The principle that can be used to determine the relative age of an igneous intrusion called a dike is the principle of
A)crosscutting relations.
B)superposition.
C)original horizontality.
D)unconformities.

Question

Quizplus · Accepted Answer

The principle of crosscutting relations states that any geologic feature that cuts across another feature must be younger than the feature it cuts. In the case of a dike, it is intruding into existing rock layers, cutting across them and therefore must be younger than the rock layers it is cutting across.

The Principle That Can Be Used to Determine the Relative