Siliciclastic Shorelines

1 Environments of Terrigenous/Siliciclastic Sedimentation Which Are Not Associated with Mouths of Large Rivers 

Visual definition of terms describing a typical beach profile. (Data from U.S. Army Corps of Engineers. Shore Protection Manual 1,4th edition, U.S. Government Printing Office, Washington, DC, 1984.) 

Chenier plains Chenier plains denote isolated, widely separated, subparallel sandy beach ridges set in areas of extensive coastal fine-grained mudflows and marsh deposits (Fisk, 1955). The most important prerequisite for a chenier plain to form is an abxmdant, and generally fluctuating, supply of fine-grained sediment (Otvos and Price, 1979). When 

Tidal flats— Tide-dominated river mouth illustrating the funnel shape of the lower distributary channel and a zone of intense meandering at the head of the funnel-shaped channel. 

Mat-forming algae that cover the tidal flats, salt-tolerant sea grasses and mangroves that grow in them, and, in certain areas, mussels that attach to the surface of the tidal flats stabilize the peritidal sediments and protect them from erosion (Friedman and Sanders, 1978). 

---

Elliot, T. 1986b. Siliciclastic shorelines. In Sedimentary Environments and Facies, Reading, H.G., ed., Blackwell Scientific Publications, Oxford, pp. 155-188. 

Mississippi Valley-type Intracratonic basins Shallow marine and shoreline carbonate and siliciclastic 75-200 4... 

---