A new and prospective resource for scandium: Evidence from the geochemistry of deep-sea sediment in the western North Pacific Ocean

Kazutaka Yasukawa^*, Junichiro Ohta, Kazuhide Mimura, Erika Tanaka, Yutaro Takaya, Yoichi Usui, Koichiro Fujinaga, Shiki Machida, Tatsuo Nozaki, Koichi Iijima, Kentaro Nakamura, Yasuhiro Kato