Mon. May 26, 2025 1:45 PM - 3:15 PM 301B (International Conference Hall, Makuhari Messe)

[E] Oral
| B (Biogeosciences )
| B-BG Biogeosciences & Geosphere-Biosphere Interactions

[B-BG01] Earth and Planetary Science Frontiers for Life and Global Environment

convener:Tomoyo Okumura(Marine Core Research Institute, Kochi University), Yuta Isaji(Japan Agency for Marine-Earth Science and Technology), Natsuko Hamamura(Kyushu University), Yuki Morono(Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology), Chairperson:Tomoyo Okumura(Marine Core Research Institute, Kochi University), Yuki Morono(Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology), Yuta Isaji(Japan Agency for Marine-Earth Science and Technology)

Mon. May 26, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[E] Poster
| B (Biogeosciences )
| B-BG Biogeosciences & Geosphere-Biosphere Interactions

[B-BG01] Earth and Planetary Science Frontiers for Life and Global Environment

convener:Tomoyo Okumura(Marine Core Research Institute, Kochi University), Yuta Isaji(Japan Agency for Marine-Earth Science and Technology), Natsuko Hamamura(Kyushu University), Yuki Morono(Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology)

Wed. May 28, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| S (Solid Earth Sciences )
| S-CG Complex & General

[S-CG55] Ocean Floor Geoscience

5:15 PM - 7:15 PM

[SCG55-P08] Exploration of serpentine-hosted alkaline vent in the southern Mariana forearc region with a focus on carbonates

*Kosuke Adachi¹, Tomoyo Okumura², Yumiko Harigane³, Yasuhiko Ohara⁴ (1.Kochi University, 2.Marine Core Research Institute, Kochi University, 3.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 4.Hydrographic and Oceanographic Department of Japan)

Mon. May 26, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[E] Poster
| B (Biogeosciences )
| B-BG Biogeosciences & Geosphere-Biosphere Interactions

[B-BG01] Earth and Planetary Science Frontiers for Life and Global Environment

5:15 PM - 7:15 PM

[BBG01-P03] Fluid sampling in the deepest serpentinite-hosted vent site, Shinkai Seep Field, Southern Mariana Arc: Revisiting after 8 years

*Tomoyo Okumura¹, Junichi Miyazaki², Shinsuke Kawagucci², Eiji Tasumi², Ken Takai², Yumiko Harigane³, Molly Anderson⁴, Emily Chin⁵, Nicholas Dygert⁶, Veronique Le Roux⁷, Matthew Leybourne⁸, Yasuhiko Ohara⁹, Ignacio Pujana¹⁰, Robert J. Stern¹⁰, TN438 on board scientist and students (1.Marine Core Research Institute, Kochi University, 2.JAMSTEC, 3.AIST, 4.Woods Hole Oceanographic Institution, 5.Scripps Institution of Oceanography, 6.University of Tennessee, 7.Université de Lorraine, 8.Queen’s University, 9.Hydrographic and Oceanographic Department of Japan, 10.University of Texas at Dallas)

5:15 PM - 7:15 PM

[BBG01-P04] Relationship between size and weight of a Japanese precious coral skeleton, Corallium japonicum

*Tomoyo Okumura¹, Ma Marivic Capitle Pepino¹, Harumi Isshiki¹, Fujio Kumon¹ (1.Marine Core Research Institute, Kochi University)

Mon. May 26, 2025 1:45 PM - 3:15 PM 301A (International Conference Hall, Makuhari Messe)

[E] Oral
| B (Biogeosciences )
| B-PT Paleontology

[B-PT03] Biomineralization, Geochemistry, and Environmental Studies

2:00 PM - 2:15 PM

[BPT03-02] **Oceanic Imprints: Deciphering the Life History of the Squid, Uroteuthis duvaucelii Through Statolith Microchemistry in the Tropical Western Pacific**

*Jessica Managa Legaspi¹, Tomoyo Okumura¹ (1.Kochi University, Japan)

Mon. May 26, 2025 3:30 PM - 5:00 PM 301A (International Conference Hall, Makuhari Messe)

[E] Oral
| B (Biogeosciences )
| B-PT Paleontology

[B-PT03] Biomineralization, Geochemistry, and Environmental Studies

3:45 PM - 4:00 PM

[BPT03-07] **Elemental Profiles of a Japanese Precious Coral skeleton, Corallium japonicum :
new insights from an alive colony**

*Ma Marivic Capitle Pepino¹, Tomoyo Okumura² (1.Kuroshio Science Program, Kochi University, 2.Marine Core Research Institute, Kochi University)

Wed. May 28, 2025 9:00 AM - 10:30 AM 301A (International Conference Hall, Makuhari Messe)

[J] Oral
| B (Biogeosciences )
| B-CG Complex & General

[B-CG06] Decoding the history of Earth: From Hadean to the present

10:15 AM - 10:30 AM

[BCG06-06] MALDI-TOFMS 2D-mapping analysis of indigenous biomarkers for oxygenic photosynthesis preserved in the Archean and Proterozoic black shales

Kei-ichiro Ishikawa¹, Hiroki Saito¹, *Kosei E. Yamaguchi^1,2, Tomoyo Okumura³, Akira Ijiri⁴ (1.Toho University, 2.NASA Astrobiology Institute, 3.Kochi University, 4.Kobe University)

