Earth’s first continents emerged from the ocean 700m years earlier than thought
by Donna Lu from on (#5RP7Q)
Ancient rock forms suggest world's first stable cratons rose above sea level more than 3bn years ago
The Earth's first continents rose out of the ocean 700m years earlier than previously thought, a new analysis of ancient rocks suggests.
Researchers who have studied rock sediments in eastern India believe the discovery could explain an increase in oxygen in the atmosphere, and the formation of glaciers, during that period of Earth's history.
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