Plate Tectonics is the study of the theory that the earth is composed of many layers. The composition of the earth can be likened to that of an egg, with the outer edge, the shell, and the core, the yolk. The top layer (the crust), the layer which we walk on, is comprised of many slabs of earth, each independant of each other. The movements of these plates are what give us earthquakes and volcanoes. This mind map explains some of the concepts of Plate Tectonics.
Plates slide alongside.
Products, Volcanoes, Earthquakes
Two plates are diverging (moving apart).
(Mid Atlantic Ridge)
Products, Fold Mountains, Earthquakes
Two plates are moving apart.
Products, Fold Mountains, Earthquakes, Volcanoes
Oceanic Plate and Continental Plate Collide.
Pressure built up is released and produces very strong seismic waves.
Measured on Richter scale
Extinct, Unlikely to ever erupt again, Devil's Tower
Dormant, Hasn't erupted in 2500 years, Santorini
Active, Erupted recently, Mt Etna
Composite Volcano, Mixture of Lava and Ash
Shield Volcano, Lava basic and runny, flows quickly and creates flat volcanoes.
Dome Volcano, Lava acid and thicker, flowing slower and hardens quickly to form steep-sided features.