However, these categories are not determined by the composition of the lithosphere. The motion at a transform fault is classified into two categories: right-lateral and left-lateral. Transform faults refer to the lateral displacement of large rock units due to the shearing motion caused by a transform boundary. #Transform plate boundary series#Transform boundaries can cause both large faults and a series of smaller associated faults. Perhaps the most famous transform boundaries, however, are those on the continental lithosphere with effects that are directly felt by nearby cities and towns. Because the surrounding rock along the ridge is hard and brittle, it accommodates these shifts in spreading rates with sliding motions. They occur near these divergent boundaries because the spreading rate changes along a ridge. Most transform boundaries are associated with the spreading spreading centers at mid-ocean ridges. Although none of these events occur at transform boundaries, they are far from boring the continuous stress that builds within the lithosphere from the sliding motion causes faulting and earthquakes. No lithosphere is destroyed or created, and mountain chains are not built at transform boundaries. Shear stress operates at transform boundaries, which involves sliding motion. This motion does not create or destroy crust and will cause earthquakes, but no volcanoes.Ī transform boundary occurs when two tectonic plates move past one another. A transform boundary causes a fault between two plates of the lithosphere, which will slide past one another.
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