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ROCKS AND MINERALS HOW ROCKS FORM. SCIENCE ROCKS!!!!

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Presentation on theme: "ROCKS AND MINERALS HOW ROCKS FORM. SCIENCE ROCKS!!!!"— Presentation transcript:

1 ROCKS AND MINERALS HOW ROCKS FORM

2 SCIENCE ROCKS!!!!

3 MINERALS CHARACTERISTICS

4 AMETHYST (QUARTZ)

5 Naturally occuring

6 ROSE QUARTZ WHITE QUARTZ SMOKY QUARTZ

7 Inorganic

8 FOOLS GOLD IRON PYRITE

9 Solid

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11 Definite crystalline shape

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13 Definite chemical composition: 1 or more elements

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15 MOST COMMON MINERALS Silicates: 96% Carbonates Oxides

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20 ROCK Made up of 2 or more minerals

21 IGNEOUS ROCK

22 IGNEOUS ROCK

23 SEDIMENTARY ROCK

24 METAMORPHIC ROCK

25 Which type of rock would have formed first on the original crust? Igneous

26 SEDIMENTARY ROCK METAMORPHIC ROCK IGNEOUS ROCK Magma Sediments High Temperature High Pressure Melting Cooling Crystallization Weathering Erosion Lithification (compaction & cementation) Examples: sandstone Shale limestone Examples: slate marble gniess quartzite Examples: granite basalt pumice Examples: sand silt clay

27 ROCK CYCLE

28 In your own words, describe how each type of rock could turn into each of the other types of rock.

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30 calcite shells limestone marble deposition lithification High heat & pressure

31 silicate sand sandstone quartzite deposition lithification High heat & pressure

32 silicate clay silt shale slate deposition lithification High heat & pressure

33 magma Granite gneiss Cooling & Crystallization High heat & pressure Mineral grains aligned in thick layers (foliation); less than 50%

34 magma Granite schist Cooling & Crystallization High heat & pressure Mineral grains aligned into thin layers (foliation); 50% or more basalt green stone Green schist Cooling & Crystallization heat & pressure More heat & pressure EXTRUSIVE (cools quickly) INTRUSIVE (cools slowly)

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