#Fossilized fish could indicate rich deposits of valuable rare-earth metals
“#Fossilized fish could indicate rich deposits of valuable rare-earth metals” 34.5 million years ago, geological conditions boosted fish populations responsible for REY deposits. Credit: 2020 Ohta et al. Rare metals crucial to green industries turn out to have a surprising origin. Ancient global climate change and certain kinds of undersea geology drove fish populations to…