Dear Colleagues,

Abstract submission for the 1st Joint Meeting of the Japanese Geoscience Union (JpGU) and AGU in Chiba City, Japan (May 20-25, 2017) is now open (

Please consider joining us and submitting a paper to:

Session S-GC52: Volatile cycles in the Earth - from surface to deep interior

Volatiles 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.

Conveners: Takeshi Hanyu, David Hilton, Hirochika Sumino, Yuji Sano

Invited Speakers: Antonio Caracausi (INGV, Italy) and Mark Kendrick (ANU, Australia).

Abstract submission closes February 16th, 2017.

With best wishes,

Takeshi Hanyu (Japan Agency for Marine-Earth Science and Technology (JAMSTEC)) 
David Hilton (Scripps Inst. Oceanography, UC San Diego, USA)
Hirochika Sumino (Dept. Basic Science, University of Tokyo)
Yuji Sano (Atmosphere and Ocean Research Institute (AORI), University of Tokyo)