Pseudo-atoll Pseudo-atoll A pseudo-atoll, like an atoll, is an island that encircles a lagoon, either partially or completely. A pseudo-atoll differs from an atoll as established by several authorities, such as how it is formed (not by subsidence, nor by coral). It is considered a preferable term to "near-atoll". There is a need for rigorous definition of "pseudo-atoll" before it can be accepted as a general term. Alexander Agassiz gave the term pseudo-atoll to "any ring-shaped reefs not formed as a result of subsidence". while Norman D. Newell and J. Keith Rigby called such reefs non-coral. and "We conclude that almost-atoll
Falkie Atoll Falkie Atoll Falkie Atoll is a small atoll within the nation of Solomon Islands, at . It is sometimes referred to as Van Ren Atoll, named after the Dutch explorer Jale Van Ren who discovered the atoll in 1679. Local name of this atoll is Kaka. Administratively, Falkie Atoll belongs to the Choiseul Province of Solomon Islands. It is the westernmost atoll in the Solomon Islands archipelago, 40 km northwest of Shortland Islands. However, the closest land is Bougainville, which is an autonomous region of Papua New Guinea. Its total land area is , but it encloses a lagoon of