上うわ盤ばん

noun

hanging wall

Geological term for the block of rock above a fault plane. Often contrasted with 下盤 (footwall).

See also: 下盤

• 断だん層そうの上うわ盤ばんがずれ動うごいた。

  The hanging wall of the fault slipped.

• 上うわ盤ばんと下した盤ばんの関かん係けいを調しらべる。

  Investigate the relationship between the hanging wall and the footwall.