Fluvial-Dominated Deltas

Fluvial-Dominated Deltas
Fluvially-dominated deltas are primarily controlled by the water density difference between the inflowing river water and the standing water on the basin.
Different flow types that determine the distribution of sedimentand sedimentary structures formed in the delta are homopycnalflow, hyperpycnalflow, and hypopycnalflow
Homopycnalflowoccurs when the density of the river water is equal to the density of the standing water in the basin..
Hyperpycnalflowis produced when the density of the river water entering the basin is greater than the density of the standing water in the ocean basin. This higher density river water will flow below the standing water in the basin because ofthe difference in density.
Hypopycnalflowis associated with a lower river water density entering a higher density standing water in the basin. Under these conditions, the river water will flow out over the standing water, gradually depositing the suspended clay portion of the sediment load on the prodelta.