The solid component of earth is called Lithosphere. Hence the layer lining the continents floor is called as granite layer.
It averages 100 kilometers in thickness.
Structure and Composition of Lithosphere - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. The average composition is granite, which is much less dense than the mafic igneous rocks of the oceanic crust. Life on the Earth has been evolving since 3.5 billion years ago. What Are the Elements in the Lithosphere? The lithosphere is broken into large pieces called plates, which are made up of either seafloor lithosphere (mostly basalt) or continental lithosphere (less dense rocks, like granite). The lithosphere is Earth's outermost layer, composed of rocks in the crust and upper mantle that behave as brittle solids. The structure of the lithosphere has a relatively well-known composition. The lithosphere encompasses the very top of the mantle above the asthenosphere as well as the overlying crust.
The parts of the crust that contain the world’s oceans are very different from the parts that form the continents. The eight commonly occurring elements that are found in Earth's lithosphere include oxygen, silicon, calcium, sodium, magnesium, aluminum, potassium and iron. But instead, it is made up of several layers.
crust, mantle, outer core and inner core. The crust, which forms part of the lithosphere, contains around 80 chemical elements that are present in varying amounts in approximately 2,000 minerals and compounds. Earth's lithosphere encompasses rock that forms the surface layer of the crust and extends below to the beginning of the mantle. Rocks and upper mantle.
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. Because our Earth has got every ingredient for the life to emerge. It consists of different layers viz. The lithosphere is made up of all the hard and solid land mass on the earth’s surface, the semi-solid rocks (molten materials) underneath the earth crust, and the liquid rocks in the inner core of the earth. The surface of the lithosphere is uneven as it is characterized by various landform features. According to the estimation made by Clarke and Washington, the lithosphere consists of 95% igneous rocks, 4% shale 0.75% sandstone, and 0.25% limestone (the metamorphic rocks being the altered equivalents of one or other of these rocks). It is the outermost rigid unit of life. It is composed of different types of rocks which, as a whole, has the density and composition of granite.
The lithosphere, or sphere of rock, is made up primarily of granitic and basaltic rock. Our Earth is not a solid piece of rock, like an iron ball. Composition of the Earth. In comparison to the hot, fluid asthenosphere below, the lithosphere is cool and rigid, and rather than one continuous “rind” comes broken into a jigsaw pattern of lithospheric (or tectonic) plates. The lithosphere is Earth's outermost layer, composed of rocks in the crust and upper mantle that behave as brittle solids. A lithosphere is the rigid, outermost shell on Earth.