24/11/2021 · An atoll is a ring of coral around a shallow body of water called a lagoon. Atolls form when corals build a colony, or reef, around the top of a volcanic island. Eventually, the reef reaches the surface of the water and becomes land. The volcanic island may sink, leaving a lagoon in its place.

An atoll develops from a coral reef that rings a volcanic island. An atoll is a ring-shaped coral reef, island, or series of islets. The atoll surrounds a body of water called a lagoon. Photo: Satellite image of a ring-shaped island with a bright blue central lagoon.

The formation of an atoll is a slow process that can take millions of years. It begins when an underwater volcano erupts, creating a buildup of lava on the seafloor. With continued eruptions, the lava continues to build until it breaks through the ocean’s surface and forms an island. How are atolls formed for kids?

09/06/2021 · How an Atoll is formed - YouTube. This video is on how an Atoll is formed. https://www.instagram.com/amitsengupta01/https://www.facebook.com/amitsengupta01https://www.kooapp.com/profile/amits ...

23/11/2021 · How do atoll formed? The formation of an atoll is a slow process that can take millions of years. It begins when an underwater volcano erupts, creating a buildup of lava on the seafloor. With continued eruptions, the lava continues to build until it breaks through the ocean’s surface and forms an island.

25/03/2015 · Atolls begin as an underwater volcanoes called seamounts. Over time and many eruptions the seamount grows until it rises above the water and becomes an islan...

As the reef expands, the interior island usually begins to subside and the fringing reef turns into a barrier reef. When the island completely subsides beneath the water leaving a ring of growing coral with an open lagoon in its center, it is called an atoll. The process of atoll formation may take as long as 30,000,000 years to occur.

12/02/2010 · An atoll is formed first as a reef that fringes a volcanic island. As the island sinks (after the volcanic activity has ceased and the crust …