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GSA 2020 Connects Online

Session No. 96
Tuesday, 27 October 2020: 5:30 PM-8:00 PM

T27. Approaches for Extracting Shear Zone History from the Ductile Rock Record: Probing Their Initiation, Evolution, and Reactivation II

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

 

Tarryn K. Cawood, Alexander Dmitri Lusk and Nicolas M. Roberts, Advocates
Paper #
Start Time
 
5:30 PM
Introductory Remarks
96-1
5:35 PM
EFFECT OF CRUST-MANTLE BOUNDARY ON THE GEOMETRY OF DUCTILE SHEAR ZONES
ALLISON, Kali L. and MONTESI, Laurent, Department of Geology, University of Maryland, 237 Regents Drive, College Park, MD 20742
96-2
5:45 PM
CAN WE PREDICT THE WIDTH OF DUCTILE SHEAR ZONES?
CAWOOD, Tarryn K. and PLATT, John, Department of Earth Sciences, University of Southern California, 3651 Trousdale Parkway, Los Angeles, CA 90089-0740
96-3
5:55 PM
PETROCHRONOLOGY AND MICROSTRUCTURE OF TITANITE ACROSS A SHEARED PEGMATITE DIKE FROM THE ROAN WINDOW, NORWAY
BLATCHFORD, Hannah J., SMALL, Grey D., NEWVILLE, Christine E., TEYSSIER, Christian and WHITNEY, Donna L., Department of Earth & Environmental Sciences, University of Minnesota, Minneapolis, MN 55455
96-4
6:05 PM
USING ORIENTATION STATISTICS TO TEST SHEAR ZONE MODELS: AN EXAMPLE FROM THE MARGIN OF THE PALEOARCHEAN MT EDGAR GRANITIC DOME, WESTERN AUSTRALIA
ROBERTS, Nicolas M., Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706 and TIKOFF, Basil, Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706
96-5
6:15 PM
REPRESENTING PROGRESSIVE FABRIC PATHS ON A TRIANGULAR PLOT USING A FABRIC DENSITY INDEX AND CRYSTAL AXES EIGENVECTOR BARYCENTERS
VOLLMER, Frederick W., Geology Department, SUNY New Paltz, 1 Hawk Drive, New Paltz, NY 12561
96-6
6:25 PM
PRACTICAL ASSESSMENT OF CRYSTALLOGRAPHIC PREFERRED ORIENTATION STRENGTH
LARSON, Kyle P.1, GRAZIANI, Riccardo1, PIETTE-LAUZIÈRE, Nicolas1 and KILIAN, Rüdiger2, (1)Earth, Environmental and Geographic Sciences, University of British Columbia Okanagan, Kelowna, BC V1V 1V7, Canada, (2)Institut für Geowissenschaften und Geographie, Martin-Luther-Universität Halle-Wittenberg, Halle, 06099, Germany
96-7
6:35 PM
PENETRATIVE STRAIN ESTIMATION USING NORMALIZED FRY, RF-Φ AND SHAPE MATRIX EIGENVECTOR METHODS: A COMPARATIVE STUDY FROM EASTERN HIMALAYAN FOLD THRUST BELT
PARUI, Chirantan, DAS, Jyoti Prasad and BHATTACHARYYA, Kathakali, Department of Earth Sciences, Indian Institute of Science Education Research Kolkata (IISERK), Mohanpur Campus, Mohanpur, 741246, India
96-8
6:45 PM
MICROSTRUCTURAL AND THERMOBAROMETRIC DATA DEFINE DISTRIBUTED NORTH-VERGENT SHEARING IN EASTERNMOST BHUTAN: AN ALTERNATIVE STYLE FOR THE SOUTH TIBETAN DETACHMENT SYSTEM
