Archive

Wed 7th December 2022 @ 12:00 nn, 312.222 and online via Webex (meeting #: 2654 563 1797 and password: 6VwJRMFiM95) Abstract: Mineral exploration is challenging in much of Australia with mineral resource potential frequently concealed beneath regolith. Heavy minerals, such as zircon, spinels, and cassiterite, are widely used by mineral explorers and can provide information on geochemistry, alteration and […]

Wed 30th November 2022 @ 12:00 nn, 312.222 and online via Webex (meeting #: 2655 735 2039 and password: rZQ77e7XU8W) Abstract: Detrital zircons collected from Earth`s modern rivers provide a representative sample to study the evolution of the continental crust on a global scale. This is because most of the eroded material in modern rivers has experienced long-time sediment-sediment […]

Wed 23rd November 2022 @ 12:00 nn, 312.222 and online via Webex (meeting #: 2652 439 4990 and password: JGf36T2PPgx) Abstract: The volatile contents of silicic crustal magmas inform models for volcanism, degassing behaviour, and hydrothermal ore formation. Volatile saturation pressures of phenocryst-hosted melt inclusions are generally restricted to late-stage, shallow magmas that have typically undergone substantial, ascent-driven degassing of […]

Wed 2nd November 2022 @ 12:00 nn, 312.222 and online via Webex (meeting #: 2650 711 1383 and password: 2dpBV3Xe2T3) Abstract: Based on the crustal record of magmatism and metamorphism, Earth likely evolved from a single-lid (sluggish or squishy) to a mobile-lid tectonic mode during the late-Archean–early-Proterozoic. Time-constrained data show a strong temporal clustering of metamorphism associated with periods […]