The 132nd Annual Meeting of the Geological Society of Japan
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Session OralT7 ［Topic Session］Latest Studies in Sedimentary Geology

[3oral501-11]T7. Latest Studies in Sedimentary Geology

Tue. Sep 16, 2025 8:45 AM - 12:00 PM JST
Tue. Sep 16, 2025 11:45 PM - 3:00 AM UTC
oral room 5(E205)
Chiar:Natsuko ADACHI(Osaka Metropolitan University), Taiki SAWADA(JAPEX)
8:45 AM - 9:00 AM JST(11:45 PM - 12:00 AM UTC)

[T7-O-10]Attempts to elucidate the process of peloid formation by microorganisms

*Fumito SHIRAISHI1, Hannes STENGEL1, Hideaki TANAKA1, Katsunori YANAGAWA2, Naotaka TOMIOKA3, Yoshio TAKAHASHI4 (1. Hiroshima University, 2. The University of Kitakyushu, 3. JAMSTEC, 4. The University of Tokyo)
9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)entryECS

[T7-O-11]Formation factors of the Upper Jurassic–Lower Cretaceous Torinosu-type Limestone

*Taketo Kito1, Ryoichi Nakada2, Akihiro Kano3, Fumito Shiraishi1 (1. Hiroshima University, 2. JAMSETC, 3. The University of Tokyo)
9:15 AM - 9:30 AM JST(12:15 AM - 12:30 AM UTC)entryECS

[T7-O-12]Sedimentological and geochemical characteristics of Mesoproterozoic Chitrakoot Formation, lower Vindhyan Supergroup, central india: Implication on paleoenvironment

*Abhishek Kumar Pandey1, Partha Pratim Chakraborty2, Ryoichi Nakada3, Akihiro Kano4, Fumito Shiraishi1 (1. Hiroshima University, 2. Delhi University, 3. JAMSTEC, 4. Tokyo University)
9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)

[T7-O-13]Carbonate and iron deposits in sedimentary sequence during Sturtian glaciation

Shun Noda1, Shiori Yabe1, *Akihiro Kano1 (1. The University of Tokyo)
9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[3oral501-11-5add]Break

10:00 AM - 10:30 AM JST(1:00 AM - 1:30 AM UTC)Highlight

[T7-O-14][Invited]Evaluation of Natural Hydrogen Potential in Kyushu

*Yasuhiro YAMADA1,2 (1. Kyushu Univ., 2. Royal Holloway Univ. of London)
【ハイライト講演】  水素は従来、石油や天然ガスのような天然資源として存在するとは考えられていなかったが、近年、世界各地で天然水素の発見が報告され、低コストなカーボンニュートラル燃料として、研究機関による調査や、ベンチャー企業による探鉱、開発が進められている。本研究は、これまでの天然水素に関する知見を踏まえ、九州地域の地質ポテンシャル評価スタディを進めているものあり、その成果が注目される。 ※ハイライト講演とは．．．
10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)Highlight

[T7-O-15]Heterogeneity in porosity and permeability of the Lower Cretaceous tidal flat carbonates, driven by the interplay of paleoclimate changes, sedimentary and diagenetic processes, and oil field formation

*Kazuyuki Yamamoto1, Hiroki MONTANI1, Jawaher ALSABEAI2, Suad ALSHAMSI2, Goitse MOSEKIEMANG3, Hideko TAKAYANAGI3, Yasufumi IRYU3 (1. INPEX Corporation, 2. ADNOC Offshore, 3. Tohoku University)
【ハイライト講演】  油田開発では、石油を貯留する地層の不均質性を理解することは、合理的な開発計画を考える上で最も重要な要素の一つである。本研究は、干潟炭酸塩岩の堆積環境による岩相変化と、その後の続成作用による各岩相の孔隙率、浸透率の増加、減少の両方の作用を詳細に検討し、地層の不均質性を包括的に解明しており、有益な洞察を与えるものである。 ※ハイライト講演とは．．．
10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)entryECS

[T7-O-16]Hydrocarbon resource potential of Kuji Group, Iwate, Japan evaluated by sedimentological and organic geochemical analyses

*Shogen YAMAGISHI1, Takuto ANDO1, Shun CHIYONOBU1 (1. Graduate School of International Resource Sciences, Akita University, Japan)
11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)ECS

[T7-O-17]Sedimentological processes of organic matter in the Bengal Fan revealed by chemosedimentary sequence

*Yusuke KODAMA1, Takuto ANDO2, Ken SAWADA1,3 (1. Department of Natural History Sciences, Graduate school of Science, Hokkaido University, 2. Department of Earth Resource Science, Faculty of International Resource Sciences, Akita University, 3. Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University)
11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)entry

[T7-O-18]Sedimentological investigation of the organic-rich turbidite sequences of the Miocene Kawabata Formation in the Horomuigawa River, Hokkaido, Japan

*Haruto Yamada1, Ken Sawada2 (1. Graduate School of science, Hokkaido University, 2. Faculty of science, Hokkaido University)
11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[T7-O-19]Reconstruction of depositional environment by biomarker analysis during the Coniacian-Santonian in the Haborogawa Formation, Yezo Group, Hokkaido

*Atsushi TAKAHASHI1, Hideto Nakamura2, Masashi A. Ikeda3, Takuto Ando4, Ken Sawada3, Reishi Takashima5, Hiroshi Nishi2 (1. Graduate school of science, Hokkaido University, 2. Faculty of Dinosaur Paleontology, Fukui Prefectural University, 3. Faculty of Science, Hokkaido University, 4. Graduate School of International Resource Sciences Faculty of International Resource Sciences, Akita University, 5. The Tohoku University Museum)
11:45 AM - 12:00 PM JST(2:45 AM - 3:00 AM UTC)

[T7-O-20]Paleoenvironmental reconstruction using biomarkers in sedimentary rocks deposited across the Devonian-Carboniferous boundary in northeastern Vietnam

*Risa SHIGI1, Ken SAWADA1,2, Reishi TAKASHIMA3, Toshifumi KOMATSU4 (1. Department of Natural History Sciences, Graduate School of Science, Hokkaido University, 2. Department of Earth and Planetary Sciences, Faculty of Science, Hokkaido University, 3. The Center for Academic Resources and Archives, The Tohoku University Museum, Tohoku University, 4. Faculty of Advanced Science and Technology, Division of Natural Science, Kumamoto University)
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