1. Findings from an in-Depth Annual Tree-Ring Radiocarbon Intercomparison
- Author
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Alexander Cherkinsky, Todd Lange, Michael W. Dee, Ronny Friedrich, Margot Kuitems, Richard A. Staff, Lukas Wacker, G. V. Ravi Prasad, Manuela Capano, C. Bronk Ramsey, Alan G. Hogg, A. Bayliss, J. P. Naysmith, Martin Seiler, Silvia Bollhalder, T. Tuna, E. M. Scott, David Brown, John Southon, Brendan J. Culleton, Bente Philippsen, Takayuki Omori, Fiona Petchey, Fusa Miyake, Edouard Bard, Jesper V. Olsen, Toshio Nakamura, Timothy D J Knowles, Michael Friedrich, Greg Hodgins, David Chivall, Marie-Josée Nadeau, D. J. Kennett, Collège de France - Chaire Evolution du climat et de l'océan, Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), European Research Council (ERC)European Commission714679College de France EQUIPEX ASTERCEREGE French National Research Agency (ANR), ANR-17-CE01-0001,CARBOTRYDH,Etude à haute résolution du radiocarbone des séries d'anneaux d'arbres des Alpes du Sud pour le Dryas Récent et l'Holocène: Une fenêtre sur le passé pour comprendre les variations rapides du cycle du carbone et de l'activité solaire(2017), Chaire Evolution du climat et de l'océan, and Isotope Research
- Subjects
010506 paleontology ,Archeology ,Accuracy and precision ,Calibration curve ,annual, 14C, calibration, dendrochronology, Thera ,7. Clean energy ,01 natural sciences ,radiocarbon intercomparison ,law.invention ,law ,[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry ,Calibration ,Dendrochronology ,0601 history and archaeology ,Radiocarbon dating ,0105 earth and related environmental sciences ,Remote sensing ,060102 archaeology ,IntCal ,06 humanities and the arts ,Annual tree rings ,High precision ,Radiocarbon intercomparison ,calibration ,annual tree rings ,General Earth and Planetary Sciences ,Environmental science ,high precision ,Accelerator mass spectrometry - Abstract
In 2018 Pearson et al. published a new sequence of annual radiocarbon (14C) data derived from oak (Quercus sp.) trees from Northern Ireland and bristlecone pine (Pinus longaeva) from North America across the period 1700–1500 BC. The study indicated that the more highly resolved shape of an annually based calibration dataset could improve the accuracy of 14C calibration during this period. This finding had implications for the controversial dating of the eruption of Thera in the Eastern Mediterranean. To test for interlaboratory variation and improve the robustness of the annual dataset for calibration purposes, we have generated a replicate sequence from the same Irish oaks at ETH Zürich. These data are compatible with the Irish oak 14C dataset previously produced at the University of Arizona and are used (along with additional data) to examine inter-tree and interlaboratory variation in multiyear annual 14C time-series. The results raise questions about regional 14C offsets at different scales and demonstrate the potential of annually resolved 14C for refining sub decadal and larger scale features for calibration, solar reconstruction, and multiproxy synchronization.
- Published
- 2020