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Earth's mantle is a rocky shell about 2,890 km (1,800 mi) thick that constitutes about 84 percent of Earth's volume. Two main zones are distinguished in the upper mantle: the inner asthenosphere composed of flowing rock in the state of plasticity, about 200 km thick, and the lowermost part of the lithosphere, composed of rigid rock, about 50 to 120 km thick. A thin crust, the upper part of the lithosphere, surrounds the mantle and is about 5 to 75 km thick. The mantle is divided into sections which are based upon results from seismology. These layers (and their depths) are the following: the upper mantle (starting at the Moho, or base of the crust around 7 to 35 km, downward to 410 km), the transition zone (410-660 km), the lower mantle (660-2891 km), and in the bottom of the latter region there is the anomalous D" layer with a variable thickness (on average ~200 km thick)

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The ideal depth for a fireplace mantle is typically around 6 to 8 inches.


What two layers is the mantle divided into?

The mantle is divided into the upper mantle and the lower mantle. The upper mantle lies directly beneath the Earth's crust and extends to a depth of about 410 miles. The lower mantle extends from the bottom of the upper mantle to a depth of about 1,800 miles.


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What is the depth of upper mantle?

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What part of Earth's mantle is near the outer core?

The Earth comprises:-Continental crust: depth of 0-75 kilometres: Oceanic crust: depth of 0-10 kilometresUpper mantle: depth of 10-400 kilometresTransition region: depth of 400-650 kilometresLower mantle: depth of 650-2,890 kilometresD" layer: depth of 2,700-2,890 kilometresOuter core: depth of 2,890-5,150 kilometresInner core: depth of 5,150-6,370 kilometres


How is the temperature and pressure in the Earth's mantle related to the depth of the mantle?

The degree of temperature and exertion of pressure by the molten materials (magma) within the mantle is directly proportional to its depth. This means that, the deeper you go down the mantle the higher the degree of temperature and pressure exerted.


What is the thickness of the core the mantle and the crust?

From the information I am providing here you can work this out.Inner core: depth of 5,150-6,370 kilometresOuter core: depth of 2,890-5,150 kilometresLower mantle: depth of 650-2,890 kilometresTransition region: depth of 400-650 kilometresUpper mantle: depth of 10-400 kilometresOceanic crust: depth of 0-10 kilometres, Continental crust: depth of 0-75 kilometres


What two parts of the earths Mantle?

The two main parts of the Earth's mantle are the upper mantle and the lower mantle. The upper mantle sits below the Earth's crust and extends to a depth of about 410 miles, while the lower mantle extends from about 410 miles to 1,800 miles depth.


What is the depth of the earths mantle?

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What is the average depth of the upper mantle?

The upper mantle extends from the base of the Earth's crust down to a depth of about 410 kilometers (approximately 255 miles). It lies above the transition zone, which separates the upper mantle from the lower mantle. The upper mantle is primarily composed of silicate minerals and is involved in tectonic processes, including plate tectonics and mantle convection.


How hot is the mantle in Fahrenheit?

The mantle of the Earth can reach temperatures between 1,292°F to 7,652°F, depending on the depth and location within the mantle.