0
Where under the surface of the earth lithosphere would one expect a convection current directed towards the surface?
Wiki User
∙ 10y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
What is the relatively soft layer of rock below the lithosphere?
The softer layer below the lithosphere is the asthenosphere. The asthenosphere begins at a depth of approximately 150 km. It has convection currents that arise from the heating and subsequent rising of material from the lower asthenosphere. These convection currents drive the movement of lithospheric plates at the surface, and are the cause of tectonic activity.
What might happen on earth surface if magma rises in a convection current?
Most convection currents exist in the mantle, the layer below the Earth's crust. As the semi-molten rock heats up, it rises closer to the surface as magma and hence cools on the earth surface to form rocks.
What is the main cause of surface currents in earth's ocean?
I think that the whether that hits the water
What activates a convection current starting a flow of fluid?
What activates a convection current, starting the flow of a fluid? A. cold temperatures at the north pole B. heated liquids at the earth's surface C. iron-rich rocks in the mantle D. temperature differences in the mantle
Which layer of the Earth is made up of plate tectonics?
The crust. These plates of the earth's surface/crust slowly move over the magma in the earth because of convection and other forces. The theory of these plates moving is known as 'plate tectonics'.
How do convection currents in the mantle effect lithosphere movement?
Convection currents rotate in the Lithosphere, which causes the surface of the Earth to move.
What process drives the lithosphere plates across the surface of earth?
The lower mantle convection
Why does the lithosphere constantly keep changing?
the lithosphere is the solid upper part of the mantle and the crust, which are spilt up into plates on the earth surface, which are constantly moving. at destructive plate boundaries the plates can get subducted and "recycled" into the mantle, hence lithosphere is destroyed. at mid ocean ridges new crust (lithopshere) is constantly being made. this all leads to the dynamic and continuous cycles of lithosphere being destroyed and created, hence continually changing.
An increase in wind causes this current to increase What type of current is it?
Convection is the process that causes warm air to rise and cold air to sink. As such, the winds caused by this process are called convection currents.
What is the convection current hypothesis?
The convection current hypothesis supposes that convection currents in the Earth's Mantel (the zone below the surface/crust and above the Earth's core) cause the movement of the tectonic plates (plates that make up the surface/crust of the Earth and shift/move on a grand time scale).
What is the relatively soft layer of rock below the lithosphere?
The softer layer below the lithosphere is the asthenosphere. The asthenosphere begins at a depth of approximately 150 km. It has convection currents that arise from the heating and subsequent rising of material from the lower asthenosphere. These convection currents drive the movement of lithospheric plates at the surface, and are the cause of tectonic activity.
How does the earths crust move?
It gets a free ride on the moving surface of a mantle convection current.
Why wave depend on the sun?
From wind (convection current)by sun heat by steering from the surface of the water
How do convection currents affect the lithosphere?
Convection currents in the asthenosphere helps form subduction zones at convergent boundaries and ridges at divergent boundaries. This slow and continuous convection causes the plates on earth's crust to move.
Density causes hot plastic-like rock to be forced upward towards the surface to cool and then sink. This cycle is called a current?
convection current
What is solid part of earth's surface called?
The lithosphere.
How does convection current contribute to eutrophication?
Some of the substances that give rise to eutrophication in a system naturally settle to the bottom. However, convection currents can bring them closer to the surface again.
