SYDNEY -- Anglo-Australian mining giant Rio Tinto will invest $900 million in a joint venture with Chilean state-owned ...

An initial mineral resource estimate shows that the Filo del Sol deposit high in the Argentine Andes likely contains five ...

In the Andes Mountains along the Argentina-Chile border, a massive deposit of copper, gold, and silver – described as one of ...

A device involving solar panels and a gel produces substantial amounts of water in one of the world’s driest deserts.