articleRadiocarbonAug 1, 2020HYBRID OA

Marine20—The Marine Radiocarbon Age Calibration Curve (0–55,000 cal BP)

THTimothy HeatonPKPeter KöhlerMBMartin ButzinÉBÉdouard BardRRRon Reimer

University of Sheffield · Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung · +16 more institutions

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Abstract

ABSTRACT The concentration of radiocarbon ( 14 C) differs between ocean and atmosphere. Radiocarbon determinations from samples which obtained their 14 C in the marine environment therefore need a marine-specific calibration curve and cannot be calibrated directly against the atmospheric-based IntCal20 curve. This paper presents Marine20, an update to the internationally agreed marine radiocarbon age calibration curve that provides a non-polar global-average marine record of radiocarbon from 0–55 cal kBP and serves as a baseline for regional oceanic variation. Marine20 is intended for calibration of marine radiocarbon samples from non-polar regions; it is not suitable for calibration in polar regions where…

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Topics & keywords

Topics
Keywords
  • Radiocarbon dating
  • Geology
  • Calibration
  • Calibration curve
  • Absolute dating
  • Geochronology
  • Archaeology
  • Oceanography
UN Sustainable Development Goals
  • Life below water
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