1. ROCKS

2. Are classified according to the environment in which they _________
form

3. Types of Rocks: ________ ________ ________
igneous
Types of Rocks: ________ ________ ________
sedimentary
metamorphic

4. IGNEOUS ROCKS

5. Where Does
Igneous Rock Form?

6. I. FORMATION OF IGNEOUS ROCKS

7. solidification crystallization
A. Igneous rocks form directly from the _____________ and _____________
crystallization

8. of _____molten rock to form _______ rock
liquid
of _____molten rock to form _______ rock
solid

9. FOUNTAINING

10. FISSURE ERUPTION

12. LAVA FLOW

14. LAVA FLOW OVER A ROAD

15. LAVA FLOW THROUGH FORREST

16. Kilauea, HI
2003

17. Kilauea, HI , 2003

19. Mt. ST. Helens

20. Volcanic crater

21. crazy vulcanist

22. SKY LIGHT

29. B. _____________ is the process when a liquid rock cools,
crystallization
B. _____________ is the process when a liquid rock cools,

30. and it changes to a solid made of ___________________
INTERGROWN
CRYSTALS

32. GRANITE MICROSCOPIC VIEW

33. 2. CLASSIFICATION OF IGNEOUS ROCKS:

34. A. 2 characteristics that are used to classify igneous rocks:

35. texture
1. ______________
2. ______________
mineral
composition

37. B. Texture of an igneous rock describes the

38. size shape arrangement
_________, __________ and ____________ of the mineral crystals it was made from.
arrangement

39. C. The ______ of the crystals depends on the _______________________
size
C. The ______ of the crystals depends on the _______________________
Rate of
cooling

40. Slow cooling = ____________
large crystals

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:
Extrusions
A. _____________ occurs when molten (liquid) rock flows out of the earth as
________________
lava

51. lava
magma

52. And cools
__________
quickly

53. to form
fine or no
____________
crystals

54. Vesicular basalt
gas pockets

55. frothy texture
(vesicular)
This rock if full of gas pockets

56. B.
To form magma,
____________
must be melted.
minerals

57. pressures temperatures 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:
Intrusions
A. _____________ occurs when molten
rock beneath the surface
(magma)

61. cools
____________
to form
_____________
slowly
coarse crystals

62. Granite:
Coarse
crystals
Basalt:
Fine
crystals
(Microscopic views)

64. low light (granitic) 5. FELSIC
A. Igneous rocks of the continental crust are rich in
_________ density
_________ colored
minerals
low
light
(granitic)

65. high dark (basaltic) 6. MAFIC
A. Igneous rocks of the ocean floor are rich in
_________ density
_________ colored
minerals
high
dark
(basaltic)

67. Comparing
Oceanic Crust To
Continental Crust

68. low density light color granitic felsic thick Continental Crust: 1. 2.3. 4. 5.
low density
light color
granitic
felsic
thick

69. high density dark color basaltic mafic thin Oceanic Crust: 1. 2. 3. 4.5.
high density
dark color
basaltic
mafic
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

73. When rocks melt, bonds broken. Crystalline solid no longer exists.
MELTING ROCKS AND CRYSTALLIZING MAGMA
Rock magma magma rock
When rocks melt, bonds broken.
Crystalline solid no longer exists.

74. Hot liquid contains still solid fragments
MELTING ROCKS AND CRYSTALLIZING MAGMA
Rock magma magma rock
Hot liquid contains still solid fragments
Minerals melt at different temperatures
Melting causes changes in magma composition

75. Cooling of hot liquid allows crystallization of minerals
MELTING ROCKS AND CRYSTALLIZING MAGMA
Rock magma magma rock
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

76. OK……….. TAKE OUT YOUR REFERENCE TABLE