[B-PT23] Decoding the history of Earth: From Hadean to Modern

Mon. May 25, 2015 4:15 PM - 6:00 PM 104 (1F)

Convener:*Tsuyoshi Komiya(Department of Earth Science & Astronomy Graduate School of Arts and Sciences The University of Tokyo), Yasuhiro Kato(Department of Systems Innovation, Graduate School of Engineering, University of Tokyo), Katsuhiko Suzuki(Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology), Chair:Koichiro Fujinaga(Frontier Research for Energy and Resources, School of Engineering, University of Tokyo), Yutaro Takaya(Research and Development (R&D) Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology)

The latest results of Earth's evolution and geological processes through 4.6 billion years from Hadean to Modern, based on various approaches including fieldworks, chemical analyses, experiments and computer simulation, will be presented. In this session, we aim to discuss and understand causal relationships and interplay among the evolution of Earth's deep interior, changes in the surface environments, and development and evolution of life. Wide-ranging topics are accepted.

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4:15 PM - 4:30 PM

[BPT23-21] REY-rich mud within the Minamitorishima EEZ - A general overview of the latest research results -

*Yasuhiro KATO¹, Koichiro FUJINAGA¹, Kentaro NAKAMURA¹, Kazutaka YASUKAWA¹, Junichiro OHTA¹, Yutaro TAKAYA², Koichi IIJIMA², Tatsuo NOZAKI², Jun-ichi KIMURA², Katsuhiko SUZUKI², Hikaru IWAMORI² (1.Univ. of Tokyo, 2.JAMSTEC)

4:30 PM - 4:45 PM

★ [BPT23-22] Acoustic characterization of deep-sea sediments by sub-bottom profiler

*Kentaro NAKAMURA¹, Shiki MACHIDA², Yuka MASAKI³, Kyoko OKINO⁴, Koichi IIJIMA³, Katsuhiko SUZUKI³, Yasuhiro KATO¹, KR13-02, Cruise menbers ³, MR13-E02 LEG2, Cruise menbers ³, KR14-02, Cruise menbers ³, MR14-E02, Cruise menbers ³ (1.Univ. of Tokyo, 2.Waseda Univ., 3.JAMSTEC, 4.AORI, Univ. of Tokyo)

4:45 PM - 5:00 PM

[BPT23-23] Distribution and geochemical features of extremely REY-rich mud in the Minamitorishima EEZ

*Koichiro FUJINAGA¹, Kentaro NAKAMURA¹, Shiki MACHIDA², Yutaro TAKAYA³, Kazutaka YASUKAWA¹, Junichiro OHTA¹, Shuuhei ARAKI¹, Hanjie LIU¹, Ryo USAMI¹, Yusuke MINAMITANI¹, Ryota MAKI¹, Ryosuke ADACHI¹, Kazutaka OYA¹, Ryota WATANABE², Yoshiro NISHIO³, Yuka MASAKI³, Yoichi USUI³, Satoru HARAGUCHI³, Koichi IIJIMA³, Katsuhiko SUZUKI³, Yasuhiro KATO¹, MR14-E02, Cruise members ³ (1.Univ. of Tokyo, 2.Waseda Univ., 3.JAMSTEC)

5:00 PM - 5:15 PM

[BPT23-24] Grain size distributions of REY-rich mud in the Exclusive Economic Zone around Minamitorishima Island

*Junichiro OHTA¹, Shiki MACHIDA², Koichiro FUJINAGA³, Kentaro NAKAMURA¹, Kazutaka YASUKAWA¹, Yutaro TAKAYA⁴, Koichi IIJIMA⁴, Katsuhiko SUZUKI⁴, Yasuhiro KATO³ (1.Department of Systems Innovation, University of Tokyo, 2.Department of Resources and Environmental Engineering, Waseda University, 3.Frontier Research Center for Energy and Resources, University of Tokyo, 4.Japan Agency for Marine-Earth and Technology)

5:15 PM - 5:30 PM

[BPT23-25] Resource potential of REY-rich mud in the Japanese Exclusive Economic Zone (EEZ) around Minamitorishima Island

*Kazutaka OYA¹, Kazutaka YASUKAWA¹, Junichiro OHTA¹, Koichiro FUJINAGA², Yutaro TAKAYA³, Kentaro NAKAMURA¹, Koichi IIJIMA³, Yasuhiro KATO² (1.Sys. Innovation, Univ. of Tokyo, 2.FRCER, Univ. of Tokyo, 3.JAMSTEC)

5:30 PM - 5:45 PM

[BPT23-26] Chemical leaching experiments on the highly REY-rich mud collected near the Minamitorishima Island.

*Yutaro TAKAYA¹, Koichiro FUJINAGA², Kentaro NAKAMURA³, Koichi IIJIMA¹, Yasuhiro KATO² (1.JAMSTEC, 2.FRCER, Univ. of Tokyo, 3.Sys. Innovation, Univ. of Tokyo)

5:45 PM - 6:00 PM

★ [BPT23-27] Statistical characterization of deep-sea sediments within the Minamitorishima EEZ by Independent Component Analysis

*Kazutaka YASUKAWA¹, Kazutaka OYA¹, Junichiro OHTA¹, Yutaro TAKAYA², Koichiro FUJINAGA³, Kentaro NAKAMURA¹, Hikaru IWAMORI², Yasuhiro KATO³ (1.Sys. Innovation, Univ. of Tokyo, 2.JAMSTEC, 3.FRCER, Univ. of Tokyo)