Session Details
[2oral510-18]T7. Latest Studies in Sedimentary Geology
Mon. Sep 15, 2025 3:00 PM - 5:45 PM JST
Mon. Sep 15, 2025 6:00 AM - 8:45 AM UTC
Mon. Sep 15, 2025 6:00 AM - 8:45 AM UTC
oral room 5(E205)
Chiar:Dan MATSUMOTO(GSJ, AIST), Fumito SHIRAISHI(Hiroshima University)
[T7-O-1]Long- and short-term tectonic cycles and consequent depositional-system changes in forearc, backarc and foreland basins
*Osamu TAKANO1 (1. JAPEX Research Center)
[T7-O-2]Recent surface sediment cores from Lake Suwa, Japan and their sedimentological implications
*Fujio KUMON1, Nozomi HATANO2 (1. Marine Core Research Institute, Kochi University, 2. Niigata University)
[T7-O-3]Investigation of tsunami deposits in the Seto Inland Sea coastal area: coring survey at Lake Oike, Hiketa area, northeastern Shikoku
*Masaru TERABAYASHI1, Atsushi URABE2, Hideo SAKAI3, Yoshiyuki KANEDA4, Toshinori MATSUI5 (1. Faculty of Engineering and Design, Kagawa University, 2. Research Institute for Natural Hazards and Disaster Recovery, Niigata University, 3. School of Science, University of Toyama, 4. Institute of Education, Research and Regional Cooperation for Crisis Management Shikoku, Kagawa University, 5. Graduate School of Science for Creative Emergence, Kagawa University)
[T7-O-4]［Invited］Long-term deep-sea paleoseismology around the Japanese islands: current status and future challenges
*Ken IKEHARA1,2,3 (1. National Institute of Advanced Industrial Science and Technology, 2. National Museum of Nature and Science, Tokyo, 3. Shizuoka University)
【ハイライト講演】 海底に堆積するタービダイトは昔から堆積学者の興味を惹きつけてきており，数多くの研究がなされてきた．長年にわたる知見の蓄積や研究者の経験に基づいた深い洞察力に加え，最近の計測・測定機器の進歩が組み合わさることにより，精度の高い地震履歴の解明につながりつつある．タービダイト研究の将来的な展開に注目したい． ※ハイライト講演とは．．．
[2oral510-18-5add]Break
[T7-O-5]Concretion formation process of trace fossil Tasselia ordamensis from the Hayama Group distributed in the Miura Peninsula, Kanagawa
*Akihide KIKUKAWA1,2, Satoshi TAKAHASHI2, Osamu ABE2, Yoshihiro ASAHARA2, Noboru FURUKAWA3, Hidekazu YOSHIDA2, Nagayoshi KATSUTA4, Yoshiaki AITA5 (1. Natural History Museum and Institute, Chiba, 2. Nagoya University, 3. Chiba University, 4. Gifu University, 5. Utsunomiya University)
[T7-O-6]Reconstructing the growth history of white and pink precious coral skeletons from the Ogasawara region using geochemical analysis
*Tomoyo OKUMURA1, Fumiya Hirakawa1, Ma. Marivic Capitle Pepino1, Takuya Matsuzaki1, Minoru Ikehara1, Tatsuya Kawai2, Tsuyoshi Ishikawa3,1 (1. Kochi University, 2. Marine Works Japan, 3. JAMSTEC)
[T7-O-7]Sedimentological and geochemical characteristics and formation process of fossil travertine distributed in Shirahone hot spring, Nagano Prefecture
*Ai KIYOHARA1, Akihiro KANO2, Hirokazu KATO3, Hitoshi TOMARU4, Fumito SHIRAISHI1 (1. Hiroshima University, 2. University of Tokyo, 3. Teikyo University of Science, 4. Chiba University)
【ハイライト講演】 トラバーチンとは，温泉水から形成された炭酸カルシウム沈殿物である．トラバーチンは日本各地に存在するが，白骨温泉には日本最大規模の化石トラバーチンが分布しており，一部は国の特別天然記念物にも指定されている．本研究は白骨温泉において，かつてどのように温泉水が流れ，トラバーチンが形成されていたのか，堆積学と地球化学からその詳細を明らかにしている． ※ハイライト講演とは．．．
[T7-O-8]The paleo water temperature of early Pleistocene recorded in carbonate clumped isotopes of fish otolith fossils from the Kakegawa Group and an implication of brackish water environment
*Hirokazu Kato1, Ryoko Senda2, Akihiro Kano3 (1. Faculty of Education and Human Sciences, Teikyo University of Science, 2. Graduate School of Social and Cultural Studies, Kyushu University, 3. Graduate School of Science, The University of Tokyo)
[T7-O-9]Sedimentary processes of the Upper Pleistocene reef-complex deposits in Kikai-jima, Kagoshima Prefecture, Japan.
*Hiroki MATSUDA1, Keiichi SASAKI2, Kazuki TOKUSHIGE3, Yuuka KUMAGAE4, Masahide HAYASHIDA4 (1. Fukada Geological Institute, 2. Kanazawa Gakuin University, 3. Graduate School of Science, Kumamoto University, 4. Faculty of Science, Kumamoto University)
【ハイライト講演】 琉球列島には，約160万年前以降にサンゴ礁などによって形成された琉球層群が広く分布する．本研究は，喜界島に見られる琉球層群の垂直的・水平的な変化を詳細に調査することで，徐々に浅海化が起きたことや，同じ時代でも地形や海流の影響で異なる堆積物が形成されたことなどを明らかにしている． ※ハイライト講演とは．．．