276 D55. From Argon to Zircon: New Approaches to Understanding Crustal Magmatism

Wednesday, 7 November 2018
1:30 PM - 5:30 PM
Room 240-241

Presentations

• 1:40 PM
  PETROCHRONOLOGY, GEOPHYSICS, AND GEOMORPHOLOGY REVEAL DYNAMICS OF AN EXTENSIVE, THERMALLY HETEROGENOUS, SHALLOW SILICIC MAGMA SYSTEM BENEATH LAGUNA DEL MAULE VOLCANIC FIELD, SOUTHERN ANDES
  Brad Singer, University of Wisconsin-Madison, Madison, WI and Nathan Andersen, University of Oregon, Eugene, OR and Helene Le Mevel, Carnegie Institution of Washington, Washington DC, WA and Clifford Thurber, University of Wisconsin-Madison, Madison, WI and Crystal Wespestad, Bloomington, IN
  318188 (Technical Sessions)
• 1:55 PM
  ARE PLUTONS IGNEOUS OR METAMORPHIC ROCKS? YES. THEY ARE MELTAMORPHIC
  Drew S. Coleman, University of North Carolina, Chapel Hill, NC and Allen F. Glazner, University of North Carolina at Chapel Hill, Chapel Hill, NC and John Bartley, University of Utah, Salt Lake City, UT and Alan Boudreau, Duke University, Durham, NC
  323014 (Technical Sessions)
• 2:10 PM
  DOES SIZE MATTER? WHAT VARIABLES CONTROL THE THERMAL HISTORY OF MAGMAS?
  Kari M. Cooper, UC Davis, Davis, CA and Kevin L. Schrecengost, UC Davis, Davis, CA and Tyler Schlieder, UC Davis, Davis, CA and Richard W. Bradshaw, Oregon State University, Corvallis, OR and Adam Kent, Oregon State University, Corvallis, OR and Christian Huber, Brown University, Providence, RI
  321511 (Technical Sessions)
• 2:40 PM
  MASSIVE, RAPID MELTING OF THE CRUST AND THE GENERATION OF DISEQUILIBRIUM AND EQUILIBRIUM MELTING FACIES, MCMURDO DRY VALLEYS, ANTARCTICA
  Ryan Currier, University of Wisconsin Green Bay, Green Bay, WI and Tim P. Flood, Saint Norbert College, De Pere, WI
  323684 (Technical Sessions)
• 2:55 PM
  USING NOBLE GASES TO DETERMINE MAGMA SOURCES IN THE WEST ANTARCTIC RIFT SYSTEM
  Erica Lynn Maletic, The Ohio State University, Columbus, OH and Thomas H. Darrah, The Ohio State University, Columbus, OH
  323698 (Technical Sessions)
• 3:10 PM
  IS MAFIC RECHARGE NECESSARY TO TRIGGER ANDESITIC VOLCANIC ERUPTIONS? NEW INSIGHTS FROM FELDSPAR AND PYROXENE THERMOBAROMETRY
  Bryant Platt, Dept. of Earth and Env. Science, Clovis, CA and Keith Putirka, California State University - Fresno, Fresno, CA
  324867 (Technical Sessions)
• 3:25 PM
  CONTINUOUSLY CHANGING COMPOSITION OF QUARTZ-ALBITE SATURATED MELTS FROM 819 TO 330°C IN THE NA2O-AL2O3-SIO2-H2O SYSTEM AT 0.1 GPA
  Craig C. Lundstrom, Univ of Illinois, Urbana, IL
  324473 (Technical Sessions)
• 3:55 PM
  THE USE OF MIXING MODELS TO CONSTRAIN ZIRCON CRYSTALLIZATION HISTORIES
  Holli Frey, Union College, Schenectady, NY and Matthew R.F. Manon, Union College, Schenectady, NY
  324500 (Technical Sessions)
• 4:25 PM
  COMBINED MAJOR AND TRACE ELEMENT GEOCHEMISTRY AND ZIRCON U/PB GEOCHRONOLOGY OF THE ERTSBERG PLUTON, ERTSBERG-GRASBERG MINING DISTRICT, PAPUA, INDONESIA: MAGMA CHAMBER RECHARGE AND MIXING
  Jacob Makis, University of Texas at Austin, Austin, TX and Stephanie Wafforn, University of Texas at Austin, Austin, TX and Clyde Leys, PT Freeport Indonesia, Timika and Sugeng Widodo, PT Freeport Indonesia, Timika and Daniel F. Stockli, University of Texas at Austin, Austin, TX and Mark Cloos, University of Texas at Austin, Austin, TX
  322684 (Technical Sessions)
• 4:40 PM
  ISOLATION AND BREAK UP OF A MICROCONTINENT IN THE GULF OF CALIFORNIA: FAULT STRUCTURE AND VOLCANIC GEOCHEMISTRY
  Leah Sabbeth, California Institute of Technology, Pasadena, CA and Joann Stock, California Institute of Technology, Pasadena, CA and Nathan D. Brown, University of California, Los Angeles, Los Angeles, CA and Seulgi Moon, University of California, Los Angeles, Los Angeles, CA and Arturo Martin-Barajas, CICESE, San Diego, CA and Adriana Piña-Páez, Universidad de Sonora, Hermosillo, SO
  323305 (Technical Sessions)
• 4:55 PM
  UNVEILING MAGMATIC HISTORY IN THE ASH: USING BENTONITES AS A TIME SENSITIVE PROXY FOR THE EMPLACEMENT OF THE IDAHO BATHOLITH
  Jeffrey Hannon, Cincinnati, OH and Warren Huff, University of Cincinnati, Cincinnati, OH
  315788 (Technical Sessions)