Marine04 marine radiocarbon age calibration, 0-26 cal kyr BP

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Hughen, Konrad A.
Baillie, Mike G. L.
Bard, Edouard
Beck, J. Warren
Bertrand, Chanda J. H.
Blackwell, Paul G.
Buck, Caitlin E.
Burr, George S.
Cutler, Kirsten B.
Damon, Paul E.
Edwards, R. Lawrence
Fairbanks, Richard G.
Friedrich, Michael
Guilderson, Thomas P.
Kromer, Bernd
McCormac, Gerry
Manning, Sturt
Bronk Ramsey, Christopher
Reimer, Paula J.
Reimer, Ron W.
Remmele, Sabine
Southon, John R.
Stuiver, Minze
Talamo, Sahra
Taylor, F. W.
van der Plicht, Johannes
Weyhenmeyer, Constanze E.
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New radiocarbon calibration curves, IntCal04 and Marine04, have been constructed and internationally ratified to replace the terrestrial and marine components of IntCal98. The new calibration data sets extend an additional 2000 yr, from 0–26 cal kyr BP (Before Present, 0 cal BP = AD 1950), and provide much higher resolution, greater precision, and more detailed structure than IntCal98. For the Marine04 curve, dendrochronologically-dated tree-ring samples, converted with a box diffusion model to marine mixed-layer ages, cover the period from 0–10.5 cal kyr BP. Beyond 10.5 cal kyr BP, high-resolution marine data become available from foraminifera in varved sediments and U/Th-dated corals. The marine records are corrected with site-specific 14C reservoir age information to provide a single global marine mixed-layer calibration from 10.5–26.0 cal kyr BP. A substantial enhancement relative to IntCal98 is the introduction of a random walk model, which takes into account the uncertainty in both the calendar age and the 14C age to calculate the underlying calibration curve (Buck and Blackwell, this issue). The marine data sets and calibration curve for marine samples from the surface mixed layer (Marine04) are discussed here. The tree-ring data sets, sources of uncertainty, and regional offsets are presented in detail in a companion paper by Reimer et al. (this issue).
Author Posting. © Arizona Board of Regents on behalf of the University of Arizona, 2004. This article is posted here by permission of Dept. of Geosciences, University of Arizona for personal use, not for redistribution. The definitive version was published in Radiocarbon 46 (2004): 1059-1086.
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Radiocarbon 46 (2004): 1059-1086
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