Tue. May 27, 2025 10:45 AM - 12:15 PM 301A (International Conference Hall, Makuhari Messe)

[J] Oral
| S (Solid Earth Sciences )
| S-GC Geochemistry

[S-GC38] Solid Earth Geochemistry, Cosmochemistry

10:45 AM - 11:00 AM

[SGC38-01] Reevaluation of the highly siderophile element composition of the primitive mantle by applying the pyrolite model

*Tetsu Kogiso¹, Akira Ishikawa², Norikatsu Akizawa³ (1.Kyoto University, 2.Institute of Science Tokyo, 3.Hiroshima University)

11:30 AM - 11:45 AM

[SGC38-04] Origin of highly depleted peridotites in supra- subduction zones: whole-rock geochemistry and Os isotope of ultramafic rocks in the Kamuikotan Belt

Hidetoshi Mori¹, *Akira Ishikawa¹, Tetsuya Yokoyama¹, Tetsu Kogiso², Norikatsu Akizawa³ (1.Department of Earth and Planetary Sciences, Institute of Science Tokyo, 2.Graduate School of Human and Environmental Studies, Kyoto University, 3.Graduate School of Human and Environmental Studies, Kyoto UniversityEarth and Planetary System Science, Hiroshima University)

Wed. May 28, 2025 3:30 PM - 5:00 PM 201A (International Conference Hall, Makuhari Messe)

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

[S-CG53] Petrology, Mineralogy & Resource Geology

3:45 PM - 4:00 PM

[SCG53-08] Abiotic Polycyclic Aromatic Hydrocarbons Preserved in Melt Inclusions from a Tahitian Mantle Xenolith

*Itaru Mitsukawa¹, Akira Miyake¹, Yohei Igami¹, Tetsu Kogiso¹, Norikatsu Akizawa², Junya Matsuno³, Megumi Matsumoto⁴, Akira Tsuchiyama^5,6, Kentaro Uesugi⁷, Masahiro Yasutake⁷, Tomoki Taguchi⁸, Yoshio Takahashi⁹, Shohei Yamashita¹⁰, Shota Okumura¹¹ (1.Kyoto University, 2.Hiroshima University, 3.Kyushu University, 4.Tohoku University, 5.Ritsumeikan University, 6.Guangzhou Institute of Geochemistry, 7.JASRI/SPring-8, 8.Waseda University, 9.University of Tokyo, 10.KEK, 11.Sumitomo Chemical)

Mon. May 26, 2025 3:30 PM - 5:00 PM 201A (International Conference Hall, Makuhari Messe)

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

[M-IS17] New frontiers in geology

4:15 PM - 4:30 PM

[MIS17-10] Geochemical characteristics of felsic granitoids hosted by mantle peridotites at a continent-ocean transition zone in the Tyrrhenian Sea

*Norikatsu Akizawa¹, Eirini Poulaki², Emily Cunningham³, Alessio Sanfilippo⁴, Tomoaki Morishita⁵, Ashutosh Pandey⁶, Manon Bickert⁷, Paola Vannucchi⁸, Chao Lei⁹, Swanne Gontharet¹⁰, Tetsu Kogiso¹¹, Akihiro Tamura⁵, Noriaki Abe¹², Agata Stefano¹³, Irina Filina¹⁴, Qi Fu¹⁵, Lorna Kearns¹⁶, Ravi Kiran Koorapati¹⁷, Filomena Loreto¹⁸, Luca Magri¹⁹, Walter Menapace²⁰, Victoria Pavlovics³, Philippe Pezard²¹, Milena Rodriguez-Pilco²², Brandon Shuck², Xiangyu Zhao²³, Emily Estes²⁴, Alberto Malinverno²⁵, Nevio Zitellini¹⁸ (1.Earth Planet Sys Sci, Hiroshima Uni, 2.Louisiana State Uni, 3.Uni Utah, 4.Uni Pavia, 5.Kanazawa Uni, 6.IISER TVM, 7.Uni Brest, 8.Uni Florence, 9.China Uni, 10.Sorbonne Uni, 11.Kyoto Uni, 12.JAEA, 13.Uni Catania, 14.Uni Nebraska, 15.Uni Houston, 16.Uni Leeds, 17.Binghamton Uni, 18.CNR-ISMAR, 19.Uni Tasmania, 20.ICP, 21.Montpellier Uni, 22.Texas A&M Uni at Galveston, 23.Shanghai Jiao Tong Uni, 24.Texas A&M Uni, 25.Columbia Uni)