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Non-marine as well as marine and terrestrial sediments can be dated using this method.
Each sample is prepared in the same way as for a micropalaeontological analysis.
It was developed right after World War II by Willard F.
A reservoir correction factor must therefore be applied to conventional radiocarbon dates based on the remains of marine organisms.
Our reports contain official radiocarbon dating certificates for each sample together with calibration curves showing how each conventional radiocarbon age for samples has been calibrated with the calendar year curve.
Suitable for dating sediments up to c.45Ka old as long as they contain suitable biogenic material (molluscs, microfossils, wood).
This method is not without its own inaccuracies and has limited precision, but it does provide dates in terms of calendar years.
Extension of the calibration curve further back to about 24,000 calendar years BP has been achieved using U-Th decay series dates from marine organisms (principally corals).