Figure 3
From: Novel microbial assemblages inhabiting crustal fluids within mid-ocean ridge flank subsurface basalt
Class-level taxonomic distributions of archaea and bacteria are distinct between deep subsurface fluid microbial communities and seawater, mixed (seawater and deep subsurface fluid), sediment and control samples. Deep subsurface fluid samples are plotted individually; the taxonomic distribution of other samples is averaged and the s.d. of the mean is indicated. Archaeal sequences in controls were either present in very low (<0.01%) abundance (sample C1) or absent (sample C2) and so are not included.
