Earliest Evidence of Plate Tectonics - Deepstash
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Earliest Evidence of Plate Tectonics

The earliest evidence of the tectonic plates was found in Greenland which was estimated to be abbout 3.8 billion years old. Covnersely, researchers have found that the tectonic plates have been active for as long as 4 billion years ago.

There have been two supercontinents: The Rodinia which happened a billion years ago while the most recent one The Pangea formed about 300 million years ago.

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Existing Plates: How Many Are There?

There are seven major plates that currently exist:

  1. North American
  2. Pacific
  3. Eurasian
  4. African
  5. Indo-Australian
  6. South American

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How It Works: Plate Tectonics

  • Like a pot boiling on a stove, the driving force behind plate tectonics is the convection in the mantle where the hot material near the Earth's core rises while the colder materials sink.
  • The geologists see it differently though. They believe it's more of a "repeated collision" an...

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Facts About Plate Tectonics

Facts About Plate Tectonics

  • The theory that states that the Earth's "outer shell" is split into huge slabs of rock we call "plates," glide over the Earth's mantle is known as the Plate Tectonics
  • Alfred Wegener proposed this theory back in 1915 when it was sti...

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About Volcanoes

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  • Most volcanoes are formed when the boundaries of our planet's tectonic plates collide and overlap, eventually sinking deep inside.
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