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4. During the 1960s, scientists were already equipped with gadgets needed to explore the deep ocean. What discovery about the ocean floor is associated with the seafloor spreading?

Sagot :

Answer:

What did they discover on the ocean floor that is associated with the seafloor spreading?

The discovery of the divergent zone is probably the most reliable proof of the ongoing expansion of the seafloor.

Explanation:

The divergent zone is where the edges of two continental plates grow because of the constant upwelling of liquid earth from the Asthenosphere. When this molten earth touches the cold seawater, it begins to solidify into new seafloor which appears as ridges on both sides of the huge crevice. This process continues to no end thereby pushing the landmasses apart as well as widening the bottom of the ocean. The most famous of these divergent zones is the one located in the bottom of the Atlantic ocean known as the Mid-Atlantic Ridge.

Fact about the Mid-Atlantic Ridge:

  • They would appear like a huge mountain range in the middle of the Atlantic.
  • The Mid-Atlantic Ridge stretch from the Arctic Ocean to the southern tip of Africa.
  • It divides the North American plate from the Eurasian plate.
  • It also separates the eastern coast of South America from the Western side of Africa.
  • The Mid-Atlantic ridge is but a part of a huge geographical line that circles the earth.

What is happening here:

  1. The Atlantic ocean is gradually widening.
  2. The Pacific Ocean is getting smaller
  3. Eventually, East Asia may connect with the western coast North and South America.  

The earth has gone through many changes long before man ever knew about it, the continuous widening and shrinking of the seafloor has gone on forever because of the actions of the Earth’s convergent and divergent zones.

Click on the links for more information:

Pacific Ocean   https://brainly.ph/question/122108

What can be created by subduction zones?  https://brainly.ph/question/1631786

Tectonic plate evidence   https://brainly.ph/question/1649554  

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