Deep time

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]

^ McPhee 1998, p. 77.
^ Palmer & Zen.
^ Kubicek 2008.
^ M. J. S. Rudwick (15 October 2014). Earth's Deep History: How It Was Discovered and Why It Matters. University of Chicago Press. pp. 68–70. ISBN 978-0-226-20393-5.
^ Braterman, Paul S. "How Science Figured Out the Age of Earth". Scientific American. Retrieved 2016-04-17.

[FOOTNOTEMcPhee199877-1] McPhee 1998, p. 77.

[FOOTNOTEPalmerZen-2] Palmer & Zen.

[FOOTNOTEKubicek2008-3] Kubicek 2008.

[Rudwick68-4] M. J. S. Rudwick (15 October 2014). Earth's Deep History: How It Was Discovered and Why It Matters. University of Chicago Press. pp. 68–70. ISBN 978-0-226-20393-5.

[5] Braterman, Paul S. "How Science Figured Out the Age of Earth". Scientific American. Retrieved 2016-04-17.

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