(Table 1) Thickness of the Holocene layer and sedimentation rates in the Atlantic Ocean

On the basis of planktonic foraminifera study, thickness of Holocene sediments has been ascertained in 60 sediment cores from various regions of the Atlantic Ocean. Ratios of species reflect warming of the upper water layer at the Pleistocene-Holocene boundary over the entire ocean. The Holocene boundary can be determined not only from microfaunal data, but also from lithologic ones including textural and structural features. Increase in CaCO3 contents in Holocene sediments as compared to Pleistocene is from 5-7% to 60-70% in different parts of the ocean.

基于浮游有孔虫（planktonic foraminifera）研究，本研究已明确大西洋不同区域60个沉积岩芯的全新世（Holocene）沉积物厚度。各物种的比值可反映全球大洋在更新世（Pleistocene）-全新世界线处的上层水体升温过程。全新世界线不仅可通过微古生物数据确定，还可借助岩性特征（包括结构与构造特征）进行判定。相较于更新世沉积物，全新世沉积物中的碳酸钙（CaCO₃）含量在大洋不同区域的增幅为5%~7%至60%~70%。