日本地球惑星科学連合2023年大会

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[E] オンラインポスター発表

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24日(水) 15:30 〜 17:00 オンラインポスターZoom会場 (3) (オンラインポスター)

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)

現地ポスター発表開催日時 (2023/5/23 17:15-18:45)

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.

15:30 〜 17:00

[SGC37-P01] Nitrogen isotope geochemical behavior of ammonium between pore water and solids in deep marine sediment

*山中 寿朗1、坂本 有紗1、大西 雄二7、Kim Ji-Hoon2、Pastor Lucie3、Teske Andreas4、Lizarralde Daniel5、Höfig Tobias6、IODP Exp. 385 Scientific Party (1.東京海洋大学、2.Korea Institute of Geoscience and Mineral Resources、3.French Research Institute for Exploitation of the Sea、4.University of North Carolina at Chapel Hill、5.Woods Hole Oceanographic Institution、6.Texas A&M University、7.総合地球環境学研究所)

15:30 〜 17:00

[SGC37-P02] Water and dissolved gas geochemistry of cold CO2-rich springs in Ulleungdo volcano, South Korea

*Wonhee Lee1、Hyunwoo Lee1、Heejun Kim1、Jungpyo Hong1,2、Jeonghoon Lee3、Hyejung Jung3、Naoto Takahata4、Yuji Sano4,5 (1.School of Earth and Environmental Sciences, Seoul National University, Republic of Korea、2.Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, Michigan, USA、3.Department of Science Education, Ewha Womans University, Republic of Korea、4.Atmosphere and Ocean Research Institute, University of Tokyo, Japan、5.Center for Advanced Marine Core Research, Kochi University, Japan)


15:30 〜 17:00

[SGC37-P03] Geochemistry of mantle-derived volatiles dissolved in springs and groundwater released through fluids in Jeju Island, South Korea

*Jeongyeon Yu1、Heejun Kim1、Jeonghoon Lee2、Hyejung Jung2、Naoto Takahata3、Yuji Sano3,4、Hyunwoo Lee1 (1.School of Earth and Environmental Sciences, Seoul National University, Republic of Korea、2.Department of Science Education, Ewha Womans University, Seoul, Republic of Korea、3.Atmosphere and Ocean Research Institute, University of Tokyo, Japan、4.Center for Advanced Marine Core Research, Kochi University, Japan)

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