Fig. 2: Multiproxy records from slope Site U1421 from 27 to 15 kyr ago.
From: Sediment controls dynamic behavior of a Cordilleran Ice Stream at the Last Glacial Maximum
a Global mean sea level curve (m)24. b Regional sea surface temperature proxies from EW0408-85JC26 and MD02-249625 (Fig. 1). Mg/Ca values plotted using 4-pt moving average. c Values for δ18O analysis of N. pachyderma (sin.) in samples from site U1421 and survey site EW0408-85JC27. Error bars (±1 sigma) are smaller than symbol size. d Percentage of benthic foraminifera indicative of meltwater. e Diatom valves per gram sediment. f Mean sedimentation rates (m kyr−1) binned at 1000-year intervals. One-sigma error is denoted by the dashed lines. g Distribution of grain sizes and lithofacies (I–IV). h Ice-rafted debris mass accumulation rate (g cm−2kyr−1). Gray shaded areas are intervals of no core recovery. Black diamonds are radiocarbon dates. Last Glacial Maximum from 26.5 to 19 ka cal BP14 is shown by purple bar.
