Wed. May 25, 2022 10:45 AM - 12:15 PM 201B (International Conference Hall, Makuhari Messe)

[J] Oral
| H (Human Geosciences )
| H-RE Resource and Engineering Geology

[H-RE13] Resource Geology

11:00 AM - 11:15 AM

[HRE13-07] Re-Os isotope characteristics of sulfide minerals from Kosaka, Osarizawa, and Hosokura deposits in northeastern Japan and implications for their radiometric dating

*Mizuki Ogasawara¹, Junichiro Ohta^1,2, Mizuki Ishida¹, Moei Yano^2,1, Koichiro Fujinaga^2,1, Kazutaka Yasukawa¹, Kentaro Nakamura^1,2, Yasuhiro Kato^1,2 (1.The University of Tokyo, 2.Chiba Institute of Technology)

Thu. Jun 2, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (16) (Ch.16)

[J] Poster
| H (Human Geosciences )
| H-RE Resource and Engineering Geology

[H-RE13] Resource Geology

11:00 AM - 1:00 PM

[HRE13-P02] Mineralogical study of Pb-Zn-Ag ores from the Kamioka deposit, central Japan

*Shota Fuji¹, Mizuki Ishida¹, Junichiro Ohta^1,2, Koichiro Fujinaga^2,1, Kazutaka Yasukawa¹, Kentaro Nakamura^1,2, Yasuhiro Kato^1,2 (1.School of Engineering, the University of Tokyo, 2.ORCeNG, Chiba Institute of Technology)

Fri. May 27, 2022 3:30 PM - 5:00 PM 105 (International Conference Hall, Makuhari Messe)

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

[S-CG48] Ocean Floor Geoscience

3:30 PM - 3:45 PM

[SCG48-13] Depositional age of REY-rich mud around Minamitorishima Island using an image detection system for ichthyoliths based on deep learning models

*Takahiro Kitazawa¹, Kazuhide Mimura^2,1, Kazutaka Yasukawa¹, Junichiro Ohta^1,2, Koichiro Fujinaga^2,1, Kentaro Nakamura^1,2, Yasuhiro Kato^1,2 (1.School of Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology)

3:45 PM - 4:00 PM

[SCG48-14] Automated detection of hydrothermal emission signatures from Multi-Beam Echo Sounder (MBES) images by deep learning

*Kazuhide Mimura^1,2, Kentaro Nakamura^2,1, Kazuhiro Takao², Kazutaka Yasukawa², Yasuhiro Kato^2,1 (1.Chiba Institute of Technology, Ocean Resources Research Center for Next Generation, 2.School of Engineering, University of Tokyo)

4:00 PM - 4:15 PM

[SCG48-15] Multi-elemental characterization of submarine hydrothermal deposits in the Okinawa Trough based on independent component analysis

*Kazutaka Yasukawa¹, Akito Aichi¹, Kentaro Nakamura^1,2, Tatsuo Nozaki^3,1,4,2, Yutaro Takaya^1,3, Mizuki Ishida¹, Yasuhiro Kato^1,2 (1.School of Engineering, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Submarine Resources Research Center, JAMSTEC, 4.Graduate School of Science, Kobe University)

4:30 PM - 4:45 PM

[SCG48-17] High-resolution geochemical and osmium isotopic record across lithologic boundaries of the pelagic clay around Minamitorishima Island in the western North Pacific Ocean

*Haruhito Takuma¹, Kazuhide Mimura², Moei Yano², Junichiro Ohta¹, Koichiro Fujinaga¹, Kazutaka Yasukawa¹, Kentaro Nakamura¹, Yasuhiro Kato¹ (1.School of Engineering Univ. Tokyo, 2.ORCeNG, Chiba Institute of Technology)

Sun. May 22, 2022 1:45 PM - 3:15 PM 304 (International Conference Hall, Makuhari Messe)

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

[B-CG05] Decoding the history of Earth: From Hadean to the present

2:45 PM - 3:00 PM

[BCG05-17] Os isotopic composition of Early Permian seawater reconstructed from Kunimiyama umber in Kochi, central Shikoku, Japan

*Moei Yano^1,2, Junichiro Ohta^2,1, Koichiro Fujinaga^1,2, Kazutaka Yasukawa², Kentaro Nakamura^2,1, Yasuhiro Kato^2,1 (1.Chiba Institute of Technology, 2.The University of Tokyo)

Fri. May 27, 2022 10:45 AM - 12:15 PM 304 (International Conference Hall, Makuhari Messe)

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

[M-IS18] Paleoclimatology and paleoceanography

11:45 AM - 12:00 PM

[MIS18-21] Chemical weathering and volcanism during the early Paleogene hothouse constrained from the marine osmium isotope record in the central North Pacific Ocean

*Kakeru Ikegami¹, Kazutaka Yasukawa¹, Erika Tanaka^3,2,1, Junichiro Ohta^1,2, Yusuke Kuwahara¹, Moei Yano^2,1, Koichiro Fujinaga^2,1, Kentaro Nakamura^1,2, Yasuhiro Kato^1,2 (1.Department of Systems innovation, School Engineering, The University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.Reserch Institute for Marine Geodynamics, JAMSTEC)

12:00 PM - 12:15 PM

[MIS18-22] The Paleogene seawater osmium isotope record reconstructed from carbonate sediments in the Indian Ocean: Implications for the chemical weathering feedback against the Eocene hyperthermals

★Invited Papers

*Yusuke Kuwahara¹, Kazutaka Yasukawa^3,1, Junichiro Ohta^3,2, Moei Yano^2,3, Kazuhide Mimura², Erika Tanaka⁴, Koichiro Fujinaga^2,3, Kentaro Nakamura^1,2, Yasuhiro Kato^3,1 (1.Department of Systems Innovation, School of Engineering, The University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo, 4.Research Institute for Marine Geodynamics, Japan Agency for Marine-Earth Science and Technology)

Sun. May 29, 2022 11:00 AM - 1:00 PM Online Poster Zoom Room (30) (Ch.30)

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

[M-ZZ47] Marine Manganese Deposits - Genesis, environment, and development -

11:00 AM - 1:00 PM

[MZZ47-P10] Elemental mapping of ferromanganese nodules nuclei in the Minamitorishima EEZ using SEM-EDS and μXRF

*Makoto Yazaki¹, Kentaro Nakamura^1,2, Shiki Machida², Kazutaka Yasukawa^3,1, Koichiro Fujinaga^2,3, Yasuhiro Kato^3,1,2 (1.Department of Systems Innovation, the University of Tokyo, 2.ORCeNG, Chiba institute of technology, 3.FRCER, the University of Tokyo)

Yasuhiro Kato

Speaker, Author, Co-Author

★Invited Papers