The MIG (Metal Isotope Group) from Adelaide University recently published an article: “In-situ Rb–Sr dating of crystalline basement beneath the Amadeus Basin, Australia: Implications for radiogenic helium generation, migration, and extreme ⁴He accumulation”.
This work focuses on evaluating the timing of the different geological events that affected the basement underlying the Amadeus Basin using laser-based analytical techniques and integrating these results into the "system events chart" for helium (He) and hydrogen (H) generation, migration, and accumulation.
The Amadeus Basin hosts one of the world’s most extreme helium-rich systems globally (~9% He), representing a rare endmember dominated by highly radiogenic helium (⁴He: ~97%), with very low ³He/⁴He ratios (~0.03 Ra). Unli










