They are found at convergent plate boundaries, where the oceanic lithosphere of one plate converges with the less dense lithosphere of another plate. Subduction zones are where the cold oceanic lithosphere sinks back into the mantle and is recycled. Individual plates often include both regions of the oceanic lithosphere and continental lithosphere. The lithosphere is relatively cold and rigid compared with the underlying asthenosphere, and so tectonic plates move as solid bodies atop the asthenosphere. Continental lithosphere is up to 200 km (120 mi) thick. Oceanic lithosphere ranges in thickness from just a few km for young lithosphere created at mid-ocean ridges to around 100 km (62 mi) for the oldest oceanic lithosphere.
#Define obduction plus
The lithosphere consists of the outermost light crust plus the uppermost rigid portion of the mantle. This process of convection allows heat generated by radioactive decay to escape from the Earth's interior. These are in slow motion, due to convection in the underlying ductile mantle. Oceanic plates are subducted creating oceanic trenches.Īccording to the theory of plate tectonics, the Earth's lithosphere, its rigid outer shell, is broken into sixteen larger tectonic plates and several smaller plates. Subduction at a steeper angle is characterized by the formation of back-arc basins. If the subducting plate sinks at a shallow angle, the overriding plate develops a belt of deformation characterized by crustal thickening, mountain building, and metamorphism. Įarthquakes are common along the subduction zone, and fluids released by the subducting plate trigger volcanism in the overriding plate. The slab sinks into the mantle largely under its weight. Once initiated, stable subduction is driven mostly by the negative buoyancy of the dense subducting lithosphere. Subduction is possible because the cold oceanic lithosphere is slightly denser than the underlying asthenosphere, the hot, ductile layer in the upper mantle underlying the cold, rigid lithosphere. Rates of subduction are typically measured in centimeters per year, with the average rate of convergence being approximately two to eight centimeters per year along most plate boundaries. The process of subduction has created most of the Earth's continental crust. A region where this process occurs is known as a subduction zone, and its surface expression is known as an arc-trench complex. Where the oceanic lithosphere of a tectonic plate converges with the less dense lithosphere of a second plate, the heavier plate dives beneath the second plate and sinks into the mantle. Subduction is a geological process in which the oceanic lithosphere is recycled into the Earth's mantle at convergent boundaries. The Fighter Collection & Eagle Dynamics, Inc.Diagram of the geological process of subduction Play, Star VR, Fove, LG 360 VR, Altergaze, Zeiss VR One, Homido, Freefly VR, Gear, Daydream, OSVR OSVR, Play, Star VR, Fove, LG 360 VR, Altergaze, Zeiss VR One, Homido, Freefly VR, Cardboard, GearĪction, Adventure, Strategy, Early Access OSVR, Play, Star VR, Fove, LG 360 VR, Altergaze, Zeiss VR One, Homido, Freefly VR, Gear, Cardboard, Vive OSVR, Play, Star VR, Fove, LG 360 VR, Altergaze, Zeiss VR One, Homido, Freefly VR, Cardboard OSVR, Play, Star VR, Fove, LG 360 VR, Altergaze, Zeiss VR One, Homido, Freefly VR, Gear, Cardboard, Vive, Rift OSVR, Play, Star VR, Fove, LG 360 VR, Altergaze, Zeiss VR One, Homido, Freefly VR, Cardboard, Gear, iOS OSVR, OSVR, Play, Star VR, Fove, LG 360 VR, Altergaze, Zeiss VR One, Homido, Freefly VR, Cardboard, Gear, Steam, Vive Avegant’s patented Retinal Imaging Technology uses advanced optics and microscopic mirrors to project images directly to the eyes. The Glyph recreates natural sight-there’s no screen. Put the Glyph on, and you’ll get the idea in seconds. The mediawear delivers audio, or vision plus audio, in a familiar form that goes anywhere with you-a distinct advantage over other head-mounted displays. The Glyph’s streamlined design communicates its extraordinary abilities at first glance. Start seeing your content in vivid detail, no matter where you are. Glyph mediawear is the world’s first personal theater designed with lightweight portability, rich audio and amazingly precise video. Thus, while the Avegant Glyph "works" with every game on this wiki, its motion control functionality may only work on certain titles. This means that, while there are 9 degrees of IMU motion tracking, it can also function as a "monitor" of sorts for games without VR compatibility. The Avegant Glyph is a unique device in that, unlike other solutions, it functions on HDMI output and a return signal.