[MIS17-P05] Categorization and surficial conditions of manganese deposits on the Takuyo Daigo Seamount
Keywords:Takuyo-Daigo Seamount, manganese deposit, north-western Pacific
The video materials in this study were obtained at "Kairei" KR 16-13 cruise (October 8 - 23, 2016). In this cruise, nine diving operations were conducted from a depth of 1000 m to 5000 m, and samplings were attempted.
In this study, based on the topography of the ocean floor and developmental status of manganese oxides, the occurrences were classified into six types. We applied the categorization and clarified the surficial conditions of the seamount. As a result, manganese crust was observed on the steep slopes on the south slope of the Takuyo Daigo Seamount, and crusts covered with thin sediments layer and nodules were found on the gentle slope or flat plain.