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List of shields and cratons : ウィキペディア英語版 | List of shields and cratons A craton is an ancient part of the Earth's continental crust which has been more or less stable since Precambrian times. Cratons whose ancient rocks are widely exposed at the surface, often with relatively subdued relief, are known as shields. If the ancient rocks are largely overlain by a cover of younger rocks then the 'hidden' craton may be referred to as a platform. ==List of shields==
*Western Ethiopian Shield *Amazonian Shield of central South America * *Guyana Shield * *Guaporé or Central Brazilian Shield *The Angaran Shield of West Siberia *Arabian-Nubian Shield *(Western) Australian Shield *Baltic Shield of Scandinavia and Eastern Europe *Canadian Shield a.k.a. Laurentian Shield *The China-Korean Shield containing the North China Craton *The East Antarctic Shield containing the East Antarctic Craton *Guiana Shield *Indian Shield *Man Shield
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「List of shields and cratons」の詳細全文を読む
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