断だん層そう粘ねん土ど

noun

fault gouge; fault clay

Geological term for fine-grained, clay-rich material formed by grinding along a fault plane.

• 断だん層そう粘ねん土どは、断だん層そう運うん動どうによって岩がん石せきが粉ふん砕さいされて生しょうじる。

  Fault gouge is produced by the crushing of rocks due to fault movement.