2.1.2.1.5 Geological structures

The spatial surface distribution of geological structures (e.g. faults) was collated from different data sources, including geological maps, geoscientific datasets from the Queensland and NSW geological survey and the ‘Clarence-Moreton SEEBASE^TM and GIS project’ product (Sommacal et al., 2008) (NSW Department of Primary Industries, Dataset 3). In addition, seismic images were used to qualitatively assess the presence and influence of faults in the subsurface. In seismic images, the upper part of the section (approximately 100 m) is often ‘noisy’, and it is therefore not well understood from this data source if faults extend to the surface.