1. Volcanism in the Solar System
SES4U

2. Types of Volcanoes Cinder-cone: small, steep
Shield cone: round base, gently sloping
Composite: Large, explosive.

3. Mercury Abundance of surface crators No craters that 50 km in diameter
Evidence of lava filled craters
Volcanic rock samples predate earth

5. Venus 80% of the surface shows volcanic activity
No currently active volcanoes
Many volcanoes are hundreds of kilometres across and thousands of m high.

7. Largest are shield type
No plate tectonics

8. Sapas Mons
400 km across
1.5 km tall
Very long flows

9. Maat Mons

10. Pancake Domes
Single flows, steep sides

11. Similar dome on earth

12. Earth
I’ll get to that in great detail at a later date.

13. The moon
Mare plains
Lava flows

14. Channels

15. Mars Almost volcanically extinct Probably all shield-cone type
At least 3 volcanoes that are larger than is found on earth.
Has the largest volcano in the solar system, Olympus Mons

16. Olympus Mons
640 x 840 km
21 km tall

17. Lava flows

19. IO, a moon of Jupiter
The most volcanically active world in the solar system.
At least 8 active volcanoes have been mapped.
Sulfur plumes can extend over 280 km above IO’s surface.
About the same size as the moon and the same distance from Jupiter as the moon is from the earth.

23. Ganymede volcanoes

24. Europa Volcanoes

25. Triton Ice volcanoes