Here's why:
* Dikes are tabular, discordant intrusive bodies that cut across the existing rock layers.
* The magma's pressure forces it into the fractures, causing the rock layers to be displaced.
* Dikes can be vertical, horizontal, or inclined.
* They are often found in groups, forming radiating, parallel, or circular patterns.
Other intrusive features, like sills, are also formed by magma intrusion, but they are concordant, meaning they run parallel to the existing rock layers.
