プログラム掲載短縮名
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Mixed volatiles in subduction zones
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口頭発表 発表日時/会場/座長
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5月25日 AM2 (12:00 - 12:45)
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303
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Mysen Bjorn
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5月25日 PM1 (14:15 - 16:00)
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303
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Mysen Bjorn
趙 大鵬
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5月25日 PM2 (16:15 - 18:00)
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303
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大谷 栄治
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ポスター発表 発表日時/会場
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5月25日 (コアタイム 18:15 - 19:30)
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コンベンションホール
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連絡先
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Mysen Bjorn
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メールアドレス
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bmysen@ciw.edu
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コンビーナ
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Mysen Bjorn
Eiji Ohtani
Dapeng Zhao
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スコープ
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The principal volatiles in subduction zones and CO2 and H2O derived from devolatilization of carbonate and hydrous minerals in subducted oceanic crust and upper mantle. In the forearc region, highly reduced CH4 may be formed via deserpentinization of forarc mantle. Halogens (F and Cl) are can also be transported at least to upper mantle depth. Fluorine may, in fact, enhance the P-T stability of hydrous minerals.
Release of volatiles causes changes in elastic properties of the residual devolatilized rocks, which, in turn, governs seismic velocities, density, shear strength, and compressibility. The intergranular pore fluid also affects these properties. Whether or not fluid forms an interconnected network is critical for these properties. Fluid interconnectivity also controls the extent to which the fluid fluxes melting in and above subducting slabs and the trace and isotopic signatures of the source materials of melting. Physical properties of magma affect style of eruption. These properties, in turn, are affected by H2O/CO2 and F/Cl abundance ratios.
This session will focus on observations, experiments and theory to aid our understanding of
1.Relationship between fluid composition, pressure and temperature and connectivity of intergranular fluid.
2.Shear strength and elastic properties of volatile-bearing mineral assemblages
3.Pressure(depth)-temperature and redox-controlled stability of volatile-bearing minerals in subduction zones and beyond.
4.Melting phase relations and volatile compositions in subduction zones
5.Seismic activity and its relation to volatiles in minerals and in fluids and in melts.
6.Solubility and solution mechanisms of major, mineral, and trace elements in silicate-saturated mixed fluids.
7.Silicate-saturated fluids and volatile-saturated melts and alteration processes in subduction zones.
8.Volatiles and style of volcanic eruption
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発表者への注意事項
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時間 |
講演番号 |
タイトル |
著者 |
発表者 |
予稿原稿 |
口頭発表 5月25日 AM2(12:00-12:45) 303 このページのtopへ
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12:00 - 12:30
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★招待
SCG14-01
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Carbon mobility by hydrous carbonate liquids at subduction zones
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POLI, Stefano
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POLI, Stefano
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12:30 - 12:45
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SCG14-02
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H/D isotope salt effects in electrolyte-bearing aqueous solutions: In situ experiments at supercritical conditions
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FOUSTOUKOS, Dionysis
MYSEN, Bjorn
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FOUSTOUKOS, Dionysis
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口頭発表 5月25日 PM1(14:15-16:00) 303 このページのtopへ
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14:15 - 14:45
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★招待
SCG14-03
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IMAGING FLUIDS AND FLUID REACTIONS IN SUBDUCTION ZONES
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REYNARD, Bruno
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REYNARD, Bruno
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14:45 - 15:00
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SCG14-04
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捕獲岩かんらん岩に記録された間隙流体の形状と組成について
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大谷 真理
中村 美千彦
吉田 武義
ほか
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大谷 真理
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15:00 - 15:15
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SCG14-05
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Dehydration of chlorite and formation of a new hydrous phase
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蔡 閙
井上 徹
藤野 清志
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蔡 閙
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15:15 - 15:30
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SCG14-06
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Concentration dependence of water diffusion in silica glass at water pressure of 50 bar
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黒田 みなみ
橘 省吾
奥村 聡
ほか
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黒田 みなみ
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15:30 - 15:45
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SCG14-07
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沈み込み帯マグマ活動における水・主成分・微量成分元素の挙動
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木村 純一
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木村 純一
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15:45 - 16:00
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SCG14-08
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Phase diagrams for CaCO_{3} + H_{2}O and their bearing on the genesis of carbonate melts
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POLI, Stefano
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POLI, Stefano
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口頭発表 5月25日 PM2(16:15-18:00) 303 このページのtopへ
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16:15 - 16:30
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SCG14-09
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C-O-H volatiles, redox variation and hydrogen isotope fractionation in silicate-COH systems in subduction zones
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MYSEN, Bjorn
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MYSEN, Bjorn
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16:30 - 16:45
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SCG14-10
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スラブの深部構造・脱水と長白山火山の起源
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Chen Chuanxu
趙 大鵬
Tian You
ほか
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趙 大鵬
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16:45 - 17:00
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SCG14-11
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Hydrogen isotope fractionation between melts and aqueous fluid: Implications for magmatic processes
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Dalou Celia
LE LOSQ Charles
Mysen Bjorn
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Dalou Celia
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17:00 - 17:15
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SCG14-12
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Experimental study on the origin of the D/H fractionation between silicate melts and aqueous fluids at HT/HP conditions
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LE LOSQ, Charles
CODY, George D.
DALOU, Celia
ほか
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LE LOSQ, Charles
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17:15 - 17:30
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ポスター講演3分口頭発表枠 (SCG14-P01)
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講演番号 |
タイトル |
著者 |
発表者 |
予稿原稿 |
ポスター発表 5月25日 コア(18:15-19:30) コンベンションホール このページのtopへ
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SCG14-P01
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GHz-P波バッファトロッド・トランスデュサーの開発とDACへの応用
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米田 明
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米田 明
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