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Decadally Resolved Lateglacial Radiocarbon Evidence from New Zealand Kauri

Urheber*innen

Hogg,  A.
External Organizations;

Southon,  J.
External Organizations;

Turney,  C.
External Organizations;

Palmer,  J.
External Organizations;

Bronk Ramsey,  C.
External Organizations;

Fenwick,  P.
External Organizations;

Boswijk,  G.
External Organizations;

Büntgen,  U.
External Organizations;

Friedrich,  M.
External Organizations;

/persons/resource/ghelle

Helle,  G.
5.2 Climate Dynamics and Landscape Evolution, 5.0 Geoarchives, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Hughen,  K.
External Organizations;

Jones,  R.
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Kromer,  B.
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Noronha,  A.
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Reinig,  F.
External Organizations;

Reynard,  L.
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Staff,  R.
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Wacker,  L.
External Organizations;

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Zitation

Hogg, A., Southon, J., Turney, C., Palmer, J., Bronk Ramsey, C., Fenwick, P., Boswijk, G., Büntgen, U., Friedrich, M., Helle, G., Hughen, K., Jones, R., Kromer, B., Noronha, A., Reinig, F., Reynard, L., Staff, R., Wacker, L. (2016): Decadally Resolved Lateglacial Radiocarbon Evidence from New Zealand Kauri. - Radiocarbon, 58, 4, 709-733.
https://doi.org/10.1017/RDC.2016.86


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1809890
Zusammenfassung
The Last Glacial–Interglacial Transition (LGIT; 15,000–11,000 cal BP) was characterized by complex spatiotemporal patterns of climate change, with numerous studies requiring accurate chronological control to decipher leads from lags in global paleoclimatic, paleoenvironmental, and archaeological records. However, close scrutiny of the few available tree-ring chronologies and radiocarbon-dated sequences composing the IntCal13 14C calibration curve indicates significant weakness in 14C calibration across key periods of the LGIT. Here, we present a decadally resolved atmospheric 14C record derived from New Zealand kauri spanning the Lateglacial from ~13,100–11,365 cal BP. Two floating kauri 14C time series, curve-matched to IntCal13, serve as a 14C backbone through the Younger Dryas. The floating Northern Hemisphere (NH) 14C data sets derived from the YD-B and Central European Lateglacial Master tree-ring series are matched against the new kauri data, forming a robust NH 14C time series to ~14,200 cal BP. Our results show that IntCal13 is questionable from ~12,200–11,900 cal BP and the ~10,400 BP 14C plateau is approximately 5 decades too short. The new kauri record and repositioned NH pine 14C series offer a refinement of the international 14C calibration curves IntCal13 and SHCal13, providing increased confidence in the correlation of global paleorecords.