Thu. May 30, 2019 1:45 PM - 3:15 PM A09 (TOKYO BAY MAKUHARI HALL)

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

[S-CG58] Brittle-Ductile Transition and Supercritical Geofluids for Crustal Energy in Island Arc

convener:Noriyoshi Tsuchiya(Graduate School of Environmental Studies, Tohoku University), Hiroshi Asanuma(AIST), Yasuo Ogawa(Volcanic Fluid Research Center, School of Science, Tokyo Institute of Technology), Shigemi Naganawa(Akita University), Chairperson:Noriyoshi Tsuchiya, Atsushi Okamoto

Wed. May 29, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-SS14] Fault Rheology and Earthquake Physics

[SSS14-P05] Contrasting silica precipitation via flash vaporization and fluid flow and possible effects on fault properties

*Takamasa Niibe¹, Atsushi Okamoto¹, Takashi Amagai², Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University, 2.Japan Oil, Gas and Metals National Corporation)

Wed. May 29, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-SS14] Fault Rheology and Earthquake Physics

[SSS14-P05] Contrasting silica precipitation via flash vaporization and fluid flow and possible effects on fault properties

*Takamasa Niibe¹, Atsushi Okamoto¹, Takashi Amagai², Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University, 2.Japan Oil, Gas and Metals National Corporation)

Wed. May 29, 2019 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-MP32] Deformed rocks, Metamorphic rocks and Tectonics

[SMP32-P15] Development of reaction-induced stress and permeability in MgO-H₂O system

*Hisamu Kasahara¹, Masaoki Uno¹, Atsushi Okamoto¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University)

[SMP32-P19] Evolution of fluid chemistry during basalt-water and basalt-seawater interactions revealed by hydrothermal flow-through experiments

*Yusuke Netsu¹, Atsushi Okamoto¹, Nobuo Hirano¹, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1.Tohoku University, Graduate School of Environment Studies)

Wed. May 29, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-MP32] Deformed rocks, Metamorphic rocks and Tectonics

[SMP32-P15] Development of reaction-induced stress and permeability in MgO-H₂O system

*Hisamu Kasahara¹, Masaoki Uno¹, Atsushi Okamoto¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University)

[SMP32-P19] Evolution of fluid chemistry during basalt-water and basalt-seawater interactions revealed by hydrothermal flow-through experiments

*Yusuke Netsu¹, Atsushi Okamoto¹, Nobuo Hirano¹, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1.Tohoku University, Graduate School of Environment Studies)

Thu. May 30, 2019 9:00 AM - 10:30 AM 301B (3F)

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

[S-MP32] Deformed rocks, Metamorphic rocks and Tectonics

9:15 AM - 9:30 AM

[SMP32-20] Hydration and Ca-metasomatism in Mantle Wedge: An evidence from the Alag Khadny Accretionary Wedge, Western Mongolia

*OTGONBAYAR DANDAR¹, Atsushi Okamoto¹, Masaoki Uno¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University)

Wed. May 29, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-GC Geochemistry

[S-GC41] Solid Earth Geochemistry, Cosmochemistry

[SGC41-P02] H₂ production and CO₂ storage during peridotite serpentinization under CO₂-rich hydrothermal conditions: Influence of pyroxene

*Jiajie Wang¹, Noriaki Watanabe¹, Atsushi Okamoto¹, Kengo Nakamura¹, Takeshi Komai¹ (1.Tohoku Univ.)

Wed. May 29, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-GC Geochemistry

[S-GC41] Solid Earth Geochemistry, Cosmochemistry

[SGC41-P02] H₂ production and CO₂ storage during peridotite serpentinization under CO₂-rich hydrothermal conditions: Influence of pyroxene

*Jiajie Wang¹, Noriaki Watanabe¹, Atsushi Okamoto¹, Kengo Nakamura¹, Takeshi Komai¹ (1.Tohoku Univ.)

