| 固体地球科学(S) |
| セッション小記号 |
固体地球化学(GC)
|
| セッションID |
S-GC16
|
| タイトル |
和文 |
Volatile Cycles in the Deep Earth - from Subduction Zones to the Mantle and Core
|
| 英文 |
Volatile Cycles in the Deep Earth - from Subduction Zones to the Mantle and Core
|
| タイトル短縮名 |
和文 |
Volatiles in the Deep Earth
|
| 英文 |
Volatiles in the Deep Earth
|
| 代表コンビーナ |
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
|
|
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 |
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 3
|
氏名 |
和文 |
Colin Jackson
|
| 英文 |
Colin Jackson
|
| 所属 |
和文 |
Geophysical Laboratory, Carnegie Institution of Washington
|
| 英文 |
Geophysical Laboratory, Carnegie Institution of Washington
|
| 国際セッション開催希望 |
国際セッションとしての開催を希望する
|
| 発表主要言語 |
英語
|
| スコープ |
和文 |
Volatiles influence dynamics 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 significant amounts of volatiles are recycled back into the mantle at subduction zones, where intensive devolatilization of subducted 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 day Earth? What are the mechanisms for, and rate at which, volatiles are fluxed between the atmosphere, crust, shallow, and deep 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 or their isotopes. 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.
|
| 英文 |
Volatiles influence dynamics 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 significant amounts of volatiles are recycled back into the mantle at subduction zones, where intensive devolatilization of subducted 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 day Earth? What are the mechanisms for, and rate at which, volatiles are fluxed between the atmosphere, crust, shallow, and deep 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 or their isotopes. 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.
|
| 発表方法希望 |
口頭および（または）ポスターセッション
|
| 招待講演 |
Jun Korenaga (Yale University)
Toru Inoue (Geodynamics Research Center, Ehime University)
Kenji Shimizu (JAMSTEC)
芳野 極 (岡山大学地球物質科学研究センター)
Andrew Jephcoat (ISEI, Okayama University)
Kenji Mibe (Earthquake Research Institute, University of Tokyo)
|
|