Unconformities represent a long period during when deposition ceased, erosion removed previously formed rocks and then deposition resumed (represents a gap in geologic time).
(Unconformities; represent; a long period during) (deposition; ceased; ) (erosion; removed; previously formed rocks) (deposition; resumed; T:then)
Unconformities deposition erosion deposition
represent ceased removed resumed
a long period during
previously formed rocks
T:then