Energy commodities - Erosion Thicknesses

For the individual erosion events, the thicknesses to be eroded were determined from the initial thickness of a sequence. These maps were smoothed again, e.g. in the marginal depressions of the salt diapirs to avoid abrupt thickness transitions. The maps of eroded thicknesses were calculated from the maps of initial thickness of the respective sequence. The initial thickness of a sedimentary layer was determined for the Jurassic and Triassic strata by our own estimates from the missing thicknesses in the area of the salt domes and from calibrated 1D models; for the Carboniferous Stefan and Westfal horizons they were taken from Krull (2005). Initial thickness maps for the Carboniferous sediments were created from the printed maps by scanning, georeferencing, digitizing isolines, and interpolating to a contiguous surface. Maps of eroded thicknesses were then calculated in PetroMod modeling software (Schlumberger, version 2012.2). The amount of erosion is calculated by subtracting the residual thickness (today) from the initial thickness. Since in the hydrocarbon model the salt movement was modeled parallel to the erosion events, it was necessary to correct the calculated erosion amounts or maps finally to avoid horizon overlaps and abrupt cell transitions. For this reason, both sets of maps (initial and eroded thicknesses) are available for download. The maps are available in two different data formats (CPS3 and Zmap). The individual thickness maps have a file size of 8.5 MB each (zip files 0.3 to 1.4 MB).