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Hot, softer upper mantle

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Which layer of earth is the athenosphere part of?

The asthenosphere is part of the upper mantle, which lies beneath the Earth's lithosphere. It is a semi-fluid layer of the mantle that allows the lithospheric plates to move and float on top of it.


What TYPE of rock is asthensphere?

The asthenosphere is not a type of rock, but rather a layer in the Earth's mantle. It consists of partially melted rock that behaves as a plastic-like material, allowing tectonic plates to move on top of it.


What is the structures of the layers of the earth?

The Earth has three main layers: the core (inner and outer core), the mantle, and the crust. The core is composed mostly of iron and nickel, the mantle is made up of solid rock that can flow over long periods of time, and the crust is the outermost layer where we live, made up of solid rock that floats on the semi-fluid mantle.


Why is it that the solid crust stays a float on the athenosphere?

The solid crust floats on the asthenosphere because it is less dense than the underlying semi-solid asthenosphere. This buoyancy is due to the difference in densities between the materials, with the less dense crust able to "float" on the more dense asthenosphere.


What is the temperature of athenosphere?

The temperature of the asthenosphere ranges from about 1300 to 2400 degrees Fahrenheit (700 to 1300 degrees Celsius). This layer of the Earth's mantle is partially molten, allowing it to flow and contribute to plate tectonics. The actual temperature can vary depending on the depth within the asthenosphere.