South-Central Section - 47th Annual Meeting (4-5 April 2013)

Session No. 34
Friday, 5 April 2013: 1:30 PM-5:30 PM
Classroom 102 (AT&T Center)

T6. Delving Deeper into Petrogenesis: Advances in Petrology and Geochronology with Applications to Tectonics

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

 

Jeffrey H. Marsh, David J. Young, Eric D. Kelly, Spencer Seman and Donggao Zhao, Advocates
Paper #
Start Time
34-1
1:30 PM
Withdrawn
1:50 PM
GEOCHEMICAL CHARACTERIZATION OF EOCENE AND OLIGOCENE VOLCANIC ASHES OF EAST AND CENTRAL TEXAS
HEINTZ, Mindi L.1, YANCEY, Thomas E.1, MILLER, Brent V.1 and GRIGSBY, Jeffry D.2, (1)Dept. of Geology & Geophysics, Texas A&M University, College Station, TX 77843, (2)Dept. of Geological Sciences, Ball State University, Muncie, IN 47304, miheintz@neo.tamu.edu
2:10 PM
INTEGRATED U-PB AGE AND HF ISOTOPES IN ZIRCON: A POWERFUL TOOL FOR PETROGENETIC STUDIES
FISHER, Christopher M. and VERVOORT, Jeffery D., School of the Environment, Washington State University, Pullman, WA 99164, chris.fisher@wsu.edu
2:40 PM
GEOCHRONOLOGY AND GEOCHEMISTRY OF VOLCANIC ROCKS FROM A LARGE RIFT SYSTEM IN SOUTHERN BRAZIL: PRELIMINARY DATA FROM THE CAMAQUã AND ITAJAí BASINS
BURDAKIN, Nicole J., MCDOWELL, Susanne M. and GUALDA, Guilherme, Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, nicole.j.burdakin@vanderbilt.edu
3:00 PM
PETROGENESIS OF TONALITIC-TRONDHJEMITIC MAGMAS AT MID- TO LOWER-CRUSTAL DEPTHS IN AN ARC-CONTINENT SUTURE:  A COMPARISON OF THE GEOCHRONOLOGY, GEOBAROMETRY, AND GEOCHEMISTRY OF THE DEEP CREEK AND ROUND VALLEY PLUTONS, WESTERN IDAHO
JEFFCOAT, C. Ryan, Department of Earth and Atmospheric Sciences, University of Houston, 312 Science and Research Building 1, Houston, TX 77204-5007, JOHNSON, Kenneth, Department of Natural Sciences, University of Houston-Downtown, 1 Main Street, Suite N813, Houston, TX 77002, SCHWARTZ, Joshua J., Department of Geological Sciences, California State University Northridge, 18111 Nordhoff Street, Northridge, CA 91330 and WOODEN, Joseph L., U.S.G.S.-Stanford Ion Probe Laboratory, Stanford, CA 94305, charles.jeffcoat@gmail.com
 
3:20 PM
Break
3:40 PM
EXAMINING EXHUMATION OF HIGH-PRESSURE ROCKS IN AN AEGEAN METAMORPHIC CORE COMPLEX: COMBINING STRUCTURAL ANALYSIS WITH GEO- AND THERMOCHRONOLOGY
SHIN, Timothy A., Department of Geological Sciences, University of Texas at Austin, Jackson School of Geosciences, Austin, TX 78712, SEMAN, Spencer, Jackson School of Geosciences, The University of Texas at Austin, Austin, TX 78712, STOCKLI, Daniel F., Department of Geological Sciences, University of Texas at Austin, Austin, TX 78712, CATLOS, Elizabeth J., Geological Sciences, University of Texas at Austin, Jackson School of Geosciences, Austin, TX 78712 and SOUKIS, Konstantinos, Dept. of Geology and Geoenvironment, University of Athens, Athens, Greece, timashin@gmail.com
4:00 PM
QUANTIFYING LOWER CRUSTAL DYNAMICS IN THE WESTERN GRENVILLE PROVINCE THROUGH INTEGRATED MULTI-SYSTEM GEOCHRONOLOGY
MARSH, Jeffrey H., Jackson School of Geosciences, University of Texas, 1 University Station C9000, Austin, TX 78712, jhmarsh@jsg.utexas.edu
4:20 PM
GARNET COMPOSITONAL ZONING AND EVALUATING EQUILIBRIUM IN PELITIC SCHIST: AN EXAMPLE FROM TOWNSHEND DAM, VT
STOWELL, Harold H.1, GATEWOOD, Matthew2, DRAGOVIC, Besim3, BAXTER, Ethan F.4, HIRSCH, David M.5 and BLOOM, Rose V.5, (1)Department of Geological Sciences, University of Alabama, Tuscaloosa, AL 35487, (2)Department of Geological Sciences, University of Alabama, Box 870338, Tuscaloosa, AL 35487, (3)Geosciences, Virginia Polytechnic Institute and State University, 4044 Derring Hall, Blacksburg, VA 24061, (4)Earth Sciences, Boston University, 685 Commonwealth Ave, Boston, MA 02215, (5)Geology, Western Washington University, 516 High St, Bellingham, WA 98225, hstowell@as.ua.edu
4:50 PM
UNEXPECTEDLY NARROW TRACE-ELEMENT DIFFUSION PROFILES IN NATURAL GARNETS: EFFECTS OF LIMITED NUCLEATION KINETICS?
KELLY, Eric D. and CARLSON, William D., Department of Geological Sciences, The University of Texas at Austin, 2275 Speedway C9000, Austin, TX 78712, Eric.Kelly@utexas.edu
5:10 PM
ELECTRON AND X-RAY IMAGING OF MINERAL ZONATION AND SYMPLECTITE IN MANTLE XENOLITHS FROM FANGSHAN, EASTERN CHINA
ZHAO, Donggao, Jackson School of Geosciences, University of Texas, Dept. of Geological Sciences, Austin, TX 78712 and XU, Xisheng, Department of Earth Sciences, Nanjing University, Nanjing, 210093, China, dzhao@jsg.utexas.edu
See more of: Technical Sessions