Figure 3

Log-log plot of permeability and over-pressure derived from equation 3 for a high saline brine at T = 80 °C, μ f = 480 μPas57, ρ s = 2.9 g/cm3, ρ f = 1.26 g/cm3, A = 5∙10−7 mol m−2 s−1 (interpolation of experiments58), and the activation energy for dolomite precipitation E = 31.9 kcal/mol59. The lines indicate the numbers of zebra layers per m that can be related to the spacing of respective bands (images). The grey shaded area indicates the appropriate condition for buried dolomites. The dotted line indicates the maximum value for dolomite permeability46.