Question

Which geologic principle states that if rock strata are found folded or faulted, the folding or faulting occurred after they were deposited?


faunal succession

uniformitarianism

original horizontality

cross-cutting relationships



Uniformitarianism does not sound right at all for this, and neither does faunal succession, so I'm stuck between original horizontality and cross-cutting relationships.
It seems to be asking about the original state.
faunal successsion
The answer is original horizontality. I found it on Quizlet.

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