Session Details
T12[Topic] Latest Studies in Sedimentary Geology
Mon. Sep 14, 2026 1:30 PM - 3:00 PM JST
Mon. Sep 14, 2026 4:30 AM - 6:00 AM UTC
Mon. Sep 14, 2026 4:30 AM - 6:00 AM UTC
T12_poster(Academic Promenade)
[T12-P-1]Physical and mechanical anisotropy and geological structure in siltstones of the Mio–Pleistocene forearc basin
*Nana Kamiya1, Eito Omi1, Weiren Lin1 (1. Kyoto University)
[T12-P-2]Erosion estimated from the consolidation of the Middle Miocene to Pleistocene formations in Toyama Prefecture
*Yusuke NAKAYAMA1, Ken-ichi YASUE2, Toshiyuki KITAZAWA1 (1. Rissho Univ., 2. Toyama Univ.)
[T12-P-3]Stratigraphic and structural characteristics of submarine landslide deposits induced by earthquake and liquefaction
*Asato YAMADA1, Go-Ichiro URAMOTO1, Minoru IKEHARA1, Fumio INAGAKI2 (1. Kochi univ., 2. JAMSTEC)
[T12-P-4]Lithofacies and Diatom Assemblage Characteristics of Flood-induced Deposits Identified in a Sediment Core off the Fuji River, Suruga Bay
*Yusei MIYATA1, Yuka YOKOYAMA2, Izumi SAKAMOTO2, Kohsaku ARAI2, Tsumoru SAGAYAMA3, Seiji HORIUCHI4, Tomohito INOUE4, Asahiko TAIRA5 (1. Graduate School of Oceanography, Tokai University, 2. School of Marine Science and Technology, Tokai University, 3. HRCG, 4. PALYNOSURVEY CO., LTD, 5. Institute of Oceanic Research and Development, Tokai University)
[T12-P-5]Reconstruction of Pliocene–Pleistocene climatic changes based on paleosols around Paleo-Kathmandu Lake, Nepal
*Haruki Sugiyama1, Yoshida Kohki2 (1. Department of Science and Technology, Graduate School of Medicine, Science and Technology, Shinshu University, 2. Institute of Mountain Science, Shinshu University)
[T12-P-6]Depositional Environments and Paleosols of the Paleogene Noda Group in Northern Iwate Prefecture, Japan: Changes in Paleosols Associated with Depositional System Evolution
*Nozomi Hatano1 (1. Faculty of Science, Niigata University)
[T12-P-7]Sedimentary Cyclicity Inferred from Sedimentary Facies and Paleosols of the Lower Uonuma Group Exposed in the Southeastern Part of Tokamachi City, Niigata Prefecture, Japan
*Kyohei Koike1, Nozomi Hatano1 (1. Niigata University)
[T12-P-8]Lateral variations in depositional environments from terrestrial to brackish-water deposits in the Upper Cretaceous Kuji Group, Iwate Prefecture, Japan
*Shogen YAMAGISHI1, Takuto ANDO1, Shun CHIYONOBU1 (1. Graduate School of International Resource Sciences, Akita University, Japan)
[T12-P-9]Flume Experiments on the Deposition of Fine Particles Due to Interactions Between Different Particle Size Fractions
*Ryo Fujiwara1, Masato Uchida1, Keiji Yamada1, Keisuke Taniguchi1 (1. National Institute of Technology, Tsuyama College)
[T12-P-10]Development and evaluation of a method for estimating flood hydraulic parameters using machine learning: a case study of crevasse-splay deposits from the 2024 Okunoto heavy rainfall
*Wataru KOMATSU1, Masaki Yamada2, Hajime Naruse1, Gen Sasamoto2 (1. Kyoto University, 2. Shinshu University)
[T12-P-11]Evaluation of the Reproducibility of AI-Based Sedimentary Facies Classification Using Grain-Size and Compositional Data: A Case Study of Coastal Sediment Cores from Nachikatsuura, Wakayama
*Dan MATSUMOTO1 (1. GSJ, AIST)
[T12-P-12]Micromorphology of Hearth Deposits in Cave Archaeological Sites and Their Experimental Replication
*Etsuko Obu1, Yoshiro Ishihara2, Ryo Gushiken3, Shinji Yamasaki4 (1. Department of Earth System Science, Graduate School of Science, Fukuoka University, 2. Fukuoka University, 3. Amagi Town Board of Education, 4. Okinawa Prefectural Museum and Art Museum)
[T12-P-13]Grain alignment and fabric of the archaeological sediments in Gyoja-ana Cave, Hamamatsu, Shizuoka Prefecture
*Shiho Funatsu1, Yoshiro Ishihara1, Junko Komatsubara2, Takuya Yamaoka3 (1. Fukuoka university, 2. Geological Society of Japan / AIST, 3. Shizuoka University)
[T12-P-14]Tsunami event records and crystalline fabric changes of stalagmites from caves along the southeast coast of Ishigaki Island, Okinawa Prefecture
Yuki Matsumoto1,2, *Yoshiro Ishihara1, Kazuhisa Yoshimura7, Hajime Naruse3, Kaishi Yamagiwa4, Chiaki Katagiri5, Rintaro Ono6 (1. Fukuoka University, 2. West JEC, 3. Kyoto University, 4. Ryukyu University, 5. Okinawa Prefecture, 6. National Museum of Ethnology, Japan, 7. Kyushu University)
[T12-P-15]Investigation of CO2 sequestration through calcification by marine cyanobacteria using stromatolite formation mechanisms
*Ren EINAGA1, Masahiro HAYASHI2, Fumito SHIRAISHI1 (1. Hiroshima University, Graduate School of Advanced Science and Engineering, Program of Earth and Planetary Systems Science, 2. ENEOS Corporation)
[T12-P-16]Double-Layered Structures of Concretions Record Rapid, pH-controlled Growth in Early Diagenesis
*Alvin Loran Yamaguchi Praet1, Hidekazu Yoshida2, Akihiro Kano3, Yoshihiro Asahara4, Koshi Yamamoto2, Taro Kido1, Yusuke Muramiya5, Nagayoshi Katsuta6, Ayako Umemura2 (1. The University of Tokyo, 2. Nagoya University Museum, 3. Tokyo University of Marine Technology and Science, 4. Nagoya University, 5. Fukada Geological Institute, 6. Gifu University)
[T12-P-17]Organisms and depositional environments of Upper Jurassic-Lower Cretaceous seamount limestones from Kitami area, Hokkaido
*Yuya TERAJI1, Natsuko ADACHI1, Toshio KAWAMURA2 (1. Osaka Metropolitan University, 2. Miyagi University of Education)
[T12-P-18]Biomarker-based reconstruction of organic matter source variations and turbidite formation in the offshore Shikoku slope-basin
*Masashi A IKEDA1, Hiroyasu ASAHI2, Yusuke KODAMA1, Ken SAWADA1, Go-Ichiro URAMOTO3, Minoru IKEHARA3 (1. Hokkaido Univ., 2. Hokkaido research organization, 3. Kochi Univ.)
[T12-P-19]Preliminary geochemical comparison of oils and Green Tuff reservoir condensates in the Niigata Basin
*Norifumi MORITA1 (1. INPEX Corporation)
[T12-P-20]Variations in paleoenvironment and paleoecosystem recorded in organic matter in sedimentary rocks deposited across the Devonian-Carboniferous boundary in northeastern Vietnam
*Risa SHIGI1, Ken SAWADA2, 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)