Reconstruction of postglacial paleoproductivity in Long Lake, King George Island, West Antarctica

• Autorzy: Yoon H , Khim B. , Lee K. , Park Y. , Yoo K.
• Języki publikacji: EN

Abstrakty

EN

A sediment core (LS-1) collected from Long Lake in King George Island, South Shetland Islands (West Antarctica) was analyzed for a variety of textural, geochemical, iso- topic and paleontological properties together with 14C age dates. These data combined with published records of other studies provide a detailed history of local/regional postglacial paleoproductivity variation with respect to terrestrial paleoclimate change. The lithologic contrast of a lower diamicton and an upper fine-grained sediment demonstrates glacial recession and subsequent lake formation. The upper fine-grained deposit, intercalated by mid-Holocene tephra-fallout followed by a tephra gravity flow, was formed in a lacustrine environment. Low total organic carbon (TOC) and biogenic silica (Sibio) contents with high C/N ratios characterize the diamicton, whereas an increase of TOC and Sibio contents characterize the postglacial lacustrine fine-grained sediments, which are dated at c. 4000 yrBP. More notable are the distinct TOC maxima, which may imply enhanced primary productivity during warm periods. Changes in Sibio content and S13C values, which support the increasing paleoproductivity, are in sympathy with these organic matter variations. The uniform and low TOC contents that are decoupled by Sibio contents are attributed to the tephra gravity flows during the evolution of the lake rather than a reduced paleoproductivity. A very recent TOC maximum is also characterized by high Sibio content and S13C values, clearly indicating increased paleoproductivity consequent upon gradual warming across King George Island. Comparable with changes in sediment geochemistry, the occurrence and abundance of several diatom species corroborate the paleoproductivity variations together with the lithologic development. However, the paleoclimatic signature in local terrestrial lake environment during the postglacial period (for example the Long Lake) seems to be less distinct, as compared to the marine environment.

Słowa kluczowe

EN

reconstruction; postglacial paleoproductivity; paleontology; Lake Long; King George Island; West Antarctic; Antarctic; lake sediment; paleoclimate; diatom; organic carbon; carbon isotope

• Wydawca: -
• Czasopismo: Polish Polar Research
• Rocznik: 2006
• Tom: 27
• Numer: 3
• Opis fizyczny: p.189-206,fig.,ref.

Twórcy

autor

Yoon H

• Korea Polar Research Institute, Inchon 406-840, Korea

autor

Khim B.

autor

Lee K.

autor

Park Y.

autor

Yoo K.

