An area that is no longer subject to mountain-building and is a relatively stable part of the crust. It refers to Kober's kratogen, and cratons are divided into land masses (hochkraton) in continental regions and ocean masses (tiefkraton) in oceanic regions [Kober: 1923, Stille: 1936, Kimura et al.: 1973]. Due to the recent idea of ocean floor spreading, cratons are limited to continental regions [Aubouin: 1965]. The Greek word kratos means strength or intensity. Source: Asakura Publishing Dictionary of Petrology Information |
もはや造山運動を受けなくなった地帯で,地殻の相対的に安定な部分.コーベルのクラトーゲン(kratogen)のことで,クラトンは大陸地域の陸剛塊(hochkraton)と大洋地域の海洋剛塊(tiefkraton)に分けられる[Kober : 1923, Stille : 1936, 木村ほか : 1973].近年の大洋底の拡大の考えからクラトンは大陸地域に限られる[Aubouin : 1965].ギリシャ語のkratosは強さ,強度の意味. 出典 朝倉書店岩石学辞典について 情報 |
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