A geologist observes glacial moraines and striations in an area that is today not glaciated. the geologist interprets those features as evidence of past glacial activity. he or she is utilizing: The principle of uniformitarianism.
The idea that the same natural rules and processes that we observe in the universe now have always been in the past and still hold true today is known as uniformitarianism, also known as the Doctrine of Uniformity or the Uniformitarian Principle.
Although many contemporary geologists no longer adhere to a rigorous gradualism, uniformitarianism has contained the gradualistic idea that "the present is the key to the past" and that geological events occur at the same rate now as they have always done.
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