Fig. 2: Pb isotopic signatures of Beaufort Sea sediment cores.
From: Arctic drainage of Laurentide Ice Sheet meltwater throughout the past 14,700 years
Authigenic (red) and detrital (blue) Pb Isotope records (206Pb/204Pb) for sediment cores JPC-15/27 (a), JPC-19 (b), and JPC-9 (c). Replicated authigenic compositions in (a) are shown as orange diamonds. Arrows (gray and black) indicate radiocarbon ages. Colored areas depicts the timing of major intervals explained in the discussion. The IRD Unit was defined by Klotsko et al. (2019)26.
