GSA Annual Meeting in Denver, Colorado, USA - 2016

Session No. 229
Tuesday, 27 September 2016: 1:30 PM-5:30 PM
Room 203 (Colorado Convention Center)

T211. Large-Scale Continental Extensional Tectonics

GSA Structural Geology and Tectonics Division
Ibrahim Çemen and Spyridon Pavlides, Advocates
1:30 PM
RIFTING INITIATION THROUGH LATERAL VARIATIONS OF LITHOSPHERIC BASAL STRESS BENEATH PREEXISTING ZONES OF WEAKNESS
GAO, Stephen S. and LIU, Kelly H., Geology and Geophysics Program, Missouri University of Science and Technology, Rolla, MO 65409, sgao@mst.edu
1:45 PM
LARGE SCALE CENOZOIC CRUSTAL EXTENSION IN WESTERN ANATOLIA EXTENDED TERRANE (WAET), TURKEY
ÇEMEN, Ibrahim1, CATLOS, Elizabeth J.2, HANCER, Mete3, OZDEMIR, Burcu4, MILLER, Lauren5 and OZERDEM, Cenk5, (1)Department of Geological Sciences, The University of Alabama, Tuscaloosa, AL 35406, (2)The Jackson School of Geosciences, The Unversity of Texas at Austin, 23rd st., Austin, TX 78759, (3)Department of Geology, Pammukkale University, Denizli, Turkey, (4)Turkish Science Foundation (TUBITAK), Tunus Caddesi, Ankara, Turkey, (5)Boone Pickens School of Geology, Oklahoma State University, Stillwater, OK 74078, icemen@ua.edu
2:00 PM
RESPONSE TO SLAB ROLL-BACK: REVEALING THE GEODYNAMIC HISTORY OF WESTERN TURKEY FROM THE BIGA PENINSULA TO THE MENDERES MASSIF (Invited Presentation)
CATLOS, Elizabeth J., Geological Sciences, University of Texas at Austin, Jackson School of Geosciences, Austin, TX 78712, ETZEL, Thomas M., The Jackson School of Geosciences, The Unversity of Texas at Austin, 23rd st., Austin, TX 78759, KELLY, Eric D., Dept. of Geological Sciences, Jackson School of Geosciences, The University of Texas, Austin, TX 78712, ASHLEY, Kyle T., Department of Geological Sciences, University of Texas at Austin, Austin, TX 78712, ÇEMEN, Ibrahim, Department of Geological Sciences, The University of Alabama, Tuscaloosa, AL 35487 and OYMAN, Tolga, Department of Geology, Dokuz Eylul University, Cumhuriyet Bulvari No: 144, Izmir, 35210, Turkey, ejcatlos@gmail.com
2:20 PM
HIGH-RESOLUTION GARNET P-T PATHS FOR THE CENTRAL MENDERES MASSIF, WESTERN TURKEY
ETZEL, Thomas M.1, LIZZADRO-MCPHERSON, Daniel1, KELLY, Eric D.2, CATLOS, Elizabeth J.1, ASHLEY, Kyle T.1, OZERDEM, Cenk3 and CEMEN, Ibrahim4, (1)The Jackson School of Geosciences, The Unversity of Texas at Austin, 2275 Speedway Stop C9000, Austin, TX 78712, (2)The Jackson School of Geosciences, The Unversity of Texas at Austin, Austin, TX 78712, (3)Boone Pickens School of Geology, Oklahoma State University, Stillwater, OK 74078, (4)Department of Geological Sciences, University of Alabama, Tuscaloosa, AL 35406, thomas.etzel@utexas.edu
2:35 PM
EXTENSIONAL TECTONICS OF THE CORINTH GULF (CENTRAL GREECE) AND THE GEOMETRY OF THE DELPHI-ORACLE FAULT
PAVLIDES, Spyridon and VALKANIOTIS, Sotiris, Department of Geology, Aristotle University of Thessaloniki, Thessaloniki, 54124, Greece, pavlides@geo.auth.gr
2:50 PM
TEMPORAL CONSTRAINTS ON PROGRESSIVE RIFTING AND HYPEREXTENSION USING BEDROCK AND DETRITAL ZIRCON (U-TH)/(PB-HE) DATING, MAULéON BASIN, WESTERN PYRENEES
HART, Nicole R., Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, STOCKLI, Daniel F., Department of Geological Sciences, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, LAVIER, Luc L., Institute for Geophysics- Jackson School of Geosciences, University of Texas at Austin, Pickle Research Campus, 10100 Burnet Rd. (Bldg 196), Austin, TX 78758-4445 and HAYMAN, Nicholas W., Institute for Geophysics, University of Texas, 10100 Burnet Rd, Bldg 196, Austin, TX 78758, hartnic4@utexas.edu
 
