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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
- 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 - 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
- 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 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
- 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
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