What must be true of a rock unit has an inclusion?
A) The rock unit is the same age as the inclusion.
B) The rock unit is younger than the inclusion.
C) The rock unit is older than the inclusion.

Question

Quizplus · Accepted Answer

The principle of inclusions states that the rock unit containing the inclusion must be younger than the inclusion itself, as the inclusion must have existed before being incorporated into the rock unit.

What Must Be True of a Rock Unit Has an Inclusion