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How do strain rate and temperature affect plastic deformation in the mantle?
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What is the plastic-like part of the mantle?
The asthenosphere is made of soft rock and bends like plastic in the mantle.
Can an earthquake be caused by temperature?
Not by temperature variations at Earth's surface, no. However, temperature variations in Earth's mantle play a role in plate tectonics, and so can affect earthquake activity.
What are molten material in the mantle?
Yes. The mantle is composed of the plastic mantle, or the upper part, which is partially molten. The stiffer mantle is under it. it is not as molten
What layer of the mantle is most plastic or bendable?
Heat transfer by the movement of a heated fluid is called _________?
How does the subducting plate affect temperature in the asthenosphere?
Subduction results from convection in the asthenosphere. The heat from the core of the earth that is imparted to the mantle causes the mantle to convect much the wayboiling water convects in a pan on the stove. Hot mantle at the core-mantle boundary rises while cool mantle sinks, causing convection cells to form.
What is the temperature of the plastic mantle?
The temperature of the plastic mantle, or asthenosphere, is inferred to be about 1600 degrees Celsius.
How is it possible for mantle rock to flow?
Mantle rock is composed of a type of igneous rock peridotite which has a high iron and magnesium content. This rock is so hard and dense that it is not able to flow like a liquid. However due to the high temperatures and pressures that are present in the mantle it is possible for mantle rock to flow like a plastic-like material. This process is called "plastic deformation". Plastic deformation occurs when temperatures and pressures are high enough to cause the atoms in the rock to rearrange themselves. This rearrangement allows the rock to become more malleable and it is able to bend and flow like a liquid. This process is responsible for many of the changes that occur in the mantle such as convection currents and plate tectonics. The process of plastic deformation is not easily observed as it occurs deep within the Earth. However scientists have been able to determine the amount of pressure and temperature necessary to cause plastic deformation in mantle rock. It is estimated that temperatures must be at least 2000 degrees Celsius and pressures must be at least 10000 times the atmospheric pressure at sea level in order for mantle rock to flow. In summary mantle rock is composed of peridotite a type of igneous rock that is so hard and dense that it is not able to flow like a liquid. However due to the high temperatures and pressures that are present in the mantle it is possible for mantle rock to flow like a plastic-like material through a process called "plastic deformation". This process is responsible for many of the changes that occur in the mantle such as convection currents and plate tectonics. Temperatures must be at least 2000 degrees Celsius and pressures must be at least 10000 times the atmospheric pressure at sea level in order for mantle rock to flow.
A change in the temperature of the core would affect?
Movement of mantle and crust
Why do few earthquake happen in earths mantle?
Few earthquakes happen in the earths mantle do to the fact that the mantle has a folded deformation. This means that the amount of pressure on the mantle caused it to deform.
Which temperature is inferred to exist within Earths plastic mantle?
2000 celcius
Why do some earthquakes happen in the earths mantle?
because of the folded deformation
Why do seismic waves slow down in the asthenosphere?
Under the pressure and temperature conditions of the Earth's mantle, minerals can (very slowly) be deformed without cracking. This is called ductile deformation. A lot of the deformation in mantle rocks is accomplished by this mechanism. The ultimate cause for the asthenosphere to move is the gradient of temperature between the core and the surface that drives mantle convection. Hot material moves up from the lower portions of the mantle and cold material sinks down.
What conditions allow rock in the mantle to the flow?
cause it will keep going until the lava stop erupting will make the mantle stop
What is another name for plastic zone?
The plastic zone is also called the asthenosphere,because in the solid bottom part of the mantle, the temperature is sufficient to make the rock plastic, meaning, it flows.
What is the temperature at the mantle in Celsius?
Inner Mantle: The average temperature is about 3000ºC Outer Mantle: The average temperature is about 2200ºC
What is the plastic-like part of the mantle?
The asthenosphere is made of soft rock and bends like plastic in the mantle.
What is the average temperature of the mantle in Celsius?
Inner Mantle: The average temperature is about 3000ºC Outer Mantle: The average temperature is about 2200ºC
