12:00 PM - 12:15 PM
[MZZ41-06] Factors controlling the distribution of ferromanganese nodules in the Minamitorishima EEZ
Keywords:ferromanganese nodules, Minamitorishima EEZ, distribution, underlying sediments, deep-sea currents
Ferromanganese nodules have long been studied extensively, especially those occurring between the Clarion and Clipperton fracture zones . However, many important questions still remain unanswered regarding the formation and distribution of the nodules. In particular, factors controlling the distribution of ferromanganese nodules have been one of the most important problems to solve. Correlation between nodule distribution and deep-sea currents has long been pointed out in the southern Pacific and southern Indian Oceans [6, 7]. Moreover, it has been considered that hiatus of the underlying sediments, caused by deep-sea currents, is also related to the occurrence of ferromanganese nodules [6, 8].
In this presentation, we will discuss the factors controlling the distribution of ferromanganese nodules in the Minamitorishima EEZ in relation to underlying sediments and deep-sea currents.
 Petersen et al. (2016) Marine Policy, 70, 175–187,  Hein et al. (2013) Ore Geology Reviews, 51, 1–14,  Machida et al. (2016) Geochemical Journal, 50, 539–555,  JAMSTEC press release, August 26, 2016,  ISA (2012) Briefing Paper 01/12,  Kennett and Watkins (1975) Science, 188, 1011–1013,  Wright et al. (2005) New Zealand Journal of Geology and Geophysics, 48, 27–41,  Usui et al. (1987) Marine Geology, 74, 237–275.