GEOLOGY

Detailed explanation-1: -The main way to tell a plutonic rock is that it’s made of tightly packed mineral grains of medium size (1 to 5 mm) or larger, which means that it has phaneritic texture. In addition, the grains are of roughly equal size, meaning that it has an equigranular or granular texture.

Detailed explanation-2: -A plutonic rock is generally coarsely crystalline (phaneritic) and is formed during a massive geologic intrusion of magma. In fact, outcropping (or daylighting) plutonic rocks are geologic features that have been uplifted to the ground surface, long after solidifying underground.

Detailed explanation-3: -Plutonic Rocks Examples The most common rock types in plutons include monzonite, granite, granodiorite, tonalite, and quartz diorite.

Detailed explanation-4: -An ultramafic plutonic rock chiefly composed of pyroxene, with accessory hornblende, biotite, or olivine.