Publication Geological time, online edition. Version 1.2 [1]. Last updated December 11, 2000. URL http://pubs.usgs.gov/gip/geotime/time.html The Earth is very...
attests to a very old Earth. See USGS Fact Sheet 2007-3015 at http://pubs.usgs.gov/fs/2007/3015/ for ages of geologic time periods. Ages in the spiral have...
Publication Geological time, online edition. Version 1.2 [1]. Last updated December 11, 2000. URL http://pubs.usgs.gov/gip/geotime/time.html Other version:...
