what causes the movement of plate tectonics.
Answers
Answer:
The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
Explanation:
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Answer:
Gravity causes the higher plates to push away the lithosphere that is placed in the further parts of the ridge. The third force that causes the tectonic plates to move is the slab pull. This force occurs when the older plates start to sink. As the plates age, they become colder, which makes them denser than the mantle beneath them.
Explanation:
Despite its seeming solidity, the Earth is dynamic. Its shifting tectonic plates can cause earthquakes, eruptions and even change the shape of continents. Learn something of how it works below.
Structure of the Earth A conception of the Earth's structure is necessary to an understanding of plate tectonics. For general purposes, the Earth can be divided into four basic layers: the inner core, the outer core, the mantle and the crust. Despite immense temperatures, the Earth's core, composed largely of iron, is solid. The terrific amount of gravitational pressure keeps the ore from liquefying. The outer core, similar in composition to the inner, is under less pressure and therefore liquid. Next comes the mantle, which is largely solid but still capable of movement. Finally, there is the crust, the exceedingly thin skin of the planet on which humans and all other known life live. The crust is broken into plates that carry the continents and oceans.