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

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Presentation transcript:

ROCKS AND MINERALS HOW ROCKS FORM

SCIENCE ROCKS!!!!

MINERALS CHARACTERISTICS

AMETHYST (QUARTZ)

Naturally occuring

ROSE QUARTZ WHITE QUARTZ SMOKY QUARTZ

Inorganic

FOOLS GOLD IRON PYRITE

Solid

Definite crystalline shape

Definite chemical composition: 1 or more elements

MOST COMMON MINERALS Silicates: 96% Carbonates Oxides

ROCK Made up of 2 or more minerals

IGNEOUS ROCK

IGNEOUS ROCK

SEDIMENTARY ROCK

METAMORPHIC ROCK

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

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

ROCK CYCLE

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

calcite shells limestone marble deposition lithification High heat & pressure

silicate sand sandstone quartzite deposition lithification High heat & pressure

silicate clay silt shale slate deposition lithification High heat & pressure

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

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)