Ancient Origins Tour IRAQ

Ancient Origins Tour IRAQ Mobile

ocean crust

Geologists think Earth was once a water world.         Source: Credit: peangdao / Adobe Stock

Geologists Determine Early Earth Was a 'Water World'

The Earth of 3.2 billion years ago was a "water world" of submerged continents, geologists say after analyzing oxygen isotope data from ancient ocean crust that's now exposed on land in Australia...