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How hot is the astenosphere?

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Anonymous

13y ago
Updated: 8/17/2019

The temperature of the Asthenosphere is 1,600 degrees C.

The asthenosphere is the layer of Earth that lies at a depth 6050 mi (10050 km) beneath Earth's surface. It was first named in 1914 by the British geologist J. Barrell, who divided Earth's overall structure into three major sections: the lithosphere, or outer layer of rock-like material; the asthenosphere; and the centrosphere, or central part of the planet. The asthenosphere gets its name from the Greek word for weak, asthenis, because of the relatively fragile nature of the materials of which it is made. It lies in the upper portion of Earth's structure traditionally known as the mantle.

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13y ago

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Is Earth's mantle hot?

A common definition of the lithosphere-astenosphere boundary is a thermal one. The astenosphere begins when 1300°C are reached. The lithosphere (containing the crust and the lithospheric mantle) is thus cooler than 1300°C but the lower portion of the lithosphere is still very hot (maybe 500-900°C or so). From the asthenosphere down towards the core the temperature keeps increasing and at the core the mantle has an estimated temperature of 4000°C.


What is the chemical compound of the asthenosphere?

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What best describes the material that makes up earths astenosphere?

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How are convection currents astenosphere and lithospheric plates related?

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How does the material of the asthenosphere differ from the material of the lithoshere?

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Where do convection currents take place in the earth?

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What are the 3 sections in the mantle?

The mantle is divided into the upper mantle, transition zone, and lower mantle. The upper mantle is beneath the lithosphere, the transition zone lies between the upper and lower mantle, and the lower mantle extends to the outer core.


How thick is the astenosphere?

The asthenosphere is approximately 100-200 kilometers thick beneath the Earth's crust. It is a semi-plastic layer of the mantle that lies below the lithosphere and plays a key role in plate tectonics and mantle convection.


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