Thermodynamic constraints on devolatilization of variably altered oceanic ultramafic rocks during subduction: Implications for subarc mantle oxidation

Weigang Peng

講演情報

[E] 口頭発表

セッション記号 S (固体地球科学) » S-MP 岩石学・鉱物学

[S-MP32] Oceanic & Continental Subduction Processes: petrologic/geophysical/geochemical perspective

2026年5月26日(火) 09:00 〜 10:30 展示場特設会場 (6) (幕張メッセ国際展示場 7・8ホール)

座長:礼満ハフィーズ(鹿児島大学)、Das Kaushik(Hiroshima University)、今山武志(岡山理科大学フロンティア理工学研究所)

10:15 〜 10:30

[SMP32-06] Thermodynamic constraints on devolatilization of variably altered oceanic ultramafic rocks during subduction: Implications for subarc mantle oxidation

*Weigang Peng¹, Katy A. Evans², James A.D. Connolly³, Yi-Bing Li⁴, Han Hu⁵, Lifei Zhang⁶ (1. Hohai University, 2. Curtin University, 3. ETH Zurich, 4. Zhejiang Ocean University, 5. China Earthquake Administration, 6. Peking University)

キーワード：Altered ultramafic rock, Devolatilization, Subduction, Oxygen fugacity, Subarc mantle oxidation, Thermodynamic modeling