscopy Core Facility, Utah State University, Logan, UT 84322, alexis.ault@usu.edu
See more of: Technical Sessions
<< Previous Session | Next Session >>