plutonic rock
Noun
Meaning
large mass of intrusive igneous rock believed to have solidified deep within the earth
Source: WordNetSynonyms
Hypernyms
Hyponyms
Examples
Quartz grains evolve from plutonic rock, which are felsic in origin and also from older sandstones that have been recycled.
Surface expression and erosion A batholith is an exposed area of (mostly) continuous plutonic rock that covers an area larger than 100 square kilometers (40 square miles).