NSF launches $100M National Quantum and Nanotechnology Research Infrastructure program The U.S. National Science Foundation is investing up to $100 million to establish a nationwide network of open-access research facilities for quantum and nanoscale technologies, innovation, and workforce training. Through the new NSF National Quantum… Read more at nsf.gov
chuquicamata est la plus grande mine à ciel ouvert au monde ,on exploite le cuivre et le molybdéne . elle se situe au Nord de Chile dans le desert d'Atakama. ce-dissous un article qui traite le sujet de la géologie de Chuquicamata ,le téléchargement est gratuit ,juste suivie les instructions : ℹ️ Méthode de téléchargement 1.cliquer sur télécharger 2.attender 5 seconds puis cliquer sur passer l'annonce ⬇️ 3.le telechargement se déroule automatiquement Geology of the Chuquicamata Mine: A Progress Report GUILLERMO OSSANDÓN C., Abstract Chuquicamata, in northern Chile, is the world’s greatest copper orebody. It was controlled, from the initial intrusions (probably at 36–33 Ma) through mineralization (last major hydrothermal event at 31 Ma) to postmineral brecciation and offset, by the West fault system. East porphyry, West porphyry, Banco porphyry, and Fine Texture porphyry make up the ...