Question

Magma that squeezes into a horizontal crack is called a _____. Magma that squeezes into a vertical crack is called a _____.

Answer 1

Magma that squeezes into a horizontal crack is called a sill. Magma that squeezes into a vertical crack is called a dike.

They are both considered volcanic rocks that form into layers of another rock. In nature, the difference is that sills are horizontal while dikes are vertical.