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Sam Rock Cycle

this is the "Rock Cycle"
by

Samantha Sparks

on 31 March 2011

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Transcript of Sam Rock Cycle

Metamorphic Sedimentary Igneous Igneous Rocks are formed underground or aboveground.Melted Rock called Magma within the earth becomes trapped in small pockets.As these pockets of magma cool slowly underground, the magma becomes igneous rocks. Igneous rock weathers down by wind and water and gathers at the botom of the water and forms into sedimentary rock. Rock Cycle! Sedimentary rock can be changed into igneous rock by undergoing melting and then solidification.
Sedimentary rock is formed by little pices of rock are worn down away by wind and water.Then they settle at the bottom of the water. Ex:Obsidian,Pumice,Soria Ex:pumice, basalt, andesite, wehrlite, monzonite, anorthosite, weldedtuff, nephelinesyenite. Metamorphic Rocks are rocks that have "morphed" into another kind of rock.These rocks were once igneous or sedimentary rocks.The rocks are under tons and tons of pressure if you examin metamorphic rocks closely,you'll discover how flattened some of the grains in the rock are. Metamorphic rock must first turn into sediment through uplift, weathering, erosion and deposition before the sediments can undergo lithification and become sedimentary rock. Further compaction, pressure, and heat can turn it into metamorphic rock. In order to change into igneous rock it would need to be buried so deep in the earth that the heat partially melts the metamorphic rock forming magma. Then the magma would need to ascend, cool, and undergo recrystallization to form igneous rock.
Ex:Slate, Gneiss, Skarn, Phyllite, Amphibolite, Schist, Quartzite, Marble. A sedimentary rock can become a metamorphic rock by exposure to high heat and great pressure. Any rock can become an igneous rock by melting and reforming. Slitstone Sandstone Conglomerate! Breccia Shale Coal-Anthracite Hematite Halite Limestone Quartz-diorite Basalt Gabbro Andesite Marble Amphibolite Gneiss Hornfels Made By:Samantha Sparks
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