Nannoliths and paleobiogeographic census from DSDP Site 56-435

Calcareous nannofossils were encountered at only one of the sites (435) drilled during DSDP Leg 56. Cores from Hole 435A yield fairly diverse early and late Pliocene...仅在深海钻探计划（Deep Sea Drilling Project，DSDP）第56航次钻探的435号站位中发现了钙质超微化石（Calcareous nannofossils）。435A钻孔的岩芯产出了种类颇为丰富的上新世早期与晚期的化石组合……