Volcanoes often vary in terms of shape and structure. Some volcanoes can be small, cone-shaped, or some can be characterized as simply cracks in the earth’s crust where lava and other volcanic materials erupt; some volcanoes can be large and shaped like domes, shields; and lastly, there are volcanoes that are shaped like a mountain with a matching crater or a system of craters on its summit. There are numerous mechanisms how volcanoes are formed: the most common type of volcanism (mechanism how volcanoes are formed) is hot spot volcanism.
Most volcanoes are formed when an unusual magma activity forms in ...
