Reference work entry
A barrier (coastal barrier) is an elongated coastal ridge of deposited sediment built up by wave action above high tide level offshore or across the mouths of inlets or embayments.
Types of Barriers
A coastal barrier is usually backed by a lagoon or swamp, which separates it from the mainland or from earlier barriers. A barrier, thus defined, is distinct from a bar, which is submerged at least at high tide (Shepard 1952), and from reefs of biogenic origin (see Coral Reefs). Most barriers consist of sand, but some contain gravel as well as sand, and others consist entirely of gravel (shingle: see Gravel Barriers); marine shells (mainly mollusks) are major constituents of the Arabat barrier on the west coast of the Sea of Azov. Chesil Beach, on the south coast of England (Fig. 1), is a well-known shingle barrier, and similar features are seen on the southeast coast of Iceland and on the east and south coasts of South Island, New Zealand. Commonly the gravel has been derived...
- Bird ECF (1973) Australian coastal barriers. In: Schwartz ML (ed) Barrier islands. Dowden, Hutchinson & Ross, Stroudsburg, pp 410–426Google Scholar
- Bird ECF, Clayton KM, Hansom JD (2003) Beaches, spits, barriers and dunes. In: May V, Hansom J (eds) Coastal geomorphology of Great Britain. Joint Nature Conservation Council, Peterborough, pp 203–227Google Scholar
- Leontyev OK, Nikiforov LG (1965) Reasons for the world-wide occurrence of barrier beaches. Oceanology 5:61–67Google Scholar
- Schwartz ML (ed) (1973) Barrier islands. Dowden, Hutchinson & Ross, StroudsburgGoogle Scholar
- Shepard FP (1952) Revised nomenclature for coastal depositional features. Am Assoc Pet Geol 36:1902–1912Google Scholar
- Thom BG (1984) Sand barriers of eastern Australia: Gippsland – a case study. In: Thom BG (ed) Coastal geomorphology in Australia. Academic Press, Sydney, pp 233–261Google Scholar
- Van Straaten LMJU (1965) Coastal barrier deposits in south and north Holland. Meded Geol Stichting 17:41–87Google Scholar
- Zenkovich VP (1967) Processes of coastal development (trans: Fry OG, Steers JA ed). Oliver and Boyd, EdinburghGoogle Scholar
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