Geological Survey of South Australia: Geophysical plans for 2019 2019 looks to be an exciting year for the Geological Survey of South Australia. At the time of writing, acquisition of the Gawler Craton Airborne Survey (GCAS) was 97% complete (Figure 1). After the final plane lands there will still be an ongoing effort to ensure all the data is of the highest quality before being delivered to stakeholders. The first inversion model packages courtesy of the CSIRO are already available: visit the GCAS webpage ( geoscience/pace_copper/gawler_craton_airborne_survey_ community_information) and click on the map on your area of interest to download a zip package containing all the enhanced geophysical imagery and magnetic source depth models. The GCAS has already identified areas of interest that both the GSSA and CSIRO are keen to investigate. At the time of writing, the GSSA and CSIRO are planning fieldwork to examine closely some geophysical anomalies seen in the GCAS data, as well as geophysical anomalies seen in the Coompana area. Acquisition of ground magnetics and microgravity over the Gairdner Dykes will better constrain the magnetic source depth modelling undertaken by the CSIRO. In the Coompana area we plan to acquire new ground data over the‘pimples’seen in the airborne magnetics. All going well, the results will be presented at the AEGC later this year. The GSSA will build on the release of the AusLAMP SA data at the 2018 Discovery Day by modelling the follow-up in-fill MT survey across the Olympic Domain region, which was acquired in 2018. This year will also see the release of AusLAMP MT state-wide models through the online portal SARIG. In addition, we are planning a marine MT survey in the Spencer Gulf with colleagues of the Scripps Institution of Oceanography. This will fill the data coverage gap around the Eyre and Yorke Peninsulas, an area that covers fundamental lithospheric boundaries linking up into the Olympic Domain. For more information, contact customer services at resources. Phil Heath and Stephan Thiel Geological Survey of South Australia, Department of Energy and Mining Figure 1.  Gawler Craton Airborne Survey now 97% complete. 17 PREVIEW FEBRUARY 2019 News Geophysics in the Surveys