b'Geophysics in the surveysNewsFigure 2.Maps showing first vertical derivative of the total magnetic intensity (left) and ternary radiometric (Right) images from MinEx CRC Cobar AMR survey.GPX Surveys was contracted to undertake the survey. 53 513 line km were acquired 60 m above the ground along lines spaced 200 m apart. Some areas were flown with a closer line spacing as part of industry-funded infill. Government-funded data acquired is available for download through our on-line application MinView, with one industry infill area already released and available for download. The remaining infill areas will be available publicly in December 2022 through MinView.The survey has filled gaps in our existing coverage and improves the resolution where existing surveys have a wider line spacing. The Cobar region has a long exploration history and there are many geophysical surveys covering the area, some Government funded, others by exploration companies. Open-file company surveys have been used in our state wide merge, with government surveys planned around existing open-file surveys. Some of the company surveys used were acquired in the 1970s, which modern survey standards now supersede.The shape of the Cobar AMR survey is irregular for a government survey as it has been designed to:Replace company data that no longer meets modern standardsAvoid areas where higher-resolution company data exists (that will be open-file soon) Figure 3.Map of showing MinEx CRC Mundi AEM survey area.19 PREVIEW DECEMBER 2021'