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The primary force that motivates seafloor drift is rising magma at the ocean rifts. As the magma rises it flows off to the side (volcanos can only get so high before their vertical weight stops further rising and forces basal magma off to the side.)

Why does magma rise?

Magma rises because it is hot and fluid. Hot ANYTHING is less dense than cold ANYTHING and will float up.

Why is magma hot?

The material at the earth's core contains unstable neucleotides (unstable neucleotides are everywhere) and when they decay they release heat. Being at the Earths core this heat has no where to go. The mass of the earth above it is like a huge insulating blanket so the centre of the earth keeps its heat and gets hotter and hotter until the rock at the core turns into magma and floats up.

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βˆ™ 13y ago
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βˆ™ 12y ago

This is causes by the convectional movement in the mantle.

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The proper answer is thermal convection

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Abigail Fletes

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Why?

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βˆ™ 12y ago

convection currents

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Thermal convection

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earthquake

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Q: Whats the primary force that causes the seafloor to spread and the continents to drift?
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Related questions

What primary force that causes the seafloor to spread and continents to drift?

Geothermal Drift.


What is a seventeen letter word for a primary force that causes the seafloor to spread and continents to drift?

thermal convection


What was the primary force that causes the seafloor to spread and continents to drift?

The primary force driving seafloor spreading and continental drift is mantle convection. Heat from Earth's core causes the mantle to circulate, creating convection currents that move tectonic plates, leading to the spreading of the seafloor and movement of continents.


What is the primary force that cause the seafloor to spread and continental to drift?

The primary force that causes the seafloor to spread and continents to drift is plate tectonics. This process is driven by the movement of molten rock in the Earth's mantle, which generates forces that push apart tectonic plates, leading to seafloor spreading and continental drift.


The primary source that causes the seafloor to spread and continents to drift?

In the middle of the ocean is a rift where the ocean floor squeezes out lava and pushes the ocean plates apart.


How Does Seafloor Spreading Effect Continental Drift?

the primary force that causes the seaffloor to spread and contienents to drift


What is the primary force that causes the continents to drift?

thermal convection is the primary force that cause the sea floor to spread


What causes the seafloor to spread?

rising molten magma


What is the primary force that causes the sea floor to spread and continents to drift?

Radiologyinfotation


The primary force that causes the seafloor to spread and continents to drift?

The primary force behind seafloor spreading and continental drift is convection currents in the Earth's mantle. These currents move the tectonic plates above them, causing them to either spread apart or collide. The spreading of seafloor and the shifting of continents are part of the larger process of plate tectonics.


Do plate tectonics work by subduction?

no magma riseing thur gaps in plate causes them to move called seafloor spread


What is the primary force that causes the sea floor to spread and continents to drift 17 letters long?

The primary force that causes the sea floor to spread and continents to drift is called "plate tectonics." This geological process involves the movement of the Earth's lithosphere (made up of tectonic plates) on the semi-fluid asthenosphere below, driven by convection currents in the mantle.