|Trinity Movie Examples - Western Canada Unconformity|
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Trinity has built in tools that allow users to account for geological history correctly, including restoration of paleo-bathymetry and missing thickness. In this example, the correct variation of the erosion amount is key to make sure the geometry of the deeper horizons was correct through time.
The Alberta basin has undergone uplift and erosion since Paleocene. The white diagonally hatched pattern on the paleo-cross section is restored erosion amount. Eroded thickness for each formation varies across the area due to the rugged topography. Partitioning of the total eroded thickness into each of the formations are required to restore burial depths at each geological period correctly.
Very often, modelers assume a constant erosion amount over the area or take erosion estimates from few wells and grid them into maps. These methods typically produce incorrect subsurface geometry which will result in incorrect paleo-structure and migration patterns. Compare the picture below with the movie at 50 Ma.
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