[M-ZZ41] Marine manganese deposits: from basic to applied sciences

Wed. May 23, 2018 10:45 AM - 12:15 PM A11 (Tokyo Bay Makuhari Hall)

convener:Akira Usui(Marine Core Research Center, Kochi University), Yoshio Takahashi(Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo), Katsuhiko Suzuki(国立研究開発法人海洋研究開発機構・海底資源研究開発センター, 共同), Takashi Ito(Faculty of Education, Ibaraki University), Chairperson:Usui Akira, Suzuki Katsuhiko(JAMSTEC), Takahashi Yoshio(東京大学)

Marine manganese deposits include nodules and crusts of massive iron-manganese oxide aggregates associated with useful metals. The deposits are known as potential resources of cobalt, copper, nickel, rare earth elements, platinum, and tellurium. However, the controlling parameters on the regional and temporal variations in chemical and mineralogical composition have not been clarified yet. In this session, various factors in the growth of manganese oxides, enrichment and circulation of metals, paleoenvironment, and formation age of manganese deposits will be discussed from viewpoints of geology, mineralogy, paleocean sciences, geochemistry, microbiology, and sea floor engineering.

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10:45 AM - 11:00 AM

[MZZ41-01] Magnetostratigraphy and environmental magnetism of ferromanganese crust using scanning SQUID microscopy

*Hirokuni Oda¹, Akira Usui², Yuhji Yamamoto², Takashi Ito³, Jun Kawai⁴ (1.Institute of Geology and Geoinformation, Geological Survey of Japan, AIST, 2.Kochi University, 3.Ibaraki University, 4.Kanazawa Institute of Technology)

11:00 AM - 11:15 AM

[MZZ41-02] Nanomineralogical Evidence of Microbial Formation of Deep-Sea Ferromanganese Crust

*Yohey Suzuki¹ (1.Graduate School of Science, The University of Tokyo)

11:15 AM - 11:30 AM

[MZZ41-03] Heterogeneity of microbial life on bathyal and abyssal ferromanganese crusts in the Takuyo-Daigo and Takuyo-Daisan seamounts

*Shingo Kato¹, Katsuhiko Suzuki¹ (1.Japan Agency for Marine-Earth Science and Technology)

11:30 AM - 11:45 AM

[MZZ41-04] Mineralogical and geochemical characteristics of manganese mineral particles in the South Pacific Gyre sediment

*Go-Ichiro Uramoto^1,2, Yuki Morono², Naotaka Tomioka², Shigeyuki Wakaki², Ryoichi Nakada², Rota Wagai³, Kentaro Uesugi⁴, Akihisa Takeuchi⁴, Masato Hoshino⁴, Yoshio Suzuki^4,5, Satoshi Mitsunobu⁶, Fumito Shiraishi⁷, Hiroki Suga⁷, Yasuo Takeichi⁸, Yoshio Takahashi⁵, Fumio Inagaki² (1.Kochi University, 2.Japan Agency for Marine-Earth Science and Technology, 3.National Agriculture and Food Research Organization, 4.Japan Synchrotron Radiation Research Institute, 5.University of Tokyo, 6.Ehime University, 7.Hiroshima University, 8.High Energy Accelerator Research Organization)

11:45 AM - 12:00 PM

[MZZ41-05] Mechanism of large isotope fractionation of molybdenum (VI) between seawater and ferromanganese oxides

*Masato Tanaka¹, Daisuke Ariga², Teruhiko Kashiwabara³, Yoshio Takahashi¹ (1.Graduate School of Science, The University of Tokyo, 2.Graduate School of Science, Hiroshima University, 3.Japan Agency for Marine-Earth Science and Technology (JAMSTEC))

12:00 PM - 12:15 PM

[MZZ41-06] Factors controlling the distribution of ferromanganese nodules in the Minamitorishima EEZ

*Kentaro Nakamura¹, Ryo Shimomura¹, Koichi Horinouchi¹, Shiki Machida^2,3, Kazutaka Yasukawa^1,2, Koichiro Fujinaga^2,1, Yasuhiro Kato^1,2,3 (1.Department of Systems Innovation, School of Engineering, University of Tokyo, 2.ORCeNG, Chiba Institute of Technology, 3.JAMSTEC)

Session information