[S-CG54] New Insights of Fluid-Rock Interactions: From Surface to Deep Subduction Zone

Fri. May 30, 2025 10:45 AM - 12:15 PM 105 (International Conference Hall, Makuhari Messe)

convener:Atsushi Okamoto(Graduate School of Environmental Studies), Jun Muto(Department of Earth Sciences, Tohoku University), Ikuo Katayama(Department of Earth and Planetary Systems Science, Hiroshima University), Junichi Nakajima(Department of Earth and Planetary Sciences, Institute of Science Tokyo), Chairperson:Miho Furukawa(Department of Earth Science, Tohoku University), Ken-ichi Hirauchi(Department of Geosciences, Faculty of Science, Shizuoka University)

Fluid circulation and fluid-mediated reactions and mass transport in the Earth's interior govern active phenomena within crust and mantle, such as earthquakes, volcanism, metamorphism, and formation of ore deposits. In this session, we will discuss the micro- to field-scale fluid-rock interactions related to chemical reactions, mass transport, deformation from near-surface to deep subduction zone, and their impact on global elemental cycles and seismicity. Recent progress of various studies on fluid-rock interactions in geothermal systems, mineralization, serpentinization, carbonation, metamorphism and metasomatism in deep subduction zones are welcome. We would like to comprehensively discuss the impact of these processes on global element cycles, surface environments and seismic activities. We welcome research from various approaches such as field studies, laboratory experiments, geophysical observations, numerical simulations.

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10:45 AM - 11:00 AM

[SCG54-07] Geochemical research of volatile element and fluid cycles at plate boundaries

★Invited Papers

*Takanori Kagoshima¹ (1.University of Toyama)

11:00 AM - 11:15 AM

[SCG54-08] Element transport and the breakdown of magnetite during alteration of a gabbroic vein at the crust-mantle transition zone, the Bayankhongor Ophiolite, Mongolia.

*Nomin Tumurkhuu¹, OTGONBAYAR DANDAR¹, Masaoki Uno¹, Manzshir Bayarbold¹, Kazuki Yoshida², Yasuhiro Niwa^2,3, Masao Kimura^2,3, Atsushi Okamoto¹ (1.Graduate School of Environmental Studies, Tohoku University, 2.High Energy Accelerator Research Organization (KEK), 3.Graduate University for Advanced Studies)

11:15 AM - 11:30 AM

[SCG54-09] Contrasting evolution of the hydrogen generation between the lower crust gabbroic rocks and the mantle peridotite serpentinization

*Kazuki Yoshida¹, Atsushi Okamoto², Ryosuke Oyanagi^3,4, Masakazu Fujii^5,6, Kenta K. Yoshida⁴, Yasuhiro Niwa^1,6, Yasuo Takeichi⁷, Masao Kimura^1,6 (1.High Energy Accelerator Research Organization, 2.Tohoku University, 3.Kokushikan University, 4.Japan Agency for Marine-Earth Science and Technology, 5.National Institute of Polar Research, 6.The Graduate University for Advanced Studies, 7.Osaka University)

11:30 AM - 11:45 AM

[SCG54-10] Permeability enhancement in fractured peridotite with chelating agents

*Luis Salala^1,2, Noriaki Watanabe¹, Jiajie Wang¹, Atsushi Okamoto¹ (1.Graduate Schoool of Environmental Studies, Tohoku University, 2.Faculty of Engineering and Architecture, University of El Salvador)

11:45 AM - 12:00 PM

[SCG54-11] Runaway Slip in a Fault Rock Analog under Shear Stress-Constrained Conditions

*Miki Takahashi¹ (1.Institute of Earthquake and Volcano Geology, Geological Survey of Japan, AIST)

12:00 PM - 12:15 PM

[SCG54-12] Water-promoted deformation mechanisms: experiments of quartz-albite mixtures at brittle-ductile transitional condition

*Miho Furukawa¹, Sando Sawa¹, Hiroyuki Nagahama¹, Oliver Plümper², Jun Muto¹ (1.Department of Earth Science, Graduate School of Science, Tohoku University, 2.Department of Earth Sciences, Utrecht University)

Session information