Session Details

[2poster54-85]T13. Regional geology and stratigraphy: Progress and Review

Mon. Sep 15, 2025 1:30 PM - 3:00 PM JST
Mon. Sep 15, 2025 4:30 AM - 6:00 AM UTC
T13_poster(General Edu. Build.C, 1-2F)

[T13-P-1]Paleosol study in the Indus Group, Ladakh Himalaya, NW India: Reconstruction of paleoclimate records in the Asia-India collision zone

Kohki Yoshida1, Subhadeep Kumar3, Masaaki Shimada4, *Haruki Sugiyama2 (1. Faculty of Science, Shinshu University, 2. Graduate School of Medicine, Science and Technology, 3. DMT Consulting Private LTD, 4. Graduate School of Science and Technology)

[T13-P-2]Sedimentary environment and paleoclimate record in paleosols since the Miocene to Pleistocene period in the Thakkhola region, southern Tibetan Plateau, Nepal

Masaaki SHIMADA1, *Nozomi Hatano2, Bishow Silwal3, Babu Ram Gyawali4, Shoji Mizuki1, Kohki Yoshida3 (1. Shinshu University Graduate School of Science and technology, 2. Faculty of Science, Niigata University, 3. Faculty of Science, Shinshu University, 4. Pokhara University)

[T13-P-3]Sedimentary process of Triassic limestone conglomerates in the Phetchabun area, central Thailand.

*Yoshihito KAMATA1, Naomi MARUYAMA2, Katsumi UENO3, Thasinee CHAROENTITIRAT4, Apsorn SARDSUD5 (1. Institute of Life and Environmental Sciences, University of Tsukuba, 2. Graduate School of Science and Technology, Master's Program in Geosciences, 3. Department of Earth System Science, Faculty of Science, Fukuoka University, 4. Department of Geology, Faculty of Science, Chulalongkorn University, 5. Department of Mineral Resources, Thailand)

[T13-P-4]Sedimentological Comparisons among the Birimian Volcanic Sequences Occurred in the Southern Ashanti Greenstone Belt, Southwestern Ghana

*Satoshi Yoshimaru1, Shoichi Kiyokawa1, Takashi Ito2, Kwabina Ibrahim3, George M. Tetteh4, Frank K. Nyame3 (1. Kyushu Univ., 2. Ibaraki Univ., 3. The University of Ghana, 4. University of Mines and Technology)

[T13-P-5]Provenance change of Permian clastic rocks in the southwestern South Kitakami belt, Northeast Japan

*Keisuke SUZUKI1, Hiroki TAKIGAWA2 (1. Geological Survey of Japan, Research Institute of Geology and Geoinformation, AIST, Tsukuba, Japan, 2. Department of Geology, Faculty of Science, Niigata University, Niigata, Japan)

[T13-P-6]Whole-rock major elements composition of the Kumenan body of the Yakuno Ophiolite

*Keiichiro MAE1, Yousuke Noumi2, Yuta Tsuchiya2 (1. Okayama University of Science Department of Life Science and Engineering research, 2. Okayama University of Science)

[T13-P-9]Zircon U–Pb geochronology of the Hida Belt, Japan: Continental growth history at the margin of East Asia

*Raiki YAMADA1, Mitsuhiro NAGATA2, Hikaru SAWADA3, Sota NIKI4, Yasuhiro OGITA5, Wataru OUCHI6, Shinnosuke AOYAMA6, Takafumi HIRATA7 (1. National Institute of Advanced Industrial Science and Technology, 2. Nihon University, 3. University of Toyama, 4. Nagoya University, 5. Japan Atomic Energy Agency, 6. Niigata University, 7. University of Tokyo)

[T13-P-10]Timing of mylonitization based on zircon U–Pb ages of the Ryoke Plutonic Rocks in the eastern Kii Peninsula: A case study in the Tsukide area, Mie Prefecture

*Makoto TAKEUCHI1,2, Sakurako YABUTA1, Qi LI2, Yoshihiro ASAHARA2 (1. Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 2. Graduate School of Environmental Studies, Nagoya University)

[T13-P-11]Timing of mylonitization based on zircon U–Pb ages of the Ryoke Plutonic Rocks in the eastern Kii Peninsula: Geological structure of 75 Ma mafic to intermediate rocks and granite rocks in the southern Misugi area, Mie Prefecture

*Yuto HIGAKI1, Makoto TAKEUCHI1,2, Qi LI1, Yoshihiro ASAHARA1 (1. Graduate School of Environmental Studies, Nagoya University, 2. Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST))

[T13-P-12]Timing of mylonitization based on zircon U–Pb ages of the Ryoke Plutonic Rocks in the eastern Kii Peninsula: A case study in the Iinan area, Mie Prefecture

*Qi LI1, Makoto takeuchi1,2, Yoshihiro ASAHARA1 (1. Graduate School of Environmental Studies, Nagoya University, 2. Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST))

[T13-P-14]Lithofacies and geological significance of limestone clasts from the Upper Cretaceous Takatsuo Formation (Wakino Subgroup) in the Kurogawa area, Moji Ward, Kitakyushu City, Japan

*Yusaku HOSHIKI1,2, Mie HOSHIKI1,2 (1. Geostack Co., Ltd., 2. Natural History Society of Kitakyushu Museum of Natural History and Human History)

[T13-P-15]Studies on sedimentary environments and tuff in the Ohyamashimo Formation in the Lower Cretaceous Sasayama Group, Southwest Japan

