b'Geophysics in the surveysNewsGeoscience Australia: NewsRecent highlights of Geoscienceout throughout Australia. As part ofCobar-Yathong region airborne Australias geophysical projects, asongoing maintenance to the Australianelectromagnetic survey (AEM) and conducted under the AustralianFundamental Gravity Network, sta\x1eairborne magnetic and radiometric Governments Exploration for the Futurefrom GA and the Geological Survey initiative, and in collaboration with ourof Queensland (GSQ) are currently(AMR) surveyState and Territory survey partners, areundertaking a \x1deld trip to locationsGeoscience Australia, in collaboration summarised below. Details of all currentin northern Queensland to remediatewith the New South Wales (NSW) and recently completed projects andand create AFGN benchmarks by re- Governments Geological Survey of NSW, survey locations can be found in Figure 1establishing destroyed benchmarks andhave been undertaking an airborne and the tables that follow this section. establishing new AFGN benchmarks asAEM survey over the Yathong region of required, plus checking the conditionsNSW (Figure 3). Acquisition is now 100% Australian Fundamental Gravityof other benchmarks (Figure 2). Thiscomplete, with approximately 2700 km Network refurbishment. work is a collaborative e\x1eort betweenof data acquired over the area. The GA and GSQ. Field work will beCobar-Yathong region airborne magnetic Geoscience Australia (GA) is responsiblecompleted by the end of May 2023. and radiometric (AMR) survey is expected for the maintenance of the Australianto commence acquisition in the third Fundamental Gravity Network, whichFor further information on the AFGN,week of May. Acquisition will be along underpins the Australian Nationalplease contact Phillip Wynne, Geophysicist-eastwest lines spaced 200 m apart Gravity Database and provides theGeophysical Acquisition and Processing, atand northsouth lines spaced 2 km datum for gravity surveys carriedPhillip.Wynne@ga.gov.au apart. The objective of this survey is to Figure 1.2021-2023 geophysical surveysin progress, released or for release by Geoscience Australia as part of Exploring for the Future (EFTF) and in collaboration with State and Territory agencies. Projects that are partially or wholly funded by state government agencies are identi\x1ded by the bracketed contributors. Background image of national magnetics compilation (\x1drst vertical derivative of the reduced to pole magnetics), Geoscience Australia, 2019 (see http://pid.geoscience.gov.au/dataset/ga/144725).15 PREVIEW JUNE 2023'