Earth: Changes Through Time

Over the past 4600 million years since its formation, the Earth has undergone many changes. From a barren planet with a molten surface constantly churned by meteorites and volcanoes, and no free oxygen in its atmosphere, the Earth has evolved into a planet with large slow-moving continents covered in vegetation that provides an oxygen-rich atmosphere.

Keywords: craton; pangaea; orogeny; greenhouse climate; epicontinental seas

Figure 1. Summary of major events in Earth history over the past 4600 million years.
close
 Further Reading
    book Cloud P (1988) Oasis in Space: Earth History from the Beginning. New York: WW Norton.
    book Prothero DR and Dott RH Jr (2001) Evolution of the Earth, 6th edn. New York: McGraw-Hill.
    book Hartmann J and Miller R (1991) The History of the Earth, An Illustrated Chronicle of an Evolving Planet. New York: Workman.
    Holland HD, Lazar B and McCaffrey J (1986) Evolution of the atmosphere and oceans. Nature 320: 27–33.
    book Nisbet EG (1987) The Young Earth, An Introduction to Archean Geology. Boston, MA: Allen and Unwin.
    book Rodgers JJW (1994) A History of the Earth. Cambridge: Cambridge University Press.
    book Stanley SM (1999) Earth System History. New York: WH Freeman.
    book Windley BF (1984) The Evolving Continents, 2nd edn. New York: Wiley.
Contact Editor close
Submit a note to the editor about this article by filling in the form below.

* Required Field

How to Cite close
Prothero, Donald R(Oct 2001) Earth: Changes Through Time. In: eLS. John Wiley & Sons Ltd, Chichester. http://www.els.net [doi: 10.1038/npg.els.0001631]