1. What Controls Volcanic Eruptions? Ch 12.2

2. Some eruptions are quiet…

3. Some eruptions are EXPLOSIVE! Mt. Pinatubo Mont serrat Mt. St. Helens

6. Water may be added to magma when ocean crust rock is melted at convergent plate boundaries

14. Name That Lava Type!

15. Name That Lava Type!

16. Name That Lava Type!

17. Name That Lava Type!

20. Krakatau 1883 Sound heard 3,000 mi away! 13,000 x more powerful than nuclear blast at Hiroshima in WWII

21. Anak Krakatau (Child of Krakatau)

23. 1. Shield volcanoes Mauna Kea, Hawaii

24. Shield volcanoes Mauna Loa, Hawaii

26. Shield volcano

27. Fissure eruption

29. Columbia Plateau

30. 2. Cinder Cone Volcanoes

31. Cinder Cone Volcanoes

32. Cinder Cone Volcanoes

33. Cinder cone example: Paricut í n, Mexico 1943

36. Ash

37. Cinders

38. Bombs

39. Blocks

40. Cinder Cone Volcanoes

42. Composite Volcanoes

43. Composite Volcanoes

44. Composite Volcanoes

46. Composite Volcanoes: Mt. Kilimanjaro Pinatubo

47. Composite Volcano examples: Soufri è re Hills, Montserrat

48. Composite Volcano examples: Mt Rainier, Washington

49. What city is near Mt. Rainer?