[J] Poster

M (Multidisciplinary and Interdisciplinary) » M-GI General Geosciences, Information Geosciences & Simulations

[M-GI34] Marine Manganese Minerals

Tue. May 28, 2019 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

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(Research and Development Center for Submarine Resources, 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 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.

[MGI34-P01] Microstratigraphy of hydrogenetic ferromanganese crusts in the Takuyo-Daisan and -Daigo seamounts

*Akira Usui¹, An-na Nagaoka², Michiko Kawamura¹ (1.Marine Core Research Center, Kochi University, 2.Graduate School of Science, Kochi University)

[MGI34-P02] Manganese Crusts with Super Smooth Surface (3S Manganese Crusts) observed at Takuyo No.3 Seamount, Northwest Pacific

*Masaki Saito¹, Takashi Ito² (1.Graduate School of Education,Ibaraki University, 2.Department of Education,Ibaraki University)

[MGI34-P03] Geochemical characteristics of the nuclei of ferromanganese nodules in the Minamitorishima EEZ

*Daiki Terauchi¹, Kentaro Nakamura¹, Ryo Shimomura¹, Koichi Horinouchi¹, Kazutaka Yasukawa^1,2, Shiki Machida^2,1, Yasuhiro Kato^1,2,3 (1.Department of Systems Innovation, School of Engineering, University of Tokyo, 2.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 3.Frontier Research Center for Energy and Resources, School of Engineering, The University of Tokyo)

[MGI34-P04] Micro X-ray fluorescence mapping for the whole cross-section of ferromanganese nodules in the western North Pacific

*Shiki Machida^1,2, Ryo Shimomura², Koichi Horinouchi², Kentaro Nakamura², Tetsu Kogiso³, Yasuhiro Kato^2,1 (1.Ocean Resources Research Center for Next Generation, Chiba Institute of Technology, 2.University of Tokyo, 3.Kyoto University)

Session information