Major- and trace-element analyses of cherts, porcellanites, oozes, and clays ...

Analyses of 42 Cretaceous rock samples from Deep Sea Drilling Project (DSDP) Leg 32, in the northern Pacific, show that chert and porcellanite are enriched in Fe, Mn, P, Cu, Ba,...对北太平洋海域深海钻探计划（Deep Sea Drilling Project, DSDP）第32航次的42件白垩纪岩石样品进行分析后，结果表明燧石（chert）与瓷岩（porcellanite）富集铁（Fe）、锰（Mn）、磷（P）、铜（Cu）、钡（Ba）等元素。