JpGU Meeting 2019
Session outline| Multidisciplinary and Interdisciplinary (M) | ||
|---|---|---|
| Session Sub-category | General Geosciences, Information Geosciences & Simulations(GI) | |
| Session ID | M-GI34 | |
| Title | Marine Manganese Minerals | |
| Short Title | Marine Manganese Minerals | |
| Main Convener | Name | Akira Usui |
| Affiliation | Marine Core Research Center, 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 | Research and Development Center for Submarine Resources, 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 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. | |
| Presentation Format | Oral and Poster presentation | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 28 PM2 | ||||
| 15:30 - 15:45 | MGI34-01 | Challenges in microstratigraphy on the hydrogenetic ferromanganese crusts: Depositional processes and environments recorded as secular variations in microstructure, chemical and mineralogical compositions. | Akira Usui | |
| 15:45 - 16:00 | MGI34-02 | Abundant ferromanganese microparticles in oxic pelagic sediments | Go-Ichiro Uramoto | |
| 16:00 - 16:15 | MGI34-03 | Fractionation of Zirconium-Hafnium in ferromanganese crusts | Aya Sakaguchi | |
| 16:15 - 16:30 | MGI34-04 | Isotope fractionation of Mo-like elements during adsorption to ferromanganese oxides | Masato Tanaka | |
| 16:30 - 16:45 | MGI34-05 | Distinct distribution trends of arsenate and molybdate in marine ferromanganese nodules | Shitong Yang | |
| 16:45 - 17:00 | MGI34-06 | Mineralogical and geochemical characteristics of ferromanganese nodules in the Minamitorishima EEZ | Kentaro Nakamura | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 28 PM1 | |||
| MGI34-P01 | Microstratigraphy of hydrogenetic ferromanganese crusts in the Takuyo-Daisan and -Daigo seamounts | Akira Usui | |
| MGI34-P02 | Manganese Crusts with Super Smooth Surface (3S Manganese Crusts) observed at Takuyo No.3 Seamount, Northwest Pacific | Masaki Saito | |
| MGI34-P03 | Geochemical characteristics of the nuclei of ferromanganese nodules in the Minamitorishima EEZ | Daiki Terauchi | |
| MGI34-P04 | Micro X-ray fluorescence mapping for the whole cross-section of ferromanganese nodules in the western North Pacific | Shiki Machida | |