The oxygen isotope composition of ostracod carapaces depends primarily on the d18O composition of the water and the tempera- ture at which carbonates precipitate (Craig, 1965; Stuiver, 1970). In tropical, closed-basin lakes within seasonally dry climates, the d18O value of lake water is controlled primarily by the evaporation to precipitation ratio (E/P) of the lake (Fontes and Gonfiantini, 1967; Gasse et al., 1990). During periods of increased (decreased) E/P ratios, the d18O value of lake water will go up (down) as kinetic fractionation processes lead to an increase (decrease) in concen- trations of 18O relative to 16O. Assuming that long-term tempera- ture changes in the tropics are less likely to affect d18O values in the lake than are changes in the E/P ratio (Covich and Stuiver, 1974; Curtis and Hodell, 1993), the d18O value of ostracod carapaces should indicate variations in the E/P ratio of the lake.

LS09LACA: added core top age, updated 'useInAgeModel' values to match publication

d18O (LS09LACA): interpretation3_scope: '' has been replaced by 'isotope'
d18O (LS09LACA): interpretation4_scope: '' has been replaced by 'isotope'

year (MATc70ccaf62a): The paleoData_values have changed

Column 'addR5XOmbriFFZxsdyAM', with variable name 'depth', was added to the dataset
Column 'addRf9a8ExeJBguYIjGR', with variable name 'age.rangeHigh', was added to the dataset
Column 'addRLQEpJtVz5a6abuZS', with variable name 'depth', was added to the dataset
Column 'addRMjrPcoa7B7SAPkwx', with variable name 'age.rangeLow', was added to the dataset
Column 'addRVNsJCtUJnGivYVZm', with variable name 'ageEnsemble', was added to the dataset
Column 'addRXU3EY8ulCMFQ7ibu', with variable name 'reject', was added to the dataset
Column 'addRZVRsjBnRRyZzflvX', with variable name 'age', was added to the dataset
Column 'LS09LACA-chron-NA1', with variable name 'depth', was added to the dataset
Column 'LS09LACA-chron-NA2', with variable name 'age.rangeLow', was added to the dataset
Column 'LS09LACA-chron-NA3', with variable name 'age.rangeHigh', was added to the dataset
Column 'LS09LACA-chron-NA4', with variable name 'age', was added to the dataset