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'
This rhyolite was formed by lava around 5.5 million years ago, and has a characteristic flow-like striped pattern.
Rhyolitic lava is highly viscous and does not flow well; this keeps the different components in the lava from mixing as it spreads, resulting in this striped pattern.