3:05 PM
Break
3:20 PM
THE ROLE OF SURFACE PROCESSES IN STABILIZING BASIN AND RANGE STYLE HALF-GRABEN STRUCTURES (Invited Presentation)
OLIVE, Jean-Arthur L.1, MALATESTA, Luca C.2, BEHN, Mark3 and BUCK, W. Roger1, (1)Marine Geology and Geophysics Division, Lamont-Doherty Earth Observatory / Columbia University, 61 Rt. 9W, Palisades, NY 10964, (2)Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, (3)Department of Geology and Geophysics, Woods Hole Oceanographic Institution, 360 Woods Hole Road, Mail Stop 22, Woods Hole, MA 02543, jaolive@ldeo.columbia.edu
3:40 PM
SHORTENING IN THE UPPER PLATE OF THE BUCKSKIN-RAWHIDE EXTENSIONAL DETACHMENT FAULT, SOUTHWESTERN USA, AND IMPLICATIONS FOR STRESS STATE DURING EXTENSION
SPENCER, Jon E.1, REYNOLDS, Stephen J.2, SCOTT, Robert J.3 and RICHARD, Stephen M.1, (1)Department of Geosciences, University of Arizona, Tucson, AZ 85721, (2)School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287-1404, (3)ARC Centre of Excellence in Ore Deposits (CODES), University of Tasmania, Private Bag 79, Hobart, Tasmania, Australia, jklmspenc@dakotacom.net
3:55 PM
EVIDENCE FOR DISTRIBUTED CLOCKWISE ROTATION OF THE CRUST IN THE NORTHWESTERN UNITED STATES FROM FAULT GEOMETRIES AND EARTHQUAKE FOCAL MECHANISMS
BROCHER, Thomas M.1, WELLS, Ray E.2 and LAMB, Andrew P.2, (1)U.S. Geological Survey, Earthquake Science Center, 345 Middlefield Road, MS 977, Menlo Park, CA 94025, (2)U.S. Geological Survey, 345 Middlefield Road MS 973, Menlo Park, CA 94025, brocher@usgs.gov
4:10 PM
THE ROLE OF FAULT SCALE IN CONTROLLING RELAY RAMP SPACING AND OVERLAP IN THE BASIN AND RANGE
HOPKINS, Michael C., Earth and Environmental Sciences, Tulane University, 6823 St. Charles Ave, New Orleans, LA 70118 and DAWERS, Nancye H., Department of Earth and Environmental Sciences, Tulane University, 6823 St. Charles Ave, 101 Blessey Hall, New Orleans, LA 70118, mhopkin2@tulane.edu
4:25 PM
AN ASSESSMENT OF SYNEXTENSIONAL DIKES EMPLACED DURING EARLY SLIP ON THE MOHAVE WASH LOW-ANGLE NORMAL FAULT, CHEMEHUEVI MOUNTAINS, SE CALIFORNIA
KLOPFENSTEIN, Trey1, GRIMES, Craig B.1, JOHN, Barbara E.2, LAFORGE, Justin S.2 and COX, Evan1, (1)Geological Sciences, Ohio University, 316 Clippinger Laboratories, 1 Ohio University, Athens, OH 45701, (2)Geology and Geophysics, University of Wyoming, Laramie, WY 82071, tk366413@ohio.edu
4:40 PM
LARGE SCALE CONTINENTAL EXTENSION IN WEST ANTARCTICA
SIDDOWAY, Christine S.1, TINTO, Kirsteen2, BELL, Robin E.2 and ROSETTA-ICE TEAM, 20162, (1)Geology Department, Colorado College, 14 E Cache la Poudre, Colorado Springs, CO 80903, (2)Lamont-Doherty Earth Observatory, Columbia University, 61 Rt. 9W, 109B Oceanography, Palisades, NY 10964, csiddoway@ColoradoCollege.edu
4:55 PM
CONSTRAINING THE DEFORMATION AND EROSION HISTORIES OF CONTINENTAL RIFTING IN THE BOHAI BAY BASIN, CHINA
BALL, Stephen M.1, HE, Dengfa2, ZHANG, Yuying2, SHAN, Shuanqiang2, EICHELBERGER, Nathan W.1 and NUNNS, Alan G.1, (1)StructureSolver, P.O. Box 335, Danville, CA 94526, (2)China University of Geosciences Beijing, Beijing, 100083, China, balls16@mail.wlu.edu
5:10 PM
SUBSURFACE STRUCTURAL GEOLOGY AND TECTONO-STRATIGRAPHY OF THE OFF-SHORE AKCAKOCA-AMASRA AREA, WESTERN BLACK SEA BASIN, TURKEY
TÜRKMEN, Özgür, University of Alabama Geological Sciences Department, Department of Geological Sciences University of Alabama Box 870338, Tuscaloosa, AL 35487, CEMEN, Ibrahim, Department of Geological Sciences, University of Alabama, Tuscaloosa, AL 35406 and YURTSEVER, Tuğrul Şükrü, General Directorate of Mineral Research and Exploration, Üniversiteler Mahallesi Dumlupınar Bulvarı No:139, Çankaya, Ankara, 06800, Turkey, oturkmen@crimson.ua.edu
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