Rethinking copper deposits

Geologists have long studied porphyry copper deposits, which provide most of the world’s supply of the metal. However, two new studies suggest scientists may need to rethink how these deposits form. Learn more in my story for EARTH Magazine.

Bornite it a common copper-bearing mineral in porphyry copper deposits. (Credit: Jonathan Zander via Wikimedia Commons)
Bornite it a common copper-bearing mineral in porphyry copper deposits. (Credit: Jonathan Zander via Wikimedia Commons)
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