The particular study area, whether only a part of a basin or an entire basin itself, should be identified on a large-scale geographic map using total sediment thickness as the primary control. We then map major regional structural features. If postdepositional deformation has resulted in erosion, we construct a paleogeographic restoration to approximate the original depositional basin outline (see section D2, Paleogeography).
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The particular study area, whether only a part of a basin or an entire basin itself, should be identified on a large-scale geographic map using total sediment thickness as the primary control. We then map major regional structural features. If postdepositional deformation has resulted in erosion, we construct a paleogeographic restoration to approximate the original depositional basin outline (see [[Paleogeography]]).