文章基本信息

标题：A temperature index in a Late Quaternary sequence at Wonderkrater, South Africa
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作者：J. Francis Thackeray
期刊名称：South African Journal of Science
印刷版ISSN：0038-2353
电子版ISSN：1996-7489
出版年度：2018
卷号：114
期号：5-6
页码：13-14
DOI：10.17159/sajs.2018/a0268
语种：English
出版社：The Foundation for Research Development
摘要：Wonderkrater is a Late Quaternary archaeological site in the Limpopo Province of South Africa 1 , and has a high-resolution Late Quaternary pollen sequence 2-4 . An initial multivariate analysis of pollen spectra facilitated the quantification of a temperature index (SSF1) for two borehole sequences. 5 An attempt to calibrate the SSF1 temperature indices was made by Thackeray 6 . Scott et al. 7 and Thackeray and Scott 8 identified the ‘Younger Dryas’ cooling event in Borehole 3. This palaeoclimatic phenomenon is generally known in the northern hemisphere, dated between 10 600 and 12 900 BP (calibrated years). In this study, palaeotemperature estimates from the initial multivariate study 5 are re-examined in the context of calibrated radiocarbon dates 7 in order to make comparisons with dates for the Younger Dryas in the northern hemisphere.
关键词：Younger Dryas;age-depth relationships;pollen spectra;radiocarbon dates