Waikato radiocarbon dating laboratory

University of Waikato Radiocarbon Dates I

Associate Professor Fiona Petchey , Deputy Director of the University of Waikato Radiocarbon Dating Laboratory, is researching ways to refine the marine calibration curve used for converting carbon values into calendar dates. Fiona is sampling shell and charcoal for radiocarbon dating. Early in the use of radiocarbon dating , scientists began to see discrepancies between measured ages from the radiocarbon dating process the conventional radiocarbon age or CRA and known historical dates for artefacts. As a result, calibration curves were developed to enable experts to infer calendar dates from CRAs. Currently, three curves are available and the limitations of applying these have become apparent over the decades. Fluctuations in atmospheric and marine carbon are often unique to different geographical locations. Director of the Waikato Radiocarbon Dating Laboratory at the University of Waikato, Associate Professor Fiona Petchey talks about radiocarbon dating calibration curves and the challenges they present. Select here to view video transcript, questions for discussion and copyright information.

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Unfortunately you are viewing this website on an outdated browser which does not support the necessary features for us to provide an adequate experience. The Rafter Radiocarbon Laboratory is the oldest continuously operating radiocarbon facility in the world. The work we do addresses issues of importance to New Zealanders. It has practical applications for government, industry and communities needing to understand and address climate change and wanting to move towards a carbon-zero future. We provide radiocarbon preparation and AMS measurement, research design and data interpretation services across the Earth sciences spectrum, including:. Our state-of-the-art sample preparation laboratory supports a variety of physical and chemical pre-treatment techniques. Samples are prepared to CO 2 gas by combustion, hydrolysis or CO 2 extraction and graphitised using the iron-hydrogen method prior to measurement.

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To browse Academia. The radiocarbon dating laboratory at Waikato was established in , primarily as a research tool in the fields of geomorphology, volcanology, tephrostratigraphy, coastal studies, and paleolimnology, to cope with the increasing supply of late Quaternary lake sediment, wood, peat, and shell samples submitted by University staff and postgraduate students undertaking research in the North Island of New Zealand. This date list reports on samples submitted by University of Waikato researchers and assayed in the Waikato laboratory mainly between and Other dates on material submitted by individuals working in other organizations in New Zealand, and overseas, are to be reported later. Simon H Bickler.

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Rafter Radiocarbon Laboratory

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