definition of atoll in geology - EAS

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  1. Circular reef

    Geology Dictionary - Terms Started With Alphabet A Term : atoll Definition : A circular reef that encloses a relatively shallow lagoon and extends from a very great depth to the sea surface. An atoll forms when an oceanic island ringed by a barrier reef sinks below sea level.
    www.alcwin.org/Dictionary_Of_Geology_Description-207-A.htm
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    What is the difference between an island and an atoll?
    is that atoll is a type of island consisting of a ribbon reef that nearly or entirely surrounds a lagoon and supports, in most cases, one to many islets on the reef platform atolls have a unique geology, so not all islands with a reef and a lagoon are atolls while island is a contiguous area of land, smaller than a …
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    What is an atoll and how is it formed?

    What are the four stages of forming an atoll?

    • Oceanic volcano forms and emerges from the sea surface- forms an island and becomes colonized by reef-building corals.
    • Forms a fringing barrier reef around the island, island begins to sink.
    • Island continues to sink, a barrier reef is formed with a lagoon between the reef and island.
    lisbdnet.com/what-is-an-atoll-and-how-is-it-formed/
    How to use "Atoll" in a sentence?
    Sentences. Besides the atolls there is a type of island which has been called the elevated coral island. 4. 2. Addu Atoll is the furthest south of all the Maldivian atolls and is itself made up of over 30 islands. 2. 0. Tetuaroa and Tubai, besides the three western Leeward Isles, are coral atolls. 1.
    www.wordhippo.com/what-is/sentences-with-the-word/at…
    Which statements defines the term Atoll?
    A type of island consisting of a ribbon reef that nearly or entirely surrounds a lagoon and supports, in most cases, one to many islets on the reef platform. Atolls have a unique geology, so not all islands with a reef and a lagoon are atolls.
  3. https://www.nationalgeographic.org/encyclopedia/atoll

    WebMay 20, 2022 · An atoll is a ring-shaped coral reef, island, or series of islets. An atoll surrounds a body of water called a lagoon. Sometimes, …

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    • Atoll Definition & Meaning - Merriam-Webster

      https://www.merriam-webster.com/dictionary/atoll

      Webatoll noun ˈa-ˌtȯl -ˌtäl, -ˌtōl, ˈā- : a coral island consisting of a reef surrounding a lagoon Illustration of atoll Did you know? If you are lucky enough to sail south and west of Sri Lanka in the Indian Ocean, you'll find …

      What is an atoll for kids?
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    • https://en.wikipedia.org/wiki/Atoll

      An atoll is a ring-shaped island, including a coral rim that encircles a lagoon partially or completely. There may be coral islands or cays on the rim. Atolls are located in warm tropical or subtropical oceans and seas where corals can grow. Most of the approximately 440 atolls in the world are in the Pacific Ocean.
      Two different, well-cited models, the subsidence and antecedent karst models…

    • https://www.britannica.com/science/atoll

      WebJul 20, 1998 · Read a brief summary of this topic. atoll, coral reef enclosing a lagoon. Atolls consist of ribbons of reef that may not always be

    • https://www.worldatlas.com/articles/what-is-an-atoll.html
      • The development of an atoll starts with an eruption of an underwater volcano known as a seamount. When this volcano erupts, it spills lava on the floor of the sea. As it continues to erupt, the seamount increases in elevation and finally breaks to the surface of the water. The top of this volcano is what is known as the oceanic island. The next sta...
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    • https://www.dictionary.com/browse/atoll

      WebA coral island or series of coral islands forming a ring that nearly or entirely encloses a shallow lagoon. Atolls are surrounded by deep ocean water and range in diameter …

    • https://www.definitions.net/definition/Atoll

      Webatoll noun. A type of island consisting of a ribbon reef that nearly or entirely surrounds a lagoon and supports, in most cases, one to many islets on the reef platform.

    • Atoll Definition Geology

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      WebJun 01, 2022 · The definition of an atoll is a ring shaped coral reef or close coral islands that enclose or almost enclose a lagoon. Atoll Definition Facts Britannica . Atoll lagoons …

    • https://www.ldoceonline.com/Geology-topic/atoll

      Webatoll in Geology topic. From Longman Dictionary of Contemporary English at‧oll /ˈætɒl $ ˈætɒːl, ˈætɑːl/ noun [ countable] a coral island in the shape of a ring Examples from

    • Atoll Definition Geology - 642stevenjonestrending.blogspot.com

      https://642stevenjonestrending.blogspot.com/2022/...

      WebMay 31, 2022 · The way in which parts are arranged or put together to form a whole. Most of the approximately 440 atolls. Atoll Development U S Geologica...

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