[3ch212-19] R24 [Regular Session]Mineral resources and global material cycles

Mon. Sep 6, 2021 1:00 PM - 3:30 PM ch2 (ch2)

Chiar:Kentaro Nakamura, Kazuhide Mimura

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1:00 PM - 1:30 PM

[R24-O-1] [Invited]The Core Competence of the Laser Ablation-ICP-MS for Geochemical and Geochronological Studies

*Takafumi Hirata¹ (1. The Univ. Tokyo, Geochemical Research Center)

1:30 PM - 1:45 PM

[R24-O-2] Development of the simple and rapid Re-Os isotope analytical method for organic-rich sediments

*Moei YANO^1,2, Junichiro OHTA^2,1, Tatsuo NOZAKI^3,2,4,1, Yasuhiro KATO^2,1,3 (1. CIT, 2. Univ. Tokyo, 3. JAMSTEC, 4. Kobe Univ.)

1:45 PM - 2:00 PM

[R24-O-3] Automatic detection of microfossils by a deep learning technique: Toward constraining depositional ages of REY-rich mud

*Kazuhide Mimura¹, Shugo Minabe², Kentaro Nakamura^2,1, Junichiro Ohta^2,1, Kazutaka Yasukawa², Koichiro Fujinaga^1,2, Kazuhiro Takao², Yasuhiro Kato^2,1 (1. Chiba Institute of Technology, 2. University of Tokyo)

2:00 PM - 2:15 PM

[R24-O-4] High density characterizes REY enrichment in pelagic clay around Minamitorishima Island in the western North Pacific

*Yoichi Usui¹, Kazutaka Yasukawa^2,3, Koichi Iijima¹, Hideaki Machiyama¹, Yuji Ichiyama⁴, Erika Tanaka¹, Koichiro Fujinaga³ (1. JAMSTEC, 2. The University of Tokyo, 3. Chiba Institute of Technology, 4. Chiba University)

Break (2:15 PM - 2:30 PM)

2:30 PM - 2:45 PM

[R24-O-5] Os isotopic record during the middle Cretaceous seawater reconstructed by Aki umber deposit as ancient REY-rich mud in the Japanese accretionary complexes

*Koichiro Fujinaga^1,2, Kentaro Nakamura^2,1, Junichiro Ohta^2,1, Moei Yano^1,2, Yusuke Kuwahara², Kazutaka Yasukawa², Yutaro Takaya^2,3,4, Ken Nakayama⁵, Tastuo Nozaki^4,2,6,1, Yasuhiro Kato^2,1,4 (1. Chiba Institute of Technology, 2. The University of Tokyo, 3. Waseda University, 4. JAMSTEC, 5. Kochi University, 6. Kobe University)

2:45 PM - 3:00 PM

[R24-O-6] Geochemical features of Fe-Mn micronodules in deep-sea sediments around Minamitorishima Island: Potential for co-product metal extraction from REY-rich mud

*Kazutaka Yasukawa¹, Satoshi Kino¹, Keishiro Azami¹, Erika Tanaka^2,3,1, Kazuhide Mimura³, Junichiro Ohta^1,3, Koichiro Fujinaga^3,1, Kentaro Nakamura^1,3, Yasuhiro Kato^1,3 (1. The University of Tokyo, 2. JAMSTEC, 3. Chiba Institute of Technology)

3:00 PM - 3:15 PM

[R24-O-7] Geochemical characteristics of ferromanganese nodules from the Minamitorishima EEZ

*Kentaro Nakamura^1,2, Daiki Terauchi¹, Ryo Shimomura¹, Shiki Machida^2,1, Kazutaka Yasukawa¹, koichiro Fujinaga², Yasuhiro Kato^1,2 (1. The University of Tokyo, 2. Chiba Institute of Technology)

3:15 PM - 3:30 PM

[R24-O-8] High-resolution dating of ferromanganese nodules around Minamitorishima Island based on osmium isotopic ratio

*Sota Aoyagi¹, Junichiro Ohta^1,2, Keishiro Azami¹, Kentaro Nakamura^1,2, Kazutaka Yasukawa¹, Tatsuo Nozaki^3,1,4,2, Shiki Machida^2,1, Jun-ichi Kimura³, Yasuhiro Kato^1,2 (1. University of Tokyo, 2. Chiba institute of Technology, 3. Japan Agency for Marine-Earth Science and Technology, 4. Kobe University)

Session information