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Paleoclimatic Significance of the Stable Isotopic Composition and Petrology of a Late Pleistocene Stalagmite from Botswana

Published online by Cambridge University Press:  20 January 2017

Karin Holmgren
Affiliation:
Department of Physical Geography, Stockholm University, 106 91 Stockholm, Sweden
Wibjörn Karlén
Affiliation:
Department of Physical Geography, Stockholm University, 106 91 Stockholm, Sweden
Paul A. Shaw
Affiliation:
Department of Geology, University of Luton, Park Square, Luton Bedfordshire, LU1 3JU, United Kingdom

Abstract

High-resolution δ18O and δ13C analyses of a stalagmite from Lobatse II Cave reveal late Pleistocene environmental changes in Botswana. Large shifts in δ18O and δ13C are observed between two main periods of deposition. The first period, between 51,000 and 43,000 yr B.P., was warm and humid and may have been associated with some C3 vegetation. The second period, between 27,000 and 21,000 yr B.P., had temperatures approximately 2°C lower, and vegetation dominated by drought-adapted C4 plants. The intervening period, between 43,000 and 27,000 yr B.P., bounded by two major hiatuses in stalagmite growth, produced discontinuous speleothem formation, probably under dry conditions. New 230 Th/234U mass spectrometry age determinations for the stalagmite generally agree with previously measured 230 Th/234U ages.

