When molten rock pushes its way into rock layers already formed, it creates an intrusion of basalt. The illustration provided shows three rock layers and an intrusion of basalt. The rock strata indicates that the basaltic intrusion must have occurred-

figure to which the question refers, is attached.

The rock strata indicates that the basaltic intrusion must have occurred after the limestone was deposited.

Explanation:

According to the visualization of the figure, we can see that the rock strata indicate that the basaltic intrusion must have occurred after the deposition of the limestone. It is important to note that this intrusion happened with the limestone in liquid form that cooled and solidified after the deposition of the limestone inside the planet's crust.