A new metamorphic study of rocks in the Limbla 1:100 000 mapsheet continues to build on our understanding of the geological evolution of the Aileron Province in Central Australia. Metamorphic rocks in the Limbla 1:100 000 mapsheet outcrop adjacent to a structural boundary with Neoproterozoic units of the Amadeus Basin. The metamorphic rocks preserve evidence for a multiphase tectonic and metamorphic event in the Palaeoproterozoic. Peak-preserved metamorphism likely occurred at upper amphibolite facies conditions and involved partial melting. Subsequent metamorphism at lower greenschist facies is linked to intrusion and cooling of the Atneequa Suite at ca 1.74 Ga. Estimated P–T paths are tentatively linked to published geochronology results to build a timeline of metamorphism in the Limbla 1:100 000 mapsheet.
Download the NTGS Record 2023-005: Metamorphic evolution of the Aileron Province in Limbla through GEMIS.
