Chemical composition of basal metalliferous sediments from DSDP Leg 9

Basal metalliferous sediments from sites 77B, 80 and 81 of the Deep Sea Drilling Project represent mixtures of pelagic clay, biogenic ooze, and a metalliferous component of...深海钻探计划（Deep Sea Drilling Project）77B、80及81号站位的基底含金属沉积物，属于远洋黏土（pelagic clay）、生物软泥（biogenic ooze）与一类金属组分（metalliferous component）的混合体……