Figure 1
From: Anaerobic methanotrophic communities thrive in deep submarine permafrost
Pore water profiles of methane, nitrate, sulfate, manganese and relative archaeal abundance in the Mamontov Klyk core C2. (A) Methane concentrations are shown in black and corresponding δ13C-values in magenta19. (B) Nitrate concentrations are shown in blue, sulfate concentrations in red, manganese concentrations in green, and iron concentrations in light blue. (C) Purple dots on the left show depth location in the core. Relative abundance of archaeal 16S rRNA gene sequences are shown as bar plots. Colors of bars refer to the taxa in the legend below figure. Numbers on the right refer to the exact depth in the core. ANME = ANaerobic MEthanotrophic archaea, DHVEG-1 = Deep Hydrothermal Vent Euryarchaeotal Group 1, DSPEG = Deep Submarine Permafrost Euryarchaeotal Group, MBG-B = Marine Benthic Group B, MBG-D = Marine Benthic Group D, MCG = Miscellaneous Crenarchaeotal Group. The shaded area represents the permafrost degradation zone, the red area a sulfate-methane transition zone, and the light blue areas ice-bonded permafrost. All uncolored areas of the plots correspond to unfrozen submarine permafrost and marine sediments.
