b'Geophysics in the surveys NewsTable 5.Seismic reflection surveys Location Client State SurveyLineGeophoneVP/SPRecordTechnique Commentsname km interval interval lengthDarling GA SA,Darling ~1275 10 10/40 20 2D DeepThis survey will create an image of important crustal CurnamonaNSW,CurnamonaCrustal/ boundaries including the structure of the Delamerian VIC highmargin, which runs through NSW, SA and Vic, separating DelamerianDelamerianresolutionolder rocks of the Gawler Craton and Curnamona deepdeepvibroseisProvince from younger rocks of the Lachlan Fold Belt crustalcrustalseismic(Tasmanides). Acquisition commenced in Jun 2022 and reflection reflectionsurvey survey. concluded in Aug. Raw data for this survey are available survey on request from clientservices@ga.gov.au Quote eCat# 147423. Data processing is complete and the data package is planned for release in late 2023.CentralGA Qld/ Shallow~1257 VariesVaries 3-20 sec2DGA commissioned reprocessing of selected legacy 2D AustralianSA legacy datashallowseismic data in Qld and SA, as part of Exploring for the basins & deepFuture, Australias Future Energy Resources Project. The legacyobjective is to produce a modern industry standard data,2D land seismic reflection dataset to assist in imaging explosive,the subsurface. Reprocessing of these data is complete vibroseis and the data package will be released in early 2024.AdavaleGA Qld Deep andVariesVaries3-20 sec2DGA commissioned reprocessing of selected legacy 2D Basin shallowshallowseismic data in the Adavale Basin, Queensland Australia, legacy data & deepData driven Discoveries Initiative. The objective is to legacyproduce a modern industry standard 2D land seismic data,reflection dataset to assist in imaging the subsurface. explosive,Reprocessing of the legacy data is complete and the vibroseisdata package will be released in the second half of 2023.Table 6.Passive seismic surveys Location Client State SurveyTotal number ofSpacing Technique Commentsname stations deployedAustralia GA Various AusArray 149 temporal~200 kmBroad- The survey covers all of Australia to establish a continental-seismic stations spacingband ~18scale model of lithospheric structure and serve as a months ofbackground framework for more dense (~50 km) movable observationsseismic arrays. Deployment of this national array was completed in June 2023. Data will be acquired over12-18 months.NorthernGAQld/NTAusArray247 broad-band50 kmBroad-bandThe survey covers the area between Tanami, Tennant Creek, Australia seismic stations 1-2 yearsUluru and the WA border. The first public data release of the observationstransportable array was in 2020.See: http://www.ga.gov.au/eftf/minerals/nawa/ausarray Various applications of AusArray data are described in the following Exploring for the Future extended abstracts: AusArray overview: http://pid.geoscience.gov.au/dataset/ga/135284Body wave tomography: http://pid.geoscience.gov.au/ dataset/ga/134501 Ambient noise tomography (including an updated, higher resolution model for the Tennant Creek to Mount Isa region): http://pid.geoscience.gov.au/dataset/ga/135130 Northern Australia Moho: http://pid.geoscience.gov.au/dataset/ga/135179Australia GA Various AusArray,12 high-sensitivity~1000 km Broad-bandSemi-permanent seismic stations provide a back-bone for semi- broad-band4 yearsmovable deployments and complement the Australian permanent seismic stations observations National Seismological Network (ANSN) operated by GA, ensuring continuity of seismic data for lithospheric imaging and quality control. Associated data can be accessed through http://www.iris.eduAusARRAYProject GA/GSV Victoria 21 temporary~100 km Broad-bandData acquired from the movable array sites will add to the Victoriaseismic stations ~12-18scientific understanding of the Earths lithosphere on the Collaborative months ofnational and regional scale. Phase 1 of the deployment (~100 observations km) was undertaken in Mar 2023.Table 7.Survey technical requirementsSurvey typeAuthor ContributorsGA ReleaseMagnetics, radiometrics and horizontalJames GoodwinBrian Minty, Ross Brodie, Mark Baigent, Yvette Mar 2023 http://pid.magnetic gradiometryPoudjomDjomani, Matt Hutchens with acknowledgementsgeoscience.gov.au/dataset/to Peter Milligan, Laz Katona and Mike Barlow ga/14745719 PREVIEW OCTOBER 2023'