地ち溝こう

noun

rift valley

Geological term for a valley formed by the subsidence of land between faults.

• 東ひがしアフリカの大だい地ち溝こう帯たいは有ゆう名めいな地ち溝こうの例れいです。

  The Great Rift Valley in East Africa is a famous example of a rift valley.