Bibliografia

• APPLEBY P.G., JONES V.J. and Ellis-Evans J.C. 1995. Radiometic dating of recent lake sediments from Signy Island (maritime Antarctic): evidence of recent climatic change. Journal of Pale- olimnology 13: 179-191.
• BIRNIE J. 1990. Holocene environmental change in South Georgia: evidence from lake sediments. Journal of Quaternary Science 5: 171-187.
• BJÖRCK S., SANDGREN P. and ZALE R. 1991a. Late Holocene tephra chronology of the Northern Antarctic Peninsula. Quaternary Research 36: 322-328.
• BJÖRCK S., HJORT C., INGOLFSSON O. and SKOG G. 1991b. Radiocarbon dates from the Antarctic Peninsula - problems and potential. In: J.J. Lowe (ed.) Radiocarbon Dating: Recent Applications and Future Potential. Cambridge University Press, Cambridge: 55-65.
• BJÖRCK S., HAKANSSON H., OLSSON S., BARNEKOW L. and JANSSENS J. 1993. Paleoclimatic studies in South Shetland Islands, Antarctica, based on numerous stratigraphic variables in lake sediments. Journal of Paleolimnology 8: 233-272.
• BJÖRCK S., HAKANSSON H., ZALE R., KARLEN W. and JONSSON B. 1991c. A late Holocene lake sediment sequence from Livingston Island, South Shetland Islands, with palaeoclimatic implications. Antarctic Science 3: 61-72.
• Björck S., Olsson S., Ellis-Evans C., Håkansson H., Humlum O. and de Lirio J.M. 1996. Late Holocene palaeoclimatic records from lake sediments on James Ross Island, Antarctica. Palaeogeography, Palaeoclimatology, Palaeoecology 121: 195-220.
• CLAPPERTON C.M. and SUGDEN D.E. 1982. Late Quaternary glacial history of George VI Sound area, West Antarctica. Quaternary Research 18: 243-267.
• CLAPPERTON C.M., SUDGEN D.E., BIRNIE J. and WILSON M.J. 1989. Later-Glacial and Holocene glacier fluctuations and environmental change on South Georgia, Southern Ocean. Quaternary Research 31: 210-218.
• DOMACK E.W., ISHMAN S.E., stein A.B., McCLENNEN C.E. and JULL A.S.T. 1995. Late Holocene advance of the Muller Ice Shelf, Antarctic Peninsula: sedimentologic, geochemical, and pale- ontological evidence. Antarctic Science 7: 159-170.
• DOMACK E.W., LEVENTER A., DUNBAR R., TAYLOR F., BRACHFELD S., SJUNNESKOG C. and ODP leg 178 SCIENTIFIC Party. 2000. Chronology of the Palmer Deep site, Antarctic Peninsula: a Holocene palaeoenvironmental reference for the circum-Antarctic. The Holocene 11: 1-9.
• FULFORD-SMITH S. and SIKES E.L. 1996. The evolution of Ace Lake, Antarctica, determined from sedimentary diatom assemblages. Palaeogeography, Palaeoclimatology, Palaeoecology 124: 73-86.
• GIBSON J.A.E., TRULL T., NICHOLS P.D., SUMMONS R.W. and MCMINN A. 1999. Sedimentation of 13C-rich organic matter from Antarctic sea-ice algae: A potential indicator of past sea ice extent. Geology 27: 331-334.
• HJORT C., INGOLFFON O., MOLLER P. and LIRIO J.M. 1997. Holocene glacial history and sea-level changes on James Ross Island, Antarctic Peninsula. Journal of Quaternary Scicence 12: 259-273.
• HOLDGATE M.W. 1977. The terrestrial ecosystem in the Antarctic in Scientific Research in Antarctica. Philosophical Transactions of Royal Society of London B 279: 5-25.
• INGOLFOSSON O., HJÖRT C., BJÖRCK S. and SMITH R.I.L. 1992. Late Pleistocene and Holocene glacial history of James Ross Island, Antarctic Peninsula. Boreas 21: 209-222.
• INGOLFSSON O., HJÖRT C., BERKMAN P., BJÖRCK S., COLHOUN E.A., GOODWIN I.D., HALL B.L., HIRAKAWA K., Melles M., MÖLLER P. and PRENTICE M.L. 1998. Antarctic glacial history since the last glacial maximum: An overview of the record on land. Antarctic Science 10: 326-344.
• JOHN B.S., 1972. Evidence from the South Shetland Islands towards a glacial history of West Antarctica. In: D.E. Sugden and R.J. Price (eds) Polar Geomorphology. Institute of British Geographers, London: 75-92.
• JONES V.J., HODGSON D.A. and CHEPSTWO-LUSTY A. 2000. Palaeolimnological evidence for marked Holocene environmental changes on Signy Island, Antarctica. The Holocene 10: 43-60.
• JONES V.J., JUGGINS S. and ELLIS-EVANS J.C. 1993. The relationship between water chemistry and surface sediment diatom assemblages in martime Antarctic lakes. Antarctic Science 5: 339-348.
• KARLIN R. 1990. Magnetite diagenesis in marine sediments from the Oregon continental margin. Journal of Geophysical Research 95: 4405-4419.
• KEMP A.L., THOMAS H. and JOHNSTON M.L. 1977. Nitrogen and C/N ratios in the sediments of Lakes Superior, Huron, St. Clair, Erie, and Ontario. Canadian Journal of Earth Sciences 14: 2402-2413.
• KHIM B.K., YOON H.I., KANG C.Y. and BAHK J.J. 2002. Unstable climate oscillations during the Late Holocene in the eastern Bransfield Basin, Antarctic Peninsula. Quaternary Research 58: 234-245.
