Lithospheric controls on the formation of porphyry copper deposits: What could possibly go wrong?

2 May 2023 presentation by Dr. Hervé Rezeau, Lundin Family Endowed Chair in Economic Geology, Dept Geosciences, University of Arizona.
The 1-hour and 4-minute presentation comprises the body of the talk (48-minutes) followed by Q&A (16-minutes). A product of the Arizona Geological Society (AGS) (www.arizonageologicalsoc.org/). We thank Hexagon for providing the venue and recording this presentation. We thank the Rio Tinto Group for sponsoring this talk.

[@theotherside715]

As a hobby hard rock miner in southwest AZ this info is invaluable. Thumbs up for this excellent geology description/explanation. Wish I continued my degree at school of mines, UofA instead of physical metallurgy. More pls

[@kathykarns9829]

Did the main copper bearing intrusion somehow break off and “float up”. There are interesting examples of suddenly detached iceberg “shooters” in ice shelves at the toe of a floating glacial ice stream in Alaska n bays rising up 2-3x higher than expected. Thus we see a kind of “telescoping” event play out in minutes. The shooter then collapses under its own weight. I felt it was illustrative of what might happen when “rotation” occurs during relaxation of collision stress. I suggest the “keels” of mountain regions may be thus elevated. And so provide a “pathway” for dikes, fluid flow, breccia dikes etc. see the elevation trend along the alto Andes for comparison. Spikes from below?

[@clickfallrock]

Please don't block the slides with a view of the speaker, it is very distracting and annoying