Annotated record of the detailed examination of Mn deposits from DSDP Site 99, Leg 11 (Core 99A-1)

The principal objective at this site was the recovery of Mesozoic sediment and a sample of Horizon B (or basement). The location chosen for drilling is about 40 nautical miles southeast of San Salvador in 4914 meters of water. Aside from the possibility of recovering the oldest Atlantic sediment, drilling at this site was expected to produce interesting samples for comparison stratigraphically and lithologically with those of Holes 4 and 5 of Leg 1.本站位的核心钻探目标为获取中生代沉积物与B层（或基底）样本。本次选定的钻探站位地处圣萨尔瓦多东南方向约40海里处，作业水深为4914米。除有望获取迄今已知最古老的大西洋沉积物外，本次钻探还预计将获取相关样本，用于与第1航次（Leg 1）第4号、第5号钻探孔的样本开展地层学与岩性学对比研究。