Changes in d18O values that do not parallel those in Sr/Ca, however, are best explained by changes in water temperature, or in the 18O/16O ratio of precipitation. Changes in the isotopic composition of precipitation may be brought about by shifts in water-vapour source, air temperature (Andrews 1993) or cloud height. Variations in the intensity of monsoon convection may be important, since highly 18O-depleted rainfall is produced by the strong uplift that occurs in monsoon clouds with cold tops (Fontes et al. 1993).

year (MAT5a83d3ba3b): The paleoData_values have changed

Column 'addR6J0fxJ9bc7lVUUEE', with variable name 'age.rangeLow', was added to the dataset
Column 'addR7rK0y1P7cKHSVMCg', with variable name 'age', was added to the dataset
Column 'addRIuP3A5lNZMLb46Ph', with variable name 'age.rangeHigh', was added to the dataset
Column 'addRS4nHufd3F1aVoEfA', with variable name 'depth', was added to the dataset
Column 'addRucJ4VvbpOHndKiKK', with variable name 'ageEnsemble', was added to the dataset
Column 'addRz9sACtvww0QWujtM', with variable name 'depth', was added to the dataset
Column 'LS97HOKA-chron-NA1', with variable name 'depth', was added to the dataset
Column 'LS97HOKA-chron-NA2', with variable name 'age.rangeLow', was added to the dataset
Column 'LS97HOKA-chron-NA3', with variable name 'age.rangeHigh', was added to the dataset
Column 'LS97HOKA-chron-NA4', with variable name 'age', was added to the dataset

Holmes, J. A. , Street-Perrott, F. A. , Allen, M. J. , Fothergill, P. A. , Harkness, D. D. , Kroon, D. , Perrott, R. A.

Holocene palaeolimnology of Kajemamm Oasis, Northern Nigeria: an isotopic study of ostracodes, bulk carbonate and organic carbon

HOLMES, J. A., STREET-PERROTT, F. A., ALLEN, M. J., FOTHERGILL, P. A., HARKNESS, D. D., KROON, D. and PERROTT, R. A.: Holocene palaeolimnology of Kajemamm Oasis, Northern Nigeria: an isotopic study of ostracodes, bulk carbonate and organic carbon, Journal of the Geological Society, 154(2), 311–319, doi:10.1144/gsjgs.154.2.0311, 1997.