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. 2013 Feb 15;3:1285. doi: 10.1038/srep01285

Figure 5. Radiocarbon ages derived from dating the pelagic intervals.

Figure 5

Uncalibrated radiocarbon ages derived from dating the pelagic intervals above and below the megabed in cores CALA 04 and 05. The overlying pelagic samples from the two cores yield a cluster of ages between 215–530 (calibrated). There is a greater scatter in the underlying samples. The best estimate for the emplacement time of the megabed is thus given by the dates of the upper pelagic units. The age of the Santorini caldera collapse and the top of the sapropels S1 are also indicated. a: zoom of the top of the HAT represented by the mm-thick reddish and black level enriched in Fe and Mn and with abundant Fe/Mn micronodules; 1: coloured microphotograph of the sediment fraction of the pelagic unit P3 above the HAT. 2: coloured microphotograph of the sediment fraction within the HAT basal unit III. 3: coloured microphotograph of the sediment fraction within the HAT basal unit II. 4: coloured microphotograph of the sediment fraction within the HAT basal unit I. See Supplementary Material 2 and 3 for details on the composition.