Summary of results. Joint NTGS-GA geochronology project: greater McArthur Basin, July 2017-August 2018

This Record presents new Sensitive high-resolution ion microprobe (SHRIMP) U–Pb geochronological results from the greater McArthur Basin that were obtained during the Northern Territory Geological Survey – Geoscience Australia (NTGS–GA) geochronology project under the National Collaborative Framework (NCF) agreement, between July 2017 and August 2018. Geoscience Australia’s contribution to this project forms part of the Exploring for the Future Program, which aims to better understand the mineral, energy, and groundwater resources of Northern Australia. A total of 12 samples were analysed in support of ongoing regional geoscientific investigations and mapping programs by NTGS. This Record documents detailed results for each sample individually, encompassing 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 all results from this study is presented in Table 1; the sample locations are shown in Figure 1. 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: Kositcin N and Munson TJ, 2019. Summary of results. Joint NTGS–GA geochronology project: greater McArthur Basin, July 2017–August 2018. Northern Territory Geological Survey, Record 2019-002.