Summary of results. Joint NTGS-GA geochronology project: western Amadeus Basin, July 2019-June 2020

This Record presents new Sensitive high-resolution ion microprobe (SHRIMP) U–Pb geochronological results and complementary trace element concentrations for zircon from the Amadeus Basin that were obtained during the Northern Territory Geological Survey–Geoscience Australia (NTGS– GA) geochronology project under the National Collaboration Framework (NCF) agreement. GA’s contribution to this project forms part of the Exploring for the Future (EFTF) Program, which aims to better understand the mineral, energy, and groundwater resources of Northern Australia. The samples were collected in June and July 2019 as part of NTGS Regional Geoscience activities under the Northern Territory Government’s Resourcing the Territory 2018–2022 initiative, and analysed between December 2019 and February 2020. This Record documents results for each sample, comprising sample location and geological context, a description of the target mineral for geochronology, the relevant analytical data, and a brief geochronological interpretation. A summary of this study’s geochronological results is presented in Table 1; sample locations are shown in Figure 1. The complete datasets for geochronological and trace element results are provided in Appendix B; note that trace element concentrations are not interpreted or discussed in this contribution. Full analytical data and interpretations for each sample, along with analytical session-specific details of the calibration data collected on the reference 238U/206Pb and 207Pb/206Pb zircons, are also available via GA’s Geochron Delivery system (http://www.ga.gov.au/geochron-sapub-web/). Bibliographic Reference: Beyer EE, Verdel C, Normington VJ and Magee C1, 2020. Summary of results. Joint NTGS–GA geochronology project: western Amadeus Basin, July 2019–June 2020. Northern Territory Geological Survey, Record 2020-006.