Schichtvulkane, also known as stratovolcanoes, are a type of volcano characterized by their steep, conical shape. They are formed from alternating layers of lava flows, ash, and volcanic rocks. This layered structure results from explosive eruptions followed by quieter lava flows, creating a complex and often tall profile. These volcanoes typically erupt more violently than other types, such as Schildvulkane (shield volcanoes), due to the thicker, more viscous lava that can trap gases. Famous examples of Schichtvulkane include Mount St. Helens in the United States and Mount Fuji in Japan, both known for their significant eruptions and beautiful, iconic shapes.