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Although the higher temperatures far exceed the melting points of the mantle rocks at the surface (about 1,500 K (1,200 °C; 2,200 °F) for representative peridotite), the mantle is almost exclusively solid. [22]
The mantle is the mostly solid bulk of Earth's interior. The mantle lies between Earth's dense, super-heated core and its thin outer layer, the crust. The mantle is about 2,900 kilometers (1,802 miles) thick, and makes up a whopping 84 percent of Earth’s total volume.
State: liquid / solid. Composition: iron, oxygen, silicon, magnesium and aluminium. This layer is up to 670km below the Earth’s surface. The lower part of the upper mantle is made from both solid and melted rock (liquid), while the rock in the upper region is stiffer, because it’s cooler.
A mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices, and are generally the largest and most massive layer of the planetary body. Mantles are characteristic of planetary bodies that have undergone differentiation by density.
The structure consists of an outer silicate solid crust, a highly viscous asthenosphere, and solid mantle, a liquid outer core whose flow generates the Earth's magnetic field, and a solid inner core.
There are two sections of the mantle: 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 Outer Core
The crust is the thin outermost layer that forms Earth’s solid surface. The mantle is the viscous layer beneath the crust, extending down to the outer core. The outer core is a liquid layer of molten iron-nickel alloy that generates the Earth’s magnetic field. Finally, the inner core is a solid layer made up primarily of iron and ...
While it is predominantly solid, it behaves like a viscous fluid due to the fact that temperatures are close to the melting point in this layer.
It is the solid (more brittle) zone of the earth where earthquakes occur. The asthenosphere is the upper portion of the mantle underlying the lithosphere where heat and pressure is great enough for materials to flow slowly.
The mantle is almost entirely solid rock, but it is in constant motion, flowing very slowly. It is ultramafic in composition, meaning it has even more iron and magnesium than mafic rocks, and even less silica.