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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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how many km deep is the earths mantle?
2900 km
Do continents drift slowly on earths upper mantle or earths core?
Continents drift on top of the upper mantle. The core is much further down.
How many layers in earths mantle?
there are 7 layers in earths mantle.
What is the second layer of earths?
all was the best
Earths middle layer?
the mantle
What will happen to the convection currents in the mantle if the earths interior cools down?
the convection currents will stop
What would happen to the earths plates if the mantle completely cooled down?
They'd stop moving.
What would happend to the convection currents in the mantle if earths interior eventually cooled down?
They will stop.
How far down is the earths upper mantle?
It is just beneath the lithosphere, so about 200 feet.
What is the color of the earths mantle?
the earth's mantle is brown
What is under the earths surface and in the earths crust?
mantle
Where would you be most likely to find granite in earths mantle or earths continents?
you will find it in earths mantle because it is a kind of an igneous rock
