Distribution of late Quaternary calcareous nannofossils in DSDP Leg 96 sites

Sediments from holes drilled at 11 sites in the northern Gulf of Mexico during Deep Sea Drilling Project Leg 96 were analyzed for calcareous nannofossil content. All sediments recovered are Holocene and late Pleistocene in age and are within the Emiliania huxleyi Zone. The datum level represented by the lowest stratigraphic occurrence of dominant E. huxleyi occurs at two sites (Sites 615 and 619) and can be dated at approximately 84,000 yr. ago at Site 619. […]

在墨西哥湾北部11个钻孔采集的沉积物中，于深海钻探项目第96航次期间对钙质有孔虫含量进行了分析。所回收的沉积物均属于全新世和晚更新世，位于Emiliania huxleyi区。由优势种E. huxleyi在最低层位出现的基准层在两个地点（615号和619号地点）确定，并在619号地点可追溯至约84,000年前。