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  • Earth's Layers: A Comprehensive Guide to Structure and Temperatures
    Here's a breakdown of Earth's four main layers and their approximate temperatures:

    1. Crust:

    * Temperature: Ranges from near the surface temperature to around 870°C (1,600°F) at the boundary with the mantle.

    * Characteristics: This is the outermost, thinnest layer, composed of solid rock. It's divided into oceanic crust (thinner and denser) and continental crust (thicker and less dense).

    2. Mantle:

    * Temperature: Extends from around 870°C (1,600°F) at the base of the crust to about 3,700°C (6,700°F) at the boundary with the outer core.

    * Characteristics: The mantle is the thickest layer, primarily composed of solid rock, but behaves like a very viscous fluid over long periods.

    3. Outer Core:

    * Temperature: Ranging from about 3,700°C (6,700°F) to 5,500°C (10,000°F).

    * Characteristics: Composed primarily of liquid iron and nickel. The movement of molten metal within the outer core generates Earth's magnetic field.

    4. Inner Core:

    * Temperature: Estimated to be around 5,200°C (9,400°F) with pressures so intense that the iron and nickel are in a solid state despite the high temperature.

    * Characteristics: The innermost layer is a solid ball of iron and nickel, under immense pressure.

    Important Notes:

    * These temperatures are estimations, and there is some variation within each layer.

    * The temperature increases with depth due to the heat generated by the Earth's core and radioactive decay within the mantle.

    Let me know if you want more detail on any particular layer!

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