Rich ore deposits linked to ancient atmosphere
Saturday, November 21, 2009 - 05:42
in Earth & Climate
Much of our planet's mineral wealth was deposited billions of years ago when Earth's chemical cycles were different from today's. Using geochemical clues from rocks nearly 3 billion years old, a group of scientists including Andrey Bekker and Doug Rumble from the Carnegie Institution have made the surprising discovery that the creation of economically important nickel ore deposits was linked to sulphur in the ancient oxygen-poor atmosphere...