These images are of the geological time of the Adelaide Superbasin, or more specifically of the thick pile of sedimentary rocks and minor volcanic rocks that were deposited on the eastern margin of Australia during the time of breakup of the supercontinent Rodinia. The Adelaide Superbasin contains several named basins and sub-basins with the Adelaide Rift Complex being the oldest, largest and most central part.
More specifically, the project primarily refers to the deep time of central-north of South Australia down through the Flinders Ranges and Mount Lofty Ranges, narrowing at the Fleurieu Peninsula and extending onto Kangaroo Island.
Some have noted a similarity in these sedimentary rocks with rocks found in western North America (eg. Newfoundland in eastern Canada, and they have suggested that these rocks were formerly adjacent to each other in the Rodinia supercontinent.