Impact of Bolivian paleolake evaporation on the ?18O of the Andean glaciers during the last deglaciation (18.5-11.7 ka): Diatom-inferred ?18O values and hydro-isotopic modeling

During the last deglaciation, the Bolivian Altiplano (15–23°S, 66–70°W) was occupied by paleolake Tauca covering, at least, ?51,000 km2 at its maximum highstand between 16.5 and 15 ka. Twenty-five hundred years later, after a massive regression, a new transgressive phase, produced paleolake Coipasa,...