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If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies.

It is a combination of standard, commercially available equipment handled in a clean room by an individual trained to recognize pollen.

A typical example requires about 15–20 h of hand-picking under the microscope.

We show the usefulness of this procedure with results on a mid-Holocene segment from a core from Mono Lake.

The pollen dated To send this article to your Kindle, first ensure [email protected] added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Note you can select to send to either the @free.or @variations.The measurement time is much more rapid – you don’t have to sit around and wait for the carbon-14s to decay – and also the precision is better.Well unfortunately, AMS dating is expensive because of the amount of equipment that’s involved and because the sample preparation is a lot more labour intensive.Dr Christine Prior is Team Leader of the Rafter Radiocarbon Laboratory at GNS Science.In this video, she compares conventional and accelerator mass spectrometry (AMS) radiocarbon dating.

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