[A-GE40] Subsurface Mass Transport and Environmental Assessment

[AGE40-P03] Fracture domain of granite based on orientation analysis and its relation to water conducting fractures: an example from the “-500m access/research gallery-North” of the Mizunami Underground Research Laboratory

*Koji Shimada¹, Masakazu Niwa¹, Ryuji Takeuchi¹, Kenji Amano¹ (1.Japan Atomic Energy Agency)

One-off sessions

[J] Oral
| H (Human Geosciences )
| H-CG Complex & General

[H-CG28] Nuclear Energy and Geoscience

[HCG28-01] Quick identification of water-conducting fractures in an underground tunnel using a trace methane gas measurement by cavity ring-down spectroscopy: a case study in the Mizunami Underground Research Laboratory, central Japan

*Masakazu Niwa¹, Kenji Amano², Ryuji Takeuchi¹, Koji Shimada¹ (1.Tono Geoscience Center, Japan Atomic Energy Agency, 2.Geological Disposal Research and Development Department, Japan Atomic Energy Agency)

One-off sessions

[J] Poster
| H (Human Geosciences )
| H-CG Complex & General

[H-CG28] Nuclear Energy and Geoscience

[HCG28-P02] Systematization from Case Studies of Natural Phenomena to Impacts Assessment on a HLW Geological Disposal

*Makoto Kawamura¹, Tsuneari Ishimaru¹, Masakazu Niwa¹, Tetsuya Komatsu¹ (1.Japan Atomic Energy Agency)

One-off sessions

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

[S-SS16] Active faults and paleoseismology

[SSS16-P14] Estimation of fault activity by linear discriminant analysis using chemical composition of fault gouge

*Ryo Tateishi¹, Koji Shimada², Mayuko Shimizu², Shigeru Sueoka², Masakazu Niwa², Tsuneari Ishimaru² (1.University of Toyama, 2.Japan Atomic Energy Agency)

One-off sessions

[E] Poster
| S (Solid Earth Sciences )
| S-GL Geology

[S-GL33] Geologic structure and tectonic history of East Asia and Japanese Islands

[SGL33-P10] Visualization of a high-strain shear zone based on a field survey for minor faults: A case study of southern Kyushu, Japan

*Akira Goto¹, Koji Shimada¹, Masakazu Niwa¹, Shuji Terusawa² (1.Japan Atomic Energy Agency, 2.OYO Corporation)

One-off sessions

[J] Poster
| S (Solid Earth Sciences )
| S-GL Geology

[S-GL34] Geochronology and Isotope Geology

[SGL34-P10] Constraining timing of thrust activity within the Nobeoka Thrust, SW Japan

*Horst Zwingmann¹, Masakazu Niwa², Asuka Yamaguchi³, Koichiro Fujimoto⁴ (1.Kyoto University, 2.Tono Geoscience Center, JAEA, 3.Atmosphere and Ocean Research Institute, Tokyo University, 4.Faculty of Education, Tokyo Gakugei University)

One-off sessions

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

[S-CG59] Evolution and movement of the crustal surface and application of geo- and thermochronology

[SCG59-03] Thermal characteristics of slab fluid in Hongu area, southwest Japan: Insights form thermochronology and fluid inclusion analyses

*Shigeru Sueoka¹, Mizuho Kanno¹, Makoto Kawamura¹, Masakazu Niwa¹, Hideki Iwano², Tohru Danhara² (1.Japan Atomic Energy Agency, 2.Kyoto Fission-Track Co., Ltd.)

One-off sessions

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

[S-CG67] Crustal fluids and deformation

Cancelled

[SCG67-P05] Fluid distribution and its upwelling pathway beneath the source region of Matsushiro seimsmic swarm

*Koichi Asamori¹, Shinya Hiratsuka¹, Hiroki Ogawa¹, Koji Shimada¹, Masakazu Niwa¹ (1.Japan Atomic Energy Agency)

Masakazu Niwa

Speaker, Author, Co-Author