Solid Earth Sciences(S)
Session Sub CategoryGeochemistry
Session IDS-GC52
TitleVolatile cycles in the Earth - from Surface to Deep Interior
Short titleVolatiles in the Earth
Main ConvenerNameTakeshi Hanyu
AffiliationJapan Agency for Marine-Earth Science and Technology, Department of Solid Earth Geochemistry
Co-Convener 1NameDavid R Hilton
AffiliationUniversity of California San Diego
Co-Convener 2NameHirochika Sumino
AffiliationDepartment of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
Co-Convener 3NameYuji Sano
AffiliationDivision of Ocean and Earth Systems, Atmosphere and Ocean Research Institute, University of Tokyo
ScopeVolatiles play an important role in the dynamical and chemical evolution in the solid Earth. Rheological behavior of mantle rocks and mineral stabilities drastically change by the presence of volatiles. Chemical differentiation caused by partial melting and fluid transport is enhanced by volatiles. The hydrosphere has been maintained from the early Earth by balancing degassing from and regassing to the solid Earth. However, fundamental questions still remain, such as, amount and origin of volatiles in the mantle and crust, transport mechanisms of volatiles from Earth's surface to the solid interior, condition under which volatiles are stabilized in minerals from low to high pressure, influence of volatiles on physical properties of rocks and minerals, and volatile fluxes from the solid Earth to the surface through magmatism. Because these problems are tightly related with each other, we aim to have a discussion by integrating contributions from various fields such as geochemical measurements, geophysical observations, high pressure and temperature experiments, theoretical and modeling studies, all of which shed light on the cycles of volatiles, such as hydrogen, carbon, nitrogen, noble gases, halogens, and sulfur.
Type of presentationOral and Poster presentation
Invited authors Antonio Caracausi (INGV, Italy)
Mark Kendrick (ANU, Australia)
John Lupton (NOAA, USA)