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Geothermal presure.

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Q: What causes magma to flow out of a weak spot in the earths crust?
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Related questions

What causes magma to flow upward thought the earths surface?

The tectonic plates push together thus causing magma to shoot up and rise hence an eruption


What is the term for the flow of magma through cracks in the earth's surface?

the flow of magma in eath's crust is called lava.


What can erupt to bring a lava flow to earths surface?

magma


What is the force that move the Earth's plates?

The force that causes most of the plate movement is thermal convection, where heat from the earth's interior causes currents of hot rising magma and cooler sinking magma to flow, moving the of plate the crust along with them.


What explains the movement of the earth's crust?

The earth's crust moves because the earth has tectonic plates that move because the magma under the earth's surface is constantly boiling. Since the water moves, it causes the earth's crust to move.


What causes the magma to flow out the weak spot in the earth surface?

Lava


What is the melted rock which flows out of the earths surface is called?

Magma, or pyroclastic flow.


What causes surface ocean currents to flow in a circular pattern or earths revolution earths revolutoin or earths rotation?

Gyres


Why is continental crust deeper than oceanic crust?

The oceans flow to the places where the crust is the lowest. Gravity causes them to flow downward. The mantle, below the crust, is at the same depth everywhere, so if the crust is lower, it is because it is thinner.


What natural phenomenom occurs when magma breaks through the earth crust?

A lava flow may flow over the surface from a fissure deep enough to reach the magma layer. Or, if under pressure, an eruption from a volcano.


What is the Flow of magma through the earths surface called?

I believe the answer you may be looking for is either Lava or a Volcano


How the movement of tectonic plates result in the formation of crustal features?

Magma is the molten rock below the crust, in the mantle. Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents. These currents cause the movement of the tectonic plates that make up the earth's crust.