Question

identify the intrusions in the rock layers.

Explanation:

In rock layer analysis, an intrusion is a body of igneous rock that has crystallized from molten magma beneath the Earth's surface and cuts through pre - existing rock layers. Looking at the diagram, the features labeled \( J \) and \( H \) are intrusions. \( J \) appears to be a pluton (a large - scale intrusion) and \( H \) seems to be a dike (a tabular intrusion that cuts across rock layers).

Answer:

The intrusions in the rock layers are the features labeled \( J \) and \( H \).