Prospecting for copper with machine learning and zircons

Zircons are common, hardy minerals that can be found in rocks up to 4 billion years old. Their structure and texture can reflect the conditions in which they formed, earning them a reputation as nature's time capsules. And ...

Study: Machu Picchu older than expected

Machu Picchu, the famous 15th-century Inca site in southern Peru, is up to several decades older than previously thought, according to a new study led by Yale archaeologist Richard Burger.

Peru's Quelccaya ice cap could meet its demise by mid-2050s

If warming trends continue, Quelccaya, which until recently was the world's largest tropical ice cap, will have reached a state of irreversible retreat by the mid-2050s, according to a new study led by University at Albany ...

Chile battling to save a favorite clam

Long one of the country's favorite seafoods, Chile's macha clam has become a victim of its own popularity, with over-exploitation forcing authorities to ban clam fishing in all but a few areas to help stocks recover.

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