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The Waikato Radiocarbon Dating Laboratory is involved in research projects around the globe, which cover a diverse range of radiocarbon dating topics/areas.Current projects involve researching the history of Arnhem Land ancestral sites in northern Australian, surveying and excavating shell mounds across Cape York Peninsular, studying the high-resolution store of information about past environmental conditions from sub-fossil kauri logs and identifying how Asian civilisations emerged.

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– Sediments are complex systems containing carbon of multiple forms, sizes ranges and sources.

Please contact us to discuss the nature of your research objective to ensure the most appropriate pretreatment of your sediment sample.

You are welcome to contact us to discuss the pretreatment or request that we contact you after the pretreatment to discuss options for radiocarbon dating. However, knowing the dry weight will better allow you to estimate the amount of material to send.

If you want to dry your samples, heating at 90°C to 100°C for 4-24 hours is recommended.

Sending wet or frozen samples for radiocarbon dating is fine.

The lab starts the analyses immediately upon arrival of the sample so moisture will not induce contamination.Please remove excess water, wrap the samples with plastic (e.g.Saran Wrap) to limit air contact, place them in a Ziplock bag, and ship to us.– Due to complex soil geochemistry, it may be better to date extracted macrofossils in some circumstances.In the absence of macrofossils, radiocarbon dating can be done on sediment bulk organic fraction, humic fraction, or humin fraction.– If the macrofossils are chosen for the analysis, the reported results will be as “plant material”.

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