Wed. May 25, 2022 9:00 AM - 10:30 AM 201B (International Conference Hall, Makuhari Messe)

[J] Oral
| H (Human Geosciences )
| H-RE Resource and Engineering Geology

[H-RE13] Resource Geology

9:30 AM - 9:45 AM

[HRE13-02] Formation of silica particles in vent fluids under supercritical and vapor conditions

*Jumpei Sugioka¹, Ryoichi Yamada¹, Atsushi Okamoto¹ (1.Graduate School of Environmental Studies, Tohoku University)

Mon. May 23, 2022 3:30 PM - 5:00 PM 105 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-SS Seismology

[S-SS07] Fault Rheology and Earthquake Physics

4:45 PM - 5:00 PM

[SSS07-12] Breccia and Pulverized Rock associated with stibnite mineralization along Median Tectonic Line, Japan

*Geri Agroli¹, Masaoki Uno¹, Atsushi Okamoto¹, Noriyoshi Tsuchiya¹ (1.Tohoku University)

Thu. May 26, 2022 3:30 PM - 5:00 PM 101 (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-MP Mineralogy & Petrology

[S-MP25] Supercontinents and Crustal Evolution

4:00 PM - 4:15 PM

[SMP25-09] Chemistry of eclogite-facies fluids during continental subduction: evidence from the Khungui eclogite in Zavkhan Terrane, Western Mongolia

*Manzshir Bayarbold^1,2, Atsushi Okamoto¹, Geri Agroli¹, Alexey Kotov¹, OTGONBAYAR DANDAR^1,2, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University, 2.Geoscience Center, Mongolian University of Science and Technology, Mongolia)

Sun. May 29, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (15) (Ch.15)

[J] Poster
| S (Solid Earth Sciences )
| S-MP Mineralogy & Petrology

[S-MP27] Deformed rocks, Metamorphic rocks and Tectonics

11:00 AM - 1:00 PM

[SMP27-P11] Significance of magnesium on water-rock interaction within oceanic lithosphere revealed by hydrothermal experiment

*Atsushi Okamoto¹, Yusuke Nishigai¹, Dandar Otgonbayar¹, Masaoki Uno¹ (1.Graduate School of Environmental Studies)

11:00 AM - 1:00 PM

[SMP27-P12] Multi-stage Metasomatism of Peridotite in Mantle Wedge (Alag Khadny Accretionary Wedge, Western Mongolia)

*OTGONBAYAR DANDAR^1,2, Atsushi Okamoto¹, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University, 2.Geosceince Center, School of Geology and Mining, Mongolian University of Science and Technology)

11:00 AM - 1:00 PM

[SMP27-P14] Quaternary Contact Metamorphism in the Kakkonda Geothermal Field Revealed by Using Deep Hole Drilling Cuttings

*Nizar Muhamad Nurdin¹, Geri Agroli¹, Atsushi Okamoto¹, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University)

Fri. May 27, 2022 1:45 PM - 3:15 PM 103 (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG44] Science of slow-to-fast earthquakes

2:00 PM - 2:15 PM

[SCG44-25] Timescales of silica precipitation compared to the earthquake recurrences around seismogenic zones SW Japan

*Hanae Saishu¹, Makoto Otsubo¹, Atsushi Okamoto², Kohtaro Ujiie³ (1.AIST, 2.Tohoku Univ., 3.Univ. Tsukuba)

Wed. May 25, 2022 9:00 AM - 10:30 AM 301A (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG46] Hard-Rock Drilling Science: From Continental to Deep Sea Drilling, and Oman Project

10:00 AM - 10:30 AM

[SCG46-10] Fluid and carbon cycling in the shallow forearc mantle revealed by serpentinized peridotite from hadal seafloor

★Invited Papers

*Ryosuke Oyanagi^1,2, Atsushi Okamoto³, Madhusoodhan Satish-Kumar⁴, Masayo Minami⁵, Yumiko Harigane⁶, Katsuyoshi Michibayashi^2,5 (1.Kokushikan University, 2.Japan Agency for Marine-Earth Science and Technology, 3.Tohoku University, 4.Niigata University, 5.Nagoya University, 6.AIST)

Wed. Jun 1, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (27) (Ch.27)

[E] Poster
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG46] Hard-Rock Drilling Science: From Continental to Deep Sea Drilling, and Oman Project

11:00 AM - 1:00 PM

[SCG46-P01] Formation of brucite reaction zone with antigorite veins from the Oman ophiolite and its comparison with hydrothermal experiments.

★Invited Papers

*Kazuki Yoshida¹, Ryosuke Oyanagi^2,3, Atsushi Okamoto¹ (1.Tohoku university, 2.Kokushikan University, 3.Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

11:00 AM - 1:00 PM

[SCG46-P04] Inversely depleted forearc mantle section records the subduction zone infancy: Umigame Seamount, Bonin Trench

*Katsuyoshi Michibayashi^1,2, Suzu Saito⁸, Kakihata Yuki¹, Yumiko Harigane³, Atsushi Okamoto⁴, Ryosuke Oyanagi⁵, Kohei Hatakeyama^6,7, Ikuo Katayama⁶, Osamu Ishizuka³, Shigeaki Ono² (1.Nagoya University, 2.JAMSTEC, 3.GSJ/AIST, 4.Tohoku University, 5.Kokushikan University, 6.Hiroshima University, 7.Meisei University, 8.Shizuoka University)

Thu. May 26, 2022 9:00 AM - 10:30 AM 101 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG56] Oceanic plate as inputs to subduction zone: evolution process of the oceanic plate

9:20 AM - 9:35 AM

[SCG56-02] Elemental mobility during seafloor alteration of oceanic crust revealed by machine-learning approach

*Matsuno Satoshi¹, Masaoki Uno¹, Atsushi Okamoto¹ (1.Tohoku University)

Thu. May 26, 2022 10:45 AM - 12:15 PM 101 (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG56] Oceanic plate as inputs to subduction zone: evolution process of the oceanic plate

11:30 AM - 11:45 AM

[SCG56-09] The relative rate of hydrogen production between olivine-H₂O and olivine-orthopyroxene-H₂O systems

*Shuhei Tanaka¹, Atsushi Okamoto¹, Kazuki Yoshida¹, Yasuhiro Niwa^2,4, Masao Kimura^2,4, Masaoki Uno¹, Masakazu Fujii^3,5 (1.Tohoku University, 2.High Energy Accelerator Research Organization, 3.National Institute of Polar Research, 4.Institute of Materials Structure Science, 5.The Graduate University for Advanced Studies)

Mon. May 30, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (37) (Ch.37)

[J] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-GI General Geosciences, Information Geosciences & Simulations

[M-GI34] Data-driven geosciences

11:00 AM - 1:00 PM

[MGI34-P05] Superresolution of X-ray CT images of serpentinites by sparse modeling

Shoi Suzuki¹, Atsushi Okamoto², Katsuyoshi Michibayashi³, *Toshiaki Omori¹ (1.Kobe University, 2.Tohoku University, 3.Nagoya University)

Atsushi Okamoto

Speaker, Author, Co-Author

★Invited Papers

★Invited Papers