What are tectonic plates?
The theory of plate tectonics states that the Earth’s solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet.
What are the 7 tectonic plates?
There are major and micro tectonic plates. There are seven major plates; African, Antarctica, Eurasian, Indo-Australian, North America, Pacific, and South America.
Why do they move?
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 drift.
Other info:
With this comes along three tectonic plates I’ve learned about in science. I’ve learned about divergent, convergent, and transform plate boundaries.
Divergent boundaries:
Where two plates are moving away from each other.
Convergent boundaries:
Where two plates are colliding.
Transform boundaries:
Where two plates slide past each other.
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