Dating ancient wood by high-sensitivity liquid scintillation counting and accelerator mass spectrometry - Pushing the boundaries
It is critical that a comprehensive terrestrial radiocarbon (14C) calibration curve is developed beyond 26 ka for high-precision calibration and correlation of climatic, environmental and archaeological records. Abundant sub-fossil New Zealand kauri (Agathis australis) wood, preserved in Oxygen Isotope Stage-2 and 3 peat swamps, provides an important resource for 14C calibration; nowhere else in the world does such an extensive collection of ancient wood exist. Although finite 14C ages beyond...[Show more]
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