chenier A beach ridge or sandy, linear mound that is built on a marsh area. It is at least 150 m broad, up to 3 m high, and up to 50 km long, and is typical of the Gulf Coast of America. A chenier is formed by the reworking of river-derived materials by waves. There are usually muddy, marshy zones to the front and rear of the chenier.

chenier Beach ridge, or sandy, linear mound that is built on a marsh area. It is at least 150 m broad, up to 3 m high, and up to 50 km long, and is typical of the Gulf Coast of America. A chenier is formed by the reworking of river-derived materials by waves. There are usually muddy, marshy zones to the front and rear of the chenier.