Earth_materials_1

Earth_materials_1 - Earth Materials, Processes, and Cycles...

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Unformatted text preview: Earth Materials, Processes, and Cycles Monument Valley Earths Major Cycles Hydrologic cycle Tectonic cycle (Plate Tectonics) Rock cycle Biogeochemical cycles Cycles operate over a range of spatial and time scales The Hydrologic Cycle Groundwater The Tectonic Cycle The Earth is composed of chemically distinct layers Inner core Outer core Mantle Crust Density g/cm 3 Continental crust 2.8 Oceanic crust 2.9 Mantle 4.5 Core 10.7 Entire Earth 5.5 Understanding the Tectonic Cycle Lithosphere is rigid, brittle Asthenosphere is plastic (capable of flowing slowly) elting may occur locally in the mantle. olten rock material is less dense than corresponding solid rock. o, molten material rises (very slowly!!) Lithosphere Asthenosphere Earths tectonic plates rigid portions of lithosphere 3 Types of plate boundaries 1. Divergent 3 Types of plate boundaries 2. Convergent 3 Types of plate boundaries 3. Transform fault The San Andreas Fault in California is a transform fault. The Pacific plate is moving in a northwesterly direction relative to the North American plate....
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Earth_materials_1 - Earth Materials, Processes, and Cycles...

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