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.
この地域には斜交不整合が観察される。
An angular unconformity is observed in this area.
不整合 is the general term for unconformity; 斜交不整合 specifically refers to angular unconformity, where the underlying strata are tilted relative to the overlying strata.
Compound of 斜交 (oblique intersection) + 不整合 (unconformity). A technical term in geology.