The Australian Shield, also called the Western Australian Shield, is a geological feature known as a shield that occupies more than half of the continent of Australia. The word shield is used because it refers to ancient, molten rock which has cooled and solidified. The Australian Shield has a characteristic depth of 4.5 kilometres (2.8 mi) and an estimated age of 2.8 to 3.5 billion years. In places younger sedimentary rock covers the shield's Precambrian surface.
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| - Australian Shield (en)
- Scudo australiano (it)
- オーストラリア楯状地 (ja)
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| - The Australian Shield, also called the Western Australian Shield, is a geological feature known as a shield that occupies more than half of the continent of Australia. The word shield is used because it refers to ancient, molten rock which has cooled and solidified. The Australian Shield has a characteristic depth of 4.5 kilometres (2.8 mi) and an estimated age of 2.8 to 3.5 billion years. In places younger sedimentary rock covers the shield's Precambrian surface. (en)
- Lo scudo australiano, chiamato anche "scudo dell'Australia Occidentale" e incluso nel Western Plateau, occupa più della metà del continente australiano. Viene definito scudo geologico in quanto costituito da antiche rocce fuse che si sono raffreddate e successivamente solidificate. Lo scudo australiano ha uno spessore che è tipicamente di circa 4.5 km e un'età stimata tra 2,8 e 3,5 miliardi di anni. In alcune zone, rocce sedimentarie più recenti ricoprono la superficie precambriana dello scudo. (it)
- オーストラリア楯状地は、西オーストラリア楯状地またはとも呼ばれ、オーストラリア大陸の半分以上を占めている。楯状地という言葉は、冷えて固まった古代の溶岩を指すために使われる。オーストラリア楯状地の深度は4.5kmで推定年代は28億から35億年前 。より年代の若い堆積岩が楯状地の先カンブリア時代の表面を覆っている。 (ja)
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| - The Australian Shield, also called the Western Australian Shield, is a geological feature known as a shield that occupies more than half of the continent of Australia. The word shield is used because it refers to ancient, molten rock which has cooled and solidified. The Australian Shield has a characteristic depth of 4.5 kilometres (2.8 mi) and an estimated age of 2.8 to 3.5 billion years. In places younger sedimentary rock covers the shield's Precambrian surface. (en)
- Lo scudo australiano, chiamato anche "scudo dell'Australia Occidentale" e incluso nel Western Plateau, occupa più della metà del continente australiano. Viene definito scudo geologico in quanto costituito da antiche rocce fuse che si sono raffreddate e successivamente solidificate. Lo scudo australiano ha uno spessore che è tipicamente di circa 4.5 km e un'età stimata tra 2,8 e 3,5 miliardi di anni. In alcune zone, rocce sedimentarie più recenti ricoprono la superficie precambriana dello scudo. (it)
- オーストラリア楯状地は、西オーストラリア楯状地またはとも呼ばれ、オーストラリア大陸の半分以上を占めている。楯状地という言葉は、冷えて固まった古代の溶岩を指すために使われる。オーストラリア楯状地の深度は4.5kmで推定年代は28億から35億年前 。より年代の若い堆積岩が楯状地の先カンブリア時代の表面を覆っている。 (ja)
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