Delta Depoists
FRESH WATER DELTA
- Equal densities between inflow and basin
- Rapid deposition of inflowing sediment
- Distance of deposition deponds on velocity of flow
- Beds dip at 15°-25°
- Results in steep downstream accretionary surfaces
- Coarsening upward sequence
MARINE WATER DELTA
- Inflow of fresh water will be less dense than the marine waters (lower salinity)
- Outflow occurs in a buoyant plume
- Deposition may occur over large distances
- Beds will dip at most 10° but usually less than 5°
- Soft sediment deformation
