1. plutonic - Adjective
2. plutonic - Adjective Satellite
Of or pertaining to Pluto; Plutonian; hence, pertaining to the interior of the earth; subterranean.
Of, pertaining to, or designating, the system of the Plutonists; igneous; as, the Plutonic theory.
Source: Webster's dictionaryQuartz grains evolve from plutonic rock, which are felsic in origin and also from older sandstones that have been recycled. Source: Internet
Geology Rhyolite can be considered as the extrusive equivalent to the plutonic granite rock, and consequently, outcrops of rhyolite may bear a resemblance to granite. Source: Internet
Leucite is very rare in plutonic masses; many minerals have special peculiarities in microscopic character according to whether they crystallized in depth or near the surface, e.g., hypersthene, orthoclase, quartz. Source: Internet
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). Source: Internet
Plutonic and metamorphic rocks are made of relatively large crystals of different minerals with different physical properties, and every mineral expands with the temperature at different rates. Source: Internet