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What is the similarities and differences between oceanic-oceanic and continental-continental convergent boundaries?
Both oceanic-oceanic and continental-continental convergent boundaries involve the collision of tectonic plates, leading to geological features such as mountains and earthquakes. In oceanic-oceanic convergence, one oceanic plate subducts beneath another, often creating deep ocean trenches and volcanic island arcs. In contrast, continental-continental convergence occurs when two continental plates collide, resulting in the formation of extensive mountain ranges, like the Himalayas, without significant subduction. The main difference lies in the types of plates involved and the resulting geological features.
What happens when oceanic and continental plates collide?
When oceanic and continental plates collide, the oceanic plate is usually forced under the continental plate in a process called subduction. This can result in the formation of mountain ranges on the continental plate and can lead to the creation of volcanic arcs. The collision can also cause earthquakes and tsunamis.
How do volcano's form when oceanic and continental plates collide?
Mountains form where continental and oceanic plates collide by the actions of the plates upon one another. Often one plate pushes up and over the other one, and the upper one creates a row of mountains.
Which kind of crust is usually destroyed by subduction?
Oceanic crust is usually destroyed by subduction. This occurs when one tectonic plate, typically consisting of denser oceanic crust, is forced beneath another plate, often continental crust. As the oceanic plate subducts into the mantle, it melts and is recycled, leading to geological phenomena such as volcanic activity and the formation of deep ocean trenches.
What happens to the ocean floor comes into contact with a continental plate?
When the ocean floor comes into contact with a continental plate, subduction often occurs if the oceanic plate is denser. The oceanic plate may slide beneath the continental plate, leading to the formation of deep ocean trenches and volcanic activity. This subduction process can result in geological phenomena such as earthquakes and the creation of mountain ranges on the continent. Over time, sediment and material from the ocean floor can also accumulate at the boundary, influencing the geology of the continental plate.
What is the similarities and differences between oceanic-oceanic and continental-continental convergent boundaries?
Both oceanic-oceanic and continental-continental convergent boundaries involve the collision of tectonic plates, leading to geological features such as mountains and earthquakes. In oceanic-oceanic convergence, one oceanic plate subducts beneath another, often creating deep ocean trenches and volcanic island arcs. In contrast, continental-continental convergence occurs when two continental plates collide, resulting in the formation of extensive mountain ranges, like the Himalayas, without significant subduction. The main difference lies in the types of plates involved and the resulting geological features.
What happens when oceanic and continental plates collide?
When oceanic and continental plates collide, the oceanic plate is usually forced under the continental plate in a process called subduction. This can result in the formation of mountain ranges on the continental plate and can lead to the creation of volcanic arcs. The collision can also cause earthquakes and tsunamis.
What do earthquakes often occur along?
The edge of the oceanic and continental plates.
What is the effect when a oceanic plate meets a continental plate?
the oceanic plate subducts under the continental plate and then melts in the mantle and often will create volcanos along the conitinental plate.\
How do volcano's form when oceanic and continental plates collide?
Mountains form where continental and oceanic plates collide by the actions of the plates upon one another. Often one plate pushes up and over the other one, and the upper one creates a row of mountains.
What is the effect when an oceanic plate meets a continental plate?
When an oceanic plate meets a continental plate, the oceanic plate is usually forced beneath the continental plate in a process called subduction. This can lead to the formation of deep-sea trenches, volcanic arcs, and earthquakes along the boundary between the two plates.
Do active continental margins have a continental rise?
No, active continental margins typically do not have a continental rise. Instead, they often have a steep continental slope that descends into a deep oceanic trench due to tectonic activity. Continental rises are found at passive continental margins where there is minimal tectonic activity.
Where would you be most likely to find a boundary between a continental and an oceanic plate?
You would be most likely to find a boundary between a continental and an oceanic plate along a convergent boundary, where the denser oceanic plate subducts beneath the less dense continental plate. This often leads to the formation of deep-sea trenches and volcanic activity.
Where does subduction most often occur?
Subduction only occurs on convergent plate boundaries, which means that the two plates are colliding. Subduction is basically the sinking of one plate below another. This happens when an oceanic plate and a continental plate collide, and the more dense oceanic plate filled with more mafic rock types (with magnesium/iron and less silica) slide under the less dense continental crust.
What is the result when continental plates meet oceanic plates?
If the plates are moving toward each other, the more dense oceanic plate will subduct underneath the less dense continental plate. Mountain ranges and volcanism may result as the water saturated subducting oceanic crust creates molten rock which attempts to rise to the surface.
What does oceanic plates mean?
Oceanic plates are sections of the Earth's lithosphere that form the bedrock beneath the world's oceans. These plates are typically denser and younger than continental plates, and they are constantly moving due to the process of plate tectonics. Subduction zones are often found at the boundaries where oceanic plates meet continental plates.
A location on Earth where each type of plate boundary is present?
There are three types of convergent boundaries: oceanic-oceanic, oceanic-continental, and continental-continental. An example of continental-continental is the San Andreas Fault in California. An example of oceanic-continental is the Peru-Chile Trench. An example of oceanic-oceanic is almost anywhere in the ocean. Because the tectonic plates are continuously moving, although they may be moving slowly, new boundaries are formed often. Thus, oceanic-oceanic boundaries are constantly forming. A specific example would be in the western Pacific Ocean. There is a tangle of arcs in the Indian Ocean; there's also the Caribbean and South Sandwich Island arcs.
