Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-26T05:55:23.415Z Has data issue: false hasContentIssue false

Abrupt Cooling of Antarctic Surface Waters and Sea Ice Expansion in the South Atlantic Sector of the Southern Ocean at 5000 cal yr B.P.

Published online by Cambridge University Press:  20 January 2017

David A. Hodell
Affiliation:
Department of Geological Sciences, University of Florida, Gainesville, Florida, 32611
Sharon L. Kanfoush
Affiliation:
Department of Geological Sciences, University of Florida, Gainesville, Florida, 32611
Aldo Shemesh
Affiliation:
Department of Environmental Sciences and Energy Research, Weizmann Institute of Science, Rehovot, 76100, Israel
Xavier Crosta
Affiliation:
Department of Environmental Sciences and Energy Research, Weizmann Institute of Science, Rehovot, 76100, Israel
Christopher D. Charles
Affiliation:
Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California, 92093
Thomas P. Guilderson
Affiliation:
Lawrence Livermore National Laboratory, Livermore, California, 94550

Abstract

Antarctic surface waters were warm and ice free between 10,000 and 5000 cal yr B.P., as judged from ice-rafted debris and microfossils in a piston core at 53°S in the South Atlantic. This evidence shows that about 5000 cal yr B.P., sea surface temperatures cooled, sea ice advanced, and the delivery of ice-rafted detritus (IRD) to the subantarctic South Atlantic increased abruptly. These changes mark the end of the Hypsithermal and onset of Neoglacial conditions. They coincide with an early Neoglacial advance of mountain glaciers in South America and New Zealand between 5400 and 4900 cal yr B.P., rapid middle Holocene climate changes inferred from the Taylor Dome Ice Core (Antarctica), cooling and increased IRD in the North Atlantic, and the end of the African humid period. The near synchrony and abruptness of all these climate changes suggest links among the tropics and both poles that involved nonlinear response to gradual changes in Northern Hemisphere insolation. Sea ice expansion in the Southern Ocean may have provided positive feedback that hastened the end of the Hypsithermal and African humid periods in the middle Holocene.

