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  2. Plate tectonics - Wikipedia

    en.wikipedia.org/wiki/Plate_tectonics

    Tectonic lithosphere plates consist of lithospheric mantle overlain by one or two types of crustal material: oceanic crust (in older texts called sima from silicon and magnesium) and continental crust (sial from silicon and aluminium). The distinction between oceanic crust and continental crust is based on their modes of formation.

  3. Megathrust earthquake - Wikipedia

    en.wikipedia.org/wiki/Megathrust_earthquake

    Thrust faults are characteristic of areas where the Earth's crust is being compressed by tectonic forces. [11] Megathrust faults occur where two tectonic plates collide. When one of the plates is composed of oceanic lithosphere, it dives beneath the other plate (called the overriding plate) and sinks into the Earth's mantle as a slab.

  4. 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]

  5. New York is shook. But how can an earthquake hit in the ... - AOL

    www.aol.com/finance/york-shook-earthquake-hit...

    Map of the principal tectonic plates of the Earth. The sixteen major pieces of crust and uppermost mantle of the Earth, called the lithosphere, and consisting of oceanic and continental crust.

  6. Tectonics - Wikipedia

    en.wikipedia.org/wiki/Tectonics

    Extensional tectonics is associated with the stretching and thinning of the crust or the lithosphere.This type of tectonics is found at divergent plate boundaries, in continental rifts, during and after a period of continental collision caused by the lateral spreading of the thickened crust formed, at releasing bends in strike-slip faults, in back-arc basins, and on the continental end of ...

  7. Tectonic weapon - Wikipedia

    en.wikipedia.org/wiki/Tectonic_weapon

    Roger Clark, lecturer in geophysics at Leeds University said in the journal Nature in 1996, responding to a newspaper report that there had been two secret Soviet programs, "Mercury" and "Volcano", aimed at developing a "tectonic weapon" that could set off earthquakes from great distance by manipulating electromagnetism, said "We don't think it is impossible, or wrong, but past experience ...

  8. Tectonic uplift - Wikipedia

    en.wikipedia.org/wiki/Tectonic_uplift

    Tectonic uplift is the geologic uplift of Earth's surface that is attributed to plate tectonics. While isostatic response is important, an increase in the mean elevation of a region can only occur in response to tectonic processes of crustal thickening (such as mountain building events), changes in the density distribution of the crust and ...

  9. Tectonophysics - Wikipedia

    en.wikipedia.org/wiki/Tectonophysics

    Tectonophysics is concerned with movements in the Earth's crust and deformations over scales from meters to thousands of kilometers. [2] These govern processes on local and regional scales and at structural boundaries, such as the destruction of continental crust (e.g. gravitational instability) and oceanic crust (e.g. subduction), convection in the Earth's mantle (availability of melts), the ...