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the asthenosphere

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15y ago

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Are tectonic plates made of mantle?

The solid portion of the upper mantle which behaves as a brittle solid is known as the lithospheric mantle. This part of the upper mantle along with the crust forms tectonic plates.


What is composed lithosphere?

The rigid outermost shell of a rocky planet. Here on Earth, it comprises the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater.


What is composed of lithosphere?

The rigid outermost shell of a rocky planet. Here on Earth, it comprises the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater.


Is the lower portion of the crust and the upper portion of the mantle called the core?

No, the lower portion of the crust and the upper portion of the mantle together are not called the core. The core is a separate layer found beneath the mantle, and it is divided into the outer core and inner core based on composition and properties.


Is the upper mantle part of the lithosphere or asthenosphere?

The The crust and the uppermost layer of the mantle form the lithosphere. The asthenosphere, which is still in the upper mantle, is the next layer down.


What is the mantle filled with?

The Earths mantle is filled with ferromagnesian rocks with minerals such as Olivine and Pyroxene.


What do geologists believe heats the upper mantle portion of the asthenosphere?

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What is the crust and brittle upper mantle called?

Earth's crust and brittle upper mantle is called the lithosphere.


What name is given to the plastic portion of the upper mantle of the Earth?

The plastic portion of the upper mantle of the Earth is known as the asthenosphere. It is a semi-fluid layer beneath the lithosphere that allows tectonic plate movement.


What part of the earth behaves like a brittle solid?

The crust and the upper part of the mantle are the solid part of the Earth called the lithosphere.


What part of the mantle is made of soft rock that bends like plastic.?

A portion of the upper mantle known as the asthenosphere.


Which part of earth's mantle is the most solid?

The most outer solid portion of the planet Earth is the crust.