Explore the factors controlling volcanic eruption explosivity in this comprehensive geology video. Delve into the differences between felsic and mafic magmas, examining their silicate content, structure, and resulting crystallization processes. Investigate how volatiles like water and CO2 influence magma viscosity and eruption intensity. Learn about the relationship between magma viscosity, density, and volcanic explosivity. Discover the processes of partial melting, fractional crystallization, magma assimilation, and magmatic mixing. Gain insights into how these factors contribute to the formation of various igneous rocks and the diverse nature of volcanic eruptions on Earth's surface.