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Unformatted text preview: Chapter 6
Rocks Studying Rocks
Naturally formed material made of minerals
and other materials.
and Building blocks of the earth. Provide metal & mineral products. Most are made of the same 20 minerals. Rock Groups Classified into one of three groups based on
• Metamorphic Igneous Rocks
“Fire.” Formed as molten magma or lava cools.
Formed Sedimentary Rock Formed when layers of sediment (small
weathered pieces of rock) are cemented
together. Metamorphic Rock
“Change.” Formed when heat and pressure change the
texture & mineral content of the rock.
texture “Cooked rock.” The Rock Cycle Shows interactions in the processes that
cause rock formation.
cause Sedimentary Rocks
sedimentation Weathering &
erosion Heat & Pressure Sediments
Igneous Rock Weathering &
Heat & Pressure Metamorphic
Cooling Melting Magma Melting ...
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- Fall '10