Boundaries between rock layers represent catastrophes that led to mass extinction Floods formed rocks visible at Earth’s surface Young Earth

- Natural laws are constant in time and space - Invoke modern processes to explain the past (“the present is key to the past”) - Earth fundamentally the same since its formation (uniformity of configuration)

L1A Flashcards by Alissa D

Catastrophism

Boundaries between rock layers represent catastrophes that led to mass extinction
Floods formed rocks visible at Earth’s surface
Young Earth

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Uniformitarianism

Natural laws are constant in time and space
Invoke modern processes to explain the past (“the present is key to the past”)
Earth fundamentally the same since its formation (uniformity of configuration)

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L1A Flashcards

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