正せい断だん層そう

noun

normal fault

A geological fault where the hanging wall moves downward relative to the footwall, typically caused by extensional forces. Contrasts with 逆断層 (reverse fault).

See also: 逆断層

• この地ち域いきには正せい断だん層そうが多おおく見みられる。

  Many normal faults can be seen in this region.

• 正せい断だん層