固体地球科学(S)
セッション小記号固体地球化学
セッションIDS-GC45
タイトル和文Volatile Cycles in the Deep Earth - from Subduction Zone to Hot Spot
英文Volatile Cycles in the Deep Earth - from Subduction Zone to Hot Spot
タイトル短縮名和文Volatile Cycles in the Deep Earth
英文Volatile Cycles in the Deep Earth
代表コンビーナ氏名和文佐野 有司
英文Yuji Sano
所属和文東京大学大気海洋研究所海洋地球システム研究系
英文Division of Ocean and Earth Systems, Atmosphere and Ocean Research Institute, University of Tokyo
共同コンビーナ 1氏名和文羽生 毅
英文Takeshi Hanyu
所属和文海洋研究開発機構 地球内部物質循環研究分野
英文Japan Agency for Marine-Earth Science and Technology, Department of Solid Earth Geochemistry
共同コンビーナ 2氏名和文角野 浩史
英文Hirochika Sumino
所属和文東京大学大学院総合文化研究科広域科学専攻相関基礎科学系
英文Department of Basic Science, Graduate School of Arts and Sciences, The University of Tokyo
発表言語EE
スコープ和文
英文Volatile geodynamics and chemical differentiation in the mantle and crust by drastically changing mineral stability and rheological behavior. Fractionation-processes such as partial melting, hydration, and dehydration are all controlled by volatiles in the rocks. A significant portion of the volatiles in the Earth has been thought to be present in the atmosphere and oceans as a consequence of extensive degassing during accretion and subsequent mantle degassing. On the other hand, it has been recently recognized that substantial amounts of volatiles are recycled back into the mantle at subduction zones, where intensive devolatilization of descended materials during arc magma generation was once thought to act as an effective "subduction barrier". However, fundamental questions still remain, such as: how are volatiles species distributed throughout the early and present Earth? What are the mechanisms for, and rate at which, volatiles are fluxed between the atmosphere, crust, and mantle? And what role have volatiles played in driving the evolution of the Earth? The possible role of the core in storing primordial volatiles is also poorly constrained. We therefore welcome contributions from experimental, observational, and modeling studies that help shed light on the deep cycles of volatiles, such as hydrogen, carbon, nitrogen, noble gases, halogens and sulfur. We particularly 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.
発表方法口頭および(または)ポスターセッション
招待講演
  • 篠原 宏志 (産業技術総合研究所活断層・火山研究部門)
  • Yuan Li (Guangzhou Institute of Geochemistry, Chinese Academy of Sciences)
  • Hyunwoo Lee (Seoul National University, Atmosphere and Ocean Research Institute, The University of Tokyo)
時間 講演番号 タイトル 発表者 予稿原稿
口頭発表 5月21日 PM1
13:45 - 14:05 SGC45-01火山からの過剰脱ガス篠原 宏志予稿
14:05 - 14:20 SGC45-02Precise determination of carbon dioxide contents in melt inclusions羽生 毅予稿
14:20 - 14:40 SGC45-03The Geochemistry of Deep NitrogenYuan Li予稿
14:40 - 15:00 SGC45-04Deep nitrogen recycling enhanced by seamount subduction of the Costa Rican arcHyunwoo Lee予稿
15:00 - 15:15 SGC45-05The search for water in the mantle transition zoneChristine Houser予稿
口頭発表 5月21日 PM2
15:30 - 15:45 SGC45-06H2O / F ratios in asthenosphere inferred from volatile compositions of petit-spot lavas桂木 悠希予稿
15:45 - 16:00 SGC45-07ピナツボハルツバージャイト捕獲岩中の硫酸塩を含む流体包有物のナトリウムとカリウムの比: 島弧と背弧海盆玄武岩の水流体コンポーネントとの比較川本 竜彦予稿
16:00 - 16:15 SGC45-08Multiple microanalysis of melt inclusions from the Pitcairn basalts and its implications for melting source region小澤 恭弘予稿
16:15 - 16:30 SGC45-09The effect of chlorine on the transport of trace elements in subduction zonesGreta Rustioni予稿
16:30 - 16:45 SGC45-10Noble gases to study sediment transport processes around deep-sea ventsEdith Horstmann予稿
16:45 - 17:00 SGC45-11Noble gas evidence for the common origin of diamonds and their host kimberlite from Udachnaya-east pipe kimberlite, Siberia角野 浩史予稿
講演番号 タイトル 発表者 予稿原稿
ポスター発表 5月21日 コア
SGC45-P01 Hydrogen isotope study of serpentinite from the Happo-O'ne area: Implications for the water cycle in subduction zone Wataru Ouchi 予稿
SGC45-P02 Origin of Helium and CO2 Gas from Natural Carbonated Waters in the North-Eastern Area of South Korea. YONG CHEON LEE 予稿
SGC45-P03 Delineations of groundwater circulations and geothermal water origins using the geochemistry and noble gas of groundwater around the Yangsan fault, Republic of Korea. YU JIN LEE 予稿
SGC45-P04 Externally heated lever type diamond anvil cell: application in high-pressure experiments involving COH components Nadezda Chertkova 予稿