The Gambia has no migrating wildebeest, giraffes or any of the large animals commonly associated with Africa. However without leaving your hotel you can see a breathtaking variety of bird life, in addition to monkeys and lizards. Baboons and crocodiles can be seen nearby and then far up the river, hippos.
As the gasses collect in the magma chamber, the pressure rises. It is possible for the pressure to rise so much that the chamber cannot contain the magma and it erupts explosively. Some US Parks that have active volcanoes formed as the result of subduction related processes are: 1  Crater Lake National Park, OR.
When magma reaches the surface, it is called lava. When lava has cooled, it forms a type of rock called igneous rock, which means âfrom fireâ. Volcanoes can form in 3 major ways: 1. Volcanoes at Convergent Boundaries Most volcanoes form at convergent boundaries called subduction zones. At these boundaries, oceanic plates subduct below continental plates. As the denser oceanic plate sinks down, heat from the Earth melts the plate and the rock becomes magma.