The volcano Izalco in El Salvador is a small, steep-sided volcano. What conclusions can be drawn about the characteristics of the lava that formed this volcano?
Izalco is likely a stratovolcano, given its steep slopes. The lava of a stratovolcano is high in silica content and is very viscous (thick). It thus cannot flow very far and often solidifies before reaching a long distance. The volcano continuously erupts and the solidified lava builds on the existing land, forming steep slopes.
