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. 2021 Oct 12;6(42):28072–28083. doi: 10.1021/acsomega.1c04147

Figure 1.

Figure 1

Surface maps of heterogeneous sandstone substrates at different supersaturations (Ω) and elapsed times from the onset of the experiment (t) for the laboratory tests conducted at temperature T = 60 °C. Top: Ω = 15 (a–c), middle: Ω = 50 (d–f), and bottom: 130 (g–i).The mosaic maps demonstrate the superimposed EDS on top of the BSE SEM to identify calcium carbonate crystals (color-coded in green). Each mosaic map consists of nine BSE SEM images (3 × 3) covering approximately 10.5 mm2, with a spatial resolution of 1 μm. Magnification: 100×.