Although the authors point out that more data is needed to identify the source of the gas, the observations made in this study confirm the presence of fault-controlled fluid flow pathways connecting the stratigraphic levels where the unconventional plays are located with shallower aquifers the Beetaloo basin.
-Many well-name labels are hard difficult to read/illegible. Consider replacing well names on the map with numbers at the well position (white circles, black typeface) and add a table in the legend listing number and corresponding name of the well.