Geologists have used a new technique to measure the age of cobalt-copper ore in Central Africa—showing the deposits are 150 million years younger than previously thought. The findings could lead to the discovery of more sources of cobalt around the world.

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Geologists have used a new technique to measure the age of cobalt-copper ore in Central Africa—showing the deposits are 150 million years younger than previously thought. The findings could lead to the discovery of more sources of cobalt around the world.