In the Stratigraphic Sequence of the Grand Canyon,depicted Below,the Contact

Multiple Choice

In the stratigraphic sequence of the Grand Canyon,depicted below,the contact between the Muav Limestone and the overlying Redwall Limestone spans two missing periods of geologic time.The contact between these two stratigraphic units represents a(n)

A) disconformity.
B) nonconformity.
C) angular unconformity.
D) a conformable depositional contact.