Lamb, H. F. , Leng, M. J. , Telford, R. J. , Ayenew, T. , Umer, M.

Oxygen and carbon isotope composition of authigenic carbonate from an Ethiopian lake: a climate record of the last 2000 years

Lamb, H. F., Leng, M. J., Telford, R. J., Ayenew, T. and Umer, M.: Oxygen and carbon isotope composition of authigenic carbonate from an Ethiopian lake: a climate record of the last 2000 years, The Holocene, 17(4), 517–526, doi:10.1177/0959683607076452, 2007.

our calculated [equilibium] d18OC values of ?12.7? are similar to core values from the last few hundred years, which lends support to the idea that the modern carbonates are precipitating in equilibrium.

We argue that a substantial and persistent change in !p is required to change the annual mean values of d18Ow in northern Scandinavia.

All the modern lake and groundwater isotope data lie on the Local Meteoric Water Line (LMWL) (IAEA/WMO, 2006) indicating that evaporation is not important. The similarity of the isotope composition of the lake and its different groundwater reservoirs indicate that the lake is likely to be constantly replenished by groundwater input and subterraneous outflow resulting in a short water residence time.

no radiometric ages for surface sediments prior to 1440 AD

year (MAT6d84c70678): The paleoData_values have changed

Column 'addRlbtuTrq8aF1RknlW', with variable name 'age.rangeLow', was added to the dataset
Column 'addRnXSw8cV8Ijuc7H0p', with variable name 'depth', was added to the dataset
Column 'addRSo2xKy60hT8KuoZQ', with variable name 'age.rangeHigh', was added to the dataset
Column 'addRwn0TULBimM4QHLOw', with variable name 'ageEnsemble', was added to the dataset
Column 'addRyIE6wmoXo0w5Xzhe', with variable name 'age', was added to the dataset
Column 'addRYJ3mQJUmEnPq2gGD', with variable name 'depth', was added to the dataset
Column 'LS07ROTI-chron-NA1', with variable name 'depth', was added to the dataset
Column 'LS07ROTI-chron-NA2', with variable name 'age.rangeLow', was added to the dataset
Column 'LS07ROTI-chron-NA3', with variable name 'age.rangeHigh', was added to the dataset
Column 'LS07ROTI-chron-NA4', with variable name 'age', was added to the dataset