Abstract
The last deglaciation in two deep-sea sediment cores recovered from the Southern Indian Ocean is studied and compared with two records obtained from the North Atlantic. The chronology has been established by accelerator mass spectrometric (AMS) 14C dating of planktic foraminifers. Climatic changes are inferred based on δ 180 measurements in planktic foraminifers and on sea surface temperatures (SST) obtained by means of faunal and floral transfer functions. In the North Atlantic, the last deglaciation began at about 15 –14.5 ka, Holocene conditions were reached at about 12.5 – 12.0 ka and a cold interval occurred between 11.0 and 10.0 ka (Younger Dryas Event). In the Southern Ocean, the last deglaciation began between 16.5 and 13.0 ka and Holocene temperatures were reached at about 12.0 ka. Both Southern Ocean records present transitory oscillations: Core MD 84–551 (55°S) exhibits a temporary increase in δ 18O dated at about 10.5 ka (but it is still unresolved if this feature is due to SST changes or other regional causes) while Core MD 84–527 (44°S) is characterized by a cold event at about 11.6 ka (only in the SST records) and a prominent warm optimum between 10.5 and 8.0 ka (in the SST and δ 18O records). More data are needed to determine if there was a time lag between the last deglaciations in both hemispheres and if common transitory oscillations can be recognized.
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Andrée, M., J. Beer, H. P. Loetscher, E. Moor, H. Oeschger, G. Bonani, H. J. Hofmann, E. Morenzoni, M. Nessi, M. Suter, and W. Wölfli: 1986, ‘Dating polar ice by 14C accelerator mass spectrometry’, Radiocarbon 28, 417–423.
Arnold, M., E. Bard, P. Maurice, and J.-C. Duplessy: 1987, ‘C-14 dating with the Gif-sur-Yvette Tandetron accelerator: Status report’, Nucl. Instr. Meth. Phys. Res. B29, 120–123.
Bard, E., M. Arnold, J. Duprat, J. Moyes, and J.-C. Duplessy: 1987a, ‘Reconstruction of the last deglaciation: Deconvolved records of δ18O profiles, micropaleontological variations and accelerator mass spectrometric 14C dating’, Climate Dynamics 1, 101–112.
Bard, E., M. Arnold, P. Maurice, J. Duprat, J. Moyes, and J.-C. Duplessy: 1987b, ‘Retreat velocity of the north Atlantic polar front during the last deglaciation determined by 14C accelerator mass spectrometry’, Nature 328, 791–794.
Bard, E.: 1988, ‘Correction of AMS-14C ages measured in planktonic foraminifera: Paleoceanographic implications’, Paleoceanography 3, 635–645.
Bard, E., R. G. Fairbanks, M. Arnold, P. Maurice, J. Duprat, J. Moyes, and J.-C. Duplessy: 1989a, ‘Sea-level estimates during the last deglaciation based on δ18O and accelerator mass spectrometry 14C ages measured on Globigerina bulloides’, Quat. Res. 31, 381–391.
Bard, E., L. D. Labeyrie, M. Arnold, M. Labracherie, J. J. Pichon, J. Duprat, and J.-C. Duplessy: 1989b, ‘AMS-14C ages measured in deep sea cores from the Southern Ocean: Implications for sedimentation rates during isotope stage 2’, Quat. Res. 31, 309–317.
Berger, A. L.: 1978, ‘Long-term variations of caloric insolation resulting from the earth’s orbital elements’, Quat. Res. 35, 215–240.
Broecker, W. S., M. Andrée, W. Wölfli, H. Oeschger, G. Bonani, J. P. Kennett, and D. Peteet: 1988, ‘The chronology of the last deglaciation: Implications to the cause of the Younger Dryas event’, Paleoceanography 3, 1–19.
Burckle, L. H.: 1984, ‘Diatom distribution and paleoceanographic reconstruction in the southern ocean — present and last glacial maximum’, Mar. Micropal. 9, 241–261.
Cooke, D. W., and J. D. Hays: 1982, ‘Estimates of Antarctic Ocean seasonal sea-ice cover during glacial intervals’, in C. Craddock (ed.), Antarctic Geoscience, University of Wisconsin Press, Madison, pp. 1017–1025.
Duplessy, J.-C., M. Arnold, P. Maurice, E. Bard, J. Duprat, and J. Moyes: 1986, ‘Direct dating of the oxygen-isotope record of the last deglaciation by 14C accelerator mass spectrometry’, Nature 320, 350–352.
