Combining new gravity data, geochronology, reprocessed seismic data and updated stratigraphic correlations, the updated Warburton-Pedirka-Eromanga SEEBASE® has redefined basement structures and tectonic events, as well as refined the depth and geometry of the overlying stacked basin systems in south-eastern NT.
The updated SEEBASE model significantly revises the depth, thickness, and structure of the stacked basin system, highlighting a deeper southern Madigan Trough, thinner northern Madigan and Eringa troughs, and providing new insights into the depth and evolution of the deeper Warburton Basin. The McDills trend and underlying terrane differences have strongly influenced basin formation, deformation, and present-day geometry. A clearer 3D understanding of basin architecture and evolution provides valuable insights for assessing resource potential, including petroleum, geothermal, geological storage, and groundwater systems across the region.
The study was completed by Geognostics Australia Pty Ltd on behalf of NTGS. The Digital Information Package includes a technical report, GIS datasets and metadata. The full package is available for download from GEMIS: Warburton-Pedirka-Eromanga basins SEEBASE update