Tue. May 28, 2024 1:45 PM - 3:00 PM 201B (International Conference Hall, Makuhari Messe)

[J] Oral
| H (Human Geosciences )
| H-CG Complex & General

[H-CG23] Earth surface processes related to deposition, erosion and sediment transport

2:00 PM - 2:15 PM

[HCG23-02] Assessment of endobenthic activities around deep-sea hydrothermal vents

*Koji Seike¹, Kyoko Yamaoka¹, Akira Iguchi¹, Minako Tanaka², Tatsuo Fukuhara², Kato Kodai², Yuya Yamamoto², Akiyuki Ishida³ (1.Geological Survey of Japan, AIST, 2.KANSO TECHNOS Co., Ltd., 3.Japan Organization for Metals and Energy Security (JOGMEC))

Wed. May 29, 2024 9:00 AM - 10:15 AM 302 (International Conference Hall, Makuhari Messe)

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

[S-CG48] Ocean Floor Geoscience

9:45 AM - 10:00 AM

[SCG48-04] Environmental impact assessment for the development of seafloor massive sulfides

*Tatsuo Fukuhara¹, Yuya Yamamoto¹, Shunsuke Kondo¹, Minako Tanaka¹, Takanori Sugiyama¹, Yosuke Onishi¹, Yumi Komatsubara², Tomomi Eriguchi², Tetsuya Miwa³, Kyoko Yamaoka⁴, Akira Iguchi⁴, Atsushi Suzuki⁴, Akiyuki Ishida⁵, Saeko Nojiri⁵ (1.KANSO TECHNOS Co., Ltd., 2.Science and Technology Co., Ltd., 3.Japan Agency for Marine-Earth Science and Technology, 4.The National Institute of Advanced Industrial Science and Technology, 5.Japan Organization for Metals and Energy Security)

Wed. May 29, 2024 5:15 PM - 6:45 PM Poster Hall (Exhibition Hall 6, Makuhari Messe)

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

[M-IS12] Paleoclimatology and paleoceanography

5:15 PM - 6:45 PM

[MIS12-P06] Seasonal variation in planktonic foraminifera: sediment trap results from subtropical Northwest Pacific

*Yuri Hashimoto¹, Azumi Kuroyanagi², Atsushi Suzuki³, Kyoko Yamaoka³, Takeshi Fujii⁴, Shunsuke Kondo⁴, Hiroko Kamoshida⁵ (1.Tohoku Univ., 2.Tohoku University Museum, 3.AIST, 4.KANSO, 5.JOGMEC)

Sun. May 26, 2024 9:00 AM - 10:30 AM 302 (International Conference Hall, Makuhari Messe)

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

[M-IS22] Interactions of Geosphere-Hydrosphere-Biosphere and Deep-sea Methane Environments

9:45 AM - 10:00 AM

[MIS22-04] Deep fluid input into gas hydrate areas of the Japan Sea: Insights from Li isotope composition of sedimentary pore fluids

*Yusuke Miyajima¹, Yasumasa Sakai², Akira Ijiri², Kyoko Yamaoka¹, Daisuke Araoka¹, REO IKAWA¹, Hideyoshi Yoshioka¹ (1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 2.Kobe University)

Sun. May 26, 2024 10:45 AM - 11:45 AM 302 (International Conference Hall, Makuhari Messe)

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

[M-IS22] Interactions of Geosphere-Hydrosphere-Biosphere and Deep-sea Methane Environments

11:30 AM - 11:45 AM

[MIS22-10] Environmental impact assessment for the development of methane hydrates: chemical properties of shallow surface sediments on Joetsu Knoll, Japan Sea

*Ai Genda¹, Kyoko Yamaoka¹, Yuki Ota¹, Ayumi Tsukasaki¹, Yusuke Miyajima¹, Hideyoshi Yoshioka¹, Atsushi Suzuki¹, Masahiro Suzumura¹ (1.National Institute of Advanced Industrial Science and Technology)

Tue. May 28, 2024 3:30 PM - 4:45 PM 302 (International Conference Hall, Makuhari Messe)

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

[M-ZZ42] Process, Environment, and Exploration of Marine Manganese Deposits

3:30 PM - 3:45 PM

[MZZ42-01] Significance of petrological description for marine ferromanganese deposits as sediment cores and mineral deposits.

*Akira Usui¹, Hiroshi Kawahata ⁴, Kyoko Yamaoka², Teruhiko Kashiwabara³, Hikari Hino⁴ (1.Marine Core Research Institute, Kochi University, 2.Advanced Institute for Science and Techonlogy, 3.Japan Agency for Marine and Earth Science and Techonology, 4.Kochi University)

Tue. May 28, 2024 5:15 PM - 6:45 PM Poster Hall (Exhibition Hall 6, Makuhari Messe)

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

[M-ZZ42] Process, Environment, and Exploration of Marine Manganese Deposits

5:15 PM - 6:45 PM

[MZZ42-P03] Sediment properties in the Clarion-Clipperton Zone (CCZ) in the eastern Pacific

*Kyoko Yamaoka¹, Travis Washburn¹, Akira Iguchi¹, Atsushi Suzuki¹, Tetsuhiro Ishitani², Chisato Murakami³, Akira Tsune³ (1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 2.Marine Biological Research Institute of Japan Co.,Ltd., 3.Deep Ocean Resources Development Co.,Ltd.)

5:15 PM - 6:45 PM

[MZZ42-P04] Assessment of bioturbation of polymetallic nodule deposits in the CCZ

*Minako Tanaka¹, Tatsuo Fukuhara¹, Kyoko Yamaoka², Takeshi Fujii¹, Koh Harada¹, Chisato Murakami³, Akira Tsune³ (1.KANSO TECHNOS Co., Ltd., 2.Geological Survey of Japan, AIST, 3.Deep Ocean Resources Development Co., Ltd.)

Kyoko Yamaoka

Speaker, Author, Co-Author