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Fig. 6 | Progress in Earth and Planetary Science

Fig. 6

From: Geophysical constraints on microbial biomass in subseafloor sediments and coal seams down to 2.5 km off Shimokita Peninsula, Japan

Fig. 6

Relationship between cell density and in-situ physical properties and their semi-empirical curves: a in-situ porosity and b in-situ permeability. Cell concentrations at depths closest to the depths where physical properties were measured (0.79 ± 0.68 m and 0.89 ± 0.68 m apart for (a) and (b), respectively). Gray shading indicates cell concentrations below the minimum quantification limit. Fits estimated by the least squares method using in-situ values and the errors are also shown. The initial porosity data is modified from Inagaki et al. (2012). Φ: porosity, ρcell: cell density (cells/cm3), and k: permeability (m2)

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