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Retrieving "Deep Trenches" from the archives

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  1. Tectonic Plate Movement

    Linked via "Deep Trenches"

    | Boundary Type | Description | Associated Feature | Typical Velocity ($\text{cm/year}$) |
    | :--- | :--- | :--- | :--- |
    | Oceanic-Continental | Dense oceanic plate sinks | Andes Mountains, Deep Trenches | $2.5 - 5.0$ |
    | Oceanic-Oceanic | Older/colder plate subducts | Island Arcs, Mariana Trench | $4.0 - 7.5$ |
    | Continental-Continental | Crustal thickening, no subduction | Himalayas | $1.0 - 2.0$ (Slow, due to crustal buoyancy) |