magma composition

Magma composition refers to the types and amounts of minerals and elements dissolved within molten rock beneath Earth's surface. It mainly consists of silica (quartz and feldspar), which influences its viscosity or thickness. High-silica magmas are thick and sticky, leading to explosive eruptions, while low-silica magmas are runnier and tend to produce gentler lava flows. Variations in magma composition affect volcanic activity and the types of rocks formed after cooling. Understanding magma composition helps scientists predict eruption behavior and the formation of different volcanic features.