V54A:
Transport of Volatiles from Mantle to Surface: Insights on Diffusion, Exsolution, and Migration of Fluids in Magmatic Environments from Natural Samples and Experiments II


Session ID#: 8051

Session Description:
The transfer of volatiles (H2O, CO2, Cl, S, F) between reservoirs within the mantle, subducted oceanic crust and continental crust 1) influences magmatic processes, 2) modifies trace element and isotope signatures and 3) may change redox conditions. The physical and chemical properties of magmas are significantly influenced by diffusion and exsolution of volatiles during their ascent from the upper mantle through the crust to the surface. For instance, magma degassing may initiate volcanic eruptions, modulates magma viscosity (especially along the conduit) and, thus, affects the eruptive style. This session seeks insights from natural and laboratory observations involving volatile transfer and degassing. Cross-disciplinary studies (e.g. petrology with geophysics and/or geochemistry) providing temporal constraints, and/or involving volatile solubility, fluid and melt composition, isotope signatures and redox conditions are especially welcome.
Primary Convener:  Sarah B. Cichy, Arizona State University, Tempe, AZ, United States
Conveners:  Adrian Fiege, Univ of Michigan, Ann Arbor, MI, United States and Thomas Giachetti, University of Oregon, Eugene, United States
Chairs:  Sarah B. Cichy, Arizona State University, Tempe, AZ, United States and Thomas Giachetti, University of Oregon, Earth Sciences, Eugene, United States
OSPA Liaison:  Thomas Giachetti, University of Oregon, Earth Sciences, Eugene, United States

Cross-Listed:
  • NH - Natural Hazards
  • NS - Near Surface Geophysics
Index Terms:

1065 Major and trace element geochemistry [GEOCHEMISTRY]
3699 General or miscellaneous [MINERALOGY AND PETROLOGY]
7280 Volcano seismology [SEISMOLOGY]
8499 General or miscellaneous [VOLCANOLOGY]

Abstracts Submitted to this Session:

Why Are Andesitic Eruptions Often More Violent Than Basaltic Ones? -- Insights from 4D X-ray Tomographic Microscopy (79015)
Don R Baker1, Francesco Brun2, Lucia Mancini2, Margherita Polacci3 and Julie Fife4, (1)McGill University, Earth and Planetary Sciences, Montreal, QC, Canada, (2)Elettra - Sincrotrone Trieste, Trieste, Italy, (3)National Institute of Geophysics and Volcanology, Rome, Italy, (4)Paul Scherrer Institute, Swiss Light Source, Villingen, Switzerland
Gas-driven filter pressing in magmas: insights into in-situ melt segregation from crystal mushes (65595)
Mattia Pistone, Smithsonian Institution - National Museum of Natural History, Mineral Sciences, Washington, DC, United States, Fabio Arzilli, Istituto Nazionale di Geofisica e Vulcanologia, Pisa, Italy; Elettra - Sincrotrone Trieste, Basovizza (Trieste), Italy, Katherine J Dobson, Ludwig Maximilians University of Munich, Munich, Germany, Benoit Cordonnier, ESRF European Synchrotron Radiation Facility, Grenoble, France, Eric Reusser, ETH-Zurich, Zurich, Switzerland, Peter Ulmer, ETH Swiss Federal Institute of Technology Zurich, Department of Earth Sciences, Zurich, Switzerland, Federica Marone, Swiss Light Source - PSI, Villigen, Switzerland, Alan G Whittington, University of Texas at San Antonio, Heat And Mass Transfer & Experimental Rheology (HAMsTER) lab, Earth and Planetary Sciences, San Antonio, United States, Lucia Mancini, Stanford Earth Sciences, Stanford, CA, United States, Julie Fife, Paul Scherrer Institute, Swiss Light Source, Villingen, Switzerland and Jonathan David Blundy, University of Oxford, Department of Earth Sciences, Oxford, United Kingdom
CO2 contents of basaltic arc magmas from the southern Cascades: Corrections for shrinkage bubble effects and implications for crustal storage (Invited) (58235)
Kristina J Walowski, University of Oregon, Eugene, United States; University of Edinburgh, School of Geosciences, Edinburgh, United Kingdom, Paul J Wallace, University of Oregon, Department of Earth Sciences, Eugene, United States, Ellen Marie Aster, University of Oregon, Eugene, OR, United States and Michael A Clynne, USGS California Water Science Center Menlo Park, Menlo Park, CA, United States
Reconstructing Final H2O Contents of Hydrated Rhyolitic Glasses: Insights into H2O Degassing and Eruptive Style of Silicic Submarine Volcanoes (Invited) (58786)
Iona M McIntosh1, Alex RL Nichols1, Kenichiro Tani2 and Edward W Llewellin3, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)National Museum of Nature and Science, Department of Geology and Paleontology, Ibaraki, Japan, (3)University of Durham, Department of Earth Sciences, Durham, United Kingdom
The Dissolution and Exsolution of Cl-Bearing Fluids in Mafic to Felsic Magmas (Invited) (48131)
James D Webster, American Museum of Natural History, Earth and Planetary Sciences, New York, NY, United States
Volatile Exsolution Experiments: Sampling Exsolved Magmatic Fluids (76271)
Brian Tattitch, The University of Western Australia, Centre for Exploration Targeting, Crawley, Australia and Jon D Blundy, University of Bristol, School of Earth Sciences, Bristol, United Kingdom
Formation of redox gradients during magma-magma mixing (66208)
Philipp Ruprecht1, Adrian Fiege2 and Adam Charles Simon2, (1)Lamont Doherty Earth Obs., Palisades, United States, (2)University of Michigan Ann Arbor, Department of Earth and Environmental Sciences, Ann Arbor, MI, United States
Magma surge from the mantle: the Father’s Day Eruption, Kīlauea Volcano, Hawai‘i (73831)
Lois Claire Salem, University of Cambridge, Earth Sciences, Cambridge, United Kingdom, Marie Edmonds, University of Cambridge, Department of Earth Sciences, Cambridge, United Kingdom, John Maclennan, University of Cambridge, Cambridge, United Kingdom, Bruce F Houghton, University of Hawaiʻi at Mānoa, Department of Earth and Planetary Sciences, Honolulu, United States and Michael P Poland, Cascades Volcano Observatory, U. S. Geological Survey, Vancouver, WA, United States

See more of: Volcanology, Geochemistry and Petrology