Home Archived April 23, 2019

Understanding Our Planet Through Chemistry

II. Understanding the Earth

IIa. History recorded in chemistry

How old is the Earth?

The question of when the Earth was formed and when various events on it occurred has long fascinated humanity. In the past, various estimates of the age of the Earth have been made using the available technology. All estimates of this type changed drastically with the modern application of radioactivity.

Previous || Contents || Next

Accessibility FOIA Privacy Policies and Notices

USAGov logo U.S. Department of the Interior | U.S. Geological Survey
URL: https://minerals.cr.usgs.gov/gips/na/under.html
Page Contact Information: CMERSC Webmaster
Page Last Modified: 22 April 2019