Wed. May 29, 2019 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-CG48] Science of slow earthquakes: Toward unified understandings of whole earthquake process

[SCG48-P31] Evidence for semi-brittle flow in mantle-wedge serpentinites under high pore fluid pressure and their implications for deep low frequency earthquakes

Kengo Kataoka¹, Yurina Nagata¹, *Ken-ichi Hirauchi¹, Ryosuke Oyanagi², Atsushi Okamoto³, Katsuyoshi Michibayashi⁴ (1.Department of Geosciences, Faculty of Science, Shizuoka University, 2.Japan Agency for Marine-Earth Science and Technology, 3.Graduate School of Environmental studies, Tohoku University, 4.Department of Earth and Planetary Sciences, Nagoya University)

Wed. May 29, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-CG48] Science of slow earthquakes: Toward unified understandings of whole earthquake process

[SCG48-P31] Evidence for semi-brittle flow in mantle-wedge serpentinites under high pore fluid pressure and their implications for deep low frequency earthquakes

Kengo Kataoka¹, Yurina Nagata¹, *Ken-ichi Hirauchi¹, Ryosuke Oyanagi², Atsushi Okamoto³, Katsuyoshi Michibayashi⁴ (1.Department of Geosciences, Faculty of Science, Shizuoka University, 2.Japan Agency for Marine-Earth Science and Technology, 3.Graduate School of Environmental studies, Tohoku University, 4.Department of Earth and Planetary Sciences, Nagoya University)

Thu. May 30, 2019 10:45 AM - 12:15 PM Convention Hall A (2F)

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

[S-CG48] Science of slow earthquakes: Toward unified understandings of whole earthquake process

10:45 AM - 11:00 AM

[SCG48-22] Short fluid infiltration events in the low permeable metamorphic rocks triggered by crustal fracturing at amphibolite–granulite facies conditions

*Diana Mindaleva¹, Masaoki Uno¹, Fumiko Higashino¹, Atsushi Okamoto¹, Noriyoshi Tsuchiya¹ (1.Graduate school of environmental studies, Tohoku University)

Mon. May 27, 2019 3:30 PM - 5:00 PM A07 (TOKYO BAY MAKUHARI HALL)

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

[S-CG49] Hard-Rock Drilling Science: From Continental to Deep Sea Drilling, and Oman Project

4:40 PM - 5:00 PM

[SCG49-05] Hydration and development of fracture network within oceanic lower crust: an evidence from CM1A of Oman Drilling

★Invited Papers

*Atsushi Okamoto¹, Kazuki Yosida¹, Ryosuke Oyanagi², Oman Drilling Project Phase 2 Science Party³ (1.Graduate School of Environmental Studies, 2.JAMSTEC, 3.Oman Drillng Project Phase 2 Science Party)

Tue. May 28, 2019 10:45 AM - 12:15 PM A07 (TOKYO BAY MAKUHARI HALL)

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

[S-CG49] Hard-Rock Drilling Science: From Continental to Deep Sea Drilling, and Oman Project

10:45 AM - 11:00 AM

[SCG49-12] Structural analyses of ultramafic rocks used by X-ray CT core imaging (Oman Drilling Project Phase 2, D/V CHIKYU)

*Katsuyoshi Michibayashi¹, Yuki Kakihata¹, Ikuo Katayama², Atsushi Okamoto³, Keishi Okazaki⁴, Peter B Kelemen⁵, Eiichi TAKAZAWA⁶, Damon A H Teagle⁷, Oman Drilling Project Phase 2 Science Party⁸ (1.Department of Earth and Planetary Sciences, Graduate School of Environmental Studies, Nagoya University, 2.Hiroshima University, 3.Tohoku University, 4.KCC, JAMSTEC, 5.Columbia University of New York, 6.Niigata University, 7.Southampton University, 8.ICDP)

Tue. May 28, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-CG49] Hard-Rock Drilling Science: From Continental to Deep Sea Drilling, and Oman Project

[SCG49-P08] Numerical simulations for reaction-induced fracture formation of layered gabbro during hydration process

*Kazuki Yoshida¹, Hiroyuki Shimizu², Noriyoshi Tsuchiya¹, Atsushi Okamoto¹, Phase 2 Science Party Oman Drilling Project³ (1.Tohoku university, 2.Geotechnical Analysis Group, Advanced Analysis Department, Civil Engineering Design Division, Kajima Corporation, 3.Oman Drilling Project Phase 2 Science Party)

Tue. May 28, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-CG49] Hard-Rock Drilling Science: From Continental to Deep Sea Drilling, and Oman Project

[SCG49-P08] Numerical simulations for reaction-induced fracture formation of layered gabbro during hydration process

*Kazuki Yoshida¹, Hiroyuki Shimizu², Noriyoshi Tsuchiya¹, Atsushi Okamoto¹, Phase 2 Science Party Oman Drilling Project³ (1.Tohoku university, 2.Geotechnical Analysis Group, Advanced Analysis Department, Civil Engineering Design Division, Kajima Corporation, 3.Oman Drilling Project Phase 2 Science Party)

