North-Central Section - 42nd Annual Meeting (24–25 April 2008)

Session No. 4
Thursday, 24 April 2008: 7:55 AM-12:00 PM

T1. Volatiles in Magmas: From Source to Surface

 

James Walker and Jim Brophy, Advocates
Paper #
Start Time
 
7:55 AM
Introductory Remarks
1
8:00 AM
VOLATILES IN MAGMAS: FROM SOURCE TO SURFACE
FISCHER, Tobias P., Earth and Planetary Sciences, Univ of New Mexico, 200 Yale Blvd NE, Northrop Hall, Albuquerque, NM 87131, fischer@unm.edu, fischer@unm.edu
2
8:20 AM
CONSTRAINTS ON MIXED-FLUID (H2O AND CO2) SOLUBILITY IN ARC BASALTS: NEW EXPERIMENTS REQUIRE NEW MODELS
ROGGENSACK, Kurt, School of Earth and Space Exploration, Arizona State University, PO Box 871404, Tempe, AZ 85287-1404, MOORE, Gordon, Department of Chemistry and Biochemistry, Arizona State University, Box 1604, Tempe, AZ 85287-1604 and HERVIG, Richard L., Arizona State Univ, PO Box 871704, Tempe, AZ 85287-1704, kurt.roggensack@asu.edu, kurt.roggensack@asu.edu
3
8:40 AM
CONSTRAINTS ON THE CENTRAL AMERICAN SLAB FLUID COMPOSITION FROM ARC MELT INCLUSIONS AND PHENOCRYSTS
WADE, Jennifer A., Earth Sciences, Boston University, 675 Commonwealth Ave, Boston, MA 02215 and PLANK, Terry A., Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, volcanicjenn@gmail.com, volcanicjenn@gmail.com
4
9:00 AM
VOLATILE CONTENTS AND DEGASSING OF PRIMITIVE MAGMAS FROM THE WESTERN MEXICAN VOLCANIC BELT
MARIA, Anton H., Geology and Physics, Univ Southern Indiana, 8600 University Blvd, Evansville, IN 47712 and LUHR, James F., Smithsonian Inst, NHB-119, Washington, DC 20560-0001, ahmaria@usi.edu, ahmaria@usi.edu
5
9:20 AM
PYROXENE AND PLAGIOCLASE COMPOSITIONS AS AN INDICATOR OF MAGMATIC WATER CONCENTRATIONS: TWO HYGROMETERS
LANGE, Rebecca A., Ann Arbor, MI 48109-1005 and FREY, Holli M., Department of Geology, Union College, 807 Union St, Schenectady, NY 12308-1307, becky@umich.edu, becky@umich.edu
 
9:40 AM
Break
6
10:00 AM
DEGASSING-INDUCED CRYSTALLIZATION IN PERIPHERAL, CRYSTAL-POOR BASALTIC ANDESITE, ANDESITE AND DACITE FLOWS IN WESTERN MEXICO
CRABTREE, Stephen M., Geological Sciences, University of Michigan, 1100 North University Ave, Ann Arbor, MI 48109-1005 and LANGE, Rebecca A., Department of Geological Sciences, Univ Michigan, 1100 North University Ave, Ann Arbor, MI 48109-1005, smcrabtr@umich.edu, smcrabtr@umich.edu
7
10:20 AM
THE VISCOSITY OF HYDROUS DACITIC LIQUIDS: IMPLICATIONS FOR THE RHEOLOGY OF EVOLVING SILICIC MAGMAS
WHITTINGTON, Alan1, HELLWIG, Bridget1, BEHRENS, Harald2, JOACHIM, Bastian2, STECHERN, André2 and VETERE, Francisco3, (1)Department of Geological Sciences, University of Missouri, Columbia, MO 65211, (2)Institut für Mineralogie, Universität Hannover, Callinstraße 3, Hannover, D-30167, Germany, (3)Istituto Nazionale di Geofisica e Vulcanologia, Via di Vigna Murata 605, Roma, 00143, Italy, whittingtona@missouri.edu, whittingtona@missouri.edu
8
10:40 AM
PHENOCRYST ZONING: FRACTURE VERSUS RESORPTION
ANDERSON, Alfred T., Geophysical Sciences, University of Chicago, Chicago, IL 60637, canderso@uchicago.edu, canderso@uchicago.edu
9
11:00 AM
GOLD, COPPER AND IRON PARTITIONING BETWEEN VAPOR, BRINE AND MELT
FRANK, Mark R., Department of Geology and Environmental Geosciences, Northern Illinois University, Davis Hall, Room 312, DeKalb, IL 60115, mfrank@niu.edu, mfrank@niu.edu
10
11:20 AM
VOLCANIC SOIL GAS DIFFUSING AT ZUNIL-CERRO QUEMADO-SANTA MARIA VOLCANIC COMPLEX, GUATEMALA
LOPEZ, Dina L.1, WALKER, James2, BARAHONA, Francisco3, CARTAGENA, Rafael3, FUNES, Carlos Renan3, FINIZOLA, Anthony4 and LAURA, Bennati4, (1)Geological Sciences, Ohio Univ, 316 Clippinger Laboratories, Athens, OH 45701, (2)Department of Geology and Geophysics, Northern Illinois Univ, DeKalb, IL 61115, (3)Physics, Universidad de El Salvador, San Salvador, none, El Salvador, (4)Laboratoire Géosciences Réunion, 97715 Saint Denis cedex 9, La Réunion, none, France, lopezd@ohio.edu, lopezd@ohio.edu
 
11:40 AM
Concluding Remarks
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