Supplementary Figure 10 | Widespread outcrops of carbonates in Nili Fossae with low 2.3/2.5 µm band depth ratios. (a) Ratio of the 2.3 and 2.5 µm absorptions (D2300/BD2500_2) in CRISM pixels of images FRT000028BA, FRT00009D96, FRT0000C256, and FRT000095FE with BD2500_2 \(\geq\) 0.005. The combined extent of all four CRISM images is shown as a black outline. This shows an even more widespread distribution of carbonates with similar 2.3/2.5 µm band depth ratios as are found in the Jezero crater margin fractured unit. All pixels shown here are associated with the ROB unit. (b-d) Enlarged views of boxes shown in (a).