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Published byJavier Wethington Modified over 9 years ago
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ROCKS AND MINERALS HOW ROCKS FORM
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SCIENCE ROCKS!!!!
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MINERALS CHARACTERISTICS
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www.windows.ucar.edu/tour/link=/earth/geology/min_intro.html&edu=high AMETHYST (QUARTZ)
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Naturally occuring
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www.windows.ucar.edu/tour/link=/earth/geology/mineral_id1.html&edu=hig ROSE QUARTZ WHITE QUARTZ SMOKY QUARTZ
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Inorganic
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www.windows.ucar.edu/tour/link=/earth/geology/min_types.html&edu=high FOOLS GOLD IRON PYRITE
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Solid
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www.windows.ucar.edu/tour/link=/earth/geology/silicates2.html&edu=high
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Definite crystalline shape
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http://www.yuprocks.com/alist/amethyst3.shtml
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Definite chemical composition: 1 or more elements
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http://www.yuprocks.com/glist/garnet5.shtml
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MOST COMMON MINERALS Silicates: 96% Carbonates Oxides
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http://www.yuprocks.com/clist/calcite3.shtml
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http://www.yuprocks.com/elist/epidote5.shtml
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http://www.yuprocks.com/blist/beryl1.shtml
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http://en.wikipedia.org/wiki/Diamond
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ROCK Made up of 2 or more minerals
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IGNEOUS ROCK http://mineral.galleries.com/rocks/igneous.htm
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IGNEOUS ROCK
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SEDIMENTARY ROCK
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METAMORPHIC ROCK
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Which type of rock would have formed first on the original crust? Igneous
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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
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ROCK CYCLE http://www.cotf.edu/ete/modules/msese/earthsysflr/rock.html
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In your own words, describe how each type of rock could turn into each of the other types of rock.
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calcite shells limestone marble deposition lithification High heat & pressure
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silicate sand sandstone quartzite deposition lithification High heat & pressure
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silicate clay silt shale slate deposition lithification High heat & pressure
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magma Granite gneiss Cooling & Crystallization High heat & pressure Mineral grains aligned in thick layers (foliation); less than 50%
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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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