Type
Research Article
Copyright
University of Washington

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References

Bond, G. Heinrich, H. Broecker, W. Labeyrie, L. McManus, J. Andrews, J. Huon, S. Jantschik, B. Clasen, S. Simet, C. Tedesco, K. Klas, M. Bonani, G., and Ivy, S. (1992). Evidence for massive discharges of icebergs into the North Atlantic ocean during the last glacial period. Nature 360, 245249.CrossRefGoogle Scholar
Bowen, R. (1988). “Isotopes in the Earth Sciences,” p. 380. Elsevier, London/New York.Google Scholar
Brook, G. A. Burney, D. A., and Cowart, J. B. (1990). Paleoenvironmental data for Ituri, Zaire, from sediments in Matupi Cave, Mt. Hoyo. In “Evolution of environments and hominidae in the African Western Rift Valley.” (Boaz, N. T., Ed.), Virginia Museum National History Memoir 1. pp. 4970.Google Scholar
Cerling, T. E. (1984). The stable isotopic composition of modem soil carbonate and its relationship to climate. Earth and Planetary Science Letters 71, 229240.CrossRefGoogle Scholar
Cerling, T. E. Quade, J. Ambrose, S. H., and Sikes, N. E. (1991). Fossil soils, grasses and carbon isotopes from Fort Teman, Kenya: grassland or woodland? Journal of Human Evolution 21, 295306.CrossRefGoogle Scholar
Cooke, H. J. (1975). The Lobatse Caves. Botswana Notes and Records 7, 2934.Google Scholar
Craig, H. (1957). Isotopic standards for carbon and oxygen and correction factors for mass spectrometric analysis of carbon dioxide. Geochimica et Cosmochimica Acta 12, 133149.CrossRefGoogle Scholar
Dansgaard, W. (1964). Stable isotopes in precipitation. Tellus 16, 436468.CrossRefGoogle Scholar
Deacon, J., and Lancaster, N, (1988). “Late Quaternary Palaeoenvironments of Southern Africa.” Clarendon Press, Oxford, 225 pp.Google Scholar
Dórale, J. A. González, L. A. Reagan, M. K. Pickett, D. A. Murrell, M. T., and Baker, R. G. (1992). A High-Resolution Record of Holocene Climate Change in Speleothem Calref from Cold Water Cave, Northeast Iowa. Science 258, 16261630.CrossRefGoogle ScholarPubMed
Ford, D. C., and Williams, P. (1989). “Karst Geomorphology and Hydrology.” Unwin Hyman, London, p. 370.Google Scholar
Gascoyne, M. (1979). “Pleistocene climates determined from stable isotope and geochronologic studies of speleothem.” Unpublished Ph.D. Dissertation, McM aster University, 433 pp.Google Scholar
Gascoyne, M. (1992). Palaeoclimate determination from cave calref deposits. Quaternary Science Reviews 11, 60932.CrossRefGoogle Scholar
Goede, A., and Hitchman, M. A. (1984). Late Quaternary climatic change-evidence from a Tasmanian speleothem, In “Late Cainozoic Palaeoclimates of the Southern Hemisphere” (Vogel, J. C., Ed.), pp. 221232. Balkema, Rotterdam.Google Scholar
Goede, A., and Vogel, J. C. (1991). Trace element variations and dating of a Late Pleistocene Tasmanian speleothem. Palaeogeography, Palaeoclimatology, Palaeoecology 88, 121131.CrossRefGoogle Scholar
Hattersley, P. W. (1983). The distribution of C3 and C4 grasses in Australia in relation to climate. Oecologia 57, 113128.CrossRefGoogle Scholar
Hendy, C. H. (1971). The isotopic geochemistry of speleothems-I. The calculation of the effects of different modes of formation on the isotopic composition of speleothems and their applicability as palaeoclimatic indicators. Geochimica et Cosmochimica 35, 801824.CrossRefGoogle Scholar
Hill, C. A., and Forti, P. (1986). “Cave minerals of the world.” Huntsville, National Speleological Society, p. 238.Google Scholar
Holmgren, K. Lauritzen, S.-E., and Possnert, G. (1994). Th/234!] and 14C dating of a late Pleistocene stalagmite in Lobatse II cave, Botswana. Quaternary Geochronology (Quaternary Science Reviews) 13, 111119.CrossRefGoogle Scholar
King, L. C. (1951). The geology of Makapan and other caves. Transactions of the Royal Society of South Africa 33, 121150.CrossRefGoogle Scholar
Kingston, J. D. Marino, B. D., and Hill, A. (1994). Isotopic evidence for Neogene hominid paleoenvironments in the Kenya Rift Valley. Science 264, 955959.CrossRefGoogle ScholarPubMed
Kronfeld, J. Vogel, J. C., and Talma, A. S. (1994). A new explanation for extreme 234U/238U disequilibria in a dolomitic aquifer. Earth and Planetary Science Letters 123, 8193.CrossRefGoogle Scholar
Li, W.-X. Lundberg, J. Dickin, A. P. Ford, D. C. Schwarcz, H. P. McNutt, R., and Williams, D. (1989). High-precision massspectrometric uranium-series dating of cave deposits and implications for palaeoclimate studies. Nature 339, 534536.CrossRefGoogle Scholar
Mayewski, P. A. Meeker, L. D. Whitlow, S. Twickler, M. S. Morrison, M. C. Bloomfield, P. Bond, G. C. Alley, R. B. Gow, A. J. Grootes, P. M. Meese, D. A. Ram, M. Taylor, K. C., and Wumkes, W. (1994). Changes in atmospheric circulation and ocean ice cover over the North Atlantic during the last 41,000 years. Science 263, 17471751.CrossRefGoogle ScholarPubMed
Railsback, L. B. Brook, G. A. Chen, J. Kalin, R., and Fleisher, C. J. (1994). Environmental controls on the petrology of a late Holocene speleothem from Botswana with annual layers of aragonite and calref. Journal of Sedimentary Research A 64, 147155.Google Scholar
Salomons, W., and Mook, W. G. (1986). Isotope geochemistry of carbonates in the weathering zone. In “Handbook of Environmental Isotope Geochemistry 2” (Fritz, P. and Fontes, J. Ch., Eds.), pp. 239269. Elsevier, Amsterdam/Oxford/New York/Tokyo.Google Scholar
Schwarcz, H. P. Harmon, R. H. Thompson, P., and Ford, D. C. (1976). Stable isotope studies of fluid inclusions in speleothems and their paleoclimatic significance. Geochimica et Cosmochimica Acta 40, 657665.CrossRefGoogle Scholar
Schwarcz, H. P. (1986). Geochronology and isotopic geochemistry of speleothems. In “Handbook of Environmental Isotope Geochemistry 2” (Fritz, P. and Fontes, J. Ch., Eds.), pp. 271303. Elsevier, Amsterdam/Oxford/New York/Tokyo.Google Scholar
Sukumar, R. Ramesh, R. Pant, R. K., and Rajagopalan, G. (1993). A S13C record of late Quaternary climate change from tropical peats in southern India. Nature 364, 703705.CrossRefGoogle Scholar
Talma, A. S., and Vogel, J. C. (1992). Late Quaternary paleotemperatures derived from a speleothem from Cango Caves, Cape Province, South Africa. Quaternary Research 37, 203213.CrossRefGoogle Scholar
Talma, A. S. Vogel, J. C., and Partridge, T. C. (1974). Isotopic Contents of Some Transvaal Speleothems and their Palaeoclimatic Significance. South African Journal of Science 70, 135140,Google Scholar
Tarutani, T. Clayton, R. N., and Mayeda, T. K. (1969). The effect of polymorphism and magnesium substitution on oxygen isotope frac-tionation between calcium carbonate and water. Geochimica et Cosmochimica Acta 33, 987996.CrossRefGoogle Scholar
Thomas, D. S. G., and Shaw, P. A. (1991). “The Kalahari Environment.” Cambridge Univ. Press, Cambridge, UK.Google Scholar
Vogel, J. C. (1978). Isotopic assessment of the dietary habits of ungulates. South African Journal of Science 74, 298301.Google Scholar
Vogel, J. C. (1983). 14C variations during the upper Pleistocene. Radiocarbon 25, 213218.CrossRefGoogle Scholar

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Paleoclimatic Significance of the Stable Isotopic Composition and Petrology of a Late Pleistocene Stalagmite from Botswana
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