V52A:
Under Pressure: Understanding the Storage, Activation, and Transport Processes in Magmatic Systems II

Submit an Abstract to this Session



Session ID#: 35734

Session Description:
The dynamics of magmatic systems is strongly influenced by pressure. Pressure controls the circulation of magma; the opening of fractures in the crust; the exsolution of volatiles; the texture and composition of crystals; and, of course, the onset, duration, and characteristics of volcanic eruptions. Pressure changes also induce variations in monitoring data (e.g., ground deformation, seismicity, gravity, gas emissions) used to forecast eruptions and mitigate volcanic hazard. This session aims to bring together those who address the pressure of magmatic systems from storage to eruption by using field or geophysical observations, and theoretical, experimental or numerical models. We welcome contributions addressing magma dynamics, its relationships to physical and chemical properties, and its bearing on the geochemical, geophysical and petrological observables recorded at the surface. This session is process-oriented, and it aims to trigger cross-disciplinary interactions, to fully unravel the complex processes beneath, within and upon volcanoes.
Primary Convener:  Társilo Girona, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States
Conveners:  Hélène Balcone-Boissard, Sorbonne Université - ISTeP, Paris, France, Helena Albert, University of Barcelona, Department of Mineralogy, Petrology and Applied Geology, Barcelona, Spain and Chiara Paola Montagna, INGV National Institute of Geophysics and Volcanology, Pisa, Italy
Chairs:  Társilo Girona, Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, Hélène Balcone-Boissard, Sorbonne Université - ISTeP, Paris, France and Helena Albert, University of Barcelona, Department of Mineralogy, Petrology and Applied Geology, Barcelona, Spain
OSPA Liaison:  Helena Albert, University of Barcelona, Department of Mineralogy, Petrology and Applied Geology, Barcelona, Spain
Index Terms:

1036 Magma chamber processes [GEOCHEMISTRY]
8414 Eruption mechanisms and flow emplacement [VOLCANOLOGY]
8419 Volcano monitoring [VOLCANOLOGY]
8439 Physics and chemistry of magma bodies [VOLCANOLOGY]

Abstracts Submitted to this Session:

Long-times series of infrasonic records at open-vents volcanoes (Yasur volcano, Vanuatu, 2003-2014): the remarkable temporal stability of magma viscosity (Invited) (234354)
Sylvie Vergniolle1, Viviane Souty2, Christelle Zielinski1, Philipson Bani3, Alexis LE Pichon4, Michel Lardy5, Philippe Millier6, Pascal Herry7, Sylvain Todman8 and Esline Garaebiti8, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Institut de Physique du Globe de Paris, Equipe de Dynamique des fluides geologiques, Paris, France, (3)IRD, Laboratoire Magma et volcans, Nouméa, New Caledonia, (4)CEA Commissariat à l'Energie Atomique DAM, Arpajon Cedex, France, (5)Institut de Recherche pour le Developpement, Noumea, New Caledonia, (6)Commissariat a l’Energie Atomique, Bruyeres le chatel, France, (7)CEA, DAM, DIF, Arpajon, France, (8)Vanuatu Meteorology and Geohazards Department, Port Vila, Vanuatu
Seasonal gravity change at Yellowstone caldera (219214)
Michael P Poland, USGS Cascades Volcano Observatory, Vancouver, WA, United States and Elske de Zeeuw - van Dalfsen, Royal Netherlands Meteorological Institute, De Bilt, Netherlands
Continuous monitoring of a magma chamber’s pressure changes using geodetic data: Time-dependent inversion with Ensemble Kalman Filter (EnKF) (213832)
Hiroshi Munekane, Geospatial Information Authority of Japan, Ibaraki, Japan and Jun Oikawa, Univ Tokyo, Tokyo, Japan
Constraints on Pressure-Driven Flow Beneath Askja Volcano, Iceland, from Microgravity and InSAR Measurements (288226)
Andrew J Hooper1, Jeanne M Giniaux2, Stephanie Dumont3, Marco Bagnardi1, Vincent Drouin4 and Freysteinn Sigmundsson5, (1)University of Leeds, COMET, School of Earth and Environment, Leeds, United Kingdom, (2)University of Leeds, COMET, School of Earth and Environment, Leeds, LS2, United Kingdom, (3)Universidade da Beira Interior, SEGAL (UBI/IDL), Covilhã, Portugal, (4)University of Iceland, Nordic Volcanological Center, Institute of Earth Sciences, Reykjavik, Iceland, (5)University of Iceland, Institute of Earth Sciences, Nordic Volcanological Center, Reykjavik, Iceland
Timescales of Conduit Development and Magma Ascent in Rhyolitic Caldera-Forming Eruptions (Invited) (236723)
Myers Madison1, Paul J Wallace2, Colin J N Wilson3, James M Watkins2 and Yang LIU4, (1)Montana State University, Bozeman, United States, (2)University of Oregon, Department of Earth Sciences, Eugene, United States, (3)Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, New Zealand, (4)JPL/NASA/Caltech, Pasadena, CA, United States
Basaltic scoria fallout deposits from Ambrym volcano (Vanuatu archipelago): Textural and geochemical evidence of plinian eruptive styles (269132)
Hélène Balcone-Boissard, Sorbonne Université - ISTeP, Paris, France, Georges Boudon, Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, Paris, France and Pablo Poulain, Université de Paris, Institut de Physique du Globe, France, Paris Cedex 05, France
Controls on the organization of the plumbing system of subduction volcanoes : the roles of volatiles and edifice load (270370)
Alberto M. Roman1, Olga Bergal-Kuvikas2, Nikolai Shapiro1, Benoit Taisne3, Evgenii Gordeev4 and Claude P Jaupart5, (1)Institut de Physique du Globe de Paris, Paris, France, (2)Nanyang Technological University, Earth Observatory of Singapore, Singapore, Singapore, (3)Nanyang Technological University, Asian School of the Environment, Singapore, Singapore, (4)Institute of Volcanology and Seismology, Petropavlovsk-Kamchatsky, Russia, (5)Université de Paris, Institut de Physique du Globe de Paris (IPGP), UMR 7154, Paris, France
Modulation of magmatic processes by carbon dioxide (240014)
Luca Caricchi, University of Geneva, Department of Earth Science, Geneva, Switzerland, Tom Sheldrake, University of Geneve, Earth Sciences, Geneve, Switzerland and Jon D Blundy, University of Bristol, School of Earth Sciences, Bristol, United Kingdom

See more of: Volcanology, Geochemistry and Petrology