The 133rd Annual Meeting of the Geological Society of Japan
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Session OralT9[Topic] Nuclear Energy and Geological SciencesEDI: Equality, Diversity, Inclusion

T9[Topic] Nuclear Energy and Geological Sciences

Mon. Sep 14, 2026 3:00 PM - 6:00 PM JST
Mon. Sep 14, 2026 6:00 AM - 9:00 AM UTC
oral room 1(Lecture hall)
Chiar:Shinji Takeuchi, Koji Umeda, Hidekazu Yoshida
3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[T9-O-1]Overview of the near surface disposal of low-level radioactive waste from research facilities, etc., and the status of technology development

*Koji SHIMADA1, Hikari KITATANI1, Takumi INADA1, Tadafumi NIIZATO2, Tomoko KATO1, Kenji OZONE1, Hisakazu NAKATA1 (1. JAEA Radioactive Wastes Disposal Center, 2. JAEA Decommissioning and Waste Management Domain)
Comment()
3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[T9-O-2]Study on the Impacts of Natural Phenomena on Geological Disposal

*Makoto KAWAMURA1, Nariaki NISHIYAMA1 (1. Japan Atomic Energy Agency)
Comment()
3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[T9-O-3]Properties and Estimated Erosion Rate of a Bentonite Layer in a River Flow Environment

*Ryosuke Kikuchi1, Tsutomu Sato1, W. Russell Alexander2, Masakazu Ito3, Heini M. Reijonen4, Shingo Yokoyama5 (1. Hokkaido Univ., 2. Bedrock Geosciences, 3. Kunimine Industries, 4. Geological Survey of Finland, 5. Central Research Institute of Electric Power Industry)
Comment()
3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[T9-O-4]Formation Processes of Redox Front and Elements Migration Behavior in Accretionary Complex

*Mai NONAKA1, Takamitsu ISHIDERA1, Yuki AMANO1, Tatsunori YOKOYAMA1, Saya KAGAMI1, Mitsuru KUBOTA2, Hidekazu YOSHIDA3 (1. Japan Atomic Energy Agency, 2. GIC Corp., 3. Nagoya Univ.)
Comment()
4:00 PM - 4:30 PM JST(7:00 AM - 7:30 AM UTC)

[T9-O-5](Invited) Exploring the Long-Term Stability of geological disposal systems through Microbial Genomics

*Yuki Amano1 (1. Japan Atomic Energy Agency)
Comment()
4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

Break

4:45 PM - 5:00 PM JST(7:45 AM - 8:00 AM UTC)entryECS: Early Career Scientist

[T9-O-6]Microscopic Observation of Swelling Behavior in Cemented Bentonite

*Tobimaru Ishiwata1, Ryosuke Kikuchi1, Mizuki Ishida1, Tsubasa Otake1 (1. Hokkaido University)
Comment()
5:00 PM - 5:15 PM JST(8:00 AM - 8:15 AM UTC)

[T9-O-7]Applicability of the Single-porosity Models for Describing the In-situ Tracer Test on the Fractured Diatomaceous Mudstone in the Horonobe Underground Research Laboratory

*Koraphat Fairat1, Eiichi Ishii1, Yusuke Ozaki1, Yuta Fukatsu1, Hirokazu Ohno1, Mochizuki Akihito1, Chika Kuribayashi1, Masaki Takeda2,1 (1. Horonobe Underground Research Center, Japan Atomic Energy Agency, 2. Nuclear Fuel Cycle Engineering Laboratory, Japan Atomic Energy Agency)
Comment()
5:15 PM - 5:30 PM JST(8:15 AM - 8:30 AM UTC)

[T9-O-8]Stress tensor inversion using fault-slip data from borehole cores in the Wakkanai Formation at the Horonobe Underground Research Laboratory

*Shin SASAGUCHI1, Sunao KANAZAWA1, Takeshi KATO1, Shun KIMURA2 (1. Kawasaki Geological Engineering Co., Ltd., 2. Horonobe Underground Research Center, Japan Atomic Energy Agency)
Comment()
5:30 PM - 6:00 PM JST(8:30 AM - 9:00 AM UTC)

[T9-O-9](Invited) Fault Activity Assessment at Nuclear Sites: Challenges and New Geological Approaches

*Ryo Tateishi1, Koji Shimada2, Akiyuki Iwamori3, Yasuhiro Ogita2, Yuka Kawauchi3, Nagisa Sawada1 (1. University of Toyama, 2. Japan Atomic Energy Agency , 3. Kansai Electric Power Co. Inc.)
Comment()
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