Holocene glacier history of northeastern Cordillera Darwin, southernmost South America (55°S)

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dc.catalogadorjca
dc.contributor.authorReynhout, Scott A.
dc.contributor.authorKaplan, Michael R.
dc.contributor.authorSagredo T., Esteban
dc.contributor.authorAravena, Juan Carlos
dc.contributor.authorSoteres García, Rodrigo León
dc.contributor.authorSchwartz, Roseanne
dc.contributor.authorSchaefer, Joerg M.Reynhout, Scott A.
dc.contributor.authorKaplan, Michael R.
dc.contributor.authorSagredo T., Esteban
dc.contributor.authorAravena, Juan Carlos
dc.contributor.authorSoteres García, Rodrigo León
dc.contributor.authorSchwartz, Roseanne
dc.contributor.authorSchaefer, Joerg M.
dc.date.accessioned2023-05-12T15:36:59Z
dc.date.available2023-05-12T15:36:59Z
dc.date.issued2022
dc.description.abstractIn the Cordillera Darwin, southernmost South America, we used 10Be and 14C dating, dendrochronology, and historical observations to reconstruct the glacial history of the Dalla Vedova valley from deglacial time to the present. After deglacial recession into northeastern Darwin and Dalla Vedova, by ~16 ka, evidence indicates a glacial advance at ~13 ka coeval with the Antarctic Cold Reversal. The next robustly dated glacial expansion occurred at 870 ± 60 calendar yr ago (approximately AD 1150), followed by less-extensive dendrochronologically constrained advances from shortly before AD 1836 to the mid-twentieth century. Our record is consistent with most studies within the Cordillera Darwin that show that the Holocene glacial maximum occurred during the last millennium. This pattern contrasts with the extensive early- and mid-Holocene glacier expansions farther north in Patagonia; furthermore, an advance at 870 ± 60 yr ago may suggest out-of-phase glacial advances occurred within the Cordillera Darwin relative to Patagonia. We speculate that a southward shift of westerlies and associated climate regimes toward the southernmost tip of the continent, about 900–800 yr ago, provides a mechanism by which some glaciers advanced in the Cordillera Darwin during what is generally considered a warm and dry period to the north in Patagonia.
dc.fechaingreso.objetodigital2023-05-12
dc.fuente.origenORCID
dc.identifier.doi10.1017/qua.2021.45
dc.identifier.eissn1096-0287
dc.identifier.issn0033-5894
dc.identifier.urihttps://doi.org/10.1017/qua.2021.45
dc.identifier.urihttps://www.cambridge.org/core/journals/quaternary-research/article/holocene-glacier-history-of-northeastern-cordillera-darwin-southernmost-south-america-55s/D07172CB5A10146969534F15A5CD4CB9
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/66971
dc.information.autorucInstituto de Geografía;Soteres García, Rodrigo León;0000-0003-3647-5342;250269
dc.information.autorucInstituto de Geografía;Sagredo T., Esteban;0000-0002-4494-5423;16924
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final181
dc.pagina.inicio166
dc.revistaQuaternary Research
dc.rightsacceso restringido
dc.subjectGlacier
dc.subjectHolocene
dc.subjectPaleoclimate
dc.subjectWesterlies
dc.subjectPatagonia
dc.subjectTierra del Fuego
dc.subjectCordillera Darwin
dc.subject.ddc550
dc.subject.deweyCiencias de la tierraes_ES
dc.subject.ods13 Climate action
dc.subject.odspa13 Acción por el clima
dc.titleHolocene glacier history of northeastern Cordillera Darwin, southernmost South America (55°S)
dc.typeartículo
dc.volumen105
sipa.codpersvinculados250269
sipa.codpersvinculados16924
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