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dc.contributor.authorMcCulloch, Roberten_UK
dc.contributor.authorFogwill, Chrisen_UK
dc.contributor.authorSugden, David Een_UK
dc.contributor.authorBentley, Michael Jen_UK
dc.contributor.authorKubik, Peteren_UK
dc.description.abstractGlacier fluctuations in the Strait of Magellan tell of the climatic changes that affected southern latitudes at c. 53–55°S during the Last Glacial Maximum (LGM) and Late-glacial/Holocene transition. Here we present a revised chronology based on cosmogenic isotope analysis, amino acid racemisation and tephrochronology. We unpick the effect of bedrock-derived lignite which has affected many new and revised dates that constrain five glacier advances (A to E). Advance A is prior to the LGM. LGM is represented by Advance B that reached and largely formed the arcuate peninsula Juan Mazia. Carbon-14 and 10Be dating show it occurred after 31 250 cal yrs BP and culminated at 25 200–23 100 cal yrs BP and was then followed by the slightly less extensive advance C sometime before 22 400–20 300 cal yrs BP. This pattern of an early maximum is found elsewhere in South America and more widely. Stage D, considerably less extensive, culminated sometime before 17 700–17 600 cal yrs BP and was followed by rapid and widespread glacier retreat. Advance E, which dammed a lake, spanned 15 500–11 770 cal yrs BP overlaps the Bølling–Allerød interstadials and the glacier retreat occurs during the peak of the Younger Dryas stadial in the northern hemisphere. However, the stage E advance coincides with the Antarctic Cold Reversal (c. 14 800–12 700 cal yrs BP) and may indicate that some millennial-scale climatic fluctuations in the Late-glacial period are out of phase between the northern and southern hemispheres.en_UK
dc.relationMcCulloch R, Fogwill C, Sugden DE, Bentley MJ & Kubik P (2005) Chronology of the last glaciation in central Strait of Magellan and Bahia Inutil, southernmost South America. Geografiska Annaler: Series A, Physical Geography, 87 (2), pp. 289-312.
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.titleChronology of the last glaciation in central Strait of Magellan and Bahia Inutil, southernmost South Americaen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[McCulloch et al 289.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.citation.jtitleGeografiska Annaler: Series A, Physical Geographyen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversity of Sydneyen_UK
dc.contributor.affiliationUniversity of Edinburghen_UK
dc.contributor.affiliationDurham Universityen_UK
dc.contributor.affiliationETH Zurichen_UK
dc.subject.tagEnvironmental Geographyen_UK
dc.subject.tagEnvironmental Changeen_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorMcCulloch, Robert|0000-0001-5542-3703en_UK
local.rioxx.authorFogwill, Chris|en_UK
local.rioxx.authorSugden, David E|en_UK
local.rioxx.authorBentley, Michael J|en_UK
local.rioxx.authorKubik, Peter|en_UK
local.rioxx.projectInternal Project|University of Stirling|
local.rioxx.filenameMcCulloch et al 289.pdfen_UK
Appears in Collections:Biological and Environmental Sciences Journal Articles

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