Alaska Subscriber. Answer: A triplane fracture extends through the transverse (growth plate), sagittal (epiphysis), and coronal (distal tibial metaphysis) planes of the distal tibia. It disrupts the tibial plafond intra-articularly.
Convergent Boundaries. Introduction. Convergent boundaries form when two crustal plates are colliding. The plates form a subduction zone with one plate descending beneath the other plate. One of the converging plates must be an oceanic plate to form a subduction zone.When two continental plates collide mountain ranges like the Himalayas form.Trenches form at subduction zones, USGS. Subduction zone. The subducting plate is being recycled as it begins to melt at about 100 kilometers.The water soaked oceanic plate forms molten rock that collects in magma chambers.ubduction zone. The subducting plate is being recycled as it begins to melt at about 100 kilometers. The water soaked oceanic plate forms molten rock that collects in magma chambers.
Convergent boundaries are plate boundaries formed when two tectonic plates crush together. The denser of the two plates goes under the other! For example, if two oceanic plates (which are tectonic plates found in the ocean) collide, the denser of the two plates goes under the other and forms an oceanic trench. If an oceanic plate and a continental plate collide (a continental plate is a tectonic plate that holds land/continents), the oceanic plate will go under the continental plate and goes into the mantle. If two continental plates collide, the crust thickens and is forced to create landforms such as mountains.