under a Creative Commons License. Climate of the Past Exposure dating of Late Glacial and pre-LGM moraines in the

Abstract. Despite the important role of the Central Andes (15–30 ◦ S) for climate reconstruction, knowledge about the Quaternary glaciation is very limited due to the scarcity of or-ganic material for radiocarbon dating. We applied 10Be sur-face exposure dating (SED) on 22 boulders from moraines in the Cordon de Doña Rosa, Northern/Central Chile (∼31 ◦ S). The results show that several glacial advances in the south-ern Central Andes occurred during the Late Glacial between ∼14.7±1.5 and 11.6±1.2 ka. A much more extensive glacia-tion is dated to ∼32±3 ka, predating the temperature mini-mum of the global LGM (Last Glacial Maximum: ∼20 ka). Reviewing these results in the paleoclimatic context, we con-clude that the Late Glacial advances were most likely caused by an intensification of the tropical circulation and a cor-responding increase in summer precipitation. High-latitud