Sheri Fritz, George Holmes professor in the Department of Earth and Atmospheric Sciences and the School of Biological Sciences, is co-author of the paper "Holocene variations in Lake Titicaca water level and their implications for sociopolitical developments in the central Andes," which was published in the journal Proceedings of the National Academy of Sciences.
The international team of researchers reconstructed the lake-level history of Lake Titicaca in Bolivia/Peru over the last ~6000 years from the geochemistry of the lake sediments. This history was used to provide context for various socio-political changes in the basin as reported by archeologists.
