Summary of results. NTGS laser ablation ICP-MS in situ zircon and baddeleyite geochronology project: Mount Peake Gabbro, Arunta Region

This record presents trace-element and chronologic data collected from zircon and baddeleyite at the Australian ResearchCouncil Centre of Excellence in Ore Deposits (CODES) at the University of Tasmania in June 2015. The work was carried outin support of the Northern Territory Geological Survey (NTGS) regional geoscientific investigations and value adds to co-funded drill core acquired during Geophysics and Drilling Collaborations program, Round 2. Isotope data and interpretationsfor zircon and baddeleyite from samples of Mount Peake Gabbro, Arunta Region in the Northern Territory are presentedherein. The Mount Peake Gabbro is a magnetite-rich gabbro and is host to the Mount Peake Fe-V-Ti deposit. The age of thecountry rocks intruded by the gabbro is unknown but is interpreted to be Palaeoproterozoic thus constraining the maximumcrystallisation age of the Mount Peake Gabbro. The samples were collected with the aim of constraining the timing of thisepisode of mafic magmatism in the Arunta Region. Results from U-Pb dating yielded crystallisation ages of 1053 24 Mafor zircon and 1062 21 Ma for baddeleyite, indicating that intrusion of the Mount Peake Gabbro was synchronous with10901040 Ma Giles Event mafic magmatism.