ThePlate_tectonics-Science class-10.pptx

Plate tectonics

1. Plate tectonics

2. LAYERS OF THE EARTH’S LITHOSPHERE CRUST UPPER MANTLE

3. CRUST ROCKS Sedimentary, Metamorphic, Igneous DENSITY - 2.8 g/cm3 THICKNESS- 5 to 50 km The crusts is thickest in a part where relatively young mountain is present and thinnest along the ocean floor.

4. Kinds of crust

5. Continental crust The thicker but less dense Oceanic crust Thinner but less denser than continental crust

6. Triangulation method A method used to locate the epicenter of an earthquake. It uses 3 recording stations.

7. Types of plate boundaries Divergent plate boundary Convergent plate boundary Transform fault boundary

8. Divergent plate boundary

9. Convergent plate boundary

10. Transform fault boundary