How basic volcano is formed?

Answer 1

A basic volcano, often referred to as a shield volcano, is formed by the gradual accumulation of low-viscosity basaltic lava that flows easily over long distances. As the lava erupts from a central vent or fissure, it spreads out in thin layers, creating a broad, gently sloping structure. Repeated eruptions build up the volcano over time, resulting in its characteristic shield-like shape. These volcanoes typically produce non-explosive eruptions due to the low gas content and fluid nature of the basaltic lava.