Since 1990 Frontier Exploration Ltd has explored in the Central Flinders Zone of the Adelaide Geosyncline in order to assess its hydrocarbon and mineral potential, and the relationship of diapirs to these resources. The basic concepts used have not been proved, but results to date are encouraging, and a critical target has been selected. Although the area contains many similar structures, three domal structures, unbreached by diapirs, have been studied in more detail. One of these, Willippa Dome, offers the opportunity to test critical aspects of the programme, namely the presence of hydrocarbons, salt and base metals as well as non metallic minerals. A test hole, preferably cored and logged geophysically to a depth of 1500 to 2000 metres, could assess the resource potential of this important province, and indicate whether further effort is justified.