1. Volcanism

2.  3 types of Volcanos on Earth:  Composite volcanos or Stratovolcanos Mt. Fuji, Japan

3. Volcanism  3 types of Volcanos on Earth:  Composite volcanos or Stratovolcanos 2008 eruption of the Chaiten volcano, Chile. Credit: ALVARO VIDAL/AFP/Getty Images

4. Volcanism  3 types of Volcanos on Earth:  Shield Volcanos Mauna Kea, Hawaii

5. Volcanism  3 types of Volcanos on Earth:  Shield Volcanos 1994 eruption of Krafla volcano, Iceland. Credit: USGS

6. Volcanism  3 types of Volcanos on Earth:  Cinder Cones SP Cinder Cone, Arizona

7. Volcanism  3 types of Volcanos on Earth:  Cinder Cones Cerro Negro volcano, Nicaragua, November 1969. Credit: USGS

8. Volcanism  Different magma types can be classified by their silica content: SiO2 CONTENT MAGMA TYPE VOLCANIC ROCK ~50% Mafic Basalt ~60% Intermediate Andesite ~65% Felsic (low Si) Dacite ~70% Felsic (high Si) Rhyolite

9. Volcanism  Stratovolcanos  Form at convergent plate boundaries

10. Volcanism  Stratovolcanos  Form at convergent plate boundaries

11. Volcanism  Shield Volcanos  Form at divergent plate boundaries (rift zones) and at hot spots

12. Volcanism  Shield Volcanos  Form at divergent plate boundaries (rift zones) and at hot spots

13. Volcanism  Cinder Cones  Form on the flanks of larger volcanos or on their own

14. Volcanism  What kind of volcano is Olympus Mons?

15. Volcanism  What kind of volcano is Olympus Mons?

16. Volcanism  Other Martian volcanos… Uranius Tholus Ceraunius Tholus

17. Volcanism  Other Martian volcanos…