Shingle beach

A shingle beach (also referred to as rocky beach or pebble beach) is a beach which is armoured with pebbles or small- to medium-sized cobbles (as opposed to fine sand). Typically, the stone composition may grade from characteristic sizes ranging from 2 to 200 millimetres (0.1 to 7.9 in) diameter.

Shingle beach at Torrisdale Bay, Argyll and Bute, Scotland
A shingle beach in Batanes, Philippines
Pebbles on a shingle beach in Somerset, England

While this beach landform is most commonly found in Europe, examples are found in Bahrain, North America and in a number of other world regions, such as the east coast of New Zealand's South Island, where they are associated with the shingle fans of braided rivers. Though created at shorelines, post-glacial rebound can raise shingle beaches as high as 200 metres (660 ft) above sea level, at the High Coast in Sweden.

The ecosystems formed by this unique association of rock and sand allow colonization by a variety of rare and endangered species.[1]

Formation

Shingle beaches are typically steep, because the waves easily flow through the coarse, porous surface of the beach, decreasing the effect of backwash erosion and increasing the formation of sediment into a steeply sloping beach.[2]

Tourism

Shingle beaches are often criticized as undesirable for visitors. Canterbury City Council notes that the nearby shingle beach at Whitstable is uncomfortable to walk and lie on.[3] One advertiser doctored an image of a shingle beach with sand in promotional material.[4] However, shingle beaches are popular among rock collectors for the varying rock types that can be found.

Examples
  • Alby, Sweden
  • Birdling's Flat, New Zealand
  • Chesil Beach, England
  • Dungeness, England

Egypt Beach, United States

gollark: +>wm combine dodecamessages tetramessages
gollark: +>wm inv
gollark: Weren't YOU to implement wordmarket, æpio?
gollark: +>wm apioformicite
gollark: Of course, *cool* administrators disable this and use keys only.

See also

References
  1. UK's rare shingle beaches at risk, Alex Kirby, BBC News Online, June 3, 2003
  2. Easterbrook, Don J. Surface Processes and Landforms. 1999 Prentice-Hall Inc. Upper Saddle River, NJ
  3. "Archived copy". Archived from the original on 2011-01-24. Retrieved 2011-06-07.CS1 maint: archived copy as title (link)
  4. "Sandy shore replaces pebbles on the beach". Eastbourne Herald. 6 June 2011. Retrieved 13 November 2016.

Further reading
  • Chapman, V. J. (2016) Coastal Vegetation chapter 9: Shingle Beaches. Second edition, Elsevier. ISBN 9781483279589
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.