This is the cause of the movement of the tectonic plates in the lithosphere. Therefore, the movement of the half molten rocks in the asthenosphere is what causes natural disasters. The top two layers being lithosphere and asthenosphere. These are the layers that are often difficult to differentiate as they both have a part of the mantel. They have a depth of 80km to km and have various mineral contents present.
The asthenosphere is the layer below the lithosphere that consists of the uppermost weaker layer of the mantel. They are solid except for the half molten rocks that give it a semi-fluid flow and can follow all the properties of plastic. While the lithosphere is mostly solid and contains the tectonic plates that cause many natural disasters, asthenosphere contains mainly the half molten rocks that give it a fluid flow.
This fluid flow of the components of the asthenosphere is the reason for the movement of the tectonic plates. Of nearly 80 element and minerals. From the surface of the earth we stand upon down to the first km inside it is the layer of the earth that is known as Lithosphere.
Thus, the outermost layer of the earth that is visible to us in the form of the surface is called Lithosphere. It is composed of all the rocks and other solid surface that we see on the surface in the form of soil, hills, and mountains. The word Lithosphere comes from the Greek Litho that literally means a rock. This layer of the earth is also divided into two types, one that we see and walk upon and the other beneath the waters of the oceans.
Thus, there are the continental as well as oceanic layers in the form of Lithosphere. This is what we experience as an earthquake. The asthenosphere is solid upper mantle material that is so hot that it behaves plastically and can flow. The lithosphere rides on the asthenosphere. Improve this page Learn More. Skip to main content. Search for:. Reading: The Lithosphere and Asthenosphere Can you think of a solid that can flow?
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