"Atoll, a coral reef surrounding a pool of shallow water, usually called a lagoon. The atoll is formed…
"Atolls. A coral island commonly consists of a narrow rim of reef, surrounding a lagoon." -Dana, 1880
"represents a section of an island, from the ocean (o) to the lagoon (l). On the ocean side, from o…
Magna Carta Island is an island in the River Thames in England, on the reach above Bell Weir Lock. It…
"Diagram suggesting the development of a barrier reef and an atoll, successively, from a fringing reef,…