![]() ![]() In contrast to convergent and divergent boundaries, crust is cracked and broken at transform margins, but is not created or destroyed. Earthquakes are common along these faults. This video discusses the characteristics of transform plate boundaries where plates slide past each other. Constructive plate boundary is one which two plates slide past one another thus neither creating nor destroying continental landmass. Transform plate boundaries link the other two types of boundaries, for example, 'transforming' the motion of a divergent plate boundary into the motion of a convergent boundary. Rocks that line the boundary are pulverized as the plates grind along, creating a linear fault valley or undersea canyon. Natural or human-made structures that cross a transform boundary are offset - split into pieces and carried in opposite directions. One of the most famous transform plate boundaries occurs at the San Andreas fault zone, which extends underwater. Two plates sliding past each other forms a transform plate boundary. Thus, at convergent boundaries, continental crust is created and oceanic crust is destroyed. Magma rises into and through the other plate, solidifying into granite, the rock that makes up the continents. The Pacific Ring of Fire is an example of a convergent plate boundary.Īt convergent plate boundaries, oceanic crust is often forced down into the mantle where it begins to melt. A chain of volcanoes often forms parallel to convergent plate boundaries and powerful earthquakes are common along these boundaries. The impact of the colliding plates can cause the edges of one or both plates to buckle up into a mountain ranges or one of the plates may bend down into a deep seafloor trench. When two plates come together, it is known as a convergent boundary. The Mid-Atlantic Ridge is an example of divergent plate boundaries. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface, solidifying to create new oceanic crust. The Earth’s lithosphere, which includes the crust and upper mantle, is made up of a series of pieces, or tectonic plates, that move slowly over time.Ī divergent boundary occurs when two tectonic plates move away from each other. This image shows the three main types of plate boundaries: divergent, convergent, and transform. No two transform boundaries are geologically similar. A plate boundary ends abruptly when it connects to another boundary creating a transform boundary.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |