Glacial and Holocene terrestrial temperature variability in subtropical east Australia as inferred from branched GDGT distributions in a sediment core from Lake McKenzie.

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dc.contributor.authorWoltering, Men_AU
dc.contributor.authorAtahan, Pen_AU
dc.contributor.authorGrice, Ken_AU
dc.contributor.authorHeijnis, Hen_AU
dc.contributor.authorTaffs, Ken_AU
dc.contributor.authorDodson, JRen_AU
dc.date.accessioned2014-09-02T23:40:59Zen_AU
dc.date.available2014-09-02T23:40:59Zen_AU
dc.date.issued2014-07-01en_AU
dc.date.statistics2014-07-03en_AU
dc.description.abstractBranched glycerol dialkyl glycerol tetraether (GDGT) distributions observed in a sediment core from Lake McKenzie were utilized to quantitatively reconstruct the pattern of mean annual air temperature (MAAT) from coastal subtropical eastern Australia between 37 and 18.3 cal ka BP and 14.0 cal ka BP to present. Both the reconstructed trend and amplitude of MAAT changes from the top of the sediment core were nearly identical to a local instrumental MAAT record from Fraser Island, providing confidence that in this sediment core branched GDGTs could be used to produce a quantitative record of past MAAT. The reconstructed trend of MAAT during 37 to 183 cal ka BP and timing of the Last Glacial Maximum (LGM) in the Lake McKenzie record were in agreement with previously published nearby marine climate records. The amplitude of lower-than-present MAAT during the LGM potentially provides information on the latitude of separation of the Tasman Front from the East Australian current in the subtropical western Pacific. The Lake McKenzie record shows an earlier onset of near modern day warm temperatures in the early Holocene compared to marine records and the presence of a warmer than present day period during the mid-Holocene. © 2014, Elsevier Inc.en_AU
dc.identifier.citationWoltering, M., Atahan, P., Grice, K., Heijnis, H., Taffs, K., & Dodson, J. (2014). Glacial and holocene terrestrial temperature variability in subtropical east australia as inferred from branched gdgt distributions in a sediment core from lake mckenzie. Quaternary Research, 82(1), 132-145. doi:10.1016/j.yqres.2014.02.005en_AU
dc.identifier.govdoc5660en_AU
dc.identifier.issn0033-5894en_AU
dc.identifier.issue1en_AU
dc.identifier.journaltitleQuaternary Researchen_AU
dc.identifier.pagination132-145en_AU
dc.identifier.urihttp://dx.doi.org/10.1016/j.yqres.2014.02.005en_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/5837en_AU
dc.identifier.volume82en_AU
dc.language.isoenen_AU
dc.publisherElsevier Inc.en_AU
dc.subjectAustraliaen_AU
dc.subjectAquatic ecosystemsen_AU
dc.subjectLakesen_AU
dc.subjectSouthern Hemisphereen_AU
dc.subjectDistributionen_AU
dc.subjectLipidsen_AU
dc.titleGlacial and Holocene terrestrial temperature variability in subtropical east Australia as inferred from branched GDGT distributions in a sediment core from Lake McKenzie.en_AU
dc.typeJournal Articleen_AU
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