Atlantic Ocean core data, about 400K years, SPECMAP. This archive gives Paleoclimate data for a selection of Atlantic cores. It has O-18 data for about 16 cores covering about 400,000 years. Age models for the cores are given. Derived sea surface temperature estimates for 15 cores are given. Delta 13-C data is available for selected cores. Planktic formam counts and factor loadings are given for the cores. Another file includes solar orbital data. This is SPECMAP archive No. 1, 28 Mar 1989.