Fig. 6: Age model and correlation of 12-GC and 14-GC.
From: Seasonal sea-ice in the Arctic’s last ice area during the Early Holocene
Core photos, schematic of major lithological units (as in Fig. 5), XRF Ca/Ti (black, 20-pt average in red-brown), and age-depth relationship of (a) 12-GC and (b) 14-GC, including the correlation between both cores (horizontal black dashed lines). The depth of individual radiocarbon ages is marked with triangles on the core photos and black dots on the age-depth relationship graph. Boundaries used for age modelling (see text) are marked by yellow crosses, age-depth tie points with green diamonds, and the top of each core is indicated with a pink star. The likelihood distribution (pink) is shown for outlier radiocarbon ages. Both age models include the mean (blue line) based on a ΔR of 300 ± 0 and the uncertainty envelope (light blue) based on a ΔR uncertainty of 300 (ΔR = 0 ± 0 and ΔR = 600 ± 0). The dashed blue lines indicated the 1σ uncertainty of the smallest/largest ΔR, respectively.
