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Core depth
(cm) Sample ID BMS-345541 # 14C-age
(year) 1σ error
(± year) 2σ range cal. age
(yrs BP P = AD 1950) Median probability age
(yrs BP) Sedimentation rate
(cm ka− 1)
8 UCIAMS-78807 550 15 125–260 194 –
128 UCIAMS-78808 2005 15 1504–1647 1565 88
203 UCIAMS-78809 4035 15 3973–4134 4054 30
328 UCIAMS-78810 9480 20 10237–10411 10323 20
353 UCIAMS-78811 11630 25 13061–13276 13139 9
368 UCIAMS-78812 14775 35 17162–17804 17479 3
423 UCIAMS-78813 19345 50 22275–22715 22521 11
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Full-size image (120 K)
Fig. 5.
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Stable oxygen isotope analyses (δ18O) were performed on 5–6 individuals of the benthic foraminifera Cibicidoides kullenbergi (> 150 μm, 5 cm sample resolution). The isotopic composition was measured with a Finnigan MAT 251 mass spectrometer (MARUM Isotope Laboratory, University of Bremen, Germany). A working standard (Burgbrohl CO2 gas) was applied, which has been calibrated against PDB by using the NBS 18, 19 and 20 standards. All isotope data given here are relative to the PDB standard. The analytical standard deviation was about ± 0.07‰ PDB.