• KHIM B.K., YOON H.I., KIM Y. and SHIN I.C. 2001. Late Holocene stable isotope chronology and meltwater discharge event in Maxwell and Admiralty bays, King George Island, Antarctica. Antarctic Science 13: 167-173.
• KIRBY M.E., DOMACKE.W. And MCCLENNEN C.E. 1998. Magnetic stratigraphy and sedimentology of Holocene glacial marine deposits in the Palmer Deep, Bellingshausen Sea, Antarctica: implications for climate change? Marine Geology 152: 247-259.
• LEVENTER A., Dunbar R.B. And DEMASTER D.J. 1993. Diatom evidence for late Holocene climatic events in Granite Harbor, Antarctica. Paleoceanography 8: 373-386.
• MARTINEZ-MACCHIAVELLO J.C., TATUR A., SERVANT-VILDARY S. and DEL VALLE R. 1996. Holocene environmental change in a marine-estuarine sediment sequence, King George Island, South Shetland Islands. Antarctic Science 8: 313-322.
• MÄUSBACHER R., MULLER J., MUNNICH M. and SCHMIDT R. 1989. Evolution of postglacial sedimentation in Antarctic lakes (King George Island). Zeitschrift für Geomorphologie 33: 219-234.
• MORTLOCK R.A. and FROELICH P.N. 1989. A simple method for the rapid determination of biogenic opal in marine sediments. Deep-Sea Research 36: 1415-1426.
• MÜLLER P.J. and SCHNEIDER R. 1993. An automated leaching method for the determination of opal in sediments and particulate matter. Deep-Sea Research 40: 425-444.
• O'LEARY M.H. 1981. Carbon isotope fractionation in plants. Phytochemistry 20: 553-567.
• PUDSEY C.J. and CAMERLENGHI A. 1998. Glacial-interglacial deposition on a sediment drift on the Pacific margin of the Antarctic Peninsula. Antarctic Science 10: 286-308.
• RATHBURN A.E., PICHON J.J., AYRESS M.A. and DE DECKKER P. 1997. Microfossil and stable-isotope evidence for changes in Late Holocene palaeoproductivity and palaeoceanographic conditions in the Prydz Bay region of Antarctica. Palaeogeography, Palaeoclimatology, Palaeoecology 131: 485-510.
• RAU G.H., RIESEBELL U. and WOLF-GLADROW D. 1997. CO2aq-dependent photosynthetic 13C fractionation in the ocean: a model versus measurements. Global Biogeochemical Cycles 11: 267-278.
• Roberts D., van Ommen T.D., McMinn A., Morgan V. and Roberts J.L. 2001. Late-Holocene East Antarctic climate trends from ice-core and lake-sediment proxies. The Holocene 11:117-120.
• SCHMIDT R., MÄUSBACHER R. and MÜLLER J. 1990. Holocene diatom flora and stratigraphy from sediment cores of two Antarctic lakes (King George Island). Journal of Paleolimnology 3: 55-74.
• SCHRADER H.J. 1974. Proposal for a standardized method of cleaning diatom-bearing deep sea and land-exposed marine sediments. Nova Hedwigia, Beihefte 45: 403-409.
• STEVENSON F.J. and CHENG C.M. 1972. Organic geochemistry of the Argentine Basin sediments: Carbon-nitrogen relationships and Quaternary correlations. Geochimica et Comoschimica Acta 36: 653-671.
• SUDGEN D.E. and CLAPPERTON C.M. 1986. Glacial history of the Antarctic Peninsula and South Georgia. South African Journal of Science 82: 508-509.
• TATUR A., MARTINEZ-MACCHIAVELLO J.C., NIGODZISZ J. and DEL VALLE R. 1999. A record of Holocene environmental changes in sediment core of Hotel Lake, King George Island, Antarctica. Polish Polar Studies, 26th International Polar Symposium, Lublin: 379-389.
• TATUR A., DEL VALLE R., BARCZUK A. and MARTINEZ-MACCHIAVELLO J.C. 2004. Records of Ho- locene environmental changes in terrestrial sedimentary deposits on King George Island, Antarctica: a critical review. Ocean and Polar Research, 26: 531-537.
• TAYLOR F., WHITEHEAD J. and DOMACK E. 2001. Holocene paleoclimate change in the Antarctic Peninsula: evidence from the diatom, sedimentary and geochemical record. Marine Micro- paleontology 41: 25-43.
• THOMPSON R. and OLDFIELD F. 1986. Environmental Magnetism. Allen and Unwin, London: 227 pp.
• WADA E., TERAZAKIM., Kabaya Y. and NEMOTO T. 1987.15N and 13C abundances in the Antarctic Ocean with emphasis on the biogeochemical structure of the food web. Deep-Sea Research 34: 829-841.
• YANG S. and HARWOOD D.M. 1997. Late Quaternary environmental fluctuations based on diatoms from Yanou Lake, King George Island, Fildes Peninsula, Antarctica. In: C.A. Ricci (ed.) The Antarctic region: geological evolution and processes. Siena: 853-859.
• YOON H.I., Park B.K., KIM Y. and KIM D. 2000. Glaciomarine sedimentation and its paleoceanographic implications along the fjord margins in the South Shetland Islands, Antarctica during the last 6000 years. Palaeogeography, Palaeoclimatology, Palaeoecology 157: 189-211.