Sediments are deposited via distal fluvial, lacustrine, deltaic, and marine depositional systems. Jacobsville Sandstone originated in fluvial, lacustrine, and deltaic environments. It accumulated in a variety of fluvial, deltaic, tidal, nearshore marine, and offshore marine environments. Finally there is the modern rift unit of fluvial, glacial, and deltaic sediments. Tidal freshwater marshes are further divided into deltaic and fringing types. The Stenkul Fiord site represents a series of deltaic swamp and floodplain forests. In the Early Cretaceous, Northern Africa was covered with deltaic and brackish environments. They were dominantly deposited in a deltaic to shallow marine environment. The deltaic plain and dune flats comprise medium, grey brown sands. The monasteries were built on rock cliffs in the deltaic plains of Meteora. Components of deltaic and shallow marine reservoirs are very well preserved in the Book Cliffs. Tenali is situated at , on the southern deltaic region of Krishna river. It is the largest of the northern deltaic lakes of Egypt. Thereafter, except for deltaic patches at Susa and Derna, the shore is all precipitous. The river enters a plain at Anandapur and creates a deltaic zone at Akhuapada.