Layers of Earth

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  • Layers of Earth
    • Core
      • INNER CORE solid ball containing iron/nickle
      • OUTER CORE semi molten containing iron and nickle
    • Mantle
      • made of silicate rocks
      • part nearest core quite rigid
      • layer above called asthenosphere is semi-molten (can flow)
      • top of mantle is rigid
    • Crust
      • top of mantle + crust = lithosphere
      • two types of crust - continental and oceanic
        • Continental is thicker (30-70km) and less dense
        • Oceanic thinner (6-10km) and more dense


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