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Millennial-scale climate changes on South Georgia, Southern Ocean

Published online by Cambridge University Press:  20 January 2017

Gunhild C. Rosqvist  and
Pernilla Schuber
Gunhild C. Rosqvist*
Affiliation:
Department of Physical Geography and Quaternary Geology, Stockholm University, 106 91 Stockholm, Sweden
Pernilla Schuber
Affiliation:
Department of Physical Geography and Quaternary Geology, Stockholm University, 106 91 Stockholm, Sweden
*
*Corresponding author. Fax: +46-08-164818. Email Address:[email protected]
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Abstract

The location of South Georgia (54°S, 36°W) makes it a suitable site for the study of the climatic connections between temperate and polar environments in the Southern Hemisphere. Because the mass balance of the small cirque glaciers on South Georgia primarily responds to changes in summer temperature they can provide records of changes in the South Atlantic Ocean and atmospheric circulation. We use grey scale density, weight-loss-on-ignition, and grain size analyses to show that the proportion of glacially eroded sediments to organic sediments in Block Lake was highly variable during the last 7400 cal yr B.P. We expect that the glacial signal is clearly detectable above noise originating from nonglacial processes and assume that an increase in glacigenic sediment deposition in Block Lake has followed Holocene glacier advances. We interpret proglacial lake sediment sequences in terms of summer climate warming and cooling events. Prominent millennial-scale features include cooling events between 7200 and 7000, 5200 and 4400, and 2400 and 1600 cal yr B.P. and after 1000 cal yr B.P. Comparison with other terrestrial and marine records reveals that the South Georgian record captures all the important changes in Southern Hemisphere Holocene climate. Our results reveal a tentative coupling between climate changes in the South Atlantic and North Atlantic because the documented temperature changes on South Georgia are anti-phased to those in the North Atlantic.

Keywords

Glacier fluctuationsMillennial-scale climate changeProglacial lake sedimentsSouth Georgia, Southern Ocean, Holocene
Type
Short Paper
Information
Quaternary Research , Volume 59 , Issue 3 , May 2003 , pp. 470 - 475
Copyright
Elsevier Science (USA)

