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Study Confirms 830–820 Ma Origin of Niobium-Rich Carbonatites in Central Australia

High-resolution imaging plus isotope geochronology indicate mantle melts rose along long-lived faults during continental rifting.

Overview

  • Curtin University researchers, with University of Göttingen collaborators, dated Aileron Province carbonatites to roughly 830–820 million years ago.
  • As Rodinia began to rift, carbonatite magmas migrated from the deep mantle through pre-existing fault zones to reach the crust.
  • The rocks host significant concentrations of niobium, a critical metal used in high-strength steels and some clean-energy technologies.
  • Multi-method geochronology and high-resolution imaging disentangled more than 500 million years of overprinting to isolate the original magmatic event.
  • The peer-reviewed findings appear in Geological Magazine, detailing the deposit’s formation history and its implications for mineral exploration.