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  • What's Beneath You at 5km Below Earth's Surface? | Geology Explained
    If you're 5 km below the Earth's surface, you're still within the Earth's crust.

    Here's what you might find:

    * More rock: The crust is primarily composed of various types of rock, like granite, basalt, and sedimentary rocks.

    * Possibly some soil: The topmost layer of the crust might contain soil, depending on the location.

    * Maybe some water: Groundwater exists in porous rock layers in the crust.

    * No molten rock (magma): You wouldn't find magma at this depth. Magma is found in the Earth's mantle, below the crust.

    Note: The thickness of the Earth's crust varies. It's thinner under the oceans (oceanic crust) and thicker under continents (continental crust).

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