Abstract
A stable oxygen isotope stratigraphy for the last 150.000 yr is established in sedimentary cores from the central Fram Strait. Radiometric ages obtained by the U/Th method in one core provide an absolute time framework for the oxygen isotope stratigraphy. The oxygen isotope record from substage 5a in the central Fram Strait is represented by lighter oxygen isotope ratios than substage 5e. This probably reflects lower salinities of the uppermost water column due to intense melting of icebergs and/or the supply of meltwater from adjacent landmasses rather than higher sea surface temperatures.
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References
Belanger, P. E.: 1982, ‘Paleo-oceanography of the Norwegian Sea during the past 130,000 years: Coccolithophorid and foraminiferal data’, Boreas 11, 29–36.
Duplessy, J.-C.: 1978, ‘Isotopic studies’, in J. Gribbin (ed.), Climatic Change, Cambridge University Press, New York, pp. 46–67.
Gard, G.: 1986, ‘Calcareous nannofossil biostratigraphy of late Quaternary Arctic sediments’, Boreas 15, 217–229.
Gard, G.: 1988a, ‘Late Quaternary calcareous nannofossil biozonation, chronology and paleo-oceanography in areas north of the Faeroe — Iceland Ridge’, Quat. Sci. Rev. 7, 65–73.
Gard, G.: 1988b, ‘Late Quaternary calcareous nannofossil biochronology and paleo-oceanography of Arctic and Subarctic seas’, Meddel. Stockholm Univ. Dept. Geol. 275, pp. 8–45.
Henrich, R., H. Kassens, E. Vogelsang, and J. Thiede: 1989, ‘The sedimentary facies record of glacial-interglacial cycles in the Norwegian Sea during the last 350 ka’, Mar. Geol. 86, 283–319.
Imbrie, J., J. D. Hays, D. G. Martinson, A. McIntyre, A. C. Mix, J. J. Morley, N. G. Pisias, W. L. Prell, and N. J. Shackleton: 1984, ‘The orbital theory of Pleistocene climate: Support from a revised chronology of the marine δ18O record’, in A. L. Berger, J. Imbrie, J. D. Hays, G. J. Kukla and B. Saltzman (eds.), Milankovitch and Climate, Reidel, Dordrecht, pp. 269–305.
Jones, G. A., and L. D. Keigwin: 1988, ‘Evidence from Fram Strait (78°N) for early deglaciation’, Nature 336, 56–59.
Labeyrie, L. D., and J.-C. Duplessy: 1985, ‘Changes in 13C/12C ratio during the last 140,000 years: High-latitude surface water records’, Palaeogeogr. Palaeoclimatol. Palaeoecol. 50, 217–240.
Labeyrie, L. D., J.-C. Duplessy, and P. L. Blanc: 1987, ‘Variations in mode and temperature of oceanic deep waters over the past 125,000 years’, Nature 327, 477–482.
Marquard, R. S., and D. L. Clark: 1987, ‘Pleistocene paleoceanographic correlations: Northern Greenland Sea to central Arctic Ocean’, Mar. Micropaleont. 12, 325–341.
Morris, T. H.: 1988, ‘Stable isotope stratigraphy of the Arctic Ocean: Fram Strait to central Arctic’, Palaeogeogr. Palaeoclimatol. Palaeoecol. 64, 201–219.
Nowaczyk, N. R., and M. Baumann: in prep., ‘Combined magneto- and nannofossil stratigraphy for sediment cores from the Arctic Ocean’, to be submitted to Deep-Sea Res.
Shackleton, N. J., and N. D. Opdyke: 1973, ‘Oxygen isotope and paleomagnetic stratigraphy of equatorial Pacific core V28-238’, Quat. Res. 3, 39–55.
Spielhagen, R. F., S. Pfirman, and J. Thiede, (eds.): 1988, Geoscientific Report on the ARK IV/3 Expedition of the PFVS POLARSTERN Summer 1987 to the Central Eastern Arctic Basin, Geol.-Paläont. Institut, Universität Kiel, Berichte 24, 166 p.
Streeter, S. S., P. E. Belanger, T. B. Kellogg, and J.-C. Duplessy: 1982, ‘Late Pleistocene paleo-oceanography of the Norwegian — Greenland Sea: Benthonic foraminiferal evidence’, Quat. Res. 18, 72–90.
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Köhler, S.E.I., Spielhagen, R.F. (1990). The Enigma of Oxygen Isotope Stage 5 in the Central Fram Strait. In: Bleil, U., Thiede, J. (eds) Geological History of the Polar Oceans: Arctic versus Antarctic. NATO ASI Series, vol 308. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2029-3_28
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DOI: https://doi.org/10.1007/978-94-009-2029-3_28
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