# Question: What Happens When Two Tectonic Plates Collide?

## What happens when two tectonic plates move towards each other?

When two plate move towards each other they converge or come together.

The collision between two plates that are moving towards each other is called a convergent boundary.

The collision results in large damaging earthquakes.

When two continental plates converge the result is the formation of large folded mountains..

## What happens if oceanic plate continues to move downward?

Answer: As plate A continues to move downwards going to the mantle. The leading edge of plate A will melt and turns into magma. Magma rise up to the surface to form volcanoes.

## How fast do tectonic plates move?

The movement of the plates creates three types of tectonic boundaries: convergent, where plates move into one another; divergent, where plates move apart; and transform, where plates move sideways in relation to each other. They move at a rate of one to two inches (three to five centimeters) per year.

## What happens when two tectonic plates collide quizlet?

What happens when two oceanic plates collide? When two oceanic plates collide, the denser plate is subducted and some material rises upward and forms an ISLAND.

## What happens to continental crust when two continents collide?

When two plates carrying continents collide, the continental crust buckles and rocks pile up, creating towering mountain ranges. … 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.

## What would happen if Earth’s plates stopped moving?

If all plate motion stopped, Earth would be a very different place. The agent responsible for most mountains as well as volcanoes is plate tectonics, so much of the activity that pushes up new mountain ranges and creates new land from volcanic explosions would be no more.

## What causes the plates to move?

The plates can be thought of like pieces of a cracked shell that rest on the hot, molten rock of Earth’s mantle and fit snugly against one another. The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other.

## Which is the best definition of a tectonic plate?

A tectonic plate (also called lithospheric plate) is a massive, irregularly shaped slab of solid rock, generally composed of both continental and oceanic lithosphere. … Continental crust is composed of granitic rocks which are made up of relatively lightweight minerals such as quartz and feldspar.

## What is the border between two plates called?

boundaryThe border between two tectonic plates is called a boundary. All the tectonic plates are constantly moving — very slowly — around the planet, but in many different directions.

## How deep are the tectonic plates?

The crust beneath the continents, however, is much more variable in thickness, averaging about 30 kilometers (18.6 miles); under large mountain ranges it can extend to depths of up to 100 kilometers (62.1 miles). The San Andreas fault is the border between two tectonic plates—the North American Plate and Pacific Plate.

## How many tectonic plates are there?

sevenhow many tectonic plates are there? There are major, minor and micro tectonic plates. There are seven major plates: African, Antarctic, Eurasian, Indo-Australian, North American, Pacific and South American.

## What are the 4 types of tectonic plate movement?

There are four types of boundaries between tectonic plates that are defined by the movement of the plates: divergent and convergent boundaries, transform fault boundaries, and plate boundary zones.

## What happens when two oceanic plates collide?

When two oceanic plates converge, the denser plate will end up sinking below the less dense plate, leading to the formation of an oceanic subduction zone. … Whenever a subduction zone is formed, the subducted plate will end up being partially melted by the earth’s internal magma and molten.

## How thick are tectonic plates?

125km thickPlates are on average 125km thick, reaching maximum thickness below mountain ranges. Oceanic plates (50-100km) are thinner than the continental plates (up to 200km) and even thinner at the ocean ridges where the temperatures are higher.

## What are three causes of plate movement?

Convection currents, slab pull, and ridge push move Earth’s huge tectonic plates. Convection currents in the mantle are much slower than those in boiling water.

## What are the four ways tectonic plates move?

What are the major plate tectonic boundaries?Divergent: extensional; the plates move apart. Spreading ridges, basin-range.Convergent: compressional; plates move toward each other. Includes: Subduction zones and mountain building.Transform: shearing; plates slide past each other. Strike-slip motion.

## What are the 3 theories of plate tectonics?

Plates interact at three types of plate boundaries: divergent, convergent and transform. Most of the Earth’s geologic activity takes place at plate boundaries. At a divergent boundary, volcanic activity produces a mid ocean ridge and small earthquakes.