Formation and Break-Up of Pangaea
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Questions and Answers

Which event marked the beginning of the break-up of Pangaea?

  • Collision of Laurasia and Baltica
  • Pangaea existed until around 200 Ma (correct)
  • The separation of India from Gondwana
  • The formation of the Himalayas
  • What was the primary result of the collision between India and Eurasia?

  • Separation of Gondwanaland and Laurasia
  • Closure of the Iapetus Sea
  • Creation of the Atlantic Ocean
  • Formation of the Himalayas (correct)
  • During which geological period did the continents reach their current positions?

  • Tertiary Period
  • Late Carboniferous
  • Quaternary Period (correct)
  • Triassic Period
  • Which supercontinent existed around the South Pole during the late Cambrian period?

    <p>Gondwana</p> Signup and view all the answers

    What significant geological process occurred from the late Carboniferous to the Triassic period?

    <p>Continuous continental drift</p> Signup and view all the answers

    What phenomenon caused the opening of the Atlantic Ocean?

    <p>Separation of Gondwana and Laurasia</p> Signup and view all the answers

    What key event took place during the mid-Ordovician Period?

    <p>Laurasia collided with Baltica</p> Signup and view all the answers

    Which statement is true regarding the formation of the North American continent?

    <p>It formed by the late Carboniferous period.</p> Signup and view all the answers

    Study Notes

    Formation of Continents

    • The Gondwana Supercontinent, including Baltica, Siberia, and Laurasia, existed around the South Pole during the late Cambrian period (514 Ma).
    • During the mid-Ordovician Period (458 Ma), Laurasia collided with Baltica, closing the Iapetus Sea. 
    • These collisions resulted in the pre-Pangaea continent during the early Devonian period (390 Ma).
    • The North American continent formed by the late Carboniferous (306 Ma).
    • By the Triassic Period (255-210 Ma), Pangaea existed.
    • Pangaea began to break apart from 210-180 Ma.
    • The breakup of Pangaea continued into the Late Cretaceous period, creating larger oceans.
    • Continental drift proceeded into the Tertiary Period.
    • Continents reached their current positions during the Quaternary period.

    Pangaea's Break-Up

    • The present-day continents were part of the supercontinent Pangaea, existing until approximately 200 Ma.
    • Around 160 Ma, Pangaea split into two large landmasses: Gondwanaland and Laurasia. 
    • The subcontinent of India moved northward and separated from Gondwana around 140 Ma.
    • India collided with Eurasia, initiating the formation of the Himalayan mountain range.
    • Australia separated from Antarctica around 100 Ma, further breaking Gondwana apart.
    • The separation of Gondwana and Laurasia led to the opening of the Atlantic Ocean.

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    Description

    Explore the fascinating history of the formation and break-up of the supercontinent Pangaea. This quiz covers key events from the late Cambrian to the Quaternary period, including the collisions of ancient continents and the eventual drift that shaped today's geography.

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