Wed. May 28, 2025 10:45 AM - 12:15 PM Exhibition Hall Special Setting (2) (Exhibition Hall 7&8, Makuhari Messe)

[J] Oral
| H (Human Geosciences )
| H-TT Technology & Techniques

[H-TT16] Development and application of environmental traceability methods

12:00 PM - 12:15 PM

[HTT16-12] Established an identifying habitat proxy by the combined analysis of δ¹⁸O and trace elements for statolith of Todarodes pacificus (Japanese flying squid)

*Akimasa Suzumura¹, Hisashi Asanuma¹, kan terakado¹, Yoichi Seto², Toyoho Ishimura¹ (1.Graduate School of Human and Environmental Studies, Kyoto University, 2.Toyama Prefectural Agricultural, Forestry & Fisheries Research)

Wed. May 28, 2025 3:30 PM - 5:00 PM 105 (International Conference Hall, Makuhari Messe)

[E] Oral
| S (Solid Earth Sciences )
| S-IT Science of the Earth's Interior & Techtonophysics

[S-IT20] Deep Earth Sciences

4:15 PM - 4:30 PM

[SIT20-10] Influence of sulfur on metal-silicate partitioning of highly siderophile elements at high pressures

*Nozomi Kondo¹, Hisashi Asanuma², Takashi Yoshino¹ (1.Institute for Planetary Materials, Okayama University, 2.Guraduate School of Human and Environmental Studies, Kyoto University)

Tue. May 27, 2025 1:45 PM - 3:15 PM 201A (International Conference Hall, Makuhari Messe)

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

[S-CG57] Hybrid Geochronology from Date to Age

1:45 PM - 2:00 PM

[SCG57-07] Test for high-precision double dating of ²³⁸U–²⁰⁶Pb and ²³⁸U–²³⁰Th zircon ages with LA-ICPMS: a case study from Ohda pyroclastic flow in the Sanbe volcanic system.

*Hisashi Asanuma¹, Hideki Iwano², Takafumi Hirata², Yusuke Sawaki² (1.Kyoto University, 2.The University of Tokyo)

Tue. May 27, 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-CG57] Hybrid Geochronology from Date to Age

5:15 PM - 7:15 PM

[SCG57-P07] Development of LA-ICP-MS U−Th disequilibrium/fission-track double dating for zircon and its application to Holocene volcanics

*Hideki Iwano¹, Sota Niki², Hisashi Asanuma³, Shuhei Sakata⁴, Yuji Orihashi⁵, Takafumi Hirata¹ (1.Geochemical Research Center, The University of Tokyo, 2.Nagoya University, 3.Kyoto University, 4.Eathquake Research Institute, The University of Tokyo, 5.Hirosaki University)

Wed. May 28, 2025 10:45 AM - 12:15 PM 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

11:30 AM - 11:45 AM

[BCG06-10] Constraints on bio-essential trace elements in Paleoproterozoic seawater: Implications for Paleoproterozoic biological consumptions

*Satoshi Yoshida^1,2, Hisashi Asanuma³, Tomohiko Sato⁴, Takafumi Hirata⁵, Yusuke Sawaki² (1.Center for Northeast Asian Studies, Tohoku University, 2.Department of Earth Science and Astronomy, The University of Tokyo, 3.Graduate School of Human and Environmental Studies, Kyoto University, 4. Center for Fundamental Education, Okayama University of Science, 5.Geochemical Research Center, The University of Tokyo)

Hisashi Asanuma

Speaker, Author, Co-Author