The Crust And The Upper Mantle Together Form The - Web the lithosphere is the outermost layer of earth (including the crust and upper mantle) where the rock is hard, rigid, and brittle. Web the lithosphere is the outermost layer of earth, composed of the crust and the brittle part of the upper mantle. The term lithosphere is derived from the greek words lithos, meaning stone, and. This is a lava flow from a basaltic eruption. Web it includes the upper mantle and both the continental and oceanic crust. The upper mantle, which is more rigid and behaves elastically on short time scales, and the lower mantle, which is solid but flows on geological timescales. All volcanically produced rock is igneous ( figure 8.6 ). Figure 8.6 formation of igneous rock as liquid lava cools and freezes. Together they are called the lithosphere, the sphere of rock. The asthenosphere is below that and is where the rock is hot, ductile, and slowly circulating.
Web it includes the upper mantle and both the continental and oceanic crust. Web the lithosphere is the outermost layer of earth, composed of the crust and the brittle part of the upper mantle. Web the uppermost layer of the mantle and the crust tend to act together as a rigid shell. The asthenosphere is below that and is where the rock is hot, ductile, and slowly circulating. All volcanically produced rock is igneous ( figure 8.6 ). The upper mantle, which is more rigid and behaves elastically on short time scales, and the lower mantle, which is solid but flows on geological timescales. The mantle’s convective motions break the lithosphere into plates and move them around the surface of the planet. These are both igneous rock, the term used for any rock that has cooled from a molten state. The term lithosphere is derived from the greek words lithos, meaning stone, and. Together they are called the lithosphere, the sphere of rock. Web the lithosphere is the outermost layer of earth (including the crust and upper mantle) where the rock is hard, rigid, and brittle. There are two sections of the mantle: Figure 8.6 formation of igneous rock as liquid lava cools and freezes. This is a lava flow from a basaltic eruption. Web beneath the crust lies the mantle, extending to a depth of about 2,900 km. The lower level of the mantle is called the asthenosphere and it is softer and weaker, particularly in its upper portion where a small amount of melting can occur. Web earth’s crust is largely made up of oceanic basalt and continental granite. It contains silicate rocks that are rich in iron and magnesium. These plates may move away from, move by, or collide with each other.