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Asthenosphere - Wikipedia


The asthenosphere is the highly viscous, mechanically weak and ductilely deforming region of ... The thickness of the asthenosphere depends mainly on the temperature. In some regions the asthenosphe...

How thick is the asthenosphere? | Reference.com


The asthenosphere has no exact size, but the United States Geological Survey estimates it is approximately 111.85 miles (180 kilometers) thick. It is highly ...

Earthquake Glossary - asthenosphere


The asthenosphere is the ductile part of the earth just below the lithosphere, including the upper mantle. The asthenosphere is about 180 km thick.

Earth's Crust, Lithosphere and Asthenosphere - Windows to the ...


May 21, 2008 ... Crust, the upper layer of the Earth, is not always the same. Crust under the oceans is only about 5 km thick while continental crust can be up to ...

10(h) Structure of the Earth - Physical Geography


The mantle which surrounds the core and has a thickness of 2900 kilometers. ... upper mantle, 100 to 200 kilometers below surface, is called the asthenosphere.

Earth Structure


Continental crust is variable in thickness and composition. ... The upper and lower boundaries of the asthenosphere are diffuse as they involve gradual changes ...

Crust and Mantle vs. Lithosphere and Asthenosphere


asthenosphere, and mesosphere (we usually don't discuss this last layer) represent ... usually 5-10 km thick and continental crust is 33 km thick on average .

Information about Earth's Layers - Utah Science


The oceanic crust on the other hand is only about 7 km thick and considerably ... Since the asthenosphere is more liquid than the rest of the mantle, the broken ...

mantle - National Geographic Society


Aug 11, 2015 ... The mantle is about 2900 kilometers (1802 miles) thick, and makes up a ... regions in Earth's interior: the lithosphere and the asthenosphere.

lithosphere facts, information, pictures | Encyclopedia.com articles ...


Under the oceans , the crust is only about 3–5 mi (5–10 km) thick. ... on top of the weaker, less rigid asthenosphere, which seems to be in continual motion.

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What is the thickness of the asthenosphere? | Reference.com


The asthenosphere is between 250 and 400 miles thick. It is part of the Earth known as the Upper Crust, which is defined as anything as deep as 416...

The Layers of the Earth - Planet Earth


The Earth's crust thickness is 30 km thick. The temperature ... The temperature of the lithosphere and asthenosphere is 300 to 500 degrees celsius. The mantles ...

Structure of the Earth - HyperPhysics


... of the Earth is but one half the thickness of one leaf of a thousand-page book. ... The lower level of the mantle is called the asthenosphere and it is softer and ...