Magma rises into and through the other plate, solidifying into new crust. If one of the colliding plates is topped with oceanic crust, it is forced down into the mantle where it begins to melt. Plate Boundary Types Divergent boundary (Constructive) Plate boundary zones: broad belts in which boundaries are not well defined and the effects of plate interaction are unclear.Transform boundaries: where crust is neither produced nor destroyed as the plates slide horizontally past each other.Convergent boundaries: where crust is destroyed as one plate dives under another.Divergent boundaries: where new crust is generated as the plates pull away from each other.Convergent boundaries - where crust is destroyed as one plate dives under another. There are four types of plate boundaries: Divergent boundaries - where new crust is generated as the plates pull away from each other. “Read More about: What is Plate Tectonics? “ What are the 4 types of plate boundary? Most geologic activities, including volcanoes, earthquakes, and mountain building, take place at plate boundaries. Plate boundaries are the edges where two plates meet. In contrast to convergent and divergent boundaries, crust is cracked and broken at transform margins, but is not created or destroyed.This image shows the three main types of plate boundaries: divergent, convergent, and transform. Earthquakes are common along these faults. 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. Diversity, Equity, Inclusion, and Accessibility.
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