Figure 14.2

A stratovolcano: Mount Fuji. (A) The interior structure of a stratovolcano consists of a central vent, surrounded by alternating layers of lava flows and pyroclasts. The solidified lava holds the pyroclastic material together, allowing stratovolcanoes to develop steep slopes. Magma travels up from the reservoir (magma chamber) beneath the volcano through the vent, and to the summit crater. (B) Mount Fuji, an active stratovolcano, has a symmetrical conical profile typical of stratovolcanoes. It reaches a height of 3,775 m (12,387 ft).