Browsing by Author "Boswijk, Gretel"

Now showing items 1-5 of 7

  • The first accurate and precise calendar dating of New Zealand Māori Pā, using Otāhau Pā as a case study.

    Hogg, Alan G.; Gumbley, Warren; Boswijk, Gretel; Petchey, Fiona; Southon, John R.; Anderson, Atholl; Roa, Tom; Donaldson, Lloyd A. (Elsevier, 2017)
    This research investigates the potential of radiocarbon wiggle-match dating of palisade posts to provide precise and accurate calendar ages for Māori pā (forts), using Otāhau Pā in the inland Waikato region, New Zealand, ...
  • Investigating the interhemispheric ¹⁴C offset in the 1st millennium AD and assessment of laboratory bias and calibration errors

    Hogg, Alan G.; Palmer, Jonathan G.; Boswijk, Gretel; Reimer, Paula J.; Brown, David (Arizona Board of Regents on behalf of the University of Arizona, 2009)
    Past measurements of the radiocarbon interhemispheric offset have been restricted to relatively young samples because of a lack of older dendrochronologically secure Southern Hemisphere tree-ring chronologies. The Southern ...
  • The New Zealand Kauri (Agathis Australis) Research Project: A Radiocarbon Dating Intercomparison of Younger Dryas Wood and Implications for IntCal13

    Hogg, Alan G.; Turney, Chris S.M.; Palmer, Jonathan G.; Southon, John R.; Kromer, Bernd; Ramsey, Christopher Bronk; Boswijk, Gretel; Fenwick, Pavala; Noronha, Alexandra; Staff, Richard; Friedrich, Michael; Reynard, Linda; Guetter, Dominik; Wacker, Lukas; Jones, Richard T. (The University of Arizona, 2013)
    We describe here the New Zealand kauri (Agathis australis) Younger Dryas (YD) research project, which aims to undertake Δ14C analysis of ~140 decadal floating wood samples spanning the time interval ~13.1–11.7 kyr cal BP. ...
  • Punctuated shutdown of Atlantic Meridional Overturning circulation during Greenland Stadial 1

    Hogg, Alan G.; Southon, John R.; Turney, Chris S.M.; Palmer, Jonathan; Bronk Ramsey, Christopher; Fenwick, Pavla; Boswijk, Gretel; Friedrich, Michael; Helle, Gerhard; Hughen, Konrad; Jones, Richard; Kromer, Bernd; Noronha, Alexandra; Reynard, Linda; Staff, Richard; Wacker, Lukas (Nature Publishing Group/Macmillan Publishers Limited, 2016)
    The Greenland Stadial 1 (GS-1; ~12.9 to 11.65 kyr cal BP) was a period of North Atlantic cooling, thought to have been initiated by North America fresh water runof that caused a sustained reduction of North Atlantic ...
  • Rapid global ocean-atmosphere response to Southern Ocean freshening during the last glacial

    Turney, Chris S.M.; Jones, Richard T.; Phipps, Steven J.; Thomas, Zoë; Hogg, Alan G.; Kershaw, A. Peter; Fogwill, Christopher J.; Palmer, Jonathan; Bronk Ramsey, Christopher; Adolphi, Florian; Muscheler, Raimund; Hughen, Konrad A.; Staff, Richard A.; Grosvenor, Mark; Golledge, Nicholas R.; Olander Rasmussen, Sune; Hutchinson, David K.; Haberle, Simon; Lorrey, Andrew; Boswijk, Gretel; Cooper, Alan (Nature Publishing Group, 2017)
    Contrasting Greenland and Antarctic temperatures during the last glacial period (115,000 to 11,650 years ago) are thought to have been driven by imbalances in the rates of formation of North Atlantic and Antarctic Deep ...