Abstract
Oxygen-18 records of benthic foraminifera from northeastern Atlantic and Southern Ocean cores are significantly different. This difference indicates that the deep water in the northeastern Atlantic Ocean during the last Ice Age was at least 1.3 °C cooler than in modern times. We show here that the occurrence of such a cold deep water mass implies that the North Atlantic was a sink for dense surface waters, replacing the Norwegian Sea where ice cover and stratification prevented the formation of deep water.
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References
Climap Project Members Science 191, 1131 (1976).
Worthington, L. V. in On the North Atlantic Circulation, 77–110 (John Hopkins University Press, London, 1976).
Duplessy, J. C., Chenouard, L. & Vila, F. Science 188, 1208 (1975).
Kellogg, T. B. Geol. Soc. Am. Mem. 145, 77–110 (1976).
Kellogg, T. B., Duplessy, J. C. & Shackleton, N. J. Boreas 7, 61 (1978).
Streeter, S. S. Quat. Res. 3, 131 (1973).
Schnitker, D. Nature 248, 385 (1974).
Streeter, S. S. & Shackleton, N. J. Science 203, 168 (1979).
Pujol, C., Duprat, J., Gonthier, E., Peypouquet, J.P. & Pujos-Lamy, A. Bull. I.G.B.A. 16, 65 (1974).
Pujos-Lamy, A. Revta esp. Micropaleontol. 5, 213 (1973).
Duplessy, J. C. in Climatic Change (ed. Gribbin, J.) 46–47 (Cambridge University Press, 1978).
Duplessy, J. C., Lalou, C. & Vinot, A. C. Science 168, 250 (1970).
Shackleton, N. J. & Opdyke, N. Quat. Res. 3, 39 (1973).
Emiliani, C. J. geol. 63, 538 (1955).
Shackleton, N. J. in The Fate of Fossil Fuel CO2 in the Oceans (eds Andersen, N. R. & Malahoff, A.) 401–427 (Plenum, New York, 1977).
Broecker, W. S. & Van Donk, J. Rev. Geophys. Space Phys. 8, 169 (1970).
Emiliani, C. Ann. N.Y. Acad. Sci. 95, 521 (1961).
Ruddiman, W.F. & McIntyre, A. Geol. Soc. Am. Mem. 145, 111–146 (1976).
Craig, H. & Gordon, L. I. in Stable Isotopes in Oceanographic Studies and Paleotemperatures 9–131 (Consiglio Nazionale delle Richerche, Pisa, 1965).
Shackleton, N.J. in Les Méthodes Quantitatives d'Études des Variations du Climat au cours du Pléistocène (ed. Labeyrie, J.) 203–209 (CNRS, Paris, 1974).
Ninkovich, D. & Shackleton, N.J. Earth planet. Sci. Lett. 27, 20 (1975).
Peng, T.H., Broecker, W.S., Kipphut, G. & Shackleton, N.J. in The Fate of Fossil Fuel CO2 in the Oceans (eds Andersen, N.R. & Malahoff, A.) 355–374 (Plenum, New York, 1977).
Sachs, H. M. J.geophys. Res. 81, 3141 (1976).
Ledbetter, M. T. & Johnson, D. A. Science 194, 837 (1976).
Alvinerie, J., Caralp, M., Latouche, C., Moyes, J. & Vigneaux, M. Oceanologica Acta 1, 87 (1978).
McIntyre, A. et al. Geol. Soc. Am. Mem. 145, 43–76 (1976).
Weyl, P. K. Met. Monogr. 8, 37 (1968).
Newell, R. E. Quat. Res. 4, 117 (1974).
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Duplessy, JC., Moyes, J. & Pujol, C. Deep water formation in the North Atlantic Ocean during the last ice age. Nature 286, 479–482 (1980). https://doi.org/10.1038/286479a0
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DOI: https://doi.org/10.1038/286479a0
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