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  • 1. ROCKS
  • 2. Are classified according to the environment in which they _________ form
  • 3. Types of Rocks: ________ ________ ________ sedimentary igneous metamorphic
  • 4. IGNEOUS ROCKS
  • 5. Where Does Igneous Rock Form?
  • 6. I. FORMATION OF IGNEOUS ROCKS
  • 7. A. Igneous rocks form directly from the _____________ and _____________ solidification crystallization
  • 8. of _____molten rock to form _______ rock solid liquid
  • 9. FOUNTAINING
  • 10. FISSURE ERUPTION
  • 11.  
  • 12. LAVA FLOW
  • 13.  
  • 14. LAVA FLOW OVER A ROAD
  • 15. LAVA FLOW THROUGH FORREST
  • 16. Kilauea, HI 2003
  • 17. Kilauea, HI , 2003
  • 18.  
  • 19. Mt. ST. Helens
  • 20. Volcanic crater
  • 21. crazy vulcanist
  • 22. SKY LIGHT
  • 23.  
  • 24.  
  • 25.  
  • 26.  
  • 27.  
  • 28.  
  • 29. B. _____________ is the process when a liquid rock cools, crystallization
  • 30. and it changes to a solid made of ________ ___________ INTERGROWN CRYSTALS
  • 31.  
  • 32. GRANITE MICROSCOPIC VIEW
  • 33. 2. CLASSIFICATION OF IGNEOUS ROCKS:
  • 34. A. 2 characteristics that are used to classify igneous rocks:
  • 35.
    • 1. ______________
    • 2. ______________
    texture mineral composition
  • 36.  
  • 37. B. Texture of an igneous rock describes the
  • 38. _________, __________ and ____________ of the mineral crystals it was made from. size shape arrangement
  • 39. C. The ______ of the crystals depends on the _______________________ size Rate of cooling
  • 40. Slow cooling = ____________ large crystals
  • 41.  
  • 42. MINERAL CRYSTALS
  • 43. GABBRO
  • 44. Fast cooling = ____________ fine crystals Or no crystals (glassy)
  • 45. GLASSY TEXTURE: OBSIDIAN
  • 46. BASALT: FINE CRYSTALS
  • 47. BASALT MICROSCOPIC VIEW
  • 48. Granite: Coarse crystals Basalt: Fine crystals (Microscopic views)
  • 49. FINE CRYSTAL: RYOLITE
  • 50. 3 . EXTRUSIVE IGNEOUS ROCKS:
    • A. _____________ occurs when molten (liquid) rock flows out of the earth as
    • ________________
    Extrusions lava
  • 51. lava magma
  • 52. And cools __________ quickly
  • 53.
    • to form
    • fine or no
    • ____________
    crystals
  • 54. gas pockets Vesicular basalt
  • 55. This rock if full of gas pockets frothy texture (vesicular)
  • 56.
    • B.
    • To form magma,
    • ____________
    • must be melted.
    minerals
  • 57.
    • C. Minerals melt
    • at different
    • ____________ and ___________
    temperatures pressures
  • 58.
    • D. Igneous rocks of different
    • ____________
    composition
  • 59.
    • Can form from the same body of ____________
    magma
  • 60. 4. INTRUSIVE IGNEOUS ROCKS :
    • A. _____________ occurs when molten
    • rock beneath the surface
    Intrusions (magma)
  • 61.
    • cools
    • ____________
    • to form
    • _____________
    slowly coarse crystals
  • 62. Granite: Coarse crystals Basalt: Fine crystals (Microscopic views)
  • 63.  
  • 64. 5. FELSIC
    • A. Igneous rocks of the continental crust are rich in
    • _________ density
    • _________ colored
    • minerals
    low light (granitic)
  • 65. 6. MAFIC
    • A. Igneous rocks of the ocean floor are rich in
    • _________ density
    • _________ colored
    • minerals
    high dark (basaltic)
  • 66.  
  • 67. Comparing Oceanic Crust To Continental Crust
  • 68.
    • Continental Crust:
    • 1.
    • 2.
    • 3.
    • 4.
    • 5.
    low density light color felsic granitic thick
  • 69.
    • Oceanic Crust :
    • 1.
    • 2.
    • 3.
    • 4.
    • 5.
    high density dark color mafic basaltic thin
  • 70. Complete the Activity
    • Use this diagram in your ESRT to answer the following:
    •  
    • What is the temperature for the interface between the following…
    • inner core and outer core? 6250° C
    • Outer core and stiffer mantle? 5000° C
    •  
    • Stiffer Mantle and athenosphere? 2600° C
    •  
    • Asthenosphere and lithosphere? 750° C
  • 71.
    • What is the depth of the interface between the stiffer mantle and the outer core? 2900 KM
    •  
    • State the relationship between depth and pressure :As depth increase pressure increases
    • State the relationship between depth and temperature:
    • As depth increases temperature increases
  • 72.  
  • 73. When rocks melt, bonds broken. Crystalline solid no longer exists. MELTING ROCKS AND CRYSTALLIZING MAGMA Rock magma magma rock
  • 74.
    • Hot liquid contains still solid fragments
    • Minerals melt at different temperatures
    • Melting causes changes in magma composition
    MELTING ROCKS AND CRYSTALLIZING MAGMA Rock magma magma rock
  • 75.
    • Cooling of hot liquid allows crystallization of minerals
    • Bonds are re-established
    • Crystalline structure grows until edges touch adjacent crystals
    • Minerals crystallize at different temperatures
    MELTING ROCKS AND CRYSTALLIZING MAGMA Rock magma magma rock
  • 76. OK……….. TAKE OUT YOUR REFERENCE TABLE
  • 77.  

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