[M-ZZ41] 海底マンガン鉱床の科学：基礎から応用まで

[MZZ41-P03] 北東太平洋域で採取された形成初期のマンガン団塊の内部構造

*村山 雅史¹、矢生 晋介²、 河田 晃靖³、堀川 恵司⁴ (1.高知大学農林海洋科学部海洋資源科学科、2.高知大学海洋コア総合研究センター、3.高知大学理学部理学科、4.富山大学大学院理工学研究部(理学) )

キーワード：マンガン団塊、初期ステージ、内部構造、μフォーカスX線CT、北東太平洋

Small manganese nodules were found at the surface sediment of seamount in the northeastern Pacific during the R/V Hakuho-maru, KH-17-3 cruise. Nondestructive technique of micro focus X-ray computed tomography (μ-CT) allows visualization of the internal structure of these nodules. The thickness of covering Fe-Mn oxide layers in the nodules were a few millimeters which might be in the initial stage of formation of manganese nodule. Here we report the results of internal structures of these manganese nodules.