The schematic cross section and pressure-depth plot in [[:file:formation-fluid-pressure-and-its-application_fig5-22.png|Figure 1]] shows how changes in the fluid pressure gradient correlate with the top and bottom seals of a regional pressure compartment in a foreland basin. | The schematic cross section and pressure-depth plot in [[:file:formation-fluid-pressure-and-its-application_fig5-22.png|Figure 1]] shows how changes in the fluid pressure gradient correlate with the top and bottom seals of a regional pressure compartment in a foreland basin. |