Thu. May 29, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS14] Paleoclimatology and paleoceanography

5:15 PM - 7:15 PM

[MIS14-P06] Paleoenvironmental change in the East Asia mid-Latitude during the middle to late Pleistocene: Insights from the laminated carbonate in Gobi Desert, Mongolia

*Akito Nakamura¹, Hitoshi Hasegawa¹, Tomoyo Okumura¹, Minoru Ikehara¹, Aki Sakuma², Chuan-Chou Shen³, Ichinnorov Niiden⁴, Davassuren Davadori⁵, Tsuyoshi Ishikawa⁶, Asuka Yamaguchi², Goro Komatsu⁷ (1.Kochi univ., 2.Univ.Tokyo, 3.National Taiwan Univ., 4.Paleontological Institute, Mongolia, 5.Mongolian National Univ., 6.JAMSTEC, 7.Università d’Annunzio)

Thu. May 29, 2025 9:00 AM - 10:30 AM 201B (International Conference Hall, Makuhari Messe)

[J] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-ZZ Others

[M-ZZ44] Marine Manganese Minerals: Depositional environments, exploration, and development

9:00 AM - 9:15 AM

[MZZ44-01] Submicron-scale petrography of hydrogenetic ferromanganese crusts for growth processes and environments

*Akira Usui¹, Hiroshi Kawabata², Teruhiko Kashiwabara³, Tomoyo Okumura¹, Makoto Miyajima⁴ (1.Marine Core Research Institute, Kochi University, 2.Fac. Science and Engineering, Kochi Univ., 3.Japan Marine and Earth Science and Technology Center, 4.Fac. Agriculture & Marine Sciences)

9:30 AM - 9:45 AM

[MZZ44-03] Rhythmical laminations of Ferromanganese Crust reveals a 6.5 million-year record of eolian dust flux to the Northwest Pacific

*Hitoshi Hasegawa^1,2, Nanako Koma¹, Akira Usui², Hirokuni Oda³, Hiroshi Kawabata¹, Norihiro Takahashi⁴, Takashi Ito⁴, Tomoyo Okumura², Go-Ichiro Uramoto², Teruhiko Kashiwabara⁵, Masanobu Yamamoto⁶ (1.Faculty of Science and Technology, Kochi University, 2.MaCRI, Kochi University, 3.AIST, 4.Ibaraki University, 5.JAMSTEC, 6.Hokkaido University)

Thu. May 29, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

[J] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-ZZ Others

[M-ZZ44] Marine Manganese Minerals: Depositional environments, exploration, and development

5:15 PM - 7:15 PM

[MZZ44-P01] Microstructures observed on the surface of ferromanganese crusts at the Takuyo-Daigo Seamount

*Makoto Miyajima¹, Shingo Kato^3,4, Akira Usui², Katsuhiko Suzuki⁴, Tomoyo Okumura² (1.Kochi Univ., 2.MaCRI, Kochi Univ., 3.RIKEN, 4.JAMSTEC)

Tomoyo Okumura

Convener, Chairperson

[B-BG01] Earth and Planetary Science Frontiers for Life and Global Environment

[B-BG01] Earth and Planetary Science Frontiers for Life and Global Environment

Speaker, Author, Co-Author

[S-CG55] Ocean Floor Geoscience

[SCG55-P08] Exploration of serpentine-hosted alkaline vent in the southern Mariana forearc region with a focus on carbonates

[B-BG01] Earth and Planetary Science Frontiers for Life and Global Environment

[BBG01-P03] Fluid sampling in the deepest serpentinite-hosted vent site, Shinkai Seep Field, Southern Mariana Arc: Revisiting after 8 years

[BBG01-P04] Relationship between size and weight of a Japanese precious coral skeleton, Corallium japonicum

[B-PT03] Biomineralization, Geochemistry, and Environmental Studies

[BPT03-02] **Oceanic Imprints: Deciphering the Life History of the Squid, Uroteuthis duvaucelii Through Statolith Microchemistry in the Tropical Western Pacific**

[B-PT03] Biomineralization, Geochemistry, and Environmental Studies

[BPT03-07] **Elemental Profiles of a Japanese Precious Coral skeleton, Corallium japonicum :
new insights from an alive colony**

[B-CG06] Decoding the history of Earth: From Hadean to the present

[BCG06-06] MALDI-TOFMS 2D-mapping analysis of indigenous biomarkers for oxygenic photosynthesis preserved in the Archean and Proterozoic black shales

[M-IS14] Paleoclimatology and paleoceanography

[MIS14-P06] Paleoenvironmental change in the East Asia mid-Latitude during the middle to late Pleistocene: Insights from the laminated carbonate in Gobi Desert, Mongolia

[M-ZZ44] Marine Manganese Minerals: Depositional environments, exploration, and development

[MZZ44-01] Submicron-scale petrography of hydrogenetic ferromanganese crusts for growth processes and environments

[MZZ44-03] Rhythmical laminations of Ferromanganese Crust reveals a 6.5 million-year record of eolian dust flux to the Northwest Pacific

[M-ZZ44] Marine Manganese Minerals: Depositional environments, exploration, and development

[MZZ44-P01] Microstructures observed on the surface of ferromanganese crusts at the Takuyo-Daigo Seamount