Type
Research Article
Copyright
University of Washington

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Allen, C.P, and Warnke, D.A History of ice rafting at Leg 114 sites, subantarctic South Atlantic. Proceedings of the Ocean Drilling Program, Scentific Results 114, (1991). 599 607.Google Scholar
Andrews, J.T, Smith, L.M, Preston, R, Cooper, T, and Jennings, A.E Spatial and temporal paterns of iceberg rafting (IRD) along the East Greenland margin, ca. Journal of Quaternary Science 12, (1997). 1 13.3.0.CO;2-T>CrossRefGoogle Scholar
Bard, E Correction of accelerator mass spectrometry 14C ages measured in planktic foraminifera: Paleoceanographic implications. Paleoceanography 3, (1988). 635 645.Google Scholar
Berger, A Long-term variations of daily insolation and Quaternary climatic change. Journal of Atmospheric Sciences 35, (1978). 2362 2367.2.0.CO;2>CrossRefGoogle Scholar
Bond, G.C, and Lotti, R Iceberg discharge into the North Atlantic on millennial time scales during the last glaciation. Science 267, (1995). 1005 1010.CrossRefGoogle ScholarPubMed
Bond, G.C, Showers, W, Cheseby, M, Lotti, R, Almasi, P, deMenocal, P, Priore, P, Cullen, H, Hajdas, I, and Bonani, G A pervasive millennial-scale cycle in North Atlantic Holocene and glacial climates. Science 278, (1997). 1257 1266.Google Scholar
Cias, P, Petit, J.R, Jouzel, J, Lorius, C, Barkov, N.I, Lipenkov, V, and Nicolaiev, V Evidence for an early Holocene climatic optimum in the Antarctic deep ice-core record. Climate Dynamics 6, (1992). 169 177.CrossRefGoogle Scholar
Clapperton, C.M, and Sugden, D.E Holocene glacier fluctuations in South America and Antarctica. Quaternary Science Reviews 7, (1988). 185 198.CrossRefGoogle Scholar
Claussen, M, Kubatzki, C, Brovkin, V, Ganopolski, A, Hoelzmann, P, and Pachur, H.-J Simulation of an abrupt change in Saharan vegetation in the mid-Holocene. Geophysical Research Letters 14, (1999). 2037 2040.Google Scholar
Clement, A.C, Seager, R, and Cane, M.A Orbital controls on the El Nino/Southern Oscillation and the tropical climate. Paleoceanography 14, (1999). 441 456.CrossRefGoogle Scholar
Crosta, X, Pichon, J.-J, and Burckle, L.H Application of modern analog technique to marine Antarctic diatoms: Reconstruction of maximum sea-ice extent at the last glacial maximum. Paleoceanography 13, (1998). 284 297.Google Scholar
Deevey, E.S, and Flint, R.F Postglacial Hypsithermal interval. Science 125, (1957). 182 184.CrossRefGoogle ScholarPubMed
deMenocal, P, Ortiz, J, Guilderson, T, Adkins, J, Sarnthein, M, Baker, L, and Yarusinsky, M Abrupt onset and termination of the African humid period: Rapid climate response to gradual insolation forcing. Quaternary Science Reviews 19, (2000). 347 361.Google Scholar
Denton, G.H, and Karlen, W Holocene climatic variations—Their patterns and possible cause. Quaternary Research 3, (1973). 155 205.Google Scholar
Domack, E, Leventer, A, Dunbar, R, Taylor, F, Brachfeld, S, and Sjunneskog, C Chronology of the Palmer Deep site, Antarctic Peninsula: A Holocene palaeoenvironmental reference for the circum-Antarctic. The Holocene 11, (2001). 1 9.Google Scholar
Francois, R.F, Altabet, M.A, Yu, E.-F, Sigman, D.F, Bacon, M.P, Frank, M, Bohrmann, G, Bareille, G, and Labeyrie, L.D Contribution of Southern Ocean surface-water stratification to low atmospheric pCO2 concentrations during the last glacial period. Nature 389, (1997). 929 935.Google Scholar
Ganopolski, A, Kubatzki, C, Claussen, M, Brovkin, V, and Petoukhov, V The influence of vegetation–atmosphere–ocean interaction on climate during the mid-Holocene. Science 220, (1998). 1916 1919.CrossRefGoogle Scholar
Heusser, C.L Polar perspective of late-Quaternary climates in the southern hemisphere. Quaternary Research 32, (1989). 60 71.Google Scholar
Heusser, C.L Deglacial paleoclimate of the American sector of the Southern Ocean: Late Glacial–Holocene records from the latitude of Canal Beagle (55°S), Argentine Tierra del Fuego. Palaeogeography, Palaeoclimatology, Palaeoecology 141, (1998). 277 301.Google Scholar
Johnsen, S.J, Dansgaard, W, Clausen, H.B, and Langway, C.C Oxygen isotope profiles through the Antarctic and Greenland ice sheets. Nature 235, (1972). 429 434.Google Scholar
Juillet-Leclerc, A, and Labeyrie, L.D Temperature dependence of the oxygen isotopic fractionation between diatom silica and water. Earth and Planetary Science Letters 84, (1987). 69 74.Google Scholar
Kanfoush, S.L, Hodell, D.A, Charles, C.D, Guilderson, T.P, Mortyn, P.G, and Ninnemann, U.S Millennial-scale instability of the Antarctic ice sheet during the last glaciation. Science 288, (2000). 1815 1818.Google Scholar
Kanfoush, S.L, Hodell, D.A, Charles, C.D, Janecek, T.R, and Rack, F.R Comparison of ice-rafted debris and physical properties in ODP Site 1094 (South Atlantic) with the Vostok ice core over the last four climatic cycles. Palaeogeography, Palaeoclimatology, Palaeoecology (2001). Google Scholar
