What Type Of Plate Boundaries Are Caused By Mantle Convection?

What may happen if there were no convection currents in the mantle?

Answer 1: If all convection currents on Earth stopped that would be a natural disaster.

The amount of heat which the sun radiates at us sets the temperature of the Earth’s surface.

So if convection completely stopped the high and low temperatures would force people and animals to move away from the poles and equator..

What are the effects of convection currents on earth mantle?

Convection also plays a role in the movement of deep ocean waters and contributes to oceanic currents. Inside Earth, the convection of mantle material is thought to cause the movement of the overriding crustal plates, resulting in events such as earthquakes and volcanic eruptions.

What are the two main metals in the Earth’s core?

Iron and nickel are the two most abundant metals found in the outer core.

Why is mantle convection important?

This flow, called mantle convection, is an important method of heat transport within the Earth. Mantle convection is the driving mechanism for plate tectonics, which is the process ultimately responsible for producing earthquakes, mountain ranges, and volcanos on Earth.

What are three types of convection?

Everyday Examples of ConvectionBoiling water – The heat passes from the burner into the pot, heating the water at the bottom. … Radiator – Puts warm air out at the top and draws in cooler air at the bottom.Steaming cup of hot tea – The steam is showing heat being transfered into the air.More items…

What causes the mantle to flow?

The mantle flows because of convection currents that are caused by very hot material in the mantle rising, cooling, and then sinking. This circular pattern causes the mantle to flow.

What is the mantle responsible for?

The Mantle Earth’s mantle plays an important role in the evolution of the crust and provides the thermal and mechanical driving forces for plate tectonics. Heat liberated by the core is transferred into the mantle where most of it (>90%) is convected through the mantle to the base of the lithosphere.

What will happen to the convection currents in the mantle of Earth’s interior eventually cools down?

Explanation: Convection currents within the Earth’s mantle are caused by hot material rising upwards, cooling, then dropping back toward the core. … If the interior of the Earth were to cool enough for convection currents to stop, then the motion of the plates would cease, and the Earth would become geologically dead.

How does convection occur in the mantle?

Convection Currents in Earth. In Earth’s mantle, large amounts of heat are transferred by convection currents, as shown in Figure 10. Heat from the core and the mantle itself causes convection currents in the mantle. … The hot rock eventually cools and sinks back through the mantle.

What temperatures are associated with mantle convection?

The temperature of the mantle varies greatly, from 1000° Celsius (1832° Fahrenheit) near its boundary with the crust, to 3700° Celsius (6692° Fahrenheit) near its boundary with the core. In the mantle, heat and pressure generally increase with depth. The geothermal gradient is a measurement of this increase.

What drives the slow movement of the plates and the convection in the mantle?

Ridge-Push – the cause of oceanic lithosphere sliding down to the sides of the oceanic ridge under the pull of gravity. What drives the slow movement of the plates and the convection in the mantle? … The new lithospheric plates form at the oceanic crust while the older lithospheric plates form at the continental margins.

What are two factors that cause convection?

What causes convection currents? Heating and cooling of the fluid, changes in the fluid’s density, and the force of gravity combine to set convection currents in motion.

In which layer does mantle convection occur?

Lithosphere. Mantle convection occurs in the: Asthenosphere.

Geologists have hypothesized that the movement of tectonic plates is related to convection currents in the earth’s mantle. … Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth’s crust.

How fast do convection currents in the mantle move?

Based on observations of the rates at which the surface of Earth moves, geologists estimate the mantle convectively flows at rates of several centimeters a year. The heat driving mantle convection has three sources.

What is a destructive force caused by convection in the mantle?

Answer: convergent margins. Explanation: Mantle convection causes the phenomenon of plate tectonics on the earth surface. From plate tectonics, we understand that the earth surface is broken into several giant slabs made up of the crust and upper part of the mantle.

Why is convection current important?

Convection currents play a role in the circulation of fluids. Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks. … Convection also plays a role in the movement of deep ocean waters and contributes to oceanic currents.

What is the main heat source for mantle convection?

3.1 Mantle Plumes. Mantle convection is driven by three fundamental processes: heat loss from the core (about 20%), internal heating from radioactive decay (about 80%), and cooling from above (sinking of lithospheric slabs) (Condie, 2001).