No translations for '大地の成り立ち' - No translations for '火山島の時代の岩石'
No translations for 'ジオサイト' / No translations for '隠岐の島町'
The small island you can see offshore is called Kuroshima Island. It is the remains of a volcanic crater that erupted around 3.5 million years ago. The whole island contains systematic, vertical cracks called columnar joints. Mantle xenoliths are also found here.