Chemical composition in Pb and Zn of manganese deposits from the Pacific Ocean

Manganese nodules retrieved by early cruises of the R/V Hakuho Maru in the Pacific Ocean and the R/V Umikata Maru in the Indian Ocean have been chemically analysed for their...由太平洋海域R/V白凤凰号（R/V Hakuho Maru）早期科考航次、印度洋海域R/V海方号（R/V Umikata Maru）早期科考航次所采集的锰结核（Manganese nodules），已针对其……开展了化学分析。