Deep time
Concept of geologic time / From Wikipedia, the free encyclopedia
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For other uses, see Deep time (disambiguation).
Deep time is a term introduced and applied by John McPhee to the concept of geologic time in his book Basin and Range (1981), parts of which originally appeared in The New Yorker magazine.[1]
The philosophical concept of geological time was developed in the 18th century by Scottish geologist James Hutton;[2][3] his "system of the habitable Earth" was a deistic mechanism keeping the world eternally suitable for humans.[4] The modern concept entails huge changes over the age of the Earth which has been determined to be, after a long and complex history of developments, around 4.55 billion years.[5]