Asked by: Mandiaye Laas
asked in category: General Last Updated: 21st April, 2020

What is mantle convection and plate movement?

Mantle convection is the main way heat from Earth's interior is transported to its surface, and this heat escapes principally through mid-ocean ridges. Also, as tectonic plates move, continents and ocean basins open and close.

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In respect to this, what type of plate boundaries are caused by mantle convection?

Mid-Ocean Ridges: Mantle Convection and Formation of the Lithosphere. As part of the global pattern of mantle convection and lithospheric motion, mid-ocean ridges mark the boundaries where oceanic plates separate from one another.

how do convection currents move in the mantle? Convection currents in the air and sea lead to weather. Magma in the Earth's mantle moves in convection currents. The hot core heats the material above it, causing it to rise toward the crust, where it cools. The magma can't continue to rise, so it moves horizontally and sinks back down.

People also ask, what is the role of convection in plate tectonics?

Convection currents in the magma drive plate tectonics. Large convection currents in the aesthenosphere transfer heat to the surface, where plumes of less dense magma break apart the plates at the spreading centers, creating divergent plate boundaries.

What is the mantle made of?

Above the core is Earth's mantle, which is made up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals. The rocky surface layer of Earth, called the crust, is made up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium.

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