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  • Earth's Mantle Composition: Elements & Minerals
    The Earth's mantle is rich in:

    Major Elements:

    * Silicon (Si)

    * Magnesium (Mg)

    * Iron (Fe)

    * Calcium (Ca)

    * Aluminum (Al)

    Other Notable Elements:

    * Oxygen (O)

    * Sodium (Na)

    * Potassium (K)

    * Titanium (Ti)

    * Phosphorus (P)

    Mineralogy:

    The mantle is primarily composed of silicate minerals, including:

    * Olivine: (Mg,Fe)2SiO4

    * Pyroxene: (Mg,Fe)SiO3

    * Garnet: (Mg,Fe,Ca,Al)3Al2(SiO4)3

    Key Points:

    * The mantle is a solid, but it behaves like a very viscous fluid over long periods.

    * The mantle's composition is not uniform, with variations occurring across different depths and regions.

    * The mantle is the source of magma that fuels volcanoes.

    * Plate tectonics is driven by convection currents within the mantle.

    Overall, the Earth's mantle is a complex and dynamic layer with a unique composition that plays a crucial role in the planet's geological processes.

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