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  • Subduction Zones: Formation, Features, and Geological Impact
    When oceanic crust is pushed under continental crust, it's called subduction, and it forms a subduction zone. This process results in several distinct geological features:

    * Trench: The deepest part of the ocean floor, formed where the oceanic plate bends downward.

    * Volcanic arc: A chain of volcanoes on the continental side of the subduction zone, formed by magma rising from the subducted oceanic plate.

    * Accretionary prism: A wedge-shaped mass of sediment and rock scraped off the descending oceanic plate and piled up along the edge of the continent.

    * Fold-and-thrust belts: Mountains formed by compression and folding of the continental crust due to the subduction process.

    * Earthquakes: Frequent and intense earthquakes occur along the subduction zone as the plates slide past each other.

    The specific features and their development vary depending on the angle of subduction, the age and density of the plates, and other factors. However, subduction zones are a fundamental part of plate tectonics and are responsible for many of Earth's most dramatic geological features.

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