Outline of Session


Multidisciplinary and Interdisciplinary(M) / Intersection(IS)
M-IS46 Marine manganese deposits: Origin, growth processes, and environment

Short title Marine Mn Deposits
Oral presentation
May 27 AM1 (09:30 - 10:45) A05 Akira Usui  / Takashi Ito  / Katsuhiko Suzuki 
May 27 AM2 (11:00 - 11:45) A05 Akira Usui  / Takashi Ito  / Katsuhiko Suzuki 
Poster presentation
May 27 (Core Time 18:15 - 19:30) Convention Hall
Contact Akira Usui
Email a-usui@cc.kochi-u.ac.jp
Convener Akira Usui  / Yoshio Takahashi  / Takashi Ito  / Katsuhiko Suzuki 
Scope The ferromanganese oxide deposits are integrated precipitates of hydrogenetic iron and manganese oxide with minor useful metal elements. The recent exploration of the deposits using ROV mapping and deep-sea drill provide us with new findings on mineralogy, geochemistry, microbiology, and physical engineering. The session reposts the results of munti-disciplinary, multi-institutional investigation of origin, growth process, resource potential of hydrogenetic and diagenetic ferromanganese nodules and crusts in the Northwestern Pacific oceans

Time Presentation No Title Author Presenter Abstract
Oral Presentation   May 27 AM1 (09:30-10:45) A05                              to the top
09:30 - 09:45 MIS46-01 Marine manganese deposits: Status, subjects, and perspectives. USUI, Akira USUI, Akira English
09:45 - 10:00 MIS46-02 Geochemistry of ferromanganese crust: recent scientific results SUZUKI, Katsuhiko
GOTO, Kosuke T.
NOZAKI, Tatsuo
SUZUKI, Katsuhiko English
10:00 - 10:15 MIS46-03 Sr isotope composition of marine manganese deposits ITO, Takashi ITO, Takashi English
10:15 - 10:30 MIS46-04 Paleomagnetic study on the ferromanganese crusts recovered from northewest Pacific NOGUCHI, Atushi
NISHI, Keisuke
NOGUCHI, Atushi English
10:30 - 10:45 MIS46-05 Distribution of Co-rich ferromanganese crusts and evolution of the seamounts in the NW pacific OKAMOTO, Nobuyuki OKAMOTO, Nobuyuki English
Oral Presentation   May 27 AM2 (11:00-11:45) A05                              to the top
11:00 - 11:15 3-min talk in an oral session (MIS46-P01/MIS46-P02/MIS46-P03/MIS46-P04/MIS46-P05)
11:15 - 11:30 3-min talk in an oral session (MIS46-P06)
11:30 - 11:45 Discussion

Presentation No Title Author Presenter Abstract
Poster Presentation   May 27  Core Time (18:15-19:30) Convention Hall                    to the top
MIS46-P01 Concentration mechanisms of trace elements on ferromanganese nodule : Arsenic(As) and Antimony(Sb) UESUGI, Soichiro
TANAKA, Masato
UESUGI, Soichiro English
MIS46-P02 Depositional process of Fe-Mn oxide minerals at an active submarine volcano, in the Izu-Bonin Arc HINO, Hikari
USUI, Akira
HINO, Hikari English
MIS46-P03 Microstratigraphic description of ferromanganese crusts from the Ryusei Seamount, Kyusyu-Palau Ridge NISHI, Keisuke
USUI, Akira
IAN, Graham
NISHI, Keisuke English
MIS46-P04 The new method of description in hydrogenetic ferromanganese crusts NAKASATO, Yoshio
USUI, Akira
NISHI, Keisuke
NAKASATO, Yoshio English
MIS46-P05 A wide and abundant distribution of hydrogenetic ferromanganese oxide deposits over the NW Pacifi USUI, Akira
KISIMOTO, Kiyoyuki
USUI, Akira English
MIS46-P06 Comparison of the microscopic growth structure of the ferromanganese crusts with the glacial-interglacial cycles TAKAHASHI, Hironori
USUI, Akira
ITO, Takashi
TAKAHASHI, Hironori English