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References

Bahr, D.B, Pfeffer, W.T, Sassolas, C, and Meier, M.F Response time of glaciers as a function of size and mass balance. 1. Theory. Journal of Geophysical Research 103, (1998). 9777 9782.CrossRefGoogle Scholar
Battarbee, R.W, Cameron, N.G, Golding, P, Brooks, S.J, Switsur, R, Harkness, D, Appelby, P, Oldfield, F, Thompson, R, Monteith, D.T, and McGovern, A Evidence for Holocene climate variability from the sediments of a Scottish remote mountain lake. Journal of Quaternary Science 16, 4 (2001). 339 346.CrossRefGoogle Scholar
Birnie, J Holocene environmental change in South Georgia. evidence from lake sediments. Journal of Quaternary Science 5, (1990). 171 187.CrossRefGoogle Scholar
Björck, S, Håkansson, H, Olsson, S, Barnekow, L, and Janssens, J Palaoeclimatic studies in South Shetland Islands, Antarctica, based on numerous stratigraphic variables in lake sediments. Journal of Paleolimnology 8, (1993). 233 272.CrossRefGoogle Scholar
Björck, S, Håkansson, H, Sale, R, Karlén, W, and Jönsson, B A late Holocene lake sediment sequence from Livingstone Island, South Shetland Islands, with paleoclimatic implications. Antarctic Science 3, (1991). 61 72.CrossRefGoogle Scholar
Björck, S, Olsson, S, Ellis-Evans, C, Håkansson, H, Humlum, O, and de Lirio, J Late Holocene palaeoclimatic records from lake sediments on James Ross Island, Antarctica. Palaeogeography, Palaeoclimatology, Palaeoecology 121, (1996). 195 220.CrossRefGoogle Scholar
Blunier, T, and Brook, E.J Timing of millennial-scale climate change in Antarctica and Greenland during the last glacial period. Science 291, (2001). 109 112.CrossRefGoogle ScholarPubMed
Bond, G, Showers, W, Chesby, M, Lotti, R, Almasi, P, De Menocal, P, Priore, P, Cullen, H, Hajdas, I, and Bonani, G A pervasive millennial-scale cycle in North Atlantic sediments and Greenland ice. Science 278, (1997). 1257 1266.CrossRefGoogle Scholar
Bond, G, Kromer, B, Beer, J, Muscheler, R, Evans, M.N, Showers, W, Hoffmann, S, Lotti-Bond, R, Hajdas, I, and Bonani, G Persistent solar influence on North Atlantic climate during the Holocene. Science 294, (2001). 2130 2136.CrossRefGoogle ScholarPubMed
Ciais, P, Jouzel, J, Petit, J.R, Lipenkov, V, and White, J.W.C Holocene temperature variations inferred from six Antarctic ice cores. Annals Glaciology 20, (1994). 427 436.CrossRefGoogle Scholar
Clapperton, C.M Quaternary Geology and Geomorphology of South America. (1993). Elsevier, Amsterdam.Google Scholar
Clapperton, C.M Quaternary glaciations in the Southern Ocean and Antarctic peninsula area. Quaternary Science Reviews 9, (1988). 229 252.CrossRefGoogle Scholar
Clapperton, C.M, Sugden, D.E, Birnie, R.V, Hansom, J.D, and Thom, G Glacier fluctuations in South Georgia and comparison with other island groups in the Scotia Sea. van Zinderen Bakker, E.M, and Bakker, E.M Antarctic Glacial History and World Palaeoenvironments. (1978). Balkema, Rotterdam. 95 104.Google Scholar
Clapperton, C.M, Sugden, D.E, Birnie, J, and Wilson, M.J Late-Glacial and Holocene glacier fluctuations and environmental change on South Georgia, Southern Ocean. Quaternary Research 31, (1989). 210 228.CrossRefGoogle Scholar
Clapperton, C.M, Sugden, D.E, and Pelto, M Relationship of land terminating and fjord glaciers to Holocene climate change, South Georgia, Antarctica. Oerlemans, J Glacier Fluctuations and Climate Change. (1989). Kluwer Academic, Dordrecht. 57 75.Google Scholar
Crowley, T.J North Atlantic Deep water cools the southern hemisphere. Paleooceanography 7, (1992). 489 498.CrossRefGoogle Scholar
Desloges, J.R Geomorphic and climatic interpretations of abrupt changes in glaciolacustrine deposition at Moose Lake, British Columbia, Canada. GFF 121, (1999). 202 207.CrossRefGoogle Scholar
Domack, E.W, and Mayewski, P.A Bi-polar ocean linkages. evidence from late-Holocene Antarctic marine and Greenland ice-core records. The Holocene 9, (1999). 247 251.CrossRefGoogle Scholar
Gordon, J.E, and Timmis, R.J Glacier fluctuations on South Georgia during the 1970s and early 1980s. Antarctic Science 4, 2 (1992). 215 226.CrossRefGoogle Scholar
Hodell, D.A, Kanfoush, S.L, Shemesh, A, Crosta, X, Charles, C.D, and Guilderson, T.P 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. Quaternary Research 56, (2001). 191 198.CrossRefGoogle Scholar
