Figure 2: Sediment record of massive PF-C remobilization during the YD-PB transition and ice core data from Greenland.
From: Massive remobilization of permafrost carbon during post-glacial warming
(a) Oxygen isotopes (δ18O) from Greenland ice cores17 (NGRIP; yellow squares and line, five-point weighted average); (b) OC flux (red circles and line and (c) δ13C (green circles and line) from the sediment record collected in the Laptev Sea (PC23); (d) dust concentration (particles per ml) from Greenland ice cores32 (NGRIP; grey squares and line, five-point weighted average); (e) weighted average hydrogen isotopic composition (δ2H) of high-molecular-weight (HMW) saturated odd n-alkanes (C25, C27, C29 and C31; pink circles and line), (f) flux of lignin phenols (dark blue circles and line) and (g) cutin-derived products (light blue circles and line) from PC23 core. The grey vertical region shows the high OC accumulation period. The uncertainty in the Greenland ice core chronology at the YD-PB transition is 99 years (2σ, not shown)87.
