Volcanoes and Igneous Rocks

Mafic (basaltic) magma.

Shield volcano.

Dark in color due to their high iron and magnesium content.

Volcanoes can form at places where tectonic plates move apart, where they move together, and at hot spots.

A crater-shaped basin formed when a volcano collapses after a large eruption empties the magma chamber.

Mafic magma is primarily composed of iron and magnesium.

Explosive eruptions.

A type of volcano formed from the accumulation of volcanic debris, typically with steep slopes.

Mafic rocks are dark and rich in iron and magnesium, while felsic rocks are light in color and rich in silica.

A volcano characterized by a conical shape and built up by layers of lava and ash.