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Convection Currents: The difference in temperature between the upper and the
lower mantle creates these currents that causes magma
to rise up through the mantle and out the crust.
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∙ 11y ago
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∙ 14y agoPlate tectonics (which includes sea-floor spreading and subduction) is caused by convection currents of hot, putty-like rock in the mantle which deliver Earth's interior heat to the surface of the planet.
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∙ 9y agoSea-floor spreading occurs at the mid ocean ridge where new oceanic crust is formed; continental drift causes sea floor spreading.
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∙ 11y agotectonic plates
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∙ 12y agoi have a boner pleeze do it <3 Claire
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∙ 13y agoconvection currents
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∙ 13y agoerosion
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What happens in sea-floor spreading?
under water volcanoes move the oceanic plates and spread them
What causes continental plates to move?
the continental plates are caused when silicon,silica and dioxid combined together making the plates split and then it causes the plates to move.
How does sea-floor spreading provide a way for continents to move?
because if the sea-floor is moving it will probably will move a chunk of land that could be part of a continent the land at the bottom of the ocean is being spread across, and is taking space up. the continents are on tectonic plates, and need to go some where and move away.
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.
What is the force that causes plates to move sideways past each other?
Tension is the force that causes plates to move sideways past each other. This can cause built up stress that releases suddenly and causes earthquakes.
What happens in sea-floor spreading?
under water volcanoes move the oceanic plates and spread them
What happens in sea floor spreading?
under water volcanoes move the oceanic plates and spread them
What in the mantle is the force that causes the plates to move slowly over the crust?
sea floor spreadong
Why does the ocean floor spread apart at the ridge?
Because as tectonic plates move away from each other, the ocean floor spreads apart and fills the gap.
What is the crack in the ocean floor in which earth rises?
those are tecktonic plates which are delicate.when they move crackes occur. when tecktonic plates move under water it creates viberations which causes tsunamis.
What causes continental plates to move?
the continental plates are caused when silicon,silica and dioxid combined together making the plates split and then it causes the plates to move.
How does sea floor spreading make the continents move?
Under the oceanic crust is the layer of the earth called the mantle. This layer is moving rock that is very, very hot! As the hot material in the mantle pushes up through the crust in the sea floor, it cools and becomes new crust as it pushes out (spreads) the sea floor. This movement in the plates causes other plates (continental and oceanic) to move as well. This is how sea floor spreading causes continents to move.
What causes your plates to move?
convection currents!
What causes the plates to move that make an earthquake?
transform boundaries
What happens when the Earth's crust splits apart and forms a valley?
It causes what we call "sea-floor spreading." Sea-floor spreading is the process in which the ocean floor is extended when two plates move apart. As the plates move apart, the rocks break and form a crack between the plates. Earthquakes occur along the plate boundary. Magma rises through the cracks and seeps out onto the ocean floor like a long, thin, undersea volcano.
How sea floor spreading provides a mechanism by which continents move?
The fact that plates move apart means that the plates will carry anything.
The movement of the ocean floor on either side of a midocean ridge is best known as?
it is known as sea floor spreading. this is when the oceanic plates diverge or move apart which causes the magma from the mantle to rise forming new sea floor.
