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subduction    
n.
[地]潜没(指一个地壳板夫下降到另一个板块之下的过程)

[地]潜没(指一个地壳板夫下降到另一个板块之下的过程)

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  • Subduction - Wikipedia
    Subduction is possible because the cold and rigid oceanic lithosphere is slightly denser than the underlying asthenosphere, the hot, ductile layer in the upper mantle Once initiated, stable subduction is driven mostly by the negative buoyancy of the dense subducting lithosphere
  • Introduction to Subduction Zones: Amazing Events in Subduction Zones
    Where they collide and one plate is thrust beneath another (a subduction zone), the most powerful earthquakes, tsunamis, volcanic eruptions, and landslides occur
  • What Is The Process Of Subduction? - WorldAtlas
    In geological terms, subduction is the act of one tectonic plate moving under another tectonic plate at the point of their convergent boundary As the subducting plate moves under its neighboring tectonic plate, gravity pushes it further down and into the mantle layer of the earth
  • Subduction zone | Plate Tectonics, Oceanic Crust Volcanism - Britannica
    Subduction zone, oceanic trench area marginal to a continent in which, according to the theory of plate tectonics, older and denser seafloor underthrusts the continental mass, dragging downward into the Earth’s upper mantle the accumulated trench sediments
  • Subduction: The Sinking of Tectonic Plates - ThoughtCo
    Subduction, Latin for "carried under," is a term used for a specific type of plate interaction It happens when one lithospheric plate meets another—that is, in convergent zones —and the denser plate sinks down into the mantle
  • Subduction Zone: Definition, Features, Types - Geology In
    A subduction zone is a region of the Earth's crust where two tectonic plates meet, and one plate is forced beneath the other into the mantle This process, called subduction, occurs at convergent boundaries and is a primary mechanism driving plate tectonics, leading to volcanic activity, earthquakes, and mountain formation
  • Whats a Subduction Zone? Everyone in the Pacific NW Should Know
    Subduction zones are responsible for powerful earthquakes, tsunamis and volcanic activity, making them some of the most geologically active and hazardous areas on Earth
  • What Is a Subduction Zone? - Live Science
    When two tectonic plates meet at a subduction zone and one slides underneath the other, this lithosphere material curves down into the hot mantle This subduction process frequently occurs
  • The Subduction Zone Process in Plate Tectonics
    One of the most significant mechanisms within plate tectonics is subduction, where one tectonic plate is forced beneath another into the mantle This process is driven by a combination of forces, including ridge push and slab pull, and is influenced by mantle convection, accretion, and suction
  • Convergent Plate Boundaries—Subduction Zones - U. S. National Park Service
    Subduction zones form where a plate with thinner (less-buoyant) oceanic crust descends beneath a plate with thicker (more-buoyant) continental crust





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