Research Article

Simulating the Evolution of Fluid Underpressures in the Great Plains, by Incorporation of Tectonic Uplift and Tilting, with a Groundwater Flow Model

Figure 20

Head versus time for Wolfcampian cells in columns 6, 11, and 23 of the 27 Ma model, showing that steady state is reached around 34.5 Ma, after 5.5 million years of simulated time. Head in meters above sea level for Figures 2033.