Outline of Session

   

Solid Earth Sciences(S) / Volcanology(VC) /  **International Session
S-VC11 Volatiles and volcanoes: the role of volatiles in determining how and when volcanoes erupt


Short title Volatiles and volcanoes
Oral presentation
Date/Room/Chair
May 24 AM1 (09:00 - 10:45) A04 Atsushi Toramaru  / Alexander Nichols 
May 24 AM2 (11:00 - 12:45) A04 Alexander Nichols  / Iona McIntosh 
May 24 PM1 (14:15 - 15:00) A04 Iona McIntosh  / Atsushi Toramaru 
Poster presentation
Date/Room
May 24 (Core Time 18:15 - 19:30) Convention Hall
Contact Iona McIntosh
Email i.m.mcintosh@jamstec.go.jp
Convener Iona McIntosh  / Atsushi Toramaru  / Alexander Nichols 
Scope The volatile content of magma is a key factor in determining the eruption style of a volcano. Dissolved volatiles such as H2O, CO2, S and F etc. affect melt viscosity and other physical properties, while volatile exsolution further modifies magma rheology and drives magma ascent via the nucleation and growth of bubbles. Volatiles, melt viscosity and bubble growth dynamics are thus interdependent parameters that directly affect physical eruption mechanisms such as style and depth of magma fragmentation. This session will explore the relationship between volatiles and magmatic processes, from source to surface and micro- to macro-scale, by examining how magmatic volatile contents, physical controls on volatile exsolution, dynamics of bubble growth, development of degassing pathways, and surface gas emissions relate to physical eruption mechanisms, and what evidence for these can be found in eruption products and geophysical and geochemical observational records. We encourage submissions from a broad range of approaches, including geochemical analyses, experimental studies, numerical modelling and field observations, and particularly encourage presentations of new investigative techniques.
Notes  


Time Presentation No Title Author Presenter Abstract
Oral Presentation   May 24 AM1 (09:00-10:45) A04                              to the top
09:00 - 09:15 SVC11-01 The density and the compressibility model of hydrous silicate melts at crustal and upper mantle conditions UEKI, Kenta UEKI, Kenta English
09:15 - 09:30 SVC11-02 Effect of the bonding and the speciation of water on the polymerization and the viscosity of silicate melts LE LOSQ, Charles
MYSEN, Bjorn
CODY, George
LE LOSQ, Charles English
09:30 - 09:45 SVC11-03 Interpreting water contents of submarine pumice: insights from water speciation MCINTOSH, Iona
NICHOLS, Alexander
TANI, Kenichiro
MCINTOSH, Iona English
09:45 - 10:15 Invited
SVC11-04
Diffusion experiments of chlorine in rhyolitic melts using a pure chlorine source YOSHIMURA, Shumpei YOSHIMURA, Shumpei English
10:15 - 10:45 Invited
SVC11-05
Lava Domes: Eruptions in Chemical Disequilibrium LAVALLEE, Yan
VON AULOCK, Felix W.
KENDRICK, Jackie E.
LAVALLEE, Yan English
Oral Presentation   May 24 AM2 (11:00-12:45) A04                              to the top
11:00 - 11:15 SVC11-06 Geochemistry of tephra glasses and sources and origins of huge-volume felsic magmas in Japanese subduction zones KIMURA, Jun-ichi
NAGAHASHI, Yoshitaka
SATOGUCHI, Yasufumi
other
KIMURA, Jun-ichi English
11:15 - 11:30 SVC11-07 Water content of glass inclusions in the 1813 ejecta at Suwanosejima volcano by micro FT-IR reflectance method SHIMANO, Taketo
OSHIMA, Chigusa
YASUDA, Atsushi
SHIMANO, Taketo English
11:30 - 12:00 Invited
SVC11-08
Chronology of degassing and magma mixing at Surtsey (Iceland, 1963-67) SCHIPPER, C ian
LE VOYER, Marion
MOUSSALLAM, Yves
other
SCHIPPER, C ian English
12:00 - 12:15 Invited
SVC11-09
Degassed-magma volume estimated from melt inclusion analysis: Kirishima 2011 eruptions and Nishinoshima 2014 eruptions SAITO, Genji SAITO, Genji English
12:15 - 12:30 SVC11-10 Real-time atmospheric measurements of CO_{2} and {s:0168}13C in volcanic gases emitted from Mt. Etna (Italy) RIZZO, Andrea
JOST, Hj
AKIYAMA, Ken-ichiro
other
JOST, Hj English
12:30 - 12:45 3-min talk in an oral session (SVC11-P02/SVC11-P03)
Oral Presentation   May 24 PM1 (14:15-15:00) A04                              to the top
14:15 - 14:30 SVC11-11 The role of volatiles during magma storage, decompression and eruption at Stromboli Volcano CORRADO, Cigolini
LAIOLO, Marco
COPPOLA, Diego
CORRADO, Cigolini English
14:30 - 15:00 Invited
SVC11-12
Magmatic processes and eruption triggers at openly-degassing volcanoes COSTA, Fidel
TARSILO, Girona
RUTH, Dawn c.s.
COSTA, Fidel English


Presentation No Title Author Presenter Abstract
Poster Presentation   May 24  Core Time (18:15-19:30) Convention Hall                    to the top
SVC11-P01 Bimodal Distribution of Geyser Preplay Eruptions: Lone Star Geyser, Yellowstone National Park, USA NAMIKI, Atsuko
HURWITZ, Shaul
MURPHY, Fred
other
NAMIKI, Atsuko English
SVC11-P02 The analogue experiment to investigate the condition of bubble detachment from magma chamber wall by seismic wave YOSHINO, Shio
TORAMARU, Atsushi
ARAKI, Manami
YOSHINO, Shio English
SVC11-P03 Significance of vapor bubbles to the volatile budget of melt inclusions from West Zealandia seamount, Mariana arc NICHOLS, Alexander
TAMURA, Yoshihiko
STERN, Robert
NICHOLS, Alexander English