Assessment of climatic influences on 14C activity in a Holocene stalagmite from Flores, Indonesia
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Date
2010-06-30
Journal Title
Journal ISSN
Volume Title
Publisher
University of Newcastle
Abstract
In the last decade, a number of speleothem studies have used radiocarbon dating to address a range of paleoclimate problems. These have included the use of the bomb pulse to anchor chronologies over the last 60 years (Mattey et al 2008), the combining of U-series and radiocarbon measurements to improve the radiocarbon calibration curve (Beck et al. 2001), and linking atmospheric radiocarbon variations with climate changes (McDermott et al. 2008). Central to a number of these studies is how to constrain, or interpret variations in, the amount of radioactively dead carbon (i.e. the dead carbon fraction, or DCF) that contributes to a speleothem radiocarbon measurement. In this study, we use radiocarbon measurements, stable isotope and trace element geochemistry, and U-series ages to examine DCH variations between 2.4 and 2.8 ka in a previously studied (Griffiths et al. 2009; 2010) speleothem from Liang Luar, Flores, Indonesia.
Description
Keywords
Carbon 14, Climates, Quaternary period, Indonesia, Paleoclimatology, Age estimation
Citation
Griffiths, M. L., Drysdale, R. N., Hua, Q., Hellstrom, J. C., Frisia, S., Gagan, M. K., Zhao, J. X., & Ayliffe, L. K. (2010). Assessment of climatic influences on 14C activity in a Holocene stalagmite from Flores, Indonesia. Poster presented to the 3rd Dated Speleothems - Archives of the Paleoenvironment (DAPHNE) Workshop, 30th June – 2nd July 2010. Kranebitter Hof: Innsbruck, Austria.