Question

multiple choice question which principle states that an intrusion is younger than the rock it cuts across? original horizontality principle of inclusions cross - cutting relationships superposition

Explanation:

The principle of cross - cutting relationships states that a geologic feature that cuts across another is younger than the feature it cuts. For example, an igneous intrusion that cuts across pre - existing rock layers is younger than those rock layers. The principle of original horizontality states that sedimentary layers are originally deposited horizontally. The principle of inclusions states that if rock A contains inclusions of rock B, then rock B is older. The principle of superposition states that in an undisturbed sequence of sedimentary rocks, the oldest layers are at the bottom and the youngest are at the top.

Answer:

C. cross - cutting relationships