TY - JOUR
T1 - The New Zealand kauri (Agathis australis) research project
T2 - A radiocarbon dating intercomparison of Younger Dryas wood and implications for IntCal13
AU - Hogg, Alan
AU - Turney, Chris
AU - Palmer, Jonathan
AU - Southon, John
AU - Kromer, Bernd
AU - Bronk Ramsey, Christopher
AU - Boswijk, Gretel
AU - Fenwick, Pavla
AU - Noronha, Alexandra
AU - Staff, Richard
AU - Friedrich, Michael
AU - Reynard, Linda
AU - Guetter, Dominik
AU - Wacker, Lukas
AU - Jones, Richard
PY - 2013
Y1 - 2013
N2 - 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. We report 14C intercomparison measurements being undertaken by the carbon dating laboratories at University of Waikato (Wk), University of California at Irvine (UCI), and University of Oxford (OxA). The Wk, UCI, and OxA laboratories show very good agreement with an interlaboratory comparison of 12 successive decadal kauri samples (average offsets from consensus values of -7 to +4 14C yr). A University of Waikato/University of Heidelberg (HD) intercomparison involving measurement of the YD-age Swiss larch tree Ollon505, shows a HD/Wk offset of ~10-20 14C yr (HD younger), and strong evidence that the positioning of the Ollon505 series is incorrect, with a recommendation that the 14C analyses be removed from the IntCal calibration database.
AB - 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. We report 14C intercomparison measurements being undertaken by the carbon dating laboratories at University of Waikato (Wk), University of California at Irvine (UCI), and University of Oxford (OxA). The Wk, UCI, and OxA laboratories show very good agreement with an interlaboratory comparison of 12 successive decadal kauri samples (average offsets from consensus values of -7 to +4 14C yr). A University of Waikato/University of Heidelberg (HD) intercomparison involving measurement of the YD-age Swiss larch tree Ollon505, shows a HD/Wk offset of ~10-20 14C yr (HD younger), and strong evidence that the positioning of the Ollon505 series is incorrect, with a recommendation that the 14C analyses be removed from the IntCal calibration database.
UR - http://www.scopus.com/inward/record.url?scp=84887536792&partnerID=8YFLogxK
U2 - 10.2458/azu_js_rc.v55i2.16217
DO - 10.2458/azu_js_rc.v55i2.16217
M3 - Article
AN - SCOPUS:84887536792
SN - 0033-8222
VL - 55
SP - 2035
EP - 2048
JO - Radiocarbon
JF - Radiocarbon
IS - 4
ER -