In the Latham Bar Trend, just to the northeast of the mapped area, Al-Raisi et al. They also found that the northeasterly faults compartmentalize the Terry Sandstone into a number of fault blocks. Within any fault block, normalized GOR values for individual wells increase up the structure, suggesting that each block is mutually isolated. However, it is worth noting that not all small faults mapped from well control were visible from the 3D survey.
Local variations are a result of faulting and folding in the area.
It has not been possible to determine the amount of lateral offset on these faults, but where faults cut the Terry Sandstone at wells, vertical offset is on the order of 10-160ft. Repeat sections were not identified, indicating the vertical component of faulting is normal. These faults developed over pre-existing basement shear zones that were reactivated during the Laramide Orogeny. The compressive forces that uplifted the Rockies were translated into lateral slip in the Denver Basin. Considering compressive stress directions, the fault patterns mapped in Figure 3 are reasonable.