GSA Annual Meeting in Seattle, Washington, USA - 2017

Session No. 325
Wednesday, 25 October 2017: 1:30 PM-5:30 PM
Yakima 1 (The Conference Center)

D51. Geophysics/Geodynamics Session

Kent C. Condie, Ting Chen and Paul Winberry, Chairs
1:30 PM
RECOGNIZING THE ONSET OF PLATE TECTONICS ON EARTH: THE APPEARANCE OF WIDESPREAD ENRICHED MANTLE BETWEEN 2 AND 3 GA?
CONDIE, Kent C., Earth & Environmental Science, New Mexico Tech, 801 LeRoy Place, Socorro, NM 87801 and SHEARER, Charles K., Institute of Meteoritics, University of New Mexico, MSC03 2050, 1 University of New Mexico, Albuquerque, NM 87131-0001, kent.condie@nmt.edu
1:45 PM
PRIMORDIAL FRACTIONATION OF HIGH FIELD STRENGTH ELEMENTS (HFSE) ON STAGNANT-LID PLANET MANTLES
SHEARER, Charles K., Institute of Meteoritics, University of New Mexico, MSC03 2050, 1 University of New Mexico, Albuquerque, NM 87131-0001 and CONDIE, Kent C., Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, Socorro, NM 87801, cshearer@unm.edu
325-3
2:00 PM
Withdrawn
2:15 PM
GEOLOGICAL EVOLUTION OF THE TERRESTRIAL PLANETARY BODIES: CLUES TO THE ORIGIN OF PLATE TECTONICS (Invited Presentation)
HEAD, James W., Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI 02912, James_Head@brown.edu
2:30 PM
PLUME-INDUCED SUBDUCTION: LOCALIZED ON VENUS NOW, HELPING THE ONSET OF PLATE TECTONICS ON EARTH IN THE ARCHEAN
DAVAILLE, A., FAST (CNRS / Univ. Paris-Sud), Bat.502, rue Andre Riviere, Campus Universitaire, Orsay, 91400, France and SMREKAR, S., Jet Propulsion Laboratory (NASA / CALTECH), 4800 Oak Grove Drive, Pasadena, CA 91109, davaille@fast.u-psud.fr
2:45 PM
THE ROLE OF MANTLE THERMAL STATE IN THE INITIATION OF PLATE TECTONICS
FOLEY, Bradford J., Department of Geosciences, Pennsylvania State University, Penn State University, 307 Deike Building, University Park, PA 16802, bjf5382@psu.edu
3:00 PM
MECHANISMS OF SHEAR WAVE GENERATIONS DURING UNDERGROUND EXPLOSIONS IN JOINTED ROCK
VOROBIEV, Oleg, Lawrence Livermore National Laboratory, Physical and Life Sciences Directorate, P.O.Box 808, M/S L-105, Livermore, CA 94551, vorobiev1@llnl.gov
 
