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retreating subduction: caused by weak coupling between the lower and upper plate which leads to the opening of a back arc basin and the subduction zone being moved by slab rollback. stable subduction: caused by intermediate coupling between the lower and upper plate. The subduction zone generally stays in the same place and the subduction plate ...
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]
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;
As the subduction zone and its associated trench pull backward, the overriding plate is stretched, thinning the crust and forming a back-arc basin. In some cases, extension is triggered by the entrance of a buoyant feature in the subduction zone, which locally slows down subduction and induces the subducting plate to rotate adjacent to it.
The direction of the subduction system changes since the break-off of slab creates the space, which is the major parameter of this model. [4] The evolution diagram showing how the subduction reversal initiated by a break-off slab at subducting plate: Brown colour is the less dense continental crusts; White colour is the oceanic crust; 1. Two ...
The subduction model indicates that the opening of the South China Sea was caused by the slab pull from the subduction of a proto-South China Sea oceanic plate south under Borneo. The existence of the Sabah orogeny supports this subduction. [10] The subduction starts in the Paleocene and ended in the Early Miocene. [11]
The forearc subduction interface can include a seismogenic zone, where megathrust earthquakes can occur, a decoupled zone, and a viscously coupled zone. [ 4 ] [ 8 ] The accretionary prism is located at the slope of the trench break where there is significantly decreased slope angle.
Diagram of Wadati–Benioff zone, from the United States Geological Survey Seismicity cross-section, Kuril Islands subduction zone, 15 November 2006, 8.3 M w event marked as star A Wadati–Benioff zone (also Benioff–Wadati zone or Benioff zone or Benioff seismic zone ) is a planar zone of seismicity corresponding with the down-going slab in ...