A high-resolution radiocarbon calibration between 11,700 and 12,400 calendar years BP derived from 230Th ages of corals from Espiritu Santo Island, Vanuatu
作者： G. S. Burr , J. Warren Beck , F. W. Taylor , Jacques Récy , R. Lawrence Edwards
DOI: 10.1017/S0033822200019147
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摘要: This paper presents radiocarbon results from a single Diploastrea heliopora coral Vanuatu that lived during the Younger Dryas climatic episode, between ca. 11,700 and 12,400 calendar yr BP. The specimen has been independently dated with multiple 230Th measurements to permit calibration of 14C time scale. Growth bands in were used identify individual years growth. made on each year. These values averaged achieve decadal resolution for calibration. relative uncertainty data was below 1% (2σ). are good agreement existing dendrochronology allow high-resolution most years. Variations fine structure series preserved this demonstrate sporadic rapid increases Δ14C content surface ocean atmosphere. Certain sharp rises coincident gaps growth evidenced by several hiatuses. may be related changes occurred Dryas. is first only such set extend beyond dendrochronology-based
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