TYPES OF SHELF-MARGIN CLINOFORM AND THEIR ROLE IN BASIN FILLING
These three clinoform types often form a clinoform set, developed during a cycle in which sandy shorelines regress to the pre-existing shelf edge, deliver sediment into deepwater, then transgress back across the shelf. This typically results in the sand budget being partitioned mainly into shelf and basin-floor segments. Another type of clinoform set is dominated by stacked Type 2 clinoforms (showing little or no fluvial incision at the shelf edge and no basin-floor sands). This resulted in sand partitioning mainly into the shelf and into substantial wedges on the slope.
Successive clinoform sets cause the shelf margin to prograde and aggrade. Sets dominated by Type 1 clinoforms produce a low-angle shelf-edge trajectory, whereas sets without Type 1 clinoforms have a more steep, aggrading trajectory. The basin fills by the irregular accretion of the shelf margin, aggradation of the coastal plain, and aggradation of the basin floor.