b'Geophysics in the surveysNewsGeological Survey of Victoria: Southeast Lachlan Crustal TransectThe Geological Survey of Victoria (GSV), Geological Survey of New South Wales, Geoscience Australia and AuScope (utilising funds provided under the NCRIS programme) have collaborated to acquire new geophysical data across the Southeast Lachlan Crustal Transect in southeast Australia. Deep crustal seismic reflection data were acquired in 2018, detailed ground gravity traverses in 2019 and magnetotelluric surveying is being planned for 2020.The project partners have worked together (Figure 1) to complete a preliminary interpretation of the processed deep crustal seismic reflection data. The preliminary interpretation was unveiled by Ross Cayley (GSV) at the Discoveries in the Tasmanides conference during September 2019.These new seismic data demonstrate that the rock packages and structures mapped at the surface can be traced through the whole thickness of the crust under the Australian Alps (Figure2). Interactions between different generations of structures and rockFigure 1.Representatives of Geological Survey of Victoria, Geological Survey of New South Wales and packages are clearly imaged, in waysGeoscience Australia at the seismic interpretation workshop held in Melbourne in February 2019.Figure 2.Southeast Lachlan Deep Crustal Seismic Reflection Survey Line 1 (18GA-SL1) from south of Benalla (left) to west of Tom Groggin (right), see Preview 201, p.21 for location diagram. Top panel: 2D Pre-Stack Time Migrated data to 20 seconds TWT. Bottom panel: Geological interpretation with faults in red and rock packages as coloured blocks, overlaid on the data shown in the top panel.19 PREVIEW OCTOBER 2019'