• journal_title：Geology
• Contributor：Tobias Wolff ; Stefan Mulitza ; Helge Arz ; Jürgen Pätzold ; Gerold Wefer
• Publisher：Geological Society of America
• Date：1998-
• Format：text/html
• Language：en
• Identifier：10.1130/0091-7613(1998)026<0675:OIVCKT>2.3.CO;2
• journal_abbrev：Geology
• issn：0091-7613
• volume：26
• issue：8
• firstpage：675

d="p-1">Glacial-interglacial differences in δ¹⁸O values of Globigerinoides sacculifer have been mapped in the western and central tropical Atlantic using data from surface and core sediments. Glacial-interglacial differences in the western tropical Atlantic, if attributed to temperature changes only, are at odds with temperature reconstructions performed by CLIMAP. In the Ceara Rise region delta δ¹⁸O values exceeding 2‰ are recorded. They can only be partly attributed to changes in the precipitation-evaporation regime, i.e., higher salinities and ¹⁸O-enriched precipitation. An additional cooling of 1–2 °C as compared to CLIMAP's results is required to balance the δ¹⁸O record. Thus, temperature changes from glacial to modern times amount to 2– 3 °C in the tropical Atlantic off the northern coast of Brazil.