Plate Tectonics and Ocean Basin Evolution Quiz
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Questions and Answers

What major event marked the beginning of the latest phase of ocean basin growth and consumption?

  • The opening of the Southern Ocean
  • The breakup of the supercontinent Pangea (correct)
  • The opening of the Tethys seaway
  • The shrinking of the Pacific basin

    • Where is the oldest known oceanic crust located?

  • Indian Ocean
  • North Atlantic
  • Western equatorial Pacific (correct)
  • Gulf of Mexico

    • How many different seafloor spreading centers were involved in the formation of the oldest known seafloor in the western equatorial Pacific?

  • Not mentioned in the text
  • Exactly two
  • At least five (correct)
  • More than ten

    • When was the oldest seafloor in the Indian Ocean formed?

    <p>Around 165-145 million years ago</p> Signup and view all the answers

    What caused the opening of the Gulf of Mexico?

    <p>North America and Eurasia drifting away from Africa and South America</p> Signup and view all the answers

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