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    • Pollen concentrated for radiocarbon dating.
    Rights: GNS Science Published 11 May 2011 Size: 1.4 MB Referencing Hub media

    Some of the sediment in the Ōkārito core does not contain much organic material, so pollen is concentrated to give a big enough sample for accelerator mass spectrometry radiocarbon dating.

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      Ice ages unearthed

      Clues to New Zealand’s past have been unearthed in a peat bog on the west coast of the South Island. Dr Marcus Vandergoes of GNS Science has taken 10 m deep cores (5 cm diameter columns of ...

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