Name two principal types of magma

Answer 1

The two principal types of magma are:

1. Basaltic magma: This type of magma is low in silica content (about 50% or less) and is characterized by higher temperatures (around 1000–1200°C) and lower viscosity. It typically leads to the formation of basalt rock and is commonly associated with divergent plate boundaries and hot spots.

2. Rhyolitic magma: This magma has a high silica content (about 70% or more), which gives it a higher viscosity. It forms at lower temperatures (around 800–1000°C) and is often associated with explosive volcanic eruptions. Rhyolitic magma leads to the formation of rhyolite rock and is commonly found in continental crust settings or in areas associated with subduction zones.