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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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What will happen if the flow of hot rock in earths mantle if the planets core eventually cools?
The flow of hot rock in earths mantle will stop and Earth's magnetic field will disappear
What features form a hot spot?
A hot spot is in earths mantle.a hot spot is an area where material from deep within the mantle rises and then melts, forming magma and volcano forms above a hot spot when magma erupts and reaches the surface.
How many layers in earths mantle?
there are 7 layers in earths mantle.
A very long lived magma source located deep in the mantle is called?
The term hot spot is used to describe a very long-lived magma source located deep in the mantle. J. Tuzo Wilson is credited with having originated the concept of hot spots.
How does hot spot form?
A hot spot is formed on a point of the earths surface where strong upward convection currents or plumes of hot magma in the upper mantle push up below the plates of the lithosphere causing volcanic activity. no it doesn'twhen the mantle is weak
How is the mixture of cornstarch and water different from the Earths Mantle?
the earths mantle is very hot were cornstarch is not hot at all
How is the mixture of cornstarch and water differ from the earths mantle?
the earths mantle is very hot were cornstarch is not hot at all
Is it hot in the earths mantle?
Decay of radioactive elements in the mantle heats it.
how many km deep is the earths mantle?
2900 km
How is the mixture of cornstarch and water different from the Earth's mantle?
the earths mantle is very hot were cornstarch is not hot at all
How is the mixture of cornstarch and water differ from Earth's mantle?
the earths mantle is very hot were cornstarch is not hot at all
What will happen if the flow of hot rock in earths mantle if the planets core eventually cools?
The flow of hot rock in earths mantle will stop and Earth's magnetic field will disappear
What is the composition and approximate thickness of the mantle?
Earths mantle is less dense and very hot. The mantle is 2885km thick.
Is the earths lower mantle hot?
the average temperature for the Earth's lower mantle is 5400 degrees
What features form a hot spot?
A hot spot is in earths mantle.a hot spot is an area where material from deep within the mantle rises and then melts, forming magma and volcano forms above a hot spot when magma erupts and reaches the surface.
Where is a region where hot rocks extend from deep within the mantle?
a hot spot :)
What Layer of hot and solid material between the crust and Earths core?
It is the Mantle.
