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Which part of the earth's mantle can flow like a thick liquid?
The asthenosphere, located in the upper part of the mantle, can flow like a thick liquid due to high temperatures and pressures that allow for the movement of rock over long periods of time.
What rock can flow like a liquid?
A rock that can flow like a liquid is called a type of rock called "viscous rock," such as granite or basalt. These rocks exhibit a plastic-like behavior at high temperatures and pressures, allowing them to flow over long periods of time. This flow is known as creep.
Why do scientists think that the mantle is semi soild and acts like a liquid?
Scientists think that the mantle is semi-solid and acts like a liquid because of its ability to flow slowly over long periods of time. This behavior is called plastic deformation, which allows the mantle to flow in response to stress and heat. The mantle's semi-solid nature is also supported by seismic data and laboratory experiments on rock samples.
How thick is the inner mantle?
The inner mantle is approximately 2,900 kilometers thick. It is composed of solid rock that behaves like a very thick paste over long periods of time.
What is the plasticity of the mantle?
The mantle exhibits a degree of plasticity known as ductile deformation, which allows it to flow slowly over long periods of time. This plasticity is essential for the movement of tectonic plates and the convection currents within the Earth's mantle, which drive plate tectonics.
