The major aquifers of the Maranoa-Balonne-Condamine subregion are associated with the:

  • antecedent systems that form paleochannel infill and broad alluvial cover over much of the subregion
  • fractured rock aquifers within the Main Range Volcanics
  • sedimentary rocks of the GAB
  • major rivers (i.e. the Condamine, Balonne, Dumaresq and Macintyre rivers).

A detailed description of the key aquifer systems is in Section 1.1.4 of companion product 1.1 for the Maranoa-Balonne-Condamine subregion (Welsh et al., 2014). The temporal sequence of geological units and relative groundwater flow potential are identified in a summary of hydrostratigraphic relationships (Figure 9) (Ransley and Smerdon, 2012).

Figure 9

Figure 9 Hydrostratigraphic relationships in the Clarence-Moreton Basin, Surat Basin, Coonamble Embayment and adjoining Eromanga Basin of the Great Artesian Basin

Gp = Group, Fm = Formation, Mbr = Member, Sltst = Siltstone, Sst = Sandstone

Source: Ransley and Smerdon (2012)

Last updated:
16 October 2018
Thumbnail of the Maranoa-Baloone-Condamine subregion

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