Multiple Choice
An unconformity is ________.
A) an erosional (or non-depositional) surface with younger strata above and older rocks below
B) the lower contact of an intrusive sill with sedimentary strata
C) a fault with younger, sedimentary rocks above and older, igneous rocks below
D) the contact between a cross-cutting pluton and sedimentary rocks
Correct Answer:

Verified
Correct Answer:
Verified
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