How well do you know the history of Earth's age and geological theories?

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Questions and Answers

¿Qué teoría sugirió que la Tierra fue moldeada por procesos geológicos lentos y graduales?

  • La teoría de la Uniformitarismo (correct)
  • La teoría del Catastrofismo
  • La teoría de la Evolución
  • La teoría de la Creación

¿Cómo se estimó la edad de la Tierra en el siglo XIX?

  • Usando modelos físicos y cálculos (correct)
  • Usando la radiometría
  • Usando la datación por carbono
  • Usando la datación por uranio-plomo

¿Cuál es la estimación actual de la edad de la Tierra?

  • 2 mil millones de años
  • 3.8 mil millones de años
  • 4.47 mil millones de años (correct)
  • 100 millones de años

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Study Notes

  • Charles Lyell's book "Principles of Geology" supported the theory of Uniformitarianism.
  • Uniformitarianism suggested that the Earth was shaped by slow and gradual geological processes.
  • This was opposed to the Catastrophism theory, which suggested that the Earth was shaped by major disasters.
  • In the 19th century, various estimations of the Earth's age were made using physical models and calculations.
  • These estimations ranged from tens of millions to 100 million years.
  • In the 20th century, radiometric dating provided a new method for determining the age of rocks.
  • The initial estimation of the Earth's age using radiometric dating was 2 billion years.
  • The current estimation of the Earth's age is 4.47 billion years.
  • The oldest fossils are estimated to be 3.8 billion years old.
  • The new information about the Earth's age led to new theories about geological processes.

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