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View Full Version : Ancient rocks at Isua, greenland discussion



GEHFileBot
09-19-2005, 02:42 AM
This is a discussion thread for the following file:<br><br><b><a href=http://www.googleearthhacks.com/dlfile7716/Ancient-rocks-at-Isua,-greenland.htm>Ancient rocks at Isua, greenland</a></b><br><br>This overlay shows the location and geology of the ancient (c.3.81 Gyr) rocks at Isua, western Greenland<br><br><img src=http://www.googleearthhacks.com/images/new/080505/538431Clipboard03.jpg>

finnerty
09-19-2005, 02:44 AM
This is a great overlay. However, the title of 'oldest rocks on Earth' actually goes to the nearby Acasta gneisses (4.03 Ga).

http://pubs.usgs.gov/gip/geotime/age.html

Steve the geologist