Table of Contents
- 1 What is it called when an oceanic and continental plate collide?
- 2 What happens when oceanic and continental plates collide quizlet?
- 3 When the oceanic plate hits a continental one the continental plate?
- 4 Why do oceanic plates dive underneath continental plates when they collide?
- 5 What is an oceanic oceanic convergent boundary?
- 6 What will happen when two continental plates collide at a convergent boundary?
- 7 What is formed when one oceanic plate moves under another?
- 8 What happens when two oceanic plates converge/meet?
- 9 What happends when two plates of the same density collide?
What is it called when an oceanic and continental plate collide?
At some convergent boundaries, an oceanic plate collides with a continental plate. Oceanic crust tends to be denser and thinner than continental crust, so the denser oceanic crust gets bent and pulled under, or subducted, beneath the lighter and thicker continental crust. This forms what is called a subduction zone.
What happens when oceanic and continental plates collide quizlet?
When two oceanic plates collide, the denser plate is subducted and some material rises upward and forms an ISLAND. What happens when two continental plates collide? The continental crust is pushed together and upward to form large MOUNTAIN ranges. Ocean floor is pushed away from a midocean ridge to form new sea floor.
When the oceanic plate hits a continental one the continental plate?
Generally, when the oceanic plate hits a continental one, the continental plate uplifts, and the oceanic plate goes beneath it or subducts. When two oceanic plates collide, the older, heavier plate usually subducts beneath the other.
What happens to the surface of the ocean when an oceanic plate moves towards another oceanic plate?
When oceanic crust converges with continental crust, the denser oceanic plate plunges beneath the continental plate. This process, called subduction, occurs at the oceanic trenches (figure 6). The entire region is known as a subduction zone. The movement of crust and magma causes earthquakes.
When a continental plate and an oceanic plate collide they can form quizlet?
When 2 continental plates collide neither sink because they both have similar density in each. They will form mountain ranges. When both a oceanic and continental collide the oceanic plate will subduct under the continental because it is more dense, a deep sea trench will usually form.
Why do oceanic plates dive underneath continental plates when they collide?
When an oceanic plate converges with a continental plate, the oceanic crust will always subduct under the continental crust; this is because oceanic crust is naturally denser. This melting leads to heat being transferred upwards and uplifting the crust, eventually developing into a volcano.
What is an oceanic oceanic convergent boundary?
At an ocean-ocean convergent boundary, one of the plates (oceanic crust and lithospheric mantle) is pushed, or subducted, under the other (Figure 4.6. 1). It mixes with the overlying mantle, and the addition of water to the hot mantle lowers the crust’s melting point and leads to the formation of magma (flux melting).
What will happen when two continental plates collide at a convergent boundary?
If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the other, a process known as subduction. The new magma (molten rock) rises and may erupt violently to form volcanoes, often building arcs of islands along the convergent boundary.
What happens in a oceanic oceanic convergence?
Oceanic – oceanic convergence In collisions between two oceanic plates, the cooler, denser oceanic lithosphere sinks beneath the warmer, less dense oceanic lithosphere. As the slab sinks deeper into the mantle, it releases water from dehydration of hydrous minerals in the oceanic crust.
What happens when two continental plates crash into each other?
When two continental plates crash into each other, they crumple and fold. The crust is forced up, and mountains form, and earthquakes happen.
What is formed when one oceanic plate moves under another?
An island arc results when one oceanic plate moves under another oceanic plate. A continental arc results when an oceanic plate moves under a continental plate. Volcanoes and volcanic activity often occur as a result of the subduction process because the subducting slab releases liquids as it moves into the extreme temperatures of the mantle layer.
What happens when two oceanic plates converge/meet?
When two oceanic plates collide, their densities help to determine the one that will appear on top of the other. And as you already know, the oceanic crust does become denser and colder when it spreads out of the mid-ocean ridge. So, when two oceanic plates conveying oceanic crust collides at a trench, the denser one will come under the less dense plate . That is what happens when oceanic plates meet.
What happends when two plates of the same density collide?
Formation convergent boundaries. A tectonic plate boundary always forms when two continental plates collide. Neither plate subducts because the crust have approximately the same density. Instead, the rocks are smashed together causing them to recrystallize due to the intense heat and pressure from the colliding plates.