Basin growth and filling model. The basin growth model assumes that the length of the border fault increases as the displacement on the fault increases. Therefore, the rift basin increases in depth, length, and width through time, causing the incremental basin capacity (accommodation space) to increase through time. The basin-filling model assumes a constant supply of sediment and water through time. The model is shown in five stages. For each stage, a map view and longitudinal cross section are shown. Stages 1-3 also show a transverse cross section. The dashed line is the lake surface, when present. The model predicts initial fluvial sedimentation (Stages 1 and 2), followed by shallow-water (Stage 3) then deep-water (Stage 4) and then shallow-water (Stage 5) lacustrine sedimentation. Basin growth and filling result in onlap of synrift units onto prerift rocks. Modified from Schlische and Anders (1996).