日本地球惑星科学連合2024年大会

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セッション記号 S (固体地球科学) » S-GC 固体地球化学

[S-GC32] Volatiles in the Earth - from Surface to Deep Mantle

2024年5月26日(日) 13:45 〜 15:00 301A (幕張メッセ国際会議場)

コンビーナ:清水 健二(海洋研究開発機構　高知コア研究所)、Caracausi Antonio、角野 浩史(東京大学先端科学技術研究センター)、羽生 毅(海洋研究開発機構 海域地震火山部門)、座長:清水 健二(海洋研究開発機構　高知コア研究所)、Antonio Caracausi、羽生 毅(海洋研究開発機構 海域地震火山部門)、角野 浩史(東京大学先端科学技術研究センター)

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 characteristics, 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.

14:30 〜 14:45

[SGC32-04] Fluid migration and geochemical processes in seismically active regions: a case study in Southern Italy

★Invited Papers

*Dario Buttitta1、Antonio Álvarez-Valero2、Giorgio Capasso1、Antonio Caracausi1,2、Lauro Chiaraluce3、Michele Paternoster4、Matteo Picozzi5、Filippo Zummo4 (1.Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, 90146, Italy、2.Departamento de Geología, Universidad de Salamanca, Salamanca, 37008, Spain、3.Istituto Nazionale di Geofisica e Vulcanologia, Sezione Rome, Roma, 00143, Italy、4.Department of Sciences, University of Basilicata, Viale dell'Ateneo10, Potenza 85100, Italy、5.Physics Department ‘E. Pancini’, University of Naples Federico II, Naples 80126, Italy)

14:45 〜 15:00

[SGC32-05] Preliminary results of a petrological and geochemical study on mantle xenoliths from the Mediterranean: new constraints on the mantle below Italy

*Antonio Caracausi1,2、Gabriele Carnevale3、Massimo Coltorti4、Barbara Faccini4、Laura Italiano3、Giulia Marras5、Michele Paternoster6,2、Silvio Giuseppe Rotolo3,2、Vincenzo Stagno5,2、Vittorio Zanon7 (1.Departamento de Geología, Universidad de Salamanca, Salamanca, Spain、2.Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Palermo, Palermo, Italy、3.Dipartimento di Scienze della Terra e del Mare, Università di Palermo, Palermo, Italy、4.Dipartimento di Scienze dell’Ambiente e della Prevenzione, Università di Ferrara, Via Saragat 1, 44121 Ferrara, Italy、5.Dipartimento di Scienze della Terra, Sapienza Università di Roma, Roma, Italy、6.Dipartimento di Scienze, University of Basilicata, Potenza, Italy、7.Instituto de Vulcanologia e Avaliação de Riscos, Universidade dos Açores, Ponta Delgada, Portugal )

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