Keigwin, L.D Jr. The Little Ice Age and Medieval Warm Period in the Sargasso Sea. Science 274, (1996). 1504 1508.Google Scholar
Masson, V, Vimeux, F, Jouzel, J, Morgan, V, Delmotto, M, Ciais, P, Hammer, C, Johnsen, S, Lipenkov, V, Mosley-Thompson, E, Petit, J.-R, Steig, E.J, Stievenard, M, and Vaikmae, R Holocene climate variability in Antarctica based on 11 ice-core isotopic records. Quaternary Research 54, (2000). 348 358.Google Scholar
McIntyre, A, and Molfino, B Forcing of Atlantic equatorial and subpolar millennial cycles by precession. Science 274, (1996). 1867 1870.CrossRefGoogle ScholarPubMed
O'Brien, S.R, Mayewski, P.A, Meeker, L.D, Meese, D.A, Twicker, M.S, and Whitlow, S.I Complexity of Holocene climate as reconstructed from a Greenland ice core. Science 270, (1995). 1962 1964.Google Scholar
Porter, S.C Onset of Neoglaciation in the Southern Hemisphere. Journal of Quaternary Science. 15, (2000). 395 408.Google Scholar
Porter, S.C, and Denton, G.H Chronology of Neoglaciation in the North American cordillera. American Journal of Science 265, (1967). 177 210.CrossRefGoogle Scholar
Rodbell, D.T, Seltzer, G.O, Anderson, D.M, Abbott, M.B, Enfield, D.B, and Newman, J.H An ∼15,000-year record of El Nino-driven alluviation in southwestern Equador. Science 283, (1999). 516 520.CrossRefGoogle Scholar
Rosenthal, Y, Dahan, M, and Shemesh, A Southern Ocean contributions to glacial–interglacial changes of atmospheric pCO2: An assessment of carbon isotope records in diatoms. Paleoceanography 15, (2000). 65 75.Google Scholar
Sandweiss, D, Richardson, J, Reitz, E, Rollins, H, and Maasch, K Geoarchaeological evidence from Peru for a 5000 year B.P. onset of El Nino. Science 273, (1996). 1531 1533.Google Scholar
Shemesh, A, Charles, C.D, and Fairbanks, R.G Oxygen isotopes in biogenic silica: Global changes in ocean temperature and isotopic composition. Science 256, (1992). 1434 1436.Google Scholar
Shemesh, A, Macko, S.A, Charles, C.D, and Rau, G.H Isotopic evidence for reduced productivity in the glacial Southern Ocean. Science 262, (1993). 407 410.Google Scholar
Shemesh, A, Burckle, L.H, and Hays, J.D Late Pleistocene oxygen isotope records of biogenic silica from the Atlantic sector of the Southern Ocean. Paleoceanography 10, (1995). 179 196.CrossRefGoogle Scholar
Shipboard Scientific Party, Leg 177 summary: Southern Ocean paleoceanography. Proceedings Ocean Drilling Program, Initial Reports 177, (1999). 1 67.Google Scholar
Sigman, D.M The isotopic composition of diatom-bound nitrogen in Southern Ocean sediments. Paleoceanography 14, (1999). 118 134.Google Scholar
Simmonds, I, and Jacka, T.H Relationship between the interannual variability of Antarctic sea-ice and the Southern Oscillation index. Journal of Climate 8, (1995). 637 647.Google Scholar
Singer, A.J, and Shemesh, A Climatically linked carbon isotope variation during the past 430,000 years in Southern Ocean sediments. Paleoceanography 10, (1995). 171 177.Google Scholar
Smith, D.G, Ledbetter, M.T, and Ciesielski, P.F Ice-rafted volcanic ash in the South Atlantic sector of the Southern Ocean during the last 100,000 years. Marine Geology 53, (1983). 291 312.Google Scholar
Stager, J.C, and Mayewski, P.A Abrupt early to mid-Holocene climatic transition registered at the equator and the poles. Science 276, (1997). 1834 1836.Google Scholar
Steig, E.J Mid-Holocene climate change. Science 286, (1999). 1485 1487.CrossRefGoogle Scholar
Steig, E.J, Hart, C.P, White, J.W.C, Cunningham, W.L, Davis, M.D, and Saltzman, E.S Changes in climate, ocean and ice sheet conditions in the Ross Embayment, Antarctica, at 6 ka. Annals of Glaciology. 27, (1998). 305 310.CrossRefGoogle Scholar
Steig, E.J, Fastook, J.L, Zweck, C, Goodwin, I.D, Licht, K.J, White, J.W.C, and Ackert, R.P West Antarctic ice sheet elevation changes. Antarctic Research Series 77, (2000). 75 90.Google Scholar
Stuiver, M, and Grootes, P.M GISP2 oxygen isotope ratios. Quaternary Research 53, (2000). 277 284.Google Scholar
Stuiver, M, and Polach, H.A Discussion: Reporting of 14C data. Radiocarbon 19, (1977). 355 363.Google Scholar
Stuiver, M, Burr, G.S, Hughen, K.A, Kromer, B, McCormac, G, Van Der Plicht, J, Spurk, M, Reimer, P.J, Bard, E, and Beck, J.W INTCAL98 radiocarbon age calibration, 24,000–0 cal BP. Radiocarbon 40, (1998). 1041 1084.Google Scholar
Stuiver, M, Reimer, P.J, and Braziunas, T.F High-precision radiocarbon age calibration for terrestrial and marine samples. Radiocarbon 40, (1998). 1127 1151.Google Scholar
Yuan, X, and Martinson, D.G Antarctic sea ice extent variability and its global connectivity. Journal of Climate 13, (2000). 1697 1717.2.0.CO;2>CrossRefGoogle Scholar