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The atoll of Tetiʻaroa in French Polynesia. An atoll (/ ˈ æ t. ɒ l,-ɔː l,-oʊ l, ə ˈ t ɒ l,-ˈ t ɔː l,-ˈ t oʊ l /) [1] is a ring-shaped island, including a coral rim that encircles a lagoon. There may be coral islands or cays on the rim. [2] [3] Atolls are located in warm tropical or subtropical parts of the oceans and seas where ...
As a consequence of the specific topographic characteristics of Fongafale, unlike other atoll islands of a similar size, Fongafale does not have a thick freshwater lens. [10] The narrow fresh water and brackish water sheets in the sub-surface of Fongafale islet results in the taro swamps and the fresh groundwater resources of the islet being ...
Canton Island typifies the isolated coral atolls dotting the Pacific Ocean. The Structure and Distribution of Coral Reefs, Being the first part of the geology of the voyage of the Beagle, under the command of Capt. Fitzroy, R.N. during the years 1832 to 1836, was published in 1842 as Charles Darwin's first monograph, and set out his theory of the formation of coral reefs and atolls.
Alphonse lies just two kilometres (1.2 miles) north of St. François Atoll, separated from it by a deep channel. The atoll has just one island, Alphonse Island, with a population of 108 people who work in the Alphonse hotel or maintain the runway and island for the IDC. The area of the island is 1.71 square kilometres (0.66 square miles).
The umbrella term Pacific Islands has taken on several meanings. [1] Sometimes it is used to refer only to the islands defined as lying within Oceania. [2] [3] [4] At other times, it is used to refer to the islands of the Pacific Ocean that were previously colonized by the British, French, Spaniards, Portuguese, Dutch, or Japanese, or by the United States.
Raised coral atoll This page was last edited on 30 November 2020, at 02:37 (UTC). Text is available under the Creative Commons Attribution ...
Bikini Atoll (/ ˈ b ɪ k ɪ ˌ n iː / or / b ɪ ˈ k iː n i /; Marshallese: Pikinni, [pʲiɡinnʲi], lit. ' coconut place '), [2] known as Eschscholtz Atoll between the 19th century and 1946, [3] is a coral reef in the Marshall Islands consisting of 23 islands surrounding a 229.4-square-mile (594.1 km 2) central lagoon.
There are two types of lagoons, coastal and oceanic/atoll lagoons. [19] A coastal lagoon is, as the definition above, simply a body of water that is separated from the ocean by a barrier. An atoll lagoon is a circular coral reef or several coral islands that surround a lagoon. Atoll lagoons are often much deeper than coastal lagoons. [20]