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Convergent boundaries are areas where plates move toward each other and collide. These are also known as compressional or destructive boundaries. 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 ...
Earthquakes are common along convergent boundaries. A region of high earthquake activity, the Wadati–Benioff zone, generally dips 45° and marks the subducting plate. Earthquakes will occur to a depth of 670 km (416 mi) along the Wadati-Benioff margin. [citation needed] Both compressional and extensional forces act along convergent boundaries.
Map showing Earth's principal tectonic plates and their boundaries in detail. These plates comprise the bulk of the continents and the Pacific Ocean.For purposes of this list, a major plate is any plate with an area greater than 20 million km 2 (7.7 million sq mi)
English: Physical world map in English showing the tectonic plates boundaries with their movement vectors and selected hotspots. Français : Carte physique mondiale en anglais des limites des plaques tectoniques avec leurs vecteurs de déplacement et une sélection de hotspots.
New background map using NGDC WCL data: 07:50, 10 May 2015: 4,898 × 2,472 (843 KB) 白布飘扬: Shetland microplate: base on the original source, the movement speed is unclear but the direction is there. 17:21, 1 October 2013: 4,898 × 2,472 (841 KB) Sting: Shetland microplate: movement undefined => deleting the arrow: 15:52, 6 September 2012
Plate tectonics (from Latin tectonicus, from Ancient Greek τεκτονικός (tektonikós) 'pertaining to building') is the scientific theory that Earth's lithosphere comprises a number of large tectonic plates, which have been slowly moving since 3–4 billion years ago.
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Tectonic plates are composed of the oceanic lithosphere and the thicker continental lithosphere, each topped by its own kind of crust. Along convergent plate boundaries, the process of subduction carries the edge of one plate down under the other plate and into the mantle. This process reduces the total surface area (crust) of the Earth.