Cordilleran Section (104th Annual) and Rocky Mountain Section (60th Annual) Joint Meeting (19–21 March 2008)
Session No. 14 Thursday, 20 March 2008
8:00 AM-11:30 AM, University of Nevada-Las Vegas: Student Union 208C

S3. Mafic-Silicic Magmatism: Crystallization Histories, Magma Interactions, and Eruption Mechanisms I

Terry L. Spell and Eugene Smith, Presiding
 Paper #Start Time
 8:00 AM Introductory Remarks
14-18:05 AM MECHANISMS OF MAFIC DISAGGREGATION IN A CRYSTAL-RICH GRANITIC MUSH AT AZTEC WASH PLUTON, NV: BANIK, Tenley J., MILLER, Calvin F., and FURBISH, David Jon, Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, tenley.banik@vanderbilt.edu
14-28:25 AM THE ROLE OF BASALT IN ERUPTION OF QUATERNARY RHYOLITES NORTH OF THE YELLOWSTONE CALDERA: SPELL, Terry L., WOOTON, Katie, NASTANSKI, Nicole M., and SMITH, Eugene I., Department of Geoscience, Univ of Nevada, Las Vegas, 4505 Maryland Parkway, Las Vegas, NV 89154, terry.spell@unlv.edu
14-38:45 AM SMALL PROPORTIONS OF REFILL BUT LARGE PROPORTIONS OF MIXING BETWEEN MAFIC AND SILICIC MAGMAS IN SHALLOW MAGMA CHAMBERS: BINDEMAN, Ilya, Geological Sciences, University of Oregon, Eugene, OR 97403, bindeman@uoregon.edu
14-49:05 AM THE PHYSICAL IMPACT OF MAFIC REPLENISHMENTS ON SILICIC MAGMA CHAMBERS IN THE VINALHAVEN INTRUSIVE COMPLEX, MAINE, USA: WIEBE, Robert A., Earth and Environment, Franklin and Marshall College, Lancaster, PA 176043003, bwiebe@fandm.edu, HAWKINS, David P., Department of Geosciences, Denison University, Granville, OH 43023, SNYDER, Don, RAND Corporation, 1776 Main Street, Santa Monica, CA 90407-2138, and WARK, David A., GE Global Research, One Research Circle, Niskayuna, NY 12309
14-59:25 AM IN SITU MECHANICAL AND DIFFUSIVE MIXING IN AZTEC WASH PLUTON, NV: EVIDENCE FROM ZIRCON TI THERMOMETRY AND ELEMENTAL ZONING: BROMLEY, S. Ashley1, BLEICK, Heather A.1, ERICKSEN, Shelly M.2, MILLER, Calvin F.1, MILLER, Jonathan S.2, CLAIBORNE, Lily L.1, WOODEN, Joseph L.3, and MAZDAB, Frank K.3, (1) Department of Earth and Environmental Sciences, Vanderbilt University, Nashville, TN 37235, s.ashley.bromley@vanderbilt.edu, (2) Department of Geology, San Jose State University, San Jose, CA 95192-0102, (3) USGS-Stanford Ion Microprobe Facility, Green Building, Rm 89, 367 Panama Street, Stanford, CA 94305-2220
 9:45 AM Break
14-610:05 AM RETHINKING HOW WE MAP AND DATE PLUTONS: JOHN MUIR INTRUSIVE SUITE OF THE SIERRA NEVADA BATHOLITH: COLEMAN, Drew S., Department of Geological Sciences, University of North Carolina, CB# 3315, Chapel Hill, NC 27599, dcoleman@email.unc.edu, GRACELY, John T., Department of Geological Sciences, Univ of North Carolina, CB# 3315, Chapel Hill, NC 27599-3315, GASCHNIG, Richard, School of Earth and Environmental Sciences, Washington State University, P.O. Box 642812, Pullman, WA 99164-2812, GLAZNER, Allen F., Dept. of Geological Sciences, Univ. of North Carolina, Chapel Hill, NC 27599-3315, and BARTLEY, John M., Department of Geology and Geophysics, Univ of Utah, 135 S. 1460 E., Rm 719, Salt Lake City, UT 84112
14-710:25 AM MODELING PREDICTS THERMAL EVOLUTION, GEOCHEMICAL, TEXTURAL AND FIELD RELATIONS OF THE ZONED INTRUSIVE SUITES OF THE SIERRA NEVADA BATHOLITH, CALIFORNIA: DAVIS, Jesse, Department of Geological Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, davisjw@email.unc.edu, COLEMAN, Drew, Department of Geological Sciences, University of North Carolina, CB# 3315, Chapel Hill, NC 27599, and BARTLEY, John, Department of Geology and Geophysics, Univ of Utah, 135 S. 1460 E., Rm 719, Salt Lake City, UT 84112
14-810:45 AM DECLINING INTERACTIONS BETWEEN MAFIC AND FELSIC MAGMAS DURING DEVELOPMENT OF THE MOUNT WHITNEY INTRUSIVE SUITE, SIERRA NEVADA, CALIFORNIA: HIRT, William H., Natural Sciences, College of the Siskiyous, 800 College Avenue, Weed, CA 96094, hirt@siskiyous.edu and COLEMAN, Drew S., Geological Sciences, University of North Carolina, 325 Mitchell Hall, CB#3315, Chapel Hill, NC 27599
14-911:05 AM VARIABLE CONTROLS ON OPEN-SYSTEM MODIFICATION OF CONTINENTAL ARC MAGMA; COPAHUE-CAVIAHUE ERUPTIVE COMPLEX, NEUQUEN ARGENTINA: TODD, Erin, Earth and Planetary Sciences, University of California, Santa Cruz, 1156 High St, Santa Cruz, CA 95064, etodd@pmc.ucsc.edu

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