Geophysics in the Surveys: GA: Update on geophysical survey progress/GSQ: New and upcoming data releases for north-west Queensland/MRT: New gravity data/GSSA: Gawler Craton Airborne Survey update/GSWA: Status of regional aerogravity surveys in Western Australia/GSV and GSNSW: Southeast Lachlan crustal seismic transect

摘要

The South East Lachlan Crustal TransectSeismic line was completed on 29 April2018 (Figure 3). The survey is acollaboration between the GeologicalSurvey of Victoria, Geological Surveyof New South Wales, AuScope Ltd andGeoscience Australia. The $4.5 millionseismic survey (631 km) was acquired byTerrex Seismic and the data will be usedwith other geophysical data to interpretthe geological architecture of easternVictoria and south eastern New SouthWales. The objectives of the survey wereto investigate resource potential andnatural hazards (State infrastructure)by mapping the full crustal thickness(up to 50 km depth), aid geologicalinterpretation across the Delamerian andthe Lachlan fold belts. The line waswidely acknowledged as the mostdifficult logistically and operationallyundertaken by Geoscience Australia andthe State geological surveys.