Define the term lithosphere and its context to the earth

lithosphere

define the term lithosphere and its context to the earth

The lithosphere is the solid, outer part of the Earth, including the brittle upper portion of the mantle and the crust.

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Skip to main content Skip to table of contents. Encyclopedia of Solid Earth Geophysics Edition. Contents Search. Lithosphere, Continental. Reference work entry First Online: 27 August How to cite.

This lists the logos of programs or partners of NG Education which have provided or contributed the content on this page. Leveled by. The lithosphere is far less ductile than the asthenosphere. There are two types of lithosphere: oceanic lithosphere and continental lithosphere. Most tectonic activity takes place at the boundaries of these plates, where they may collide, tear apart, or slide against each other. Thermal energy makes the rocks of the lithosphere more elastic. The lithosphere also interacts with the atmosphere, hydrosphere, and cryosphere to influence temperature differences on Earth.

A lithosphere is the rigid, outermost shell of a terrestrial-type planet, or natural satellite, that is defined by its rigid mechanical properties. On Earth, it is composed of the crust and the portion of the upper mantle that by Joseph Barrell, who wrote a series of papers about the concept and introduced the term " lithosphere".
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The lithosphere is the outermost 'sphere' of the solid Earth, consisting of the crust and the upper part of the mantle. The lithosphere is largely important because it is the area that the biosphere the living things on earth inhabit and live upon. If it weren't for the tectonic plates of the lithosphere there would be no change on Earth. Tectonic plates shift due to convection currents lower down in the mantle, and this can cause the formation of mountains, the eruption of volcanoes, and earthquakes. While this can be devastating in the short-run, long term benefits are the formation of new plant life, the creation of new habitats and encouraging adaptation. It is also the source of almost all of our resources, and is rich in elements like iron, aluminium, calcium, copper and magnesium, which humans have used for tools and machinery for millennia. When the biosphere interacts with the lithosphere, organic compounds can become buried in the crust, and dug up as oil, coal or natural gas that we can use for fuels.



What is the lithosphere and why is it important?

Lithosphere, Continental

On Earth , it is composed of the crust and the portion of the upper mantle that behaves elastically on time scales of thousands of years or greater. The outermost shell of a rocky planet, the crust, is defined on the basis of its chemistry and mineralogy. Earth's lithosphere includes the crust and the uppermost mantle, which constitute the hard and rigid outer layer of the Earth. The lithosphere is subdivided into tectonic plates. The uppermost part of the lithosphere that chemically reacts to the atmosphere , hydrosphere , and biosphere through the soil forming process is called the pedosphere.

German meteorologist Alfred Wegener is often credited as the first to develop a theory of plate tectonics, in the form of continental drift. Scientists discovered later that Pangea fragmented early in the Jurassic Period. The heat source is thought to be the decay of radioactive elements. How this convection propels the plates is poorly understood. Some geologists argue that upwelling magma at spreading centres pushes the plates, whereas others argue that the weight of a portion of a subducting plate one that is forced beneath another may pull the rest of the plate along.

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3 thoughts on “Define the term lithosphere and its context to the earth

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