Berthoud 241/ Zoom, Thursday, November 10, 2022
Abstract: Porphyry Cu-Au deposits are associated with granitic intrusions formed from hydrous and oxidized magmas. Such magmas produce minerals with distinct compositions. Zircon is one of such minerals, and its chemical composition from economic porphyry Cu-Au deposits show high Ce, weak Eu anomalies and low ratios of middle to heavy REEs. Zircon is chemically and physically sturdy to be used in regional exploration. However, zircon from different terranes show that its fertile characteristics are not universal. In addition, the chemical composition can be similar among barren and mineralized rocks in one district. These results indicate fundamental knowledge of area geology is essential for the successful use of indicator minerals.
This lecture is scheduled in a hybrid format. If you would like to join the meeting please:
Join from PC, Mac, Linux, iOS or Android: https://mines.zoom.us/j/93704362845?pwd=OCtkMTI5c0R1WTNFWmxRYk5sdjFhdz09
The Van Tuyl lectures are scheduled at 4-5pm in BE 241/ Zoom (hybrid format), and after the lecture there will be a get-together from 5-6pm in BE 243 with pizza and sodas.