Thursday, 13 October 2011

The formation of volcanoes explained in geological terms

The computer graphics shows Iceland on the mid-Atlantic ridge, a great fault lying between the Americas and Africa. The Earth's surface is divided into plates. The plates move across the Earth’s surface causing continental drift.
The animation shows a cross-section of the Earth, each layer is described and named, the theory of plate tectonics is introduced. An animation demonstrates the constructive and destructive elements of plate tectonics and how volcanoes are formed along plate boundaries. The video shows how 'hot spot' shape volcanoes on the Pacific plate. Mount Kilauea, Hawaii is a magnificent example of the most active volcanoes on the planet.