* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Plate Tectonics Powerpoint by jnb 160
Survey
Document related concepts
Transcript
The Theory of Plate Tectonics By: Geo T. Plate Tectonics The outermost part of the Earth is made of two layers • Lithosphere – the crust and mantle • Asthenosphere – the viscous part of the mantle Plate Tectonics Cont. The Lithosphere floats on the Asthenosphere. The Lithosphere is broken up into tectonic plates. The Plates * Hover over for names Movement The plates move in relation to each other and form three different types of plate boundaries: • Convergent • Divergent • Transform Convergent Occurs when plates collide. There are three types. Divergent Occur when to plates are moving apart and new crust is created by magma pushing up from the Earth’s mantle Transform Occurs where plates grind past each other