Ikehara, M, Kawamurna, K, Ohkouchi, N, Kimoto, K, Murayama, M, Nakamura, T, Oba, T, and Taira, A Alkenone sea surface temperature in the Southern Ocean for the last two deglaciations. Geophysical Research Letters 24, (1997). 679 682.CrossRefGoogle Scholar
Ingolfsson, O, Hjort, C, Berkman, P, Björck, S, Colhoun, E, Goodwin, I.D, Hall, B, Hirakawa, K, Melles, M, Möller, P, and Prentice, M.L Antarctic glacial history since the Last Glacial Maximum. an overview of the record on land. Antarctic Science 10, (1998). 326 344.CrossRefGoogle Scholar
Iverson, N Processes of erosion. Menzies, J Modern Glacial Environments. Processes, Dynamics and Sediments. (1995). Butterworth–Heinemann, Oxford. 241 259.Google Scholar
Jones, V.J, Hodgson, D.A, and Chepstow-Lusty, A Palaeolimnological evidence for marked Holocene environmental changes on Signy Island, Antarctica. The Holocene 10, (2000). 43 60.CrossRefGoogle Scholar
Karlén, W Lacustrine sediment studies. a technique to obtain a continuous record of Holocene glacier variations. Geografiska Annaler 63, (1981). 273 281.Google Scholar
Kuylenstierna, J, Rosqvist, G, and Holmlund, P Late-Holocene glacier variations in the Cordillera Darwin, Tierra del Fuego, Chile. The Holocene 6, 3 (1996). 353 358.CrossRefGoogle Scholar
Leine, M., (1998). CORPS 1.2 Core Profiling Systems. Swedish Geo Coding, Google Scholar
Leonard, E.M A continuous Holocene glacial record inferred from proglacial lake sediments in Banff National Park, Alberta, Canada. Quaternay Research 51, (1999). 1 13.CrossRefGoogle Scholar
Matthews, J.A, Dahl, S.O, Nesje, A, Berrisford, M.S, and Andersson, C Holocene glacier variations in central Jotunheimen, Southern Norway based on distal glaciolacustrine sediment cores. Quaternary Science Reviews 19, (2000). 1625 1647.CrossRefGoogle Scholar
Masson, V, Vimeux, F, Jouzel, J, Morgan, V, Delmotte, M, Ciais, P, Hammer, C, Johnsen, S, Lipenkow, V.Y, Mosely-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.CrossRefGoogle Scholar
McMinn, A, Heijnis, H, Harle, K, and McOrist, G Late-Holocene climate change recorded in sediment cores from Ellis Fjord, eastern Antarctica. The Holocene 11, (2001). 291 300.CrossRefGoogle Scholar
Menzies, J Glaciers and ice sheets. Menzies, J Modern Glacial Environments. Processes, Dynamics and Sediments. (1995). Butterworth–Heinemann, Oxford. 101 138.Google Scholar
Mercer, J.H Holocene glacier variations in southern South America. Striae 18, (1982). 35 40.Google Scholar
Ninnemann, U.S, Charles, C.D, and Hodell, D.A Origin of global millennial scale climate events. constraints from the Southern Ocean deep-sea sedimentary record. Clark, P.U, Webb, R.S, and Keigwin, L.D Mechanisms of Global Climate Change. (1999). Geophysical Monograph, American Geophysical Union, Washington, DC.Google Scholar
Pfeffer, W.T, Sassolas, C, Bahr, D.B, and Meier, M.F Response time of glaciers as a function of size and mass balance. 2. Numerical experiments. Journal of Geophysical Research 103, (1998). 9783 9789.CrossRefGoogle Scholar
Porter, S.C Onset of Neoglaciation in the Southern Hemisphere. Journal of Quaternary Science 15, (2000). 395 408.3.0.CO;2-H>CrossRefGoogle Scholar
Rosqvist, G.C, Rietti-Shati, M, and Shemesh, A Late glacial to middle Holocene climatic record of lacustrine biogenic silica oxygen isotopes from a Southern Ocean Island. Geology 27, (1999). 967 970.2.3.CO;2>CrossRefGoogle Scholar
Schiller, A, Mikolajewicz, U, and Voss, R The stability of the North Atlantic thermohaline circulation in a coupled ocean-atmosphere general circulation model. Climate Dynamics 13, (1997). 325 347.CrossRefGoogle Scholar
Skidmore, M.J The geology of South Georgia. III. Prince Olav Harbour and Stromness Bay areas. British Antarctic Survey Scientific Reports 73, (1972). 50 pp Google Scholar
Smith, J Glacier problems in South Georgia. J. Glaciol. 3, (1960). 705 714.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
Stuiver, M, Burr, G.S, Hughen, K.A, Kromer, B, McCormac, G, Van Der Plicht, J, Spruk, M, Reimer, P.J, Bard, E, and Beck, J.W INTCAL98 radiocarbon age calibration, 24,000-0 cal BP. Radiocarbon 40, (1998). 1041 1084.CrossRefGoogle Scholar
Timmis, R.J., (1986). Glacier changes in South Georgia and their relationship to climatic trends. Unpublished Ph.D. dissertation, University of East Anglia, 390 ppGoogle Scholar
White, W.B, and Peterson, R.G An Antarctic circumpolar wave in surface pressure, wind, temperature and se-ice extent. Nature 380, (1996). 699 702.CrossRefGoogle Scholar