JWhat principal involves an intrusive rock body younger than the rock into which it intrudes?

the principle of relative dating

the principle of cross-cutting relationships

the principle of uniformitarianism

the principle of original horizontality

1 answer

The principle that involves an intrusive rock body being younger than the rock into which it intrudes is known as the principle of cross-cutting relationships. This principle states that geological features, such as faults or igneous intrusions, that cut through other rocks are younger than the rocks they disrupt.