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The Holocene
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The use of chironomid remains for AMS 14C dating of lake sediments

V.J. Jones

Environmental Change Research Centre, Department of Geography, University College London, 26 Bedford Way, London WC1H OAP, UK

R.W. Battarbee

Environmental Change Research Centre, Department of Geography, University College London, 26 Bedford Way, London WC1H OAP, UK

R.E.M. Hedges

Research Laboratory for Archaeology and the History of Art, Keble Road, Oxford OX1 3QJ, UK

Chironomid remains from lake sediments can be used as a source of carbon for AMS (accelerator mass spectrometry) 14C dating. Four chironomid AMS dates were obtained from the Round Loch of Glenhead and compared with conventional bulk dates. Results showed chironomid dates to be younger than their conventional equivalents, although the chironomid series included a dating inversion. Nevertheless these preliminary results indicate the potential of this carbon source for dating, and provide a unique application of the AMS dating method. This technique may be useful where conventional dates are adversely affected by older allochthonous carbon. However, further evaluation is required, including testing chironomid dates against sediments of known calendar age.

Key Words: chironomid • AMS dating • lake sediments • radiocarbon dating

The Holocene, Vol. 3, No. 2, 161-163 (1993)
DOI: 10.1177/095968369300300207
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