Radiocarbon dating of a young speleothem record of paleoclimate for Angkor, Cambodia

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dc.contributor.authorHua, Qen_AU
dc.contributor.authorCook, Den_AU
dc.contributor.authorPenny, Den_AU
dc.contributor.authorBishop, Pen_AU
dc.contributor.authorBuckman, Sen_AU
dc.contributor.authorFohlmeister, Jen_AU
dc.date.accessioned2020-03-12T00:41:10Zen_AU
dc.date.available2020-03-12T00:41:10Zen_AU
dc.date.issued2016-01-01en_AU
dc.date.statistics2020-03-11en_AU
dc.description.abstractWe report the chronological construction for the top portion of a speleothem, PC1, from southern Cambodia with the aim of reconstructing a continuous high-resolution climate record covering the fluorescence and decline of the medieval Khmer kingdom and its capital at Angkor (~9th–15th centuries AD). Earlier attempts to date PC1 by the standard U-Th method proved unsuccessful. We have therefore dated this speleothem using radiocarbon. Fifty carbonate samples along the growth axis of PC1 were collected for accelerator mass spectrometry (AMS) analysis. Chronological reconstruction for PC1 was achieved using two different approaches described by Hua et al. (2012a) and Lechleitner et al. (2016a). Excellent concordance between the two age-depth models indicates that the top ~47 mm of PC1 grew during the last millennium with a growth hiatus during ~1250–1650 AD, resulting from a large change in measured 14C values at 34.4–35.2 mm depth. The timing of the growth hiatus covers the period of decades-long droughts during the 14th–16th centuries AD indicated in regional climate records.© 2017 by the Arizona Board of Regents on behalf of the University of Arizonaen_AU
dc.identifier.citationHua, Q., Cook, D., Fohlmeister, J., Penny, D., Bishop, P., & Buckman, S. (2017). Radiocarbon dating of a young speleothem record of paleoclimate for Angkor, Cambodia. Paper presented to the 8th International Symposium, Edinburgh, 27 June - 1 July 2016. In Radiocarbon, 59(6), 1873-1890. doi:10.1017/RDC.2017.115en_AU
dc.identifier.conferenceenddate1 July 2016en_AU
dc.identifier.conferencename8th International Symposiumen_AU
dc.identifier.conferenceplaceEdinburgh, Scotlanden_AU
dc.identifier.conferencestartdate27 June 2016en_AU
dc.identifier.govdoc7471en_AU
dc.identifier.issn0033-8222en_AU
dc.identifier.issue6en_AU
dc.identifier.journaltitleRadiocarbonen_AU
dc.identifier.pagination1873-1890en_AU
dc.identifier.urihttps://doi.org/10.1017/RDC.2017.115en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/9141en_AU
dc.identifier.volume59en_AU
dc.language.isoenen_AU
dc.publisherCambridge University Pressen_AU
dc.subjectPaleoclimatologyen_AU
dc.subjectClimatesen_AU
dc.subjectCarbon 14en_AU
dc.subjectAsiaen_AU
dc.subjectTropical regionsen_AU
dc.subjectCambodiaen_AU
dc.subjectMass spectroscopyen_AU
dc.titleRadiocarbon dating of a young speleothem record of paleoclimate for Angkor, Cambodiaen_AU
dc.typeConference Paperen_AU
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