An Underwater Garden
Types of Coral Reefs ..
Fringing reefs are coral reefs that start growing on rocks in shallow waters along the shore. Fringing reefs include the reef crest (the part of the reef that the waves break over), the fore reef, and the buttress zone.
Fringing Reef
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Fringing Reefs are submerged platforms of living coral going from the shore out to the ocean. ...
Barrier reefs are reefs that are separated from the beach by a lagoon. These reefs are large and continuous. The world's largest reef of this kind is the Great Barrier Reef along the northeastern coast of Australia.
Barrier Reef
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Barrier Reefs flow along the shoreline a mile or so from the shore.
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The third type of coral reefs are atolls. An atoll is a circle of coral reef often built on the crater rim of a volcano. There are two types of atolls: deep sea atolls that rise from the deep sea, and those found on the continental shelf. Sometimes they are formed from volcanoes.
Attoll
Atolls are ring-shaped coral islands in the open ocean.
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