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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
  • Atoll Facts and Information - Coral Reef Info
    For reef scientists, atolls are broadly defined as large, ring-shaped coral reefs that surround a central lagoon
  • 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
  • Corals Tutorial: How a coral atoll forms - NOAAs National Ocean Service
    When the island completely subsides beneath the water, it leaves a ring of growing coral with an open lagoon in its center, this is called an atoll The process of atoll formation may take as long as 30 million years to occur
  • Geography of Atolls - Geography Realm
    The result is an atoll, a circular or horseshoe-shaped coral reef that encircles a lagoon partially or fully The coral reef and the lagoon together create a unique ecosystem that supports a wide variety of marine life
  • ATOLL Definition Meaning - Merriam-Webster
    The meaning of ATOLL is a coral island consisting of a reef surrounding a lagoon Did you know?
  • What Is an Atoll and How Does It Form? - thedailyECO
    What is an atoll and how does it formed? An atoll is a coral island or a group of various islets that are characterized by being ring-shaped, enclosing an interior lagoon with access to the sea





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