Igneous Rock Formation Diagram: Extrusive vs Intrusive Processes #141808 (License: Personal Use)

The diagram depicts magma rising from a deep magma chamber, with pathways forming dikes, sills, and plutons. Surface eruptions produce extrusive igneous rocks like lava flows and ash deposits with fine crystals due to rapid cooling, while subsurface intrusions such as batholiths and laccoliths cool slowly, allowing large crystals to grow. Labels highlight key features including volcano, parasite cone, and xenoliths.

Used in geology education, textbooks, and science websites to explain rock classification by origin and texture; matches user intent for learning about igneous processes, mineral crystallization, or earth science fundamentals.