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Abbravation: Quaternary Research

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Cambridge University Press

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10.1007/bf02877232

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1096-0287

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Paleoclimatic Significance of the Stable Isotopic

Authors: Karin Holmgren Wibjörn Karlén Paul A Shaw
Publish Date: 1995/05
Volume: 43, Issue: 3, Pages: 320-328
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Abstract

Highresolution 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 51000 and 43000 yr BP was warm and humid and may have been associated with some C3 vegetation The second period between 27000 and 21000 yr BP had temperatures approximately 2°C lower and vegetation dominated by droughtadapted C4 plants The intervening period between 43000 and 27000 yr BP 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

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References

citation title=Environmental controls on the petrology of a late Holocene speleothem from Botswana with annual layers of aragonite and calcite citation author=Railsback L B citation author=Brook G A citation author=Chen J citation author=Kalin R citation author=Fleisher C J citation publication date=1994 citation journal title=Journal of Sedimentary Research A citation volume=64 citation firstpage=147 citation lastpage=155

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  1. Ice-Sheet Glaciation of the Puget Lowland, Washington, during the Vashon Stade (Late Pleistocene) 1
  2. The Timing of Late Pleistocene Mammalian Extinctions in North America
  3. An Altitudinal Cline in Tropical African Grass Floras and Its Paleoecological Significance
  4. Glaciations of the West Coast Range, Tasmania
  5. Tephrochronology of Late Wisconsin Deglaciation and Holocene Glacier Fluctuations Near Glacier Peak, North Cascade Range, Washington
  6. Determining the Exposure Age of a Karst Landscape
  7. Stable Isotope Stratigraphy of a Late Last Interglacial Speleothem from Rana, Northern Norway
  8. Holocene Paleoenvironmental Change in the Kenyan Central Rift as Indicated by Micromammals from Enkapune Ya Muto Rockshelter
  9. Paleoecological Studies at Lake Patzcuaro on the West-Central Mexican Plateau and at Chalco in the Basin of Mexico 1
  10. Some Effects of Partial Recrystallisation on 14 C dating Late Pleistocene Corals and Molluscs
  11. Some Effects of Partial Recrystallisation on 14 C dating Late Pleistocene Corals and Molluscs
  12. Climate Variation and the Rise and Fall of an Andean Civilization
  13. Saharan Dust Transport and High-Latitude Glacial Climatic Variability: The Alboran Sea Record
  14. Pedogenic Gradients for Iron and Aluminum Accumulation and Phosphorus Depletion in Arctic and Alpine Soils as a Function of Time and Climate
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  31. Mire Development and Environmental Change, Barrington Tops, New South Wales, Australia
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  36. Late Weichselian and Holocene Relative Sea-level History of Bröggerhalvöya, Spitsbergen
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