[M-ZZ57] Marine Manganese Minerals: Science, Engineering and Application

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(Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology), Takashi Ito(Faculty of Education, Ibaraki University)

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 Co, Cu, Ni, REE, Pt and Te. 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, formation age of manganese deposits, and results of exploration and environmental impact studies will be discussed from viewpoints of geosciences, engineering, environmental sciences.

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[MZZ57-01] On-site experiment of hydrogenetic ferromanganese oxide precipitation and absorption for 12-15 years

*Akira Usui¹, Hikair Hino¹, Suzushima Suzushima¹, Naotaka Tomioka², Teruhiko Kashiwabara², Kyoko Yamaoka³, Michinari Sunamura⁴ (1.Marine Core Research Center, Kochi University, 2.Japan Agency of Earth and Marine Science a Technology, 3.Geological Survey of Japan, AIST, 4.Earth and Planetary Sciences, University of Tokyo)

[MZZ57-02] Adsorption structure of vanadium in marine ferromanganese oxides and its relation to host phase and isotope ratio of vanadium

*Masato Tanaka¹, Teruhiko Kashiwabara², Shinya Yamada³, Tadashi Hashimoto⁴, Oki Sekizawa⁵, Tomoya Uruga⁵, Yoshio Takahashi¹ (1.Graduate School of Science, The University of Tokyo, 2.Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 3.Graduate School of Science, Tokyo Metropolitan University, 4.Japan Atomic Energy Agency (JAEA), 5.Japan Synchrotron Radiation Research Institute (JASRI))

[MZZ57-03] Interlayer water structure in Na-, K- and Cs-birnessite

*Sujeong Park¹, Kideok D. Kwon¹ (1.Kangwon National Univ.)

[MZZ57-04] Atomistic simulations to resolve the structure complexity of hexagonal phyllomanganates

*Suyeon Han¹, Kideok D. Kwon¹ (1.Kangwon National University)

[MZZ57-05] Origin of ferromanganese nodules in the Minamitorishima EEZ

*Kentaro Nakamura¹, Daiki Terauchi¹, Ryo Shimomura¹, Shiki Machida², Kazutaka Yasukawa^1,2, Koichiro Fujinaga^2,1, Yasuhiro Kato^1,2 (1.Department of Systems Innovation, School of Engineering, University of Tokyo, 2.ORCeNG, Chiba Institute of Technology)

[MZZ57-06] Application of Edokko Mark I to biodiversity evaluation of deep-sea megafauna and amphipods at Arnold and Scripps guyots with cobalt-rich ferromanganese crusts in the Northwest Pacific

*IKEUCHI ERI¹, Akira Igichi¹, Hiroyuki Yokooka², Hideki Sugishima², Kazumasa Ikeda³, Ryuichi Miwa⁴, Miyuki Nishijima¹, Nozomu Iwasaki⁵, Yuichiro Tanaka¹, Taiga Kunishima^1,6, Shogo Kato⁷, Junpei Minatoya⁷, Yoshiaki Igarashi⁷, Nobuyuki Okamoto⁷, Atsushi Suzuki¹ (1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 2.IDEA Consultants, Inc., 3.Okamoto Glass Co., Ltd., 4.Kaiyo Engineering Co., Ltd., 5.Faculty of Geo-Environmental Science, Rissho University, 6.Wakayama Prefectural Museum of Natural History, 7.Japan Oil, Gas and Metals National Corporation)