Fig. 2

(a) Satellite map with detailed orthomosaic overlay of the area of interest, highlighting sample locations and diapir outline. The map was created in QGIS v. 3.10.1 (https://qgis.org/) and the source of the satellite base layer is Esri, Maxar, Earthstar Geographics, and the GIS User Community. (b) Digital outcrop model of the sampled area, showing dissolution notches (red dashed lines) and the sampled layers (numbered L1 to L3). (c) close-up aerial photograph illustrating the dissolution notches (marked with red arrows) and the location of layer 3. (d) photograph of layer 3 sample location and the white crust that is covering the dissolution notch. Note the wood fragment exposed along with the sediments (e.g. Figure 3).