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The distinction between the crust and mantle is primarily on the basis of a difference in?
composition — the crust is primarily composed of lighter, silicate minerals like granite and basalt, while the mantle is composed of denser minerals like peridotite. This compositional difference contributes to variations in density, temperature, and behaviour between the crust and mantle layers of the Earth.
Where is the density greater at the mantle?
The density is greater at the lower mantle due to the increase in pressure and temperature as you move towards the Earth's core. This denser material sinks while the less dense material rises, driving the process of mantle convection that helps drive plate tectonics.
What is the upper mantle's density?
The upper mantle has a density ranging from approximately 3.3 to 3.4 grams per cubic centimeter. It is composed of mostly solid rock materials, such as peridotite, which contribute to its overall density.
Which statement correctly describes the density of Earth's mantle compared to the density of Earths core?
The density of Earth's mantle is lower than the density of Earth's core. The mantle is composed of solid rock while the core is made of mostly iron and nickel, which are denser materials. This difference in density contributes to the layering of the Earth's structure.
Why does the earth's crust sit on top of the mantel?
The outer core is composed of molten iron and nickel, which is much denser than the material that composes the mantle. So, in a sense, the mantle floats on top of the core just as the crust floats on top of the mantle.
Does the crust and mantle have the same density?
No, the crust and mantle do not have the same density. The Earth's crust is less dense, primarily composed of lighter silicate minerals, while the mantle is denser due to its composition of heavier silicate and magnesium-rich minerals. Typically, the continental crust has a density of about 2.7 g/cm³, whereas the mantle density ranges from about 3.3 to 5.7 g/cm³, depending on depth and composition.
How do changes in heat energy affect the density of earths mantle material?
How do changes in heat energy affect the density of earths mantle material
Why does the shadow zone exists?
The mantle and core are composed of the same material.APEX
Where is the density of the material greater in the mantle?
The density of the mantle increases with depth due to the increase in pressure and temperature. The lower mantle, in particular the part known as the D'' layer, is where the density of the material is greater due to the higher pressure and temperatures compared to the upper mantle.
The distinction between the crust and mantle is primarily on the basis of a difference in?
composition — the crust is primarily composed of lighter, silicate minerals like granite and basalt, while the mantle is composed of denser minerals like peridotite. This compositional difference contributes to variations in density, temperature, and behaviour between the crust and mantle layers of the Earth.
What is the layer that is composed of low density material called peridotite?
The layer composed of low-density material known as peridotite is primarily found in the Earth's mantle. Peridotite is a dense, ultramafic rock that is rich in olivine and is the main component of the upper mantle, which extends from the base of the crust to about 410 kilometers deep. This layer plays a crucial role in tectonic processes and the movement of the Earth's lithospheric plates.
What is the density of Io?
The density of Io, one of Jupiter's moons, is about 3.5 g/cm^3, which is similar to the density of Earth's mantle. This high density suggests that Io is primarily composed of rocky material with little to no ice present on its surface.
What are molten material in the mantle?
Yes. The mantle is composed of the plastic mantle, or the upper part, which is partially molten. The stiffer mantle is under it. it is not as molten
Where is the density greater at the mantle?
The density is greater at the lower mantle due to the increase in pressure and temperature as you move towards the Earth's core. This denser material sinks while the less dense material rises, driving the process of mantle convection that helps drive plate tectonics.
Does the shadow zone exist?
The mantle and core are composed of different material
Where is the density of the mantle material greater at point A or point B?
at point A
How does the density of each layer change g?
The density of each layer of the Earth generally increases with depth. The crust has the lowest density, composed mainly of lighter materials like silicates. Below the crust, the mantle has a higher density due to the presence of denser silicate minerals under high pressure. The core, primarily composed of iron and nickel, has the highest density, reflecting the extreme conditions and heavier elements found at that depth.
