日本地球惑星科学連合2023年大会

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セッション記号 S (固体地球科学) » S-GC 固体地球化学

[S-GC37] Volatiles in the Earth - from Surface to Deep Mantle

2023年5月23日(火) 13:45 〜 15:00 303 (幕張メッセ国際会議場)

コンビーナ:羽生 毅(海洋研究開発機構 海域地震火山部門)、Tomonaga Yama(University of Basel)、角野 浩史(東京大学先端科学技術研究センター)、佐野 有司(高知大学海洋コア総合研究センター)、座長:Tomonaga Yama(University of Basel)、角野 浩史(東京大学先端科学技術研究センター)

Volatiles play an important role in the dynamical and chemical processes in the Earth. The presence of volatiles drastically changes mineral stability and rheological behavior of the rocks. Chemical fractionation, such as partial melting, hydration, and dehydration are controlled by volatiles in the rocks. Volatiles enhance the production of magmas and drive their ascent and volcanic eruption. The atmosphere and hydrosphere have been generated by variety of degassing events from the mantle through volcanism. Some volatiles in the Earth's surface have been suggested to be recycled back into the mantle beyond subduction zones. Although the significance of volatiles in the Earth's evolution has been recognized, each of these processes is poorly constrained. We therefore welcome contributions from experimental, observational, and modeling studies that help shed light on the behavior, chemical/physical characteristic, and flux/budget of volatiles, such as hydrogen, carbon, nitrogen, noble gases, halogens, and sulfur. We encourage studies linking the behavior of multiple volatile elements and their isotopic compositions. Studies investigating the linkage between volatile and solid geochemical tracers, the phase equilibria of volatile-bearing mantle assemblages, and the effect of volatiles on the physical properties of the mantle are also welcome.

13:45 〜 14:00

*Michael Broadley1、Peter H Barry 1、David V Bekaert2、Rebecca L Tyne1、Ruta Karolyte3、Michael R Hudak1、Maarten J de Moor6、Sarina Mitchell5、Carlos J Ramírez4、Karen G Lloyd5、Chris J Ballentine3、Bernard Marty2、Alan M Seltzer1 (1.WHOI、2.Univ. Lorraine、3.Univ. Oxford、4.SeGeoAm、5.Univ. Tennessee 、6.OVSICORI )

14:30 〜 14:45

*Sebastien Giroud1,2Yama Tomonaga1,4、Matthias Brennwald1、Rolf Kipfer1,2,3 (1.Dept. of Water Resources and Drinking Water, Eawag、2.Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich、3.Institute of Geochemistry and Petrology, ETH Zurich、4.Dept. of Environmental Sciences, University of Basel)

14:45 〜 15:00

*Iona McIntosh1Kenichiro Tani2Kaori Aoki3、Alexander Nichols4、Taiki Yanagishima5、Qing Chang1、Jun-Ichi Kimura1Makoto Kobayashi6Masanori Murata3Takehiko Suzuki3 (1.Japan Agency for Marine-Earth Science and Technology、2.National Museum of Nature and Science、3.Tokyo Metropolitan University、4.University of Canterbury Christchurch, NZ、5.Kyoto University、6.Mt Fuji World Heritage Centre)

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