b'NewsGeophysics in the surveysWA-MT 202324 models of the West AustralianExploration Incentive Scheme lithosphere. 3D model products willpetrophysical data acquisition The Department has commencedprioritise the use of new MT data such202324its ten year WA-MT survey projectas the recently collected Esperance and which aims to obtain long-periodGoldfields data. GSWA has a five year programme to collect magnetotelluric (LPMT) data coveringpetrophysical data from Exploration the West Australian state to expand theAll magnetotelluric results are availableIncentive Scheme (EIS) co-funded drillcore, Australian Lithospheric Architecturefrom GSWAs MAGIX and GeoVIEW.WAGSWA stratigraphic drillcore or from Magnetotelluric Project (AusLAMP) toplatforms. company-held core on request from Western Australia. Alongside the WA- Subscribe to the GSWA eNewsletterGSWA. Core selection for petrophysics is Array passive seismic programme, themailing list to receive advanceprimarily chosen where data can assist in:WA-MT programme aims to acquirenotification of release dates. Modelling of geophysical data in LPMTdata on a nominal 40 x 40kmregions with coverspaced grid across Western Australia.Sasha BanaszczykCollaborating with the WA Array passiveE sasha.banaszczyk@dmirs.wa.gov.au Interpretation of recent or upcoming seismic programme allows for efficient2D seismic linesand cost-effective acquisition ofClassification of regional stratigraphy LPMTdata. (often in conjunction with geochemistry).Outcomes of this project will include:Increased pre-competitive geosciencedata for reducing mineral exploration riskA world-leading dataset covering the WA state for public use by researchers and industryA lithospheric architecture model complementing the WA Array passive seismic projectIntegration of regional-scale models of MT with already acquired state-wide geophysical datasetsLPMT data is unique in comparison to audio-MT or broadband MT techniques due to its deep depth of investigation. Interpretations of this deep crustal information in the form of 3D models, alongside data products from the WAArray passive seismic programme will significantly add to the knowledge of Western Australias crust and lithosphere.In addition, the results from a state-wide LPMT survey will provide new electrical conductivity models complementary to the electromagnetic products of the continent-wide AusAEM project, and other state-wide geophysicaldatasets. To date, LPMT data has been collected from 333 locations across Western Australia as part of various magnetotelluric survey programmes (Figure 4). In 202324, the WA-MT project commenced with the collection 52 new sites of LPMT data. Moombarriga Geosciences won the tender to acquire LPMT data in the Esperance and Goldfields regions. Future work as part of the project will focus on the continued collection of new LPMT data at a rate of approximately 160 sites per financial year,Figure 4. Location map of LPMT survey locations in Western Australia. Red points show the location of sites and the creation of new 3D conductivitywith new LPMT data collected in 202324.JUNE 2024PREVIEW 25'