GSA 2020 Connects Online

Session No. 34
Monday, 26 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 I

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
5:35 PM
IMPOSED SHEAR LOCALIZATION IN THE MANTLE SECTION OF AN OCEANIC PALEOTRANSFORM (BOGOTA PENINSULA SHEAR ZONE, NEW CALEDONIA) (Invited Presentation)
CHATZARAS, Vasileios, School of Geosciences, The University of Sydney, Madsen Building F09, Sydney, NSW 2006, Australia, TIKOFF, Basil, Department of Geoscience, University of Wisconsin-Madison, Madison, WI 53706, KRUCKENBERG, Seth C., Department of Earth and Environmental Sciences, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, TITUS, Sarah, Dept. of Geology, Carleton College, 1 North College St, Northfield, MN 55057, TEYSSIER, Christian, Department of Earth Environmental Sciences, University of Minnesota, Minneapolis, MN 55455 and DRURY, Martyn, Department of Earth Sciences, Utrecht University, Postbus 80021, Utrecht, 3508 TA, Netherlands
5:50 PM
MULTIDISCIPLINARY APPROACHES TO EVALUATING THE EARTH’S OLDEST EXPOSED SHEAR ZONE: THE ISUA SUPRACRUSTAL BELT OF SW GREENLAND
ZUO, Jiawei1, RAMÍREZ-SALAZAR, Anthony2, WEBB, A. Alexander G.1, MUELLER, Thomas3, PIAZOLO, Sandra2, HARVEY, Jason2, HAUZENBERGER, Christoph4, CHIN, Emily J.5, WANG, Qin6, HAPROFF, Peter J.7, WONG, Tsz Kin1, CALLUM, Charlton2, ACKERMAN, Lukáš8 and HICKMAN, Arthur9, (1)Department of Earth Sciences, University of Hong Kong, Pokfulam, Hong Kong, (2)School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom, (3)School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, United Kingdom; Geowissenschaftliches Zentrum, Georg-August-Universität Göttingen, Göttingen, D-37077, Germany, (4)Institute of Earth Sciences, University of Graz, Universitätsplatz 2, Graz, A-8012, Austria, (5)Scripps Institution of Oceanography, University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, (6)Department of Earth Sciences, Nanjing University, Xianlin Avenue 163, Nanjing, 210046, China, (7)Earth and Ocean Sciences, University of North Carolina at Wilmington, Wilmington, NC 28403, (8)Institute of Geology, The Czech Academy of Sciences, Rozvojová 269, Prague, 165 00, Czech Republic, (9)Department of Mines and Petroleum, 100 Plain St, East Perth 6004, East Perth, 6004, Australia
6:05 PM
CONSTRAINING THE DUCTILE DEFORMATION MECHANISMS OF GARNET ACROSS PRESSURE-TEMPERATURE SPACE
PHILLIPS, Noah John, Department of Geology and Geophysics, Texas A&M University, 3115 TAMU, College Station, TX 77843 and JI, Shaocheng, Ecole Polytechnique, Department of Civil, Geological and Mining Engineering, Montreal, QC H3C 3A7, Canada
6:20 PM
A NEW APPROACH FOR KINEMATIC VORTICITY QUANTIFICATION USING QUARTZ CRYSTALLOGRAPHIC PREFERRED ORIENTATIONS AND C’ SHEAR BANDS
GRAZIANI, Riccardo1, LARSON, Kyle P.1 and THIGPEN, J. Ryan2, (1)Earth, Environmental and Geographic Sciences, University of British Columbia Okanagan, Kelowna, BC V1V 1V7, Canada, (2)Department of Earth and Environmental Sciences, University of Kentucky, Lexington, KY 40506
6:35 PM
EVERYTHING BUT THE EARTHQUAKE (Invited Presentation)
ROWE, Christie D., Dept of Earth and Planetary Sciences, McGill University, 3450 University street, Montreal, QC H3A 0E8, Canada
6:50 PM
PSEUDOTACHYLYTE AND SHEAR FOLDS: MID-CRUSTAL FEEDBACKS DURING THE SEISMIC CYCLE
MELOSH, Benjamin L., US Geological Survey, P.O. Box 158, 350 N Akron Rd, Moffett Field, CA 94035 and ROWE, Christie D., Dept of Earth and Planetary Sciences, McGill University, 3450 University street, Montreal, QC H3A 0E8, Canada
7:05 PM
EXPLORING NATURALLY DEFORMED FELDSPAR MYLONITES FROM A BRITTLE-DUCTILE TRANSITION: IMPLICATIONS FOR CRUSTAL RHEOLOGY
ZUZA, Andrew V.1, CAO, Wenrong2, DESORMEAU, Joel W.2, RODRIGUEZ, Angelica2 and ODLUM, Margaret3, (1)Nevada Bureau of Mines and Geology, University of Nevada, Reno, NV 89557, (2)Department of Geological Sciences and Engineering, University of Nevada, Reno, Reno, NV 89557, (3)Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322
7:20 PM
PROTRACTED DEFORMATION WITHIN THE MESOZOIC SIERRAN ARC, CRONESE HILLS, SOUTHERN CALIFORNIA
PANAHI, Fatema, WALKER, J. Douglas and ANDREW, Joseph E., Department of Geology, The University of Kansas, 1414 Naismith Blvd, Ritchie Hall, Lawrence, KS 66045
7:35 PM
THE IMPORTANCE AND ORIGIN OF ULTRAMYLONITES: AN EXPERIMENTAL PERSPECTIVE (Invited Presentation)
CROSS, Andrew J.1, SKEMER, Philip2, COUVY, Helene2 and OLREE, Elizabeth2, (1)Geology & Geophysics, Woods Hole Oceanographic Institution, 266 Woods Hole Road, Woods Hole, MA 02543, (2)Dept. of Earth and Planetary Sciences, Washington University in St Louis, Saint Louis, MO 63130
 
7:50 PM
Discussion
See more of: Technical Sessions