b'Geophysics in the surveysNewsGeoscience Australia: NewsThe end of the financial year brings noga.gov.au/eftf), the 32 000 line km survey rest for the wicked (geophysicist) andwill expand continental regional airborne Geoscience Australia is acquiring andEM coverage across a 500 km-wide belt processing data on a number of nationalof terrain for district-scale base-metal, fronts. With our key collaborative Stateenergy and groundwater investigations. agency partners of Western Australia,At current acquisition rates, the survey South Australia, Northern Territory,should be completed by mid-year, Queensland, New South Wales, Victoriawith the results (including Geoscience and Tasmania, the national pre- Australia inversion routines) released competitive datasets continue to growin the third quarter of 2021. Data in resolution and coverage (Figure 1 andintegration and interpretation will follow tables in the following section). Throughinto 2022; all adding to the long-term front-end tools like the new Geophysicalgoal of national AEM coverage (Figure 3).Acquisition and Data Delivery System tool (GADDS - https://portal.ga.gov.au/persona/gadds) and other 2 - 3D dataDevelopment of the Jin Jin portals (see https://portal.ga.gov.au/),Airborne EM calibration rangeaccess and integratability have neverThe Jin Jin AEM calibration range is been easier. Some select updates follow. located approximately 70 km from the small township of Gingin, Western,Figure 2.Proposed regional AEM survey across Exploring for the Future - EastAustralia (Figure 4). The town has hadthe East Resources Corridor, Exploring for the Future Resources Corridor AEM survey an increasing focus on science withProgramme. At 20 km line spacing, the 32 000 line the establishment of the Australiankm survey will take 3 months to complete. As of A new regional AEM survey commencedInternational Gravitational ObservatoryMay, the survey was at 50% complete. Note that the in April straddling the borders of Southand Gravity Discovery Centre, andproposed survey gap in South Australia has already Australia, Queensland, New South Walesnow the Jin Jin AEM calibration range.been covered with AEM as part of the regional and Victoria (Figure 2). Under the bannerThe calibration range is located whereFrome survey (data available from Geoscience of the Federal Governments ExploringGeoscience Australia, GeologicalAustralia). Line plans are schematic only and do not for the Future Programme (https://www. Survey of Western Australia, CSIROreflect the final flight path map.Figure 1.2019-21 geophysical surveysin progress, planned or still for release by Geoscience Australia in collaboration with State and Territory agencies.JUNE 2021 PREVIEW 24'