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atoll    音标拼音: ['ætɑl]
n. 环状珊瑚岛,环礁

环状珊瑚岛,环礁

atoll
n 1: an island consisting of a circular coral reef surrounding a
lagoon

Atoll \A*toll"\, n. [The native name in the Indian Ocean.]
A coral island or islands, consisting of a belt of coral
reef, partly submerged, surrounding a central lagoon or
depression; a lagoon island.
[1913 Webster]

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  • Atoll - Wikipedia
    An atoll ( ˈæt ɒl, - ɔːl, - oʊl, əˈtɒl, - ˈtɔːl, - ˈtoʊl ) [1] is a ring-shaped island, including a coral rim that encircles a lagoon There may be coral islands or cays on the rim [2][3] Atolls are located in warm tropical or subtropical parts of the oceans and seas where corals can develop
  • Atoll | Definition Facts | Britannica
    atoll, coral reef enclosing a lagoon Atolls consist of ribbons of reef that may not always be circular but whose broad configuration is a closed shape up to dozens of kilometres across, enclosing a lagoon that may be approximately 50 metres (160 feet) deep or more
  • How Atolls Form and Why They’re Disappearing - ScienceInsights
    An atoll is a ring-shaped coral reef structure that develops in warm, tropical oceanic waters, typically far from continental landmasses This formation encircles a body of water, known as a lagoon, which is often connected to the open sea by channels
  • 10 Most Captivating Atolls in the World (+Photos) - Touropia
    An atoll is a ring of coral that originally grew completely around the shoreline of an island, and which continued to grow upward on top of itself as the island subsided or eroded away
  • Atoll - National Geographic Society
    An atoll is a ring-shaped coral reef, island, or series of islets The atoll surrounds a body of water called a lagoon
  • What Is an Atoll? Formation, Features Marine Life
    An atoll stands as one of Earth’s most remarkable natural formations—a ring-shaped coral reef encircling a lagoon where once stood a volcanic island These living geological wonders represent the resilience and adaptability of coral ecosystems over vast stretches of geologic time
  • Atoll Facts and Information - Coral Reef Info
    Atoll Facts and Information For reef scientists, atolls are broadly defined as large, ring-shaped coral reefs that surround a central lagoon
  • ATOLL Definition Meaning - Merriam-Webster
    Many islands in that independent nation demonstrate the archetypal atoll, and geographers often use them to point out the characteristic features of such coral islands
  • What Is an Atoll? Definition, Formation, and Location
    An atoll is a unique island formation emerging from the deep ocean floor These formations are ring-shaped coral reefs that partially or completely enclose a body of water
  • What Is An Atoll? - WorldAtlas
    An atoll is a type of coral reef with a coral rim that partially or completely surrounds a water body known as a lagoon It is usually formed from a fringing reef around a volcanic island





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