Articles | Volume 70, issue 1
https://doi.org/10.5194/egqsj-70-105-2021
https://doi.org/10.5194/egqsj-70-105-2021
Research article
 | 
20 May 2021
Research article |  | 20 May 2021

A composite 10Be, IR-50 and 14C chronology of the pre-Last Glacial Maximum (LGM) full ice extent of the western Patagonian Ice Sheet on the Isla de Chiloé, south Chile (42° S)

Juan-Luis García, Christopher Lüthgens, Rodrigo M. Vega, Ángel Rodés, Andrew S. Hein, and Steven A. Binnie

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Short summary
The Last Glacial Maximum (LGM) about 21 kyr ago is known to have been global in extent. Nonetheless, we have limited knowledge during the pre-LGM time in the southern middle latitudes. If we want to understand the causes of the ice ages, the complete glacial period must be addressed. In this paper, we show that the Patagonian Ice Sheet in southern South America reached its full glacial extent also by 57 kyr ago and defies a climate explanation.