1. Ex 4 : Plate Tectonics (on Mars)

2. Plate Tectonics Composition Types of Heat Transfer Heat Transfer Plate tectonics Volcanism Mars

3. Composition

4. Heat Transfer types

5. Heat transfer

6. Plate tectonics Lecture : http://www.youtube.com/watch?v=JmC- vjQGSNM

7. Volcanism http://education.sdsc.edu/optiputer/flash/hot Spots.htm

8. Mars http://csep10.phys.utk.edu/astr161/lect/mars/ surface.html

9. Notes 1) Plate tectonics implies chains of volcanoes, which means that in a chain there is a progression of age 2) Crater counting, provides an independent way of measuring the surface, which includes the age of volcanoes 3) Without any direct evidence for plate tectonics we need to resort to crater counting