______ are fragments of country rock that are distinct from the body of igneous rocks in which they are enclosed.
A) Clasts
B) Chill zones
C) Phenocrysts
D) Xenoliths
E) Necks

Question

Quizplus · Accepted Answer

Xenoliths are fragments of country rock that are distinct from the body of igneous rocks in which they are enclosed. Clasts are fragments within sedimentary rocks, chill zones refer to the rapid quenching of magma near the margins of an intrusion, phenocrysts are large crystals that are surrounded by finer-grained material in an igneous rock, and necks are cylindrical or columnar masses of solidified magma that fill a volcanic vent.

______ Are Fragments of Country Rock That Are Distinct from the Body