Why do convergent boundaries cause the formation of volcanoes?

Answer 1

Convergent boundaries occur when two tectonic plates collide, with one plate typically being forced beneath the other in a process known as subduction. As the subducting plate sinks deeper into the mantle, it starts to melt due to the increase in temperature and pressure. The molten rock, or magma, then rises towards the surface, eventually causing volcanic eruptions.

The magma that reaches the surface can form volcanoes as it erupts, cools, and solidifies. This process repeats over time, leading to the formation of a volcanic mountain. Additionally, the intense pressure and friction at convergent boundaries can also lead to the melting of rocks from the crust, further contributing to volcanic activity.

Overall, convergent boundaries are hot spots for volcanic activity due to the intense geological forces and processes happening at these plate boundaries.