[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-P01] Sediment property in the exploration area for cobalt-rich crusts

*Kyoko Yamaoka¹, Atsushi Suzuki¹, Yuki Ota¹, Yuichiro Tanaka¹, Akifumi Shimamoto², Tatsuo Fukuhara², Junpei Minatoya³, Shogo Kato³, Yoshiaki Igarashi³, Nobuyuki Okamoto³ (1.Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, 2.KANSO Co.,Ltd., 3.Japan Oil, Gas and Metals National Corporation (JOGMEC))

[MZZ57-P02] GEOCHEMICAL AND MINERALOGICAL CHARACTERIZATION OF THE MOLANGO MN DEPOSITS: CONSTRAITS ON GENESIS

*Joseph Madondo¹, Carles Canet^2,1, Eduardo Gonzalez-Partida⁴, Augusto Antonio Rodriguez-Diaz¹, Fernando Nuñez-Useche³ (1.Institute of Geophysiscs (UNAM) , 2.Centre for Atmospheric Sciences (UNAM), 3.Institute of Geology (UNAM), 4.Centre for Geosciences (UNAM))

[MZZ57-P03] Relationship between isotope fractionation and valence of tellurium adsorbed on the Fe-Mn oxides from seawater

*Yusuke Fukami¹, Teruhiko Kashiwabara², Hiroshi Amakawa³, Takazo Shibuya², Akira Usui⁴, Katsuhiko Suzuki² (1.Gakushuin University, 2.Japan Agency for Marine-Earth Science and Technology, 3.Atmosphere and Ocean Research Institute The University of Tokyo, 4.Marine Core Research Center, Kochi University)

[MZZ57-P04] Formation process of different types of manganese nodules collected on seamounts in the Northeast Pacific

Wataru Katanoda¹, *Masafumi MURAYAMA¹, Akira Usui², Takeyasu Yamagata³, Hiroyuki Matsuzaki³ (1.Faculty of Agriculture and Marine Science, Kochi University, 2.Center for advanced Marine Core Research, Kochi University, 3.The University Museum,The University of Tokyo)