中なか石いし

noun

horse; block of rock separated from surrounding rock

Geological term for a block of rock completely detached from the surrounding rock by mineral veins or fault planes. The gloss 'horse' is a direct translation of the Japanese term 中石, but the explanatory gloss is clearer for learners.

• この鉱こう山ざんでは、中なか石いしが頻ひん繁ぱんに見みつかる。

  In this mine, horses are frequently found.

• 断だん層そうによって周しゅう囲いの岩いわから完かん全ぜんに分ぶん離りした中なか石いしが観かん察さつされた。

  A horse completely separated from the surrounding rock by a fault was observed.