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When the mantle is heated the magma rises because?
When it is heated it becomes less dense (i.e. lighter). The more dense (i.e. heavier) magma sinks while the less dense magma rises to the top. It will eventually cool again causing a convection current within the mantle.
mantle?
semi solid , rocky , and very hot layer
What is the layer after the mantle?
# 0- 40 Crust # 40- 400 Upper mantle # 400- 650 Transition region # 650-2700 Lower mantle # 2700-2890 D'' layer # 2890-5150 Outer core # 5150-6378 Inner core So basically the transition region then the others
What is the relationship between the mantle and the asthenosphere?
The asthenosphere is a layer within the upper mantle. It is a more ductile and partially molten region of the mantle that allows for the movement of tectonic plates above it. The mantle, which includes the asthenosphere, is the layer of the Earth located between the crust and the core.
What happens when the mantle gets hotter?
When the mantle gets hotter, it becomes more fluid and less viscous, causing it to flow more easily. This increased flow can lead to the movement of tectonic plates and the creation of volcanic activity as magma rises to the surface. Additionally, higher temperatures in the mantle can affect the density of the material and impact convection currents within the Earth's interior.
What are the layers of the Earth in order starting at the outermost layer and going inward Core Mantle layer with more convection Moho barrier Mantle layer with less convection?
1st-moho barrier2nd-mantle layer with more convection3rd-mantle layer with less convection4th-core
What is the most expansive layer of the?
The largest layer is the mantle, or more specifically, the upper mantle.
Do convection currents form in the mantle when heated materials become more dense?
Actually, heated materials are less dense. When heat is applied to a substance such as liquid, it becomes less dense. It is this less dense and heated material that rises because it weighs less. The part of the mantle that is more dense would be any substance that is cooling and is sinking down.
Which layer is with its characteristic?
answer Mantle: Convection here leads to earthquakes Crust: Ranges from 6 km to 70 km thick Core: Has a liquid and solid layer Moho Barrier: Separates the crust and mantle The core has a liquid layer and a solid layer. The mantle has convection cells that lead to earthquakes. The Moho Barrier separates the mantle and the crust. The crust is the thinnest layer, ranging from about 6 km to 70 km in thickness
What is a brief description of the mantle?
A solid layer made of iron and a nicel
When the mantle is heated the magma rises because?
When it is heated it becomes less dense (i.e. lighter). The more dense (i.e. heavier) magma sinks while the less dense magma rises to the top. It will eventually cool again causing a convection current within the mantle.
What causes the convection currents in the mantle?
Convection currents in the mantle are caused by the heat generated from the decay of radioactive isotopes in the Earth's interior. This heat causes the mantle material to become less dense and rise, then cool and become more dense, leading to a continuous cycle of heat transfer and movement in the mantle.
What are the main features of the Earth's mantle?
The Earth's mantle is a layer of hot, solid rock between the crust and the core. It is composed of silicate minerals rich in iron and magnesium, and is responsible for convection currents that drive plate tectonics. The mantle's temperature and pressure conditions vary with depth, with the upper mantle being cooler and more rigid compared to the lower mantle.
mantle?
semi solid , rocky , and very hot layer
What causes mantle convection?
Heating from the Earth's core drives convection in the upper mantle. This convection is extremely slow; the speed with which material in the Earth's crust spreads from the mid-ocean ridges is of the order of several cm per year. Nevertheless, it is evident that the same forces which drive convection in the atmosphere and in the ocean are present in the "solid" earth as well. Mantle convection is the slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior of the Earth to the surface. Mantle convection is the slow creeping motion of Earth's solid silicate mantle caused by convection currents carrying heat from the interior of the Earth to the surface.
inner core?
the layer of the earth just below the mantle mode of more soild material
Does mantle material rise in convection currents because heated materials become more dense?
no
