3) How does the law of crosscutting explain the age of a fault?

Question

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The fault is younger than the rocks above it.
The fault is younger than the rocks it cuts through.
The fault is older than the rocks above it.
The fault is older than the rocks it cuts through.

Answer 1

The law of crosscutting states that any feature that cuts across or disrupts another feature is younger than the feature it cuts through. Therefore, if a fault is cutting through rocks, the fault must be younger than those rocks. Thus, the correct statement would be "The fault is younger than the rocks it cuts through."