2025 Annual Meeting of Japan Association of Mineralogical Sciences (JAMS)
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Oral presentationR7: Petrology, Mineralogy and Economic geology (Joint Session with Society of Resource Geology)

R7: Petrology, Mineralogy and Economic geology (Joint Session with Society of Resource Geology)

Wed. Sep 10, 2025 9:30 AM - 12:00 PM JST
Wed. Sep 10, 2025 12:30 AM - 3:00 AM UTC
Oral Presentation C(Room No. 28)
Chairperson:Norikatsu Akizawa(Hiroshima University), Takuya Echigo(Akita University)
This session accepts a wide range of scientific topics about petrology, mineralogy, economic geology, and geochemistry using terrestrial and planetary materials. We welcome various presentations and discussions about constituent materials of the Earth and other planets.
9:30 AM - 9:45 AM JST(12:30 AM - 12:45 AM UTC)Student Presentation Award Entry

[R7-01]Relationship between Structural Evolution of Sulfide Chimneys and Thermoelectric Properties: Insights from Natural Samples and Hydrothermal Experiments

*Kentaro Toda1, Atusi Okamoto1, Dandar Otgonbayar1, Misaki Takahashi1, Tomonori Ihara2, Tatsuo Nozaki3 (1. Tohoku Univ., 2. TUMSAT, 3. Waseda Univ.)
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9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[R7-02]Fluid inclusion studies on auriferous quartz veins from Kwaka, Niger state, North central Nigeria

*Abdulrahman Ahmadu1, Madhusoodhan Satish Kumar1 (1. Niigata University)
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10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)Student Presentation Award Entry

[R7-03]PGE mineralization of Pseudo Merensky Reef at the western limb of the Bushveld Complex, South Africa

*Amu Umesato1, Takuya Echigo1 (1. Akita Univ. Itn.)
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10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)Student Presentation Award Entry

[R7-04]Metamorphic temperature of 'PGE skarn' in the northern limb of the Bushveld Complex

*Sakuya Kubota1, Takuya Echigo1, Yasushi Watanabe1 (1. Akita University)
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10:30 AM - 10:45 AM JST(1:30 AM - 1:45 AM UTC)Student Presentation Award Entry

[R7-05]Origin of magnetite aggregates in the Happo-O’ne metaperidotite, central Japan

*Seinosuke Yamada1, Terumi Ejima2, Shoji Arai3 (1. Shinshu Univ. Sci., 2. Shinshu Univ. Sci. , 3. Kanazawa Univ.)
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10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[R7-06]Trace element compositions of clinopyroxenes in mantle peridotite xenoliths from Aitutaki Island, Cook Islands: garnet signature and mantle metasomatism

*Masako YOSHIKAWA1, Norikatsu Akizawa1, Akihiro Tamura2, Tomoaki Morishita2 (1. Hiroshima Univ., 2. Kanazawa Univ.)
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11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)Student Presentation Award Entry

[R7-07]Petrological characteristics and fomation process of peridotites drilled from the Tyrrhenian back-arc basin, Italy

*Sayako Terada1, Norikatsu Akizawa1, Tomoaki Morishita2, Masako Yoshikawa1, Tomoyuki Shibata1, Akihiro Tamura2, IODP Exp. 402 scientists (1. Hiroshima Univ., 2. Kanazawa Univ.)
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11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)Student Presentation Award Entry

[R7-08]Serpentinization processes in ultramafic rocks and their relationship to jadeite-quartz rocks: A record of fluid-rock interactions in the Yorii area, Kanto Mountains, Japan

*Tomoki Segawa1, Tomoki Taguchi2 (1. Waseda Univ. CSE, 2. Waseda Univ. EDU)
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11:30 AM - 12:00 PM JST(2:30 AM - 3:00 AM UTC)Invited Lecture

[R7-09]Granitic melt inclusions in undifferentiated basalt-hosted diopside megacrysts from the Southern Fossa Magna region

*Takashi Amagai1 (1. AIST. GSJ)
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