3:15 PM
Break
3:30 PM
GEOPHYSICAL CHARACTERIZATION OF THE SOURCE PHYSICS EXPERIMENT SITE WITH THE LARGE-N SEISMIC ARRAY
CHEN, Ting, Los Alamos National Laboratory, Los Alamos, NM 87545, SNELSON, Catherine M., Los Alamos National Laboratory, Earth and Environment Sciences Division, PO Box 1663, MS F665, Los Alamos, NM 87545 and MELLORS, Robert, Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA 94551, tchen@lanl.gov
325-9
3:45 PM
Withdrawn
4:00 PM
A CONCEPTUAL MODEL FOR SEASONAL THAW DYNAMICS OF AN AUFEIS FEATURE INFERRED FROM SURFACE GEOPHYSICAL METHODS
TERRY, Neil1, GRUNEWALD, Elliot2, BRIGGS, Martin A.3, KASS, Andrew M.4, HURYN, Alexander5, GOOSEFF, Michael6, HENDRICKSON, Patrick J.7 and LANE, John W.3, (1)Branch of Geophysics, U.S. Geological Survey, 11 Sherman Place, Storrs Mansfield, CT 06269, (2)Vista Clara, Inc, 12201 Cyrus Way Ste. 104, Mukilteo, WA 98275, (3)Office of Groundwater, Branch of Geophysics, U.S. Geological Survey, Storrs, CT 06279, (4)Department of Geoscience, Aarhus University, Aarhus, 8000, Denmark, (5)Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487, (6)Civil, Environmental & Architectural Engineering, University of Colorado Boulder, Boulder, CO 80309, (7)Civil, Environmental, and Architectural Engineering, University of Colorado, Boulder, CO 80309, elliot@vista-clara.com
4:15 PM
FIRN AQUIFER STRUCTURE IN SOUTHEASTERN GREENLAND FROM ACTIVE SOURCE SEISMOLOGY
SCHMERR, Nicholas C.1, MONTGOMERY, Lynn2, FORSTER, Richard3, KOENIG, Lora4, LEGCHENKO, Anatoly5, LIGTENBERG, Stefan6, MIÈGE, Clément3, MILLER, Olivia Leigh7 and SOLOMON, D. Kip7, (1)Department of Geology, University of Maryland, College Park, MD 20742, (2)Atmospheric and Ocean Sciences, University of Colorado, Boulder, CO 80309-0311, (3)Geography Department, University of Utah, Salt Lake City, UT 84112, (4)National Snow and Ice Data Center, Boulder, CO 80309, (5)Institut des Geosciences de l'Environnement, Grenoble, 38 058, France, (6)Institute for Marine and Atmospheric research, Utrecht, 3508, Netherlands, (7)Geology and Geophysics, University of Utah, Frederick Albert Sutton Building, 115 S. 1460 E. Rm 383, Salt Lake City, UT 84112, nschmerr@umd.edu
4:30 PM
USING REPEATING GLACIAL EARTHQUAKES TO STUDY TEMPORAL VARIABILITY IN SUBGLACIAL CONDITIONS
WINBERRY, J. Paul1, HUERTA, Audrey1, CONWAY, Howard2, ANANDAKRISHNAN, Sridhar3, ASTER, Richard4, KOUTNIK, Michelle2, NYBLADE, Andrew A.5 and WIENS, Douglas6, (1)Geological Sciences, Central Washington University, 400 East University Way, Ellensburg, WA 98926, (2)Department of Earth and Space Sciences, University of Washington, Box 351310, 070 Johnson Hall, Seattle, WA 98195, (3)Dept. of Geosciences and EESI, Pennsylvania State University, 442 Deike Bldg, University Park, PA 16802-2711, (4)Department of Geosciences, Colorado State University, 1482 Campus Delivery, Fort Collins, CO 80523-1482, (5)Geosciences Dept, Pennsylvania State University, 447 Deike Bldg, University Park, PA 16802, (6)Department of Earth and Planetary Sciences, Washington University in St Louis, One Brookings Dr., Campus Box 1169, St Louis, MO 63112, winberry@geology.cwu.edu
4:45 PM
A VARIED SUBGLACIAL LANDSCAPE UNDER THWAITES GLACIER, WEST ANTARCTICA
CHRISTIANSON, Knut1, HOLSCHUH, Nicholas D.2, PADEN, John3, SPRICK, Jordan3, PETERS, Leo4, ANANDAKRISHNAN, Sridhar5 and ALLEY, Richard B.6, (1)Earth and Space Sciences, University of Washington, Seattle, WA, (2)Earth and Space Sciences, University of Washington, Johnson Hall Rm-070, Box 351310, University of Washington, Seattle, WA 98195-1310, (3)Electrical Engineering and Computer Science, University of Kansas, Lawrence, KS 66046, (4)Centre for Oceans and Cryosphere, University of Tasmania, Hobart, (5)Dept. of Geosciences and EESI, Pennsylvania State University, 442 Deike Bldg, University Park, PA 16802-2711, (6)Department of Geosciences, The Pennsylvania State Univ, Deike Builiding, University Park, PA 16802, knut@uw.edu
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