The boundary formed between new intrusive igneous rock and the host rock around it is called a
A) dike.
B) contact.
C) sill.
D) laccolith.

Question

Quizplus · Accepted Answer

The boundary or zone of contact formed between an intrusive igneous rock and the surrounding host rock is referred to as the contact. This term is commonly used to describe the interface between a pluton and the host rock, but it can also be applied to other types of igneous intrusions like dikes, sills or laccoliths. However, out of the given options, only the contact make sense as the correct answer.

The Boundary Formed Between New Intrusive Igneous Rock and the Host