If the two plates that meet at a convergent plate boundary both are of oceanic crust, the older, denser plate will subduct beneath the less dense plate. ... The older plate subducts into a trench, resulting in earthquakes . Melting of mantle material creates volcanoes at the subduction zone.
What is subduction at a convergent boundary?
Subduction. Where tectonic plates converge, the one with thin oceanic crust subducts beneath the one capped by thick continental crust . A subduction zone consists of material scraped off the ocean floor near the coast (accretionary wedge) and a chain of volcanoes farther inland (volcanic arc).
Which of the following occurs at a convergent subduction boundary?
At convergent plate boundaries, oceanic crust is often forced down into the mantle where it begins to melt. Magma rises into and through the other plate, solidifying into granite, the rock that makes up the continents. Thus, at convergent boundaries, continental crust is created and oceanic crust is destroyed.
What is an example of a convergent subduction boundary?
Examples of ocean-continent convergent boundaries are subduction of the Nazca Plate under South America (which has created the Andes Mountains and the Peru Trench) and subduction of the Juan de Fuca Plate under North America (creating the Cascade Range).
What activity occurs at a convergent boundary?
Tectonics. Convergent plate boundaries are locations where lithospheric plates are moving towards one another. The plate collisions that occur in these areas can produce earthquakes, volcanic activity, and crustal deformation .
What are some examples of convergent boundaries?
The Pacific Ring of Fire is an example of a convergent plate boundary. At convergent plate boundaries, oceanic crust is often forced down into the mantle where it begins to melt. Magma rises into and through the other plate, solidifying into granite, the rock that makes up the continents.
What landforms are created by convergent boundaries?
Deep ocean trenches, volcanoes, island arcs, submarine mountain ranges, and fault lines are examples of features that can form along plate tectonic boundaries. Volcanoes are one kind of feature that forms along convergent plate boundaries, where two tectonic plates collide and one moves beneath the other.
Do convergent boundaries form mountains?
Mountains are usually formed at what are called convergent plate boundaries , meaning a boundary at which two plates are moving towards one another. ... Sometimes, the two tectonic plates press up against each other, causing the land to lift into mountainous forms as the plates continue to collide.
Where is a convergent boundary located?
In the ocean basins, convergent plate margins are marked by deep trenches in the sea floor. The convergent plate boundaries that occur on continents are the collisional mountain belts .
Do convergent boundaries cause volcanoes?
Destructive, or convergent, plate boundaries are where the tectonic plates are moving towards each other. Volcanoes form here in two settings where either oceanic plate descends below another oceanic plate or an oceanic plate descends below a continental plate.
What are three types of convergent boundaries answers?
There are three types of convergent boundaries: Oceanic-Continental Convergence . Oceanic-Oceanic Convergence. Continental-Continental Convergence.
What is a real life example of a divergent boundary?
Divergent boundaries occur where two plates move apart from each other. This happens at the mid-ocean ridges, where seafloor spreading and volcanic activity continuously add new oceanic crust to the oceanic plates on both sides. Examples are the Mid-Atlantic Ridge and East Pacific Rise .
What is an example of a modern convergent boundary?
Modern examples of these two boundaries are the East African Rift (1) and the Red Sea (2) . Figure 3 is an example of a convergent plate boundary. In this case, oceanic lithosphere subducts beneath continental lithosphere. The old oceanic plate is destroyed in the subduction zone.
What are the similarities between convergent divergent and transform boundaries?
The similarities are that a boundary of any kind marks the line between two tectonic plates. Similarities between divergent and convergent boundaries include magma or lava flows, formation of new topographic features and re-shaping of landmasses .
What is the difference between convergent boundary and divergent boundary?
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.
Which of the following describes a convergent boundary?
A tectonic boundary where two plates are moving toward each other . If the two plates are of equal density, they usually push up against each other, forming a mountain chain. If they are of unequal density, one plate usually sinks beneath the other in a subduction zone.
