Melanie Finch - A mechanism for ore deposit formation during tectonic switching

Join us this week with the brilliant Melanie Finch from James Cook University! She researches how and why hydrothermal ore deposits form in shear zones using numerical modelling combined with extensive field work and microstructural analysis, focussing on North Queensland mineral deposits. So don't miss this session where she'll be chatting with us about a mechanism for ore deposit formation during tectonic switching.

[@thomassimonton8503]

Thank you for sharing you explain it very clearly. Wonderful video thanks again.

[@ebrahimnesro8968]

Only mineral exploration geologist appreciate the sweet test of this work and the presentation. Thank you very much for the presentation. I would like to see in future a presentation with a real examples from field photos.

[@robertmoye7565]

This is absolutely brilliant and methodical research that addresses a critical series of questions in the origin of shear zone hosted mineralization. Thank you.

[@AvanaVana]

Awesome work and presentation. At 33:20 the presenter makes a fascinating point-when we look for/at outcrops we bring selection biases along because often we are trying to “read” the rocks. Like written language, our pattern-matching brains seek out the words-clear chunks of meaning amidst a wall of text that may otherwise consist solely of gibberish. In outcrops we look for the clearest evidence, the type sections, the textbook examples, and anything that most clearly relates to whatever hypothesis is being tested. We look for the best preserved, clearest signs of shearing in rocks, for example, tending to see less clear or more complicated structures as “muddied”, x weak, ill-defined, indeterminate, or impenetrable. Yet as this presenter shows, there is a lot of value in examining with equal rigor these kinds of rocks that maybe aren’t as pretty, clear, or illustrative.

[@galihpriyadi5644]

What a detail explanation, thanks 👍🏻

[@deanwilliams6217]

Very interesting talk, thank you for presenting. I live and have worked extensively in Uruguay, South America. We have examples of ultra mylonite shear zones ranging to three km in width, easily observed in airborne regional aeromagnetic surveys. I have observe quartz latter structures in these, too bad it is so far away I would love to show them to you.