Reef is high because of wave-cut platform, wave-cut residual body. As the waves of coastal erosion and destruction of rock constantly, while the wave strength and composition of coastal bedrock lithological composition differences, exacerbated by differences in the role of abrasion, resulting in prominent standing of the reef. Rock above the sea is often covered with sandstone and shells. If the reef's size, claimed that island. Underwater reef that lurks in the reef. Coral reef body composition can also be formed from volcanic rock body or an extension of the mainland on the underwater rock formed. Its distribution in the sea or near the coast, on coastal fisheries and navigation are all negative.
Also known as lagoons, coral lake. Atoll barrier reef in the waters or the waters between the mainland. Flat Duocheng rings or horseshoe-like shape, there are gaps and marine similarities, is a lagoon, calm lake, is an excellent refuge.
Reef-flat at low tide some or all of the exposed reef formed by the death of Kuankuang plains. Reef-flat is characterized by a shallow canyons, shallow groove, pot hole and reef grouper, which are formed from coral debris and coral sand and shell composed of biotechnology.
