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 …

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 …

Oct 19, 2023 · An atoll is a ring-shaped coral reef, island, or series of islets. The atoll surrounds a body of water called a lagoon.

May 10, 2025 · 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 …

An atoll is a coral reef enclosing a lagoon, characterized by a ring or horseshoe shape. The coral rim may be elliptical or angular, but consistently forms a closed shape.

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.

The meaning of ATOLL is a coral island consisting of a reef surrounding a lagoon. Did you know?

Apr 25, 2017 · An atoll is a ring-shaped coral reef partially or completely surrounding a lagoon and is a common oceanic landform found in many parts of the world.

Aug 12, 2024 · 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 …

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 …