NJG69-4-01
1989
Some erroneous radiocarbon dates of lacustrine sediments
69
4
201-208

In some cases radiocarbon datings of both the NaOH soluble fraction and the insoluble fraction of
lacustine sediments give different ages as a result of dating errors: (1) the insoluble fraction is too old, due probably to contamination by old inactive carbon, either bedrock-derived graphite or carbonate; (2) the soluble part is also too old, due probably to hard-water effect or contamination by redeposited interstadial organic carbon.

0029-196X
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