STARNES, Jesslyn K.1, LONG, Sean P.1, KOHN, Matthew J.2, MCQUARRIE, Nadine3, LARSON, Kyle P.4, TOBGAY, Tobgay5 and SOIGNARD, Emmanuel6, (1)School of the Environment, Washington State University, Pullman, WA 99164, (2)Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, (3)Department of Geology and Environmental Science, University of Pittsburgh, Pittsburgh, PA 15260-3332, (4)Earth, Environmental and Geographic Sciences, University of British Columbia Okanagan, Kelowna, BC V1V 1V7, Canada, (5)Tobgay & Tobgay Consultancy, P.O. Box 548, Thimpu, Bhutan, (6)Leroy Eyring Center for Solid State Science, Arizona State University, Physical Sciences Bldg B, 901 S. Palm Walk, Tempe, AZ 85287
96-9
6:55 PM
STRAIN PARTITIONING WITHIN THRUST SHEETS: INSIGHTS FROM FAR-EASTERN SIANG WINDOW, ARUNACHAL HIMALAYAN FOLD THRUST BELT
DAS, Jyoti Prasad and BHATTACHARYYA, Kathakali, Department of Earth Sciences, Indian Institute of Science Education Research Kolkata (IISERK), Mohanpur Campus, Mohanpur, 741246, India
96-10
7:05 PM
INTEGRATING TEMPERATURE, FABRIC, STRAIN, AND KINEMATIC DATA TO ILLUMINATE THE STRUCTURAL EVOLUTION OF THE SOUTH TIBETAN DETACHMENT SYSTEM IN NORTHWESTERN BHUTAN
LONG, Sean P.1, MULLADY, Connor L.1, STARNES, Jesslyn K.1, GORDON, Stacia M.2, LARSON, Kyle3, PIANOWSKI, Laura S.4, MILLER, Robert B.5 and SOIGNARD, Emmanuel6, (1)School of the Environment, Washington State University, Pullman, WA 99164, (2)Department of Geological Sciences and Engineering, University of Nevada, Reno, 1664 N. Virginia Street, MS0172, Reno, NV 89557, (3)Earth and Environmental Sciences, University of British Columbia, Okanagan, 3247 University Way, Kelowna, BC V1V 1V7, Canada, (4)U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver Federal Center, Denver, CO 80225, (5)Department of Geology, San Jose State University, One Washington Square, San Jose, CA 95192, (6)Leroy Eyring Center for Solid State Science, Arizona State University, Physical Sciences Bldg B, 901 S. Palm Walk, Tempe, AZ 85287
96-11
7:15 PM
POLYPHASE DEFORMATION ALONG THE WANN RIVER SHEAR ZONE: IMPLICATIONS FOR THE EVOLUTION OF THE YUKON-TANANA TERRANE IN THE NORTHERN CANADIAN CORDILLERA
SOUCY LA ROCHE, Renaud1, ZAGOREVSKI, Alexandre2 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
96-12
7:25 PM
TEAMWORK OF SHEAR ZONES DURING EXHUMATION, THE ROAN WINDOW, NORWAY
NEWVILLE, Christine E., BLATCHFORD, Hannah J., TEYSSIER, Christian and WHITNEY, Donna L., Department of Earth & Environmental Sciences, University of Minnesota, Minneapolis, MN 55455
96-13
7:35 PM
RETROGRADE DEFORMATION AND FLUID FLOW AT THE BASE OF A BARROVIAN SEQUENCE, DUTCHESS COUNTY, NY
RUGGIERO, Mathew S., Department of Geology, SUNY New Paltz, 1 Hawk Drive, New Paltz, NY 12561, FAUL, Ulrich, Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, 77 Massachusetts Ave, Cambridge, MA 02139, VOLLMER, Frederick W., Geology Department, SUNY New Paltz, 1 Hawk Drive, New Paltz, NY 12561 and GARAPIC, Gordana, Geology Department, SUNY New Paltz, 1 Hawk Drive, New Paltz, NY 012561
 
7:45 PM
Discussion
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