Thu. May 30, 2019 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-CG58] Brittle-Ductile Transition and Supercritical Geofluids for Crustal Energy in Island Arc

[SCG58-P04] Experimental Study of Critical Point Determination for Multicomponent Fluids using light-scattering Spectroscopic Method

*Nobuo Hirano¹, Yuta Oshima¹, Atsushi Okamoto¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental studies, Tohoku University)

[SCG58-P06] Characteristics of precipitation of amorphous silica and its influences on permeability of fractured granite in superhot geothermal environments

*Hikaru Abe¹, Noriaki Watanabe¹, Kengo Nakamura¹, Atsushi Okamoto¹, Takeshi Komai¹ (1.Graduate School of Environmental Studies, Tohoku University)

[SCG58-P08] Porosity generation during feldspar replacement as the mark of potassium-rich supercritical fluids on the top of granitic intrusion

*Astin Nurdiana¹, Atsushi Okamoto¹, Masaoki Uno¹, Kenta Yoshida², Noriyoshi Tsuchiya¹ (1.Tohoku University, 2.Japan Agency for Marine-earth Science and Technology)

Thu. May 30, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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

[S-CG58] Brittle-Ductile Transition and Supercritical Geofluids for Crustal Energy in Island Arc

[SCG58-P04] Experimental Study of Critical Point Determination for Multicomponent Fluids using light-scattering Spectroscopic Method

*Nobuo Hirano¹, Yuta Oshima¹, Atsushi Okamoto¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental studies, Tohoku University)

[SCG58-P06] Characteristics of precipitation of amorphous silica and its influences on permeability of fractured granite in superhot geothermal environments

*Hikaru Abe¹, Noriaki Watanabe¹, Kengo Nakamura¹, Atsushi Okamoto¹, Takeshi Komai¹ (1.Graduate School of Environmental Studies, Tohoku University)

[SCG58-P08] Porosity generation during feldspar replacement as the mark of potassium-rich supercritical fluids on the top of granitic intrusion

*Astin Nurdiana¹, Atsushi Okamoto¹, Masaoki Uno¹, Kenta Yoshida², Noriyoshi Tsuchiya¹ (1.Tohoku University, 2.Japan Agency for Marine-earth Science and Technology)

Thu. May 30, 2019 1:45 PM - 3:15 PM A09 (TOKYO BAY MAKUHARI HALL)

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

[S-CG58] Brittle-Ductile Transition and Supercritical Geofluids for Crustal Energy in Island Arc

2:30 PM - 2:45 PM

[SCG58-04] Thermodynamic data of aqueous species for supercritical water–rock interaction: dissolution experiments and density-based extrapolation

*Atsushi Okamoto¹, Hajime Ishii¹, Ryosuke Oyanagi², Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, 2.JAMSTEC)

Tue. May 28, 2019 9:00 AM - 10:30 AM Convention Hall A (2F)

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

[S-CG61] Dynamics in mobile belts

9:15 AM - 9:30 AM

[SCG61-14] Experimental investigation of reaction-induced stress and permeability evolution in MgO–H₂O system

*Masaoki Uno¹, Hisamu Kasahara¹, Atsushi Okamoto¹, Noriyoshi Tsuchiya¹ (1.Graduate School of Environmental Studies, Tohoku University)

Mon. May 27, 2019 3:30 PM - 5:00 PM A08 (TOKYO BAY MAKUHARI HALL)

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

[M-GI33] Data-driven geosciences

4:15 PM - 4:30 PM

[MGI33-08] Superresolution of X-ray CT images of core samples for understanding the multi-scale structures of water-rock interaction

*Toshiaki Omori¹, Atsushi Okamoto², Katsuyoshi Michibayashi³, Oman Drilling Project Phase 2 Science Party (1.Kobe Univ., 2.Tohoku Univ., 3.Nagoya Univ.)

4:30 PM - 4:45 PM

[MGI33-09] 3-dimensional Fracture Network Analysis by Persistent Homology

*Miyuki Miyazawa¹, Anna Suzuki², Atsushi Okamoto¹, Hiroyuki Shimizu³, Ippei Obayashi⁴, Yasuaki Hiraoka^4,5, Takatoshi Ito² (1.Graduate School of Environmental Studies, Tohoku University, 2.Institute of Fluid Science, Tohoku University, 3.Kajima Corporation, 4.The Advanced Institute for Materials Research, Tohoku University, 5.Kyoto University)

Atsushi Okamoto

Convener, Chairperson

Speaker, Author, Co-Author

★Invited Papers