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  2. Accretion (geology) - Wikipedia

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

    Oceanic-continental convergence and creation of accretionary wedge Stages of accretion through time with accretionary wedge and volcanic island arc. In geology, accretion is a process by which material is added to a tectonic plate at a subduction zone, frequently on the edge of existing continental landmasses.

  3. Accretionary wedge - Wikipedia

    en.wikipedia.org/wiki/Accretionary_wedge

    An accretionary wedge or accretionary prism forms from sediments accreted onto the non-subducting tectonic plate at a convergent plate boundary. Most of the material in the accretionary wedge consists of marine sediments scraped off from the downgoing slab of oceanic crust , but in some cases the wedge includes the erosional products of ...

  4. Category:Chart patterns - Wikipedia

    en.wikipedia.org/wiki/Category:Chart_patterns

    Download as PDF; Printable version; ... Pages in category "Chart patterns" ... Wedge pattern This page was last ...

  5. Prism (geology) - Wikipedia

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

    An accretionary prism or accretionary wedge is formed from sediments that are accreted onto the non-subducting tectonic plate at a convergent plate boundary.Most of the material in the accretionary wedge consists of marine sediments scraped off from the downgoing slab of oceanic crust but in some cases includes the erosional products of volcanic island arcs formed on the overriding plate.

  6. Critical taper - Wikipedia

    en.wikipedia.org/wiki/Critical_taper

    The result of these feedbacks is the stable angle of the wedge known as the critical taper. When natural processes (such as erosion, or an increase in load on the wedge due to emplacement of a sea or ice cap) change the shape of the wedge, the wedge will react by internally deforming to return to a critically tapered wedge shape. The critical ...

  7. Forearc - Wikipedia

    en.wikipedia.org/wiki/Forearc

    Initial theories proposed that the oceanic trenches and magmatic arcs were the primary suppliers of the accretionary sedimentation wedges in the forearc regions. More recent discovery suggests that some of the accreted material in the forearc region is from a mantle source along with trench turbidites derived from continental material. This ...

  8. Convergent boundary - Wikipedia

    en.wikipedia.org/wiki/Convergent_boundary

    An accretionary wedge forms on the continental crust as deep-sea sediments and oceanic crust are scraped from the oceanic plate. Volcanic arcs form on continental lithosphere as the result of partial melting due to dehydration of the hydrous minerals of the subducting slab.

  9. Chart pattern - Wikipedia

    en.wikipedia.org/wiki/Chart_pattern

    A chart pattern or price pattern is a pattern within a chart when prices are graphed. In stock and commodity markets trading, chart pattern studies play a large role during technical analysis. When data is plotted there is usually a pattern which naturally occurs and repeats over a period. Chart patterns are used as either reversal or ...