b'Geophysics in the surveysNewsGeological Survey of Western Australia: Deep-crustal seismic surveys202324South West, Great Southern and Mid-West regionsThe Geological Survey of WesternThe surveys will be conducted by HiSeisAcquisition on line SW1 is programmed Australia will be conducting aPty Ltd. Survey specifications are: to commence in September 2023.programme of up to 1200 km of deep crustal reflection seismic surveys in theSource: 3 x INOVA AHV-IV VibroseisDavid Howard south and mid-west of the State to imagetrucks @ 40 m vibration point spacing,Geological Survey of Western Australia the crustal structure and geological1 x 24 s sweep David.HOWARD@dmirs.wa.gov.audomains in one of the oldest parts of theReceiver: 1600 x INOVA Quantum 5 Hz Australian landmass (Figure 1). nodes @ 10 m spacing (nominal 200-fold), 20 s listen timeFigure 1.Paths of deep crustal reflection seismic surveys proposed in the south and mid-west of Western Australia.OCTOBER 2023 PREVIEW 22'