Multidisciplinary and Interdisciplinary (M)
Session Sub-category Others(ZZ)
Session ID M-ZZ44
Title Marine Manganese Minerals: Depositional environments, exploration, and development
Short Title Marine Manganese Minerals
Main Convener Name Akira Usui
Affiliation Marine Core Research Institute, Kochi University
Co-Convener 1 Name Yoshio Takahashi
Affiliation Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo
Co-Convener 2 Name Katsuhiko Suzuki
Affiliation Submarine Resources Research Center, Japan Agency for Marine-Earth Science and Technology
Co-Convener 3 Name Takashi Ito
Affiliation Faculty of Education, Ibaraki University
Session Language 
J
Scope 
Marine manganese deposits forming nodules, crusts, and massive aggregates are known as potential resources for strategic metals as well as geological archives of surface environments. However, the controlling parameters of variations in chemical and mineralogical compositions on regional and temporal scales have not been well understood yet. In this session, various factors in growth processes, enrichment and circulation of metals, paleoenvironment, formation age are discussed with the results of exploration and environmental impact studies from viewpoints of geosciences and engineering.
Presentation Format Oral and Poster presentation
Time Presentation No Title Presenter
Oral Presentation May 29 AM1
9:00 - 9:15 MZZ44-01 Submicron-scale petrography of hydrogenetic ferromanganese crusts for growth processes and environments Akira Usui
9:15 - 9:30 MZZ44-02 Age estimate using ultrafine scale magnetostratigraphy on ferromanganese crusts and development of methodology Hirokuni Oda
9:30 - 9:45 MZZ44-03 Rhythmical laminations of Ferromanganese Crust reveals a 6.5 million-year record of eolian dust flux to the Northwest Pacific Hitoshi Hasegawa
9:45 - 10:00 MZZ44-04 Helium isotopes and beryllium-10 dating of manganese crust in the central Pacific Ocean Yuji Sano
10:00 - 10:15 MZZ44-05 Systematic understanding of solid-liquid partitioning and isotope fractionation based on the elucidation of adsorbed species of barium on manganese oxides Sota Ueno
10:15 - 10:30 MZZ44-06 Distribution of Fe and Mn in red clay on the deep seafloor of the northwestern Pacific Masafumi MURAYAMA
Presentation No Title Presenter
Poster Presentation May 29 PM3
MZZ44-P01 Microstructures observed on the surface of ferromanganese crusts at the Takuyo-Daigo Seamount Makoto Miyajima
MZZ44-P02 Ferromanganese Crusts - Reconstruction of Dissolved Oxygen Concentration in the Pacific Ocean since the Miocene Masanobu Yamamoto
MZZ44-P03 Occurrence, composition, microstructure and growth age of the ferromanganese crusts in the Minami Seamount, the Ogasawara Plateau Akira Usui
MZZ44-P04 Metal release from submarine manganese deposits assuming mining condition Kyoko Yamaoka