Miarolitic cavities, or irregular openings, commonly develop in its plutonic variety during late stages of cyrstallization.
Miarolitic cavities, or irregular openings, commonly develop in its plutonic variety during late stages of cyrstallization. The hypabyssal types of it occur as dikes, sills, and other similar small bodies, and examples include porphyrite and diabase. The plutonic types occur as batholiths, bosses, and veins and include diorite and peridotite. The pyroclastic varieties include breccia and tuff, and are the fragmented explosive products. They can be either intrusive or extrusive and FTP, what class of rocks includes basalt and obsidian as well as many other byproducts of volcanic eruptions?
Miarolitic cavities, or irregular openings, commonly develop in its plutonic variety during late stages of cyrstallization.
{Igneous} rock