Latest Origin of water on Earth Stories
2008-11-27 09:44:55
Analysis of minerals in ancient magmas paints new picture of early EarthA new picture of the early Earth is emerging, including the surprising finding that plate tectonics may have started more than 4 billion years ago "” much earlier than scientists had believed, according to new research by UCLA geochemists reported Nov. 27 in the journal Nature."We are proposing that there was plate-tectonic activity in the first 500 million years of Earth's history," said geochemistry...
