## When a land and ocean plate come together?

When two plates come together, it is known as a convergent boundary. 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.

## What happens when oceanic plates collide with oceanic plates?

A subduction zone is also generated when two oceanic plates collide — the older plate is forced under the younger one — and it leads to the formation of chains of volcanic islands known as island arcs.

## What happens where the ocean plates meet?

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 happens along a plate boundary when an ocean plate collides with an ocean plate?

When an ocean plate collides with another ocean plate or with a plate carrying continents, one plate will bend and slide under the other. This process is called subduction. A deep ocean trench forms at this subduction boundary. The molten rock rises through the crust and erupts at the surface of the overriding plate.

## What happens to plate A as it collides with plate B?

Answer: When the Plate A and Plate B collide, a volcanic arc forms at the continental plate edge. Explanation: Why the Plate A is the oceanic plate and Plate B is the continental leading plate?

## What happens when two oceanic plates meet in the ocean?

When two oceanic plates meet, the older plate subducts. Oceanic lithosphere is formed hot and thin at mid-ocean ridges and grows thick as more rock hardens underneath it. As it moves away from the ridge, it cools. Rocks shrink as they cool, so the plate becomes more dense and sits lower than younger, hotter plates.

## How does the movement of tectonic plates affect the Earth?

The plates fit together like puzzle pieces to make up Earth’s surface. Their movements change the planet’s features, depending on how the plates meet. Some plates are crunching together, and may form mountains. Others are splitting apart. When this occurs under the ocean, it creates new ocean floor. Some plates grind past each other.

## What happens at the ocean-ocean convergent boundary?

At an ocean-ocean convergent boundary, one of the plates (oceanic crust and lithospheric mantle) is pushed, or subducted, under the other. Often it is the older and colder plate that is denser and subducts beneath the younger and hotter plate. There is commonly an ocean trench along the boundary.

## What happens to the crust when two plates collide?

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.