斜しゃ交こう不ふ整せい合ごう

noun

angular unconformity

A geological term referring to an unconformity where the strata below dip at a different angle from the strata above, indicating a period of deformation and erosion before deposition resumed.

• この地ち域いきには斜しゃ交こう不ふ整せい合ごうが観かん察さつされる。

  An angular unconformity is observed in this area.