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STRUCTURE OF THE EARTH STRUCTURE OF THE EARTH Inner Core D. Hardin STRUCTURE OF THE EARTH Inner Core D. Hardin STRUCTURE OF THE EARTH Inner Core D. Hardin STRUCTURE OF THE EARTH Inner Core D. Hardin STRUCTURE OF THE EARTH Inner Core D. Hardin STRUCTURE OF THE EARTH Inner Core D. Hardin LITHOSPHERE Continental Crust Oceanic Crust Asthenosphere Upper Mantle D. Hardin ROCK CYCLE Earth’s surface Intrusive Igneous D. Hardin INTRUSIVE IGNEOUS ROCK Blue Pearl Granite - Norway Petersburg Granite - Virginia Mt. Rushmore, South Dakota D. Hardin INTRUSIVE IGNEOUS ROCK Giant’s Causeway, N. Ireland Sheepeater Cliff, Yellowstone NP, Wyoming D. Hardin ROCK CYCLE Extrusive Igneous Rise of magma Earth’s surface Intrusive Igneous Rise of magma D. Hardin EXTRUSIVE IGNEOUS ROCK Volcanic ash Obsidian Obsidian tools Ash (magnified) Lava (pahoehoe) Pumice D. Hardin ROCK CYCLE Weathering: Disintegrate Decompose Dissolve Extrusive Igneous Rise of magma Uplift & uncovering Earth’s surface Intrusive Igneous Rise of magma D. Hardin WEATHERING DISINTEGRATE frost wedging sandblasting DECOMPOSE Coolest job in America! biological weathering DISSOLVE ROCK CYCLE Weathering: Disintegrate Decompose Dissolve Extrusive Igneous Rise of magma Intrusive Igneous Uplift & uncovering Erosion & deposition Earth’s surface Burial & lithification Sedimentary Rise of magma D. Hardin SEDIMENTARY ROCK Grand Canyon, Arizona Dinosaur trackway D. Hardin SEDIMENTARY ROCK Environment Sediment Desert Floodplain Sand Mud Swamp Plants Sandstone Shale Animals Warm, shallow sea Rock Limestone Coal D. Hardin ROCK CYCLE Weathering: Disintegrate Decompose Dissolve Extrusive Igneous Rise of magma Uplift & uncovering Erosion & deposition Earth’s surface Burial & lithification Intrusive Igneous Sedimentary Rise of magma Metamorphic D. Hardin METAMORPHIC ROCK Sedimentary parent Sandstone Quartzite Quartz Michelangelo’s “David” Shale Limestone Slate Schist Marble ? Coal Carrara, Italy D. Hardin ROCK CYCLE Weathering: Disintegrate Decompose Dissolve Extrusive Igneous Rise of magma Uplift & uncovering Erosion & deposition Earth’s surface Burial & lithification Intrusive Igneous Sedimentary Rise of magma Metamorphic D. Hardin CLASSROOM EXAMPLES Intrusive Igneous COOLED SLOWLY UNDER THE SURFACE! CRYSTALS! HARD! STRONG! MADE TO LAST! (all granite) D. Hardin CLASSROOM EXAMPLES Extrusive Igneous COOLED QUICKLY ABOVE THE SURFACE! volcanic ash VOLCANIC GLASS! NO CRYSTALS! obsidian lava pumice D. Hardin CLASSROOM EXAMPLES Sedimentary fossiliferous limestone MADE OF BURIED SEDIMENTS! sandstone FOSSILS! shale coal (bituminous) LAYERED! D. Hardin CLASSROOM EXAMPLES Metamorphic CHANGED INSIDE THE EARTH! STRONGER THAN THE PARENT ROCK! schist CAN HAVE SOME QUALITIES OF THE PARENT ROCK! quartzite marble D. Hardin ROCK CYCLE Weathering: Disintegrate Decompose Dissolve Extrusive Igneous Rise of magma Uplift & uncovering Erosion & deposition Earth’s surface Burial & lithification Intrusive Igneous Sedimentary Rise of magma Metamorphic D. Hardin
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