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The Seychelles is a small island nation located in the Indian Ocean northeast of Madagascar and about east of Kenya. Seychelles lies between approximately 4ºS and 10ºS and 46ºE and 54ºE. The nation is an archipelago of 155 tropical islands, some granite and some coral. the majority of which are small and uninhabited. The landmass is only 459 km2, but the islands are spread over an Exclusive Economic Zone of 1,374,000 km2. About 90 percent of the population of 90,000 live on Mahé, 9 percent on Praslin and La Digue. Around a third of the land area is the island of Mahé and a further third the atoll of Aldabra. There are two distinct regions, the granitic islands, the world's only oceanic islands of granitic rock and the coralline outer islands. The granite islands are the world’s oldest ocean islands, while the outer islands are mainly very young, though the Aldabra group and St Pierre (Farquhar Group) are unusual, raised coral islands that have emerged and submerged several times during their long history, the most recent submergence dating from about 125,000 years ago. ==Inner Islands== The Inner Islands is the collective term for 45 islands with a total area of 247.2 km2, 54% of the Seychelles area but with more than 99% of the population. The Granitic Group consists of 45 granite islands, all within a radius of the main island of Mahé. These islands are rocky, and most have a narrow coastal strip and a central range of hills rising as high as . The most important islands of this group are: *Mahé is the largest island, with a size of . Victoria, the capital, is on Mahé. *Praslin Island, *Silhouette Island, *La Digue. Two coralline islands, at 90 km to the north, make up the remainder of the Inner Islands: *Bird Island *Denis Island Millions of years ago, the archipelago was created by a combination of the separation of India from Africa as well as undersea volcanoes similar to those from which Mauritius and Réunion were created. Subsequently the vast majority of this huge land area became submerged over time. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Geography of Seychelles」の詳細全文を読む スポンサード リンク
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