Creation of Secondary Porosity in Dolostones by Upwelling Basement Water in the Foreland of the Alpine Orogen

Figure 5

(a) Spatial distribution of anhydrite-dissolution pores within the Trigonodus Dolomit of the NE Swiss Molasse Basin (SMB). Depth contours are in m below sea level (BFH: Black Forest Highlands; SGMB: South German Molasse Basin; modified after Müller et al. [15] and Sommaruga et al. [24]). Faults emanating from the basement into the Upper Muschelkalk have been deduced from the GeoMol digital subsurface model (this study). See Figure 1(a) and Table A.1 for well names. (b) Spatial distribution of secondary calcite and saddle dolomite filling pores and fractures.

(a)

(b)