by SGL. More and larger surveys were flown in 2017 by Thomson Aviation/ CMGO with a GT-2A gravimeter in the Tanami and northeast Canning Basin and by CGG Aviation with a Falcon gravity gradiometer over the Kidson Basin; and in 2018 by SGL over large tracts of the Kimberley Basin, and the Little Sandy and Great Victoria Desert areas. All the airborne surveys were flown with 2.5 km line spacing with a nominal along-line full-wavelength resolution of 5 km or better. Consequently, the release of the Pilbara survey data later this year will see the northeastern half of Western Australia covered with airborne gravity data at an equivalent resolution to the ground surveys in the southwest. All the new data will be compiled into an update of GSWA’s gravity anomaly map of Western Australia. Funding for both surveys was provided by the Western Australian Government’s Exploration Incentive Scheme. For more information, contact geophysics@dmirs.wa.gov.au or visit www.dmp.wa.gov.au/geophysics. Figure 2. Western Australia “second generation” gravity coverage. David Howard Geological Survey of Western Australia David.HOWARD@dmirs.wa.gov.au News Geophysics in the Surveys 28 PREVIEW JUNE 2019