1. Igneous Activity Review

2. Igneous Activity click for Final ? click for Final ? Magma/LavaPyroclasticsVolcano Characteristics Infamous Volcanoes Viscosity 200 400 600 800 1000

3. Magma/Lava for 200 What % of lava is gaseous?

4. Magma/Lava 200 1 to 5 % by weight is gaseous.

5. Magma/Lava 400 Gases most often emitted by volcanoes.Gases most often emitted by volcanoes.

6. Magma/Lava 400 Water vapor and carbon dioxide.

7. Magma/Lava 600 Lava with spiny, sharp projections.

8. Magma/Lava 600 aa –Spiny with sharp edges – slightly more viscous

9. Magma Lava 800 Describe pahoehoe.

10. Magma/Lava 800 Not viscous Low in silica Very hot Smooth, ropy texture

11. Magma/Lava 1000 What is the neck of a volcano?

12. Magma/Lava 1000 The resistant rock exposed after the rest has been eroded away.The resistant rock exposed after the rest has been eroded away. –Ship Rock, New Mexico

13. Pyroclactics 200 What is the smallest pyroclastic?

14. Pyroclastics 200 Ash

15. Pyroclastics 400 Describe nue’e ardente.

16. Pyroclastics 400 Firey gas and ash moving down the mountain at 200 km/hr.Firey gas and ash moving down the mountain at 200 km/hr.

17. Pyroclastics 600 Describe lahar.

18. Pyroclastics 600 River of mud and ash from the top of a stratovolcano.River of mud and ash from the top of a stratovolcano.

19. Pyroclastics 800 What becomes “air streamed” after ejection?What becomes “air streamed” after ejection?

20. Pyroclastics 800 Lava bombs.

21. Pyroclastics 1000 Pyroclastics about the size of walnuts are called _____.Pyroclastics about the size of walnuts are called _____.

22. Pyroclastics 1000 Lapilli

23. Volcano Characteristics 200 Volcano type typically has a quiet eruption.Volcano type typically has a quiet eruption.

24. Volcano Characteristics 200 Shield volcano

25. Volcano Characteristics 400 Volcano type has a violent eruption.

26. Volcano Characteristics 400 Stratovolcano or Cone

27. Volcano Characteristics 600 Typically the highest volcanoes from sea level.Typically the highest volcanoes from sea level.

28. Volcano Characteristics 600 stratovolcanoes

29. Volcano Characteristics 800 Smallest volcano type.

30. Volcano Characteristics 800 Cone

31. Volcano Characteristics 1000 Describe caldera.

32. Volcano Characteristics 1000 Volcanic crater at least 1 km wide. –Yellowstone National Park

33. Infamous Volcanoes 200 Which well known volcano is in Hawaii?Which well known volcano is in Hawaii?

34. Infamous Volcanoes 200 Mauna Loa Kilauea

35. Infamous Volcanoes 400 Which large caldera is in the middle of N.A?Which large caldera is in the middle of N.A?

36. Infamous Volcanoes 400 Yellowstone National Park

37. Infamous Volcanoes 600 Why is Mt. St, Helens well known?

38. Infamous Volcanoes 600 Erupted in 1980 Lost most of its top Large lahar Was the last catastrophic eruption in the continental U.S.

39. Infamous Volcanoes 800 Which volcano is currently erupting in Alaska?Which volcano is currently erupting in Alaska?

40. Infamous Volcanoes 800 Mt. Redoubt (2009)

41. Infamous Volcanoes 1000 Why is Vesuvius well known?

42. Infamous Volcanoes 1000 Large nue’e ardente Covered city of Pompeii People and animals perserved in ash

43. Viscosity 200 Magma higher in silica is ____ viscous.Magma higher in silica is ____ viscous.

44. Viscosity 200 more

45. Viscosity 400 Describe the viscosity of basaltic lava.Describe the viscosity of basaltic lava.

46. Viscosity 400 Not Very viscous

47. Viscosity 600 Describe the viscosity of granitic lava.Describe the viscosity of granitic lava.

48. Viscosity 600 Very viscous - high in silicates

49. Viscosity 800 The higher the temp. the ____ viscous.The higher the temp. the ____ viscous.

50. Viscosity 800 less

51. Viscosity 1000 Describe viscosity.

52. Viscosity 1000 A measure of a material’s resistance to flow.A measure of a material’s resistance to flow. More viscous, more slow

53. Final Question Where are most of the world’s volcanoes located?Where are most of the world’s volcanoes located?

54. Final Question Ring of Fire Around the Pacific Ocean