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oceanic as it is colder; therefore denser
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What type of boundaries are subduction zones associated with?
Convergent oceanic - continental and oceanic - oceanic boundaries.
What type of fault caused the Tangshan earthquake?
the uneven heat distribution between the plate tectonics
What is formed when one tectonic plate slide under another tectonic plate?
Depends on the type of tectonic plate. If it is two continental plates, usually a mountain range will be formed and the plates will 'lock' together due to their thickness. The Indian sub-continent colliding with the eurasian plate is one example. If an oceanic plate is subducting under a continental plate an island arc can be formed or mountain range such as Japan and the Andies mountains respectively. This type is also where volcanoes will be commonly found unlike the collision of two continental plates, due to the magma formed from the subduction of the oceanic plate. If two oceanic plates collide, usually form an oceanic mountain range and lock together similar to the continental plates.
What type of earthquake was the 2011 Japanese earthquakes?
Earthquakes don't come in "types"; but there are a number of ways of how they are caused. In this case, the Japan 2011 earthquake happened when the pacific plated shifted, causing a tremendous amount of energy to be released and resulting in the earthquake and tsunami.
What are deep cuts in the ocean floor?
One type of deep cut is an oceanic trench. These are formed above subduction zones. Which are created as the result of one of the Earth's tectonic plates gradually being forced beneath another - when two tectonic plates collide, oceanic crust always becomes forced underneath continental crust because oceanic crust is denser and heavier, whereas continental crust is lighter and more buoyant. They are often ringed by parallel volcanic mountain chains. Examples of this situation include the Atacama trench & Andes mountains and the Aleutian trench & Aleutian chain. These boundaries are known as convergent or destructive plate boundaries. Another type of deep cut is the opposite of the above. This is known as a mid-ocean ridge, and this is where new oceanic crust is created (to eventually be destroyed at a subduction zone). This is a known as a divergent or constructive boundary. New ocean floor is gradually being erupted where the tectonic plate is stretched thin and the hot mantle material is able to well up and melt due to a drop in pressure. This system is not uniform, and often creates huge undersea mountain chains with valleys and peaks, showing as a tennis-ball style scar running throughout the world's oceans on maps.
Which type of plate is thicker continental or oceanic?
Continental plate.
When continental crust and oceanic crust collide what occurs?
This is referred to as a convergent plate boundary (oceanic-continental). The denser oceanic plate is forced underneath the lighter continental plate by a process called subduction.
What type of boundary forms when an oceanic plate is pushed under a continental plate?
a convergent boundary. The oceanic plate is then subducted under the continental plate because it is denser. This subduction creates earthquakes and volcanoes
What type of plate is the eurasion plate?
either continental or oceanic
Where oceanic crust collides with continental crust is the?
This type of plate boundary is a convergent boundary where subduction of the denser oceanic slab into the mantle will occur. Because of this it may also be called a destructive margin.
What is the difference between the oceanic crust and continental crust and how does this influence plate boundary interactions?
When two plates move towards one another, they form either a subduction zone or a continental collision. This depends on the nature of the plates involved. In a subduction zone, the subducting plate, which is normally a plate with oceanic crust, moves beneath the other plate, which can be made of either oceanic or continental crust. During collisions between two continental plates, large mountain ranges, such as the Himalayas are formed. Oceanic crust is a type of crust that is submerged in huge bodies of water, while continental crust is the type of crust beneath the continents. Oceanic crust is thinner but denser, while the continental crust is thicker but lighter. Whenever a continental crust and an oceanic crust meets and collides, they form a convergence zone. The oceanic crust sinks below the continental crust(subduction zone) because it is denser. As it sinks into the mantle, it becomes magma which soon rises up to the surface to stabilize the mantle, thus creating a volcano. The continental crust, being the lighter one, does not sink. It may fold and form mountains. The nature of a convergent boundary depends on the type of lithosphere in the plates that are colliding. Where a dense oceanic plate collides with a less-dense continental plate, the oceanic plate is typically thrust underneath because of the greater buoyancy of the continental lithosphere, forming a subduction zone. At the surface, the topographic expression is commonly an oceanic trench on the ocean side and a mountain range on the continental side. An example of a continental-oceanic subduction zone is the area along the western coast of South America where the oceanic Nazca Plate is being subducted beneath the continental South American Plate.
What type of mountain form because of an oceanic plate and a continental plate colliding?
Andean
Which type of mountain form because of an oceanic plate and a continental plate colliding?
Fold mountains.
What type of plate is North America?
The North American Plate is a combination of continental and oceanic plates. North America itself is continental crust.
At What type of boundary would a trench be created?
Trenches such as the Peru-Chile trench are found at destructive (also known as convergent) subductive plate margins where the denser oceanic plate is being subducted beneath the lighter continental plate. Trenches are common at subduction zones.
When an oceanic plate is pushed under a continental plate resulting in volcanic activity this type of boundary forms?
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When an oceanic plate is pushed under a continental plate resulting in volcanic activity this type of boundary forms.?
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