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  2. Subduction - Wikipedia

    en.wikipedia.org/wiki/Subduction

    Subduction zone physics: Sinking of the oceanic lithosphere (sediments, crust, mantle), by the contrast of density between the cold and old lithosphere and the hot asthenospheric mantle wedge, is the strongest force (but not the only one) needed to drive plate motion and is the dominant mode of mantle convection. [citation needed]

  3. List of tectonic plate interactions - Wikipedia

    en.wikipedia.org/wiki/List_of_tectonic_plate...

    Obduction zones occurs when the continental plate is pushed under the oceanic plate, but this is unusual as the relative densities of the tectonic plates favours subduction of the oceanic plate. This causes the oceanic plate to buckle and usually results in a new mid-ocean ridge forming and turning the obduction into subduction. [citation needed]

  4. Plate tectonics - Wikipedia

    en.wikipedia.org/wiki/Plate_tectonics

    For a typical distance that oceanic lithosphere must travel before being subducted, the thickness varies from about 6 km (4 mi) thick at mid-ocean ridges to greater than 100 km (62 mi) at subduction zones. For shorter or longer distances, the subduction zone, and therefore also the mean, thickness becomes smaller or larger, respectively. [14]

  5. Convergent boundary - Wikipedia

    en.wikipedia.org/wiki/Convergent_boundary

    Subduction zones are areas where one lithospheric plate slides beneath another at a convergent boundary due to lithospheric density differences. These plates dip at an average of 45° but can vary. Subduction zones are often marked by an abundance of earthquakes, the result of internal deformation of the plate, convergence with the opposing ...

  6. Category:Subduction zones - Wikipedia

    en.wikipedia.org/wiki/Category:Subduction_zones

    Pages in category "Subduction zones" The following 52 pages are in this category, out of 52 total. This list may not reflect recent changes. A. Aleutian subduction zone;

  7. Ring of Fire - Wikipedia

    en.wikipedia.org/wiki/Ring_of_Fire

    : Active volcanoes Global map of subduction zones, with subducted slabs contoured by depth Diagram of the geological process of subduction The Ring of Fire (also known as the Pacific Ring of Fire , the Rim of Fire , the Girdle of Fire or the Circum-Pacific belt ) [ note 1 ] is a tectonic belt of volcanoes and earthquakes .

  8. Slab (geology) - Wikipedia

    en.wikipedia.org/wiki/Slab_(geology)

    The figure is a schematic diagram depicting a subduction zone. The subduction slab on the right enters the mantle with a varying temperature gradient while importing water in a downward motion. A model of the subducting Farallon slab under North America. In geology, the slab is a significant constituent of subduction zones. [1]

  9. Cascadia subduction zone - Wikipedia

    en.wikipedia.org/wiki/Cascadia_subduction_zone

    Structure of the Cascadia subduction zone. The Cascadia subduction zone is a 1,000 km (620 mi) long dipping fault that stretches from Northern Vancouver Island to Cape Mendocino in northern California. It separates the Juan de Fuca and North America plates. New Juan de Fuca plate is created offshore along the Juan de Fuca Ridge.