Gamberoni, L., J. Geronimi, P.-F. Jeannin, and J. F. Murail: 1982, ‘Study of frontal zones in the Crozet-Kerguelen region’, Oceanol. Acta 5, 289–299.
Hays, J. D., J. A. Lozano, N. J. Shackleton, and G. Irving: 1976, ‘Reconstruction of the Atlantic and the western Indian Ocean sectors of the 18,000 B.P. Antarctic Ocean’, in R. M. Cline, and J. D. Hays (eds.), Investigation of Late Quaternary Paleoceanography and Paleoclimatology, Geol. Soc. Amer. Memoir 145, pp. 337–372.
Hutson, R., and W. L. Prell: 1980, ‘A paleoecological transfer function F 1–2, for Indian Ocean planktonic foraminifera’, J. Paleont. 54, 381–399.
Imbrie, J., and N. G. Kipp: 1971, ‘A new micropaleontological method for quantitative paleoclimatology: Application to a late Pleistocene Caribbean core’, in K. K. Turekian (ed.), The Late Cenozoic Glacial Ages, Yale University Press, New Haven, pp. 71–181.
Jouzel, J., C. Lorius, J. R. Petit, C. K. Genthon, N. I. Barkov, V. M. Kotlyakov, V. M. Petrov: 1987a, ‘Vostok ice core: A continuous isotope temperature record over the last climatic cycle (160,000 years)’, Nature 329,403–408.
Jouzel, J., C. Lorius, L. Merlivat, and J. R. Petit: 1987b, ‘Abrupt climatic changes: The Antarctic record during the late Pleistocene’, in W. H. Berger, and L. D. Labeyrie (eds.), Abrupt Climatic Change, Reidel, Dordrecht, pp. 235–245.
Labeyrie, L. D., J. J. Pichon, M. Labracherie, P. Ippolito, J. Duprat, and J.-C. Duplessy: 1986, ‘Melting history of Antarctica during the past 60,000 years’, Nature 322, 701–706.
Labracherie, M., E. Bard, L. D. Labeyrie, J. J. Pichon, M. Arnold, J. Duprat, and J.-C. Duplessy: 1988, ‘First direct dating of the last deglaciation in the Southern Ocean by 14C accelerator mass spectrometry’, EOS Trans. Amer. Geophys. Union 69, 382–383.
Labracherie, M., E. Bard, L. D. Labeyrie, J. J. Pichon, M. Arnold, J. Duprat, and J.-C. Duplessy: in press, ‘The last deglaciation in the Southern Ocean’, Paleoceanography.
Mix, A. C: 1987, ‘The oxygen-isotope record of glaciation’, in W. F. Ruddiman, and H. E. Wright Jr. (eds.), North America and Adjacent Oceans During the Last Deglaciation, The Geology of North America, Vol. K-3, Geol. Soc. Amer., Boulder, pp. 111–135.
Morley, J. J., W. L. Prell, and W. Howard: 1988, ‘Response of the Southern Ocean over the Milankovitch frequency band’, EOS Trans. Amer. Geophys. Union 69, 299 (abstr.).
Pichon, J. J., M. Labracherie, L. D. Labeyrie, and J. Duprat: 1987, ‘Transfer functions between diatom assemblages and surface hydrology in the southern ocean’, Palaeogeogr. Palaeoclimat. Palaeoecol 61, 79–95.
Pichon, J. J., L. D. Labeyrie, M. Labracherie, and J. Duprat: submitted, ‘Surface water temperature changes in the high latitudes of the Southern Hemisphere over the last 125 kyr’.
Ruddiman, W. F., and J.-C. Duplessy: 1985, ‘Conference on the last deglaciation: Timing and mechanism’, Quat. Res. 23, 1–17.
Shemesh, A., L. H. Burckle, and P. N. Froelich: 1989, ‘Dissolution and preservation of Antarctic diatoms and the effect on sediment thanatocoenoses’, Quat. Res. 31, 288–308.
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Bard, E. et al. (1990). The Last Deglaciation in the Southern and Northern Hemispheres: A Comparison Based on Oxygen Isotope, Sea Surface Temperature Estimates, and Accelerator 14C Dating from Deep-Sea Sediments. 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_22
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DOI: https://doi.org/10.1007/978-94-009-2029-3_22
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