ocean ridge
Convection in the mantle occurs due to the heat generated from radioactive decay and the residual heat from the Earth's formation. This heat causes the mantle material to become less dense, leading to upward movement. As the material cools near the surface, it becomes denser and sinks back down, creating a circular motion of convection currents.
The driving force for the upward movement of warm molten rock in the mantle is primarily buoyancy. As molten rock is less dense than the surrounding solid rock, it rises due to its buoyancy forces. Additionally, convective currents within the mantle, driven by heat from Earth's core, also play a role in the movement of molten rock.
A hot spot is formed on a point of the earths surface where strong upward convection currents or plumes of hot magma in the upper mantle push up below the plates of the lithosphere causing volcanic activity. no it doesn'twhen the mantle is weak
An upward moving current of air is called an updraft.
The rock of the upper mantle known as the asthenosphere is plastic-like but not molten. It acts like a conveyor belt, moving heat from Earth's interior upward, and cooled material downward in a big loop. New crust is created where mantle material reaches the surface at places called mid-ocean ridges. Older, colder oceanic crust is subducted and drawn into the mantle, completing the loop.
Convection. E2020
warmer material will move upward were it cools then fall back to the bottom so it can start the cycle (convection current) once again
warmer material will move upward were it cools then fall back to the bottom so it can start the cycle (convection current) once again
Convection in the mantle occurs due to the heat generated from radioactive decay and the residual heat from the Earth's formation. This heat causes the mantle material to become less dense, leading to upward movement. As the material cools near the surface, it becomes denser and sinks back down, creating a circular motion of convection currents.
The driving force for the upward movement of warm molten rock in the mantle is primarily buoyancy. As molten rock is less dense than the surrounding solid rock, it rises due to its buoyancy forces. Additionally, convective currents within the mantle, driven by heat from Earth's core, also play a role in the movement of molten rock.
The mantle gets energy to move in convection currents from the heat generated by the radioactive decay of elements within the Earth's interior. This heat causes the mantle material to become less dense, leading to its upward movement. The cooler, denser material then sinks back down, completing the convection cycle.
convection current
convection current
The force that pushes heated rock upward is typically convection currents in the mantle. As rock near the Earth's core heats up, it becomes less dense and rises towards the surface. This movement creates pressure that pushes the rock upward.
Convection currents move in upward direction
A hot spot is formed on a point of the earths surface where strong upward convection currents or plumes of hot magma in the upper mantle push up below the plates of the lithosphere causing volcanic activity. no it doesn'twhen the mantle is weak
The convection currents are a result of heat from the interior of the Earth. The rock of the upper mantle known as the asthenosphere is plastic-like but not molten. It acts like a conveyor belt, moving heat from Earth's interior upward, and cooled material downward in a big loop. New crust is created where mantle material reaches the surface at places called mid-ocean ridges. Older, colder oceanic crust is subducted and drawn into the mantle, completing the loop.