The five main types of volcanic eruptions and their characteristics, depending on the composition and viscosity of the magma ...

What type of magma is rich in silica? More than 63% of silica is present in felsic and silicic magmas. Magmas made up of rhyolite and dacite are among them. These magmas are extremely viscous due to ...

A volcano is an opening in the Earth's crust that allows magma, hot ash and gases to escape. Composite volcanoes are the most common type of volcano. They can have violent eruptions and can grow ...