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Lecture9 rockcycle
 

Lecture9 rockcycle

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    Lecture9 rockcycle Lecture9 rockcycle Presentation Transcript

    • The Rock Cycle
    • Quiz 3!
    • Rock cycle metamorphic rocks igneous rocks sedimentary rocks important to note rock types, processes, intermediary states, and shortcuts
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    •  
    • IGNEOUS ROCK
    • Magma cools & solidifies Igneous Rock The Rock Cycle
    • Weathering- Surface processes that physically disrupt and chemically change rocks
    • Transport of Weathered Materials
    • Sediment Deposition
    • Magma cools & solidifies Igneous Rock Weathering Transport & Deposition Sediment The Rock Cycle
    • SEDIMENTARY ROCK Lithification 1 mm
    • cools & solidifies Igneous Rock Weathering Transport & Deposition Sedimentary Rock Lithification The Rock Cycle Magma Sediment
    • Sedimentary rocks exposed in the Canadian Rockies
    • cools & solidifies Igneous Rock Weathering Transport & Deposition Sedimentary Rock Lithification Weathering Transport & Deposition The Rock Cycle Magma Sediment
    • METAMORPHIC ROCKS
    • cools & solidifies Igneous Rock Weathering Transport & Deposition Sedimentary Rock Lithification Weathering Transport & Deposition Metamorphic Rock Heat & Pressure The Rock Cycle Heat & Pressure Magma Sediment
    • Limestone- sedimentary rock Marble- metamorphic rock
    • How is Turkey Like a Metamorphic Rock? Transformed in the Solid State
    • If there is melting , then it’s not metamorphism
    • The Rock Cycle cools & solidifies Igneous Rock Weathering Transport & Deposition Sedimentary Rock Lithification Weathering Transport & Deposition Metamorphic Rock Heat & Pressure melting Heat & Pressure melting Magma Sediment melting
    • The Rock Cycle cools & solidifies Igneous Rock Weathering Transport & Deposition Sedimentary Rock Lithification Weathering Transport & Deposition Metamorphic Rock Heat & Pressure melting Heat & Pressure melting Weathering Transport & Deposition Magma Sediment melting
    • The Rock Cycle cools & solidifies Igneous Rock Weathering Transport & Deposition Sedimentary Rock Lithification Weathering Transport & Deposition Metamorphic Rock Heat & Pressure melting Heat & Pressure melting Weathering Transport & Deposition Magma Sediment melting
    • The Rock Cycle cools & solidifies Igneous Rock Weathering Transport & Deposition Sedimentary Rock Lithification Weathering Transport & Deposition Metamorphic Rock Heat & Pressure melting melting Heat & Pressure melting Weathering Transport & Deposition Magma Sediment
    • Heat & Pressure Heat & Pressure The Rock Cycle cools & solidifies Igneous Rock Weathering Transport & Deposition Sedimentary Rock Lithification Weathering Transport & Deposition Metamorphic Rock melting melting Weathering Transport & Deposition Magma Sediment melting
      • Earth’s
      • Internal structure
      • Core (2200 mi)
      • Mantle (1800 mi)
      • Crust (5-25 mi)
    • Inner Core Mantle Crust Outer core
      • solid (due to very high pressure)
      • composed of Fe & Ni
      • 7000-9000 °F
    • Outer Core
      • molten
      • composed of Fe & Ni
      • 5400-7000 °F
      • generates magnetic field due to convective flow
      Inner core Mantle Crust
    • Mantle Inner core Crust Outer core
      • majority of Earth’s volume
      • composed of oxides of Fe, Si, and Mg
      • data from volcanic material & experimental work
      • - 3300- 5100 °F
      • - divided into 3 zones
    • 3 mantle zones
      • Uppermost mantle
        • - rigid
      • Asthenosphere
        • - plastic
        • - moves indpt of lithosphere
      • Mesosphere
        • - rigid
      Mesosphere Asthenosphere Uppermost mantle lithosphere mantle
    • Crust
      • thin, brittle layer
      • contains continents & ocean basins
      • abundant elements: O, Si, Al, and Fe
      • Moho = discontinuity between crust & mantle
      • Lithosphere = crust +
      • uppermost mantle
      Mantle Outer core Inner core
    • Continental vs. oceanic crust Continental Oceanic Thickness thick thin Composition granite basalt Elements Si & Al Fe & Mg Density low high Age old young
    • Isostasy
      • maintenance of hydrostatic equilibrium of crust
      • -AKA buoyancy
      • adding weight to crust = sink
      • removing weight = rise
    • Excel Demo