Articles | Volume 70, issue 1
https://doi.org/10.5194/egqsj-70-105-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/egqsj-70-105-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
20 May 2021
Research article |
| 20 May 2021
| 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)
Instituto de Geografía, Facultad de Historia, Geografía y
Ciencia Política, Pontificia Universidad Católica de Chile, Avenida Vicuña
Mackenna 4860, Macul, Santiago, 782-0436, Chile
Christopher Lüthgens
Institute for Applied Geology, University of Natural Resources and
Life Sciences (BOKU), Vienna, 1190, Austria
Rodrigo M. Vega
Instituto de Ciencias de la Tierra, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, 5091000, Chile
Ángel Rodés
Scottish Universities Environmental Research Centre, Rankine Avenue, Scottish Enterprise Technology Park, East Kilbride, G75 0QF, UK
Andrew S. Hein
School of GeoSciences, University of Edinburgh, Edinburgh, Scotland, EH8 9XP, UK
Steven A. Binnie
Institut für Geologie und Mineralogie,
Universität zu Köln, Zülpicher Str. 49b, Gebäude 310, 50674,
Köln, Germany
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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.
The Last Glacial Maximum (LGM) about 21 kyr ago is known to have been global in extent....
