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Sam Rock Cycle
Transcript of Sam Rock Cycle
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