*Mitsuhiko Tsuji1, Yoshihiro Sawada2, Tomonori Tanaka3,4, Mototaka Saneyoshi5 (1. Graduate School of Science and Engineering, Okayama University of Science, 2. Institute of Paleontology and Geochronology, Okayama University of Science, Okayama, Japan,, 3. Institute of Natural & Environmental Sciences, University of Hyogo, Sanda, Japan,, 4. Museum of Nature and Human Activities, Hyogo, 5. Faculty of Biosphere-Geosphere Science, Okayama University of Science, Okayama, Japan)

[T13-P-17]Radiolarian fossils and geological ages from red-colored mudstones and goethite concretions in the Kumage Group distributed in the central parts of Tanegashima Island, Kagoshima, SW Japan

*Akihide KIKUKAWA1,2, Noboru FURUKAWA3, Yoshiaki AITA4 (1. Natural History Museum and Institute, Chiba, 2. Nagoya University, 3. Chiba University, 4. Utsunomiya University)

[T13-P-18]Distribution and stratigraphy of the forearc basin fills on the Otaki district (1:50,000 quadrangle series), Boso Penincula, central Japan

*Masayuki UTSUNOMIYA1, Taku Komatsubara1, Terumasa Nakajima2, Shuichi Tokuhashi2 (1. Geological Survey of Japan, AIST, 2. Former Researcher of Geological Survey of Japan, AIST)

[T13-P-19]Correlation of the Miocene to Quaternary caldera ejecta in the southern part of NE-Japan and the tephras of marine core based on chemical compositions of apatite.

*Kotomi TOGASHI1, Reishi TAKASHIMA2, Yuji ORIHASHI3, Yoshihiro ASAHARA4, Kouki NAGAHASHI5, Takumi KITAMI6, Azumi KUROYANAGI2 (1. Department of Earth Science, Tohoku University, 2. The Center for Academic Resources and Archives Tohoku University Museum, 3. Graduate School of Science and Technology, Hirosaki University, 4. Department of Earth and Environmental Sciences, Graduate School of Environmental Studies, Nagoya University, 5. ITOCHU ENEX Co., Ltd., 6. Nippon Koei Co., Ltd.)

[T13-P-20]Discovery of a Middle Miocene widespread tephra from the Kumano caldera in the Shimokita Peninsula.

*Daiki TSUJIMOTO1, Reishi TAKASHIMA2, Hiroyuki HOSHI3, Hironao SHINJOE4, Azumi KUROYANAGI2 (1. Department of EARTH SCIENCE, Tohoku University, 2. The Center for Academic Resources and Archives Tohoku University Museum, 3. Aichi University of Education, 4. Tokyo Keizai University)

[T13-P-21]Geological and petrological characteristics of the Early Miocene felsic volcanic rocks in the Motegi district, Tochigi, Japan.

*Hinako KOSAKA1, Jun HOSOI1 (1. Graduate School of Science and Engineering, Ibaraki University)

[T13-P-23]Microfossils and paleoenvironment of the Miocene Tari Formation, Tottori Prefecture

*Takeru NAKAI1, Toshiaki IRIZUKI1, Akira TSUJIMOTO1, Hiroki HAYASHI1, Yuichiro TANAKA2, Koji SETO1 (1. Shimane University, 2. National Institute of Advanced Industrial Science and Technology)

[T13-P-24]Geology and microfossils of the Miocene Bihoku Group in Tessei Town, Niimi City, Okayama Prefecture, Japan

*Keita KAWATA1, Toshiaki IRIDUKI1, Hiroki HAYASHI1, Akira TSUJIMOTO1, Yuichiro TANAKA2 (1. Shimane Univ., 2. National Institute of Advanced Industrial Science and Technology)

[T13-P-25]Slump folds and formation process in Tayu area, Kashima Town, Matsue City, Shimane Prefecture

*Hiroto HOTTA1, Tetuya SAKAI2 (1. Graduate School of Natural Science and Technology, Shimane University(Master course), 2. Shimane Univ.)

[T13-P-26]The features of uncofomities, sedimentary structures, and the paleoenvironment of sandstone of the Miocene Kawai Formation in Tamayu Town, Matsue City

*Ryuki UEOKA1, Tetsuya SAKAI2 (1. Shimane University Graduate School of Science and Technology, 2. Shimane University)

[T13-P-27]The divercity of features in sandstone of the Miocene Kawai and Kuri Formations around Isotake Town, Oda City, Shimane Prefecture

*Shogo HIBINO1, Tetsuya SAKAI2 (1. Shimane Univ. Graduate School of Natural Science and Technology Science of Engineering Systems Major Course of Earth Science, 2. Shimane Univ.)

[T13-P-28]Provenance study of the Neogene sandstones in the northern Fossa Magna region, Central Japan

*Shuta HASHIMOTO1, Hayato UEDA2, Koki YOSHIDA1 (1. Shinshu University, 2. Niigata University)

[T13-P-30]Geology of the upper Quaternary distributed in Shirahama Town,Himeji City,Hyogo Prefecture,SW Japan

*Motoki MOURI1 (1. The Inspection for the Geological Committee in Okayama(IGCO) secretariat)

[T13-P-31]A preliminary study of the subsurface Pleistocene stratigraphy beneath the Holocene sediments of the Okayama Plain

*Tomonori Naya1, Susumu Tanabe1, Kiyohide Mizuno1, Misao Hongo2, Haruo Koami3, Shigeyuki Suzuki4 (1. AIST, GSJ, 2. Alps Technical Research Laboratory Co., Ltd., 3. Okayama Prefectural Okayama Asahi Senior High School, 4. Okayama University)