Which type of unconformity has sedimentary rocks both above and below the unconformity surface?

Question

Quizplus · Accepted Answer

Both angular unconformities and disconformities involve sedimentary rocks above and below the unconformity. Angular unconformities occur where tilted or folded sedimentary rocks are overlain by younger, more flat-lying strata. Disconformities occur between parallel layers of sedimentary rock but indicate a period of erosion or non-deposition.

Which Type of Unconformity Has Sedimentary Rocks Both Above and Below